Village of Port Jefferson Mill Creek Watershed Management Plan

Village of Port Jefferson 

Second DRAFT 

Mill Creek 

Watershed Management Plan 

Cashin Associates, P.C. 

November 2010


Second Draft 

MILL CREEK 

WATERSHED MANAGEMENT PLAN 

Submitted to: 


Prepared by: 


1200 Veterans Memorial Highway 

Hauppauge, NY 11788 

November 2010 

This Watershed Management Plan was prepared for the New York State Department of 

State Division of Coastal Resources with funds provided under Title 11 of the 

Environmental Protection Fund.

Acknowledgements 

The Mill Creek Watershed Management Plan was prepared by the diligent efforts of the 

following government officials, agencies, community advisors and consultants. 

STATE OF NEW YORK 

David Paterson, Governor, State of New York 

Lorraine Cortés-Vázquez, Secretary of State 

Dennis Mildner, Coastal Resource Specialist, New York State Department of State 

Tracey L.M. O’Malley, New York State Department of State 

VILLAGE OF PORT JEFFERSON 

Margot Garant, Mayor 

Jim Burke, Trustee 

Lee Rosner, Trustee, 

Adrienne Kessel, Trustee 

Leslea Snyder, Trustee 

DEPARTMENTS 

Bob Tumilowicz, Grants Administrator, Project Manager 

WATERSHED ADVISORY COMMITTEE 

Michael Schwarting 

Mildred Michos 

Peter Koutrakos 

CASHIN ASSOCIATES, P.C. 

Gregory T. Greene, Principal 

Nancy Lenz, RLA, Project Manager

TABLE OF CONTENTS 




ACKNOWLEDGEMENTS 

EXECUTIVE SUMMARY ........................................................................................ ES-1 

1.0 INTRODUCTION.............................................................................................. 1-1 

1.1 PURPOSE OF THE PLAN.............................................................................................. 1-1 

1.2 THE WATERSHED ....................................................................................................... 1-2 

1.3 PROJECT GOALS.......................................................................................................... 1-2 

1.4 PROJECT OBJECTIVES AND METHODOLOGY ...................................................... 1-3 

1.5 WATERSHED ACTION COMMITTEE........................................................................ 1-4 

2.0 WATERSHED CHARACTERIZATION ....................................................... 2-1 

2.1 WATERSHED STUDY AREA DELINEATION........................................................... 2-1 

2.2 GEOGRAPHIC SETTING.............................................................................................. 2-2 

2.2.1 TOPOGRAPHY .................................................................................................................. 2-2 

2.2.2 HYDROLOGY.................................................................................................................... 2-2 

2.2.3 SOILS.................................................................................................................................. 2-7 

2.2.4 CLIMATE ........................................................................................................................... 2-8 

2.2.5 LAND USE AND COVER ................................................................................................. 2-8 

2.2.6 ZONING AND POPULATION ........................................................................................ 2-12 

2.2.7 PARKS, PRESERVES AND RECREATIONAL SPACES.............................................. 2-13 

2.2.8 NATURAL RESOURCES ................................................................................................ 2-14 

2.3 WATER QUALITY CHARACTERIZATION ............................................................. 2-20 

2.3.1 WATER QUALITY CLASSIFICATIONS AND DESIGNATED USES ........................ 2-21 

2.3.2 RESOURCE ISSUES AND IMPAIRMENTS .................................................................. 2-22 

2.3.3 PRIOR WATER QUALITY STUDIES AND MONITORING RESULTS...................... 2-23 

2.3.4 LAWRENCE AVIATION INDUSTRIES SUPERFUND SITE REMEDIATION .......... 2-25 

3.0 EXISTING DRAINAGE AND HABITAT CONDITIONS ASSESSMENT 3-1 

3.1 FIELD DATA COLLECTION AND REACH ASSESSMENT...................................... 3-2 

3.1.1 EXISTING INFORMATION.............................................................................................. 3-2 

3.1.2 INFRASTRUCTURE SURVEY AND MAPPING METHODOLOGY............................. 3-2 

3.1.3 REACH DRAINAGE AND HABITAT ASSESSMENTS ................................................. 3-3 

3.1.4 WATERSHED QUALITY IMPROVEMENT PROJECTS AND PROGRAMS ............. 3-11 

3.2 INTER-MUNICIPAL JURISDICTION AND AGREEMENTS................................... 3-12 

3.2.1 JURISDICTIONAL BOUNDARIES ................................................................................ 3-12 

November 2010 2 ND Draft 

i




3.2.2 FEDERAL .........................................................................................................................3-12 

3.2.3 NEW YORK STATE ........................................................................................................ 3-13 

3.2.4 TOWN OF BROOKHAVEN ............................................................................................ 3-15 

3.2.5 VILLAGE OF PORT JEFFERSON .................................................................................. 3-16 

3.2.6 CITIZEN / CIVIC GROUPS ............................................................................................. 3-16 

3.3 LAND AND WATER USE REGULATIONS AND CONTROLS ............................... 3-17 

3.3.1 REGULATIONS ............................................................................................................... 3-17 

3.3.2 PROGRAMS ..................................................................................................................... 3-22 

3.4 POLLUTION POTENTIAL.......................................................................................... 3-22 

3.4.1 POLLUTANTS OF CONCERN. ...................................................................................... 3-23 

3.4.2 IMPERVIOUS COVER AND RUNOFF POTENTIAL ................................................... 3-27 

3.4.3 POLLUTION LOAD ANALYSIS .................................................................................... 3-29 

4.0 STORMWATER POLLUTANT CONTROL RECOMMENDATIONS..... 4-1 

4.1 WATERSHED-WIDE MITIGATION RECOMMENDATIONS................................... 4-1 

4.1.1 NATURAL RESOURCE IDENTIFICATION, PROTECTION AND RESTORATION 

RECOMMENDATIONS ................................................................................................... 4-1 

4.1.2 EDUCATION AND OUTREACH RECOMMENDATIONS ............................................ 4-5 

4.1.3 POINT AND NON-POINT SOURCE MANAGEMENT AND CONTROL 

RECOMMENDATIONS ................................................................................................... 4-9 

4.1.4 WATER QUALITY AND POLLUTION REDUCTION MONITORING 

RECOMMENDATIONS ................................................................................................. 4-17 

4.2 SITE-SPECIFIC STRCUTURAL MITIGATION AND TARGET PROJECT 

RECOMMENDATIONS .............................................................................................. 4-18 

4.2.1 STRUCTURAL BMPS ................................................................................................... 4-18 

4.2.2 SITE-SPECIFIC STRUCTURAL MITIGATION RECOMMENDATIONS ................... 4-25 

4.2.3 TARGET MITIGATION PROJECT RECOMMENDATIONS ....................................... 4-26 

5.0 CREEK CORRIDOR RESTORATION ......................................................... 5-1 

6.0 IMPLEMENTATION STRATEGIES............................................................. 6-1 

6.1 IMPLEMENTATION SCHEDULE ............................................................................... 6-2 

6.2 IMPLEMENTATION PARTNERS................................................................................ 6-3 

6.3 CODE AND ORDINANCE ENFORCEMENT AND REVISION ................................ 6-5 

6.4 SOURCES OF FUNDING ............................................................................................. 6-6 

6.4.1 FEDERAL ........................................................................................................................... 6-6 

6.4.2 NEW YORK STATE .......................................................................................................... 6-7 

6.4.3 SUFFOLK COUNTY.......................................................................................................... 6-9 

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November 2010 2 ND Draft




6.4.4 PORT JEFFERSON VILLAGE ........................................................................................ 6-10 

6.5. PHASE II STORMWATER PERMIT COMPLIANCE ............................................. 6-10 

6.6 MONITORING AND ASSESSMENT ........................................................................ 6-12 

7.0 REFERENCES................................................................................................... 7-1 

LIST OF TABLES 

Table 2-1 Average Impervious Cover .............................................................................. 2-11 

Table 2-2 Creek Corridor Plant Species Inventory.....................................Follows Page 2-14 

Table 2-3 Port Jefferson Harbor South and Tributaries Use Impairments ....................... 2-23 

Follows page: 

Table 3-1 Land Use and Impervious Cover...................................................................... 3-28 

Table 3-2A Annual Watershed Pollution Load Estimates................................................... 3-32 

Table 3-2B Annual Road ROW Pollution Load Estimates ................................................. 3-32 

Table 4-1 Neighbor Stewardship - Pollution Source Control BMPS ................................. 4-6 

Table 4-2 Hotspot Pollution Prevention - Pollution Source Control BMPS....................... 4-7 

Table 4-3 

Municipal Pollution Prevention and Good Housekeeping - Pollution Source 

Control BMPS .................................................................................................. 4-10 

Table 4-4 Reach Stormwater Assessment and Structural Mitigation Recommendations. 4-18 

Table 5-1 Creek Corridor Restoration Recommendations.................................................. 5-1 

Table 6-1 Recommendations Implementation Strategies ................................................... 6-1 

LIST OF MAPS........................................................................................Follows page:7-2 

1 Watershed Boundary 

2 Topography 

3 Land Use 

4 Municipal Lands and Recharge Basins 

5 Outfalls 

6 Drainage Structures Key Map 

6A Drainage Structures 1 

6B Drainage Structures 2 

6C Drainage Structures 3 

6D Drainage Structures 4 

7 Habitat Assessment 

8 Target Projects and Mitigation Recommednations 

9 Creek Corridor Restoration Recommendations 

APPENDIX A - GIS Data Tables for Drainage Infrastructure 

APPENDIX B - Lawrence Aviation Industries Plume Figure 

SCDPW Port Jefferson Sewer District Boundary Map 

APPENDIX C - Riparian Buffer Plant List 


iii

LIST OF ABBREVIATIONS AND ACRONYMS 




BMP 

CBI 

CEA 

CF 

CCMP 

County 

CR 

CF 

DCR 

DO 

FC 

GIS 

GPS 

HHW 

IDDR 

IPM 

LF 

LIPA 

LIRR 

LISS 

MF 

mg/l 

MPN 

MS4 

NPDES 

NYCRR 

NYS 

NYSDEC 

NYSDOH 

NYSDOS 

NYSDOT 

NYSSMDM 

Plan 

PWL 

ROW 

Rte. 

SC 

SCDHS 

SCWA 

SF 

SPDES 

TMDL 

TN 

Best management practice 

Catch basin insert 

Critical Environmental Area 

Cubic feet 

Comprehensive Conservation and Management Plan 

Suffolk County 

County Road 

Cubic feet 

NYSDOS Department of Coastal Resources 

Dissolved oxygen 

Fecal coliform 

Geographical Information System 

Global Positioning System 

Household hazardous waste 

Illicit Discharge Detection and Response 

Integrated Pest Management 

Linear feet 

Long Island Power Authority 

Long Island Rail Road 

Long Island Sound Study 

media filter 

milligrams per liter 

Most Probable Number 

Municipal Separate Storm Sewer System 

National Pollution Discharge Elimination System 

New York Code of Rules and Regulations 

New York State 

NYS Department of Environmental Conservation 

NYS Department of Health 

NYS Department of State 

NYS Department of Transportation 

NYS Stormwater Managers Design Manual 

Mill Creek Stormwater Management Plan 

Priority Waterbodies List 

right-of-way 

Route 

Suffolk County 

Suffolk County Department of Health Services 

Suffolk County Water Authority 

Square feet 

State Pollution Discharge Elimination System 

Total Maximum Daily Load 

total nitrogen 


v




Town 

TP 

TSS 

USACE 

USEPA 

USGS 

Village 

VOC 

WQI 

WQSE 

WQV 

Town of Brookhaven 

total phosphorus 

total suspended solids 

US Army Corps of Engineers 

US Environmental Protection Agency 

US Geological Survey 


Volatile Organic Compound 

Water Quality Inlet 

Water Quality Storm Event 

Water Quality Volume 

vi 





EXECUTIVE SUMMARY 

Description, Purpose, and Goal of Plan 

Mill Creek is a small tributary located in the downtown of the Village of Port Jefferson. 

The creek collects runoff from a large watershed that includes the urbanized downtown 

area. Mill Creek is a major outfall into the Port Jefferson Harbor, subsequently draining 

to the Long Island Sound and influencing these critical natural resource’s water quality 

and biological systems. 

The overall goal of the Mill Creek Watershed Management Plan is to provide a 

mechanism to restore, enhance and protect the Mill Creek and the community, by 

ultimately improving water quality, the corridor environment, and the aesthetic value of 

the watershed. This Plan focuses on measures and strategies to reduce the pollutant loads 

generated in this watershed and provides recommendations for improvements to the creek 

corridor that will enhance the creek flow, habitat and aesthetics of the corridor. It is the 

intent of this Plan to create a vision for the corridor that will: 

• Improve the quality of the water discharging into the creek and the harbor 

• Enhance the biological integrity and values of the Mill Creek corridor 

• Protect the natural and open space values along the corridor for public enjoyment 

and preservation of community character 

• Improve habitats and living resources within the creek corridor 

• Support and encourage watershed educational programs and outreach efforts that 

support protection and restoration of the creek corridor 

• Provide a comprehensive framework of guidance by which government entities, 

citizens and organizations can restore, manage and preserve the Mill Creek and its 

watershed 


ES-i




• Recommend methods to improve institutional programs and legal jurisdictions to 

enhance protection of surface waters 

• Provide a process to measure creek corridor restoration progress 

Study Area 

The study area for this plan is the Mill Creek watershed. The 517-acre watershed is 

located in the center of the Village of Port Jefferson. The Mill Creek watershed is 

located on the north shore of Suffolk County, NY along the southern end of Port 

Jefferson Harbor. The boundaries of the watershed study area are described in Section 2 

and shown on Map 1. 

Methodology 

The methodology for the Plan’s development involved the following steps and tasks: 

• Creating the Mill Creek Watershed Action Committee 

• Providing inventory, description, and assessment of existing watershed 

conditions, outfalls and creek corridor 

• Gathering relevant information regarding the Mill Creek and its watershed from 

applicable agencies and resources 

• Conducting field assessment of the drainage infrastructure system in the 

watershed including inlet locations and piping systems 

• Developing goals and objectives to facilitate preservation, protection and 

restoration of the creek 

• Identifying drainage areas, significant nonpoint pollution sources and pollutant 

loads 

• Developing a program of watershed-wide mitigation strategies for pollution 

reduction including source control pollution reduction BMP measures for 

residents, property owners, businesses and municipal employees and departments 

• Identifying site-specific and target structural pollutant mitigation capital projects 

to reduce pollutant loads 

ES-ii 





• Assessing the creek corridor and identifying restoration and protection 

recommendations to improve the habitat and aesthetics of the corridor 

• Establishing a framework for implementing the recommendations and identifying 

project funding sources 

Community Outreach 

A Mill Creek Watershed Action Committee was formed to assist with the planning 

process. The committee included a variety of individuals with interest in the goals of this 

Plan. The committee held seven meetings to discuss various watershed topics and issues. 

During these meetings, two drafts of the plan were reviewed and commented on by 

committee members. Two public meetings were held where the Plan was presented to 

the community and the community provided comment. 

Recommendations 

Mitigation strategies and recommendations are measures that address existing pollutant 

loads and creek corridor issues. The measures include both preventative measures that 

will reduce the amount of pollution deposited in the watershed, and corrective projects 

and recommendations that remove pollutant loads to prevent discharge into the creek and 

that will restore the creek corridor habitat and aesthetics. The strategies and 

recommendations in this Plan include: 

• Watershed–wide pollutant source reduction best management practices for 

neighborhoods stewardship, hotspots pollution prevention, and municipal good 

housekeeping 

• General structural project recommendations for site-specific locations throughout 

the watershed 

• Target pollution removal projects for six specific locations in the watershed. The 

proposed target projects include: 

• Municipal maintenance of existing stormwater control facilities 

• Eastern municipal parking lot storm drainage improvements 

• Inwood Avenue and Myrtle Avenue storm drainage improvements 


ES-iii




• Barnum Avenue stormwater mitigation, habitat restoration and bridge 

replacement 

• Brook Road Drainage improvements, habitat restoration and pond dredging 

• Old Post Road stormwater quality volume infiltration 

• Restoration projects along the creek corridor. The proposed projects include: 

• tidal flow improvement 

• sediment removal 

• invasive species removal 

• riparian buffer improvements 

• streambank stabilization 

• habitat assessment 

• public access and aesthetic enhancements 

• Funding sources for corrective watershed impact measures and a framework for 

undertaking implementation of the recommendations of this Plan 

ES-iv 





1.0 INTRODUCTION 

1.1 PURPOSE OF THE PLAN 

Watershed Management Plans (WMPs) guide the long-term management of a 

community’s land and water resources with the ultimate goal of protecting and improving 

both water quality and living resources. A WMP is necessary because there is evidence 

that water quality and natural resources of Mill Creek corridor have been impaired. This 

watershed management and corridor restoration plan analyzes these impacts as they relate 

to the watershed and corridor by examining water quality, natural resources, wildlife 

habitats, and the surrounding built environment. The plan identifies impairments and 

examines options to either eliminate or mitigate the source or sources of the impairment. 

It proposes actions within the watershed based on resources, policies, priorities, and 

regulatory responsibilities that, if implemented, will protect the creek from further 

degradation. Preparation of the watershed management and corridor restoration plan is 

also an important step toward protecting, preserving, and managing Port Jefferson Harbor 

and the Long Island Sound. 

The Mill Creek Watershed Management Plan (Plan) will serve as a blueprint for actions 

that government agencies and non-governmental organizations can utilize to protect the 

natural resources of the Mill Creek watershed. The plan creates a vision for the 

watershed and identifies those projects and opportunities that, when implemented, will 

help in achieving this vision. The framework of this plan follows and adheres to the 

accepted NYSDOS framework for watershed management, will guide future decisions, 

and become a point of reference by which progress can be measured. The Plan will guide 

long-term development of the Mill Creek watershed’s land and water resources to 

improve water quality in the creek and subsequently the southern portion of Port 

Jefferson Harbor. 

November 2010 2 ND Draft 1-1




1.2 THE WATERSHED 

A watershed is defined as the area of land that drains to a particular point along a creek, 

stream or other waterbody. Each body of water has its own watershed, which is 

determined by topography, drainage infrastructure, surface hydrology and groundwater 

flow. Topography is a key watershed element, with the boundary of a watershed defined 

by the highest elevations surrounding the waterbody. A drop of water falling outside of 

the boundary could not theoretically surface drain to the identified watershed. The actual 

portion of the watershed that drains to the waterbody may be altered by the addition of 

drainage infrastructure and changes to surface areas by development, regrading or surface 

materials such as asphalt or concrete. 

Mill Creek and its watershed are located on the north shore of Long Island in the Village 

of Port Jefferson, and is a tributary to Port Jefferson Harbor, which drains to the Long 

Island Sound (the Sound). Mill Creek is a small tributary located in the downtown of the 

Village of Port Jefferson. The creek collects runoff from a large portion of the watershed 

that includes the urbanized downtown area. Development surrounding Mill Creek has 

adversely influenced the creek and riparian corridor. 

1.3 PROJECT GOALS 

The overall goal of the Mill Creek Watershed Management Plan is to provide a 

mechanism to restore, enhance and protect the Mill Creek to improve the corridor 

environment, the water quality and the aesthetic value to the community. This Plan 

focuses on measures and strategies to reduce the pollutant loads generated in this 

watershed and provides recommendations for improvements to the creek corridor that 

will enhance the creek flow, habitat and aesthetics of the corridor. It is the intent of this 

Plan to create a vision for the corridor that will: 

• Improve the quality of the water discharging into the creek and the harbor, and by 

extension, the Long Island Sound 

• Enhance the biological integrity and values of the Mill Creek corridor 

1-2 November 2010 2 ND Draft




• Protect the natural and open space values along the corridor for public enjoyment 

and preservation of community character 

• Improve habitats and living resources within the creek corridor 

• Support and encourage watershed educational programs and outreach efforts that 

support protection and restoration of the creek corridor 

• Provide a comprehensive framework of guidance by which government entities, 

citizens and organizations can restore, manage and preserve the Mill Creek and its 

watershed 

• Recommend methods to improve institutional programs and legal jurisdictions to 

enhance protection of surface waters 

• Provide a process to measure creek corridor restoration progress 

1.4 PROJECT OBJECTIVES AND METHODOLOGY 

The following project objectives served as the methodology for completion of the WMP 

and its subsequent implementation. 

• Create a Mill Creek Watershed Action Committee 

• Provide inventory, description, and assessment of existing watershed conditions, 

outfalls and creek corridor 

• Gather relevant information regarding the Mill Creek and its watershed from 

applicable agencies and resources 

• Conduct field assessment of the drainage infrastructure system in the watershed 

including inlet locations and piping systems 

• Develop goals to facilitate preservation, protection and restoration of the creek 

• Identify drainage areas, significant nonpoint pollution sources and pollutant loads 

• Develop a program of watershed-wide mitigation strategies for pollution 

reduction including source control pollution reduction BMP measures for 

residents, property owners, businesses and municipal employees and departments 

• Identify site-specific and target pollutant mitigation capital projects to reduce 

pollutant loads 





• Assess the creek corridor and identify restoration and protection 

recommendations to improve the habitat and aesthetics of the corridor 

• Establish a framework for implementing the recommendations and identifying 

project funding sources 

1.5 WATERSHED ACTION COMMITTEE 

A Mill Creek Watershed Action Committee was formed to assist with the planning 

process. The community included a variety of individuals with interest in the goals of 

this Plan. The committee held seven meetings to discuss various watershed topics and 

issues. During these meetings, two drafts of the plan were reviewed and commented on 

by committee members. 





2.0 WATERSHED CHARACTERIZATION 

The watershed characterization includes a delineation of the watershed that contributes 

surface runoff to Mill Creek, and describes the available information or factors that have 

been identified as contributing to the deterioration of water quality of the waterbodies. 

The watershed characterization describes the following aspects of the study area: 

• Watershed boundaries through delineation of the lands that drain to the surface 

waters. 

• Geographic setting including topography, hydrology, soils, climate, land use and 

cover, zoning and population, park and preserved lands, and natural resources 

including habitats, wetlands, and invasive species. 

• Water quality characterization through review of existing records and data 

including classifications and designated uses, known issues and impairments, 

prior studies and monitoring results, and pollution remediation efforts. 

2.1 WATERSHED STUDY AREA DELINEATION 

The Mill Creek watershed is the central watershed located within the Village of Port 

Jefferson (Map 1). The creek is a perennial groundwater-fed freshwater stream and pond 

system that receives large inputs of stormwater runoff during significant storm events. 

The creek is freshwater from the headwaters northeast to Barnum Avenue. The stream 

segment from Barnum Avenue to the outfall to Port Jefferson Harbor is tidal. It should 

be noted that it appears that a blockage under Barnum Avenue may be preventing 

upstream tidal exchange west of Barnum Avenue. This is discussed in sections 2.2.2.1 

and 3.1.3.1. The watershed limits are shown on aerial photography on Map 1 of this 

Plan. 





2.2 GEOGRAPHIC SETTING 

This section includes descriptions of the geographic factors that determine the watershed 

boundaries, affect the conditions of the runoff, and impact the recommendations and 

strategies for water quality improvements. In addition, this section includes an analysis 

of the surface areas that drain to Mill Creek and a description of the reaches of the creek. 

2.2.1 TOPOGRAPHY 

The topography and stormwater runoff patterns of the lands surrounding Mill Creek were 

assessed using United States Geological Survey (USGS) topographic maps and NYS GIS 

data. The area topography is shown on Map 2. The general landform of the Mill Creek 

watershed can be generally describe as steep to rolling moraine to the east, west and 

south, and a relatively flat valley in the northern section of the Village. The elevation 

ranges from approximately 10 feet above mean sea level (MSL) at the northern watershed 

boundary to approximately 180 feet above MSL at the southern watershed boundary. 

The watershed extends approximately 5,500 feet south from the northern boundary at 

West Broadway (NYS 25A). Significant grading to construct area roads and housing 

developments has altered the drainage pattern throughout the watershed. Much of the 

land within the watershed that is identified as vacant on the Map 3 - Land Use is steeply 

sloped land that is not suitable for development. 

There has been significant filling in the flood zone on both sides of the creek particularly 

at several bulkheaded segments and other areas with steep side slopes, including the 

creek segment west of Barnum Avenue. 

2.2.2 HYDROLOGY 

The following section includes a description of the hydrology and methods used to 

determine the surface drainage area of the watershed, groundwater flows, and sanitary 

disposal systems and issues. 





2.2.2.1 Surface Hydrology 

In its current form, the creek’s headwaters originate at a vernal seep located on the 

western side of Brook Road at the intersection with Longfellow Lane and terminate 

at a piped outfall into Port Jefferson Harbor. The main creek is approximately 

2,900 linear feet in length. Several additional surface freshwater seeps discharge 

into Mill Creek in the Brook Road area. Stream length varies depending on 

seasonal fluctuations in groundwater levels, prevailing weather patterns, and 

resultant stormwater inputs. Mill Creek included a branch that extended south 

through the municipal parking lot behind the commercial district on the west side 

on Main Street/Route 25a. This branch was culverted during the construction of the 

parking lot, but still contributes perennial flow to Mill Creek. A large portion of the 

drainage infrastructure within the watershed ties into this culverted section. 

Preparation of this Plan included review of drainage structure connectivity, along 

with the locations of topographic high points, to determine the limits of the drainage 

areas contributing runoff to the creek. The Mill Creek watershed was determined to 

encompass a total of 517 acres or 0.81 square miles. The delineation is discussed 

further in Section 3.0 Existing Drainage and Habitat Condition Assessment. 

The northern portion of the creek from the harbor outfall to the Barnum Avenue 

area is tidally influenced. The tidal range in the harbor is 6.59’. The tidal influence 

in the creek may be impacted by a tide gate that exists at the harbor outfall. It is not 

known if the tide gate is functioning properly to reduce tidal action in the creek. At 

Barnum Avenue, blockages beneath or near the culvert may prevent tidal influence 

upstream of this location. Potential blockages include unknown materials in the 

structure beneath Barnum Avenue, sediment deposits and phragmites infestation 

east of the culvert and/or an exposed sanitary force main east of Barnum Avenue. 





2.2.2.2 Drainage Infrastructure 

The Mill Creek watershed contains an extensive subsurface stormwater 

conveyance system that includes drainage inlets and piping that direct stormwater 

runoff to outfalls into Mill Creek. As part of the requirements of the New York 

State Pollution Discharge Elimination System (SPDES) General Permit for 

Stormwater Discharge for Municipal Separate Storm Sewer Systems (MS4s), the 

Village mapped the locations of Village outfalls and inlets structures. The mapped 

structures were reviewed and the piping system assessed as part of this field data 

collection completed for this Plan. The results of the field investigation are 

described in Section 3.1.3 of this Plan. The data collected on the drainage 

structures is included in Appendix A of this Plan. 

2.2.2.3 Flood Zones 

The eastern segment of Mill Creek is located within a Federal Emergency 

Management Agency (FEMA) designated flood zone. The flood zones were 

updated effective September 2009. The flood zone extends south from the harbor 

to the south side of Mill Creek to Barnum Avenue. The creek is within Flood 

Zone AE (elevation 8). AE (el 8) is defined as an area inundated by 100-year 

flooding (a 1% chance of flooding each year) for which a base flood elevation 

(BFE) of eight has been set. BFE is the height of a base flood in relation to a set 

datum of mean sea level. The majority of the creek, from Barnum Avenue to the 

headwaters, is outside of a FEMA flood zone, except for a small segment between 

Brook Road and Barnum Avenue. This area within the FEMA flood zone is 

adjacent to the low land area within an existing boatyard and is subject to overland 

flooding from the harbor. Detailed flood zone maps are available for viewing at 

www.fema.gov/hazard/map/firm.shtm. 





2.2.2.4 Groundwater Flow 

Some areas of the watershed no longer drain to Mill Creek but are intercepted by 

drainage leaching structures that infiltrate runoff to groundwater. This runoff may 

eventually reach the creek in the form of groundwater flow. Due to the filtering 

action of the soils, this flow will have substantially lower pollutant levels than the 

surface flow that reaches the creek and harbor. 

According to the Suffolk County Department of Health Services (SCDHS) Water 

Table Contours Mapping, dated March 2002, the depth to groundwater ranges 

from sea level at the harbor to approximately 25 feet at the southern limits of the 

watershed (Sheep Pasture Road/North Country Road). 

According to the Suffolk County Hydrogeologic Zones Map, the Mill Creek 

watershed is located within Hydrogeologic Zone I. According to the 

hydrogeologic zone descriptions included in the Special Ground-water Protection 

Area Project (LIRPB, 1986), Zone I is characterized as a major deep recharge 

zone, contributing water to the middle and lower portions of the Magothy Aquifer. 

As the source of water supply for the majority of Nassau and Suffolk County 

residents, Zone I requires careful management. The greater part of this zone is 

urbanized and subject to contamination, although several sections of the northern 

portion of this zone are relatively undeveloped and provide opportunities for clean 

recharge of the aquifers. 

2.2.2.5 Sanitary Waste Disposal 

Sanitary waste disposal in the watershed is performed through two methods. A 

significant portion of the downtown section of the Village of Port Jefferson is 

within Suffolk County Sewer District No. 1 - Port Jefferson. The sewage 

treatment plant and collection system are under the jurisdiction of Suffolk County. 

. Many of the downtown buildings are connected to this sewer system. Sewer 





District No. 1 is defined largely by the NYS Route 25A corridor. The sewer 

district includes all commercially designated land along this corridor, as well as 

surrounding residential properties on the adjacent side streets. Appendix B 

contains a map that shows the limits of the sewer district boundary. The 

approximate boundaries of this area are the Long Island Rail Road to the south, 

East and West Broadway to the north, Belle Terre Road to the east, and Barnum 

Avenue to the west, as well as the area surrounding Beach Street north of Route 

25A where the sewage treatment plant is located. 

Suffolk County records show that 151 commercial businesses, 141 residences 

(includes apartment houses, condominiums, cooperatives, inns and rooming 

houses) and 28 not-for-profit or municipal parcels are connected to the PJWWTP. 

Several of the connectees are developments or properties located outside the 

district, including St. Charles Hospital, John J. Mather Hospital, School District 

No. 16, a nursing home and apartment complexes. The County does not maintain 

records of the properties that are within the district but are not connected. 

The PJWWTP discharges to the southwestern section of Port Jefferson Harbor. 

The PJWWTP has a capacity of 1 million gallons per day and was upgraded to 

include an ultraviolet treatment system in 2007. 

A sanitary sewer piping system force main crosses Mill Creek just east of Barnum 

Avenue. The main at the creek crossing is exposed in the creek canal creating an 

obstruction of flow and a sediment and debris trap in the channel. 

Those locations outside of the sewer district boundary or not connected to the 

sewage treatment plant accomplish sanitary waste disposal through individual onsite 

septic systems or cesspools. 





2.2.2.6 Water Supply 

Suffolk County Water Authority (SCWA) provides all of the public water supply 

wells within the watershed. Service to this region is administered through the 

Authority’s central regional office. SCWA states that the majority of the water 

served to SCWA customers is pumped from the Magothy aquifer. 

2.2.3 SOILS 

In general, soils types in the watershed area are similar to those found throughout the 

north shore of Long Island. Soil associations are landscapes having distinctive general 

soil properties. Each association is named for the major soils it contains, and normally 

consists of one of more major soil type and at least one minor soil. 

Based upon information obtained in the Soil Survey of Suffolk County, New York (U.S. 

Soil Conservation Service, April 1975) and review of development since 1975, the 

downtown village center and much of the land surrounding Mill Creek are primarily 

comprised of urban land, with cut and fill lands to the south and west. Cut and fill land is 

made up of areas that have been altered by grading operations associated with 

development. These lands are cut to make room for streets and parking lots, and later 

filled in to the appropriate finished grade. Due to the change in soil type and location, as 

well as the depth of cuts and fills, identification of soils is not possible. The soil that 

remains after grading operations has low available moisture capacity, is droughty, and is 

low to very low in natural fertility. Urban land is defined as an area consisting of more 

than 80 percent coverage by buildings and pavement. These areas have very low levels 

of pervious land, with examination and identification of the remaining soils being largely 

impractical. 

The remainder of the watershed area soils are characterized as Carver and Plymouth 

sands, Haven loam, Riverhead sandy loam, and Riverhead and Haven soils outside of the 

downtown village center. The Riverhead, Plymouth and Haven series soils are generally 





deep, well drained, medium to moderately coarse textured soils. Permeability is 

moderately-rapid to rapid with low fertility. Native vegetation associated with these soils 

consists of black oak, white oak, red oak, scrub oak, and pitch pine. Carver Series soils 

are generally deep, excessively drained, coarse texture soils with rapid permeability. 

These soils have low available moisture and low natural fertility. Native vegetation 

includes white oak, black oak, scrub oak, and pitch pine. 

Since the 1975 soils maps were developed, the watershed has seen additional 

development and the areas that should be identified as Urban or Cut & Fill have 

expanded considerably. In addition, the areas that are not developed are typically steeply 

sloped making any potential development difficult. 

2.2.4 CLIMATE 

Temperatures in Suffolk County in the winter average 32.4 degrees Fahrenheit, compared 

to a summer average of 71.9 degrees. The Suffolk County area receives a total annual 

precipitation of 42-inches, with a portion of this figure including snowfall. The average 

annual snow depth for Suffolk County is 30.0-inches. 

2.2.5 LAND USE AND COVER 

The land use and cover section of the Plan includes a description of the predominant land 

uses in the watershed and the role that impervious cover plays in the generation of 

stormwater runoff and pollutant load calculations. 

2.2.5.1 Land Use 

Land uses and activities often play an important role in surface water usage and 

the quality of those waters. For that reason, land use is a consideration in the 

development of a WMP. The land uses within the Mill Creek watershed are 

shown on Map 3 as contained in the NYS GIS database. The predominant land 

use in the Mill Creek watershed is residential, including high- and medium-density 





single-family detached housing including several townhouse and apartment 

complexes. 

Land uses identified as community services are located through the watershed and 

contain a wide variety of uses. The actual land uses of community service lands 

include the campuses of Earl L. Vandermeulen High School and Port Jefferson 

Middle School, St. Charles Hospital and Mather Hospital, Village of Port Jefferson 

athletic fields, several Village-owned parking districts and Cedar Hill Cemetery. 

Numerous parcels have been identified as vacant; however, these parcels are 

generally associated with parkland or residential cluster development, or have 

topography that is too steep to allow development. 

Commercial land uses are located along Main Street/Route 25A, West Broadway 

and Belle Terre Road. 

Individual parcels within the watershed are identified as recreation and 

entertainment or as public service. There are no industrial or wild, forested, 

conservation or public lands in the watershed. 

This GIS data has been further assessed to provide land use data that coincides 

with the land use categories contained in the NYS Stormwater Design manual that 

are required to provide an estimate of impervious surfaces as described in Section 

2.2.5.2 below for the pollutant loading analysis contained in Section 4.1.3. 

Medium-density residential accounts for 208 acres and is predominantly located 

along the western and southern limits of the watershed. High-density residential 

accounts for 72.5 acres and is generally located closest to the business district 

between Route 25A and High Street. 





Open lands and cultivated areas account for 87.9 acres of the watershed and 

include locations such as the Village parkland, school grounds and the cemetery, 

as well as the undeveloped parcels in the watershed. The open and cultivated 

lands are spaced throughout the watershed and include lands identified as vacant 

or public service in the GIS database. 

Roads, parking districts and the downtown business district encompass 81.3 acres 

of the watershed. The parking district and business district are located at the 

center of the watershed close to Port Jefferson Harbor and extend south along 

Route 25A. The parking districts are identified as community service in the GIS 

database. 

Commercial land use includes 68 acres of commercial usage located outside of the 

downtown business district within the watershed. The commercial areas are 

generally located along Broadway, Belle Terre Road and the southern portion of 

Route 25A. 

The land uses within the Mill Creek watershed are shown on Map 3, from data 

included in the NYS GIS database. 

2.2.5.2 Impervious Cover 

The conversion of land underlain by permeable soils to impervious surfaces, such 

as streets, sidewalks, roofed areas and parking lots, significantly reduces on-site 

infiltration of precipitation to groundwater and creates large volumes of surface 

runoff. Runoff from impervious surfaces flows to either surface water or to 

drainage infrastructure systems that may discharge to surface waters or to 

groundwater. Runoff from impervious surfaces that reaches surface waters has 

several hydrologic consequences. Stormwater does not replenish the ground-water 

systems, and peak stream discharges during individual storms are larger and more 

variable than discharges from undeveloped areas. The ratio of surface runoff to 





base flow in streams that receive street runoff is increased. Pollutants that wash 

off lawn and landscaped area and from impervious surfaces are carried directly 

into surface waters. 

Impervious cover is one of the factors considered in the analysis of pollutant 

loading in Section 4.1.3 Pollutant Load Analysis. Percentage of impervious has 

been found to be tied to land use and the density of the development with low 

density residential land use having the lowest levels of impervious surface while 

commercial development has been found to have some of the highest levels of 

impervious development. Impervious cover was estimated using an average of the 

mean values provided on Table 4.2 of the NYS Stormwater Management Design 

Manual. A value of 90% impervious was added to this table for roads, parking 

districts and downtown business areas based on the field assessment of the 

impervious area of these land uses. The watershed on a whole is estimated to be 

41.7% impervious. 

Table 2-1 

Average Impervious Cover 

Land Use Category 

Average 

Impervious Cover 

High Density Residential (typically < 1/4 ac) 40% 

Medium-Density Residential (1/4 ac to 1/2 ac)/ 

28% 

Institutional Areas (Hospitals, Government Offices, 

Schools) 

Commercial Areas 70% 

Open Urban Land/Cultivated Areas (Park Land, 9% 

Recreational Areas, Golf Courses) 

Road Right-of Ways/ Parking and Business District 90% 

Average Impervious Factors % – Averaged from mean value on the 

NYSSMDM Table 4.2 Land Use & Impervious Cover (2008), Road Right-of 

Ways, Parking Business District added as 90%. 

It should be noted that for the design of drainage infrastructure systems the actual 

impervious percentage will be based on the actual project limits and area and may 





vary from the impervious percentages used for planning purposes in this 

document. 

2.2.6 ZONING AND POPULATION 

The development trends section of this report includes a description of the zoning in 

place in the watershed and the population of the communities where the watershed is 

located. 

2.2.6.1 Zoning 

According to a Village Zoning Map dated 1997, residentially zoned, single-family 

parcels (Zones R-B2 and R-B3) account for approximately two-thirds of the Mill 

Creek watershed. A central commercial zone (C-1) is located in the northern 

section of the watershed along Main Street (Rte 25A) from Old Post Road to the 

northern limits of the watershed boundary. A second commercial zone (C-2) is 

located south of the intersection Main Street (25A) and Sheep Pasture Road/North 

Country Road. Land designated residential or office (R-O) is located along Main 

Street (25A) from Old Post Road to Sheep Pasture Road/North Country Road. An 

additional section of residential or office land is located on the west side of Belle 

Terre Road. Along the eastern section of the watershed boundary, the land is 

designated as professional office (P-O); St. Charles and Mather Hospitals, as well 

as several medical offices, are located within this zone. There is an additional 

section of professional office land located in the southwestern section of the 

watershed area along Dark Hollow Road. Two sections of moderate density 

residential land (R-M) are also located along Dark Hollow Road in this portion of 

the watershed. 

This watershed is centered on the oldest part of the Village, which was a 

commercial center as early as the mid-1800s and was tied to the major 

shipbuilding operations centered on the harbor. Within the watershed, parcels are 

almost entirely developed and the majority of proposed new development would 





be on sites which were previously developed. Due to the highly developed nature 

of the watershed, it not expected that major rezoning would be a factor in future 

development within the watershed. 

2.2.6.2 Population 

The following population data was taken from the Long Island Power Authority’s 

2008 Long Island Population Survey. Long Island was home to approximately 

2.87 million people, with Suffolk County accounting for about 1.5 million of the 

total. The Village of Port Jefferson had a population of 8,192. The watershed area 

accounts for approximately 25% of the Village’s population, or 2,048 residents. 

Review of US Census data from 1990 and 2000 show that the population of the 

Village of Port Jefferson increased approximately 5% in that period and 

approximately 4.6% from 2000 to 2008 based on the LIPA data discussed above. 

Due to the developed nature of the watershed, it is expected that most of the 

population increase is occurring in the outer portions of the Village where some 

parcels of land are available and development can still occur. 

2.2.7 PARKS, PRESERVES AND RECREATIONAL SPACES 

There are two park areas within the Mill Creek watershed, both owned and maintained by 

the Village of Port Jefferson. The first is located adjacent to Village parking lot between 

Barnum Avenue and north-south segment of Main Street (25A). This location contains 

several tennis courts, a playground and a brick path along the south side of Mill Creek 

that connects to a pedestrian bridge crossing that allows pedestrian travel from Village 

parking south of Mill Creek to the Village Hall to the north. The second, larger park area 

is located on the south side of Mill Creek on Caroline Street between Brook Road and 

Barnum Avenue. This location features athletic fields, wooded areas, and a worn trail 

along the upper banks of the creek. There are numerous other recreational opportunities 

within the Village including a number of park spaces and a Town of Brookhaven public 

marina along Port Jefferson Harbor to the north of the Mill Creek watershed. Beyond the 





parks, which are predominately developed for active recreational use, there are no large 

public preserved parcels within the Mill Creek watershed. Municipal Lands are shown 

on Map 4. 

2.2.8 NATURAL RESOURCES 

The natural resources section of this report includes descriptions of the wetland habitats, 

living resources, and endangered species within the watershed and the land use 

impairments, habitat losses, and invasive species that affect natural resources. 

2.2.8.1 Wetland Habitats 

Wetlands can be considered a transitional habitat that occurs between upland and 

aquatic environments where water is the primary controlling factor of the 

associated plant and wildlife. According to the National Wetlands Inventory 

(NWI), one segment of Mill Creek is classified as a wetland. The pond, located on 

the east side of Brook Road, is classified as belonging to the Palustrine System, 

having an unconsolidated bottom, and remaining semi-permanently flooded. 

Table 2-1 Creek Corridor Plant Species Inventory includes the wetland species 

identified. 

Freshwater Wetlands 

The Palustrine System consists of non-tidal wetlands dominated by trees, shrubs 

and persistent emergents, and all wetlands where salinity due to ocean-derived 

salts is below 0.5%. The system groups together vegetated wetlands traditionally 

called marshes, swamps, bogs, fens, or prairies; it also includes small, shallow, 

permanent or intermittent water bodies often referred to as ponds. Palustrine 

wetlands are typically situated along the shore of lakes, creek channels, or 

estuaries; on creek floodplains; or on slopes. 

Wetlands designated as having an unconsolidated bottom contain at least 25% 

cover of particles smaller than stones (less than 6-7 cm), and a vegetative cover 


Common Name 

Table 2-2 

Mill Creek Watershed Management Plant 

Creek Corridor Plant Species Inventory 

Botanical Name 

Plant Type 

Native, Non-native, 

Ornamental, Invasive 

A. platanoides Ornamental 

REACH 

1 2 3 4 

Crimson King 

X 

maple 

“Crimson King’ 

Silver maple A. saccharinum Native X X 

Norway maple Acer platanoides Non-native X X X 

Tree of Heaven Ailanthus altissima Non-native, invasive X 

Garlic mustard Alliaria petiolata Invasive X X X 

Speckled alder Alnus rugosa Native X 

Mugwort Artemesia vulgaris Invasive X X X 

Groundsel bush Baccharis halimifolia Native, wetland X 

Japanese barberry Berberis thunbergii Ornamental, Invasive X 

Black birch Betula nigra Native X 

Catalpa Catalpa sp. Ornamental X 

Asiatic 

Celastrus orbiculatus Non-native, invasive X X X 

bittersweet 

Spotted 

Chimaphila maculata Native X X 

wintergreen 

Chicory Cichorium intybus Invasive X 

Hedge bindweed Convolvulus sepium Non-native, Invasive X X 

Dogwood Cornus sp. Native/Non-native sp. X 

Crown vetch Coronilla varia Non-native, invasive X 

Sedge Cyperus sp. Nativ/non-native sp., 

some invasive 

American beech Fagus grandifolia Native, Ornamental X 

Ground ivy Glechoma hederacea Invasive X X X 

English ivy Hedera helix Ornamental, Invasive X 

American holly Ilex opaca Native, Ornamental X 

Orange 

Impatiens capensis Native, wetland X 

jewelweed 

Black walnut Juglans nigra Native X 

Soft rush Juncus effusus Native X X 

Common duck Lemna sp. Native, wetland X 

weed 

Japanese Lonicera japonica Ornamental, Invasive X 

honeysuckle 

Purple loosestrife Lythrum salicaria Nonnative, Invasive X X 

Ornamental grass Miscanthus Sp Ornamental X 

White mulberry Morus alba Invasive X 

Virginia creeper 

Parthenocissus 

quinquefolia 

Native X X X 

X

Common reed, Phragmites australis Non-native, Invasive X X X 

phragmites 

Pokeweed Phytolacca americana X X 

Japanese Polygonum cuspidatum Invasive X X X 

knotweed 

Smartweed Polygonum sp. Invasive X X X 

Black cherry Prunus serotina Native X X 

Cherry Prunus sp. Native/non-native sp X X 

Scarlet oak Q. coccinea Native X 

Red oak Q. rubra Native X 

Black oak Quercus velutina Native X 

Smooth sumac Rhus glabra Native X 

Black locust Robinia pseudoacacia Non-native, Invasive X X 

Multiflora rose Rosa multifora Non-native, Invasive X X X 

Highbush Rubus allegheniensis Native X 

blackberry 

Wineberry Rubus phoenicolasius Invasive X 

Curly dock Rumex crispus Invasive X 

Bittersweet Solarium dulcamara Invasive X X X 

nightshade 

Willow Salix sp. Native/non-native sp., 

X 

some invasives 

Horse nettle Solanum carolinense X 

Skunk cabbage Symplocarpus foetidus Native, wetland X 

Poison ivy Toxicodendron Native X X X 

radicans 

Red clover Trifolium pratense Non-native, invasive X 

Broad-leaved Typha latifolia Native, wetland X X 

cattail 

Viburnum Viburnum sp. Native X 

Myrtle Vinca minor Ornamental, invasive X 

Grape Vitis sp. Native/non-native sp X X 

Plant Type Information Sources: 

A Field Guide to Long Island’s Freshwater Wetlands 

Native Species Planting Guide for New York City and Vicinity 

Native Alternatives to Invasive Plants




less than 30%. A semi-permanently flooded wetland is designated as having 

surface waters that persist throughout the growing season, in most years; when 

surface water is absent, the water table is usually at or near the land’s surface. 

The NYSDEC also delineated freshwater wetlands. In accordance with Article 23 

of the New York State Environmental Conservation Law (NYS, 1075), freshwater 

wetlands are defined as those lands and waters that meet the following criteria: 

• Contain marshes, swamps, bogs, wetland trees, wetland shrubs, emergent 

vegetation, free-floating vegetation, rooted floating vegetation, or 

submergent vegetation. 

• Are substantially enclosed by aquatic or semi-aquatic vegetation. 

• Are shown on the NYS Freshwater Wetlands Maps. 

Freshwater wetlands associated with Mill Creek are located on Brook Road, on 

both sides of the roadway (including Mill Pond, located on the east side of the 

roadway discussed earlier in this section). An area of NYSDEC-designated 

freshwater wetland on the west side of Brook Road has been filled and a residence 

now occupies the site. Freshwater seeps from this site are collected into drainage 

structures and piped through a catch basin system into the creek on the east side of 

Brook Road. These wetlands have a NYSDEC designation of PJ-3. The 

NYSDEC wetland is noted on the in Habitat Assessment on Map 7. 

Tidal Wetlands 

Tidal wetlands are ecologically important environmentally productive and support 

a diversity of species. Tidal wetlands provide a number of valuable stormwater 

mitigation functions such as flood control, shore protection, sediment reduction, 

and pollution mitigation. 

The tidal wetlands were inventoried and mapped by the NYSDEC in 1979. While 

Mill Creek does not appear on NYSDEC tidal wetlands maps, the eastern segment 





of the creek has been observed to be tidal in nature, with an approximate six-foot 

tidal range. A tide gate located at the creek outfall to the harbor can affect the tidal 

range within the creek. The following categories of tidal wetlands are found 

within the eastern segment of Mill Creek: 

• Littoral Zone (LZ): Underwater lands and open water up to a maximum 

depth of six feet at mean low water. 

• Coastal Shoals, Bars, and Mudflats (SM): Areas that are exposed at low 

tide or covered to a maximum depth of one foot and generally not 

vegetated by smooth cordgrass (Spartina alterniflora). 

2.2.8.2 Significant Coastal Fish and Wildlife Habitats 

Mill Creek is not within a New York State designated Significant Coastal Fish and 

Wildlife Habitat (SCFWH). However, Port Jefferson Harbor, of which Mill Creek 

is a major tributary, is designated as a SCFWH. In addition, the majority of the 

creek is located within the landward coastal boundary as shown on the New York 

State Coastal Atlas, as determined by the NYSDOS Division of Coastal 

Resources. As a major tributary, Mill Creek has the potential to influence water 

quality in the harbor. 

Port Jefferson Harbor is recognized as a protected coastal bay that is important to 

fish and wildlife throughout the year. The harbor provides an important feeding 

habitat for shorebirds such as piping plover, least tern and common tern. It is also 

a valuable waterfowl wintering area, with aerial surveys of waterfowl abundance 

for the period of 1986-1996 depicting a significant number of birds from a 

multitude of species in the bay each year. Waterfowl species identified as 

inhabiting the area include: American black duck; mallard; lesser or greater scaup; 

Canada goose; canvasback; common goldeneye; bufflehead; long-tailed duck; 

American wigeon; merganser species; and scoter. The use of the harbor by 

waterfowl during the winter months can be affected in part by the extent of ice 

cover within the area each year. Significant concentrations of waterfowl have also 





been documented during the spring and fall migration periods. The following bird 

species were field identified during evaluation of the creek corridor: northern 

cardinal (male and female), gray catbird, red-winged blackbird, mallard duck 

(female), and black-crowned night heron (adult and juvenile). 

Port Jefferson Harbor is also recognized as a productive area for marine finfish, 

shellfish, and crustaceans. While the southern section of the harbor closest to Mill 

Creek is an uncertified shellfishing area, approximately 27% of the remaining area 

of the harbor is designated as certified waters for seasonal or conditional shellfish 

harvesting for recreational or commercial purposes. Harvested species of shellfish 

include American oyster and hard clam. The harbor shellfishing areas available 

for review at www.dec.ny.gov/outdoor/40540.html. 

The harbor supports a moderate recreational fin fishery of county-level 

significance from late winter through fall. Finfish species found in the harbor 

include scup, bluefish, Atlantic silversides, Atlantic menhaden, northern puffer, 

striped bass, blackfish, and winter flounder. 

Port Jefferson Harbor and adjacent portions of the Long Island Sound have been 

identified as being a potentially important habitat for juvenile Atlantic ridley 

turtles, especially during the late summer and fall. Atlantic ridley turtles are 

recognized as a species that carries an endangered status on the state and federal 

level, with the distinction of being the smallest and most endangered member of 

the sea turtle family. 

No fish shellfish or crustaceans were identified in the creek during the field 

assessment for this Plan. Due to the narrow vegetated corridor adjacent to the 

creek and the developed nature of the watershed, there are few mammal species 

within the area. Eastern gray squirrel was observed and raccoon tracks were 

identified. 





2.2.8.3 Rare, Threatened and Endangered Species (RTE) 

According to data from the NYSDEC Environmental Resource Mapper, there are 

no occurrences of rare, threatened or endangered species found within the 

watershed. 

2.2.8.4 Habitat Loss 

Habitat loss can be attributed to a number of conditions. Development of the area 

included filling of wetlands to increase buildable land, culverting of a creek 

tributary, hardening of the shoreline through bulkhead and revetment construction 

to reduce erosion and stabilize lands, and increasing the amount of impervious 

surfaces throughout the watershed, All of these factors contribute to habitat loss. 

Development and the associated population growth have strained the stormwater 

infrastructure and local natural resources. Local groundwater supplies have been 

contaminated by development and industrial activities. Groundwater levels 

decrease with increased water demand and affect stream flow, and untreated 

stormwater is released directly into surface waters. Filling along the shoreline for 

construction purposes also reduced the wetland habitat. 

2.2.8.5 Invasive Species 

Invasive plants may include exotics, or genetic variants of species otherwise 

considered native that have developed adaptive strategies to compete successfully 

with local native populations for limited habitat resources. Exotics include any 

non-native species that may have been released directly into the watershed area or 

have expanded populations in the surrounding area that spread over time into the 

watershed. Invasive species are of concern due to their potential to displace 

indigenous species and threaten native local populations. 

Several species identified by the Invasive Plant Council of New York (IPC) were 

observed along the Mill Creek corridor. These species include: common reed 

(Phragmites australis); garlic mustard (Alliaria petiolata); ground ivy (Glechoma 





hederacea); Japanese knotweed (Polygonum cuspidatum); multiflora rose (Rosa 

multiflora); Norway maple (Acer platanoides); ornamental sweet cherry (Prunus 

avium); and tree-of-heaven (Ailanthus altissima). Phragmites is the dominant 

invasive species along Mill Creek. Extensive areas of the creek corridor have been 

infested with the species, including the bulkheaded section adjacent to West 

Broadway (25A); both sides of Barnum Avenue; and the northern section of the 

pond adjacent to Brook Road. As the watershed is densely developed, little native 

vegetation remains outside of the parcels that have not been developed due to 

cluster development preservation or steepness of slopes. In the remainder of the 

watershed, the vegetation is likely to consist mainly of ornamental species 

associated with residential and commercial property development. Table 2-1 

identifies all invasive species found along the creek corridor. 

2.2.8.6 Plant Species Inventory 

During the field assessment, an inventory of existing vegetative species located 

along the creek corridor was conducted. The inventory of species identified is 

included on Table 2-1 Creek Corridor Plant Species Inventory. The table includes 

the common name and botanical name of each species and the plant type 

including: 

• Native – a species expected to be found occurring naturally on undisturbed 

portions of Long island including wetlands and woodlands 

• Non-native – a species that does not occur naturally but is reseeding or 

propagating itself in the area 

• Ornamental – a plant which has been specifically planted and typically 

occur along segments adjacent to developed properties 

• Wetland – species found in wetland areas 

• Invasive –species that have been able to propagate quickly, outcompete and 

often displace native species if not controlled. 





Table 2-1 also includes columns that identify which reach or reaches a species was 

located in which is related to the reach habitat assessment discussions included in 

Section 3.1.3. 

2.3 WATER QUALITY CHARACTERIZATION 

The primary objective of most water quality monitoring programs in New York State is 

to prevent human health impacts from exposure to pathogenic bacteria and viruses (e.g., 

the hepatitis and Norwalk viruses, and Salmonella bacteria). Pathogen exposure can 

result from either direct contact with contaminated water or the consumption of tainted 

shellfish. Water quality testing for these pathogens typically entails testing for the 

presence of coliform bacteria, which are generally non-pathogenic, but are relatively easy 

to measure. Because coliform bacteria co-exist with the pathogens of primary concern, 

as mentioned above, the coliform bacteria serve as an indicator of the possible presence 

of pathogens. 

Fluctuations in stream and stormwater system discharge occur as a result of a seasonal 

and yearly fluctuations in precipitation, seasonal changes in groundwater levels, and 

increased urbanization. Removal of vegetation, compaction of soils, and construction of 

impervious surfaces are examples of human activities that can significantly impact 

normal hydrologic processes. These activities can cause waters to become stagnant or 

turbulent; decrease soil permeability; cause erosion and soil deposition; improve or 

aggravate flooding conditions; increase or decrease water and pollutant residence times; 

and affect natural water quality functions, such as the settling of soil particles. 

Waterbodies that are classified with a best usage that allows greater human contact (e.g. 

water supply for drinking, food processing, contact recreation, fish propagation and 

shellfishing) must meet a higher standard than waters that are classified for lesser human 

contact, such as fish survival. 

The groundwater within the western section of the Mill Creek watershed and the surface 

waters within Mill Creek have been identified by the USEPA as being impacted by a 





hazardous waste plume that is emanating from a site formerly occupied by Lawrence 

Aviation Industries and migrating north toward Port Jefferson Harbor. The site has been 

designated a federal superfund site and the USEPA is currently undertaking remedial 

actions as discussed below in Section 2.3.4. 

2.3.1 WATER QUALITY CLASSIFICATIONS AND DESIGNATED USES 

The southern section of Port Jefferson Harbor and its tributaries, including Mill Creek, 

are included within the Priority Waterbodies List (PWL) for the Long Island Sound 

Basin. For the purposes of the PWL, Port Jefferson Harbor south is separated from the 

northern portion of the Harbor by a line extending from the Long Island Power Authority 

bulkhead on the west side of the harbor to Beach Road on the east. A priority waterbody 

is a waterbody determined by NYSDEC staff, with public input, to have their uses 

precluded, impaired, stressed, or threatened. See Table 2-3: Port Jefferson Harbor South 

and Tributaries Use Impairments for the identified impacts to the waterbodies. The 

causes of this impairment are identified as priority organics (PCBs), pathogens, dissolved 

oxygen levels, nutrients (nitrogen levels), and oil and grease caused by sources including 

storm sewers and urban runoff. 

The southern segment of the harbor is classified by the NYSDEC as Class SC waters, 

which indicates a best usage is fishing. New York Codes, Rules and Regulations 

(NYCRR) Part 701: Classifications of Surface Waters and Groundwaters defines Class 

SC waters as suitable for fish, shellfish, and wildlife propagation and survival, with water 

quality suitable for primary and secondary contact recreation, although other factors may 

limit the use for these purposes. While this classification identifies “best usages,” the 

actual usage of the waters is dependent on the impairments of the quality of the waters. 

The numerous parameters that commonly characterize water quality include taste, color, 

suspended solids, oils, refuse, thermal discharges, phosphorus, nitrogen, and dissolved 

solids. Year-round shellfishing restrictions apply to the southern segment of the harbor, 

due to pathogens from surrounding stormwater and urban runoff, recreational boating and 

marina use. 





2.3.2 RESOURCE ISSUES AND IMPAIRMENTS 

Impairments to waterbodies are often described in terms of their effects on the fish and 

game population of the waterbodies. The New York State Department of Health 

(NYSDOH) issues health advisories concerning the consumption of sport fish caught in 

New York State waters. No specific advisories for Port Jefferson Harbor South and its 

tributaries were included in the 2009-2010 Health Advisories: Chemicals in Sportfish and 

Game released by the NYSDOH. However, this document does include general 

advisories issued for all waters of the Long Island Sound. The contaminants of concern 

are PCBs in fish, and cadmium, dioxin and PCBs in crabs and lobsters. The general 

advisories include the following: 

• Women of childbearing age and children under the age of 15 should: 

o Eat no weakfish greater than 25 inches. 

o Eat no more than one meal per month of American eel, striped bass, 

bluefish greater than 20 inches, and smaller weakfish. 

o Eat no more than one meal per week of smaller bluefish 

• Women of childbearing age and adult males should: 

o Eat no more than one meal per month of weakfish greater than 25 inches. 

o Eat no more than one meal per week of American eel, bluefish and striped 

bass and smaller weakfish. 

• The population in general should not consume the hepatopancreas, the soft green 

substance also referred to as tomalley and liver, found in crabs and lobsters. The 

cooking liquid should also be discarded as contaminants, such as cadmium, dioxin 

and PCBs, are transferred during the cooking process. 

Table 2-3 presents the use impairment, pollution sources, and types of pollution within 

the watershed. 





Table 2-3 

Port Jefferson Harbor South and Tributaries Use Impairments 

Uses Impacted Pollution Type Pollution Source 

• Fish Consumption 

• Aquatic Life 

• Recreation 

• Priority Organics 

(PCBs/migratory fish) 

• D.O./Oxygen demand 

• Nutrients (nitrogen) 

• Pathogens 

• Oil and grease 

• Sewage Treatment Plants 

• Boat pollution 

• Storm sewers 

• Urban runoff 

• Migratory fish species 

• Failing on-site septic system 

Bold items indicate MAJOR use impacts/pollutants/sources 

Source: NYSDEC Atlantic Ocean/Long Island Sound Waterbody Inventory and Priority 

Waterbody List - 2002 

2.3.3 PRIOR WATER QUALITY STUDIES AND MONITORING RESULTS 

The following are summaries of prior studies, reports, and water monitoring data that are 

related to Port Jefferson Harbor and its tributaries, including Mill Creek. 

Long Island Sound Study 

The Long Island Sound Study (LISS), a cooperative effort between the USEPA, New 

York and Connecticut, works to protect and improve the health of the Long Island Sound. 

It has identified pollutant loading to waterbodies that contribute to the Long Island 

Sound, such as Port Jefferson Harbor and its tributaries, as a concern for the overall 

health of the Long Island Sound. The LISS planning effort includes the 1994 Long 

Island Comprehensive Conservation and Management Plan (CCMP) and the 2003 LIS 

Agreement. The work characterized several high priority issues around the Sound 

including several to which Port Jefferson Harbor, its tributaries and their respective 

watersheds may contribute. These issues include pathogen contamination, floatable 

debris, living resources and habitat management, and land use and development. The 

CCMP identified specific commitments and recommendations for actions to improve 

water quality, protect resources, and monitor progress. 





Long Island Sound Coastal Management Program (LIS CMP) 

The LIS CMP defines what constitutes a balance between appropriate and needed 

economic development and protection and restoration of the natural and living resources 

of the Sound. It complements the LIS CCMP, which focuses on water quality in the deep 

waters of the Sound, by addressing the upland watershed and harbor and nearshore 

waters. This Program is based on public consensus and close consultation with the state 

agencies whose programs and activities affect the coast and integrates the capabilities of 

state and local government into an enforceable program for the Sound. The LIS CMP 

includes four components to 1) enhance community character, 2) reclaim and achieve 

sustainable use of natural resources, 3) improve visual and physical access to the 

waterfront and recreational opportunities, and 4) reinvigorate the Sounds’ working 

waterfronts. The analysis completed for the LIS CMP led to the development of a set of 

coastal policies that provide standards for region-specific planning, regulatory issues, and 

community needs. The policies are the basis for federal and state consistency 

determinations for activities affecting the Long Island Sound coastal area. 

Water Quality Trends for Port Jefferson Harbor 

A report presented on the Village of Port Jefferson’s website contains data compiled from 

NYSDEC and SCDHS Office of Ecology water quality monitoring sites. The report 

utilized four monitoring sites to analyze data for three parameters of water quality: fecal 

coliform, total nitrogen, and total phosphorous. Four locations within the Port Jefferson 

Harbor were selected for inclusion in the report in an effort to identify water quality 

trends, one of these locations being the outfall of Mill Creek into the southern portion of 

the harbor. A study period of December 1998 through November 2005 was identified for 

inclusion in the report. 

The report found that fecal coliform levels were higher in the southern portion of the 

harbor. The average fecal coliform level at the monitoring station at the Mill Creek 

outfall was 269 MPN/100 ml as opposed to a 10 MPN/100 ml count at the monitoring 





station at the northern part of the harbor. Data from the study period at all four locations 

included in the report demonstrated that the fecal coliform trends were decreasing. 

Total nitrogen levels were found to be higher at the southern end of the harbor. The 

average total nitrogen level over the course of the study period at the monitoring station 

located at the Mill Creek outfall was measured at 0.56 mg/l. Average nitrogen levels 

within the same period at the northern part of the harbor were measured at 0.24 mg/l. 

The report determined that the total nitrogen trend at all four stations was increasing 

slightly. 

The report found that total phosphorous was fairly consistent at all four monitoring 

stations. Within the study period, the average total phosphorous level at the Mill Creek 

outfall was 0.066 mg/l, while the monitoring station at the northern part of the harbor 

recorded an average total phosphorous level of 0.061 mg/l. Total phosphorous levels 

over the course of the study period were shown to be slightly decreasing. 

Shellfish Pathogen Total Maximum Daily Load (TMDL) 

The New York Shellfish Pathogen TMDL was completed in September 2007 and 

established a required Fecal Coliform load reduction level of 94% in Port Jefferson 

Harbor North where the waters are classified for shellfishing. As Mill Creek is a main 

flow contributor to the harbor, the creek flow can affect the water quality in the harbor 

and may be contributing to the high Fecal Coliform levels. 

2.3.4 LAWRENCE AVIATION INDUSTRIES SUPERFUND SITE REMEDIATION 

The Lawrence Aviation Industries (LAI) site is located southwest of and outside of the 

Mill Creek watershed area along Sheep Pasture Road. A hazardous waste plume has 

been identified as emanating from the site and migrating north into the groundwater 

beneath the Mill Creek watershed. The plume is shown on a USEPA figure included in 

Appendix B. The following three paragraphs regarding the contamination and 

remediation effort have been summarized from the USEPA document entitled “Lawrence 





Aviation Industries Superfund Site – Superfund Proposal Plan (LAI Proposal Plan)” and 

Village discussions with the USEPA project representatives as follows: 

Surface water samples collected from the pond and creek show that the 

waterbodies have been contaminated with VOCs, including TCE, PCE, 

and 1,2-DCE at concentrations exceeding delineation criteria. The VOCs 

in the surface waters at the LAI site are relayed to the groundwater and 

discharged to surface waters in the Mill Creek and Mill Pond area. The 

United States Army Corps of Engineers (USACOE) has designated the 

LAI site as a federal superfund site and has been conducting investigations 

and developing remediation plans for the property and the contaminated 

groundwater. 

Due to the plume, the remediation efforts have extended to Mill Creek 

where groundwater impacted by the plume is emanating from groundwater 

into Mill Creek and Mill Pond and subsequently the Port Jefferson Harbor. 

The USEPA has been progressing clean-up efforts at the LAI site and is in 

the process of developing remedial plans for the groundwater plume. The 

USEPA maintains warning signs along the pond shoreline indicating that 

the water is contaminated and should not be consumed and prolonged 

contact should be minimized. 

The groundwater remediation will include the construction of a 

groundwater extraction and treatment plant at the southwest corner of the 

Village Park located on Caroline Avenue between Barnum Avenue and 

Brook Road. The treatment plant will be near the northeast corner of the 

Brook Road and Caroline Street intersection. The plan proposes to extract 

and collect the contaminated groundwater, process it in the treatment plan 

and discharge the clean groundwater into Mill Creek where it will be 

carried to the harbor. The sediments in Mill Creek and Mill Pond were 





also sampled and found to be contaminated with elevated levels of TCE. 

The LAI Proposal Plan states that the VOCs in the sediments are likely 

related to the discharge of the VOC-contaminated groundwater to the pond 

and creek. After groundwater remediation, site-related VOC 

contamination will not persist in the sediments and no remedial action will 

be required. 

The proposed project summarized above is a long-term project that is estimated by the 

USEPA to last approximately 30 years. Village representatives have expressed concern 

with the ability of Mill Creek to accommodate the flow from the remediation discharge in 

conjunction with the storm flows from major storm events. Several areas of Village 

concern have been presented to the USEPA including the minimal creek cross-section 

and depth at outfall from the pond, groundwater seeps located on the northwest side of 

the pond and Brook Road, and potential blockages reducing flow capacity at the Barnum 

Avenue culvert. According to Village representatives, the USEPA will be addressing 

these concerns during the facility design phase. All recommendations of this WMP will 

need to be coordinated with the efforts to remediate the hazardous waste spill and may 

require a delay in implementation due to the remediation efforts. 





3.0 EXISTING DRAINAGE AND HABITAT 

CONDITIONS ASSESSMENT 

Stormwater drainage systems installed to collect runoff from the network of roads and 

extensive development have altered the drainage patterns within the watershed and the 

Creek. Mapping of the drainage structures, along with the piping systems, 

interconnections and structure conditions, provided data that was necessary to identify 

watershed–wide recommendations and site-specific locations for improvement projects. 

Outfalls are shown on Map 5 and all drainage structures located within the Mill Creek 

watershed can be found on Maps 6 and 6A-D. 

The drainage and habitat assessment describes the following aspects of the watershed and 

creek corridor: 

• Stormwater drainage infrastructure data collection and mapping from existing 

information and field assessments. 

• Reach drainage system and habitat assessments 

• Existing municipal projects to reduce pollutant loads 

• Inter-municipal jurisdiction and agreements through review of municipal 

boundaries and responsible authorities. 

• Land and water use regulations and laws from local codes and regulations. 

• Pollutant load analysis based on identified pollutants of concern, impervious 

cover and runoff potential. 





3.1 FIELD DATA COLLECTION AND REACH ASSESSMENT 

3.1.1 EXISTING INFORMATION 

Under the requirements of the State Pollution Discharge Elimination System Municipal 

Separate Storm Sewer Systems Phase II (SPDES MS4 Phase II) program, the Village 

mapped the locations of their outfalls and drainage structures. This data served as the 

base for further analysis and assessment of the drainage systems, including mapping of 

connective piping and conditions of structures, such as sediment levels in structures. 

3.1.2 INFRASTRUCTURE SURVEY AND MAPPING METHODOLOGY 

The method utilized to collect drainage data in the field was GPS field collection. 

Structures were field located by visual reconnaissance. Upon locating an outfall or 

structure, the field team used a mobile Geographic Information System (GIS) tracking 

device with integrated geographical positioning system (GPS) (Trimble Nomad with 

Windows CE and ERSI ArcPad) to collect the GPS position, structure information, and 

photographs for each asset. The GPS-collected data was downloaded by GIS personnel 

to ArcGIS 9.3, and assigned structure identification numbers. As required by the SPDES 

MS4s program, all locations where surface flow enters the waterbodies from outfall 

piping, swales or concentrated overland flow were designated as outfalls. The collected 

information was provided to the Village for review and inclusion in their SPDES MS4 

and Highway Department data files at the completion of this project. 

The field personnel assessed each field-identified structure. Accessible structures were 

visually inspected to determine if upgradient structures were contributing surface runoff 

to Mill Creek. Inspection of accessible structures included an assessment of pipe size, 

structure connectivity, and direction of flow. In some instances, if a structure was not 

accessible due to a field condition, assumptions as to condition were made. The 

condition of the interior of each accessible structure was noted, including the existence of 

sediments or standing water in the structure. Locations where runoff flows to surface 





waters or wetlands were also identified. All locations were mapped and data collected 

using the hand-held GPS device and the information downloaded to the GIS program 

upon return to the office. The findings are discussed below. 

During field inspection, 28 outfalls were identified. Of the 28 outfalls, 19 are structural 

outfalls such as pipes, headwalls, or road grates. There are five additional locations 

where surface flow from roads and paved areas enters the surface waters via open 

channels or swales, and four locations where additional investigation is required to 

determine the outfall method. All outfall locations and identified drainage structures 

were assigned identification numbers. The outfalls are shown on Map 5. 

Each drainage structure has an assigned identification number as described above. 

Inspected drainage structures, including outfalls, catch and leaching basins, and 

manholes, are listed by these identification numbers within their respective tables (Tables 

A-1 through A-4 located within Appendix A of this Plan) and depicted on Maps 6 and 

detailed Maps 6A through 6D. Tables A1-A4 were developed from the GIS data files. 

During the field assessment, data about each structure was entered into the GPS unit and 

downloaded to GIS files. The GIS data files contain additional data on bank location, 

odor, submerged flow, color, turbidity, floatables, access, and file names for photographs 

of each structure. Printed copies of the GIS data files are included for information 

purposes as Appendix A to this Plan and were provided to the Village as document files 

for incorporation into GIS databases. 

3.1.3 REACH DRAINAGE AND HABITAT ASSESSMENTS 

In order to aid in the assessment of impairments associated with the watershed, this 

section divides the creek watershed by reaches. The reaches were defined to provide 

general delineation of areas to target recommendations. The reaches are shown on Map 1 

and have been defined as follows: 

• Reach 1 – Creek outfall at Port Jefferson Harbor to Barnum Avenue 





• Reach 2 – West side of Barnum Avenue to Brook Road 

• Reach 3 – West side of Brook Road to north side of Longfellow Lane 

• Reach 4 – Freshwater seeps in the northeast and northwest corners of a parking lot 

at the corner of West Broadway (Rte. 25A) and Brook Road that drain via a 

piping system into Reach 2 

The eastern reach, Reach 1, is tidal and extends from Barnum Avenue to the piped 

culvert where Mill Creek outfalls to Port Jefferson Harbor. Reach 1 includes two 

bulkheaded sections. Reach 1 begins at the harbor outfall and is culverted to the south 

side of Route 25A. The first daylighted section is from Route 25A south to the creek’s 

turn to the west, and the second, in the rear of the Village Hall, where a pedestrian bridge 

crosses over the creek connecting Village Hall with the parking lots to the south. Land 

use in Reach 1 is predominantly commercial to the north and east, with Village parkland 

and parking lots to the south. Reach 2 is freshwater and extends west from Barnum 

Avenue to Brook Road. Mill Pond is located at the western limit of Reach 2. The land 

use surrounding Reach 2 is primarily commercial to the north, while the creek is bordered 

by athletic fields and parkland to the south. In Reach 3, the creek is narrow flowing 

through a natural channel in the front of several residential properties and into a small 

freshwater wetland. The wetland connects to the pond at the western end of Reach 2 

through a piped culvert under Brook Road. Reach 4 includes natural seeps that are 

daylighted through stone channels into a drainage system that outfalls into Mill Creek 

within Reach 2. 

The following sections contain an assessment of the drainage infrastructure and habitat 

conditions found within each reach. The habitat assessment for the creek area is detailed 

on Map 7. 





3.1.3.1 Reach 1 

Drainage Assessment 

This tidally influenced creek segment extends from the harbor outfall to Barnum 

Avenue. The first section of the creek is completely culverted from the outfall to 

the south side of Route 25A. A tide gate at the outfall controls flow from the 

harbor into the creek, but is reported to not be functioning properly and requires 

additional analysis. There are two existing sections of bulkhead along his reach: a 

45-foot wide bottom section immediately south of the culvert at Route 25A; and a 

second 20-foot wide bottom section at the approximate middle of Reach 1, where a 

pedestrian bridge crosses over the creek connecting Village Hall with the parking 

lots to the south. The banks for the remainder of this reach are natural, with an 

approximate bottom section of 20 feet. Land use in Reach 1 includes commercial 

properties to the north and east of the creek, and community use, including Village 

parking lots, tennis courts, and the Village Highway Department Building, to the 

south. 

In Reach 1, storm water runoff enters the creek via nine piped outfalls, in addition 

to one catch basin that outfalls directly to this segment of the creek from Barnum 

Avenue. 

A potential illicit discharge was identified within this reach. The first is a 4” PVC 

pipe extending from within a commercial building (restaurant) to the adjacent 

asphalt. Flow from that pipe may either surface flow over the bulkhead or into the 

pavement drainage system surrounding the building that discharges to the creek 

via Outfall # 27. The flow from this pipe should be tested to ensure that it is not 

discharge from the operations of the restaurant. It should be noted that due to the 

commercial nature and high density of development in the Port Jefferson 

downtown many of the commercial buildings have roof drainage that is piped into 

the drainage systems that outfall to the creek or harbor. 





The piped outfalls in this reach include: roadway drainage from catch basins 

located at the intersection of Main Street (25A) with East/West Broadway and the 

adjacent Village parking lots east of the creek; drainage from Village parking lots 

south of the creek, located between Main Street (25A) and Barnum Avenue; two 

piped outfalls from catch basins north of the creek located within the Village Hall 

parking lot; roadway drainage from catch basins located on the east side of 

Barnum Avenue north of Caroline Street; and a 6’ x 3’ concrete box culvert. The 

box culvert receives drainage contributions from several systems located on Main 

Street (25A) from East Main Street to North Country Road, including any basins 

on intersecting side streets, as well as catch basins located on the southern end of 

Barnum Avenue and the entrance roadway to the campus of Earl L. Vandermeulen 

High School and Port Jefferson Middle School. The culvert begins on Barnum 

Avenue at the intersection with Main Street (25A) and continues north where it 

outfalls to the creek in the bulkheaded section of Reach 1 adjacent to the 

pedestrian bridge. 

This reach also has one location that was designated as an outfall where overland 

flow caused significant erosion to the banks of the creek, creating an earthen 

channel. This outfall is located south of the creek in a wooded area adjacent to the 

tennis courts discussed earlier in this section. 

This reach has an approximate length of 680 feet. 

Habitat Assessment 

The initial segment of this reach is culverted. At the discharge to the harbor a tide 

gate exists that is designed to prevent backflow into the creek. Village 

representatives are unsure of the operation of the gate as the tidal range observed 

south of the culvert in the creek does not appear to be modified. The segment of 

the creek south of the culvert is bulkheaded with paved surfaces on both sides that 





flow toward either the creek or a drainage system that discharges into the creek. 

Sediment deposits have accumulated in the 20’-wide channel and phragmites and 

some additional sparse wetland vegetation have begun to establish on the sediment 

buildup. As the creek turns to the west, the bulkhead ends and the banks become 

steep earth, having been filled when the properties north and south of the creek 

were developed. The banks have eroded along the bottom section likely due to the 

heavy flows during large storm events when drainage from the entire watershed 

flows though this segment of the reach. An outfall (OT-35) on the south side of 

the creek has eroded a section of the earth bank and undermined the bulkhead. 

Vegetation along this section consists of Norway maple and invasive species that 

prevent other species from establishing. The Norway maple roots help to stabilize 

the steep bank but the species prevents under story vegetation from establishing 

creating barren slopes that will eventually become unstable. Table 2-1 identifies 

the plant species found along the creek corridor by reach and includes several 

ornamental species that were planted along the creek corridor as part of the upland 

development. 

Further west a segment of bulkhead exists where the culvert outfalls. Sediment 

deposits in the creek channel have been vegetated with phragmites and ornamental 

grass species. The slopes on top of the bulkhead are unvegetated and mulched to 

the north and planted with ornamental species to the south. The next segment of 

the reach again has steeply sloped banks with numerous Norway maples, silver 

maple, and tree-of-heaven. Adult and juvenile black-crowned night heron were 

observed roosting in the trees in this segment. The western most segment of this 

reach is infested with a dense stand of phragmites. The phragmites may be 

preventing sediments from flowing further east in the channel and building up 

beneath Barnum Road causing a partial blockage and flooding issues in this 

location. The actual cause of the blockage requires further investigation. 





3.1.3.2 Reach 2 


This freshwater segment of the creek extends west from Barnum Avenue to Brook 

Road. The creek is approximately 20 feet in width at the eastern end of the reach 

at Barnum Avenue, narrowing to 6 feet as it turns between property boundaries, 

widening again at the western end of the reach at Brook Road to form a pond 

approximately 75 feet wide. Land use bordering the creek in this reach is 

commercial to the north with parkland, including athletic fields and wooded areas, 

to the south. 

There are five piped outfalls within this segment of the creek. These outfalls 

include: two pipes, one on the north side of the creek and one on the south, 

containing roadway drainage from the west side of Barnum Avenue; a 4” 

corrugated polyethylene pipe on the north side of the creek that appears to drain 

from a building on the west side of Barnum Avenue; a concrete pipe connecting 

the pond in Reach 2 with a wetland area in Reach 3; and a piped outfall that 

contains roadway drainage from Brook Road. The roadway drainage located on 

Brook Road includes freshwater contributions from natural seeps on the west side 

of the roadway, as well as from Reaches 4 and 5 which outfall into two catch 

basins located at the end of stone channels that connect via piping to structures 

located within the roadway. 

This reach has three locations designated as outfalls where significant overland 

flow caused heavy erosion to the southern banks of the creek, creating an earthen 

channel. These outfalls are located in a wooded area between the creek and 

athletic fields to the south. 







Reach 2 extends from Barnum Avenue west to Brook Road. The first segment of 

this reach extends west (flows east) through a steeply banked channel. The creek 

was channelized by filling of the adjacent properties during development. The 

creek channel is shaded by the trees. Vegetation identified in this segment is listed 

in Table 2-1. As the reach nears Brook Road the creek channel changes direction 

extending south. At this change in direction is a small wetland area. This wetland 

is located on private property that is littered with trash and debris. The site 

condition makes flow assessment difficult, but it appears that flow from Reach 4 

discussed below outfalls into this wetland. The north-flowing creek channel is 

very narrow (less than 3 feet) and shallow (less that 12”) and is adjacent to a 

gravel- and grass-surfaced open area. This channel is flowing from Mill Pond 

located on Village property along Brook Road. Mill Pond is 0.20-acre surface 

waterbody. Vegetation surrounding the pond includes phragmites along the north 

and western shorelines. The eastern and southern shores are tree lined with a 

variety of tree species included in Table 2-1. 

3.1.3.3 Reach 3 


This freshwater segment of the creek extends south from a wetland area at the 

northern section of the reach and follows along the right of way on the west side of 

Brook Road ending approximately at the intersection of Brook Road and 

Longfellow Lane. The creek ranges in width from 3' to 5' for the majority of this 

reach, widening to approximately 40' in the wetlands at the northern end of the 

reach. Land use on the west side of the roadway where the creek is located is 

single-family residential; athletic fields of Earl L. Vandermeulen High School and 

Port Jefferson Middle School are located on the opposite side of the roadway. 

There are two piped outfalls within this segment of the creek in the form of 

corrugated polyethylene pipes installed under several residential driveways to 





allow flow to continue to the wetlands at the northern end of this reach. There is 

also a concrete sluiceway located within this reach that connects what was 

observed as a dry, sand bed to the wetlands in the northern section of this reach. 

Due to the significant amount of vegetation in this area, the sluiceway was not 

accessible and therefore not included in the GPS data points discussed in this 

report. 



A culvert under Brook Road connects Reach 3 to Reach 2, allowing the wetland on 

the west side of Brook Road to flow into Mill Pond. A channel extends south to 

Longfellow Lane. The wetlands in this reach include a few wetland vegetation 

species such as groundsel bush, orange jewelweed, skunk cabbage and broadleaved 

cattail. Vegetation along this segment also includes many invasive species 

including bitter nightshade, multiflora rose, phragmites and purple loosestrife. The 

complete list of plant species identifies in this reach is included in Table 2-1. The 

channel includes flow from a vernal seep that is dormant at some times during the 

year. Flow from additional seeps feed the wetlands via the channel. There is a 

heavy sediment buildup south of the concrete flow structure. 

3.1.3.4 Reach 4 


This freshwater segment of the creek is located in the parking lot behind several 

residential buildings on the corner of Brook Road and West Broadway (25A). 

There are natural groundwater seep outfalls within this reach (one in the 

northwestern corner and a second in the northeastern corner of the property) that 

discharge into stone-lined channels that direct the flow around the perimeter of the 

parking lot and into catch basins that are connected via piping to a catch basin 

drainage system (CB192-CB198, CB234-CB240) located along Brook Road that 





outfalls into Mill Creek within Reach 2. Additional outfalls located near the seeps 

are suspected to direct roof runoff to the channel. One catch basin (CB191) 

collects parking lot runoff and discharges to the western channel. The piped 

system extends south on Brook Road and collects drainage from several additional 

catch basins (CB234, CB235, CB237 and CB238) that appear to collect 

groundwater flow from several additional seeps as well as road runoff. This reach 

has an approximate maximum length of 240 feet. 


This reach has no remaining natural vegetation. The plant materials are limited to 

mown grass and ornamental trees as included on Table 2-1. The channels have 

vertical stone-lined walls approximately 12-18 inches in depth with soil bottoms 

approximately 2’-3’ width. The adjacent surface areas are narrow, grassed and 

curbed. The channels carry flow to catch basins at the eastern side of the property 

that appear to drain easterly to a small low wetland area where the creek turns 

sharply south in Reach 2. Flow was observed discharging in this area through 

vegetative cover and an accumulation of trash and debris made definitive 

assessment impossible. This wetland was discussed under Reach 2. The flow in 

the channels appears to be clear. While this reach provides little habitat value, the 

clear groundwater flow is a valuable contribution to the creek. 

3.1.4 WATERSHED QUALITY IMPROVEMENT PROJECTS AND PROGRAMS 

The Village has undertaken the following water quality improvement educational efforts 

and projects: 

• Storm Drain Stenciling Program – Port Jefferson School District and Village 

Highway Department 

• Stormwater Educational Newsletter – Conservation Advisory Council 

• Earth Day Beautification Project – Creek Clean-up Events – Village Board 

• School-based Pollution Education and Awareness Programs – Port Jefferson 

School District and Village Board 





• Village Personnel Stormwater Educational Training – Village Board 

• Stormwater Management Program Webpage – Village Board 

• Beach Clean-up Events – Village Board 

3.2 INTER-MUNICIPAL JURISDICTION AND AGREEMENTS 

Jurisdiction of the Mill Creek waterway and the watershed is shared at multiple levels of 

government. Although the Village of Port Jefferson exercises the primary authority over 

land use decisions pertaining to these waters, there are a number of Federal, State, 

County, and local private entities that have responsibilities concerning the management 

and uses in this area. 

The following sections provide a brief description of the roles played by public agencies 

that could be involved in implementing the recommendations of this Plan. 

JURISDICTIONAL BOUNDARIES 

The watershed is located completely within the Village of Port Jefferson. The creek 

discharges to the harbor through a closed culvert located beneath a Town of Brookhavenowned 

parking lot and the Town has jurisdiction over the underwater lands of the marina. 

New York State has jurisdiction over NYS Route 25A (West Broadway and Main Street) 

and the associated drainage systems. 

3.2.2 FEDERAL 

3.2.2.1 United States Environmental Protection Agency (USEPA) 

USEPA’s mission is to safeguard human health by protecting the integrity of the 

environment. USEPA pursues this goal by developing legislation and national 

environmental protection programs and by administering funding to states and 

municipalities for the development and implementation of environmental plans, 

policies, projects, and programs. USEPA sponsors a number of programs that 





advocate the protection of natural resources such as surface water quality, 

including various Clean Water Act (CWA) programs, and publishes a variety of 

environmental protection and planning guidance documents to provide technical 

support and educational assistance to the public. These actions may impact 

activities undertaken along the Mill Creek. 

The USEPA is also responsible for the remediation program being undertaken for 

the Lawrence Aviation Industries site and contamination plume that extends to 

Mill Creek. The remediation program is discussed in Section 2.3.4 of this Plan. 

3.2.2.2 United States Army Corp of Engineers (USACE) 

The USACE mission with regards to the waters of the United States is to provide 

services for planning, design, building, and operating water resources and other 

civil works projects including navigation and dredging, flood control, 

environmental protection and disaster response. The USACE reviews and permits 

projects proposed in navigational waters to ensure compliance with federal 

environmental laws. The outfall of Mill Creek into the Port Jefferson Harbor may 

be under the jurisdiction of the USACE. 

3.2.3 NEW YORK STATE 

3.2.3.1 New York State Department of Environmental Conservation (NYSDEC) 

The NYSDEC manages the State’s recreational and commercial fisheries, tidal 

and freshwater wetlands, and other natural resources common to the coastal 

environment. NYSDEC is responsible for the preservation of water quality 

throughout New York State, especially through the administration of the permit 

program under the State Pollution Discharge Elimination System (SPDES). The 

SPDES (Phase II) covers municipal stormwater systems, construction sites greater 

than one acre in area, and oversight of spill remediation activities. 





NYSDEC’s role within the Mill Creek watershed includes establishing and 

implementing natural resource protection programs, including environmental 

permitting programs; enforcing the State’s environmental laws; resource 

management and planning; conducting site inspections, scientific research, and 

water quality testing; and providing technical assistance to private entities and 

municipalities. 

3.2.3.2 New York State Department of State (NYSDOS) Division of Coastal 

Resources (DCR) 

NYSDOS DCR provides technical and financial assistance to governments, 

businesses, and private organizations for the improvement of waterfronts, and 

specifies policies on issues that affect coastal areas. The DCR is responsible for 

administering the mandates of the Federal Coastal Zone Management Act of 1972 

and the State Waterfront Revitalization Act of 1981, including its responsibility 

for reviewing Local Waterfront Revitalization Programs (LWRP), Harbor 

Management Plans (HMP), and various coastal projects for consistency with the 

State’s Coastal Management Plan. NYSDOS has provided the funding to 

undertake this Plan. 

3.2.3.3 New York State Department of Health (NYSDOH) 

NYSDOH identifies waterbodies that have compromised water quality that may 

have adversely affected the suitability of fish for human consumption, including 

Mill Creek. See Section 2.3.2 for specific advisories. 

3.2.3.4 New York State Department of Transportation (NYSDOT) 

The NYSDOT designs and maintains state roads and the corresponding drainage 

infrastructure. NYS Route 25A (West Broadway and Main Street) is under 

NYSDOT jurisdiction. The West Broadway segment of Route 25A has a 

drainage infrastructure system that is separate from the Mill Creek System and 

discharges directly to the harbor from an outfall located west of the Mill Creek 





outfall. The drainage system along the Main Street segment of Route 25A is 

interconnected with the drainage systems from the Village roads. NYSDOT 

employs a trained environmental staff that ensures that departmental actions 

comply with various state policies, laws and regulations enacted to protect the 

environment. The NYSDOT employs environmentally sound techniques while 

performing its duties; including maintaining roads and bridges, and requiring 

erosion and sedimentation control practices for every project. The NYSDOT is a 

regulated small Municipal Separate Storm Sewer System (MS4) within a 

Designated Urbanized Area identified by the NYSDEC. As a designated MS4 

under State Pollution Discharge Elimination System (SPDES) Phase II, the 

NYSDOT was required to develop and implement a Stormwater Management 

Program (SWMP). The NYSDOT SWMP identifies several activities that 

overlap with the WMP including public education, municipal coordination and 

stormwater infrastructure mapping. 

As a designated MS4, the state is required to address the stormwater discharges 

from their systems and will need to coordinate with Port Jefferson to improve 

water quality from road runoff in this system. 

3.2.4 TOWN OF BROOKHAVEN 

The Town has the authority to regulate land use activities in its respective unincorporated 

communities. The Town also regulates the use of underwater lands and the placement of 

structures on underwater lands within its respective boundary. The Town has jurisdiction 

of the underwater lands of the Town marina and owns the lands of the adjacent parking 

field located along Port Jefferson Harbor north of Mill Creek. The drainage from the 

parking field is collected in leaching pools within the parking area. No outfall to either 

the creek or the harbor was identified from these structures. Mill Creek is contained in a 

culvert that runs beneath the Town parking field and outfalls into the harbor at the Town 

marina. 





3.2.5 VILLAGE OF PORT JEFFERSON 

The Village of Port Jefferson is a regulated small MS4 within a designated Urbanized 

Area as identified by the NYSDEC. As a regulated MS4 under SPDES Phase II, the 

Village is required to develop and implement a SWMP. The Village has the authority to 

regulate land use activities in its jurisdiction. Departments within the Village that 

influence land use include: 

• Village Board – Mayor and Trustees 

• Planning Board 

• Conservation Advisory Council 

• Zoning Board of Appeals 

• Engineering Department 

• Department of Public Works 

• Building Department 

3.2.6 CITIZEN / CIVIC GROUPS 

In addition to federal, state, county and local governmental agencies, a variety of private 

organizations have been created to oversee, protect and preserve significant 

environmental features that are important to their region or municipality. Private 

organizations that may have interest in the Mill Creek watershed include the Business 

Improvement District (BID) and the Long Island Seaport and Eco Center (LISEC). The 

BID sponsors many events in the Village including annual Earth Day Clean-Up events 

that have focused on the creek corridor. LISEC is a not-for-profit organization that uses 

the Sound and the Harbor as a living laboratory and is dedicated to promoting 

appreciation, awareness and understanding of the local maritime history and the maritime 

environment. LISEC focuses on creation, education, conservation and restoration 

projects that have included wood boat building, Bayles boathouse restoration, adopt-abeach 

programs, and shellfish restoration projects. 





Additional groups that may be used to undertake projects or educational programs 

include the Lions Club, local Boy Scouts and Girl Scouts groups and the high school 

Ecology Club. 

Go Green is a joint project of the Village of Port Jefferson and the Humanities Institute at 

Stony Brook University. In 2009, Go Green has focused on programs to reduce chemical 

use within the Village and conducted educational events including the Port Jefferson Go 

Green Street Fest. 

. 

3.3 LAND AND WATER USE REGULATIONS AND CONTROLS 

3.3.1 REGULATIONS 

The following list of Village regulations and programs contain requirements that can 

have an effect on the use and quality of lands and waters of the Mill Creek watershed. 

Building Construction - Chapter 101. This chapter applies the NYS Uniform Fire 

Prevention and Building Code to all buildings and construction in the Village. The 

administration of the code rests with the Village Building Department. The Division is 

charged with the enforcement of the code relating to the erection, repairing, remodeling, 

altering, moving and inspection of buildings. 

Dogs and Other Animals - Chapter 117. This law includes provisions that require that 

dog waste on public property, or private property without permission, must be picked up 

and properly disposed of, and cannot be deposited in drainage systems. 

Environmental Quality Review - Chapter 129. The intent of this chapter is that all 

agencies of the village shall conduct their affairs with an awareness that they are stewards 

of the air, water, land and living resources of the village and that they have an obligation 

to protect its environment for use and enjoyment by this and future generations. Type I 





actions include any construction or disturbance of land within 50 feet of any bluff, 

wetland, pond, stream, creek, beach or waterway. 

Fire Prevention - Chapter 139. This chapter prescribes regulations consistent with 

nationally recognized good practice for the safeguarding of life and property from the 

hazards of fire and explosion arising from the storage, handling and use of hazardous 

substances, materials and devices and from conditions hazardous to life or property in the 

use or occupancy of buildings or premises. 

Flood Damage Prevention - Chapter 145. This chapter regulates uses, which are 

dangerous to health and safety; controls uses vulnerable to floods; controls the alteration 

of natural floodplains, stream channels and natural protective barriers; controls filling, 

grading, dredging and other development that may increase erosion or flood damages; 

and regulates the construction of flood barriers. 

Housing – Chapter 161. This chapter requires that proper drainage facilities be installed 

and maintained for public health and safety. 

Pollution – Chapter 191. This chapter prohibits the disposal of waste oil and petroleum 

products on lands or in waters and drainage systems. This chapter also prohibits the 

release of helium balloons because of impacts on marine life and mammals. 

Sand Pits and Quarries - Chapter 207. The purpose and intent of this chapter is to 

restrict the removal of sand and gravel to those instances where it is absolutely essential 

to remove said raw materials from a site in connection with the residential, commercial or 

industrial development of the premises, and to encourage development which utilizes 





existing slope contours wherever possible so that drainage patterns and existing 

vegetation will be subjected to the least disturbance as is practicable. 

Sewers - Chapter 211. Section 211-6 of this Chapter allows for connection to storm 

sewers for buildings and premises. Where storm sewers are not available for singlefamily 

residences, this requirement may be waved by the Building Department if runoff 

can be maintained on-site and will not impact adjoining properties or public streets and 

sidewalks. The potential for Section 211-6 of Chapter 211 to conflict with Chapter 213 - 

Stormwater Management requirements should be investigated. 

Stormwater Management – Chapter 213. This Chapter includes provisions for 

stormwater management, erosion and sediment control and illicit discharges and 

connections as outlined below. These regulations were adopted in accordance with 

NYSDEC SPDES MS4 Phase II requirements. 

Stormwater Management and Erosion and Sediment Control – Article I 

Article I of Chapter 213 establishes minimum stormwater management requirements 

and controls to protect and safeguard the general health, safety, and welfare of the 

public. This article seeks to meet those purposes by achieving the following 

objectives: 

• Meet the requirements of minimum measures 4 and 5 of the SPDES General 

Permit for Stormwater Discharges from Municipal Separate Stormwater Sewer 

Systems (MS4s), Permit No. GP-02-02, or as amended or revised; 

• Require land development activities to conform to the substantive requirements of 

the NYS Department of Environmental Conservation State Pollutant Discharge 

Elimination System (SPDES) General Permit for Construction Activities, GP-02- 

01, or as amended or revised; 





• Minimize increases in stormwater runoff from land development activities in 

order to reduce flooding, siltation, increases in stream temperature, and streambank 

erosion and maintain the integrity of stream channels; 

• Minimize increases in pollution caused by stormwater runoff from land 

development activities which would otherwise degrade local water quality; 

• Minimize the total annual volume of stormwater runoff which flows from any 

specific site during and following development to the maximum extent 

practicable; and 

• Reduce stormwater runoff rates and volumes, soil erosion and nonpoint source 

pollution, wherever possible, through stormwater management practices and to 

ensure that these management practices are properly maintained and eliminate 

threats to public safety. 

Illicit Discharge and Connection – Article II 

The purpose of Article II of Chapter 213 is to provide for the health, safety, and 

general welfare of the citizens of The Incorporated Village of Port Jefferson through 

the regulation of non-stormwater discharges to the storm drainage system to the 

maximum extent practicable as required by federal and state law. This article 

establishes methods for controlling the introduction of pollutants into the municipal 

separate storm sewer system (MS4) in order to comply with requirements of the 

National Pollutant Discharge Elimination System (NPDES) permit process. The 

objectives of this article are: 

• To regulate the contribution of pollutants to the municipal separate storm sewer 

system (MS4) by stormwater discharges by any user; 

• To prohibit illicit connections and discharges to the municipal separate storm 

sewer system; 





• To establish legal authority to carry out all inspection, surveillance and 

monitoring procedures necessary to ensure compliance with this article. 

Subdivision of Land – Chapter 220. This chapter includes the following requirements 

for development of property for a subdivision with regards to existing watercourses and 

drainage ways: 

Where existing brooks, water bearing ditches and dry streambeds giving evidence to 

seasonal run-off use are encountered, such areas shall be maintained for drainage 

purposes or other adequate means for providing for such drainage shall be installed at 

developer’s expense. A right-of-way or drainage easement of sufficient minimum 

width to include a 20-foot access strip in addition to the width of the ditch, brook, or 

streambed as measured from bank top to bank top shall be provided to the Village for 

drainage purposes. Such right-of-way or easement shall be shown on the final plan 

with property bearings and distances. 

Recharge basins shall be required to contain a five (5) inch rainfall, with coefficient 

of runoff based on runoff characteristics, where a positive overflow is provided. 

On-site drainage facilities shall be provided for to collect ten-year storm including up 

stream drainage entering the site and shall assess down stream impacts of runoff. 

A Stormwater Pollution Prevention Plan shall be submitted as part of the subdivision 

application and application shall receive State Environmental Quality Review. 

Trees, Grading and Land Clearing – Chapter 241. This chapter includes provision for 

permit requirements for large-scale land clearance, including requirements for stormwater 

runoff and erosion control measures. 





Zoning - Chapter 250. This chapter establishes the zoning ordinance for the Village, the 

zoning map, zoning districts and regulations. 

3.3.2 PROGRAMS 

The following Village programs are related to reducing pollutants that can potentially 

reach the creek and increasing resident stewardship of waterbodies in their communities. 

Residential Curbside Recycling. The Village has established a curbside recycling 

program that accepts paper, #1 and #2 plastics, aluminum, glass and metal grocery store 

type containers. 

Stormwater Management Program. This permit program has been implemented in 

accordance with the requirements of the NYSDEC SPDES Phase II Stormwater 

Management Program. The program includes state mandated programs and practices in 

public education and outreach, public participation and involvement, illicit discharge 

detection and elimination, construction site stormwater runoff control, post-construction 

stormwater management in new development and redevelopment projects, and pollution 

prevention/good housekeeping for municipal operations. This program is discussed 

further in Section 6: Phase II Stormwater Permit Compliance, which includes 

descriptions of the Village efforts to implement this program. 

3.4 POLLUTION POTENTIAL 

A watershed’s potential to generate pollution that reaches waterbodies is based on 

assessing several conditions, including identifying sources that generate pollutants and 

the potential for the pollutant to be carried in runoff. Pollutant sources are based on 

assessment of land uses, while runoff potential is based on the assessment of the 

imperviousness of the catchment area. Potential pollutant load calculations consider the 

land uses and impervious areas within a watershed. 





3.4.1 POLLUTANTS OF CONCERN 

Mill Creek is listed in the NYSDEC Atlantic Ocean/Long Island Sound Waterbody 

Inventory and Priority Waterbody List – 2002 (PWL) as a tributary to Port Jefferson 

Harbor south (1702-0241). As a main tributary of a large watershed that is primarily a 

mix of medium to high-density residential and commercial land use, Mill Creek has the 

potential to be contributing large pollutant loads into the harbor. 

Southern Port Jefferson Harbor is closed for shellfish harvesting because of high bacteria 

levels. Fish consumption and various recreational activities in the southern harbor are 

limited by pathogens, nutrients, and other pollutants. According to the PWL, the major 

pollutant sources contributing to the closures and pollutant loads in the southern harbor 

are the municipal sewage treatment plant, storm sewers, urban runoff, and boat pollution. 

A secondary source suspected of contributing to the closures is failing on-site septic 

systems. The Mill Creek is contributing flow to the harbor that is impacted by storm 

sewers, urban runoff and on-site septic systems. The constricted tidal exchange between 

the harbor and the Long Island Sound can also contribute to pollutant levels in the harbor. 

The pollutants of concern for waters where uses impacted include fish consumption, 

aquatic life and recreation are described below. The PWL lists priority organics 

(PCBs/migratory fish), dissolved oxygen/oxygen demand, nutrients (nitrogen), and 

pathogens as known pollutants of concern for the Port Jefferson Harbor south. Other 

suspected or possible pollutants of concern include oil and grease (hydrocarbons). The 

Pathogen TMDL discussed in Section 2.3.3 identified pathogens, including total coliform 

and fecal coliform, as a pollutant of concern in the Port Jefferson Harbor watersheds and 

calls for a 94% reduction in fecal coliform loads in the north harbor where shellfishing is 

seasonally certified. Many of the pollutants of concern are typically related to the highdensity 

residential and commercial land uses and roadways predominant in this 

watershed. These pollutants can be carried from Mill Creek into the southern harbor and 

may eventually impact water quality in the northern harbor. The following is a 

discussion of potential pollutants in the Mill Creek watershed: 





Fecal Coliform and Pathogens – Pathogens include bacteria, viruses, and other 

microorganisms that can cause human illnesses. Common pathogens include bacteria 

such as E. coli. E. coli is an enteric (intestinal) bacterium, usually not harmful in and of 

itself. It is easily detected and its presence is used to indicate the possible presence of 

pathogens that are both more serious and more difficult to detect. Bacteria levels in 

undiluted urban runoff exceed public health standards for primary contact in-water 

recreational activities almost without exception. Pathogens of concern include the 

hepatitis A virus, salmonella, Norwalk virus, Norwalk-like virus, vibrio bacteria and other 

pathogens associated with sewage and animal waste. Exposure pathways include 

consumption of shellfish that have acquired the pathogens through filter feeding of 

surrounding waters containing the pathogens and swimming or other contact with waters 

with elevated levels of pathogens. The suspected causes of this impairment are 

stormwater runoff carrying pet, wildlife and waterfowl wastes and improperly operating 

sanitary systems. 

Total Suspended Solids (TSS) (Silts and Sediments) – TSS includes silts and sediments 

that constitute the largest mass of pollutant loads to surface waters. Mineral and organic 

sediment is generally considered the largest surface water pollutant in both mass and 

volume. TSS is exported in the greatest quantities from construction sites. After 

development is complete, the greatest loads are exported from larger, intensively 

developed watersheds with high percentages of impervious surfaces. Many other types 

of contaminants (including hydrocarbons, nutrients, and pathogens) associate closely 

with sediment particles, especially fine-grained particles that are suspended in the 

stormwater flow. Thus, the fate of sediment loads carried by stormwater in large measure 

dictates the fate of these sediment-associated contaminants. The suspended sediment 

itself can have adverse impacts on the environment, including increased turbidity and 

reduced light penetration, which in turn can decrease submerged aquatic vegetation 

survival. After reaching slower moving, open-water areas, suspended sediment particles 

settle to the bottom where they may smother the benthic community, change the 





composition of the substrate, fill impoundments, and decrease aesthetic values of the 

water body. The major contributors to this impairment are soil erosion, winter road 

sanding operations and road runoff. Sediment loads may be largely retained in the creek 

due to the piped outfall to the harbor and water elevations in the tidal segment of the 

creek. 

Large-scale deposition of soil can inhibit natural pollutant attenuation processes, silt-up 

stream channels and wetlands, decrease flood storage capacity, reduce the effectiveness 

of stormwater pollution treatment devices, and inhibit the natural functions of water 

bodies, including fish and wildlife feeding, breeding, and cover uses. In addition, mineral 

soil particulate matter, organic debris, and man-made pollutants can act in concert to 

increase the level of turbidity in streams, creeks and shallow, low-energy coastal systems. 

The resultant decrease in water clarity diminishes sunlight penetration and inhibits 

photosynthesis in submerged aquatic vegetation. 

Floatables (Large Scale Debris and Trash) – Large-scale debris or trash (floatables) 

have additional negative effects on the watershed. Besides the obvious negative aesthetic 

effects, trash can impact aquatic life through either ingestion or entanglement. Marine 

mammals, turtles, birds, fish, and crustaceans have been affected by entanglement in or 

ingestion of debris. Entanglement can cause wounds, loss of limbs, strangulation, and 

loss of ability to swim. Ingestion can block intestinal tracts and sharp items can damage 

mouths, intestinal tracts, and stomachs. Buoyant floatables transported through the 

waterbody into the marine environment and items manufactured from synthetics that 

persist in the environment for long periods of time tend to be more harmful than 

settleable elements and materials that biodegrade quickly. The dumping of larger debris, 

such as furniture, automobiles parts, construction debris and shopping carts, can create 

physical barriers to the stream flow and increase shoreline erosion. Human littering and 

dumping are major contributing factors to large-scale debris pollution. Large quantities 

of floatables and smaller amounts of construction debris were observed in several 

locations of the creek, mainly upstream of Barnum Avenue. 





Nutrients and Dissolved Oxygen – Nutrients usually refer primarily to phosphorus and 

nitrogen, two elements that are necessary for plant growth. Nonpoint sources of 

phosphorus and nitrogen are the recognized causes of water quality degradation in many 

water bodies. In freshwater systems, phosphorus is usually the least available element 

relative to demand, while in marine systems, nitrogen is often the controlling factor. The 

fertilizing effects of nitrogen and phosphorus have created water quality problems in 

many coastal and inland areas. They cause cultural eutrophication. Eutrophication is 

typified by rampant plant growth leading to diminished water quality, which can cause 

problems including aesthetic impairments, and undesirable swimming conditions. 

Nighttime respiration by plant growth and bacterial decomposition of dead vegetation 

reduces the level of dissolved oxygen in the water. Oxygen deprivation can cause mobile 

animals to leave an area, which is one reason areas low in oxygen (hypoxic) often have 

low numbers of fish. In cases that are more serious and for species that cannot flee, 

hypoxia can stunt growth or kill. The major contributors to this impairment are runoff 

from cultivated lawns and landscaped areas, pet and waterfowl wastes, and improperly 

operating sanitary systems. 

Phosphorus discharge regulations are set through the National Pollutant Discharge 

Elimination System (NPDES). According to the NYSDEC Stormwater Design Manual, 

the New York State Recommended Guidance Value for phosphorus is 20 ug/l. 

Petroleum Compounds (Oils and Grease) - Petroleum compounds (oils and grease) 

contain an array of hydrocarbon compounds, some of which can be toxic to aquatic life at 

low concentrations. The major source of hydrocarbons in urban runoff is through the 

leakage of crankcase oil and other lubricating agents from motor vehicles and from 

facilities that service motor vehicles (e.g., repair shops and gasoline stations). 

Hydrocarbon concentrations are typically highest in runoff from parking lots, roadways, 

and service stations. Illegal disposal of waste oil onto streets and into storm sewers can 

also contribute to the problem on a localized level. Specific site uses that have been 





identified to generate high pollutant loads on impervious surfaces are defined as “hot 

spots.” The large parking areas and road systems that drain to the creek contribute 

hydrocarbon load to the creek. 

Toxic Substances – Toxic substances encompass a broad range of materials that can have 

adverse impacts on the environment or human health. These substances include organic 

and metallic chemical residues from manufacturing, anthropogenic (human-made) 

chemicals, and agricultural and horticultural pesticides. Many of these toxic substances 

are a result of human development and activity. One of the major contributors to this 

impairment is the Lawrence Aviation Industries site hazardous waste plume migrating 

north in the groundwater below the Mill Creek watershed and emanating into the surface 

waters of Mill Pond and Mill Creek. As discussed in Section 2.3.4 Lawrence Aviation 

Industries Superfund Site Remediation, the waterbodies have been contaminated with 

VOCs including TCE, PCE, and 1,2-DCE at concentrations exceeding delineation 

criteria. A remediation program is currently being developed and implemented by the 

USEPA. Assessment of the pollutant levels for these materials has been completed by 

the USEPA and is not included in the pollutant load analysis in Section 4.1.3. 

3.4.2 IMPERVIOUS COVER AND RUNOFF POTENTIAL 

Stormwater runoff carries pollutants to receiving waters. Human activities, in particular 

the creation of impervious surfaces, have an overriding effect on contaminant inputs in 

stormwater discharges. Land development alters stormwater drainage characteristics 

within a watershed, which can have a profound effect on water quality of adjacent 

waterbodies. Development results in the replacement of permeable natural land surfaces 

(e.g., wetlands, woodlands, meadows, etc.) with impervious surfaces such as roadways, 

buildings, walkways, and pavements. Even in areas cleared for development that are 

subsequently replaced with landscaping, the planted vegetation generally has a lower 

capacity for absorbing rainwater than the original vegetation; this is especially true with 

respect to turf areas. The overall consequence of these conditions is that development 

generally increases the amount of runoff generated on a given parcel of land. The 





augmented volume of runoff from developed properties results in increased flow volumes 

in creeks and also an increase of pathogens and other deleterious substances carried from 

the land surface to receiving waters. 

The pollutant loads in runoff were estimated by utilizing the “Simple Method” as 

discussed below in Section 3.4.3. The Simple Method formula requires an estimate of 

the impervious surface contributing runoff to an outfall. The method for estimating the 

impervious surface in the subdrainage areas is the use of the impervious cover factor 

tables included in the NYS Stormwater Management Design Manual (NYSSMDM). The 

impervious cover factor table percentages are estimated by calculating the area of each 

land use within each catchment area and assigning impervious cover factors as identified 

on NYSSMDM Table 4.2 Land Use and Impervious Cover (2010). Table 3-1 Land Use 

and Impervious Cover of this Plan includes the impervious cover estimates for the 

drainage areas if each reach. 

Pollutants accumulate on imperious surfaces and each rainfall event that generates runoff 

washes up to 90% of the accumulated pollutants into the receiving waters. The 

watersheds various surfaces and land uses are the primary sources of most pollutants 

including sediments, waterfowl and pet wastes, hydrocarbons from vehicle oil and grease, 

vegetative matter, litter, and debris. In addition, unvegetated surfaces erode, oils are 

dumped to storm structures, excessive amounts of fertilizer and pesticides are applied to 

lawns and gardens, sanitary systems age and their function decreases, and salts and sands 

are applied to roads in winter. 

The following factors are additional indicators of increased runoff potential: 

• Water bodies located close to pollutant sources 

• Shoreline areas lacking adjacent upland vegetated buffers 

• Steep slopes 

• High waterfowl populations 



Mill Creek Watershed Management Plan 

Table 3-1 

Land Use and Impervious Cover 

Total Area 

High Density Residential 

(typically < 1/4 ac) 

Medium-Density Residential 

(typically generally 1/4 ac to 1/2 

ac) /Institutional Areas 

Commercial/ Industrial Areas 

Open Urban Land/Cultivated 

Areas (Park Land, Recreational 

Areas, Golf Courses, Schools ) 

Road Right-of Ways/ Parking 

and Business District 

Reach Average Percent Impervious 

SUB-DRAINAGE AREA 

(28% impervious) (70% impervious) (9% impervious) (90% impervious) 

acres acres percent acres percent acres percent acres percent acres percent 

(40% impervious) 

REACH 1 - TOTAL 433.5 60.6 14 173.8 40.1 62.7 14.5 66.9 15.5 69.5 16.1 42.8 

Drainage Area 1A - Village Parking 2.5 0 0 0 0 0 0 0 0 2.5 100 90.0 

Drainage Area 1B - Village Parking 8.8 0 0 0 0 0 0 0 0 8.8 100 90.0 

Drainage Area 1C - Village Parking 12.0 4 33.4 0 0 2 16.7 0 0 6 50 70.0 

Drainage Area 1D - Prospect, South, Spring, Tuthill 46.4 20.1 43.4 10.9 25.2 5.5 21.9 4.0 18.3 5.9 32.3 44.4 

Drainage Area 1E - Jones/Old Post South 340.5 36.5 10.8 157.7 46.4 55.2 16.3 49.4 14.6 41.7 12.3 40.9 

Drainage Area 1F - School 15.5 0 0 2 13 0 0 13.5 87.1 0 0 11.5 

Drainage Area 1G - Markham & Barnum @ Maple 5.4 0.0 0 3.2 59.3 0.0 0 0.0 0 2.2 40.8 53.3 

Drainage Area 1H - Commercial @ W. Broadway 2.4 0 0 0 0 0 0 0 0 2.4 100 90.0 

REACH 2 - Barnum Avenue 30.4 3.9 12.9 6.9 22.7 5 16.5 10 32.9 4.6 15.2 39.6 

REACH 3 - Brook Road to Longfellow 44.1 8 18.2 18.6 42.2 0 0 11 25 6.5 14.8 34.6 

REACH 4 - Brook Road to West Broadway 9.9 0 0 8.7 87.9 0.5 5.1 0 0 0.7 7.1 34.5 

WATERSHED TOTAL 517.9 72.5 14 208.0 40.2 68.2 13.2 87.9 17 81.3 15.7 41.7 

Note: Acres and Percentages exceed 100% due to rounding 

Sources: Land Use Areas - Suffolk County Tax Data 

% Impervious Factors - NYSSMDM Table 4.2 Land Use & Impervious Cover (2010) Average, Road Right-of Ways, Parking Business District added as 90%




• High-density residential development with lot sizes less than 1 acre per unit 

• Septic systems in excess of 1-2 systems per acre 

• Flows that are extreme for the channel condition 

• Soils with poor percolation properties 

• Maintenance practices that are not routinely undertaken 

• Erodable soils without well-established vegetation cover 

• Parking facilities where runoff is not self-contained 

Most of the factors included in this list are related to the conditions found in locations 

within the Mill Creek watershed including the waterbody location, lack of buffers, steep 

slopes, high-density residential development, septic systems, extreme flows, lack of 

vegetative cover, lack of routine maintenance and parking area that do not contain storm 

runoff. The following paragraphs of this section of the Plan estimate the pollutant loads 

generated in each reach. Sections 4.0 of this Plan identifies methods to reduce pollutant 

loads through the implementation of stormwater mitigation projects, the incorporation of 

runoff management practices and strategies, and the continuation of educational 

programs for area residents and businesses. 

3.4.3 POLLUTION LOAD ANALYSIS 

Typically, water turbidity is at its highest during and immediately after the “first flush” of 

a storm event as a result of increased stormwater and pollutant load discharge. The “first 

flush” refers to the initial rainfall event that washes the majority of the surface pollutant 

deposits into the waterbodies. The “first flush” is also referred to as the water quality 

volume (WQV). In order to quantify pollutant loading from each reach, a watershed 

planning-level method to estimate these loads was utilized. The NYSSMDM identifies 

the WQV to be used to capture and treat 90% of the average annual stormwater runoff 

volume from a 1.3-inch rainfall event on Long Island. Pollutant loading calculations 

were developed using the “Simple Method” outlined in the publication Controlling 

Urban Runoff: A Practical Manual for Planning and Designing Urban BMPs and at the 

NYSDEC Stormwater Webpage “Tools – Stormwater Technical Standards” 

(www.dec.ny.gov/chemical/29085.html). The “Simple Method” calculations estimate the 





WQV for each reach. Capturing and infiltrating, or detaining and filtering, the identified 

runoff quantities will significantly reduce the pollutants reaching the surface waters. 

Actual final design criteria and calculations used to determine mitigation measures and 

pollution removal rates will be dependent on a detailed analysis of the land use, 

impervious cover, soil types, hydrology and topography of the site. 

WQVs were sized using the NYSSMDM Sizing Criteria 90 % rule where as: 

WQv = ((P) (Rv) (A))/12 

WQv = Water quality volume (in acre feet) 

Rv = 0.05+0.009(I) 

I = Impervious Cover (Percent) (as described above) 

P = 90% rainfall event number per chart = 1.3 inches on Long Island 

A = Site area in acres 

The Simple Method estimates pollutant loads as a product of annual runoff volume and 

pollutant concentration where as: 

L = 0.226*R*C*A 

L = Annual Load (lbs) 

R = Annual Runoff (inches) (See below) 

C = Pollutant Concentration (mg/l) (see below) 

A = Area (Acres) 

0.226 = Unit Conversion factor 

The Simple Method estimates pollutant loads for bacteria with a different unit conversion 

factor to account for different units. Fecal coliform calculations were developed using 

the conversion factor outlined on the Stormwater Managers Resource Center website 

(www.stormwatercenter.net) on the monitor/assess page under Simple Method. 

L = (1.03*10¯³)*R*C*A 

L = Annual Load (Billion Colonies) 

R = Annual Runoff (inches) (See Below) 

C = Pollutant Concentration (mg/l)* 

A = Area (Acres) 





(1.03*10¯³) = Unit Conversion factor 

*The pollutant concentrations for ‘C’ for TSS, TP, TN, and oil and grease are taken from NYSSMDM (2008) Table 

2.1 - National Median Concentrations for Chemical Constituents in Stormwater. The pollutant concentration 

for “C” for Fecal Coliform is taken from NPDES Database Summary (University of Alabama/CWP) (2003). 

Total Suspended Solids (TSS) 

54.5 mg/l 

Total Phosphorus (TP) 

0.26 mg/l 

Total Nitrogen (TN) 

2.00 mg/l 

Oil and grease 

03.0 mg/l 

Fecal Coliform (FC) 

5,000 MPN/100 ml 

Annual runoff was calculated as: 

R = P*Pj*Rv 

R = Annual Runoff (inches) 

P = Annual Rainfall (Inches) (42” for Long Island) 

Pj = Fraction of annual rainfall events that 

produce runoff (typically 0.9) 

Rv = Runoff coefficient 

Rv = 0.05+0.9(Ia) 

Ia = impervious fraction – See Table 2-5 

Based on the Simple Method calculations, the annual pollutant loads for the Mill Creek 

watershed is estimated for the entire drainage area and for the road right-of ways only as 

shown below. 

ANNUAL POLLUTANT LOADS 

DRAINAGE AREA TOTAL 

ROADS ROW ONLY 

3,774 lbs of total nitrogen 764 lbs of total nitrogen 

102,596 lbs total suspended solids 20,564 lbs total suspended solids 

503 lbs total phosphorus 107 lbs total phosphorus 

5,657 lbs of oil and grease 1,141 lbs of oil and grease 

42,905 billion colonies fecal coliform 8,608 billion colonies fecal coliform 

The distinction between total drainage area and road right-of-way is made as mitigation 

measures to reduce pollutant loads fall into two categories: structural measures that 

remove pollutants carried by storm runoff and source control actions that reduce the 





pollutant loads generated. Structural measures are generally implemented by municipal 

jurisdictions that construct and maintain the measures on public streets, while source 

control actions can be implemented by individual property owners and residents within 

the watershed to reduce the amount of pollutants generated. 

The total annual pollutant load estimate for the watershed drainage area is shown on 

Table 3-2A: Annual Watershed Pollutant Load Estimates along with annual pollutant 

loads estimates for each drainage area. Table 3-2B: Annual Road ROW Pollutant Load 

Estimates shows the annual pollutant loads estimated to be generated from the roads 

within the watershed only. The runoff from roads represents 20% of the potential 

pollutant load from the entire watershed. The selection of an abatement action and the 

size of the area to be treated (watershed or road area) will include consideration of the 

ability for private properties and individual lots to contain runoff on-site. 

To complete the pollutant load calculations in Reach 1, the watershed was divided into 

drainage areas. The drainage areas are streets sections that drain to a specific outfall or 

pipe segment and have been defined by reviewing the area topography, in conjunction 

with existing drainage structures and piping. These drainage areas will be used to 

identify upgradient mitigation measures and the WQVs in Reach 1. 




Table 3-2A 

Annual Watershed Pollution Load Estimates 

Total Nitrogen 

(TN) 

c = 2.0 mg/l 

Total Suspended 

Solids (TSS) 

c = 54.5 mg/l 

Total 

Phosphorus (TP) 

c= 0.26 mg/l 

Oil and Grease 

c = 3.0 mg/l 

Fecal Coliform 

c= 5000MPN/100 

ml 

SF Acres % 

WQv-acrefeet 

ESTIMATED AVERAGE ANNUAL LOAD 

Contributory Area 

Contributory Area 

Impervious Area 

Water Quality 

Storm Event 

Volume 

Water Quality 

Storm Event 

Volume 

Annual Rainfall 

Annual Runoff 

SUB-DRAINAGE AREA 

WQv-Cubic 

Feet inches inches lbs lbs lbs lbs 

billion 

colonies 

REACH 1 - TOTAL 35,889,910 433.5 42.8 20.42 820,265 42 16.44 3,221 87,764 419 4,832 36,696 

Drainage Area 1A - Village Parking 105,627 2.5 90.0 0.23 11,208 42 32.51 37 1,002 5 56 419 

Drainage Area 1B - Village Parking 382,543 8.8 90.0 0.82 39,451 42 32.51 130 3,524 17 194 1,474 

Drainage Area 1C - Village Parking 520,349 12.0 70.0 0.88 41,055 42 25.70 140 3,800 19 210 1,589 

Drainage Area 1D - Prospect, South, Spring, Tuthill 2,013,281 46 44.4 2.26 107,145 42 17.00 358 9,719 49 537 4,066 

Drainage Area 1E - Jones/Old Post South 14,809,175 340.5 40.9 15.43 735,753 42 15.81 2,438 66,332 323 3,655 27,739 

Drainage Area 1F - School 672,034 15.5 11.5 0.26 11195 42 5.79 41 1,105 6 61 462 

Drainage Area 1G - Markham & Barnum @ Maple 231,277 5.4 53.3 0.31 15,952 42 20.009 49 1331 7 74 557 

Drainage Area 1H - Commercial @ W. Broadway 101,891 2.4 90.0 0.22 10,759 42 32.51 36 961 5 53 402 

REACH 2 - Barnum Avenue 1322916 30.4 39.6 1.34 58,274 42 15.35 211 5,750 28 317 2,404 

REACH 3 - Brook Road to Longfellow 1919738 44.1 34.6 1.73 75,165 42 13.65 273 7,416 36 409 3,101 

REACH 4 - Brook Road to West Broadway 427,046 9.9 34.5 0.39 16,844 42 13.63 61 1,662 8 92 695 

WATERSHED TOTAL 3,774 102,602 503 5,658 42,908 

Sources : Pollutant Coefficient "c" Valves - NYSDEC Stormwater Management Design Manual, Table 2.1, 2003; except F Coliform - NPDES Database Summary (University of Alabama/CWP, 2003) 

Impervious Area: See Table 4-1 of this Plan



Table 3-2B 

Annual Road ROW Pollutant Load Estimate 

Total Nitrogen 

(TN) 

c = 2.0 mg/l 

Total 

Suspended 

Solids (TSS) 

c = 54.5 mg/l 

Total 

Phosphorus 

(TP) c= 0.26 

mg/l 

Oil and Grease 

c = 3.0 mg/l 

Fecal Coliform 

c= 

5000MPN/100 

ml 

SF Acres % 

ESTIMATED AVERAGE ANNUAL LOAD 

Road ROW Area 

Road ROW Area 

Impervious Area 

Water Quality 

Storm Event 

Volume 

Water Quality 

Storm Event 

Volume 

Annual Rainfall 

Annual Runoff 

Drainage Area 

WQv-acrefeet 

WQv- 

Cubic 

Feet inches inches lbs lbs lbs lbs 

billion 

colonies 

REACH 1 - Drainage Areas Total 2,146,500 49.3 75.0 3.87 168,590 42 27.41 611 16,634 80 916 6,955 

Drainage Area 1A - Village Parking 0 0.0 75.0 0.00 0 42 27.41 0 0 0 0 0 

Drainage Area 1B - Village Parking 0 0.0 75.0 0.00 0 42 27.41 0 0 0 0 0 

Drainage Area 1C - Village Parking 0 0.0 75.0 0.00 0 42 27.41 0 0 0 0 0 

Drainage Area 1D - Prospect, South, Spring, Tuthill 252,750 5.8 75.0 0.46 19,851 42 27.41 75 1,960 12 110 822 

Drainage Area 1E - Jones/Old Post South 1,798,750 41.3 75.0 3.24 141,277 42 27.41 515 13,945 70 772 5,833 

Drainage Area 1F - School 0 0.0 75.0 0.00 0 42 27.41 0 0 0 0 0 

Drainage Area 1G - Markham & Barnum @ Maple 95,000 2.2 75.0 0.17 7,461 42 27.41 28 737 4 41 308 

Drainage Area 1H - Commercial @ W. Broadway 0 0.0 75.0 0.00 0 42 27.41 0 0 0 0 0 

REACH 2 - Barnum Avenue 197,500 4.5 75.0 0.36 15,512 42 27.41 57 1,531 8 85 640 

REACH 3 - Brook Road to Longfellow 280,000 6.4 75.0 0.50 21,992 42 27.41 80 2,170 11 120 908 

REACH 4 - Brook Road to West Broadway 29,700 0.7 75.0 0.05 2,333 42 27.41 9 231 2 13 97 

60.9 

WATERSHED TOTAL ANNUAL POLLUTANT LOAD ESTIMATES 

764 20,574 107 1,141 8,608 

Sources : Pollutant Coefficient "c" Valves - NYSDEC Stormwater Management Design Manual, Table 2.1, 2003; except F Coliform - NPDES Database Summary (University of Alabama/CWP, 200 

Impervious Area: See Table 4-1 of this Plan




4.0 STORMWATER POLLUTANT CONTROL 

RECOMMENDATIONS 

4.1 WATERSHED-WIDE MITIGATION RECOMMENDATIONS 

Strategies to minimize point and non-point source pollution and improve the Creek 

corridor habitat require an integrated, approach involving natural resource protection, 

educational efforts, watershed-wide management measures, land use modifications, nonstructural 

source control best management practices, site-specific structural control 

measures and target project recommendations. Natural resource recommendations focus 

on actions that will result in habitat improvements and protection along the creek 

corridor. Education and outreach recommendations focus on increasing the information 

available to community members including residents, property owners, businesses and 

municipal employee and agencies on ways they can modify behaviors and activities to 

reduce pollution deposits. Point and non-point source management and control 

recommendations include actions to mitigate the levels of pollutants generated and to 

remove pollutants in runoff prior to outfalling into the Creek. Water quality and 

pollution reduction monitoring includes measures to monitor and assess changes in water 

quality and pollutant levels over time. 

4.1.1 NATURAL RESOURCE IDENTIFICATION, PROTECTION AND 

RESTORATION RECOMMENDATIONS 

These following recommendations are proposed to promote restoration and protection of 

the natural resources and improve the health of Mill Creek. The long-term ability to 

implement improvements to Mill Creek is contingent upon the ability to sustain support 

and encourage collaboration with local groups and organizations. This section identifies 

measures for creek corridor restoration, property acquisition, land use modifications, 

creek maintenance and habitat and water quality monitoring. Implementation of the 





specific actions can reduce development impacts on the creek corridor, provide 

opportunities for pollution reduction and storm runoff mitigation, and measure habitat 

and water quality improvements. 

Creek Corridor Restoration 

A program can be implemented to restore, enhance and protect the existing wetland, pond 

and creek and adjacent natural shorelines and upland areas. Section 5.0 of this Plan 

discusses the Creek corridor restoration recommendations in further detail and for 

specific locations. The following recommendations are an overview of restoration 

recommendations. 

Specific Actions: 

• Investigate removal of creek flow restrictions and methods to improve tidal flow 

within the creek. 

• Remove sediment from segments of the creek where road runoff has resulted in 

sediment deposits impacting the creek cross section and depths. 

• Stabilize shoreline segments that are currently eroding through revegetation of the 

riparian buffer. 

• Map existing extents of natural vegetation and invasive, non-native vegetation, 

remove invasive species within the creek corridor and restore shoreline with 

native plant materials appropriate to the creek habitats. 

• Institute a program to assess the creek corridor for wildlife habitat potential and 

improvements due to restoration efforts. 

Property Acquisition, Land Preservation and Land Use Modification 

The acquisition and preservation of parcels within a watershed can reduce the total 

amount of impervious surfaces that can be developed and can increase public access to 

the creek. Acquisition of property can provide opportunities to locate water quality 

improvement projects that require a larger area, such as infiltration basins, stormwater 

wetlands and bioretention ponds. 






• Acquire for preservation privately held parcels that include existing wetlands or 

are immediately adjacent to the creek corridor to protect the creek from further 

encroachment and to provide additional runoff retention capacity. Specific 

parcels recommended for acquisition include privately-owned, undeveloped or 

underutilized parcels such as: 

• Tax Map No 0206-12-6-7 on the west side of Barnum Avenue in Reach 2 

• Tax Map No’s 0206-11-6-18, 19, 20 east side of Brook Road in Reach 2 

• Where parcels cannot be acquired for preservation, increasing vegetated buffers 

along the creek can reduce surface runoff, and improve water quality and 

aesthetics. Current code requirements state that a site developer shall “offer the 

Village a right-of-way of sufficient minimum width to include a 20-foot access 

strip in addition to the width of the waterway as measured from bank top to bank 

top”. The Village should modify the code to require a minimum 10-foot width 

vegetated buffer along the top of the creek bank where the potential for vehicle 

access is deemed necessary to a full 20-foot width vegetated buffer where vehicle 

access is not necessary. The code should require submission of riparian buffer 

and bank restoration plans that include removal of invasive species and planting 

of appropriate native materials as part of the site plan approval documents. 

Although relevant to all parcels along the creek, the parcels reported to have the 

potential for redevelopment are the Tax Map parcels identified above and parcels 

0206-12-6-2.1, 0206-11-6-3, and 0206-11-6-4.1. 

Community and Volunteer Programs 

Local community groups can be instrumental in implementing many of the natural 

resource improvement recommendations in this Plan through their active participation in 

public education, program planning and oversight, restoration activities, maintenance 

efforts and monitoring programs. 


• A cooperative arrangement between the Village and local schools can provide 

significant mutual benefit and serve as an important mechanism for local 

involvement in protecting the Mill Creek watershed. A collaborative effort can be 

undertaken in a variety of projects, depending upon the needs of the school 

district and the interests of its teachers and students, and could range from civicminded 

involvement to more academically-oriented research projects. These 

programs can also work with stakeholder organizations such as the BID, LISEC 

and Go Green, as well as NYSDOS, Village Parks, Highways and Planning 

Departments. It is important to note that projects along the creek corridor that can 

put citizens in contact with creek waters, such as water sampling, invasive plant 





removal, restoration planting and creek clean-up events, should be conducted only 

after USEPA has agreed that contact with the creek waters does not pose potential 

risk. 

• Establish a program that utilizes classes or clubs associated with local schools to 

collect data and study pollution of the creek. There are numerous academic areas 

that could provide the opportunity for the practical application of scientific 

principles, while advancing environmental protection. These could be integrated 

into the curriculum in a directed research class or an advanced science class. 

Ecological surveys, water quality studies, and the effects of pollution are 

examples of topic areas that could be explored. The Village could supply 

technical support, mapping resources, background information, or contacts with 

individuals or agencies with expertise. 

• Encourage development of civic stewardship activities and programs such as 

storm-drain stenciling, creek clean ups, or other civic-type projects that can be 

designed and implemented by students and may be suited to ecology or civic 

clubs and organizations. These activities could induce environmental stewardship 

by students, or promote leadership and enable the students themselves to foster 

stewardship within the community. The Village could provide support such as 

disposal following clean up activities and providing drainage infrastructure maps 

or other logistical materials. 

Creek Interpretative Signage and Identification 

Signage that provides identification of the creek and a discussion of the importance of the 

waterbodies can aid in public awareness of the significance of individual actions on the 

health of the waters. Signs identifying the location of the Mill Creek at road overpasses 

will build public awareness of their proximity to the creek and its watershed. 


• Expand the Mill Creek tributary identification program. The Village should work 

with assistance from local schools and other local organizations to expand the 

system of signs identifying the creek at road crossings. In addition to signage, 

consider increasing views to the Creek at cross streets including Barnum Avenue 

and Brook Street through measures such as plant pruning and invasive species 

removal. Incorporate creek identification and interpretation signage installation 

into other projects such as Mill Pond shoreline improvements or Barnum Avenue 

flow improvements. 

• Expand the program of strategically located signs, interpreting the historical, 

ecological, and recreational value of Mill Creek to increase public awareness, 

appreciation, and stewardship of the creek and its watershed. Potential locations 

for additional signage include Mill Pond and the vernal stream on the west side of 

Brook Street. 





Task Force Establishment 

Establishment of a task force will provide a mechanism for maintaining momentum and 

implementing the recommendations included in this Plan. Continuing to seek methods to 

move these recommendations forward will in turn lead to significant funding 

opportunities from a variety of programs with the mutual goal of restoring creek habitat 

and water quality improvements. 

Specific Actions 

• Assemble a task force to begin planning for a comprehensive approach to 

addressing the management issues discussed in this Plan. The task force should 

include government representatives, local concerned citizens, business owners, 

and environmental groups. The current Plan advisory committee could serve as 

the basis for the formation of the task force. 

4.1.2 EDUCATION AND OUTREACH RECOMMENDATIONS 

Education and outreach focuses on increasing the community stewardship of the Mill 

Creek natural resources through enhancing public awareness of water quality issues, 

citizens’ roles in reducing pollutant loads and the potential for Mill Creek habitat 

improvements. As a SPDES Phase II MS4, Port Jefferson has begun educational efforts 

through literature distribution and website development under the educational component 

of the Village-wide Stormwater Management Program. The following recommendations 

will further the public awareness of the water quality issues within the Mill Creek 

watershed and promote improved stewardship practices that can result in a reduction in 

the pollutants both generated within the watershed and transported into the creek. 

Neighborhood Stewardship Source Reduction Practices 

The Village should undertake an on-going educational program that focuses on 

developing and disseminating information on methods to reduce neighborhood pollution 

sources. Implementing stewardship best management practices can significantly reduce 

or prevent non-point source pollutants from being deposited on watershed surfaces and 

washed into the creek or drainage systems. 





Neighborhood pollution sources are primarily from five areas: yards and lawns; 

driveways and sidewalks; rooftops; garages; and common open areas. Table 4-1: 

Neighborhood Stewardship - Pollution Source Control BMPs includes best management 

practices for neighborhood stewardship that includes pollutant source reduction practices, 

pollutant impacts, reduction recommendations, and outreach and implementation means. 

Pollution source control BMPs for neighborhood stewardship includes recommendations 

for the following categories found in the Mill Creek watershed: 

• Landscape practices including fertilizer and pesticide usage reductions and IPM 

methods, xeriscaping, landscape buffer and natural shoreline vegetation filter 

restoration, and tree planting 

• Methods to reduce waste material discharges to the creek including yard waste 

composting, hazardous materials disposal procedures, car fluids recycling, pool water 

discharges, and pet waste clean-up regulations and requirements 

• Vehicle and impervious surface maintenance including safe vehicle washing, 

driveways and pavement cleaning, and pavement deicing 

• Sanitary system inspection and maintenance recommendations and methods 

• Runoff reduction and stormwater maintenance recommendations including downspout 

disconnection, stormwater practice maintenance, and storm drain marking 

The following actions include methods and means to distribute educational materials and 

increase public knowledge of pollutant sources and reduction through behavioral 

changes. 


• Develop and disseminate Homeowner Outreach materials that focus on 

stewardship recommendations identified in this Plan. Initial focus should be on 

measures identified to be a high priority for the Mill Creek watershed. 

• Develop a library of educational materials and informational sources for residents 

and businesses. There are numerous sources of information, brochures and flyers 

available on websites through the NYSDEC and the USEPA that can be used to 

provide this information. Additional sources are available for specific 


Pollutant Source 

Reduction 

Stewardship Practice 



Table 4-1 

Neighborhood Stewardship 

Pollution Source Control Best Management Practices 

Description 

Outreach & 

Implementation 

Means 

Land Use 

1 of 8 

Priority Level 

for Mill Creek 

Watershed 

Residential 

Commercial 

Industrial 

Park/Cultiv 

ated Areas 

Municipal 

Pollutant 

Reduced 

Additional 

Information: 

CWP Source 

Control Profile 

Sheets 

H 

Fertilizer Use 

Reduction 

M 

Pesticide Use 

Reduction 

L Xeriscaping 

Impacts: 

• Maintenance practices of lawn and 

landscape areas have potential to 

contribute pollutant loads to surface 

waters. 

Recommendations: 

• Encourage the use of organic and 

slow-release fertilizers and reducing 

the amount of fertilizer application by 

soil testing reduces the potential for 

nutrients to runoff lawns and 

landscaped areas to water bodies. 

Impacts: 

• Maintenance practices of lawn and 

landscape areas have potential to 

contribute pollutant loads to surface 

waters. 


• Encourage the use of safer products 

and reducing the amount of pesticides 

applied by soil testing, IPM and pest 

analysis reduces the potential for 

runoff to water bodies. 

Impacts: 

• Excess irrigation can runoff and carry 

pollutants to waterbodies. 


• Reduce irrigation needs by using 

plant materials appropriate to the site 

conditions, including soil type and 

rainfall amounts, reduces the need for 

• Develop seasonal 

media campaigns and 

education materials. 

• Encourage retail store 

demonstrations and 

educational 

opportunities. 

• Provide free or lowcost 

soil tests. 



educational materials. 

• Encourage retail store 

demonstrations and 

educational 


• Provide local 

opportunities for pest 

and disease 

identification clinics. 


water conservation 


education materials. 

• Plant local 

demonstration 

gardens. 

• Impose mandatory 

X X N, P 

N-1, N-7, MO- 

8 

X X C N-2, MO-8 

X X N, P, C N-3, MO-8


Reduction 




Table 4-1 



Description 

Outreach & 


Means 

Land Use 





Residential 

Commercial 

Industrial 

Park/Cultiv 

ated Areas 

Municipal 

Pollutant 

Reduced 

Additional 

Information: 

CWP Source 


Sheets 

H 

Natural Landscaping 

& Shoreline Filter 

Restoration 

L Tree Planting 

M 

Yard Waste 

Composting 

additional irrigation that can runoff 

sites carrying sediments, fertilizers 

and pesticides to waterbodies. 

Impacts: 

• Lawns adjacent to surface waters 

allow greater runoff than sites 

vegetated with taller materials and 

perennials, shrubs and trees, which 

provide additional absorption. 


• Landscape with taller and native 

materials, especially in natural areas 

along creeks and wetlands to improve 

habitat. 

Impacts: 

• Tree clearing reduces the tree canopy 

that captures rainfall and increases 

surface runoff. 


• Encourage tree-planting programs and 

require new site developments to 

plant trees. 

Impacts: 

• Disposal of yard wastes in creeks, 

wetlands, along curblines, and in 

drainage systems can wash nutrients, 

organic maters and bacteria into 

surface waters. 


• On-site composting or municipal 

outdoor water 

restrictions 

• Develop educational 

materials. 

• Plant local 

demonstration 

gardens. 

• Develop a backyard 

habitat program. 

• Organize native plant 

sales. 

• Distribute native 

seedlings or seed 

mixes. 


materials. 

• Adopt a tree clearing 

ordinance. 

• Undertake a 

municipal treeplanting 

program. 

• Develop an education 

program for 

composting and 

mulching mowers 

usage. 

• Distribute fall leaf 

collection bags. 

• Distribute free or 

X X S, N, P N-4, MO-8 

X X X X S, N, P N-5, MO-8 

X 

S, N, P, 

B 

N-6, MO-8


Reduction 




Table 4-1 



Land Use 

Description 

Outreach & 


Means 





Residential 

Commercial 

Industrial 

Park/Cultiv 

ated Areas 

Municipal 

Pollutant 

Reduced 

Additional 

Information: 

CWP Source 


Sheets 

M 

Soil Erosion 

Repair/Soil 

Reclamation 

collections of bagged materials 

reduce pollutant loads to waterbodies. 

Impacts: 

• Compacted soils and unvegetated 

soils can increase erosion and 

contribute sediment in runoff. 


• Stabilize locations where soils have 

eroded by revegetation or other cover 

materials and stabilization methods to 

prevent further erosion. 

• Due to the age of sections of the 

watershed, soil reclamation of 

compacted soils may be needed to 

improve soil condition to improve 

vegetation viability. 

discounted compost 

bins. 

• Provide regular yard 

waste collection. 

• Increase access to 

municipally 

composted materials. 

• Ban collection of 

grass clippings. 


materials. 

• Provide free or 

reduced cost soil 

testing. 

• Provide access to free 

compost and to 

technical assistance. 

• Enforce ESC, water 

quality and/or 

nuisance ordinances. 

X X X X X 

S, N, P, 

B 

N-7, N-8, MO- 

8


Reduction 




Table 4-1 



Description 

Outreach & 


Means 

Land Use 





Residential 

Commercial 

Industrial 

Park/Cultiv 

ated Areas 

Municipal 

Pollutant 

Reduced 

Additional 

Information: 

CWP Source 


Sheets 

H 

Septic System 

Maintenance 

L 

Pool Water 

Discharges 

M Safe Vehicle Washing 

Impacts: 

• Improperly operating septic systems 

can contribute to bacteria and nutrient 

loads in waterbodies. 

• Factors linked to system failure 

include small lot sizes, aging systems, 

poor soils, high water tables, and 

proximity to waterbodies. 


• Develop and distribute educational 

materials on the impacts of 

improperly operating systems. 

• Implement programs to require 

regular inspection and repair of 

systems. 

Impacts: 

• Discharging chlorinated pool water 

into surface waters can be toxic to 

aquatic life. 


• Discharge only when necessary, allow 

chlorine to break down over 7 to 10 

days prior to discharge, and discharge 

to a pervious area if possible. 

• Filter backwash should be directed 

toward a septic tank or pit. No 

discharge to surface waters. 

Impacts: 

• Washing vehicles on impervious 

surfaces allows detergents to runoff 

and pollutant waterbodies. 

• Encourage connection 

to WWTP when 

possible. 


materials and media 

campaigns. 

• Require mandatory 

system inspection and 

performance 

certification. 

• Offer free or reducedcost 

septic system 

inspections. 

• Provide educational 

materials on proper 

discharge. 

• Develop ordinance 

and fines for 

improper discharge. 


materials. 

• Implement a storm 

drain marking 

X N, P, B N-9, MO-8 

X C 

X X X X X 

S, H, N, 

P, M, C 

N-10, H-15, 

MO-8 

N-11, MO-8


Reduction 




Table 4-1 



Description 

Outreach & 


Means 

Land Use 





Residential 

Commercial 

Industrial 

Park/Cultiv 

ated Areas 

Municipal 

Pollutant 

Reduced 

Additional 

Information: 

CWP Source 


Sheets 

M 

M 

M 

Driveways & 

Pavement Sweeping 

Pavement De-icing 

Use Reduction and 

Modification 

Household Hazardous 

Waste Collection 

Program And 


• Encourage use of phosphorus-free 

and/or non-toxic detergents and 

cleaning products or use of a 

commercial car wash that recycles 

wash water. 

• Require charity car wash events take 

place on self-contained pavements. 

Impacts: 

• Hosing of pavements and use of leaf 

blowers to dispose of sediments in 

gutters carries sediments and 

pollutants to waterbodies. 


• Sweeping or vacuuming and 

disposing of sediments in trash 

removes pollutants from runoff. 

Impacts: 

• Indiscriminate application of de-icing 

materials increases sediments, toxins 

and nutrients carried to surface 

waters. 


• Minimize de-icing materials by 

clearing pavements manually and 

using environmentally (and pet) 

friendly products sparingly. 

Impacts: 

• Improper disposal can result in 

pollutants discharges to surface 

waters. 

program. 

• Modify code or 

ordinance nuisance 

codes. 


materials. 

• Conduct media 

campaign. 

• Provide contractor 

training. 


materials and 

informational 

brochures at point-ofsale. 

• Develop media 

campaign. 

• Increase number of 

collection events 

X X 

S, H, N, 

P, M, 

N-12, MO-8 

X X S, C N-13, MO-8 

X H, C, M N-14, MO-8




Reduction 


Table 4-1 



Description 

Outreach & 


Means 

Land Use 




Residential 

Commercial 

Industrial 

Park/Cultiv 

ated Areas 

Municipal 

Pollutant 

Reduced 

Additional 

Information: 

CWP Source 


Sheets 

Recycling Recommendations: 

• Collection of these materials can 

reduce the amount of materials 

illegally disposed of on streets and 

into storm drains. 

M Car Fluids Recycling 

M 

M 

Downspout 

Disconnection 

Impervious Cover 

Reduction 

Impacts: 

• Improper storage and changing of 

automotive fluids on driveways and 

streets can result in spills and illegal 

dumping of waste fluids. 


• Encourage use of commercial 

automotive operations that require 

stringent control and recycling 

practices. 

• Provide information on BMPs and 

local laws for at home operations. 

Impacts: 

• Numerous roof drains on residential 

and commercial properties discharge 

to gutters or pavement. 


• Encourage installation of drywells, 

rain gardens or rain barrels that allow 

for infiltration or reuse of roof 

drainage on-site to reduce volume of 

flow into street systems. 

Impacts: 

• Impervious cover increases watershed 

runoff. 


and/or locations. 

• Provide directory to 

HHW collection 

locations. 


brochure for point-ofsale 

locations. 

• Implement storm 

drain marking 

program. 

• Develop directory of 

disposal locations. 


materials. 

• Provide discounted 

rain barrels. 

• Construct 

demonstration 

projects. 


materials. 

• Modify local land use 

ordinances to require 

X X M, H, C N-15, MO-8 

X X 

S, N, P, 

M, B 

N-16, MO-8 

X X X X S, M N-17, MO-8 

6 of 8


Reduction 




Table 4-1 



Description 

Outreach & 


Means 

Land Use 





Residential 

Commercial 

Industrial 

Park/Cultiv 

ated Areas 

Municipal 

Pollutant 

Reduced 

Additional 

Information: 

CWP Source 


Sheets 

H Pet Waste Clean-up 

H 

Stormwater Practice 

Maintenance 

• Reduce pervious surfaces by 

eliminating unused pavements, 

converting to pervious pavements 

and/or increasing natural landscape 

areas. 

Impacts: 

• Pet waste from public streets and 

from lands adjacent to surface waters 

is carried to surface waterbodies and 

is potentially a major source of 

bacteria and pathogens in the harbor. 


• Educate public on the levels of 

pathogens pet waste contributes to 

waterbodies and enforce of pet waste 

codes in effect in all municipalities. 

• Provide additional educational efforts 

for property owners adjacent to 


• Increase enforcement of pet waste 

disposal ordinances. 

Impacts: 

• On-site drainage systems that are not 

inspected and maintained may not be 

providing pollutant removal. 


• Conduct maintenance activities to 

ensure that the stormwater practices 

are operating properly. 

• Provide maintenance reminders due 

to ownership and management 

a percentage of 

pervious pavement. 

• Increase code 

enforcement. 

• Develop media 

campaign and 

educational materials. 

• Install pet waste 

stations/bags and 

signage. 


drain marking. 


materials. 

• Distribute 

maintenance 

reminders. 

• Provide civic 

association seminars. 

• Implement inspection 

requirements. 

X N, P, B N-18, MO-8 

X X X 

S, N, P, 

M, B 

N-19, MO-8



Table 4-1 



Land Use 


Reduction 


Description 

Outreach & 


Means 




Residential 

Commercial 

Industrial 

Park/Cultiv 

ated Areas 

Municipal 

Pollutant 

Reduced 

Additional 

Information: 

CWP Source 


Sheets 

changes. 

H 

Bufferscaping along 

creek, wetland and 

drainage swales 

H Storm Drain Marking 

Impacts: 

• Lawns and pavement extending to 

creek edges allow nutrients to drain 

into waterbodies. 


• Planting of taller grasses and natural 

vegetation along creeks, waterbodies 

shoreline and swales provides 

filtering of pollutants in runoff prior 

to entering waterbodies and improves 

habitat. 

Impact: 

• Residents may dump materials in 

storm drains, not understanding where 

storm drains discharge. 


• A program to physically identify 

drainage inlets that carry runoff the 

surface waters can reduce use of 

inlets for oils, pet waste, debris and 

trash disposal. 


materials. 

• Provide civic 

association seminars. 

• Adopt a buffer 

requirements 

ordinance. 

• Inspect and enforce 

buffer boundary 

requirements 

• Post stream boundary 

signs. 


drain marking 

program - this can be 

conducted with local 

community members 

under municipal 

oversight. 

X X X X 

X 

S, H N, 

P, B, M 

S, M, B, 

H, C 

Source: Center for Watershed Protection. 2005. Urban Subwatershed Restoration Manual No. 8 Pollution Source Control Practices. February. 

Center for Watershed Protection. 2008. Urban Subwatershed Restoration Manual No. 9 Municipal Pollution Prevention/ Good Housekeeping Practices. September. 

(See complete manuals at www.cwp.com) 

Pollutant Legend: S - sediments; H – hydrocarbons; N – nitrogen; P – phosphorus; B – Bacteria (fecal coliform), M – Metals, C – Chemicals/Pesticides/Toxin 

Underlined Pollutant is a major contributor. 


N-20, MO-8 

N-21, MO-8




information such as Cornell University’s New York State IPM Program website 

(www.nysipm.cornell.edu) for fertilizer and pesticide use reduction and The 

Nature Conservancy Invasive Species Task Force for plant materials. 

• Post educational materials and web sources on Village Stormwater Webpage 

• Include educational materials in Village newsletters and for publication in local 

newspapers. 

• Additional opportunities to distribute education materials for neighborhoods 

stewardship are available through local businesses. Businesses can be encouraged 

to carry appropriate informational materials and alternative products. For 

example, plant nurseries, home and garden centers, and lawn care businesses 

provide point-of-sale opportunities to educate residents on fertilizer and pesticide 

reduction and IPM practices. Some businesses may also be able to offer 

educational seminars on IPM and BMP’s and the effects of indiscriminant and 

overuse of fertilizers and pesticides on the watershed, creek and harbor. 

Business and Commercial Property Education and Outreach Opportunities 

Village educational efforts should include watershed businesses and commercial property 

owners whose daily activities can contribute to stormwater pollution through site runoff. 

The Village should provide educational materials to local businesses and commercial 

property owners to educate them on how their daily activities can contribute to surface 

water pollution. Many of the neighborhood stewardship practices discussed above and 

on Table 4-1, such as landscape maintenance, waste disposal, sanitary systems inspection 

and drainage infrastructure maintenance, are also appropriate for local businesses and 

commercial properties. Specific businesses and commercial properties within the 

watershed may also be hotspots that generate increased pollution loads, such as 

businesses with vehicular service facilities, chemical storage area, or dumpsters, or may 

be the sites of illicit discharge points. Table 4-2: Hotspot Pollution Prevention - 

Pollution Source Control BMPs is a table of hotspot pollution prevention practices that 

includes pollution impacts, improvement and outreach recommendations and 

implementation methods that can reduce the level of pollutants generated on commercial 

properties and carried to the creek. 


• Include local businesses and commercial property owners in the neighborhood 

stewardship educational programs as described above. 





• Develop and disseminate reminders to local commercial businesses that are 

identified as potential hotspots to remind businesses that maintenance measures 

on their properties can reduce the pollutant amounts generated on these sites and 

carried to surface waters. The outreach materials can be specific to Port Jefferson 

or can utilize standardized brochures developed by the NYSDEC and the USEPA 

for stormwater programs. The material should be distributed to appropriate 

commercial businesses and made available at public locations such as libraries. 

Materials can also be published in local newspapers, community newsletters and 

the Village website. 

• Work with local businesses and commercial property owners to locate and 

mitigate illicit discharges to the creek and the Village storm drainage system. 

Municipal Employee Educational Training Programs 

The Village’s daily operations can result in pollution deposits on Village streets and 

properties. Proper maintenance practices can significantly reduce or prevent sediment 

deposits and good housekeeping programs can remove any deposits prior to washing into 

the creek. Village personnel, including those charged with developing and implementing 

Village operations and policies that can affect the watershed, should receive regular 

education on the impacts of non-point source pollution and mitigation methods. 


• Establish an ongoing stormwater pollution prevention educational program for 

Village employees including personnel from Highways, Engineering, Parks, 

Planning, Environment and Development, and Public Safety. The educational 

effort should include those employees working in the field such as inspectors, 

maintenance crews and field workers to ensure that the regulations and practices 

pertaining to stormwater pollution management are uniformly understood and 

enforced. New York Sea Grant operates a program entitled Nonpoint Education 

of Municipal Officials (NEMO) - Water Quality Education that introduces the 

concept of nonpoint source pollution to local officials and provides local 

governments with tools for improving water quality that can be used to implement 

this program. This effort can be coordinated with the municipal educational 

efforts required under the MS4 program and the required adoption of municipal 

operation and maintenance and good housekeeping programs. 

• Educate Village inspectors and field personnel to identify and respond to 

hazardous waste spills in the watershed and on the proper notification procedure 

requirements. 



Reduction 




Table 4-2 

Hotspot Pollution Prevention 


Land use 

Description 

Outreach & 


Means 





Residential 

Commercial 

Industrial 

Park/Golf 

Course 

Municipal 

Pollutant 

Reduced 

Additional 

Information: 

CWP Source 


Sheet 

H 

Vehicle 

Maintenance and 

Repair , Fueling, 

Washing, Storage, 

and Loading Areas 

L Outdoor Storage 

M 

Spill Prevention and 

Response 

Impacts: 

• Vehicular facilities such as gas 

stations, service stations, bus depots, 

fleet operations, car washes and 

vehicle parking areas have the 

potential to contribute sediments, 

hydrocarbons, chemicals and toxins to 



• Proper secondary containment and 

facilities operation can significantly 

reduce polluted runoff from these 

sites. 

• All facilities should follow applicable 

laws for containment and clean up. 

Impacts: 

• Outdoor storage of landscape 

materials, chemicals and fertilizers 

may allow spills and runoff into storm 

system. 


• Protect materials stored outdoors 

from rainfall and in areas with 

secondary containment systems. 

Impacts: 

• Without a system to report spills, they 

may go unreported and undetected. 


• Development of spill prevention 

• Employee training. 

• Conduct site 

inspections and code 

enforcement. 

• Separate containment 

system installation 

and maintenance. 

• Proper disposal 

methods. 

• Employee education. 

• Minimize outdoor 

storage. 

• Site inspections and 

code enforcement. 

• Separate secondary 

containment system 

installation and 

maintenance. 

• Maintain updated 

spill prevention and 

response plans as 

required by NPDES. 

• Require employee 

X X X X 

X X X 

X X X 

S, N, H, 

C, M 

S, N, P, 

H, C 

N, P, H, 

C 

H-1, H-2, H- 

3, H-4, H-5, 

H-7 

H-6 

H-7


Reduction 




Table 4-2 



Description 

Outreach & 


Means 

Land use 





Residential 

Commercial 

Industrial 

Park/Golf 

Course 

Municipal 

Pollutant 

Reduced 

Additional 

Information: 

CWP Source 


Sheet 

L 

H 

L 

Dumpster and 

Waste Management 

Construction 

Project Erosion and 

Sediment Controls 

Building 

Maintenance or 

programs for commercial and 

industrial sites, such as gas stations 

and utility facilities, and roadways. 

Impacts: 

• Rainfall into dumpsters can carry 

bacteria, nutrients, chemicals and 

debris to runoff. 

• Improper disposal can result in 

sediments and trash being carried into 

storm system. 


• Require proper dumpster operation 

and placement on a self-contained 

pad. 

Impacts: 

• Construction projects that disturb the 

ground surface areas have the 

potential to allow erosion and 

sediment runoff. 


• Sediment and erosion control 

measures should be employed for all 

private projects as well as for 

municipal projects, such as road 

reconstruction and utility repair, to 

prevent sediment runoff to water 

bodies. 

Impacts: 

• Construction projects that do not 

training. 


training. 

• Require secondary 

containment. 

• Establish proper 

operation procedures. 

• Conduct site 

inspections and code 

enforcement. 

• All construction sites 

should be required to 

prevent off-site 

erosion and provide 

sediment and runoff 

control. 

• State mandated 

SWPPP plans are 

required for sites 

disturbing over one 

acre. 

X X 

N, P, B, 

C 

H-8 

X X X X X S, C H-9 


materials to licensed X X X X x 

S, M, H, 

C 

H-10, MO-2




Reduction 


Table 4-2 



Description 

Outreach & 


Means 

Land use 




Residential 

Commercial 

Industrial 

Park/Golf 

Course 

Municipal 

Pollutant 

Reduced 

Additional 

Information: 

CWP Source 


Sheet 

Remodeling Control disturb surface area still have the 

potential to allow pollutant runoff 

through the use of hazardous 

materials, improper operations. 


• Require proper control measures to 

prevent pollutant runoff. 

contractors or 

distribute with 

permits. 

• Employee training 

program. 

• Require proper 

operation procedures. 


Center for Watershed Protection. 2008. Urban Subwatershed Restoration Manual No. 9 Municipal Pollution Prevention/ Good Housekeeping Practices. September. (See complete manuals 

at www.cwp.com) 







4.1.3 POINT AND NON-POINT SOURCE MANAGEMENT AND CONTROL 


Non-point source pollution is pollution from diffuse sources that cannot be attributed to 

one activity. This is typically the condition of urban runoff, where the contaminated 

stormwater that washes off roads, parking lots, pavements and lawns is carried into 

waterbodies. Point source pollution discharges occur at a single location, such as 

discharges from a specific roadway or municipal storm drain outfall. Not all urban runoff 

flows through storm drain systems before entering waterbodies, some may flow directly 

into waterbodies. Because this runoff is not caused by an easily identified and regulated 

activity, urban runoff pollution sources are difficult to control and are often treated as 

nonpoint sources as municipalities work to abate them. Section 4.1.2 identified 

recommendations to reduce the levels of pollution generated in the watershed through 

educational programs that focus of behavioral changes of landowners within the 

watershed. In addition, municipalities may adopt laws and regulations, such as erosion 

and sedimentation control regulations, which will result in a reduction of pollutants 

deposited within a watershed. 

The following recommendations identify methods to mitigate point and non-point sources 

of pollution within the watershed. Management recommendations include municipal 

programs and operational measures that can be implemented to reduce the pollutants on 

public surfaces from entering drainage systems and maintaining operational infrastructure 

systems. Structural pollution mitigation and control recommendations include physical 

alteration and construction projects that can be installed to remove the pollutant loads 

entering surface waters. Specific target projects are included in Section 4.2 Structural 

Pollution Mitigation of this Plan. 

Municipal Pollution Prevention and Good Housekeeping Program 

Proper operational and maintenance practices can significantly reduce pollutant-laden 

sediment deposits on watershed surfaces and can remove pollutant deposits prior to 

washing into the creek. A Village Pollution Prevention and Good Housekeeping program 





is required under the SPDES MS4 Phase II program. Table 4-3: Municipal Pollution 

Prevention and Good Housekeeping - Pollution Source Control BMPs includes the 

components of a Municipal Pollution Prevention and Good Housekeeping program. The 

following specific actions include recommendations for implementing the stewardship 

practices within the Mill Creek watershed. 


• Drainage Structure Maintenance Practices. During the mapping of the 

watershed drainage infrastructure, numerous structures were found to be filled 

with sediment, significantly reducing the system capacity and potentially 

increasing street flooding during significant rainfall events. Inspection and 

cleaning of drainage structures (and stormwater management practices such as 

WQIs when installed) should be conducted on a regular basis. Lack of 

maintenance reduces system capacity allowing flow volumes and pollutants to 

overflow into the creek, resulting in increases in flooding, pollutant deposits and 

erosion. The Drainage Structure Maintenance Program should include the 

following components 

• Develop a systematic maintenance program to clean debris from all 

drainage structures in the watershed. The Tables in Appendix A identify 

the structures filled with sediment and requiring cleaning. This work has 

been identified as Target Project 1 in Section 4.2.3 of this Plan, which 

includes a detailed description of the proposed work. Because a large 

portion of the watershed is within a hazardous waste plume, sediments in 

the drainage structures should undergo sampling and lab analysis prior to 

removal and disposal to determine if the sediments contain hazardous 

materials. 

• Identify funding sources for equipment purchases and personnel increases 

necessary to maintain drainage infrastructure. Review the feasibility of 

developing a maintenance agreement with other municipalities to share 

equipment and costs. 

• Develop a system for mapping all newly installed drainage structures in 

the Village and adding structure information to the Tables included in 

Appendix A. Detailed information on structure location, size, depth and 

connectivity is necessary for the development of a maintenance program. 

• Develop a program to use the excel tables (and GIS when available to the 

Village) to track cleaning schedules and identify areas that require 

maintenance. As the program is implemented, patterns for required 

maintenance should emerge and the maintenance schedules modified 

accordingly. 



Reduction 




Table 4-3 

Municipal Pollution Prevention and Good Housekeeping 


Land use 

Description 

Outreach & 


Means 





Residential 

Commercial 

Industrial 

Park/Golf 

Course 

Municipal 

Pollutant 

Reduced 

Additional 

Information: 

CWP Source 


Sheet 

M 

H 

Street Repair and 

Maintenance 

Street Sweeping 

Operations 

Impacts: 

• Deteriorated street surfaces can cause 

increased sedimentation. 

• Regular maintenance activities 

without proper BMPs can increase 

pollutants that can be carried in runoff 

to surface waters. 


• Applicable BMPs and erosion and 

sedimentation control measures should 

be used to prevent pollution deposits 

and runoff. 

Impacts: 

• Sediments on streets contribute 

significant sediment and hydrocarbon 

load to surface waters. 


• Municipal programs to clean streets 

can be adjusted to focus on watershed 

streets particularly after winter storm 

events when salt and sand materials 

have been utilized. 

• Establish and enforce 

employee pollution 

prevention program 

training. 

• Undertake annual 

street repair projects. 

• Require erosion and 

sedimentation control 

measures. 

• Establish and enforce 

employee pollution 

prevention training. 

• Adjust sweeping 

schedule to follow 

snowfall events in 

watershed areas. 

X 

X 

S, H, C, 

N, P, M 

S, H, M, 

B 

MO-3 

MO-4


Reduction 




Table 4-3 



Land use 

Description 

Outreach & 


Means 





Residential 

Commercial 

Industrial 

Park/Golf 

Course 

Municipal 

Pollutant 

Reduced 

Additional 

Information: 

CWP Source 


Sheet 

M 

H 

M 

Develop safe 

pavement deicing 

program 

Storm Drain 

Maintenance 

Stormwater Hotline 

Response 

Impacts: 

• Indiscriminate or over application of 

de-icing materials increases 

sediments, toxins and nutrients 

carried to surface waters. 


• Alternative de-icing methods and 

materials exist than can reduce salt 

and sediment usage. 

• Develop and implement a BMP 

program for winter roads clearing. 

Impacts: 

• Lack of maintenance results in storm 

water structures that are full of 

sediment and debris which increases 

surface flows and pollutant 

discharges. 


• Regular maintenance operations 

maintain a functioning storm system 

and reduce pollutant loads. 

• Tracking cleans can identify a pattern 

of underperforming systems. 

Impacts: 

• The ability to report spills and illicit 

discharges can reduce the amount of 

pollutants that enter surface waters. 


• As required by the NYSDEC SPDES 

• Provide employee 

BMPs training for 

winter road 

maintenance 

operations. 

• Investigate methods 

and materials to 

reduce salt and sand 

usage. 

• Develop a program to 

regularly clean storm 

basin. 

• Track storm system 

maintenance in 

accordance with MS4 

program 

requirements. 

• Provide education 

materials for spill and 

illicit discharge 

reporting. 

X X X X 

X S, C 

X S, H MO-5 

S, H, C. 

B 

MO-6


Reduction 




Table 4-3 



Land use 

Description 

Outreach & 


Means 





Residential 

Commercial 

Industrial 

Park/Golf 

Course 

Municipal 

Pollutant 

Reduced 

Additional 

Information: 

CWP Source 


Sheet 

H 

H 

Stormwater 

Management 

Practice 

Maintenance 

Parking Lot 

Maintenance 

Phase II Program Nassau County 

maintains a telephone number to 

report suspected illicit discharges. 

• The NYSDEC spill hotline is 800- 

457-7362. 

Impacts: 

• Improper maintenance of new 

alternative storm management practices 

such as water quality inlets, 

bioretention basin, will reduce the 

amount of pollutant load captured. 


• As new alternative storm 

management practices are installed, 

such as water quality inlets, 

bioretention basin, education on the 

additional and modified maintenance 

practices will be required. 

Impacts: 

• Maintenance operations such as 

power washing, resealing, and 

resurfacing can deliver sediments, 

nutrients, hydrocarbons to drainage 

systems. 


• Removal of loose debris before 

cleaning, covering drainage inlets, 

working in dry weather and avoiding 

use to soaps and cleaning agents can 


training and seminars 

on maintenance 

operations as new 

stormwater practices 

are implemented. 

• Provide handouts to 

licensed contractors 

or with permits 

issued. 

X 

X X 

S, N, P, 

M 

S, N, P, 

H 

MO-9 

H- 11



Table 4-3 



Land use 




Residential 

Commercial 

Industrial 

Park/Golf 

Course 

Municipal 

Pollutant 

Reduced 

Additional 

Information: 

CWP Source 


Sheet 


Reduction 


Description 

Outreach & 


Means 

H 

Landscape and 

Grounds 

Management 

H Employee Training 

reduce pollutant discharges. 

Impacts: 

• Intensively managed turf areas may 

have poor management practices that 

generate pollutant such as sediments, 

nutrients, pesticides. 


• Follow turf and landscape best 

management practices and IPM 

practices to reduce pollutant levels. 

Impacts: 

• All stormwater infrastructure 

components require proper operation 

and maintenance by staff to ensure 

proper operation and pollution 

reduction. 


• Providing employee with proper 

training that describes both the correct 

BMP procedures and the impacts of 

improper operations can reduce 

pollutant discharge to surface waters. 

• Require lawn care 

contractor licensing. 

• Distribute educational 

materials with license 

renewal. 


training. 


training programs and 

seminars. 

x x x x S, N, P 

X 

S, N, P, 

H, B, M, 

C 

H-12, H-13, 

MO-7 

MO-10 


Center for Watershed Protection. 2008. Urban Subwatershed Restoration Manual No. 9 Municipal Pollution Prevention/ Good Housekeeping Practices. September. (See complete manuals 

at www.cwp.com) 

Priority Level: H – High; M – Moderate; L - Low 







• Implement a storm drain stenciling program that identifies all inlets that 

drain to surface waters in the watershed. School and community groups 

may be able to assist with installation under the public outreach 

component of this plan. The Village should develop a procedure for 

volunteer groups to follow to identify and record the locations of the 

stenciling on Village drainage tables and for SPDES Phase II reporting. 

• Street Sweeping and Road Deicing Operation Practices. Sediments are 

heavily deposited on streets during certain months of the year, particularly in the 

winter months during road deicing operations. Modification to the street 

sweeping program and changes in deicing materials can result in significant 

reduction in the pollutants that enter the creek. 

• Review the street sweeping program and determine if modifications are 

necessary, such as focusing on roads that drain to the creek, and 

conducting road sweepings in early spring and following major winter 

storm events to remove sediments prior to be deposited into drainage 

infrastructure or the creek in stormwater runoff. 

• Investigate alternative road deicing materials that can be less harmful to 

water quality for use in the watershed. 

• Pavement Repair and Maintenance Program. Pavements that are allowed to 

deteriorate can be the sources of increased sedimentation in the watershed. 

• The Village pavement repair program should include consideration of the 

condition of pavements where runoff washes into drainage systems that 

discharge to surface waters when determining the pavement repair 

ranking. 

• All construction operations should be required to utilize BMPs that will 

prevent pollutants from being washed into drainage systems and surface 

waters. 

Hotspot Pollution Prevention and Mitigation 

Hotspots are locations known to generate higher levels of pollutants or have increased 

potential for spills, leaks or illicit discharges of pollutants. Hotpsots typically occur on 

commercial, industrial, institutional, municipal and/or transport-related land uses. 

Common hotspot operations are vehicle operations, outdoor materials storage, waste 

management, physical plant maintenance and large turf or landscape areas. Proper 

maintenance practices can significantly reduce the deposit of pollutants at hotspots 

locations while mitigation actions can prevent pollutants from being washed offsite into 

the creek. Table 4-2: Hotspot Pollution Prevention - Pollution Source Control BMPs 





includes hotspot pollution prevention practices. The following specific actions include 

recommendation for implementing a Hotspot Pollution Prevention measures. 


• Map locations of hotspots within the watershed. 

• Identify changes in operational procedures that will result in a reduction in the 

pollutants that are deposited of land surfaces within the watershed. Examples of 

operational modifications include prohibiting activities such as vehicle washing 

and equipment fueling in locations that drain to a surface water outfall, providing 

spill clean–up training, and requiring proper waste disposal. 

• Identify locations where structural modifications such as secondary containment 

and water quality inlets are necessary to prevent discharge to surface waters. 

Illicit Discharge Detection and Response (IDDR) Program 

The NYSDEC SPDES MS4 program and the Village regulation adopted as a requirement 

of that program require that the Village conduct Illicit Discharge Detection and Response 

(IDDR) investigations for creek discharges. Sources of illicit discharges can include 

sanitary wastewater, effluent from septic tanks, commercial car wash wastewaters, oil 

disposal, radiators flushing, laundry wastewater, spills from road accidents, and improper 

disposal of automobile and household toxics materials. 


• Provide educational training to Village employees on identification of illicit 

discharges and procedures for investigation 

• Include illicit discharge contact and educational information on the Village’s 

Stormwater webpage. 

• Develop a documentation system for incorporating the illicit discharge reporting 

and investigation findings into the data required for the annual stormwater 

reporting requirements. 

• Investigate a potential illicit discharge from a commercial business located on the 

west side of the creek on the south side on West Broadway. 

Pollution Mitigation Projects 

The impervious character of this densely developed residential and commercial 

watershed results in a water quality volume flowing into Mill Creek that carries high 

pollutant loads that affect the creek and Port Jefferson Harbor’s water quality. 





Undertaking an on-going program to install measures that remove pollutants will 

significantly reduce the pollutant loads contributed to waterbodies and result in improved 

water quality over time. NYSDEC requires that stormwater treatment from new 

development remove 80% of the suspended organic and inorganic material and 40% of 

total phosphorus, while redevelopment projects must attempt to reach those goals to the 

maximum extent practicable. As the TMDL discussed in Section 2.3.3 identified the 

need to reduce harbor pathogen levels by 94%, priority should also be given to measures 

that will result in the highest levels of pathogen reduction. Section 4.2 of this Plan and 

Table 4-4 identify structural pollution mitigation projects for implementation. 


• Prior to undertaking road reconstruction projects, this Plan should be reviewed to 

identify recommended improvements for pollution mitigation to incorporate into 

the reconstruction projects. Reconstruction projects should mitigate the impacts 

of the storm runoff through the installation of drainage infrastructure designed in 

accordance with the requirements of NYS Stormwater Management Design 

Manual. 

• Monitor the success of the structural control measures in meeting the NYSDEC 

water quality goals. Data collection should include analysis of improvements to 

water quality and hydrology. Sampling and testing of water quality prior to 

implementation of improvements will provide background data and provide a 

level of comparison to assess improvements. 

• Require new development and redevelopment projects to follow the requirements 

of the NYS Stormwater Management Design Manual for installation of drainage 

infrastructure and enforcement regulations for on-site containment of site runoff 

in accordance with Chapter 213 Stormwater Management of the Village Code. 

Drainage Infrastructure Investigations 

Further investigation should be peformed for locations where the extent and alignment of 

storm systems could not be verified including additional field investigation, review of 

historic documents, interviews with Village road personnel and residents, and conducting 

testing programs such as ink-dye testing or video inspection. 






• Investigate the culvert extending south from Reach 1 near Village Hall to the 

Barnum Road and Main Street intersection. Due to the lack of surface access 

structures, actual piped connections to this culvert could not be assessed via visual 

inspection. This may require ink-dye testing or video inspection to complete. 

• Investigate the potential to re-pipe the eastern portion of Reach 1 (the eastern 

municipal parking lot) to an outfall east of the West Broadway and Main Street 

intersection. If re-piped, a water quality inlet must be installed to reduce the 

pollutant load from the outfall. This may require ink-dye testing to complete. 

• Investigate the connection from the Reach 4 drainage infrastructure to Reach 2. 

The piping may extend across private property and an easement should be 

established. This may require ink-dye testing to complete. 

• The NYSDOT drainage system along Route 25A (Main Street) is interconnected 

with the Village drainage system. Route 25A system reconstruction could affect 

village property owners if modifications to the system reduce Village drainage 

connections. Implementation of storm drainage improvements on roads with 

interconnected storm systems should be coordinated with all municipalities prior 

to construction. 

Impervious Surface Reduction 

Reducing the amount of paved surface within the watershed allows additional 

precipitation to infiltrate into groundwater and reduces concentrated flow volumes into 

the creek. 


• Develop recommendations on ways to decrease impervious surface in the 

watershed. Recommendations could include the use of gravel surfaces, planted 

islands that contain runoff or porous pavements. 

• Identify locations to install and test various porous pavements. Location selection 

should focus on lower elevations in the watershed where depth to groundwater 

precludes structural infiltration practices and on those areas with less intensive 

usage during inclement weather such as recreational facility parking lots. 

Regularly inspect and evaluate these products for further use. 

• Acquire environmentally sensitive undeveloped watershed parcels to reduce 

future development and the associated increase in impervious surfaces. Specific 

parcels identified for acquisition are included in the prior Section 4.1.1 - Property 

Acquisition, Land Preservation and Land Use Modification. 





On-site Sanitary System Management Program 

Discharges from improperly functioning individual sanitary systems have been identified 

as a conduit by which pollutants are discharged and eventually impact surface 

waterbodies. There is currently no program to educate homeowners and commercial 

businesses about the proper use of on-site septic systems and the need for periodic 

maintenance for effective operation. There is also no requirement that systems be 

inspected to confirm proper operation. 


• The Village should encourage connection to the wastewater treatment plant 

(WWTP) for all properties with the Village sewer district. This action requires an 

initial determination of unconnected properties within the sewer district. 

• Initially, for those properties not connected to the WWTP, the Village should 

establish an educational program to increase voluntary inspection and 

maintenance of on-site systems. 

• A more effective maintenance approach should be investigated, such as the 

establishment of a program requiring periodic inspection and recommendations 

for system pump-out. One approach is to require pump out, inspection and 

necessary maintenance and repairs be performed at the time of real property 

transfers, major redevelopment or following a certain period of years. This 

approach requires implementation beyond the watershed boundary and would 

most likely need to be developed and overseen in conjunction with Suffolk 

County Department of Heath Services (SCDHS) as they currently approve 

installation of sanitary systems and licenses installers. Inspections and repairs 

should be performed by licensed private inspectors and contractors. This program 

would require development of a training program to license private system 

installers to conduct system inspections, perform repairs and certify system 

operations. 

Law and Regulation Enforcement 

Section 3.3 of this Plan outlined the existing local Village regulations that can influence 

water quality and pollutant loads generated in the watershed. Enforcement of the codes is 

necessary to ensure that the regulations are followed. 






• Field investigation identified several activities within the watershed where 

additional effort may be required to ensure compliance with Village regulations. 

Additional employee educational training may be required to increase code 

compliance. The following is brief list of observed activities that may not be in 

conformance with Village regulations: 

• Wetland and creek setbacks – encroachments observed 

• Sedimentation and erosion control – unvegetated property draining to creek 

• Illicit discharges – pipe outfall from building to pavement discussed earlier 

• Trash dumping and removal – observed in rear of several properties along 

creek 

• Environmental quality review – insufficient review of new development 

impacts on wetlands 

• Pet waste disposal – dog walking along creek observed 

Modification of Existing Laws and Regulations 

Section 3.3 of this Plan outlined the existing local Village regulations that can influence 

water quality and pollutant loads generated in the watershed and identified locations in 

the code where modification of regulations may be necessary to protect water quality and 

reduce pollutant loads. 


• Chapter 211-6 of the Village Code allows connection to storm sewers for 

buildings and premises within the Village. This regulation may be incompatible 

with Chapter 213 Stormwater Management, which requires reductions in site 

runoff volumes and pollution discharges, and should be reviewed by the Village 

attorney for consistency. 

• Chapter 220 of the Village Code, Subdivision of Land, should be modified to 

clarify that the Village can access the easement along brooks, water-bearing 

ditches and dry streambeds to improve drainage and habitat and that property 

activities shall not impact the easement or reduce creek flow capacity. 

• In Chapter 220 of the Village Code, Subdivision of Land, the Village should 

clarify that the 20’ access strip is required on both banks and that the access strip 

is to be vegetated with appropriate native or non-invasive species to provide 

filtering, reduce erosion and increase habitat. 





4.1.4 WATER QUALITY AND POLLUTION REDUCTION MONITORING 


Means to monitor and assess changes in water quality and pollution levels over time are 

important in determining the success of the Plan recommendations in improving water 

quality, reducing pollutant loads and improving habitat and to determine if further 

modifications or additional and alternative actions are necessary to reach the water 

quality goals. 

Water Quality Sampling and Monitoring Program 

In order to assess actual changes in pollutant loads in the creek, the Village should 

establish a Mill Creek watershed sampling and analysis program. To determine the 

improvements achieved, a baseline measure of actual pollutant loads in runoff from the 

Mill Creek watershed should be conducted. Monitoring should include analysis of flow 

condition. Both dry-weather and wet-weather sampling and analysis should be conducted 

either monthly or seasonally to assess the watershed conditions. Sampling locations 

should include creek flow from the harbor outfall (OT32), the culvert flow (OT39), the 

creek on the west side of Barnum Avenue, and Mill Pond. Existing monitoring data from 

the USEPA plume investigation and harbor monitoring can serve as a starting point, with 

new monitoring data including sampling for the pollutants typically associated with point 

and nonpoint sources from roads, urban areas and parks, such as suspended solids, 

hydrocarbons, nitrogen, phosphorus, and fecal coliform, included as part of this program. 


• This sampling and monitoring program can be coordinated with Village 

volunteers or through a school programs. If the program is conducted through 

volunteer or school efforts, standard procedures and practices that ensure 

consistency and future value of the data should be followed as described in the 

USEPA publication Volunteer Stream Monitoring: A Methods Manual (EPA 841- 

B47-003). This publication details practices of quality assurance, quality control 

and quality assessment measures for water quality conditions of stream flow, 

dissolved oxygen, temperature, pH, turbidity, phosphorus, nitrates, total solids, 

conductivity, total alkalinity, and fecal bacteria. 

• The Village should establish a central database to maintain the inventory of 

testing results. 





4.2 SITE-SPECIFIC MITIGATION & TARGET PROJECT 


The following paragraphs describe potential structural pollutant abatement alternatives 

that are available to address the issues identified in the Mill Creek watershed and 

recommendations for locations of specific target projects. 

4.2.1 STRUCTURAL BMPS 

The structural BMPs described below have been selected based on the site characteristics 

of a developed, suburban area with an extensive road system and landscaped properties, 

where retrofit and reconstruction actions will account for the majority of measures 

proposed. Table 4-4: Reach Stormwater Assessment & Structural Mitigation 

Recommendations includes the information used to select recommended practices from 

the BMPs described below for each area identified. 

Structural BMP selection is dependent upon the identified pollutants of concern. Road 

runoff with heavy sediment and hydrocarbon loads requires different mitigation measures 

than residential areas with fewer roadways but more landscaped areas and domestic pets 

that produce increased soluble pollutant loads of phosphorus, nitrogen and fecal bacteria. 

As the majority of the Mill Creek watershed is fully developed, the requirements of 

NYSSMDM Chapter 9 for retrofit and redevelopment projects were considered when 

selecting the stormwater management practices for the target projects for this watershed. 

The identified recommended practices have been selected in accordance with the 

NYSSMDM (2010) and NYS Verified Proprietary Stormwater Management Practices 

(May 2009). If an undeveloped site is identified for development, the requirements of 

NYSSMDM Chapter 5 will be utilized to select stormwater mitigation measures. 

Unit costs for the structural stormwater management practices (SMP) described in this 

section have been estimated to provide a cost comparison basis for review of the 

implementation actions. These unit costs are for construction of the SMP and do not 




Table 4-4 

Reach Stormwater Assessment and Structural Mitigation Recommendations 

Drainage Area 

Piped 

Outfalls 

(CA #) 

REACH 1 - TOTAL 32,33 

System 

Drains all reaches and 

drainage areas to 

harbor 

Discharge 

Condition 

Tide gate is not 

functioning 

Acreage 

Land Use 

Drainage 

Area WQV - 

CF 

Roadway 

Road 

ROW 

WQV - CF 

433.5 820,265 168,590 

Concerns 

Due to large reach land area, see 

drainage areas below for issues 

and concerns 

Municipal 

Jurisdiction 

MITIGATION ACTIONS 

See Drainage Areas Below 


Considerations 

ALTERNATIVE/ADDITIONAL 

MITIGATION ACTIONS 

See Drainage Areas Below 


Considerations 

Drainage Area 1A - 

Village Parking 

34 Piped to Outfall 34 

Outfall thru 

bulkhead 

2.5 

Business and 

Parking 

District 

11,208 NA 0 

Potential Interconnection to NYS 

system and other outfalls, Highly 

impervious, tidal flow backs up 

into pipe and floods parking area. 

VPJ 

System repiping to harbor outfall with WQI. 

See TARGET PROJECT 2 - Eastern 

Municipal Parking Lot Storm Drainage 

Improvements. 

Needs further investigation 

of drainage system and 

repiping to harbor 

OT 34 WQI, Upgradient LBs, 

Require private property on-site 

containment 

Tidal backflow in pipe, 

Depth to GW 

Drainage Area 1B - 


Drainage Area 1C - 


36 Pipe to Outfall 36 

38,39 

Pipes to Culvert 

Outfall 39 

Outfall 

Collapsing 

Subsurface 

Culvert - 

Condition 

Unknown 

8.8 

12.0 

Business and 

Parking 

District 

Business and 

Parking 

District 

39,451 NA 0 Outfall at collapsing bulkhead, VPJ WQI at outfall 

41,055 NA 0 

Connections to culvert below 

grade w/o access 

VPJ 

WQIs at pipe connections to culvert 

bulkhead and piping 

reconstruction 

Investigation of pipe 

connection in culvert 

needed, No access from 

surface. 

Upgradient infiltration structures, 


containment 



containment 

Depth to GW 

Depth to GW 

Drainage Area 1D - 

Prospect, South, 

Spring, Tuthill 

NA 

Piped discharge to 

outfall to culvert near 

Maple Place 

Underground 

connection to 

culvert 

46.4 

Residential 

with 

commercial 

on 25A 

107,145 

6525 x 40' 

aver 

19,851 

Surface runoff drains from Village 

road into NYSDOT Rt 25A 

drainage infrastructure then to 

Village culvert 

VPJ, 

NYSDOT 

WQIs at pipe connections to culvert at Maple 

and pipe near Tuthill 




surface. Rte 25A drainage 

NYSDOT jurisdiction 


WQI in subdrainage area, 


containment 

Drainage Area 1E - 

Jones/Old Post 

South 

Drainage Area 1F - 

School 

Drainage Area 1G - 

Markham & Barnum 

@ Maple 

Drainage Area 1H - 

Commercial @ W. 

Broadway 

NA 

NA 

NA 

27, 35, 

37, 40 

Piped system along 

Main Street Route 

25A into culvert at 

Barnum / Main Street 

intersection 

Underground 

connection to 

culvert 

Piped system 

Overflow to pipe 

connects to 184 & 185 

system in road 

at 25A 

Piped discharge to 

outfall to culvert near 

Maple Place 

Several piped and 

surface flows into 

creek 

Underground 

connection to 

culvert 

340.5 

15.5 

Residential 

with 

commercial 

on 25A 

School 

Property 

735,753 

36,150 x 

varied width 

30'-70' 

141,277 

11,195 NA 0 

5.4 Residential 15,952 7,461 

Possible IDs 2.4 Commercial 10,759 NA 0 

Surface runoff drains from Village 

road into NYSDOT Rt 25A 

drainage infrastructure to Village 

culvert. Inwood Road system 

failing. Belle Terre Rd structures 

sediment filled. Franklin St 

residence connection to street 

system. 

School should be able to contain 

WQV at minimum on site. 

Connection to culvert could not be 

field observed. 

Individual commercial properties 

have piped or surface flow to 

creek. Some potential illicit 

discharges. 

VPJ, 

NYSDOT 

VPJ 

VPJ 

Large WQI near Barnum/ 25A intersection ay 

beginning of culvert, upgradient infiltration 

structures. See TARGET PROJECT 6 - 

Old Post Road WQV Infiltration & 

TARGET PROJECT 3 - Inwood and Myrtle 

Avenues Storm Drainage Improvements. 

Biofiltration rain garden 

WQI at pipe discharge to culvert 

WQI in subdrainage area, 

Need space to locate WQI, 

Require private on-site 

Need property for 

Rte 25A drainage NYSDOT 

containment, property acquisition recharge basin 

jurisdiction 

for infiltration 

School site offers 

educational opportunity 




surface. 

Require private on-site containment or WQIs. Village Hall WQI offers 

Village Hall WQI 

educational opportunity 

On-site containment 

Upgradient infiltration structures. 


containment 


containment or extended 

detention w/ overflow 

Depth to GW. Code 

conflicts 

REACH 2 - Barnum 

Avenue 

2,26,28,2 

9,31 

surface flow to piped 

system to Barnum 

Avenue outfalls. Also 

several surface flows 

into channel 

Flooding at 

bridge reported, 

heavy flows 

observed on 

Caroline Avenue 

30.4 

Residential, 

open space 

58,274 3950 x 50 15,512 

Flow blockage at Barnum creating 

flooding issues, pond 

contamination reported 

VPJ 

Property acquisition and stormwater 

bioretention system. WQI at outfall 28 and 

31. require private on-site containment or 

WQI. See TARGET PROJECT 5 - Barnum 

Avenue Stormwater mitigation, Habitat 

Restoration & Bridge Replacement. 

Property acquisition costs, 

Bridge condition, USEPA 

plume remediation work 

Upgradient infiltration structures 

REACH 3 - Brook 

Road to 

Longfellow 

NA 

Surface flow to piped 

system to Old Mill 

Pond Reach 2. Dry 

stream channel 

Vernal stream 

on private 

property 

44.1 Residential 75,165 5600 x 50 21,992 

Flooding occurs near Mill Pond. 

Groundwater appears near 

surface in the vicinity of the pond 

VPJ 

Clean and redevelop stream channel to 

carry low volume storm flow with check 

dams. See TARGET PROJECT 4 - Brook 

Road Drainage Improvements, Habitat 

Restoration and Pond Dredging. 

Confirm easement access. 

USEPA plume remediation 

work 

Upgradient infiltration structures 

REACH 4 - Brook 

Road to West 

Broadway 

NA 

Groundwater seeps to 

Brook Road piping to 

Outfall 2 in Reach 2 

Pipe connection 

not confirmed - 

thru private 

property 

9.9 Residential 16,844 900 x 33 2,333 

Pipe flow beneath private property 

to main creek 

VPJ 

Property acquisition and stormwater wetland 

or bioretention system in Reach 2 see above 

Property acquisition costs, 

USEPA plume remediation 

work 

Revegetate swale to provide 

filtering. 

Groundwater seeps 

are on private property




include costs for design and engineering, land acquisition, demolition, permitting or 

unusual site conditions. The median pollutant removal rates and construction costs are 

based on data provided in the Center for Watershed Protection’s Urban Subwatershed 

Restoration Series Manual 3 – Urban Stormwater Retrofit Practices – Appendices 

(August 2007), unless noted otherwise. 

Stormwater Infiltration Practices 

Infiltration practices are designed to capture, retain, and infiltrate runoff through the soil 

layer where pollutant removal processes occur. Infiltration practices have moderate to 

high removal capabilities for particulate and soluble urban pollutants. Design parameters 

can enhance the removal rates, but particles can rapidly clog some infiltration methods. 

A means to remove the accumulated sediments should be addressed prior to installation. 

Infiltration in underground leaching wells or structures, leaching basins, and recharge 

basins can be utilized in upgradient sections of urban and developed areas where there is 

sufficient separation to groundwater to provide WQV runoff reduction and impervious 

cover disconnection. Porous pavements provide an alternative infiltration practice 

generally restricted to smaller areas of low-volume parking, particularly where depth to 

groundwater precludes other infiltration practices. Due to the lack of available land to 

site recharge basins and aboveground structures, the infiltration practice that will be most 

applicable to the Mill Creek watershed is alternative underground infiltration systems. 

For infiltration systems, the cost to install leaching basins was utilized to estimate the 

target project costs in Section 4.4.3. The cost is based on professional knowledge of bid 

costs for this type of work and is estimated upon the installation of a 10’ diameter 

structure. Each installed leaching basin, including asphalt pavement and concrete curb 

restoration, averages $8.75 per cubic foot of storage volume. Newer shallow horizontal 

systems should have slightly higher construction costs and are good alternatives where 

depth to groundwater is a design issue. Infiltration practices are estimated to have 

median removal rates of 90% TSS, 65% TP 40% TN, 90% FC and 90% hydrocarbons. 

The shallow horizontal systems provide similar removal rates. 





The cost for construction of a recharge basin to infiltrate runoff to groundwater is 

estimated at $9.00 per CF of volume stored. These estimates do not include the cost of 

acquiring land to site the basin. A recharge basin that infiltrates the WQV is estimated to 

have median removal rates of 90% TSS, 65% TP, 40% TN, and 40% FC and 90% 

hydrocarbons, the same as for the infiltration system discussed above. 

Stormwater Filtering Practices 

Filtering practices are designed to detain, filter and release stormwater through porous 

materials, such as sand, soil, or organic materials. During the filtering process, sediment 

particles and attached pollutants, such as hydrocarbons, are removed. Removal of 

soluble pollutants, such as nitrogen and phosphorus, is limited by the filtration period and 

filtering material. Filtering systems include bioretention basins, sand or organic filters, 

dry swales and wet swales that can detain, filter and release the WQSE. Green roofs are 

an alternative means of filtering and reducing urban runoff. Filtering practices, such as 

bioretention basins, may be applicable in several locations within the watershed where 

open spaces exist including parkland and lawn areas on the school grounds that are not 

sports fields or facilities. 

An average cost for bioretention basins in small urban retrofit areas (less than a half acre 

of contributing drainage area) is estimated at an average range of $35 per cubic foot 

treated. Bioretention basins are used to remove both nutrients and bacteria from runoff. 

A bioretention basin requires a means for removal of sediment be sited prior to the basin 

to prevent sediments from clogging the filtering medium. Bioretention basins are 

estimated to have median removal rates of 60% TSS, 5% TP, 45% TN, 50% FC and 90% 

hydrocarbons. 

Open Channels 

Open channels are designed to capture and treat the WQV within dry or wet cells formed 

by check dams or other means that contain the runoff within the swale. There are 





segments of Mill Creek within Reach 3 and Reach 4 that have the potential to provide 

treatment of the WQV in open channels. 

The cost for swale improvements to improve filtering capacity and slow velocity is 

estimated to be $15.00 per cubic foot stormwater treated. Swales are estimated to have 

median removal rates of 80% TSS, 5% TP, 55% TN, and 80% hydrocarbons. The same 

data found that swales did not remove bacteria. 

Constructed Ponds and Wetlands 

Constructed stormwater ponds and wetlands provide moderate to high soluble and 

particulate pollutant removal capacity through both settling and biological uptake. 

Construction of wetlands and ponds require the availability of significant public land area 

that is a level grade. In order to implement this SMP, the Village will need to acquire 

property. 

Alternative Management Practices (Water Quality Inlets And Other Proprietary 

Practices) 

With the increased awareness of the effect of storm runoff on the surrounding 

waterbodies, the development of numerous technologies to provide pollutant removal 

from runoff has ensued. Many of the new practices are designed for retrofit or 

redevelopment projects or as pretreatment devices in new development and are best 

suited for urban areas and road ROWs where sediment and hydrocarbons are of greatest 

concern. Locations where soluble pollutants, such as fertilizers and pesticides, are 

prevalent may not be suited to many of these devices. As most projects within the 

watershed will be considered retrofit or redevelopment projects with little available lands 

for siting SMPs, these measures are applicable for use throughout the Mill Creek 

watershed 

The NYSDEC verifies that proprietary WQIs practices, including hydrodynamic systems, 

wet vaults, media filters and underground infiltration systems, meet the performance 





criteria for redevelopment applications. Verifications are based on existing stormwater 

management practice evaluation systems such as the USEPA Environmental Technology 

Verification Program, the Technology Acceptance Reciprocity Partnership Protocol 

(TARP), the New Jersey Corporation for Advanced Technology (NJCAT), and the State 

of Washington Technology Assessment Protocol - Ecology (TAPE). It is important to 

note that many of the manufacturers of these practices claim removal of several 

pollutants including sediments, hydrocarbons/oil and grease, nutrients, bacteria and 

metals; however, most of the technologies have only been verified for sediments removal. 

Use of these technologies for removal of other pollutants will require selection of a 

specific verified unit. Some of these technologies may also be used as an interim 

measure to reduce pollutant levels in stormwater runoff until long-term solutions can be 

implemented. 

WQIs costs vary widely based on type, manufacturer, size and site conditions. The 

Federal Highway Administration publication “Stormwater Best Management Practices in 

an Ultra-Urban Setting: Selection and Monitoring” provides costing information based 

on impervious acres. According to the data included in that document, the adjusted 2010 

cost per impervious acre is estimated to be $7,920 to $21,440 for the WQI. For the 

conceptual construction cost estimates included in this document, an average cost of 

$18,000 per impervious acre is assumed. Installation costs will vary based on site 

conditions, but are estimated to be 50% the cost of the unit. The pollutant and percentage 

of removal of WQI varies dependent the manufacturer and the types of pollutants that the 

system is designed to remove. For this plan, a hydrodynamic system is assumed with a 

removal rate of 80% for sediments and hydrocarbons. These units do not provide 

removal of nutrients and bacteria. A media filter would have removal rates of 85% TSS, 

60% TP, 30% TN, 40% FC, and 85% hydrocarbons but can generally only handle flows 

from smaller individual sites. 





The general categories of new technology are: 

Hydrodynamic Separators. These devices, a common form of water quality inlet 

(WQI), remove sediments and attached hydrocarbons using a swirl concentrator or 

other means of separation. These systems can allow a high flow storm event to 

bypass the swirl. These devices are suitable for ultra-urban retrofit sites and have the 

longest history of use of the emerging technologies. References to WQIs in this Plan 

are typically referring to this type of unit unless noted otherwise. 

Wet Vaults. Wet vaults, a form of WQI, are watertight structures that include a 

permanent water pool and promote settlement sediments and separation of oils 

through detention and the use of internal baffles, screens or chambers. These systems 

can be designed offline to allow a high flow storm event to bypass the system. These 

devices are suitable for ultra-urban retrofit sites. 

Underground Infiltration Systems. These systems can be standard leaching well 

systems or prefabricated pipe and vault systems that capture and infiltrate runoff. 

When designed as offline systems, these devices have the potential to perform at an 

acceptable treatment level when designed to the technical specifications of standard 

infiltration systems and can be considered a standard infiltration practice when they 

incorporate all required design guidance and requirements as defined in the 

NYSSMDM. 

Media Filters. Media Filters (MF), a form of WQI, are flow through, surface or 

subsurface practices that contain filter beds of adsorptive media that promote settling 

of sediments as well as adsorption and absorption of other pollutants that are attracted 

to the characteristics of the specific filter media. The proprietary filter media can be a 

combination of materials, including fabrics, organic medium, sand, or charcoal, that 

can trap particulates and soluble pollutants dependent on the filtration period. These 

systems can be designed offline to allow a high flow storm event to bypass the 





system. These devices are suitable for ultra-urban retrofit sites and have the potential 

to remove bacteria or nutrients from runoff. 

Additional Water Quality Treatment Practices 

The following practices have not been included as an alternative practice in the 

NYSSMDM. Catch basin inserts have been used in some locations to provide interim 

pollutant removal capacity until long-term solutions can be implemented. Disinfectants 

and oxidants systems are not addressed in the NYSSMDM and have rarely been used on 

the east coast to treat stormwater runoff for bacteria removal. The need to meet TMDL 

reduction may increase consideration of these systems in the future. 

Catch Basin Insert. Catch Basin Inserts (CBI) contain a pollutant removal medium 

that is suspended in existing basins. Stormwater is treated as it passes through the 

insert. CBIs may be suitable for small drainage areas and ultra-urban retrofit sites. 

The type of pollutant removed varies by specific insert and include both particulate 

and soluble pollutants. CBIs are approved for use in other states where most units 

have only received third-party evaluation for sediment removal, although 

manufacturers may identify specific units or components that provide additional 

pollutants removal. The Abtech Ultra-Urban Filter with Smart Sponge Plus 4 

Antimicrobial (Abtech filter) was only catch basin insert identified as receiving third 

party evaluation for E. coli and enterococcus removal with tested efficiencies of 51% 

and 43% respectively. Proper disposal of contaminated materials removed from the 

CBI during of the filters is necessary. 

Catch basin inserts (CBI) are best used to provide short-term pollutant removal until 

permanent measures can be installed, as the units require frequent cleaning and 

replacement. The cost to install a catch basin in suitable structure is $1000 - $2500 

per unit-installed dependent on the type and manufacturer of the unit. $1800 per unit 

was used for this estimate. For this plan, a CBI is assumed with a removal rate of 

70% TSS only. 





Disinfectants and Oxidants Systems 

A second additional practice is disinfectant methods using ultraviolet or ozone 

treatment for the removal of bacteria from stormwater. These practices require that 

additional pollutant removal practices as discussed above be implemented as well to 

move sediments, hydrocarbons and nutrients. If bacteria are identified at levels where 

installation of other practices will be ineffective in lowering bacteria levels, then 

these practices could be considered. 

As TMDLs are adopted that require efforts to remove substantial percentages of 

pathogens (94% in Port Jefferson Harbor) they may be used more often. UV systems 

remove 99% of bacteria. They do not remove any other pollutants and require 

sediment removal prior to passing the UV to operate properly. The construction cost 

for a system is estimated to be $7.25 per cubic foot of water treated, as given in a 

presentation by Fuss & O’Neil in February 2010. Costs do not include land 

acquisition for siting the facility, design and engineering, permitting, operating, 

power, staffing or maintenance. 

4.2.2 SITE-SPECIFIC STRUCTURAL MITIGATION RECOMMENDATIONS 

The general site-specific mitigation recommendations have been identified based on 

review of the existing conditions within the watershed. The drainage systems were 

discussed in detail in Section 3.0 Existing Drainage and Habitat Conditions Assessment. 

The watershed is a densely developed area with little available land for location of 

mitigation actions such as wetlands and bioretention basins. No recharge basins are 

located within the watershed. The majority of the existing drainage systems’ catch basins 

and drainage inlet structures have limited storage capacity. Where storage capacity 

exists, structures were often found to be filled with leaves, sediments and floatable debris. 

In addition to preventing structure inspection and data collection during the watershed 

assessment phase the filled structures reduce system capacity increasing the likelihood 

that the system will overflow and cause flooding. 





Due to the large size of the Reach 1 watershed area, Reach 1 was divided into drainage 

areas for the pollutant load calculations in Section 3.4. The drainage areas are streets 

sections that drain to a specific outfall or pipe segment and have been defined by 

reviewing the area topography, in conjunction with existing drainage structures and 

piping. These drainage areas are used to identify the WQVs and upgradient mitigation 

measures within Reach 1. 

Table 4-4: Reach Stormwater Assessment and Structural Mitigation Recommendations 

identify each reach and drainage area by the identification number on Maps 6, 6A and 

6B. The table includes street locations, drainage system, discharge condition, area, land 

use WQV, road area, concerns, jurisdictions, recommended mitigation action(s) and 

target projects with implementation concerns, as well as potential alternative or additional 

mitigation actions. 

The structural pollution mitigation recommendations of this section, including the target 

projects identified in Section 4.2.3 are shown on Map 8 - Target Projects and Mitigation 

Recommendations. Section 4.2.3 of this Plan offers a detailed discussion of six 

mitigation projects identified to be Target Projects. The additional mitigation project 

recommendations are conceptual and the mitigation measures may be modified based on 

additional site conditions identified during further site analysis that is beyond the scope 

of this Plan. 

4.2.3 TARGET MITIGATION PROJECT RECOMMENDATIONS 

From the reach and drainage area findings and the general structural pollution mitigation 

recommendations identified in Section 4.2.2 above, six target projects were identified. 

The target projects are projects that have a high potential to improve the water quality of 

the runoff from the watershed. A detailed assessment of the work required and the design 

and construction costs for each of these target projects was conducted. The following 





paragraphs include a discussion of the six target structural mitigation projects identified 

for the Mill Creek watershed along with estimated costs and implementation 

considerations. 

The order in which projects and actions are initiated should be based on several key 

components including, but not limited to, the following: 

• Severity of the problem 

• Goals and objectives of the project and the assumed or known effectiveness of the 

project or action 

• Technical feasibility 

• Timing 

• Planned or necessary road reconstruction work 

• Availability of funding 

• Other planned local and regional planning efforts and implementation projects 

All of the target projects address requirements of the MS4 program minimum measures 

for stormwater control and are in accordance with the recommendations of the Long 

Island Sound Coastal Management Program and the Comprehensive Conservation and 

Management Plan for the Long Island Sound. 

Target Project 1. 

Drainage Infrastructure Maintenance Program 

Target Project 1 recommends cleaning of the entire watershed stormwater system and 

purchase of a vacuum truck to allow the village to develop an annual maintenance 

program to maintain the integrity of the system. This target project is proposed because 

the field assessment of the drainage infrastructure identified the large number of drainage 

structures that are filled with sediments, such that limited capacity remains. At the same 

time, the Village has documented increased flooding complaints for the Barnum Avenue 

and Brook Road areas near Mill Creek that may be due in part to the lack of drainage 





system capacity. In addition, the USEPA has completed extensive studies of the 

hazardous waste plume that extends to Old Mill Pond. Storm drainage structures 

throughout the Mill Creek watershed should be cleaned as soon as possible. 

Because a large portion of the watershed is within a hazardous waste plume, drainage 

structure sediments will require sampling and lab analysis to determine if hazardous 

materials are in the sediments. The Village should retain an environmental firm to 

conduct the sampling and oversee the lab analysis procedures. The project cost estimate 

assumes that 50% of the structures will be uncontaminated, 40% will be contaminated 

with non-hazardous materials and 10% will be contaminated with hazardous materials. 

Disposal costs increase dependent on the level of contamination. As an initial estimate, 

the proposed work should include testing sediments from 25% percentage of the 

structures to determine the sediment disposal requirements and costs for disposal, but 

additional testing could be required based on the initial findings. 

Because of the immediate need for structure maintenance, it is proposed that the Village 

contract with a maintenance firm to conduct the initial round of sediment removal and 

legal disposal operations once the materials have been sampled and tested. 

As a second phase of this target project, and in order to maintain the drainage structures 

in the future, the Village should purchase a vacuum truck capable of removing sediments 

from Village drainage structures, provide the Highway Department staff with vehicle 

operation training, and develop a maintenance evaluation and scheduling program. The 

maintenance program will allow the Village to identify structure cleaning needs, 

completion dates and to develop maintenance schedules based on the data collected. As 

the Village will need to purchase, staff and educate personal on vehicle operation, this 

project is proposed as a long-term solution to maintaining drainage infrastructure that 

would follow the contracting for emergency needs discussed above. 





The estimated project cost for this sampling, testing and contractor cleaning of the 

drainage infrastructure is $ 395,400. The estimated project cost for the purchase of the 

vacuum truck, staffing training and a scheduling program is $330,000. 

Implementation of the project discussed above will reduce the pollutant loads entering 

Mill Creek and the harbor by allowing more of the runoff to be infiltrated in the existing 

drainage structures and reducing erosion caused by surface flooding. Implementation of 

the first component will result in an immediate pollutant load reduction and the second 

component, the purchase of the vacuum truck, will maintain the system in operating 

condition. In addition, as other water quality control measures are installed, the Village 

will have the equipment immediately available to maintain these structures in operating 

condition. This target project is a continuing step toward improving the water quality of 

the Mill Creek and Port Jefferson Harbor under the Village MS4 program. 

The environmental benefit of the proposed project will be a reduction of the quantity of 

runoff that is reaching Mill Creek and Port Jefferson Harbor and an improvement in the 

quality of the water that does reach the surface water because the maximum extent 

practicable of the WQV will be contained in existing upgradient leaching structures. This 

maintenance program will focus on the drainage systems within the Mill Creek watershed 

including those structures located within the area of the hazardous waste plume that 

extends to Old Mill Pond 


Eastern Municipal Parking Lot Storm Drainage Improvements. 

Target Project 2 is recommended because Outfall 34 is an existing drainage pipe outfall 

to Mill Creek that drains a piped system that extends to a municipal parking lot on the 

east side of Main Street (Route 25A). This parking lot is located behind the businesses 

on Main Street, East Main Street and East Broadway. The area is drained by several 

infrastructure systems that are piped to drain to OT34 or directly to the harbor via other 





outfalls. This parking lot floods regularly due to the high surface water levels and the 

tidal influence into the piped system. 

Target Project 2 proposes to complete the storm drainage infrastructure mapping for the 

systems that drain this downtown municipal parking lot, develop a proposed design that 

alleviates parking lot flooding and installs additional leaching basins or WQIs, and 

constructs the proposed design. The total project cost is estimated to be $640,000 for 

design, engineering, project construction and construction inspection. This project can be 

constructed in two components as follows; 1) structure cleaning, testing and WQI 

installation ($360,000) and 2) leaching pools installation and OT34 disconnect 

($280,000). 

Implementation of this project will reduce the pollutant loads entering Mill Creek and the 

harbor by increasing the runoff infiltrated in cleaned, reconstructed or additional leaching 

structures. The expected environmental benefits will be a reduction of the pollutant loads 

reaching Mill Creek and the harbor and an improvement in the quality of the runoff that 

does reach the surface waters. 


Inwood Avenue and Myrtle Avenue Storm Drainage Improvements 

Target Project 3 is recommended because an existing leaching system on Inwood Road 

and Dickerson Court that was designed to contain 2” of stormwater from road runoff is 

not properly collecting and infiltrating the runoff to groundwater. The improper 

operation is causing the runoff to overflow the leaching system and surface drain along 

Village streets until it is collected into the piped storm system that discharges into Mill 

Creek. This target project proposes to assess the problems of the improperly functioning 

drainage system, develop a proposed reconstruction design and construct the 

improvements. The existing system will be excavated, structures cleaned, the 

infrastructure assessed, a design developed, plans, specifications and cost estimate 

prepared, the proposed design constructed and the construction inspected. The total 





estimated project cost is $290,000 for design, engineering, project construction and 

construction inspection. 

Implementation of the project discussed above will reduce the pollutant loads entering 

Mill Creek and the harbor by increasing the runoff infiltrated in cleaned, reconstructed or 

additional leaching structures and by the use of a water quality inlet to reduce the 

pollutant load from the first flush runoff. The expected environmental benefits will be a 

reduction of the pollutant loads reaching Mill Creek and the harbor and an improvement 

in the quality of the runoff that does reach the surface waters. 

Target Project 4, 

Brook Road Drainage Improvements, Habitat Restoration and Pond Dredging. 

Target Project 4 is envisioned to provide a comprehensive and coordinated approach to 

solving water quality impairments and restoring aquatic habitat by reducing pollutants in 

the surface runoff WQV, removing sediment deposits, increasing storage capacities, 

removing invasive plant material and reestablishing buffers of native species. 

This target project recommends replacement of piping under Brook Road, installation of 

a WQI or upgradient infiltration structures, pond dredging, phragmites and invasive 

species removal and shoreline and pond edge restoration. Under this project, the Village 

will assess Mill Pond, the creek segments adjacent to the Pond and the existing road 

drainage; develop proposed improvement designs for pollution removal, phragmites 

removal and habitat restoration; prepare plans, specifications and cost estimate; construct 

the proposed design; and provide inspection services during construction. 

This project will reduce flooding in the Brook Road area by improving creek flow and 

reducing the WQV and pollutant discharges through the installation of mitigation 

measures. The total project cost is estimated to be $700,000 for design, engineering, 

project construction and construction inspection; however, this component can be 

implemented in two phases if necessary to meet available funding allowances. 






harbor by allowing a larger percentage of the runoff to be filtered through pollution 

mitigation measures or infiltrated to groundwater before entering the Creek. 

The expected benefits of this proposed project will be mitigation of pollution loads that 

reach Mill Creek and Port Jefferson Harbor, improved creek flow and reduced flooding. 

In addition, phragmites removal and revegetation with native species appropriate to the 

hydrologic condition will improve the habitat along the creek. 


Barnum Avenue Stormwater Mitigation, Habitat Restoration and Bridge Replacement. 

Target Project 3 is envisioned to provide a comprehensive and coordinated approach to 

solving water quality impairments and restoring aquatic habitat by reducing pollutants in 

the surface runoff WQV, removing sediment deposits, increasing storage capacities, 

removing invasive plant material and reestablishing buffers of native species. 

The existing conditions assessment completed for this Plan identified flooding issues on 

Barnum Avenue. The Village Highway Department identified a possible blockage in the 

culvert under Barnum Avenue as a potential source of the flooding. Due to the age of the 

bridge, no data or design plans are available. Prior to attempting to remove any blockage 

and possibility damaging or destabilizing the existing structure, the Village needs to 

assess the condition of the existing bridge and/or culvert structure. The Village should 

develop designs for the installation of pollutant mitigation measures in the vicinity of 

Barnum Avenue to reduce pollutant discharges into the creek. These measures may 

include an upgradient bioretention basin on existing park property, infiltration structures 

and/or WQIs on Barnum Avenue. 

This target project includes the replacement of the Barnum Avenue bridge/culvert, 

installation of water quality improvement measures; and Phragmites removal and habitat 





restoration. This work will include necessary permitting, design development and 

studies, preparation of plans, specifications and cost estimate, project construction, and 

construction inspection. The final project will control existing flooding in the Barnum 

Avenue area by improving channel capacity or reducing storm discharges and will reduce 

pollutant discharges through the installation of mitigation measures. The total project 

cost is $1,265,000 for design, engineering, project construction and construction 

inspection. This component can be implemented in multiple phases to meet funding 

allowances. The project components would be as follows: install water quality inlet(s); 

construct bioretention pond; install upgradient infiltration structures; creek shoreline 

restoration; and bridge replacement. 


harbor by allowing a larger percentage of the runoff to be filtered through pollution 

mitigation measures or infiltrated to groundwater before entering the Creek. 

The expected benefits of this proposed project will be mitigation of pollution loads that 

reach Mill Creek and Port Jefferson Harbor, improved creek flow and reduced flooding. 

In addition, phragmites removal and revegetation with native species appropriate to the 

hydrologic condition will improve the habitat along the creek. 


Old Post Road WQV Infiltration 

Target Project 6 recommends the installation of upgradient infiltration structures to 

reduce the runoff volume from the upper limits of the watershed. This target project is 

recommended because the subdrainage area of Reach 1 that drains to Old Post Road is 

116.9 acres in size and has an estimated road runoff WQV of 39,869 CF. Existing 

drainage infrastructure is limited to 16 unconnected structures located on Old Post and on 

Dark Hollow Roads. Surface runoff enters the piped system at inlets 158 and 159 and is 

carried to OT 39. Installation of a series of upgradient infiltration structures along Old 

Post Road, Dark Hollow Road, Liberty Avenue and Willis Avenue will allow the WQV 





of runoff from the road section to be stored upgradient and infiltrated to groundwater. 

The estimated construction cost for this project is $350,000 for design, engineering, 

project construction and construction inspection. This project can also be implemented 

on a per structure basis as funds become available. 

Implementation of this target project will reduce the pollutant loads entering Mill Creek 

and the harbor by allowing a larger percentage of the runoff to be infiltrated to 

groundwater before entering the system that will carry the larger storm volumes to the 

creek. The expected benefits of this proposed project will be mitigation of pollution 

loads that reach Mill Creek and Port Jefferson Harbor. 





5.0 CREEK CORRIDOR RESTORATION 

The Mill Creek WAC identified improvement and restoration of the creek corridor as the 

overall goal of this Plan. The restoration recommendations address improvements for 

creek flow, public access, vegetation and habitat, and public stewardship. It is important 

to consider a coordinated approach between water quality improvements discussed in 

Section 4.0 and creek restoration improvements presented in this section as the two are 

inextricably linked. Healthy habitat is dependent on adequate water quality, and water 

quality is influenced by the presence and biological integrity of wetland and riparian 

habitats. The creek corridor restoration recommendations are shown on Map 9.0. 

Corridor restoration includes several components discussed in general in the following 

paragraphs. Specific location for the restoration recommendations are described by creek 

reach in Table 5.1: Creek Corridor Restoration Recommendations and shown on Map 9: 

Creek Corridor Restoration Recommendations. The corridor restoration and protection 

recommendations include flow improvements, sediment removal, shoreline stabilization, 

invasive plant removal, riparian buffer improvements, stewardship opportunities, 

instream habitat assessment and potential improvements for wildlife. 

Creek Flow Restriction Removals and Tidal Flow Improvement Recommendations 

Natural tidal movement and creek flow that previously existed in the watershed have 

been altered by human activities including, but not limited to, road construction, sewer 

force main crossing, shoreline hardening, storm drainage and filling of wetlands. Flow 

and tidal movement restrictions degrade vegetative communities and habitat. Increased 

velocities causes erosion and increases overbank flooding conditions during storm events. 

Specific flow restrictions were identified at the tide gate to the harbor, at the sanitary 





sewer force main crossing and at the Barnum Avenue culvert. Opportunities to improve 

creek flow and remove tidal restriction are identified in numerous locations on Table 5-1. 

Specific Action 

See items numbers 1, 2, 6, 12, 16, 28 and 33 on Table 5.1. 

Sediment Removal 

Lack of drainage infrastructure to remove sediments before storm runoff reaches the 

creek along with the flow restrictions discussed above has resulted in heavy sediment 

deposits along the entire creek length. Specific locations that have the heaviest deposits 

are immediately south of Route 25A, at the culvert discharge to the creek in the rear of 

Village Hall (OT39), at Barnum Avenue, in Mill Pond and in the vernal stream along the 

west side of Brook Road. The recommendations to install structures to prevent sediment 

deposits into the creek along with cleaning existing structures and removal of deposits in 

the creek will improve the creek flow and habitat potential. In many cases, the sediment 

deposits have allowed stands of phragmites to establish along the creek corridor. 

Removal of sediments should be to a depth that will allow removal the phragmites root 

system as well. 


See items numbers 3, 10, 12, 22, 24, 26, 29 and 30 on Table 5.1. 

Shoreline Stabilization 

Filling that creates steep creek banks in concert with increased storm flows from the 

watershed have resulted in locations along the creek where the shoreline is eroding. 

Creek flow has increased in volume and velocity because of human activities including, 

but not limited to, road and impervious pavement construction, shoreline hardening, 

storm drainage outfalls and filling of wetlands. Increased flow volume and velocity 




Table 5-1 

Creek Corridor Restoration Recommendations 

Item No. 

Creek Restoration 

Recommendation 

Improvement Benefits Implementation Considerations 

REACH 1 – PORT JEFERSON HARBOR OUTFALL TO BARNUM AVENUE 

1. Restore flood gate function 

2. 

3. 

4. 

Daylight creek segment through waterfront 

parking lot 

Dredge sediment from reach segment south 

of West Broadway 

Remove phragmites from creek segment 

south of West Broadway 

Restoration of floodgate function will reduce flooding 

caused by improper function that is allowing high tides to 

back up into Mill Creek and into OT34 creating flood 

conditions in the eastern municipal parking lot and at 

Barnum Avenue. 

Daylighting will create a connection between the harbor 

and the creek. The Village has received funding to study 

the daylighting in conjunction with creating public park 

space in the Town lot and identifying additional parking 

opportunities on non-waterfront parcels. May provide 

opportunities to increase marine/fish access to creek. 

Removal on sediment deposits will increase creek depths. 

Removal of sediments may improve the creek habitat for 

fish and other marine life. 

Phragmites has established on sediment deposits in the 

creek and displaced native species. Removal will allow for 

reestablishment of native species. 

5. Restore damaged bulkhead near OT36. Restoration of damages bulkhead will reduce soil erosion. 

6. 

Remove OT34 or redesign to prevent backup 

to Village Parking field 

Repiping the drainage system in the eastern municipal 

parking field will remove some flow volume from Mill 

Creek and prevent surface water backup into the parking 

filed during high tide events. Project detailed in prior 

TARGET PROJECT 2 description. 

This project will require coordination with the 

Town of Brookhaven, which has jurisdiction of the 

floodgate, requiring work to be completed by 

Town. Improvement to fish/marine access should 

be considered. 

The parking lot is owned by the Town of 

Brookhaven. The parking field serves the Town 

marina and fills to capacity many days during 

boating season. Alternative parking needs to be 

identified. Daylighting the creek may require that 

the tide gate in Item 1 be relocated south to West 

Broadway. This project is being studied by the 

VPJ under a separate grant. 

Dredged materials need to be tested to determine if 

they contain hazardous materials and disposed of 

accordingly. 

Phragmites removals in conjunction with dredging 

will allows for removal of root mass. A program to 

monitor phragmites re-infestation is necessary to 

ensue that phragmites does no displace planted 

natives. 

The eastern parking field has two drainage systems. 

One system outfalls to OT34 and the other to the 

harbor east of OT4. Repiping to the eastern outfall 

will require that a WQI be installed at that outfall. 

The Village is applying for a WQIP grant to 

undertake this work. 




Table 5-1 


Item No. 




7. 

8. 

9. 

10. 

Revegetate creek banks with native species. 

Remove upland invasives – including 

Norway maples and multiflora rose. 

Stabilize creek edge with coir logs and brush 

layering 

Revegetate banks at Village Hall with native 

species that provide stormwater filtering 

ability. 

Remove sediment deposits from culvert 

entrance. 

Removal of invasive species and replacement with native 

species will increase habitat and improve filtering capacity 

of vegetation. 

Stabilization and revegetation will mitigate bank failure 

and prevent continued erosion. 

Replacement of mulched beds with native species 

increases habitat and the natural environment of the creek 

shoreline. 

Removal of sediment deposits will increase creek depth, 

which may improve the creek habitat for fish and other 

marine life. 

11. Install WQI at Village outfalls. WQIs will remove sediment carried into creek. 

12. 

13. 

14. 

Remove phragmites and sediment deposits 

east side of Barnum Avenue. Investigate 

force main crossing for creek flow 

restriction. 

Plant native grasses and forbs along shoreline 

to filter runoff. 

Provide evergreen screening of parking lots 

and poor views along north shoreline. 

15. Increase views to creek from park walk. 

Removing heavy sediment deposits and phragmites 

infestation will improve creek flow and capacity, 

reducing flooding and may increase fish and marine 

access. 

Grass buffers will filter pollutants from any direct runoff 

into the creek. 

Evergreen screens will improve aesthetic values from the 

pedestrian trail on the south side of the creek and can 

provide cover for many bird species. 

Stewardship of the creek can increase as citizens’ and 

community members’ awareness of the creek increases. 

Removal of invasive species that are screening the creek 

such as stands of phragmites and multiflora rose will open 

additional views of the creek. 

Removal of species and root mass has the potential 

to destabilize slopes and must be replanted quickly 

and stabilized during plant establishment period. 

The maximum elevation of the creek during large 

storm flows must to determined and stabilization 

extended to that elevation. 

A dense planting of grasses will provide filtering of 

any surface runoff from the parking lot and walks. 

Dredged materials must be tested to determine if it 

contains hazardous materials and disposed of 

accordingly. 

This small parking lot offers good opportunity to 

install an initial WQI in the Village and an 

associated educational effort. 

An exposed force main may be restricting creek 

flow and allowing heavy sediment deposits that 

have become phragmites infested. This issue may 

be related to the backup of flow to Barnum Avenue 

culvert. 

To provide filtering plants need to be to be 6” 

minimum height. 

Limited planting space may be available at top of 

bank. Alternative screening may be a solid fence or 

a fence structure planted with non-invasive 

evergreen vines. 

Removal of existing plants can destabilize slopes 

and plantings need to be reinstalled quickly and 

with appropriate stabilization measures. 


Item No. 

16. 

17. 

18. 

19. 

20. 

21. 

22. 



Table 5-1 





Reconstruct Barnum Street culvert to 

improve flow. 

Acquire property south side of creek at 

Barnum (Parcel 0206-12-6-7) for park walk 

extension and storm water filtering 

Revegetate steep creek banks with native 

species. Remove upland invasives – 

including Norway maples and multiflora 

rose. 

Provide evergreen screen planting or fencing 

of parking lots and poor views along north 

shoreline 

Remove invasive species at shoreline and 

revegetate with native species of grasses and 

forbs along shoreline to filter runoff. 

Stabilize creek banks at ball field where it is 

eroding. 

Remove debris and trash from creek and 

banks 

Heavy sediment deposits and phragmites infestation exist 

between Barnum Avenue and the Village Hall property. 

Removal of sediments and invasives, followed by 

shoreline stabilization and revegetaton will increase 

habitat and aesthetic of the creek corridor. As discussed in 

Item No. 12, build up may be related to a SCDHS sewer 

force main that restricts flow. This project is a component 

of TARGET PROJECT 5 described in the prior section. 

REACH 2 – BARNUM AVENUE TO BROOK STREET 

Acquisition of this property will provide an opportunity 

to extend the public walk the length of Reach 2 and to 

provide a filtering system for a portion of the WQV. 

Removal of invasive species and replacement with native 

species will increase habitat and improve filtering capacity 

of vegetation 

Evergreen screens will improve aesthetic values from the 

pedestrian trail on the south side of the creek and can 

provide cover for many bird species. 

Grass buffers will filter pollutants from any direct runoff 

into the creek. 

Stabilization of this eroding slope will reduce the pollutant 

load in the creek. 

Debris removal will provide habitat and aesthetic 

improvements as well as provides opportunities to 

revegetate shoreline with native species. 

The actual condition of the Barnum Avenue culvert 

needs to be assessed as part of this work. The 

Village has applied for a WQIP grant to undertake 

this study. An exposed force main may be 

restricting creek flow and causing heavy sediment 

deposits that have become phragmites infested. 

This property is currently proposed for development. 

If acquisition is not possible, require that the Village 

shoreline easement grant pedestrian access along the 

shoreline and a pedestrian walk installed. 

Removal of species and root mass has the potential 

to destabilize slopes and must be replanted quickly 

and stabilized during plant establishment period. 

Limited space may be available at top of bank. 

Alternative screening may be a solid fence or a 

fence structure planted with non-invasive 

evergreen vines. 

To provide filtering plants need to be to be 6” 

minimum height. 

A path worn down the side slope of the creek 

appears to be the result of ongoing creek access. 

Stabilize the slope and confine disturbance so 

erosion does not spread. 

Construction debris is located on private properties 

along the creek and removal can be handled as 

code enforcement issues. 




Table 5-1 


Item No. 




23. 

24. 

25. 

Extend the pedestrian walk west from 

Barnum Avenue to Brook Road. 

Remove debris from wetland area northeast 

of creek bridge at ball field. 

Acquire properties (0206-11-6-18, 19, 20) 

along Brook Road for wetland expansion. 

26. Dredge Old Mill Pond to remove sediments 

27. 

Remove phragmites and other invasive 

species from pond perimeter, remove lawn 

on north side of pond and revegetate with 

native species. 

Extension of the public walk will increase public views 

and stewardship of the creek. Acquisition and 

preservation of land will reduce potential for additional 

impervious areas near the creek. 

Debris removal will provide habitat and aesthetics 

improvements as well as provides opportunities to 

revegetate shoreline with native species. 

These parcels would the opportunity to develop a filtering 

wetland that can filter pollutants from runoff from Brook 

Street. The pedestrian creek walk can be extended through 

three parcels and the design tied to the wetland 

development and ball field access. 

Removal on sediment deposits will increase pond depths 

and capacities. Removal of sediments may improve the 

pond habitat for fish and other marine life This project is a 

component of TARGET PROJECT 4 described in the prior 

section. 

Phragmites has established along the eastern side of the 

pond and displaced native species. Removal will allow for 

reestablishment of native species. Replacement of lawn 

with native species will provide additional runoff filtering. 

As discussed in Item No. 17 property acquisition or 

public easement is required to extend walk. The 

available level area at the top of the creek bank at 

the ball field is limited. 

Construction debris is located on private properties 

along the creek and removal can be handled as 

code enforcement issues. 

These parcels are currently part of a proposed 

development. If acquisition is not possible, require 

that the Village shoreline easement grant pedestrian 

access along the shoreline and a pedestrian walk 

installed. 

Dredged materials need to be tested to determine if 

they contain hazardous materials and disposed of 

accordingly. The Village is applying for a WQIP 

grant to undertake this work. 

Phragmites removals in conjunction with dredging 

will allows for removal of root mass. A program to 

monitor phragmites re-infestation is necessary to 

ensue that phragmites does no displace planted 

natives. 

REACH 3 – BROOK STREET TO LONGFELLOW LANE 

28. Reconstruct pipe culvert under Brook Street 

Improvement of flow will prevent over road flooding that 

carries sediment and pollutants into the pond. This project 

is a component of TARGET PROJECT 4 described in the 

prior section. 

Road levels may need to be raised to provide 

proper pipe cover. Curbing this section of road and 

directing road runoff to a WQI prior to discharge 

will reduce sediment deposits in the wetland and 

pond. See Item No 25 for potential property 

acquisition at this outfall. The Village has applied 

for a WQIP grant to undertake this work. 


Item No. 

29. 

30. 

31. 

32. 

33. 



Table 5-1 





Remove sediment and invasives in remaining 

wetland and revegetate with native species. 

The remains of a NYSDEC designated wetland exist on 

the west side of Brook Street near Old Mill Pond. 

Removal of debris and invasive species and introduction of 

native species will improve the wetland quality. 

The wetland is on private property and educational 

meetings and coordination with residents will be 

required. 

Remove sediment deposits from vernal 

channel, regrade to provide infiltration and 

revegetate with native species 

This channel is heavily sedimented. Removal of sediment 

and planting with native vegetation will increase creek 

corridor habitat and improve aesthetics. Removal of 

sediments will also improve channel capacity. 

The vernal channel is located on the west side of 

Brook Street on private property and extends to 

Longfellow. In accordance with Village code 

Chapter 220, the Village maintains an access 

easement along dry streambanks with a 20’ access 

strips along the top of the streambank. 

Direct WQV of storm flow to vernal stream 

channel to provide filtering and infiltration. 

Install sediment trap prior to this inlet. 

A portion of the drainage from the Longfellow and 

Carolina intersection can be directed to this channel to 

provide filtering and infiltration prior to entering the 

wetland and the pond. This project is a component of 

TARGET PROJECT 4 described in the prior section. 

As the channel is on private property, educational 

meetings and coordination with residents will be 

required. 

REACH 4 – BROOK STREET TO WEST BROADWAY 

Plant channel with native and/or tall grass 

species to provide filtering of flow. 

Tall plant materials will provide additional filtering of 

pollutants from storm runoff from parking lots. 

Perennial flow in these channels appears to be from 

ground seeps. Require private outfall to install and 

maintain a WQI prior to the outfall to reduce 

pollutant inputs. 

Assess pipe culvert under Brook Street and 

investigate discharge location at creek 

Curbing this section of road and directing road runoff to a 

WQI prior to discharge will reduce sediment deposits in 

the wetland. This project is a component of TARGET 

PROJECT 4 described in the prior section. 

Road levels may need to be raised to provide 

proper pipe cover. Pipe appears to run under 

private property and discharge into a small wetland 

area at the rear of the boat storage yard. See Item 

No 25 for potential property acquisition at this 

outfall. 




Table 5-1 


Item No. 




GENERAL RECOMMENDATIONS 

34. 

Establish maintenance easement access and 

require vegetated buffer in easement. 

Requiring easement to be vegetated will improve the water 

quality of surface runoff that enters the creek. 

Much of the creek is on private properties and 

Village code requires that municipal easement of 

the water body plus an additional 20’ access 

easement be maintained. Land use of the easement 

is not discussed so easement may be impervious 

surface and not provide a buffer between the land 

uses. 

35. 

Work with local school or environmental 

groups develop a program to assess habitat 

condition in the creek. 

36. Sponsor creek clean-up events. 

37. 

Require all redevelopment along creek to 

provide a planted buffer that contains 

grasses and forbs to improve habitat and 

increase pollutant filtering and trees with root 

systems to stabilize banks. 

Increasing the number of citizens and community 

members involved in creek restoration will increase creek 

stewardship. 

Conducting events that increase the number of citizens 

and community members involved in creek restoration 

will increase creek stewardship. 

Requiring easement to be vegetated will improve the 

water quality of surface runoff that enters the creek. 

As the Creek and pond are involved in a plume 

remediation project, activities that bring citizens or 

community members in contact with the sediments 

or surface waters must be assessed for safety prior 

to undertaking any activities. 

As the Creek and pond are involved in a plume 

remediation project, activities that bring citizens or 

community members in contact with the sediments 

or surface waters must be assessed for safety prior 

to undertaking any activities. 

Modify Village code to require that the 20’ 

easement include a portion of the easement be 

maintained as vegetation that provides filtering of 

overland flow. 

38. 

Install leaching pools and/or WQIs to all 

outfalls to reduce pollutant inputs to creek. 

Reducing the pollutants that enter the creek will improve 

the creek water quality and the potential to provide 

habitat. 

Installation of infiltration structures and WQIs 

requires significant levels of funding. These 

structures must also be maintained on a regular 

basis to retain pollutant removal capacities. The 

Village has begun to seek funding for several target 

pollution removal projects discussed in Section 4.0 


Item No. 

39. 



Table 5-1 





Develop a pedestrian creek walk from the 

harbor at the Town parking lot along the 

south side of the creek to the ball field and 

then along the north side of the creek to 

Brook Street 

A continuous walk will increase citizen awareness and 

stewardship of the creek and provide an additional form 

of waterfront access opportunity in the Village 

Property acquisition or public access easements are 

required to extend this walk. 





degrades vegetative communities and habitat, causes erosion and increases overbank 

flooding during storm events. 

Slope stabilization measures also include locations where foot traffic has worn away 

vegetation and runoff is carrying soil from the denuded slope into the creek. In Reach 2, 

foot trails from the ball field and along the southern shoreline of the creek are impacting 

stability of the shoreline. 

Stabilization of streambanks helps to prevent erosion and sediment loading, thereby 

contributing to improved water quality. Stabilization projects can often be successfully 

combined with trail and other access enhancements. Locations where the shoreline is 

eroding and plant materials have been impacted are identified on Table 5-1 and projects 

to implement slope stabilization and plant restoration are identified. For the 

recommendation to develop a continuous pedestrian foot trail along the creek, a trail 

stabilization plan should be developed. 


See items numbers 5, 8 and 21 on Table 5.1. 

Invasive Species Removal and Native Plant Restoration Recommendations 

The most widespread and visibly notable plant threats are phragmites along the creek and 

pond shoreline, and Norway maples, an upland invasive, along the creek banks. Other 

invasive species include multiflora rose, Japanese knotweed, Asiatic bittersweet and 

numerous non-native herbaceous plants including curly dock, smartweed, ground ivy, 

and English ivy. Control methods will vary based on numerous factors but there is 

general recognition that invasive species threats are increasingly widespread, and 

deleterious to natural vegetation and wetland functions. Phragmites can be removed as 

part of the sediment removal projects discussed above. Following removal, a program to 





monitor the removal effort is necessary to ensure that phragmites does not reestablish and 

displace any native species planted in its place. 

Upgradient invasive species such as Norway maple, Japanese knotweed and Asiatic 

bittersweet are abundant in the upland areas in all reaches. Removal should be 

coordinated with native plant restoration and stabilization efforts so that slope erosion is 

not increased. 

The removal of invasive species in the watershed is principally aimed at invasive plants, 

but this should also include control of invasive animal organisms, such as alien or 

introduced fish species that threaten natural biodiversity, if identified. 


See items numbers 4, 7, 12, 18, 20, 27 and 29 on Table 5.1. 

Riparian Buffers Improvements 

Re-establishment or conversion of the interface of the creek corridor and residential 

and/or other land uses can be improved with the use of native and non-invasive 

vegetative plantings that restore pollutant-filtering capabilities. The interface between 

the Village properties on the south side of the creek in Reach 1 offer opportunities for 

improved filtering capacity. The shoreline of Mill Pond provides excellent opportunities 

to restore a shoreline buffer that can filter runoff and increase aesthetics. The restoration 

effort can be coordinated with areas civic groups and school programs. This restoration 

can be used in the effort to educate residents to the importance of maintaining buffers. 

This work must be coordinated with the USEPA plume remediation. 






See items numbers 7, 9, 13, 18, 20, 27, 29, 34 and 37 on Table 5.1. 

Stewardship Opportunities 

Volunteer groups provide opportunities to conduct studies, undertake restoration projects 

and attend creek clean-up events. In some watersheds, school groups, environmental 

programs, ecology clubs, or local civic groups undertake water testing and environmental 

studies. Volunteer groups can also provide labor for restoration projects such as invasive 

plant removal and native species planting or conduct annual creek clean-up efforts in 

conjunction with harbor events or Earth Day programs. The Village can encourage 

volunteer efforts by providing the equipment, dumpsters and disposal components 

necessary for a clean-up event or underwriting the costs of some project materials. 


See items numbers 35 and 36 on Table 5.1. 

Instream Habitat Assessment and Improvements 

The natural streambed has been altered by numerous human activities. Channel functions 

have been degraded by dredging and filling for residential and commercial uses. Physical 

improvements can be undertaken to increase dissolved oxygen levels and improve 

aquatic communities. Restoration to a natural, stable channel and improvement of stream 

flow can restore ecosystem function and protect property and infrastructure while 

reducing maintenance costs. Aquatic habitat restoration recommendations include 

improvements to allow fish greater access to the length of the creek by modification to 

impediments, daylighting creek segments, improving the instream habitat, stabilizing 

eroding streambanks, and conducting research into fish populations and management 

improvements. 





Further research into the types of fish currently found in the creek, along with a review of 

the habitats, followed by fish and habitat management improvements may increase the 

populations of native fish or marine life in the creek. Investigations into current 

impediments to fish passage in the watershed should include the existing harbor pipe 

outfall, tide gates, and blockage at Barnum Avenue along with the potential for removal 

or improvement and the applicability of marine habitat improvement strategies. 

Determination of the potential to reestablishment fish populations in the Mill Creek 

should be completed after sediment removal and flow improvements. Existence of 

shallow water depths and the tide gate may make reestablishment infeasible. Studies 

should be carried out through collaborative efforts between the Town, Suffolk County, 

NYSDEC, and civic groups. 


See items numbers 11, 17, 25, 30, 31, 32, 33 and 38 on Table 5.1. 

Potential Improvements for Wildlife 

Stream corridors offer habitat for many forms of wildlife because of the proximity of a 

water source to ecological communities that include trees and plant materials that provide 

food, nesting, and cover. For preparation of this Plan, field investigations were limited to 

visible observations and indentified northern cardinal (male and female), mallard duck 

(female), gray catbird, red-winged blackbird, black-crowned night heron (adult and 

juvenile), eastern grey squirrel, and raccoon (tracks). No additional information on 

species currently utilizing the creek corridor was identified. 

The habitat restoration improvements recommended in this Plan will improve the creek 

habitats and benefit the fauna that have the potential to survive and live along the stream 

corridor. The creek corridor contains several habitats including tidal stream, freshwater 

stream, pond, freshwater wetland and intermittent stream. The Mill Creek will remain a 

narrow urban corridor but this Plan’s proposed improvements can result in additional or 





expanded habitat that can be home to fish, birds, small mammals, and reptiles and 

amphibians (salamanders, turtles, toads, frogs and snakes). In addition, stream fauna 

including aquatic and terrestrial invertebrates (mayflies, midges, black flies, aquatic 

insects, worms and crustaceans) are important to the food chain and their survival is 

impacted by heavy sediment loads and decreased water quality. 

Most of the recommendations identified in this section of this plan, including pond 

dredging, flow improvements, invasive species removal, native species restoration, slope 

stabilization and creek daylighting are effective means to improve habitat for wildlife. 

Daylighting of the creek at the harbor may additionally increase the potential for fish 

species to better utilize the creek. Installation of native plant materials appropriate to the 

habitat is important for wildlife as the plant materials provide food, nesting and cover. 

Dredging of sediment from the pond and creek will improve the environment for benthic 

macro invertebrates. Overall, improvements to the physical setting of the creek and 

improvement to water quality are expected to increase the diversity and abundance of 

desirable wildlife species including birds, fish, amphibians and invertebrates. 

Water quality sampling and study of species utilizing the creek should be conducted 

following USEPA approval of contact with the creek waters. Macro invertebrates, 

because of their abundance and sensitivity to environmental impacts are widely used in 

biomonitoring programs to assess water quality changes. Monitoring of the creek can be 

conducted in conjunction with a university program or a high school ecology club or 

science program. Initial sampling will provide a baseline to assess improvements to the 

creek habitats and water quality over time. 


See items numbers 1, 2, 7, 9, 10, 13, 16, 18, 20, 26, 29 and 30 on Table 5.1. 





Public Access and Aesthetic Enhancements 

In addition to water quality and habitat improvements, numerous improvements were 

identified for the creek corridor that will improve public access to the creek and the 

aesthetic environment of the corridor. Improving creek access and aesthetics can play an 

important role in improving community stewardship of the waterbody by increasing 

identification of the creek as an asset to the community that deserves protect, restoration 

and stewardship. 


See items numbers 14, 15, 17, 19, 23 and 39 on Table 5.1. 





6.0 IMPLEMENTATION STRATEGIES 

Implementation strategies address the methods and means by which the recommendations for 

pollutant control measures and creek corridor restoration projects identified in the prior sections 

can be implemented. These strategies include a framework for implementing the work including 

project priorities, partnerships, budgets, funding sources and code and ordinance modification 

and enforcement. Table 6-1 Mill Creek Recommendations – Implementation Strategies lists the 

watershed-wide mitigation recommendations, site-specific structural pollution control 

recommendations and creek corridor restoration recommendations. For each recommendation, 

Table 6-1 lists the type of action, responsible entity, priority, potential funding sources and 

public budget cost and final product. The type of action lists whether the action is undertaken by 

a municipality, a private group or is an educational or legislative action organization. The 

responsible entity includes the specific entity who would oversee the action, such as the Village 

of Port Jefferson, Town of Brookhaven, New York State Department of Transportation or 

property owners. Funding sources are identified based on the type of projects and the possible 

sources described in Section 6.4. Public budget costs and product list the relative cost of each 

product and the type of final product that will be delivered. 

The project priority has been assigned a rating of high, medium or low based on preliminary 

consideration of several key components including, but not limited to, the goals and objectives of 

the project, the assumed or known effectiveness of the project or action, technical feasibility, 

coordination with other projects or planning efforts and funding availability. Due to the need to 

consider the availability of funding to implement most of the project recommendations, an actual 

schedule of implementation has not been included in this Plan. 





6.1 IMPLEMENTATION SCHEDULE 

Implementation of a watershed management plan typically requires a period of several years. 

Implementation timeframes will vary based on numerous factors including availability of 

funding, public input, permitting requirements, agency coordination, land acquisition, and 

technical issues. The following is a recommended framework for implementing the 

improvements included in this Plan. 

• The initial steps should be to begin preparation of funding applications for target 

structural project as program funds become available. 

• At the same time, the Village can begin to focus the initial educational efforts on the 

removal of bacteria and nutrients from runoff through educational efforts for fertilizer 

reduction, pet waste clean up and septic system maintenance. Initial municipal good 

housekeeping operations should include increased watershed street sweeping, particularly 

focused on periods following winter storm events and prior to heavy spring rains. 

Additional educational and good housekeeping efforts identified in this plan should be 

implemented annually and can be coordinated with the requirements of the SPDES MS4 

educational and municipal program requirements. 

• Implementation of structural target projects should begin with cleaning of the storm 

drainage infrastructure, which has been identified as a high priority target project, and the 

development of a program to monitor the creek waters for pollutants including sediments, 

nitrogen, phosphorus, bacteria, and hydrocarbons. The result of this initial monitoring 

will be useful in assessing the improvements in water quality in the creek over time. 

• Prior to undertaking any of the following projects, the Village should coordinate with 

USEPA to ensure that any of the watershed remediation and associated infrastructure 

improvements included herein are planned and implemented with consideration of the 

plume remediation work. 




Table 6-1 

Mill Creek Recommendations - Implementation Strategies 

NO. RECOMMENDATION 

TYPE OF 

ACTION 

RESPONSIBLE 

ENTITY 

PRIORITY FUNDING 

SOURCES 

WATERSHED-WIDE RECOMMENDATIONS 

Natural Resource Identification, Protection and Restoration Recommendations 

Creek Corridor Restoration. Municipal Village HIGH 2,4,5,7,9 $$$; P 

Property Acquisition, Land Preservation and 

Municipal Village HIGH 4,8,9 $$$; L, C 

Land Use Modification. 

Community and Volunteer Programs. Private 

Creek Interpretative Signage and 

Identification. 

School/Private 

groups 

LOW 3,4,10,11 $; S 

Municipal, Private Village LOW 3,4,5,9,10,11 $; P 

Task Force Establishment. Municipal, Private Village MEDIUM 10,11 $; S 

Education and Outreach Recommendations 

Neighborhood Stewardship Source Reduction Practices. 

Education, Private 


Business and Commercial Property 

Education, Private 

Education and Outreach Opportunities. Implementation 

Municipal Employee Educational Training Education, 

Programs. 

Municipal 

Nonpoint and Point Source Management and Control Recommendations 

Municipal Pollution Prevention and Good 

Housekeeping Program. 

TARGET PROJECT 1 – Drain structure 

Maintenance. 

Street Cleaning. 

Village/Residents MEDIUM 3,4,7,10,11 $; E 

Village/Private 

Business Groups 

MEDIUM 3,4,7 $; E 

Village HIGH 3,4,9,10 $; E 

Municipal Village HIGH 

MEDIUM 

LOW 

3,4,9,10 

PUBLIC BUDGET 

COST/PRODUCT 

Project 1 - $$$; P 

St Cleaning – varies; P 

Pav’t repair – varies; P 

Pavement Repair. 

Hotspot Pollution Prevention and Mitigation Municipal, Private Village MEDIUM 1,3,4,7,9,10 Varies; P 

Illicit Discharge Detection and Response 

Detection - $; D 

Municipal, Private Village MEDIUM 1,3,4,7,9,10 

(IDDR) Program. 

Response – varies; P 

Pollution Mitigation Projects. Municipal, Private Village/NYSDOT HIGH 1,3,4,6,7,9,10 

Varies by project see 

below; P 

Drainage Infrastructure Investigations. Municipal Village HIGH 3,4,9,10 $; D 

Impervious Surface Reduction. Municipal, Private 

Village/Property 

Owners 

LOW 3,4,6,9,10 Varies by area; P 




Table 6-1 



On-site Sanitary System Management 

Program. 

TYPE OF 

ACTION 

Education, 

Municipal 

RESPONSIBLE 

ENTITY 


SOURCES 

SCDHS/Village LOW 1,3,4,7,9,10,11 $; E, C 

Law and Regulation Enforcement. Municipal Village MEDIUM 10 $; S 

Modification of Existing Laws and 

Regulations. 

Water Quality and Pollution Reduction Monitoring 

Water Quality Sampling and Monitoring 

Program. 

Legislative Village LOW 10 $; C 

Municipal, Private 

Village/Private 

Groups 

SITE-SPECIFIC STRUCTURAL STORMWATER POLLUTION MITIGATION RECOMMENDATIONS 

REACH 1 - 

TOTAL 

Drainage 

Area 1A - 


Parking 

Drainage 

Area 1B - 


Parking 

Drainage 

Area 1C - 


Parking 

Drainage 

Area 1D - 

Prospect, 

South, 

Spring, 

Tuthill 

Drainage 

Area 1E - 

Jones/Old 

See Drainage Areas 1A-1H Below 

System repiping to harbor outfall with WQI- 

TARGET PROJECT 2. 

LOW 3,4,10 $; S 

Municipal Village HIGH 2,3,4,6,7,9,10 

WQI at outfall. Municipal Village MEDIUM 3,4,7,9,10 $; P 

WQIs at pipe connections to culvert. Municipal Village MEDIUM 3,4,7,9,10 $$; P 

WQIs at pipe connections to culvert at Maple 

and pipe near Tuthill. 

Large WQI near Barnum/ 25A intersection at 

beginning of culvert. 

Upgradient infiltration structures. 

Municipal Village MEDIUM 3,4,7,9,10 $$; P 

Municipal Village HIGH 

MEDIUM 

3,4,6,7,9,10 

PUBLIC BUDGET 

COST/PRODUCT 

Repiping - $$; P 

Project 2 - $$; P 

WQI - $$; P 

Infiltration - $$; P 




Table 6-1 



Post South TARGET PROJECT 6 


Drainage 

Area 1F - 

School 

Drainage 

Area 1G - 

Markham & 

Barnum @ 

Maple 

Drainage 

Area 1H - 

Commercial 

@ W. 

Broadway 

REACH 2 - 

Barnum 

Avenue 

REACH 3 - 

Brook Road 

to 

TYPE OF 

ACTION 

RESPONSIBLE 

ENTITY 


SOURCES 

Biofiltration rain garden. Private School LOW 3,4,7,11 $; P 

WQI at pipe discharge to culvert. 

Private on-site containment or WQIs. 

Village Hall WQI. 

Property acquisition. 

Stormwater bioretention system. 

WQI at outfall 28 and 31. 

Private on-site containment or WQI. 


Clean and redevelop stream channel to carry 

low volume storm flow with check dams. 


HIGH 

HIGH 

Municipal Village MEDIUM 3,4,7,9,10 $; P 

Private 

Municipal 

Municipal 

Private 

Village, Property 

Owners 

Village, Property 

Owners 

PUBLIC BUDGET 

COST/PRODUCT 



MEDIUM 3,4,7,9,10,11 On-site - $ each; P 

WQI - $; P 

Bioretention-$$; P 

WQI-$$; P 

On-site - $ each; P 

Project 5 $$$; P 

HIGH 2,3,4,6,7,8,9,10,11 Acq.-$$$; L 

Municipal Village HIGH 2,3,4,7,9,10 

Stream Channel - $; P 

Longfellow 

Project 4 - $$$; P 

REACH 4 - 

Property acquisition and stormwater 

Brook Road 

wetland/bioretention system in Reach 2, see Municipal 

to West 

Village HIGH 2,3,4,,7,8,9,10 P 

above. 

Broadway 

CREEK CORRIDOR RESTORATION RECOMMENDATIONS 

REACH 1 – PORT JEFFERSON HARBOR OUTFALL TO BARNUM AVENUE 

1 Restore flood gate function. Municipal Town of Brookhaven HIGH 2,3,4,5,6,7 $$$; P 

2 Daylight creek segment through waterfront Municipal Town of Brookhaven MEDIUM 2,3,4,5,6,7 $$$; P 




Table 6-1 



TYPE OF 

ACTION 

RESPONSIBLE 

ENTITY 


SOURCES 

parking lot. 

3 

Dredge sediment from reach segment south 

of West Broadway. 

Municipal 

Village MEDIUM 1,2,3,4,7,9,10 $$; P 

4 

Remove phragmites from creek segment 

south of West Broadway. 

Municipal 

Village MEDIUM 2,3,4,7,9,10 $; P 

5 Restore damaged bulkhead near OT36. Municipal Village HIGH 9,10 $$; P 

6 

Remove OT34 or redesign to prevent backup 

to Village Parking field. 

Municipal 

Village HIGH 3,4,7,9,10 $$$; P 

7 

Revegetate creek banks with native species. 

Remove upland invasives – including Municipal Village MEDIUM 2,3,4,7,9,10 $$; P 

Norway maples and multiflora rose. 

8 

Stabilize creek edge with coir logs and brush 

layering. 

Municipal 

Village MEDIUM 2,3,4,7,9,10 $$; P 

9 

Revegetate banks at Village Hall with native 

species that provide stormwater filtering Municipal Village MEDIUM 2,3,4,7,9,10 $; P 

ability. 

10 

Remove sediment deposits from culvert 

entrance. 

Municipal 

Village HIGH 3,4,7,9,10 $; P 

11 Install WQI at Village outfalls. Municipal Village HIGH 3,4,7,9,10 $; P 

Remove phragmites and sediment deposits 

east side of Barnum Avenue. Investigate 

12 

Municipal Village, SCWA HIGH 2,3,4,7,9,10,11 $; P 

force main crossing for creek flow restriction. 

13 

Plant native grasses and forbs along shoreline 

to filter runoff. 

Municipal 

Village MEDIUM 2,3,4,7,9,10 $$; P 

14 

Provide evergreen screening of parking lots 

and poor views along north shoreline. 

Municipal 

Village LOW 10,11 $; P 

15 Increase views to creek from park walk. Municipal Village LOW 10 $; P 

16 

Reconstruct Barnum Street culvert to 

improve flow. 

REACH 2 – BARNUM AVENUE TO BROOK STREET 

17 

Acquire property south side of creek at 

Barnum (Parcel 0206-12-6-7) for park walk 

Municipal Village HIGH 3,4,7,9,10 $$; P 

Municipal Village HIGH 4,8,9 $$$; L 

PUBLIC BUDGET 

COST/PRODUCT 




Table 6-1 


18 


extension and storm water filtering. 

Revegetate steep creek banks with native 

species. Remove upland invasives – 

including Norway maples and multiflora 

TYPE OF 

ACTION 

RESPONSIBLE 

ENTITY 


SOURCES 

Municipal Village MEDIUM 2,3,4,7,9,10 $$; P 

rose. 

Provide evergreen screen planting or fencing 

19 

of parking lots and poor views along north Municipal Village LOW 10,11 $; P 

shoreline. 

Remove invasive species at shoreline and 

20 

revegetate with native species of grasses and Municipal Village MEDIUM 2,3,4,7,9,10 $$; P 

forbs along shoreline to filter runoff. 

21 

Stabilize creek banks at ball field where it is 

eroding. 

Municipal 

Village MEDIUM 2,3,4,7,9,10 $; P 

22 

Remove debris and trash from creek and 

banks. 

Municipal 

Village HIGH 10,11 $; P 

23 

Extend the pedestrian walk west from 

Barnum Avenue to Brook Road. 

Municipal 

Village LOW 5,6,9 $$; P 

24 

Remove debris from wetland area northeast 

of creek bridge at ball field. 

Municipal 

Village HIGH 10,11 $; P 

25 

Acquire properties (0206-11-6-18, 19, 20) 

along Brook Road for wetland expansion. 

Municipal 

Village HIGH 4,8,9 $$$; L 

26 Dredge Old Mill Pond to remove sediments. Municipal Village MEDIUM 1,2,3,4,7,9,10 $$; P 

27 

Remove phragmites and other invasive 

species from pond perimeter, remove lawn on 

north side of pond and revegetate with native 

species. 

Municipal Village MEDIUM 1,2,3,4,7,9,10 $$; P 

REACH 3 – BROOK STREET TO LONGFELLOW LANE 

28 Reconstruct pipe culvert under Brook Street. Municipal Village HIGH 3,4,6,7,9,10 $; P 

29 

30 

Remove sediment and invasives in remaining 

wetland and revegetate with native species. 

Remove sediment deposits from vernal 

channel, regrade to provide infiltration and 

Municipal Village MEDIUM 1,2,3,4,7,9,10 $; P 

Municipal Village MEDIUM 1,2,3,4,7,9,10 $; P 

PUBLIC BUDGET 

COST/PRODUCT 




Table 6-1 


31 


revegetate with native species. 

Direct WQV of storm flow to vernal stream 

channel to provide filtering and infiltrate 

Install sediment trap prior to this inlet. 

TYPE OF 

ACTION 

RESPONSIBLE 

ENTITY 


SOURCES 

Municipal Village LOW 2,3,4,6,7,9,10,11 $; P 

REACH 4 – BROOK STREET TO WEST BROADWAY 

Plant channel with native and/or taller grass 

32 

Municipal Village MEDIUM 2, 4,7,9,10,11 $; P 

species to provide filtering of flow. 

Assess pipe culvert under Brook Street and 

33 

Municipal 

investigate discharge location at creek. 

Village HIGH 3,4,6,7,9,10 $; D 

GENERAL RECOMMENDATIONS 

Establish maintenance easement access and 

34 

Legislative 

require vegetated buffer in easement. 

Village MEDIUM 10 $; C 

Work with local school or environmental 

Education, Private School, Private 

35 

groups develop a program to assess habitat 

LOW 

Implementation groups 

10,11 $; D 

condition in the creek. 

36 Sponsor creek clean-up events. Municipal, Private Private groups MEDIUM 10,11 $; P 

37 

38 

39 

Require all redevelopment along creek to 

provide a planted buffer that contains grasses 

and forbs to improve habitat and increase 

pollutant filtering and trees with root systems 

to stabilize banks. 

Install leaching pools and/or WQIs to all 

outfalls to reduce pollutant inputs to creek. 

Develop a pedestrian creek walk from the 

harbor at the Town parking lot along the 

south side of the creek to the ball field and 

then along the north side of the creek to 

Brook Street. 

Legislative Village MEDIUM 10, 11 $; C 

Municipal Village HIGH 3,4,7,9,10 $$; P 

Municipal Village LOW 5,6,9 $$; P 

PUBLIC BUDGET 

COST/PRODUCT 




Table 6-1 


Notes: 

Funding Sources (Availability may change based on budget cycles and legislative agenda/funding). Funding program descriptions are included in Section 6.4 of 

this Plan 

1. NOAA CRC 

2. NOAA CRP 

3. Federal CWA 

4. NYS EPF 

5. NYS LWRP 

6. NYS TEA-21 

7. SC Water Quality Protection & Restoration Program 

8. SC Land Acquisition Programs 

9. VPJ Capital Improvement Funding/Municipal Bonds 

10. VPJ Annual Budget 

11. Non-profit or private contributions 

Public Budget Cost: $ = ≤100,000; $$ = ≤ $500,000; $$$ = > $500,000. (2010 Dollars) 

Product: 

C - Code Modification 

D - Data/Information 

E - Educational Materials 

L - Land Acquisition 

P - Physical Modification 

S - Staff Manhours 





• The target projects for the Eastern Municipal Parking Lot, Brook Road and Barnum 

Avenue are identified as high priority projects and should be timed to coincide with any 

road and parking lot improvements projects in those locations. 

• Reconstruction of Inwood Road drainage and improvements along Myrtle Avenue and 

the installation of infiltration structures in the Old Post Road drainage area should follow 

the above target projects. 

• Following implementation of target projects and results of sampling and monitoring 

program, the Village should reassess the plan, identify the next series of water quality 

improvements, and focus funding application on these projects. These projects should 

focus on upgradient infiltration systems and WQIs on specific outfalls. 

6.2 IMPLEMENTATION PARTNERS 

Improvement of the water quality in Mill Creek, and subsequently Port Jefferson Harbor requires 

coordination between many levels of government, civic groups, and involved citizens. The 

Village will need to work closely with all of these groups to reach the goals and objectives set 

forth in this Plan. 

SPDES Phase II regulations require the Village, County, and State to reduce the impact of 

nonpoint source pollutants to waterbodies, including the Mill Creek. These entities should 

consider the formation of a coalition of interrelated agencies similar to the Nassau County Storm 

Water Coalition, to facilitate awareness of the actions undertaken by the various agencies. While 

this inter-municipal coordination would be on a countywide basis, it would also provide a 

conduit to exchange information and coordinate projects within individual watersheds such as 

the Mill Creek. Inter-municipal coordination for Phase II implementation is highly encouraged 

by the State and can be financially beneficial to the municipalities involved. The task force 

could include municipal personnel charged with responsibility for drainage infrastructure and 





roads, planning personnel, GIS staff, and other agency personnel who influence municipal 

resources that affect surface waters. GIS information sharing can lead to mapping of the entire 

drainage infrastructure in the Village and County. Greater coordination of NYS and Village 

efforts to implement pollution control measures should be investigated. Joint efforts can include 

design of infrastructure for both Village and NYS road runoff, Village support for acquisition of 

properties for recharge structures, infrastructure maintenance agreements, and the utilization of 

County or NYS funds - such as the County Save Open Space Fund - to preserve sensitive 

properties within the watershed from development. 

A Mill Creek Task Force should be assembled to begin planning for a comprehensive approach 

to addressing the management issues as discussed in Sections 4.0 and 5.0. The task force should 

include local government representatives, local concerned citizens, business owners, and 

environmental groups. The current watershed advisory committee could serve as the basis for 

formation of this task force. Establishment of a task force could facilitate significant funding 

from a variety of programs with the goal of improving water quality and restoring the creek 

corridor. 

The NYSDOS DCR and the LISS are important resources for the Village as they can provide 

information on the development of educational, outreach and stewardship materials as well as 

information regarding the activities throughout the LISS area that are relevant to the 

recommendations of this plan. Additional government agencies, including Suffolk County 

Cooperative Extension, New York Sea Grant, and the SC SWCD, have information and 

educational materials at their disposal that relate to many of the subjects discussed in this Plan 

including best management practices (BMP), integrated pest management (IPM) and erosion and 

sediment control (ESC). These groups can also provide educational sessions for Village 

personnel and residents. 





Acquisition of project funding from federal and state grant programs is discussed in Section 6.4 

Sources of Funding. Grants can reduce the local costs of implementation measures. 

Environmental permits and approvals for waterfront projects and projects that drain to 

waterbodies may be required from NYSDEC, NYSDOS and USACOE. 

School groups and other volunteers interested in monitoring and researching the creek can 

partner with the Village in the development of a data bank of information on such topics as water 

quality and species presence. 

6.3 CODE AND ORDINANCE ENFORCEMENT AND REVISION 

The Village has implemented many of the codes and regulations recommended to reduce 

pollutant loads including regulations for pet waste disposal (Chapter 17), environmental quality 

review (Chapter 29), prohibition of alteration to stream channels and natural floodplains 

(Chapter 145), pollutant waste disposal (Chapter 191), storm drainage (Chapter 211 and 213) and 

requirements for drainage easements along brooks and dry streambeds. The Village should focus 

on the enforcement of current codes and regulations that reduce pollutants to ensure that the 

highest levels of compliance are met. 

The Village should consider revisions to sections of the existing code to provide appropriate 

references to implementation of BMP’s for storm drainage systems and sanitary systems that are 

referenced in this Plan. The Village should assess Chapter 211 for conformance with the 

requirements of Chapter 213, which were adopted in accordance with the NYSDEC SPDES 

Phase II MS4 program. The allowance for connecting to existing drainage infrastructure may 

require coordination with the Chapter 213 requirement to minimize increase in storm runoff 

pollutant discharges and flow volumes. 





The Village should view procedures for site plan review to ensure that projects along the creek 

receive consideration of its impacts on the creek and appropriate NYSDEC review and permits 

when applicable. 

6.4 SOURCES OF FUNDING 

This section identifies sources of funding that can provide a means to finance the development of 

programs and implementation of improvements for the Mill Creek watershed. 

6.4.1 Federal 

National Oceanic and Atmospheric Administration (NOAA) 

NOAA is responsible for providing technical assistance through the Resource Conservation 

and Assessment/Coastal Resources Coordinator (CRC) program. The CRC program was 

established to restore coastal and marine environments affected by hazardous waste releases 

through the development of plans and projects to address the elimination of waste sources 

and the decontamination of affected sites. The CRC program offers technical assistance from 

a variety of professionals having expertise in evaluating ecological risk, the potential types 

and sources of pollutants, development and implementation of techniques for evaluating the 

magnitude and consequences of environmental degradation, assessment of the costeffectiveness 

of strategies for remediation, and the design of monitoring protocol. 

In addition to the CRC, NOAA’s Community-based Restoration Program (CRP) applies a 

grass-roots approach to restoration by actively engaging communities in on-the-ground 

restoration of fishery habitats around the nation. According to the NOAA website 

(www.nmfs.noaa.gov/habitat/restoration/projects), the CRP emphasizes partnerships and 

collaborative strategies built around restoring NOAA trust resources and improving the 

environmental quality of local communities. The Program provides seed money and 

technical expertise to help communities restore degraded fishery habitats, develops strong 

partnerships to accomplish sound coastal restoration projects, promoting significant 

community support and volunteer participation, instills stewardship and an abiding 





conservation ethic, and leverages resources through national, regional, and local partnerships. 

The CRP is a source of funding to implement the projects and recommendations of the Plan 

including habitat restoration projects for wetland and riparian buffers and stewardship 


Federal Clean Water Act (CWA), Section 319 

In 1987, Congress amended the Federal CWA by adding Subsection 319, entitled the 

Nonpoint Source Management Program. The purpose of the amendment was to provide 

guidance and monetary support to state and local governments for the development and 

implementation of non-point source initiatives. 

The USEPA is authorized under subsection 319 of the CWA to distribute federal grants to 

states for use in state stormwater control programs and projects that have been subject to 

USEPA review and approval. Grants are available for a number of non-point source ventures 

including financing, procurement of technical expertise, educational instruction, technology 

transfer, implementation of pilot projects, and the monitoring of particular non-point source 

projects. NYSDEC implements many of the environmental programs developed at the 

federal level and is responsible for distributing some federal funds to local communities. 

These funds can be used for both the implementation and the monitoring of the drainage 

improvements projects recommend in this Plan. 

6.4.2 New York State 

New York State Environmental Protection Fund (EPF) 

The Environmental Protection Fund was created in 1993 to provide funding for 

environmental protection initiatives. NYSDOS DCR awards EPF Local Waterfront 

Revitalization Program (LWRP) grants; the NYSDEC provides grants for Water Quality 

Improvement grants for projects including those for storm water mitigation, and the NYS 

Office of Parks, Recreation and Historic Preservation for grants for the acquisition and 





preservation of land to be included as public parklands. The EPF grants can be used to 

implement the projects and recommendations included in this plan such as land acquisition, 

stormwater mitigation, habitat restoration projects, sediment removal, and educational 

efforts. 

New York State EPF Local Waterfront Revitalization Program (EPF LWRP) 

The Department of State administers the Environmental Protection Fund Local Waterfront 

Revitalization Program (Title 11). EPF LWRP funds are available to cities, towns, villages 

and counties for projects that fall under the following categories: 

• Visioning and development of local or regional revitalization strategies 

• Completing or implementing a Local or Regional Waterfront Revitalization Program 

• Adapting to climate change 

• Downtown and hamlet revitalization 

• Preparing or implementing a local or regional watershed management plan 

• Urban waterfront redevelopment 

• Creating a blueway trail 

• Interpreting waterfront resources - New York State Coastal Resources Interpretive 

Program 

Transportation Equity Act for the 21 st Century (TEA-21) 

The Nassau Suffolk Transportation Coordinating Committee (NSTCC) is authorized to 

administer the initiatives of TEA-21. TEA-21 provides funding for a number of 

transportation-related projects including stormwater control projects that are proposed for 

improving environmental quality. The TEA-21 funds can be used to implement the drainage 

improvement projects and trails recommendations of this Plan. 

Clean Water Act (CWA) State Revolving Loan Fund (SRLF) 

The primary purpose of the CWA SRLF is to promote water quality by funding proactive, 

reactive, and restoration projects and programs to protect water resources. Low-interest loans 





for water quality control improvements are offered to communities under the Federal 

government’s CWA SRLF. The SRLF was initially seeded by funds provided by federal 

grants and the matching funds of states to finance non-point pollution sources projects that 

are developed in accordance with the State’s Nonpoint Source Management Plan. Projects 

considered eligible for funding include acquisition of environmentally sensitive land, water 

body and wetland restoration projects, and erosion and sedimentation control projects. As 

SRLFs are amortized, the loan fund is replenished, and funds become available for dispersal 

to other entities for their projects. The self-sustaining nature of revolving loan programs is 

essential in ensuring the availability of future funding resources and the perpetuation of 

adequate stormwater treatment control. The SRLF grants can be used to implement the 

projects and recommendations included in this Plan such as land acquisition and habitat 

restoration projects. Although funding may be used for a variety of reasons, the fund has 

often been used for projects that prevent and remediate contamination from methyl tertiary 

butyl ether (MTBE). 

6.4.3 Suffolk County 

Suffolk County Water Quality Protection and Restoration Program 

The County collects funds for implementation of projects that will result in the protection 

and/or restoration of surface water quality throughout Suffolk County through a ¼% sales 

tax. The program is approved though December 31, 2013. Eligible project types include 

nonpoint source pollution abatement and control, aquatic habitat restoration, and pollution 

prevention initiatives. Educational and outreach programs and projects that implement vessel 

waste no-discharge zones are also eligible. Information regarding the program and 

application forms is available on the Suffolk County’s website. These funds can be used to 

implement the projects and recommendations included in this Plan such as stormwater 

mitigation, habitat restoration projects and education. 





Suffolk County Land Acquisition Programs 

The County has a total of twelve programs that provide mechanisms through which the 

County acquires properties for the following purposes: preserving environmentally sensitive 

habitats; protecting important groundwater aquifers; preserving tidal and freshwater wetlands 

and their associated stream corridors; providing access to the bay, sound, and ocean 

shorelines and beaches; developing active recreation sites for County residents; and 

acquisition of farmland development rights to retain agricultural use. These programs may be 

used for land acquisition. 

6.4.4 Port Jefferson Village 

Village Capital Improvement Funding/Municipal Bonds 

In addition to the general budget, the Village can fund stormwater infrastructure projects 

through a variety of standard municipal financing mechanisms such as the use of Village 

Capital Improvement Funds and General Obligation Bonds (Municipal Bonds). 

Although villages are eligible to receive lower interest rates than most other entities when 

they pledge the full faith and credit of their taxing authority to guarantee payment, bonds of 

less than one million dollars do not usually meet the minimum requirements for costeffective 

underwriting and can, as a result, be prohibitively expensive to issue. 

6.5 PHASE II STORMWATER PERMIT COMPLIANCE 

In 1990, EPA promulgated rules establishing Phase I of the National Pollutant Discharge 

Elimination System (NPDES) stormwater program. The Phase I program for MS4s required 

operators of medium and large MS4s, that is, those that generally serve populations of 100,000 

or greater, to implement a stormwater management program as a means to control polluted 

discharges from these MS4s. The Stormwater Phase II Rule extends coverage of the NPDES 

stormwater program to certain small MS4s but takes a slightly different approach to how the 

stormwater management program is developed and implemented. NYSDEC acts as the NPDES 





permit-issuing authority for the state and has issued requirements for two SPDES general permits 

for stormwater runoff. 

Polluted stormwater runoff is often transported to municipal separate storm sewer systems 

(MS4s) and ultimately discharged into local surface waters without treatment. The EPA's 

Stormwater Phase II Rule establishes an MS4 stormwater management program that is intended 

to improve the Nation's waterways by reducing the quantity of pollutants that stormwater picks 

up and carries into storm sewer systems during storm events. When these pollutants are 

deposited into nearby waterways, they can impair the waterways, thereby discouraging 

recreational use of the resource, contaminating drinking water supplies and interfering with the 

suitability of habitat for fish, other aquatic organisms, and wildlife. The EPA established six 

minimum measures outlining the Phase II program: 

Public Education and Outreach: Distributing educational materials and performing outreach to 

inform citizens about the impacts polluted stormwater runoff discharges can have on water 

quality. 

Public Participation/Involvement: Providing opportunities for citizens to participate in program 

development and implementation, including effectively publicizing public hearings and/or 

encouraging citizen representatives on a stormwater management panel. 

Illicit Discharge Detection and Elimination: Developing and implementing a plan to detect and 

eliminate illicit discharges to the storm sewer system, including developing a system map and 

informing the community about hazards associated with illegal discharges and improper disposal 

of waste). The Village has identified and mapped all outfall structures. As part of the field 

assessment completed for this Plan, the Village has mapped input structures such as catch basins, 

manholes and leaching wells, connectivity, and illicit discharges within the Mill Creek 

watershed. The Village has also adopted the local law for Illicit Discharge Detection and 

Elimination. 





Construction Site Runoff Control: Developing, implementing, and enforcing an erosion and 

sediment control program for construction activities that disturb one or more acres of land 

(controls could include silt fences and temporary stormwater detention ponds). The Village has 

adopted the local law for Stormwater Management and Erosion Control. 

Post-Construction Runoff Control: Developing, implementing, and enforcing a program to 

address discharges of post-construction stormwater runoff from new development and 

redevelopment areas. Applicable controls could include preventative actions such as protecting 

sensitive areas (e.g., wetlands) or the use of structural BMPs such as grassed swales or porous 

pavement. The Village has adopted the local law that requires post-construction runoff control. 

Pollution Prevention/Good Housekeeping: Developing and implementing a program with the 

goal of preventing or reducing pollutant runoff from municipal operations. The program must 

include municipal staff training on pollution prevention measures and techniques (e.g., regular 

street sweeping, reduction in the use of pesticides or street salt, or frequent catch basin cleaning). 

The Village continues improvements to stormwater infrastructure through retrofits and 

installation of new drainage structures throughout the Village. In addition, the Village has 

identified and mapped of all drainage outfalls and has mapped all interconnected drainage 

infrastructure within the Mill Creek watershed as part of this plan. The mapping will be used to 

enhance municipal maintenance procedures. Employee training sessions are planned on 

pollution prevention and good housekeeping procedures. 

This Plan overlaps all of the measures included in the SPDES Phase II implementation. The 

most significant overlaps are with regards to public outreach and education, illicit discharge 

detection and elimination, and pollution prevention/good housekeeping. The WMP provides 

recommendations for educational opportunities, includes infrastructure system mapping of 

surface water discharges, and identifies priority actions and target projects where municipal 

agencies resources can produce pollution reduction solutions. 





6.6 PERFORMANCE MONITORING AND ASSESSMENT 

In order to ensure smooth implementation and to measure progress toward meeting goals of this 

watershed management and corridor restoration plan, it is imperative to design a monitoring 

strategy for evaluating performance. It is necessary to have an adaptive management approach 

that is not linear but circular to allow for feedback and integration of results back into the plan. 

It is important to create decision points at which data collected can be reviewed and then a 

decision made as to whether to make changes to the plan or stay on course. The Mill Creek 

Watershed Management Plan should be reviewed periodically by a designated local official and 

staff in order to monitor the plan’s success. Implementation monitoring should be coordinated 

with other involved agencies and local officials. It should also be fully examined and amended 

as necessary in no more than five-year increments to address changing conditions. 

Water quality testing procedures should be in accordance with the established protocols. 

Volunteer Stream Monitoring: A Methods Manual (EPA 841-B47-003 and Volunteer Lake 

Monitoring: A Methods Manual (EPA 440-4-91-00) provide protocols and procedures for 

programs conducted by volunteers. Testing protocols and results should be reviewed by qualified 

professionals for quality control and quality assurance and to ensure that the data meets standards 

that allow for comparison to prior results or to data from other watersheds. 

Stream restoration projects should be monitored and evaluated in accordance with the USDA 

Stream Corridor Restoration: Principles, Processes and Practices, Chapter 6B. Post 

construction protocols. The plan should include monitoring procedures and performance criteria, 

monitoring parameters, methods duration, evaluating procedures, and adaptive management 

measures when required. 

Monitoring the implementation of nonpoint source control measures should be in accordance 

with the USEPA publications Techniques for Tracking, Evaluating, and Reporting the 

Implementation of Nonpoint Source Control Measures – Urban (2001) and Monitoring Guidance 

for Determining the Effectiveness of Nonpoint Source Controls (1997). Monitoring plans should 





include at a minimum an inspection program, maintenance oversight, and implementation 

confirmation. The inspection program should include a system to inspect all drainage structures 

in the drainage areas and data recording to establish a pattern of maintenance requirements. 

Maintenance oversight should include a centralized system to record monitoring results and 

maintenance information, standards forms to complete for each inspection and cleaning event, 

and management team to administer, coordinate and schedule the maintenance program. 

Implementation confirmation should include a record of the recommendations enacted, the 

success of each, their effectiveness in improving water quality and identification of 

modifications. Data management is important to the success of the monitoring effort. The system 

used should address quality control and quality assurance for handling and storage of data. 


Town of Port Jefferson 



7.0 REFERENCES 

Battelle. 2007. Final Report for Shellfish Pathogen TMDLs for 27 303(d)-listed Waters. 

USEPA. September. 

Burrell, C. C. 2007. Native Alternatives to Invasive Plants. Brooklyn, NY: Brooklyn 

Botanic Garden, Inc. 

Center for Watershed Protection. 1996. Design of Stormwater Filtering Systems. 

December. 

Center for Watershed Protection. 2005. Urban Watershed Restoration Series Manual 8 - 

Pollution Source Control Practices, Version 2.0. February. 

Center for Watershed Protection. 2008. Urban Watershed Restoration Series Manual 9 – 

Municipal Pollution Prevention/ Good Housekeeping Practices, Version 1.0. 

September. 

Fuss & O’Neil. 2010. Presentation to the Hempstead Harbor Protection Committee at 

Village of Sea Cliff. February. 

Gargiullo, M. B. 2007. A Guide to Native Plants of the New York City Region. 

Piscataway, NJ: Rutgers University Press. 

Long Island Power Authority. 2008. 2008 Long Island Population Survey. 

Long Island Regional Planning Board. 1982. The Long Island Segment of the Nationwide 

Urban Runoff Program. LIRPB: Hauppauge, NY. December. 

Luttenberg, D., Lev, D., & Feller, M. 1993. Native Species Planting Guide for New York 

City and Vicinity. New York City Parks & Recreation: Natural Resources Group 

Metropolitan Washington Council of Governments, Department of Environmental 

Programs. 1987. Controlling Urban Runoff: A Practical Manual for Planning and 

Designing Urban BMPs. July. 

National Oceanic and Atmospheric Administration. 2003. Coastal Nonpoint Pollution 

Control Program. Internet Website: http://www.ocrm.nos.noaa.gov/czm/6217 

New York State Department of Environmental Conservation. 1996. Urban/Stormwater 

Runoff Management Practices: Catalogue for Nonpoint Source Pollution 

Prevention and Water Quality Protection in New York State. November. 

New York State Department of Environmental Conservation. 1992. Reducing the Impacts 

of Stormwater Runoff from New Development. April. 

New York State Department of Environmental Conservation. 1997. New York Guidelines 

for Urban Erosion & Sediment Control. April. 

New York State Department of Environmental Conservation. 2001/August 2003. New 

York State Stormwater Management Design Manual. October. 

New York State Department of Environmental Conservation. 2002. The 2000 Atlantic 

Ocean/Long Island Sound Basin Watershed Inventory and Priority Waterbodies 

List – Volume 2. Bureau of Water; Watershed Assessment and Research. April. 





New York State Department of Environmental Conservation. 2008. 2008 Section 303(d) 

List of Impaired Water Requiring a TMDL/Other Strategy. 

Port Jefferson Village. 2009. Code of the Village of Port Jefferson, County of Suffolk, 

State of New York. General Code Publishers Corp.: Rochester, NY. 

Stewart, P. G., & Springer-Rushia, L. 1998. A Field Guide to Long Island’s Freshwater 

Wetlands. Stony Brook, NY: Museum of Long Island Natural Sciences. 

Suffolk County Real Property Tax Service Agency. 2004. Tax Maps. 

Suffolk County Department of Health Services. 2002. Water Table Contours Mapping. 

March. 

United States Department of Agriculture, Soil Conservation Service. 1986. Technical 

Release 55: Urban Hydrology for Small Watersheds. June. 

United States Department of Agriculture. 1998. Stream Visual Assessment Protocol. 

National Water and Climate Center Technical Note 99-1. December. 

United States Department of Agriculture. 1998. Stream Corridor Restoration: Principles, 

Processes and Practices. October. 

United States Environmental Protection Agency, Office of Water. 1993. Guidance 

Specifying Management Measures for Sources of Nonpoint Pollution in Coastal 

Waters. January. 

United States Fish and Wildlife Service. 1979. Classification of Wetlands and Deepwater 

Habitats of the United States. December. 




Maps

MIDLAND AV 

LONGACRE CT 

GLENWOOD LN 

MAIN ST 

CALIFORNIA AV 

Target Project 5 

Barnum Ave. 

Stormwater Mitigation, 

Habitat Restoration and 

Bridge Replacement 

CANTERBURY BLVD 

JAYNE AV 

213 

212 

") 

") 

8 146 

11 

145 

32 

11 

") 

") ") 17 

!R 19 

9 

144 ^_ !R 18 ") 12 

142 

7 

141 

!R 140 

") 

") ") 10 

") 

Reconstruct Pipe and Bulkhead, 

6 

") 

SAINT CHARLES 

143 ") 

251 

") !R 12 13 

13 

")") ")") ") 

34 

25 

") 16 Install WQI 

HOSPITAL 

138 

!(!( ")") 

20 14 

139 

") 

") 

35 

2 

^_ 

") 

!R 

") ") 

") ") 

") 

!R 

") ") ")") 

") 

")") 

") 

") 

^_^_^_ 

1 

33 

15 

245 

174 

244 

241 

137 27 

36 

248 

167 34 

175 

166 

Land Aquisition for Storm Drain 

37 

171 

243 

") 

23 

21 

") 

37 ") ") ^_ ") 170 

249 

Improvements and Pedestrian Access 

200 

242 

71 

^_^_^_^_ 

246 

40 36 

169 172 

35 

") ") 38 

")") 

") 

!R 

") 

") ") 

22 72 

247 

") 

") 

") ") 

^_ 

!( !( 

24 

203 202 201 250 

38 

39 

^_ 

12 ") ")") 25 

") 

26 

") 

204 

^_^_ 39 

199 ^_ 

168 173 ") 

59 ")") 

")") 198 

29 

60 

5 

197 

") ") 23 

176 ") ") 

Construct Bioretention Planting 

7 

28 

70 

6 

")") 

24 ")") 62 ") 

")") 58 

41 ") ")") 40 

196 

30 31 

177 

") 

") ") 

") 

") ") ")") 

") ") ") 

^_^_ !R ^_ 

73 

3 

61 

195 2 23 

214 

on Village Property 

215 

216 178 

")") 

") 63 

65 

8 

4 ^_^_ 

^_ 

179 

^_ !( ^_ 

219 

181 64 

68 

3 191 

194 

")") !( ^_ 

217 

33 

^_^_^_^_ 

22 

180 

") 69 

192 ") 240 

") 

") ") 66 

") 

239 

38 

218 

")") 

") ") 

") 

")") ") 14 

!R !R 

") 

4 

28 

193 

238 24 

30 

227 

Install WQI Prior to 133 

56 

237 

29 

39 

224 

13 67 

") ") Target Project 3 

") 

") 

")") 

") ") 

") ") ") 

")") 

^_^_ !( 2 

55 

134 

32 

21 

220 

20 

236 

Outfall to Culvert 

19 

")") 

")") 57 

135 

31 

18 

27 

235 

") 

2 ") 

225 

") 

") 

") 

182 

") 

!( 

!R 

234 

52 

54 

26 

!( 

17 

221 

!( 

226 

!( 

4 

") 

^_ 

") 

53 

27 

16 

37 

228 

229 

97 

136 

233 231 

75 

Install WQI's Prior to 

222 

95 ") ")") 

^_ ") 

") 

") 11 

43 

12 

98 

42 

9 

186 

^_ 

^_^_ 223 

187 77 

10 

") 

232 

13 

") 

") 

Outfall 74 

to Culvert 

^_ 

") 

8 

14 ") 

") ")") 

") 

")") ") 34 

184 

76 

96 

") 92 

10 

15 

!( 

183 ") ") 90 

91 

") 

") !R 78 

44 

205 

230 

188 

") 

") 94 

")") 

11 

")") !( 10 

") 45 

35 

^_^_ 

189 

185 

41 

79 ") 89 

87 88 ") 

207 

190 

!( 

")") 93 

") 

") 99 

161 

") 

^_ 

") ") ") 

206 

210 

25 

") ") 

158 

81 

86 

") ") 

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") 

110 

100 

46 

26 

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157 

80 

") 47 ")") 

") ") ")") 

114 

")") 

!( 36 

82 

") 

!( 

SCHOOL 

") 84 

!( 

208 

160 

83 

209 

85 

") ") 9 

3 

154 

112 

116 

159 

113 

49 

156 

48 ")") 

") 

")") ") 

155 

") 

") 

108 

") 

") 

^_ 1 


120 

") 153 

117 

") !( 

33 

!( 

") 

4 

") 

151 

115 

109 

107 

3 

32 

29 

") !( 

28 

") 

") ") ") 

!( 

!( !( 

211 

152 


118 

50 

Old Post Road WQV Infiltration 

30 

119 

102 

101 

31 

51 

132 

!( !( 

124 

103 

5 

Install Upgradiant 

106 ") ") 

") ") !( 

122 

!( !( 

") 6 

1 

17 

14 16 15 

Infiltration Structures on 

129 128 

") ") ") ") 

!( 

121 

!( 

") ") 7 

22 

8 

") 

!( 

!(!( 

All Roads in Reach 3 

123 

") ") ") ") !( 

") 

126 

105 104 

!( 

125 127 

")") 

131 

164 165 

") ") 5 

") ") 

!R 

1 

130 

2 

CEMETERY 

") 

163 

") ") 

162 

7 ") 

20 

6 

!( 

1 

149 

!( 

!( 

21 

3 

")") 

") 

150 

Install Infiltration Structures 

4 

!R ") 

5 

") 9 147 

on All Roads South of 

!( 

19 ") 

Route 25A and Reeves Road 

") 148 

SHELLDRAKE AV 

ARLINGTON AV 

HAWTHORNE ST 

MAIN ST 

JEFFERSON AV 

MICHIGAN AV 

EVANS PL 

OWASCO DR 

WHITTIER PL 

WASHINGTON AV 

BEACH ST 

Install Upgradiant 

Infiltration Structures on 

All Roads in Reach 2 

Land Aquisition for 

Storm Drain Wetland 


Brook Road 

Drainage Improvements, 

Habitat Restoration 

and Pond Dredging 

CALIFORNIA AV 

BAYVIEW TR 

BROOK RD 

LONGFELLOW ST 

EMERSON ST 

LOWELL PL 

LINCOLN AV 

HARDING ST 

PORT JEFFERSON HARBOR 

BROOK RD 

OLD POST RD 

ROOSEVELT AV 

LAUREL LN 

WILSON DR 

RUSTIC RD 

CAROLINE AV 

PRESIDENTS DR 

OAKES 

BARNUM AV 

HALLETT AV 

RT 25A 

RANDALL AV 

DARK HOLLOW RD 

RT 25A 

ARDEN PL 

MAPLE PL 

OLD POST RD 

E MAIN ST 

PASSWAY 

FLOYD ST 

SR 25A 

LIBERTY AV 

BLEEKER ST 

E BROADWAY 

VINEYARD PL 

ALICE ST 

PASSWAY 

THOMPSON ST 

WILLIS AV 

BUENA VISTA RD 

PASSWAY 

SPRING ST 

HIGH ST 

HIGH ST 

PROSPECT ST 

SOUTH ST 

JONES AV 

ROBBINS ST 

SR 25A 

GRANT ST 

TUTHILL ST 

AVENUE A 

HIGH ST 

DIVISION ST 

HARBOR VW 

CRESCENT RD 

Install WQI at All 

Commercial Property Outfalls 


Eastern Municipal Parking Lot 

Storm Drainage Improvements 

CAMPBELL ST 

WILLIAM ST 

HAWKINS AV 

MYRTLE AV 

CHESTNUT ST 

RT 25A 

INWOOD 

FRANKLIN ST 

MAIN 

JAMES WY 

BURKE RD 

MAIDEN LN 

REEVES RD 

NICHOLAS ST 

SOUNDVIEW DR 

JAYNE ST 

THOMPSON 

RD 

FIRST ST 

E BROADWAY 

PRINCESS TREE CT 

HIGH ST 

± 

STONY HILL RD 

RT 25A 

HIGH ST 

OVERTON RD 

WESTVIEW AV 

THORNE LN 

TEXACO AV 

BELLE TERRE RD 

OAKWOOD RD 

OLD POST RD 

SCAGGY HILL RD 

WALNUT ST 

LINDEN PL 

PILGRIM DR 

ROE LN 

Install Additional 

Infiltration Structures 

on Belle Terre Road 

Inwood Avenue and Myrtle Avenue 

Storm Drainage Improvements 

BREWSTER DR 

Install Infiltration Structures on 

All Roads South of Myrtle Avenue 

ELM ST 

PERRY 

SETAUKET 

18 

!( 

LIRR 

SHEEP PASTURE RD 

OAK ST 

BAY AV 

BAYLES AV 

WILSON ST 

DAYTON AV 

BROOK LN 

SR 112 

KEEWAYDIN CT 

COMSEQUOGUE RD 

PARK AV 


Watershed-Wide 

Drainage Infrastructure Maintenance Program 

HULSE RD 

OAK ST 

LAWRENCE 

AVIATION 

Legend 

WATERSHED BOUNDARY 

JURISDICTIONAL BOUNDARY 

^_ OUTFALL 

^_ GROUNDWATER SEEP 

!( LEACHING BASIN 

!R MANHOLE 

") CATCH BASIN 

PIPE RUNS 

CULVERT 

HARBORVIEW AV 

LIMITS OF REACH 1 




PORT JEFFERSON STATION/ 

TERRYVILLE 

WOODHULL AV 

13TH ST 

RADBURN LN 

WELDON LN 

Notes: 

1. See Detailed Target Project Descriptions in Plan Section 4.2.3. 

2. See Mitigation Recommendations on Table 4-4. 

JARVIN RD 

GAYMORE RD 

CLIFTON PL 

MONTROSE DR 

WOODHULL AV 

JEFFERSON BLVD 


ENGINEERING PLANNING CONSTRUCTION MANAGEMENT 

0 700 Feet 


MILL CREEK 


TARGET PROJECTS AND 

MITIGATION RECOMMENDATIONS 

MAP 8

H ST 

± 

Tidal Gate at Outfall 

May Not be Functioning 

^_ 

EVANS PL 

BROOK RD 

Culverted/Segmented 

Under Town Parking Lot 

Phragmites Infestation 

and Sediment Deposit 

^_ 

Potential Illicit Discharge 

^_ 

^_ 

^_ 

W BROADWAY 

RT 25A 


PASSWAY 

Bulkheaded Segment 

BAYVIEW TR 

Existing Undesignated 

Wetland Fed by Pipes 

from Seeps 

Vehicle Storage and 

Trash in Wetland 

Trash 

BARNUM AV 

^_^_ 

^_ 

^_ 

^_ 

^_^_ 

^_ 

^_ 

CHANGLER SQ 

Damaged Bulkhead, 

Erosion and 

Deteriorated Outfall 

Culverted Connection 

Can Not be Determined 


and Sediment Deposit 

ASCO DR 

Numerous Seeps 

Drain to Creek 

^_ 

^_ ^_ ^_ 

^_ 

^_ 

CAROLINE AV 

Narrow Shallow Segment 


Old Mill Pond 

Superfund Hazardous Waste Site 

with Future Mitigation 

Steep Slopes with 

Erosion in Some Locations 

Ballpark 

OAKS ST 

Culvert Blockage 

RANDALL AV 

Exposed Concrete 

Encased Sewer Lines 

^_ 

^_ 

NYSDEC Wetland with 

Some Wetlands Species 

and Many Invasives 

^_ 

Vernal Spring-Fed Wetland 

Impacted by Sediment Build-up 

^_^_ 

HALLETT AV 

^_ 

^_ 

^_ 

^_ 

Legend 

LONGFELLOW ST 


MILL CREEK 

^_ OUTFALL VILLAGE OF PORT JEFFERSON 

SOURCE: AERIAL, NEW YORK STATE GIS CLEARINGHOUSE, 2007 

EMERSON ST 

OLD POST RD 



0 200 Feet 

MILL CREEK 


HABITAT ASSESSMENT 

MAP 7

MIDLAND AV 

A 


PASSWAY 

BLEEKER ST 


GRANT ST 

HARBOR VW 

CRESCENT RD 

BURKE RD 

± 

SOUNDVIEW DR 

JAYNE ST 

E BROADWAY 

OAKWOOD RD 

PILGRIM DR 

B 

ROE LN 

JAMES WY 

BEACH ST 

HIGH ST 

E BROADWAY 

LONGACRE CT 

GLENWOOD LN 

MAIN ST 

CALIFORNIA AV 


JAYNE AV 

213 

CALIFORNIA AV 

212 

") 

") 

8 146 

11 

145 

32 

11 

") 

") ") 17 

!R 19 

9 

144 ^_ !R 18 ") 12 

142 

7 

141 

!R 140 

") 

") ") 10 

6 

") 

") 

SAINT CHARLES 

143 ") 

251 

") !R 12 13 

13 

")") ")") ") 

34 

25 

") 16 

HOSPITAL 

138 

!(!( ")") 

20 14 

139 

") 

") 

35 

2 

^_ 

") 

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") ") 

") 

!R 

") ") ")") 

") 

")") 

") 

") 

^_^_^_ 

1 

33 

15 

245 

174 

244 

241 

137 27 

36 

248 

167 34 

175 

166 

37 

171 

243 

") 

23 

21 

") 

37 ") ") ^_ ") 170 

200 

249 

242 

71 

^_^_^_^_ 

246 

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35 

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")") 

") 

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247 

") 

") 

") ") 

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24 

203 202 201 38 

39 

250 ^_ 

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") 

26 

") 

204 

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199 

168 173 ") 

59 ")") 

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29 

60 

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28 ") ") 23 

176 ") ") 70 

6 

")") 

24 ")") 62 ") 

")") 58 

41 ") ")") 40 

196 

31 

177 

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") 

") ") ")") 

") ") ") 

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61 

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216 178 

")") 

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65 

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219 

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68 

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194 

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") 

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") 

239 

38 

218 

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") 

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133 

30 

227 

56 

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29 

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67 

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220 

20 

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135 

31 

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225 

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182 

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!( 

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207 

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158 

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157 

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114 

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160 

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112 

116 

159 

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156 

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155 

") 

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120 

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117 

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115 

109 

107 

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") 

") ") ") 

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211 

152 

118 

50 

30 

119 

102 

101 

31 

51 

132 

!( !( 

124 

103 

5 

106 ") ") 

") ") !( 

122 

!( !( 

") 6 

1 

17 

14 16 15 

129 128 

") ") ") ") 

!( 

121 

!( 

") ") 7 

22 

8 

") 

!( 

!(!( 

123 

") ") ") ") !( 

") 

126 

105 104 

!( 

125 127 

")") 

131 

164 165 

") ") 5 

") ") 

!R 

1 

130 

2 

CEMETERY 

") 

163 

") ") 

162 

7 ") 

20 

6 

!( 

1 

149 

!( 

!( 

21 

3 

")") 

") 

150 

4 

!R ") 

5 

") 9 147 

!( 

19 ") 

") 148 

SHELLDRAKE AV 

ARLINGTON AV 

HAWTHORNE ST 

MAIN ST 

JEFFERSON AV 

MICHIGAN AV 

EVANS PL 

OWASCO DR 

WHITTIER PL 

WASHINGTON AV 

BAYVIEW TR 

BROOK RD 

LONGFELLOW ST 

EMERSON ST 

LOWELL PL 

LINCOLN AV 

BROOK RD 

HARDING ST 

BROOK RD 

OLD POST RD 

ROOSEVELT AV 

LAUREL LN 

WILSON DR 

RUSTIC RD 

CAROLINE AV 

PRESIDENTS DR 

OAKES 

BARNUM AV 

HALLETT AV 

RT 25A 

RANDALL AV 


RT 25A 

ARDEN PL 

MAPLE PL 

OLD POST RD 

E MAIN ST 

PASSWAY 

FLOYD ST 

THOMPSON ST 

VINEYARD PL 

SR 25A 

LIBERTY AV 

ALICE ST 

WILLIS AV 

PASSWAY 

SPRING ST 

HIGH ST 

PROSPECT ST 

SOUTH ST 

JONES AV 

TUTHILL ST 

AVENUE A 

ROBBINS ST 

SR 25A 

CAMPBELL ST 

HIGH ST 

DIVISION ST 

WILLIAM ST 

HAWKINS AV 

MYRTLE AV 

CHESTNUT ST 

RT 25A 

FRANKLIN ST 

MAIN 

THOMPSON 

INWOOD RD 

MAIDEN LN 

FIRST ST 

REEVES RD 

NICHOLAS ST 


HIGH ST 

STONY HILL RD 

RT 25A 

HIGH ST 

OVERTON RD 

WESTVIEW AV 

THORNE LN 

TEXACO AV 


OLD POST RD 


WALNUT ST 

LINDEN PL 

BREWSTER DR 

ELM ST 

PERRY 

SETAUKET 

18 

!( 

LIRR 


OAK ST 

BAY AV 

BAYLES AV 

WILSON ST 

DAYTON AV 

SR 112 

BROOK LN 

KEEWAYDIN CT 

LAWRENCE 

AVIATION 


HULSE RD 

OAK ST 

PARK AV 

RADBURN LN 

Legend 

HARBORVIEW AV 

C 



^_ 

OUTFALL 

PORT ^_ JEFFERSON GROUNDWATER SEEP STATION/ 

TERRYVILLE 






!R MANHOLE 


PIPE RUNS 

WOODHULL AV 

13TH ST 

MONTROSE DR 

WELDON LN 

JARVIN RD 

GAYMORE RD 

CLIFTON PL 

D 

CULVERT 

WOODHULL AV 




0 700 Feet 


MILL CREEK 


DRAINAGE STRUCTURE KEY MAP 

MAP 6

MIDLAND AV 

185 

79 

161 

25 

81 

") 80 

82 

160 

83 

ROBBIN 

89 

OF PORT JEFFERSON 

87 88 

SR 25A 

84 

") 

85 

86 

112 

")") 

") 

110 

93 

113 

HAWKINS AV 

114 

") ") 116 

") 

") 

") 

117 

115 

100 

118 

^_ 

!( 

120 

9 

CHESTNUT ST 

RT 25A 

1 

") 

") ") 

99 

FRANKLIN ST 

108 

") ") 

109 

MAIDEN LN 

HIGH ST 

107 

") 

") ") 

3 

!( 

MATCH TO DRAINAGE STRUCTURE MAP 6B 

47 

48 

WESTVIEW AV 


46 

") ") ") !( 

49 

4 

50 

± 

LIBERTY AV 

YD ST 

119 

122 

MAIN 

121 

123 

126 

") 

") 

FIRST ST 

124 

102 

106 

129 128 

105 

") ") 

") 

") ") 

") 

HIGH ST 

101 

103 

STONY HILL RD 

104 

!( 

8 

THORNE LN 

132 

51 

5 

") ") !( 

6 

!( 

!( 

7 

!( 

")") 

125 127 

RT 25A 

131 

BAY AV 

ALICE ST 

WILLIS AV 

MATCH TO DRAINAGE STRUCTURE MAP 6C 

CEMETERY 

163 

164 

REEVES RD 

") ") 

165 

162 

NICHOLAS ST 

") ") ") ") ") ") 

") 

") 

BAYLES AV 

OVERTON RD 

") 

5 

!R 

130 

") 

") ") 

") 

7 

6 

1 

!( 

TEXACO AV 

1 

WALNUT ST 

2 

LINDEN PL 

") 

") 

") 

WILSON ST 

ELM ST 

3 

4 

PERRY 

5 

SR 112 

AK ST 

DAYTON AV 

BROOK LN 

LAWRENCE 

AVIATION 

RADBURN LN 


TERRYVILLE 

Legend 



WELDON LN 

GAYMORE RD 

CLIFTON PL 

^_ OUTFALL 



!R MANHOLE 





JARVIN RD 


13TH ST 

MONTROSE DR 

PIPE RUNS 

WOODHULL AV 

D 



0 400 Feet 


MILL CREEK 


DRAINAGE STRUCTURE 

MAP 6D

E RD 

LA 

A 

E 

CALIFORNIA AV 

212 

± 

") 

") 

213 


CALIFO 

HAWTHORNE ST 

17 

30 

26 

32 

!( 

!( 

207 

!( 

!( !( 

35 

!( 

!( 

WHITTIER PL 

14 

31 

33 

28 

!( 

LONGFELLOW ST 

EMERSON ST 

29 

!( !( 

!( 

16 15 

LOWELL PL 

211 

41 

BROOK RD 

206 

208 

") 

!( 

") ") 

209 

210 

157 

MATCH TO DRAINAGE STRUCTURE MAP 6A 

OLD POST RD 

36 

LAUREL LN 

SCHOOL 

") ") 

") 

156 

155 

154 

") 

") ") ") 

") 

") 

152 

!( 

22 

151 

153 

189 

190 

OLD POST RD 

158 

159 

25 

FLOYD ST 

40 

!( 

161 

160 

79 

81 

80 

82 

83 

ROB 


LIBERTY AV 

89 

87 

SR 25A 

84 

88 

85 

86 

112 

SETAUKET 

JEFFERSON AV 

WASHINGTON AV 

LINCOLN AV 

HARDING ST 

ROOSEVELT AV 

WILSON DR 

RUSTIC RD 

!( 

18 

150 

") 

!( 

19 

PRESIDENTS DR 

149 

!R ") 

9 

20 

!( 

!( 

147 

") 

") 

21 

LIRR 

148 



OAK ST 

BAY AV 

ALICE ST 

WILLIS AV 

MATCH TO DRAINAGE STRUCTURE MAP 6D 

CEME 

KEEWAYDIN CT 


PARK AV 

OAK ST 

HARBORVIEW AV 

Legend 



^_ OUTFALL 



!R MANHOLE 






TERRYVILLE 


PIPE RUNS 

C 



0 400 Feet 


MILL CREEK 



MAP 6C

± 

B 

PASSWAY 


GRANT ST 

CRESCENT RD 

HARBOR VW 

BURKE RD 

Legend 

JAYNE ST 

SOUNDVIEW DR 

PILGRIM DR 

WATERSHED BOUNDARY ^_ OUTFALL 


JURISDICTIONAL BOUNDARY ^_ GROUNDWATER SEEP LIMITS OF REACH 2 




!R MANHOLE 


OAKWOOD RD 

BLEEKER ST 

E BROADWAY 

PIPE RUNS 

ROE LN 

JAMES WY 

E BROADWAY 

HIGH ST 

THOMPSON 

OLD POST RD 


THOMPSON ST 

CAMPBELL ST 

HIGH ST 

22 

5 

59 

58 

61 

65 

VINEYARD PL 

68 

") 

") 

") ") 

") 

33 

") 69 

") 

") ") ") 

133 

28 30 

56 

") ") 

29 

") 

") 

55 

134 

135 

") ") ") 

") 

") ") ") 57 

27 

")") ") 

2 ") 

!R ") 

54 

") 26 

!( 

!( 

!( 

4 

3 

97 

136 

75 

11 

") 

186 

95 ") 98 

") 

187 77 

10 

") 74 

") 

") 

") ") 

") 

") ") 96 

") 

") 76 

92 

") 

") 

90 

!R 78 

91 

") 

") 94 

") 

185 

SR 25A 

161 

") 

") 

10 

160 

72 

73 

79 

81 

MATCH TO DRAINAGE STRUCTURE MAP 6A 

80 

") ") ") 89 87 

") 

88 

") 

") ") 

86 

") ") 

") ") 

") 

82 

71 

70 

83 

PASSWAY 

PROSPECT ST 

SPRING ST 

JONES AV 

SOUTH ST 

8 

ROBBINS ST 

TUTHILL ST 

SR 25A 

84 

AVENUE A 

85 

WILLIAM ST 

")") 

") 

") ") 116 

") 

") 

") 

F PORT JEFFERSON ^_ 1 

112 

DIVISION ST 

HIGH ST 

110 

93 

113 

HAWKINS AV 

114 

117 

SAINT CHARLES 

HOSPITAL 

MYRTLE AV 

115 

100 

118 

") 

") 

!( 

120 

9 

CHESTNUT ST 

RT 25A 

") 

") ") 

99 

FRANKLIN ST 

108 

") ") 

119 

INWOOD RD 

MAIDEN LN 

109 

FIRST ST 

37 

34 

") ") 

32 

HIGH ST 

39 

31 

") ") 

") ") 

41 

") 

") 40 

") 

35 

36 

107 

38 


43 

") ") 42 

45 

47 

") ") 

48 

WESTVIEW AV 

3 

") ") 

!( 

50 

44 


46 

") ") ") !( 

49 

4 

BREWSTER DR 

RTY AV 

T 

MATCH TO DRAINAGE STRUCTURE MAP 6D 

MAIN 

122 

121 

123 

126 

102 

101 

51 

132 

124 

103 

5 

106 ") ") 

") !( 

") 

") 129 128 

") 

!( 

") 

") ") 

") ") 8 

") 

") ") ") 

!( 

") 

") 

105 104 

STONY HILL RD 

6 

!( 

7 



164 

0 400 Feet 

125 127 

165 

RT 25A 

HIGH ST 

131 

THORNE LN 


MILL CREEK 



MAP 6B

A 


± 

Legend 



^_ OUTFALL 



!R MANHOLE 


PIPE RUNS 





PASSWAY 


GRAN 

CULVERT 

BLEEKER ST 

E BROADWAY 

BEACH ST 

HIGH ST 

E MAIN ST 

LONGACRE CT 

GLENWOOD LN 

MAIN ST 

CALIFORNIA AV 


JAYNE AV 

CALIFORNIA AV 

") 

") 

213 

212 

HAWTHORNE ST 

ARLINGTON AV 

SHELLDRAKE AV 

MAIN ST 

17 

30 

26 

MICHIGAN AV 

32 


!( 

!( 

207 

!( 

!( !( 

!( 

!( 

EVANS PL 

OWASCO DR 

WHITTIER PL 

!( 

") 


35 

14 

31 

34 

33 

28 

!( 

27 

!( 

BAYVIEW TR 

!( 

!( !( 

BROOK RD 

!( 

206 

208 

") 

^_ 

") 

") ") 

!( 

") ") 

") 

^_ 

^_ 

^_ 

^_ 

211 

248 

200 

233 

") 

") 

") 

241 

247 

203 202 201 ") 

") 

204 

199 

") 

") 

7 5 

198 197 

6 

")") 

196 

3 

") 

") 

!R ^_^_ 

") ")") 

^_^_ 

^_ 195 2 

4 

") ^_ 

") ") ^_ 

!( 

3 191 

194 

")") 

192 

^_^_ ") 240 

239 

193 

") 238 

^_ ")") 

237 39 

21 

^_ ") 

20 

236 

19 

18 ^_ ^_ 

235 

LONGFELLOW ST 

EMERSON ST 

29 

LOWELL PL 

16 15 

BROOK RD 

10 

11 

41 

BROOK RD 

9 

8 

16 

OLD POST RD 

234 

17 

209 

210 

36 

232 

205 

25 

LAUREL LN 

0 400 Feet 

8 

145 

32 

11 

") 

!R 17 

") 19 

144 

9 

^_ 

") !R 

18 ") 12 

142 

7 

141 

!R 

") 

140 

") 10 

6 

") ") 

143 

") 

251 

") 

") ") 

") 

!R 12 13 

13 

") ") 

") 16 

138 

") 

!(!( ")") 

20 14 

139 

1 

") 

2 

") 

^_ 

") 33 

!R 

15 

245 ") ") ^_ 

") ^_ 

!R 174 

244 ") 137 27 

^_ 

") 

") 

") 

167 34 

175 

") 

") 

166 

") 

^_ 

171 

243 

23 

21 

37 

") ") ^_ 

") 170 

249 

242 

^_ 

^_^_ 

") 

246 

40 36 

169 172 

35 !R 

") 

") 

") 

") 22 72 

") 

^_ 

!( ") !( ") 24 

250 ^_ 38 

12 

") 

") 

26 

") 25 

^_^_ 39 

^_ 

173 ") 

") 

29 

28 

168 

59 

") 

60 

") 

30 31 

") 23 

176 ") 

")") 

24 

") 

") 

62 

58 

177 

") ") 

") 

61 73 

23 

214 

215 ") 216 178 ") 

") 

") 

63 ") ") 65 

179 

^_ 

219 

181 64 

68 

!( 

^_ 

217 

22 

180 

") 69 

38 

218 

") 

") 

") 66 

") 

14 

!R 

") ") 

!R 

") 

24 

227 

56 

224 

13 

67 

220 

") 

55 

") ") ") ") 

") ") ") 57 

!( 

")") 

")") 

225 

") 

") 

182 

52 

54 

221 

226 

53 

37 

229 ") 

") 228 

231 

^_ 

75 

222 

12 

186 

^_^_ 

223 

187 77 

13 

") 

") 

") 

") 

^_ 

14 

") 

184 ") 

") ") 

") 

") 

") 

15 

") 

") 

183 

!R 78 

") ") 

230 

188 

") !( 

10 

189 

") 185 

CAROLINE AV 

SCHOOL 

OAKES 

146 

HALLETT AV 

BARNUM AV 

157 

") ") 

") 

156 

155 

154 

") 

") 

") ") 

") 

") 

152 

!( 

151 

153 

MAPLE PL 

190 

MATCH TO DRAINAGE STRUCTURE MAP 6C 

11 

RANDALL AV 

22 

RT 25A 

RT 25A 

ARDEN PL 

OLD POST RD 

158 

159 

PASSWAY 

25 

LIBERTY AV 

FLOYD ST 

SR 25A 

161 

") 

") 

VINEYARD PL 

160 

THOMPSON ST 

79 

81 

SOUTH ST 

80 

") ") 

76 

90 

") ") ") 

") 

") ") 

82 

71 

70 

SPRING ST 

83 

PASSWAY 

HIGH ST 

PROSPECT ST 

MATCH TO DRAINAGE STRUCTURE MAP 6B 

JONES AV 

74 

89 

") 

8 

ROBBINS ST 


87 

88 

") ") 

") ") 

") 

SR 25A 


MILL CREEK 



MAP 6A 

1 

TUTHILL ST 

84 

AVENUE A 

85 

C

MIDLAND AV 


PASSWAY 

BLEEKER ST 


GRANT ST 

HARBOR VW 

CRESCENT RD 

BURKE RD 

SOUNDVIEW DR 

JAYNE ST 

E BROADWAY 

OAKWOOD RD 

± 

PILGRIM DR 

ROE LN 

VILLAGE WOODS RD 

BEACH ST 

E BROADWAY 

HIGH ST 

JAMES WY 

LONGACRE CT 

QUINTIN CT 

GLENWOOD LN 


JAYNE AV 

CALIFORNIA AV 

SHELLDRAKE AV 

ARLINGTON AV 

HAWTHORNE ST 

MAIN ST 

MICHIGAN AV 

EVANS PL 

OWASCO DR 

WHITTIER PL 

BAYVIEW TR 

BROOK RD 

^_^_ ^_^_ ^_ 

LONGFELLOW ST 

LOWELL PL 

4 

3 

EMERSON ST 

7 

6 5 

20 

19 

41 

18 

10 

11 

BROOK RD 

16 

9 

8 

^_ 

^_^_^_^_ 

^_^_ 

^_ 

^_ 

^_^_ 

25 

OLD POST RD 

2 

^_ 

^_ ^_ ^_ ^_ 

21 

17 

CAROLINE AV 

LAUREL LN 

40 

^_ ^_ 

^_ 

^_^_ 

^_^_^_^_ 

^_ 

^_ 

^_ 

^_^_ 

^_ 

^_^_^_ 

36 

26 

39 

38 

29 28 

30 

31 

24 23 22 

12 

13 

32 

OAKS ST 

14 

15 

37 

BARNUM AV 

HALLETT AV 

SCHOOL 

33 

35 

RANDALL AV 

27 

34 

RT 25A 

MAPLE PL 

ARDEN PL 

WYNN LN 

OLD POST RD 

E MAIN ST 

PASSWAY 

FLOYD ST 

THOMPSON ST 

VINEYARD PL 

RT 25A 

SOUTH ST 

SPRING ST 

PROSPECT ST 

PASSWAY 

JONES AV 

TUTHILL ST 

AVENUE A 

ROBBINS ST 

SR 25A 

CAMPBELL ST 

DIVISION ST 

WILLIAM ST 

HIGH ST 

HAWKINS AV 


LIBERTY AV 

HIGH ST 

SAINT CHARLES 

HOSPITAL 

1 

MYRTLE AV 

CHESTNUT ST 

^_ 

RT 25A 

FRANKLIN ST 

THOMPSON 

INWOOD RD 

MAIDEN LN 


HAWKINS AV 

HIGH ST 

STONY HILL RD 

RT 25A 

WESTVIEW AV 

THORNE LN 

OLD POST RD 



BREWSTER DR 

REEVES RD 

FRUITA ST 

JEFFERSON AV 

WASHINGTON AV 

LINCOLN AV 

HARDING ST 

ROOSEVELT AV 

WILSON DR 

RUSTIC RD 

PRESIDENTS DR 


ALICE ST 

WILLIS AV 

CEMETERY 

NICHOLAS ST 

OVERTON RD 

TEXACO AV 

WALNUT ST 

LINDEN PL 

ELM ST 

PERRY 

OAKLAND AV 

LIRR 


OAK ST 

BAY AV 

BAYLES AV 

WILSON ST 

DAYTON AV 

SR 112 

SETAUKET 

BROOK LN 


KEEWAYDIN CT 

PARK AV 

LAWRENCE 

AVIATION 

HULSE RD 

OAK ST 

RADBURN LN 

HARBORVIEW AV 

CLIFTON PL 


TERRYVILLE 

WELDON LN 

GAYMORE RD 

WOODHULL AV 

JARVIN RD 

MONTROSE DR 

Legend 



^_ 

^_ 

OUTFALL 

GROUNDWATER SEEP 

13TH ST 

MILL CREEK 

WOODHULL AV 




0 700 Feet 


MILL CREEK 


OUTFALLS 

MAP 5

MIDLAND AV 

HARBOR HILLS DR 

EAST GATE RD 

AV 


PASSWAY 

BLEEKER ST 


GRANT ST 

HARBOR VW 

CRESCENT RD 

CLIFF RD 

BURKE RD 

SOUNDVIEW DR 

JAYNE ST 

E BROADWAY 

OAKWOOD RD 

± 

PILGRIM DR 

ROE LN 


BEACH ST 

E BROADWAY 

HIGH ST 

JAMES WY 

LN 

T 

LONGACRE CT 

QUINTIN CT 

GLENWOOD LN 


JAYNE AV 

SHELLDRAKE AV 

ARLINGTON AV 

OWASCO DR 

EVANS PL 

VILLAGE, TOWN, COUNTY 

CO-OWNED PROPERTY 

CALIFORNIA AV 

HAWTHORNE ST 

MAIN ST 

MICHIGAN AV 

OWASCO DR 

WHITTIER PL 

BAYVIEW TR 

BROOK RD 

LONGFELLOW ST 

EMERSON ST 

LOWELL PL 

BROOK RD 

OLD POST RD 

LAUREL LN 

BARNUM AV 

CAROLINE AV 

PASSWAY 

OAKS ST 

HALLETT AV 

SCHOOL 

W BROADWAY 

RANDALL AV 

ATLANTIC BV 

RT 25A 

MAPLE PL 

ARDEN PL 

WYNN LN 

OLD POST RD 

E MAIN ST 

PASSWAY 

FLOYD ST 

THOMPSON ST 

VINEYARD PL 

RT 25A 

SOUTH ST 

SPRING ST 

PROSPECT ST 

PASSWAY 

JONES AV 

TUTHILL ST 

AVENUE A 

ROBBINS ST 

SR 25A 

CAMPBELL ST 

HIGH ST 

DIVISION ST 

WILLIAM ST 


LIBERTY AV 

HIGH ST 

SAINT CHARLES 

HOSPITAL 

HAWKINS AV 

MYRTLE AV 

CHESTNUT ST 

FRANKLIN ST 

RT 25A 

THOMPSON 

INWOOD RD 

MAIDEN LN 


HAWKINS AV 

HIGH ST 

STONY HILL RD 

RT 25A 

WESTVIEW AV 

THORNE LN 

OLD POST RD 



THOMPSON 

BREWSTER DR 

SCRAGGY HILL RD 

C 

REEVES RD 

FRUITA ST 

JEFFERSON AV 

WASHINGTON AV 

LINCOLN AV 

HARDING ST 

ROOSEVELT AV 

WILSON DR 

RUSTIC RD 

PRESIDENTS DR 


ALICE ST 

WILLIS AV 

CEMETERY 

NICHOLAS ST 

OVERTON RD 

TEXACO AV 

WALNUT ST 

LINDEN PL 

ELM ST 

PERRY 

OAKLAND AV 

SETAUKET 

LIRR 


OAK ST 

BAY AV 

BAYLES AV 

WILSON ST 

DAYTON AV 

BROOK LN 

SR 112 

MAP 


KEEWAYDIN CT 

PARK AV 

LAWRENCE 

AVIATION 

HULSE RD 

OAK ST 

RADBURN LN 

HARBORVIEW AV 

CLIFTON PL 

GAYMORE RD 

Legend 


TERRYVILLE 

WELDON LN 

WOODHULL AV 

JARVIN RD 


STATE OF NEW YORK 

MONTROSE DR 

MILL CREEK 


13TH ST 


SUFFOLK COUNTY WATER AUTHORITY 

RECHARGE BASIN 

COUNTY OF SUFFOLK 

TOWN OF BROOKHAVEN 

SOURCE: SUFFOLK COUNTY REAL PROPERTY 

JARVIN RD 


ENGINEERING PLANNING 

CONSTRUCTION MANAGEMENT 

0 700 Feet 


MILL CREEK 


MUNICIPAL LANDS AND 

RECHARGE BASINS 

MAP 4

MIDLAND AV 

AV 

AV 


HILL CRESCENT RD 

PASSWAY 

BLEEKER ST 


GRANT ST 


HARBOR VW 

CRESCENT RD 


CLIFF RD 

BURKE RD 


SOUNDVIEW DR 

JAYNE ST 

E BROADWAY 


EAST GATE RD 

EAST GATE 

OAKWOOD RD 

± 

PILGRIM DR 

ROE LN 


BEACH ST 

E BROADWAY 

HIGH ST 

JAMES WY 

LONGACRE CT 

LONGACRE CT 

QUINTIN CT 

GLENWOOD LN 


JAYNE AV 

CALIFORNIA AV 

SHELLDRAKE AV 

ARLINGTON AV 

HAWTHORNE ST 

MAIN ST 

MICHIGAN AV 

OWASCO DR 

EVANS PL 

OWASCO DR 

WHITTIER PL 

BAYVIEW TR 

BROOK RD 

LONGFELLOW ST 

EMERSON ST 

LOWELL PL 

BROOK RD 

OLD POST RD 

LAUREL LN 

BARNUM AV 

CAROLINE AV 

OAKS ST 

HALLETT AV 

SCHOOL 

W BROADWAY 

RANDALL AV 

ATLANTIC BV 

RT 25A 

MAPLE PL 

WYNN LN 

OLD POST RD 

E MAIN ST 

ARDEN PL 

PASSWAY 

FLOYD ST 

THOMPSON ST 

VINEYARD PL 

RT 25A 

SOUTH ST 

SPRING ST 

PROSPECT ST 

PASSWAY 

JONES AV 

TUTHILL ST 

AVENUE A 

ROBBINS ST 

SR 25A 

CAMPBELL ST 

HIGH ST 

DIVISION ST 

WILLIAM ST 


LIBERTY AV 

HIGH ST 

SAINT CHARLES 

HOSPITAL 

HAWKINS AV 

MYRTLE AV 

CHESTNUT ST 

FRANKLIN ST 

RT 25A 

THOMPSON 

INWOOD RD 

MAIDEN LN 


HAWKINS AV 

STONY HILL RD 

RT 25A 

WESTVIEW AV 

THORNE LN 

OLD POST RD 



BREWSTER DR 

N COUNTRY RD 

REEVES RD 

FRUITA ST 

SETAUKET 

JEFFERSON AV 

WASHINGTON AV 

LINCOLN AV 

HARDING ST 

ROOSEVELT AV 

WILSON DR 

RUSTIC RD 

PRESIDENTS DR 


LIRR 


OAK ST 

ALICE ST 

WILLIS AV 

BAY AV 

CEMETERY 

NICHOLAS ST 

OVERTON RD 

BAYLES AV 

TEXACO AV 

WALNUT ST 

LINDEN PL 

ELM ST 

PERRY 

WILSON ST 

DAYTON AV 

OAKLAND AV 

HIGHLAND BV 

HIGHLAND BV 

PORT JEFFERSON RAILROAD STA 

SR 112 

RAILROAD A 

RAILROAD A 

PATCHOGUE RD 

MAP 

MAP 

BROOK LN 


KEEWAYDIN CT 

LAWRENCE 

AVIATION 

HULSE RD 

HULSE RD 

OAK ST 

PARK AV 

RADBURN LN 

CHERUB LN 

HARBORVIEW AV 


TERRYVILLE 

WELDON LN 

CLIFTON PL 

GAYMORE RD 

WOODHULL AV 

JARVIN RD 

Legend 

WATERSHED BOUNDARY LANDUSE 

MILL CREEK 

RESIDENTIAL 

VACANT 

COMMERCIAL 

RECREATION AND ENTERTAINEMNT 

COMMUNITY SERVICE 

INDUSTRIAL 

PUBLIC SERVICE 

WILD, FORESTED, CONSERVATION AND PUBLIC LANDS 

UNKNOWN 


13TH ST 

MONTROSE DR 

GAYMORE RD 

GAYMORE RD 

JARVIN RD 

JARVIN RD 

SOURCE: LANDUSE, SUFFOLK COUNTY REAL PROPERTY 



0 700 Feet 


MILL CREEK 


LAND USE 

MAP 3

MIDLAND AV 

AV 

AV 



PASSWAY 

BLEEKER ST 


GRANT ST 


HARBOR VW 

CRESCENT RD 


CLIFF RD 

BURKE RD 


SOUNDVIEW DR 

JAYNE ST 

E BROADWAY 


EAST GATE RD 

EAST GATE 

OAKWOOD RD 

± 

PILGRIM DR 

ROE LN 


BEACH ST 

E BROADWAY 

HIGH ST 

JAMES WY 

T 

LONGACRE CT 

LONGACRE CT 

QUINTIN CT 

GLENWOOD LN 


JAYNE AV 

CALIFORNIA AV 

SHELLDRAKE AV 

ARLINGTON AV 

HAWTHORNE ST 

MAIN ST 

MICHIGAN AV 

OWASCO DR 

EVANS PL 

OWASCO DR 

WHITTIER PL 

140 

150 

BAYVIEW TR 

100 

BROOK RD 

LONGFELLOW ST 

EMERSON ST 

160 

LOWELL PL 

80 

120 

60 

160 

20 

40 

BROOK RD 

170 

20 

40 

OLD POST RD 

10 

30 

LAUREL LN 

BARNUM AV 

CAROLINE AV 

50 

10 

60 

OAKS ST 

70 

HALLETT AV 

80 

60 

RANDALL AV 

90 

70 

50 

W BROADWAY 

80 

40 

SCHOOL 

ATLANTIC BV 

RT 25A 

10 

MAPLE PL 

40 

ARDEN PL 

WYNN LN 

60 

50 

70 

OLD POST RD 

E MAIN ST 

PASSWAY 

20 

8090 

FLOYD ST 

VINEYARD PL 

RT 25A 

LIBERTY AV 

THOMPSON ST 

SPRING ST 

PROSPECT ST 

PASSWAY 

SOUTH ST 

JONES AV 

HIGH ST 

TUTHILL ST 

AVENUE A 

ROBBINS ST 

SR 25A 

CAMPBELL ST 

HUNT ST 

HIGH ST 

DIVISION ST 

WILLIAM ST 


150 

40 

60 

100 

110 

80 

120 

130 

140 

100 

150 

190 

200 

210 

220 

120 

SAINT CHARLES 

HOSPITAL 

180 

140 160 

HAWKINS AV 

160 170 

180 

200 

MYRTLE AV 

CHESTNUT ST 

FRANKLIN ST 

RT 25A 

220 

INWOOD 

THOMPSON 

230 

RD 

MAIDEN LN 

240 


HAWKINS AV 

HIGH ST 

120 

STONY HILL RD 

RT 25A 

250 

140 

WESTVIEW AV 

180 

160 

260 

200 

THORNE LN 

OLD POST RD 


220 


BREWSTER DR 

N COUNTRY RD 

REEVES RD 

FRUITA ST 

JEFFERSON AV 

SETAUKET 

WASHINGTON AV 

LINCOLN AV 

HARDING ST 

ROOSEVELT AV 

180 

WILSON DR 

RUSTIC RD 

140160 

PRESIDENTS DR 

120 


LIRR 

140 


120 100 80 

160 

180 

190 

OAK ST 

ALICE ST 

WILLIS AV 

BAY AV 

220 

CEMETERY 

230 

230 

240 

240 

260 

220 

210 

250 

250 

NICHOLAS ST 

OVERTON RD 

BAYLES AV 

180 

TEXACO AV 

190 

WALNUT ST 

LINDEN PL 

ELM ST 

PERRY 

WILSON ST 

DAYTON AV 

BROOK LN 

OAKLAND AV 

HIGHLAND BV 

HIGHLAND BV 

PORT JEFFERSON RAILROAD STA 

SR 112 

RAILROAD A 

RAILROAD A 

PATCHOGUE RD 

MAP 

MAP 


KEEWAYDIN CT 

LAWRENCE 

AVIATION 

HULSE RD 

HULSE RD 

OAK ST 

PARK AV 

RADBURN LN 

CHERUB LN 

HARBORVIEW AV 

CLIFTON PL 


TERRYVILLE 

WELDON LN 

GAYMORE RD 

WOODHULL AV 

JARVIN RD 

MONTROSE DR 

13TH ST 


GAYMORE RD 

GAYMORE RD 

JARVIN RD 

JARVIN RD 



0 700 Feet 


MILL CREEK 


TOPOGRAPHY 

MAP 2

V 


BLEEKER ST 


GRANT ST 

CRESCENT RD 

VALLEY RD 

VALLEY RD 

HARBOR VW 

CLIFF RD 

BURKE RD 


SOUNDVIEW DR 

JAYNE ST 

E BROADWAY 

EAST GATE 

OAKWOOD RD 

PILGRIM DR 

± 

ROE LN 


E BROADWAY 

LONGACRE CT 

GLENWOOD LN 

JAYNE AV 

QUINTIN CT 

GLENWOOD LN 

CALIFORNIA AV 

HAWTHORNE ST 

SHELLDRAKE AV 

ARLINGTON AV 

MAIN ST 

MICHIGAN AV 

OWASCO DR 

EVANS PL 

OWASCO DR 

BEACH ST 

BAYVIEW TR 

BROOK RD 

REACH #4 

LONGFELLOW ST 

EMERSON ST 

BARNUM AV 

CAROLINE AV 

PASSWAY 

REACH #3 

CHANGLER SQ 

REACH #2 

OAKS ST 

HALLETT AV 

SCHOOL 

W BROADWAY 

RANDALL AV 

RT 25A 

E MAIN ST 

ARDEN PL 

WYNN LN 

REACH #1 

THOMPSON ST 

SOUTH ST 

SPRING ST 


OLD POST RD 

PASSWAY 

VINEYARD PL 

RT 25A 

HIGH ST 

PROSPECT ST 

PASSWAY 

JONES AV 

HIGH ST 

TUTHILL ST 

AVENUE A 

ROBBINS ST 

SR 25A 

CAMPBELL ST 

DIVISION ST 

WILLIAM ST 

HIGH ST 

SAINT CHARLES 

HOSPITAL 

HAWKINS AV 

MYRTLE AV 

CHESTNUT ST 

FRANKLIN ST 

RT 25A 

JAMES WY 

THOMPSON 

INWOOD RD 


MAIDEN LN 

WESTVIEW AV 

OLD POST RD 


BREWSTER DR 


HIGH ST 


WHITTIER PL 

LOWELL PL 

BROOK RD 

OLD POST RD 

LAUREL LN 

LIBERTY AV 

FLOYD ST 

FRUITA ST 

VANTAGE CT 

REEVES RD 

HAWKINS AV 

STONY HILL RD 

RT 25A 

N COUNTRY RD 

CR 

THORNE LN 

HULSE RD 

SETAUKET 


OAK ST 

JEFFERSON AV 

WASHINGTON AV 

LINCOLN AV 

HARDING ST 

ROOSEVELT AV 

WILSON DR 

RUSTIC RD 

PRESIDENTS DR 


LIRR 


KEEWAYDIN CT 

PARK AV 

KEEWAYDIN CT 

OAK ST 

BAYVIEW AV 

ALICE ST 

WILLIS AV 

BAY AV 

CEMETERY 

LAWRENCE 

AVIATION 

MIDLAND AV 

NICHOLAS ST 

OVERTON RD 

BAYLES AV 

TEXACO AV 

RADBURN LN 

WALNUT ST 

LINDEN PL 

ELM ST 

PERRY 

WILSON ST 

DAYTON AV 

BRETON RD 

BROOK LN 

OAKLAND AV 

HIGHLAND BV 

HIGHLAND BV 

SR 112 

CHERUB LN 

RAILROAD AV 

RAILROAD AV 

MAPL 

HARBORVIEW AV 

CLIFTON PL 

GAYMORE RD 


TERRYVILLE 

WELDON LN 

WOODHULL AV 

JARVIN RD 

MONTROSE DR 

13TH ST 





Legend 



MILL CREEK 

0 700 Feet 


MILL CREEK 



MAP 1 

GAYMORE RD

H ST 

± 

1. Repair Flood Gate 

^_ 

EVANS PL 

BROOK RD 

2. Daylight Creek 

14. Provide Evergreen Screen 

^_ 

10. Remove Sediment 

^_ 

^_ 

^_ 

W BROADWAY 

3. Dredge Sediment 

4. Remove Phragmities 

RT 25A 

6. Remove OT34 

BAYVIEW TR 

24. Remove Debris 

22. Remove Debris 

19. Provide Evergreen Screen 

9. Revegetate Banks 

11. Install WQI 

12. Remove Phragmities and Sediment 

BARNUM AV 

^_^_ 

^_ 

^_ 

^_ 

^_ 

^_^_ 

PASSWAY 

^_ 

CHANGLER SQ 

^_ 

16. Reconstruct Culvert 

5. Repair Bulkhead 


8. Stabilize Banks 

13. Plant Native Grasses 

15. Increase Views 

33. Assess Pipe Culvert 

23. Extend Pedestrian Walk 

ASCO DR 

32. Plant Native Grasses 


25. Acquire Properties 

^_ 

^_ ^_ ^_ 

^_ 

^_ 

CAROLINE AV 

26. Dredge Old Mill Pond 

27. Remove Phragmities 

28. Reconstruct Pipe Culvert 

17. Acquire Property 


20. Remove Invasive Species 

21. Stabilize Banks 

OAKS ST 


^_ 

^_ 

31. Direct WQV to Vernal Stream 

^_ 

^_^_ 

HALLETT AV 

GENERAL RECOMMENDATIONS ^_ 

RANDALL AV 

Legend 

^_ 

OUTFALL 

LONGFELLOW ST 

MILL CREEK 

^_ 

^_ 

^_ 

34. Establish Maintenance Easement 

35. Local School or Environmental Group Stewardship 

36. Sponsor Creek Clean-ups 

37. Require Redevelopment Buffers 

38. Install Leaching Pools and/or WQI's 

39. Develop Pedestrian Creek Walk 

Note: 

See Table 5-1 for Detailed Description of Projects 


SCHOOL 

PEDESTRIAN TRAIL 


EMERSON ST 



0 200 Feet 


MILL CREEK 


CREEK CORRIDOR 

RESTORATION RECOMMENDATIONS 

MAP 9 

OLD POST RD



APPENDIX A 

GIS Data Collection Tables for Outfalls, 

Catch Basins, Leaching Basins and 

Manholes


MILL CREEK WATERSHED MANAGEMENT PLAN 

TABLE A-1 

OUTFALLS AND GROUNDWATER SEEPS 

GIS FIELD DATA COLLECTION 

Cashin OT Village Outfall 

No. No. 

Photo Photo2 Bank Size Material Shape Access Pipe Info / Notes Pipe Info / Notes Pipe Info / Notes Point ID 

1 R061508A~files\Photo-342798 R061508A~files\Photo-343799 6" Metal Circular Easy 6cmp curb gutter outfalls into conc curb gutter unable to verify start of pipe 13 

2 R052709A~files\Photo-194784 R052709A~files\Photo-195784 Head Concrete Circular Difficult outfall blocked by vegetation moderate flow from st w/o outfall pipe to sd-666/CB-194? 89 

3 R052208A~files\Photo-047769 R052208A~files\Photo-048769 Right 4" Concrete Circular Easy ne 4rcp - poss roof drain groundwater seep 3 

4 R052208A~files\Photo-049770 Right 4" PVC Circular Easy ne 4pvc to mh? groundwater seep 4 

5 R052208A~files\Photo-065771 R052208A~files\Photo-066771 Left 4" PVC Circular Easy nw 4pvc into reach4 groundwater seep 21 

6 R052208A~files\Photo-067771 Left 6" PVC Circular Easy e 6pvc possibly from MH-3 reach4 groundwater seep 22 

7 R052208A~files\Photo-068771 Left



TABLE A-2 

CATCH BASINS 


Cashin 

CB No. 

Village Structure 

No. 

Photo Photo2 Leaching Condition Casting Type 

No. of 

Castings 

Casting 

Condition 

Odor Pipe Info / Notes Pipe Info / Notes Pipe Info / Notes Pipe Info / Notes Point ID 

1 SD-312/847 R061508A~files\Photo-331797 No Part Full (Wet) Curb Box/Grate Single Good No w ?rcp to sd-313/CB-7 1 

2 SD-311/848 R061508A~files\Photo-332797 No Part Full (Wet) Curb Box/Grate Single Good No unable to verify pipes 3 

3 SD-309 R061508A~files\Photo-333798 Unknown Part Full (Wet) Grate (Circular) Single Good No possible pipe to sd-308/CB-4 4 

4 SD-308 R061508A~files\Photo-334798 No Part Full (Dry) Curb Box/Grate Single Good No s 18rcp to sd-307/CB-5 possible pipe to sd-309/CB-3 5 

5 SD-307 R061508A~files\Photo-335798 No Part Full (Wet) Curb Box/Grate Single Good No n 18rcp to sd-308/CB-4 6 

6 SD-310 R061508A~files\Photo-336798 No Part Full (Wet) Curb Box/Grate Single Good No se 30rcp to sd-309?/CB-3 nw 30?rcp to sd-313/CB-7 7 

7 SD-313 R061508A~files\Photo-337798 No Good Curb Box/Grate Single Good No se ?rcp to sd-310/CB-6 nw ?rcp to sd-314/CB-131 ne ?rcp to sd-312/847 /CB-1 8 

8 SD-755 R061508A~files\Photo-341798 Unknown Full (Dry) Grate (Circular) Single Good No 12 

9 SD-120 R061508A~files\Photo-344799 No Part Full (Dry) Grate (Circular) Single Good No s 15rcp to sd-119/CB-10 14 

10 SD-119 R061508A~files\Photo-345799 No Good Grate (Rectangular) Single Good No n 15rcp to sd-120 /CB-9 s 15rcp to sd-118/CB-13 15 

11 SD-117 R061508A~files\Photo-346799 R061508A~files\Photo-347799 No Part Full (Wet) Grate (Rectangular) Single Loose No unknown se pipe to sd-115/CB-12 grooved gutter to building of req. discharge investigation 16 

12 SD-115 R061508A~files\Photo-348799 No Good Grate (Circular) Single Good No n 6pvc to sd-117/CB-11 sw 8rcp to sd-118/CB-13 17 

13 SD-118 R061508A~files\Photo-349799 No Good Grate (Rectangular) Single Good No nw 15rcp to sd-119/CB-10 ne 8rcp to sd-115/CB-12 sw unk pipe to sd-27/CB-16 18 



16 SD-027 R061508A~files\Photo-352799 Unknown Good Grate (Rectangular) Single Good No access to drainage culvert probable ne pipe to sd-115/CB-12 probable sw pipe to sd-050/CB-20 21 

17 SD-029 R061508A~files\Photo-353800 Unknown Full (Wet) Grate (Rectangular) Single Good No 22 

18 SD-028 R061508A~files\Photo-354800 No Good Curb Box/Grate Single Good No unable to verify pipes 23 

19 SD-102 R061508A~files\Photo-355800 No Good Curb Box/Grate Single Good No nw 24rcp to sd-101/CB-141 se 24rcp to sd-050/CB-20 24 

20 SD-050 R061508A~files\Photo-356800 No Part Full (Wet) Curb Box/Grate Single Good No access to drainage culvert sw to sd-126 (then of-011) /MH-2 ne to sd-027/CB-16 nw 24rcp to sd-102/CB-19 25 

21 SD-038 R061508A~files\Photo-357800 R061508A~files\Photo-358800 No Good Curb Box/Grate Single Good No unable to verify pipes cb blocked by parked veh. possible w pipe to sd-026/CB-23 26 

22 SD-024 R061508A~files\Photo-359800 No Good Curb Box/Grate Single Good No n 12rcp to sd-026/CB-23 sw 15rcp to sd-025/CB-24 27 

23 SD-026 R061508A~files\Photo-360800 No Part Full (Dry) Curb Box/Grate Single Good No s 12rcp to sd-024/CB-22 unable to verify if n pipe ex. 28 

24 SD-025 R061508A~files\Photo-361800 No Good Curb Box/Grate Single Good No ne 15rcp to sd-024/CB-22 probable sw pipe to sd-039/CB-25 29 

25 SD-039 R061508A~files\Photo-362800 No Good Grate (Rectangular) Single Good No probable ne pipe to sd-025/CB-24 s ?rcp to sd-040/CB-62 30 

26 SD-770 R061211A~files\Photo-294794 No Good Curb Box/Grate Single Good No w 15rcp to ? n 15rcp to sd-771/CB-27 1 

27 SD-771 R061211A~files\Photo-295794 No Good Curb Box/Grate Single Good No s 15rcp to sd-770/CB-26 n 6pvc to cb(no sd#)/CB-28 n 6pvc to cb(no sd#) /CB-29 2 

28 no sd# R061211A~files\Photo-296794 R061211A~files\Photo-297794 No Part Full (Wet) Grate (Rectangular) Single Good No s 6pvc to sd-771/CB-27 3 

29 no sd# R061211A~files\Photo-298794 R061211A~files\Photo-299794 No Part Full (Wet) Grate (Rectangular) Single Good No s 6pvc to sd-771/CB-27 4 

30 SD-772 R061211A~files\Photo-300794 No Part Full (Dry) Curb Box/Grate Single Good No w 15pvc to sd-770?/CA-26 6 

31 SD-769 R061211A~files\Photo-303795 R061211A~files\Photo-304795 No Part Full (Wet) Curb Box/Grate Single Good No w 15rcp to leaching mh/no sd# /MH-4 n 15rcp to sd-773/CB-32 10 

32 SD-773 R061211A~files\Photo-305795 No Good Curb Box/Grate Single Good No s 15rcp to sd-769/CB-31 11 

33 no sd# R061211A~files\Photo-306795 No Part Full (Dry) Curb Box/Grate Single Good No sw 12pvc to sd-765?/CB-133 12 

34 SD-776 R061211A~files\Photo-307795 Unknown Full (Wet) Curb Box/Grate Single Good No 13 

35 SD-347 R061211A~files\Photo-308795 Unknown Full (Wet) Single Good No cb completely submerged 14 

36 SD-348 R061211A~files\Photo-309795 Unknown Full (Dry) Curb Box/Grate Single Good No 15 











47 SD-359 R061211A~files\Photo-320796 Unknown Full (Dry) Grate (Rectangular) Single Good No 33 


49 SD-360 R061211A~files\Photo-322796 Yes Part Full (Wet) Curb Box/Grate Single Good No w 18cpep to sd-361/CB-48 35 



52 SD-045 R060808A~files\Photo-196784 No Part Full (Wet) Curb Box/Grate Single Good No capped w 12rcp to ? s 24rcp to sd-046/CB-53 unknown if pipe ex to sd-014/CB-56 2 

53 SD-046 R060808A~files\Photo-197784 No Part Full (Wet) Curb Box/Grate Single Good No n 24rcp to sd-045/CB-52 s 24rcp to sd-047/CB-54 capped w 12rcp to ? 3 

54 SD-047 R060808A~files\Photo-198784 Unknown Part Full (Wet) Curb Box/Grate Single Good No n 24rcp to sd-046/CB-53 possible w pipe to culvert? 4 

55 SD-013 R060808A~files\Photo-199784 No Good Curb Box/Grate Single Good No nw 12rcp to sd-014/CB-56 5 

56 SD-014 R060808A~files\Photo-200784 No Part Full (Dry) Curb Box/Grate Single Good No s 15?rcp to sd-012/CB-57 unknown if pipe ex to sd-045/CB-52 6 

57 SD-012 R060808A~files\Photo-201784 No Good Curb Box/Grate Single Good No n 15?rcp to sd-014/CB-56 possible pipe to sd-047/CB-54 7 

58 no sd# R060808A~files\Photo-202785 R060808A~files\Photo-203785 No Part Full (Wet) Curb Box/Grate Single Good No nw 8cpep to sd-022/CB-59 s 2pvc to building 8 

59 SD-022 R060808A~files\Photo-204785 No Part Full (Wet) Curb Box/Grate Single Good No se 8pvc to cb/no sd# /CB-58 nw 15rcp to sd-023/CB-60 e 18rcp to sd-758/CB-72 9 

60 SD-023 R060808A~files\Photo-205785 No Part Full (Wet) Curb Box/Grate Single Good No se 15rcp to sd-022/CB-59 s ? to sd-021/CB-61 10 

61 SD-021 R060808A~files\Photo-206785 No Part Full (Dry) Curb Box/Grate Single Good No n ? to sd-23/CB-60 w ? to sd-040/CB-62 11 

62 SD-040 R060808A~files\Photo-207785 No Part Full (Wet) Curb Box/Grate Single Good No n 18rcp to ? SD-039/CB-25 s 24rcp to sd-041/CB-63 e ? to sd-021/CB-61 12 

63 SD-041 R060808A~files\Photo-208785 No Part Full (Dry) Curb Box/Grate Single Good No n 24rcp to sd-040/CB-62 s 24rcp to sd-042/CB-64 13 

64 SD-042 R060808A~files\Photo-209785 No Part Full (Wet) Curb Box/Grate Single Good No n 24rcp to sd-041/CB-63 w 24rcp to sd-552/CB-181 e ? to sd-020/CB-65 14 

65 SD-020 R060808A~files\Photo-210785 No Good Curb Box/Grate Single Good No w ? to sd-042/CB-64 15 


67 SD-044 R060808A~files\Photo-212786 No Part Full (Wet) Curb Box/Grate Single Good No s 18?rcp to sd-045?/CB-52 e ? to sd-019/CB-68 17 

68 SD-019 R060808A~files\Photo-213786 No Part Full (Wet) Curb Box/Grate Single Good No s 18?rcp to sd-018/CB-69 w ? to sd-044/CB-67 18 

69 SD-018 R060808A~files\Photo-214786 No Part Full (Wet) Curb Box/Grate Single Good No n 18?rcp to sd-019/CB-68 19 

70 SD-757 R060808A~files\Photo-215786 No Part Full (Dry) Curb Box/Grate Single Good No n ? to sd-756/CB-71 20 

71 SD-756 R060808A~files\Photo-216786 R060808A~files\Photo-217786 No Good Curb Box/Grate Single Broken (Minor) No s ? to sd-757/CB-70 w 18rcp to sd-758/CB-72 8? in capped steel pipe to? Sewer overflow? 21 

72 SD-758 R060808A~files\Photo-218786 No Part Full (Wet) Curb Box/Grate Single Good No e 18rcp to sd-756/CB-71 w 18rcp to sd-022/CB-59 s ? to sd-759/CB-73 22 

73 SD-759 R060808A~files\Photo-219786 No Part Full (Dry) Curb Box/Grate Single Good No n ? to sd-758/CB-72 23 

74 SD-760 R060808A~files\Photo-220786 No Good Curb Box/Grate Single Good No w 12rcp to sd-016/CB-76 assume nw ?rcp to sd-761/CB-75 24 

75 SD-761 R060808A~files\Photo-222786 No Good Curb Box/Grate Single Good No assume se ?rcp to sd-760/CB-74 26 

76 SD-016 R060808A~files\Photo-223787 No Part Full (Dry) Curb Box/Grate Single Good No e 15?rcp to sd-760/CB-74 s 24?rcp to sd-017/CB-78 probable n pipe to sd-015/CB-77 28 

77 SD-015 R060808A~files\Photo-224787 No Part Full (Dry) Curb Box/Grate Single Good No unable to verify pipes probable s pipe to sd-016/CB-76 29 

78 SD-017 R060808A~files\Photo-225787 No Good Curb Box/Grate Single Good No n 24rcp to sd-016/CB-76 probable w pipe to sd-048? /MH-10 30 

79 SD-332 R060808A~files\Photo-228787 No Good Curb Box/Grate Single Good No n 32rcp to sd-048 (mh) /MH-10 s 32rcp to sd-008/331 /CB-81 36 

80 SD-009/330 R060808A~files\Photo-229787 R060808A~files\Photo-230787 No Good Curb Box/Grate Single Good No e 15rcp to sd-008/331 /CB-81 37 

81 SD-008/331 R060808A~files\Photo-231787 No Part Full (Wet) Curb Box/Grate Single Good No n 24rcp to sd-332/CB-79 s 24rcp to sd-006/328 /CB-83 w 15rcp to sd-009/330 /CB-80 e ?rcp to sd-010/CB-90 38 

82 SD-007/012 R060808A~files\Photo-232787 No Good Curb Box/Grate Single Good No se 15rcp to sd-006/328 /CB-83 w 12rcp to sd-566/CB-160 39 

83 SD-006/328 R060808A~files\Photo-233788 No Good Curb Box/Grate Single Good No n 24rcp to sd-008/331 /CB-81 s 24rcp to sd-327/CB-84 e ?rcp to sd-011/CB-89 40 

84 SD-327 R060808A~files\Photo-234788 Unknown Part Full (Wet) Curb Box/Grate Single Good No nw 24?rcp to sd-006-328 /CB-83 se 36rcp to sd-005/CB-85 n ?rcp to sd-004/CB-87 41 

85 SD-005 R060808A~files\Photo-235788 No Part Full (Wet) Curb Box/Grate Single Good No w 36rcp to sd-327/CB-84 e 36rcp to sd-326/CB-112 n ?rcp to sd-003/CB-86 42 

86 SD-003 R060808A~files\Photo-236788 No Good Curb Box/Grate Single Good No s ?rcp to sd-005/CB-85 43 

87 SD-004 R060808A~files\Photo-237788 No Full (Wet) Curb Box/Grate Single Good No s ?rcp to sd-327/CB-84 e 15rcp to cb(no sd#) /CB-88 44 

88 no sd# R060808A~files\Photo-238788 R060808A~files\Photo-241788 No Good Curb Box/Grate Single Good No w 15rcp to sd-004/CB-87 45 

89 SD-011 R060808A~files\Photo-239788 No Part Full (Dry) Curb Box/Grate Single Good No sw ?rcp to sd-006/328 /CB-83 46 

90 SD-010 R060808A~files\Photo-240788 No Good Curb Box/Grate Single Good No sw ?rcp to sd-008/331 /CB-81 47 

91 SD-764 R060808A~files\Photo-242788 No Part Full (Wet) Curb Box/Grate Single Good No sw 15rcp to sd-004/CB-83 ne 15rcp to sd-762/CB-92 48 

Page 1 of 3



TABLE A-2 

CATCH BASINS 


Cashin 

CB No. 


No. 



Castings 

Casting 

Condition 


92 SD-762 R060808A~files\Photo-243789 No Part Full (Wet) Curb Box/Grate Single Good No sw 15rcp to sd-764/CB-91 s 15rcp to sd-763/CB-93 ne 15rcp to sd-747/CB-95 49 

93 SD-763 R060808A~files\Photo-244789 No Good Curb Box/Grate Single Good No n 15rcp to sd-762/CB-92 50 

94 SD-748 R060808A~files\Photo-245789 No Part Full (Dry) Curb Box/Grate Single Good No n 15rcp to sd-747/CB-95 51 

95 SD-747 R060808A~files\Photo-246789 No Curb Box/Grate Single Good No s 15rcp to sd-748/CB-94 probable w 15rcp to sd-762/CB-92 cb mh cover buried by landscap probable ne 15rcp to sd-746/CB-97 52 

96 SD-745 R060808A~files\Photo-247789 No Part Full (Dry) Curb Box/Grate Single Good No nw 15rcp to sd-746/CB-97 ne 15rcp to sd-744/CB-98 se 15rcp to cb(no sd#) /CB-100 53 

97 SD-746 R060808A~files\Photo-248789 No Good Curb Box/Grate Single Good No se 15rcp to sd-745/CB-96 cb mh buried/inaccessible 54 

98 SD-744 R060808A~files\Photo-249789 No Good Curb Box/Grate Single Good No sw 15rcp to sd-745/CB-96 cb mh buried/inaccessible 55 


100 no sd# R060808A~files\Photo-251789 No Good Curb Box/Grate Single Good No ne 15rcp to sd-743/CB-99 nw 15rcp to sd-745/CB-96 57 

101 SD-737 R060808A~files\Photo-253790 No Part Full (Wet) Curb Box/Grate Single Good No n 15rcp to sd-739/CB-107 w 15rcp to sd-738/CB-102 s 15rcp to sd-318/CB-103 59 

102 SD-738 R060808A~files\Photo-254790 No Part Full (Wet) Curb Box/Grate Single Good No e 15rcp to sd-737/CB-101 60 

103 SD-318 R060808A~files\Photo-255790 No Part Full (Wet) Curb Box/Grate Single Good No n 15rcp to sd-737/CB-101 possible sw 15rcp to sd-319/CB-106 s 15rcp to sd-317/CB-104 61 

104 SD-317 R060808A~files\Photo-256790 No Good Curb Box/Grate Single Good No n 15rcp to sd-318/CB-103 62 

105 SD-316 R060808A~files\Photo-257790 No Full (Dry) Curb Box/Grate Single Good No 63 

106 SD-319 R060808A~files\Photo-258790 No Part Full (Dry) Grate (Rectangular) Single Good No unable to verify all pipes w 24rcp pipe to sd-851? /CB-126 64 


108 SD-741 R060808A~files\Photo-260790 Unknown Full (Dry) Curb Box/Grate Single Good No unable to verify pipes 66 

109 SD-740 R060808A~files\Photo-261790 No Part Full (Dry) Curb Box/Grate Single Good No unable to verify pipes 78 


111 SD-326 R060808A~files\Photo-263791 No Good Curb Box/Grate Single Good No w 36rcp to sd-005/CB-85 se 36rcp to sd-325/CB-113 n ?rcp to sd-002/CB-110 80 

112 SD-326 R060808A~files\Photo-264791 No Good Curb Box/Grate Single Good No w 36rcp to sd-005/CB-85 n ?rcp to sd-002/CB-110 e 36rcp to sd-325/CB-113 86 

113 SD-325 R060808A~files\Photo-265791 No Good Curb Box/Grate Single Good No w 36?rcp to sd-326/CB-112 n ?rcp to sd-001/CB-114 e 36rcp to sd-324/CB-117 89 


115 SD-855 R060808A~files\Photo-267791 No Good Curb Box/Grate Single Good No nw 30?rcp to sd-854/CB-116 91 

116 SD-854 R060808A~files\Photo-268791 No Part Full (Dry) Curb Box/Grate Single Good No se 30?rcp to sd-855/CB-115 sw ?rcp to sd-324/CB-117 92 

117 SD-324 R060808A~files\Photo-269791 No Part Full (Wet) Curb Box/Grate Single Good No ne ?rcp to sd-854/CB-116 se 36?rcp to sd-323/CB-118 nw 36?rcp to sd-325/CB-113 93 

118 SD-323 R060808A~files\Photo-270791 No Part Full (Wet) Curb Box/Grate Single Good No probable nw 36?rcp to sd-324/CB-117 probable se 36?rcp to sd-322/CB-122 probable ne ?rcp to sd-852/CB-120 94 

119 SD-853 R060808A~files\Photo-271791 No Good Curb Box/Grate Single Good No ne 18rcp to sd-740/CB-109 probable w rcp to sd-323/CB-118 95 

120 SD-852 R060808A~files\Photo-272791 No Part Full (Dry) Curb Box/Grate Single Good No probable w rcp to sd-323/CB-118 96 

121 no sd# R060808A~files\Photo-273792 No Good Curb Box/Grate Single Good No s 15?rcp to sd-735? /CB-164 n 24rcp to sd-322/CB-122 97 

122 SD-322 R060808A~files\Photo-274792 No Part Full (Wet) Grate (Rectangular) Single Good No s 24rcp to cb(no sd#) /CB-121 nw 36?rcp to sd-323/CB-118 se 36?rcp to sd-321/CB-124 se 18rcp to cb(no sd#) /CB-123 100 

123 no sd# R060808A~files\Photo-275792 No Good Curb Box/Grate Single Good No nw 18rcp to sd-322/CB-122 s 18rcp to sd-734/CB-165 101 

124 SD-321 R060808A~files\Photo-276792 No Good Grate (Rectangular) Single Good No nw 36?rcp to sd-322/CB-122 se 36?rcp to sd-320/CB-125 102 

125 SD-320 R060808A~files\Photo-277792 No Part Full (Wet) Curb Box/Grate Single Good No nw 36?rcp to sd-321/CB-124 se 36?rcp to sd-314/CB-131 ne ?rcp to sd-851/CB-126 104 

126 SD-851 R060808A~files\Photo-278792 No Part Full (Wet) Grate (Rectangular) Single Good No possible see rcp to sd-850/CB-129 sw ?rcp to sd-320/CB-125 105 

127 no sd# R060808A~files\Photo-279792 No Part Full (Wet) Grate (Rectangular) Single Good No sw 24rcp to sd-320/CB-125 ne 24rcp to sd-318/CB-103 106 

128 no sd# R060808A~files\Photo-280792 No Part Full (Dry) Curb Box/Grate Single Good No s 8pvc to sd-850/CB-129 107 

129 SD-850 R060808A~files\Photo-281792 Unknown Good Grate (Rectangular) Single Good No n 8pvc to cb(no sd#) /CB-128 unable to verify other pipes probable w rcp to sd-320/CB-125 108 

130 SD-315 R060808A~files\Photo-282792 No Part Full (Dry) Grate (Rectangular) Single Good No unable to verify pipes probable sw rcp to sd-314/CB-131 113 

131 SD-314 R060808A~files\Photo-283793 No Good Curb Box/Grate Single Good No probable ne rcp to sd-315/CB-138 nw 36?rcp to sd-320/CB-125 se 36?rcp to sd-313/CB-7 114 

132 SD-? R060808A~files\Photo-284793 Unknown Full (Dry) Curb Box/Grate Single Good No 128 

133 SD-765 R060808A~files\Photo-285793 R060808A~files\Photo-286793 Unknown Collapsing Grate (Circular) Single Collapsing No 129 

134 SD-766 R060808A~files\Photo-287793 R060808A~files\Photo-288793 No Part Full (Dry) Curb Box/Grate Single Broken (Minor) No se 18?cpep to sd-767/CB-767 130 



137 SD-051 R052908A~files\Photo-175782 No Good Curb Box/Grate Single Good No n 12rcp to sd-055/CB-244 w 18rcp to sd-052/CB-243 6 

138 SD-060 R052908A~files\Photo-176782 No Part Full (Dry) Curb Box/Grate Single Good No s 12rcp to sd-052/CB-243 7 

139 SD-059 R052908A~files\Photo-177782 Unknown Grate (Circular) Single Good No unable to verify pipe exists 8 

140 SD-071 R052908A~files\Photo-178782 No Part Full (Wet) Curb Box/Grate Single Good No e 24rcp to sd-101/CB-141 13 

141 SD-101 R052908A~files\Photo-179782 No Good Curb Box/Grate Single Good No w 24rcp to sd-071/CB-140 se 24rcp to sd-102/CB-19 sw 24rcp? to ? 14 

142 SD-062 R052908A~files\Photo-184783 No Part Full (Wet) Curb Box/Grate Single Good No w 12cpep to sd-061/CB-143 s 8?cmp to mh(no sd#) /MH-6 23 

143 SD-061 R052908A~files\Photo-185783 No Part Full (Dry) Grate (Rectangular) Single Good No e 12cpep to sd-062/CB-142 25 

144 SD-063 R052908A~files\Photo-186783 No Full (Wet) Curb Box/Grate Single Good No possible s pipe to mh (no sd#) /MH-7 29 

145 SD-064 R052908A~files\Photo-187783 No Full (Wet) Curb Box/Grate Single Good No possible s pipe to mh (no sd#) /MH-8 30 

146 SD-069 R052908A~files\Photo-188783 No Full (Wet) Curb Box/Grate Single Good No s 12cmp to mh (no sd#) /MH-11 32 

147 SD-710 R052808A~files\Photo-142779 No Good Curb Box/Grate Double Good No sw 12rcp to sd-711/CB-148 22 

148 SD-711 R052808A~files\Photo-143779 No Good Curb Box/Grate Double Good No ne 12rcp to sd-710/CB-147 23 

149 SD-712 R052808A~files\Photo-146779 No Good Curb Box/Grate Double Good No e 18rcp to mh (no sd#) /MH-9 unable to verify w pipe exists Closed System (leaching manhole MH-9) 38 

150 SD-713 R052808A~files\Photo-147779 No Good Curb Box/Grate Double Good No e 18rcp to mh (no sd#) /MH-9 41 

151 SD-706 R052808A~files\Photo-152780 R052808A~files\Photo-153780 No Part Full (Wet) Curb Box/Grate Single Good No ne 12cmp to cb(no sd#) /CB-152 69 

152 no sd# R052808A~files\Photo-154780 No Part Full (Dry) Curb Box/Grate Single Good No sw 12cmp to sd-706/CB-151 73 

153 no sd# R052808A~files\Photo-155780 R052808A~files\Photo-156780 No Good Curb Box/Grate Single Good No sw 8cmp to cb(no sd#) /CB-154 unable to verify pipe to sd564/CB-155 74 

154 no sd# R052808A~files\Photo-157780 No Good Curb Box/Grate Single Good No ne 8cmp to cb(no sd#) /CB-153 75 

155 SD-564 R052808A~files\Photo-158780 Yes Good Grate (Circular) Single Good No s 18cmp to cb(no sd#) /CB-153 76 

156 SD-565 R052808A~files\Photo-159780 No Part Full (Wet) Curb Box/Grate Single Good No s 24rcp to sd-564/CB-155 77 

157 SD-563 R052808A~files\Photo-160781 No Part Full (Wet) Curb Box/Grate Single Good No se 12cmp to ? 81 

158 SD-865 R052808A~files\Photo-161781 No Part Full (Dry) Curb Box/Grate Single Good No e 15rcp to sd-857/CB-159 90 

159 SD-857 R052808A~files\Photo-162781 No Part Full (Dry) Curb Box/Grate Single Good No w 15rcp to sd-856/CB-158 unable to verify ne pipe exists probable 3 pipe to sd-566/CB-160 91 

160 SD-566 R052808A~files\Photo-163781 No Part Full (Wet) Curb Box/Grate Single Good No e 24?rcp? to ? n 15rcp to sd-567/CB-161 96 


162 SD-732 R052808A~files\Photo-165781 No Good Curb Box/Grate Single Good No n 24rcp to sd-734? /CB-165 148 

163 SD-733 R052808A~files\Photo-166781 No Part Full (Dry) Curb Box/Grate Single Good No possible e pipe to sd-732/CB-162 unable to verify pipe size 149 

164 SD-735 R052808A~files\Photo-167781 R052808A~files\Photo-168781 No Good Grate (Rectangular) Single Broken (Minor) No possible e pipe to sd-734/CB-165 153 

165 SD-734 R052808A~files\Photo-169781 No Good Curb Box/Grate Single Good No s 24rcp to sd-732/CB-162 n 24rcp to sd-321? /CB-124 possible w pipe to sd-735/CB-164 154 

166 SD-056 R052709A~files\Photo-101775 Unknown Part Full (Wet) Grate (Circular) Single Good No s 8rcp to of-018?/OT-38 e 15rcp to sd-057/CB-167 2 

167 SD-057 R052709A~files\Photo-102775 Unknown Part Full (Wet) Grate (Circular) Single Good No w 15rcp to sd-056/CB-166 s 12rcp to of-019/OT-37 3 

168 SD-130 R052709A~files\Photo-104775 No Full (Dry) Grate (Rectangular) Single Good No 6 

169 no sd# R052709A~files\Photo-106775 No Part Full (Wet) Curb Box/Grate Single Good No n 12cpep to sd-128/CB-170 13 

170 SD-128 R052709A~files\Photo-107775 R052709A~files\Photo-193784 Yes Full (Wet) Grate (Circular) Single No s 12cpep to cb(no sd#) /CB-169 n 18cmp to sd-127/CB-171 14 

171 SD-127 R052709A~files\Photo-109775 Yes Full (Wet) Grate (Circular) Single Good No w 18cmp to mh(no sd#) /MH-12 s 18cmp to sd-128/CB-170 25 

172 SD-132 R052709A~files\Photo-110776 R052709A~files\Photo-111776 Unknown Full (Wet) Grate (Circular) Single Good No unknown - submerged 28 

173 SD-133 R052709A~files\Photo-112776 Unknown Full (Dry) Curb Box/Grate Single Broken (Major) No 30 

174 SD-124 R052709A~files\Photo-113776 Yes Full (Dry) Grate (Circular) Single Good No unable to verify pipe exist 35 

175 SD-125 R052709A~files\Photo-114776 Yes Full (Wet) Grate (Circular) Single Good No unable to verify pipe exist 36 

176 SD-134 R052709A~files\Photo-116776 No Full (Wet) Curb Box/Grate Single Good No possible se pipe to sd-135/CB-177 48 

177 SD-135 R052709A~files\Photo-117776 No Part Full (Wet) Curb Box/Grate Single Good No s ?cmp to sd-136/CB-178 possible nw pipe to sd-134/CB-176 49 

178 SD-136 R052709A~files\Photo-118776 No Full (Wet) Grate (Rectangular) Single Good No n ?cmp to sd-135/CB-177 50 

179 SD-137 R052709A~files\Photo-119776 Unknown Full (Wet) Grate (Circular) Single Good No unknown 51 

180 SD-553 R052709A~files\Photo-120777 Unknown Curb Inlet Single Good No unknown 55 

181 SD-552 R052709A~files\Photo-122777 No Part Full (Wet) Curb Box/Grate Single Good No s 15cpep to mh(no sd#) /MH-13 possible pipe to sd-553/CB-180 57 

182 no sd# R052709A~files\Photo-125777 No Grate (Circular) Single Good No shute to culvert 61 




TABLE A-2 

CATCH BASINS 


Cashin 

CB No. 


No. 



Castings 

Casting 

Condition 


183 no sd# R052709A~files\Photo-127777 No Part Full (Wet) Grate (Rectangular) Single Good No w 18cpep to sd-560/LB-25 ne 18cpep to sd-558/CB-184 77 

184 SD-558 R052709A~files\Photo-128777 No Good Grate (Rectangular) Single Good No sw 18cpep to cb(no sd#) /CB-183 n 12pvc to sd-557/CB-185 ne 24cpep to sd-559/CB-186 80 

185 SD-557 R052709A~files\Photo-129777 No Part Full (Dry) Grate (Rectangular) Single Good No s 12pvc to sd-558/CB-184 81 

186 SD-559 R052709A~files\Photo-130778 R052709A~files\Photo-131778 No Part Full (Wet) Curb Box/Grate Single Good No sw 24cpep to sd-558/CB-184 se rcp to double grate cb shute to drainage culvert rcp utilized to turn culvert 82 

187 no sd# -see 559 R052709A~files\Photo-132778 R052709A~files\Photo-133778 No Good Curb Box/Grate Double Good No nw rcp to sd-559/CB-186 shute to drainage culvert rcp utilIzed to connect to sd-559/CB-186 83 

188 SD-561 R052709A~files\Photo-134778 No Good Curb Box/Grate Single Good No n 18rcp to sd-562/LB-15 s 18rcp to leaching cb(no sd#) /CB-190 84 

189 SD-563 R052709A~files\Photo-135778 No Good Curb Box/Grate Single Broken (Minor) No s 18rcp to sd-561/CB-188 85 

190 no sd# R052709A~files\Photo-136778 Yes Part Full (Wet) Grate (Circular) Single Good No n 18rcp to sd-561/CB-188 e 18cpep to sd-560/LB-25 86 

191 no sd# R052208A~files\Photo-050770 Yes Full (Wet) Grate (Circular) Single Good No n 4cpep to mh? /MH-3 5 

192 SD-670 R052208A~files\Photo-052770 R052208A~files\Photo-053770 No Part Full (Wet) Grate (Rectangular) Single Good No unable to determine - flow moderate flow from reach 4 10 

193 SD-671 R052208A~files\Photo-054770 R052208A~files\Photo-055770 No Part Full (Wet) Grate (Rectangular) Single Good No n 12cpep to sd-670/CB-192 e 12cpep to sd-666/CB-194 s 8rcp? to sd-672? /CB-239 11 

194 SD-666 R052208A~files\Photo-057770 R052208A~files\Photo-058770 No Part Full (Wet) Grate (Rectangular) Single Good No w 12cpep to sd-671/CB-193 s 12cpep to sd-672/CB-239 n 12cpep to sd-667/CB-195 12 

195 SF-667 R052208A~files\Photo-059770 No Part Full (Dry) Grate (Rectangular) Single Good No s 12cpep to sd-666/CB-194 17 

196 SD-668 R052208A~files\Photo-060771 No Part Full (Wet) Grate (Rectangular) Single Good No nw 12cpep to sd-669/CB-197 sw 12cpep to sd-670/CB-192 18 

197 SD-669 R052208A~files\Photo-061771 R052208A~files\Photo-062771 No Part Full (Wet) Grate (Rectangular) Single Good No nw 12cpep to cb(no sd#) /CB-198 se 12cpep to sd-668/CB-196 19 

198 no sd# R052208A~files\Photo-063771 R052208A~files\Photo-064771 No Part Full (Wet) Curb Box/Grate Single Good No se 12cpep to sd-669/CB-197 cb for reach5 20 

199 SD-591 R052208A~files\Photo-069771 No Good Curb Box/Grate Single Good No ne 24rcp to sd-592/CB-247 sw 24rcp to cb/no sd# n 18rcp to sd-590/CB-200 29 


201 SD-594 R052208A~files\Photo-071772 No Good Curb Box/Grate Single Good No e 24rcp to sd-590/CB-200 w 24rcp to sd-595 CA-202 32 

202 SD-595 R052208A~files\Photo-072772 No Good Curb Box/Grate Single Good No e 24rcp to sd-594/CB-201 w 24rcp to ? 33 

203 no sd# R052208A~files\Photo-073772 No Good Curb Box/Grate Single Good No e 24rcp to cb(no sd#) /CB-199 w 24rcp to cb(no sd#) /CB-204 34 

204 no sd# R052208A~files\Photo-074772 No Good Curb Box/Grate Single Good No w 24rcp to ? e 24rcp to cb(no sd#) /CB-203 35 

205 no sd# R052208A~files\Photo-077772 Yes Grate (Circular) Single Good No s 18cpep to sd-675/CB-206 n 18cpep to cb(no sd#) /CB-232 61 

206 SD-675 R052208A~files\Photo-080773 No Good Curb Box/Grate Single Good No n 18cpep to leaching cb(no sd#) /CB-205 e 15?cmp to sd-663/CB-210 69 

207 SD-677 R052208A~files\Photo-091774 Unknown Part Full (Dry) Curb Inlet Single Good No e 12cmp to sd-679/LB-35 200 

208 SD-680 R052208A~files\Photo-094774 R052208A~files\Photo-093774 Yes Good Curb Inlet Single Good No e 12cmp to sd-681/CB-209 214 

209 SD-681 R052208A~files\Photo-095774 R052208A~files\Photo-096774 Yes Good Curb Inlet Single Good No w 12cmp to sd-680/CB-208 215 

210 SD-663 R052208A~files\Photo-097774 No Good Grate (Rectangular) Single Good No w 15?cmp to sd-675/CB-206 217 


212 SD-683 R052208A~files\Photo-099774 Yes Good Grate (Circular) Single Good No sw ?rcp to sd-684/CB-213 262 

213 SD-684 R052208A~files\Photo-100775 Unknown Full (Dry) Curb Box/Grate Single Good No ne ?cmp to sd-683/CB-212 264 

214 SD-583 R052110A~files\Photo-999765 Yes Full (Wet) Curb Box/Grate Single Good No possible pipe to of-016? /OT-31 2 

215 SD-581 R052110A~files\Photo-001765 Yes Part Full (Wet) Curb Box/Grate Single Good No n 18rcp to of-? eastern reach 3 

216 SD-580 R052110A~files\Photo-002765 No Good Curb Box/Grate Single Good No w 12rcp to sd-579/CB-217 4 

217 SD-579 R052110A~files\Photo-003765 No Good Curb Box/Grate Single Good No n 15rcp to sd-583? /CB-214 e 12rcp to sd-580/CB-216 5 

218 SD-568 R052110A~files\Photo-004765 Unknown Good Curb Box/Grate Single Good No s 18rcp to sd-569/CB-219 6 

219 SD-569 R052110A~files\Photo-005765 Unknown Part Full (Dry) Curb Box/Grate Single Good No unknown 7 

220 no sd # R052110A~files\Photo-006765 No Good Curb Box/Grate Single Good No e 15rcp to sd-554/CB-221 10 

221 SD-554 R052110A~files\Photo-007765 No Good Curb Box/Grate Single Good No w 15rcp to cb7 (no sd#) /CB-220 e pipe to culvert? 11 

222 SD-556 R052110A~files\Photo-008766 No Good Curb Box/Grate Single Good Sewage direct shute to culvert? flowing water heard at bottom 17 

223 SD-555 R052110A~files\Photo-009766 No Good Curb Box/Grate Single Good No ne 18rcp to sd-556/CB-222 18 

224 SD-570 R052110A~files\Photo-010766 Unknown Part Full (Wet) Curb Box/Grate Single Good No unknown 38 

225 SD-571 R052110A~files\Photo-011766 Unknown Part Full (Dry) Curb Box/Grate Single Good No unknown 39 

226 SD-572 R052110A~files\Photo-012766 No Good Curb Box/Grate Single Good No n 12cmp to sd-573/CB-227 possible s 15cmp to sd-571/CB-225 e 12cmp to sd-570/CB-224 w 12cmp to sd-575/CB-228 ? 40 


228 SD-575 R052110A~files\Photo-014766 Unknown Full (Dry) Grate (Rectangular) Single Good No cb for asp gutter east side of roadway 44 

229 SD-576 R052110A~files\Photo-015766 Unknown Full (Dry) Grate (Rectangular) Single Good No possible s 15cmp to ot/gutter 45 

230 SD-574 R052110A~files\Photo-021767 No Part Full (Dry) Grate (Rectangular) Single Good No n 6pvc to asp gutter? 54 

231 SD-577 R052110A~files\Photo-022767 No Good Grate (Rectangular) Single Good No ne 18cmp to sd-578/LB-37 79 

232 no sd# R052110A~files\Photo-024767 No Part Full (Dry) Grate (Rectangular) Single Good No n 18cpep to outfall? s 18cpep to cb(no sd#)/CB-205 113 

233 SD-664 R052110A~files\Photo-025767 Yes Part Full (Dry) Grate (Circular) Single Good No unknown n pipe to reach2 118 

234 no sd# R052110A~files\Photo-028768 No Part Full (Wet) Grate (Circular) Single Good No n 12cpep to SD-674/CB-235 121 

235 SD-674 R052110A~files\Photo-030768 No Part Full (Wet) Curb Box/Grate Single Good No s 12cpep to cb (no sd#) /CB-234 n 12cpep to/CB-237 e to sd-665/CB-206 123 

236 SD-665 R052110A~files\Photo-032768 No Part Full (Wet) Curb Box/Grate Single Good No w 12(?)cmp to sd-674 (broken) /CB-235 125 

237 no sd# R052110A~files\Photo-033768 No Full (Wet) Grate (Rectangular) Single Good No outfall from property into cb unable to verify pipe exist 126 

238 SD-673 R052110A~files\Photo-035768 No Part Full (Wet) Grate (Rectangular) Single Good No unable to verify pipe exist outfall from property into cb 135 

239 SD-672 R052110A~files\Photo-037768 No Part Full (Wet) Grate (Rectangular) Single Good No s 12cpep to sd-673/CB-238 n 12cpep to sd-671/CB-193 138 

240 no sd# R052110A~files\Photo-038769 No Full (Dry) Grate (Rectangular) Single Good No n 12cpep to sd-666/CB-194 139 

241 SD-054/588 R052010A~files\Photo-981763 No Part Full (Wet) Curb Box/Grate Single Good No possible n? to of-004(of-10) /OT-25 possible s? to sd-053/587 /CB-242 7 

242 SD-053/587 R052010A~files\Photo-982763 No Part Full (Wet) Curb Box/Grate Single Good No e 18rcp to sd-052/CB-243 w 18rcp to sd-593/CB-246 probable n? to sd-054/588 /CB-241 8 

243 SD-052 R052010A~files\Photo-983763 No Good Curb Box/Grate Single Good No w 18rcp to sd-053/587 /CB-242 e 18rcp to sd-051/CB-137 20 

244 SD-055 R052010A~files\Photo-984763 No Full (Dry) Curb Box/Grate Single Good No unknown s 18rcp to sd-052/CB-243 25 

245 SD-058 R052010A~files\Photo-985763 R052010A~files\Photo-986763 Unknown Full (Dry) Grate (Rectangular) Single Other No 28 

246 SD-593 R052010A~files\Photo-987764 No Part Full (Wet) Curb Box/Grate Single Good No e ? to sd-053/587 /CB-242 w ? to sd-592/CB-247 35 

247 SD-592 R052010A~files\Photo-988764 No Good Curb Box/Grate Single Good No e 18rcp to sd-593/CB-246 w 18rcp to sd-591/CB-199 37 


249 SD-? (583?) R052010A~files\Photo-992764 R052010A~files\Photo-993764 No Good Grate (Rectangular) Single Good No e ? to eastern reach of creek direct pipe to creek 45 

250 SD-584 R052010A~files\Photo-995764 No Full (Wet) Curb Box/Grate Single Good No probable sw pipe to of-015/OT-29 47 

251 SD-068 R051910A~files\Photo-965762 No Good Curb Box/ Grate Single Good No n ? to? s ? to ? w ? to ? 17 




TABLE A-3 

LEACHING BASINS 


Cashin LB 

No. 


No. 

Photo Photo2 Condition Casting Type 


Castings 

Casting 

Condition 

Odor Pipe Info / Notes Pipe Info / Notes Point ID 

1 SD-727 R061508A~files\Photo-338798 Part Full (Dry) Curb Box/Grate Single Good No 9 

2 no sd# R061211A~files\Photo-301794 Full (Wet) Grate (Circular) Single Good No 8 

3 SD-362 R061211A~files\Photo-323797 Full (Wet) Grate (Circular) Single Good No lb completely submerged 39 

4 SD-363 R061211A~files\Photo-325797 Full (Wet) Curb Box/Grate Single Good No possible pipe to sd-364?/CB-50 41 

5 SD-367 R061211A~files\Photo-326797 Full (Wet) Curb Box/Grate Single Good No 49 

6 SD-368 R061211A~files\Photo-328797 Part Full (Dry) Grate (Circular) Single Good No 58 

7 SD-369 R061211A~files\Photo-329797 Full (Wet) Grate (Circular) Single Good No 59 

8 SD-736 R061211A~files\Photo-330797 Part Full (Wet) Grate (Circular) Single Good No 60 


10 SD-774 R060808A~files\Photo-291793 Part Full (Dry) Curb Box/Grate Single Good No 133 

11 SD-768 R060808A~files\Photo-292793 R060808A~files\Photo-293794 Full (Wet) Curb Box/Grate Single Collapsing No 134 



14 SD-692 R052808A~files\Photo-137778 Good Grate (Circular) Single Good No 2 

15 SD-652 R052808A~files\Photo-138778 Part Full (Wet) Curb Box/Grate Single Good No 7 

16 SD-651 \R052808A~files\Photo-139778 Part Full (Wet) Curb Box/Grate Single Good No 8 

17 SD-691 R052808A~files\Photo-140779 Part Full (Dry) Grate (Circular) Single Good No 12 

18 no sd# R052808A~files\Photo-141779 Part Full (Dry) Curb Box/Grate Single Good No s 4pvc to ? 14 

19 SD-714 R052808A~files\Photo-145779 Full (Dry) Curb Box/Grate Single Good No unable to verify pipe exist. 29 


21 SD-709 R052808A~files\Photo-149779 R052808A~files\Photo-150780 Part Full (Wet) Grate (Circular) Single Broken (Minor) No 50 

22 no sd# R052808A~files\Photo-151780 Part Full (Wet) Grate (Circular) Single Good No 60 

23 SD-131 R052709A~files\Photo-103775 Part Full (Wet) Grate (Circular) Single Good No no visible pipe to creek possible n pipe to of-001/OT-40 4 

24 SD-129 R052709A~files\Photo-105775 Part Full (Dry) Grate (Circular) Single Good No unable to verify pipe exist possible nw pipe to mh 12 

25 SD-560 R052709A~files\Photo-126777 Part Full (Wet) Curb Box/Grate Single Good No e 18cpep to cb/no sd#/CB-183 w 18cpep to leaching cb/no sd#/CB-190 75 


27 SD-685 R052208A~files\Photo-082773 Part Full (Wet) Curb Box/Grate Single Good No 106 

28 SD-687 R052208A~files\Photo-083773 Full (Wet) Curb Box/Grate Single Good No 132 

29 SD-686 R052208A~files\Photo-084773 Full (Dry) Curb Box/Grate Single Other No 134 


31 no sd# R052208A~files\Photo-086773 Part Full (Dry) Grate (Rectangular) Single Other No 144 


33 SD-668 R052208A~files\Photo-088773 Part Full (Wet) Grate (Rectangular) Single Good No 157 

34 SD-678 R052208A~files\Photo-089773 Good Curb Box/Grate Double Good No 196 

35 SD-679 R052208A~files\Photo-090774 Part Full (Dry) Grate (Rectangular) Single Good No w 12cmp to sd-677/CB-207 199 

36 SD-676 R052208A~files\Photo-092774 Part Full (Dry) Curb Inlet Single Good No 213 

37 SD-578 R052110A~files\Photo-023767 Full (Dry) Grate (Circular) Single Good No possible sw 18cmp to sd-577/CB-231 85 

38 no sd# R052110A~files\Photo-045769 Good Grate (Circular) Single Good No 148 

39 no sd# R052110A~files\Photo-046769 Grate (Circular) Single Other No casting covered/blocked 157 




TABLE A-4 

MANHOLES 


Cashin 

MH No. 


No. 

Photo Photo2 Accessable Leaching Condition 

Casting 

Type 

Casting 

Condtion 

Odor Pipe Info / Notes Pipe Info / Notes Pipe Info / Notes Pipe Info / Notes Pipe Info / Notes Point_ID 

01 R052908A~files\Photo-171782 R052908A~files\Photo-172782 Yes No Good Solid Good No sanitary sewer manhole n 8rcp? to? s 8rcp tp? 2 

02 SD-126? R052908A~files\Photo-173782 R052908A~files\Photo-174782 Yes No Solid Good No sanitary sewer manhole cap over pvc - straight down 3 

03 R052208A~files\Photo-051770 No Unknown Unknown Solid Other No 6 

04 R061211A~files\Photo-302794 Yes Yes Part Full (Wet) Solid Good No 9 

05 SD-849 R061508A~files\Photo-339798 R061508A~files\Photo-340798 No Unknown Unknown Solid Good No sanitary sewer manhole 11 

06 R052908A~files\Photo-180782 R052908A~files\Photo-181783 Yes Unknown Part Full (Wet) Solid Good No n 18cmp to sd-062/CB-142 19 

07 R052908A~files\Photo-182783 Yes Unknown Full (Wet) Solid Good No possible n pipe to sd-063/CB-144 20 

08 R052908A~files\Photo-183783 Yes Unknown Full (Wet) Solid Good No possible n pipe to sd-064/CB-145 21 

09 R052808A~files\Photo-144779 No Unknown Unknown Solid Good No possible leaching mh 27 

10 SD-048 R060808A~files\Photo-226787 R060808A~files\Photo-227787 Yes No Part Full (Wet) Solid Other No w 36?rcp to sd-559/CB-186/187 nw? 24?rcp to ? (overflow?) to CB-186/187 ? ne 24?rcp to sd-017/CB-78 s 32?rcp to sd-332/CB-79 possible sw ?rcp to ? (broken end of pipe) 31 

11 R052908A~files\Photo-189783 No Unknown Unknown Solid Good No 33 

12 R052709A~files\Photo-115776 Yes No Good Solid Good No 24 n cmp to of-12/OT-35 se 15?cmp to sd-129?/LB-24 42 

13 R052709A~files\Photo-121777 Yes No Part Full (Wet) Solid Good No n 15cpep to sd-552/CB-181 w 24cpep to culvert e 24rcp to sd-042/CA-64 56 

14 R052709A~files\Photo-123777 R052709A~files\Photo-124777 Yes No Solid Good No mh access to drainage culvert 60 




APPENDIX B 

Lawrence Aviation Industries Plume Figure 

SCDPW Sanitary Sewer District Boundary 

Map

Superfund Proposed Plan 

Lawrence Aviation Industries Site 

EPA Region 2 - July 2006 Page 15



APPENDIX C 

Riparian Buffer Plant List

NATIVE 

NAME 

Silver maple 

Acer saccharinum 

Box elder 

Acer negundo 

Pagoda dogwood 

Cornus alternifolia 

Black willow 

Salix nigra 

Red maple 

Acer rubrum 

Striped maple 

Acer pensylvanicum 

Sugar maple 

Acer saccharum 

American beech 

Fagus grandifolius 

Black cherry 

Prunus serotina 

Wild plum 

Prunus nigra 

American mountain ash 

Sorbus americana 

Shadbush, serviceberry 

Amelanchier laevis 

Black walnut 

Juglans nigra 

Northern red oak 

Quercus rubra 

Yellow birch 

Betula allegheniensis 

TREES for Riparian Buffers in the Upper Connecticut River Valley of New Hampshire and Vermont 

LIGHT PREFERENCE SOIL PREFERENCE 

DECID/ 

EVERGR 

MATURE 

HEIGHT 

GROWTH 

RATE ROOTING 

full/ 

part shade full sun dry moist 

flood 

tolerant 

WILDLIFE HABITAT 

& FOOD VALUE ORNAMENTAL VALUE 

BANK 

STABILIZING 

VALUE 

HARDINESS 

ZONE 

d 60' moderate shallow x x x x low – moderate; provides cover silvery foliage very good, esp. 

for flood chute 

4 

d 40-70’ very fast deep 

lateral 

x x x x low - seeds eaten; provides cover very good, esp. 


3 

d 15' fast shallow x x x high – fruits eaten by many birds inc. 

bluebirds, turkey, grouse 

elegant branching habit; white 

flowers 

very good 3 

d 50' very fast very 

shallow 

x x x high – cover for nesting new foliage is attractively colored excellent, esp. 


3 

d 40–75' moderate 

to fast 

very 

shallow 

x x x x high – seeds, buds eaten by birds & 

mammals 

early red flowers, bright fall color very good 3 

d 20–35' moderate shallow x x low – moderate white striped bark attractive all 

seasons 

3 

d 60–100' slow shallow x x x moderate – seeds and buds eaten by 

large & small mammals, seeds eaten by 

grosbeaks & finches 

excellent fall color, attractive 

shape 

3 

d 70–90' slow shallow x x x x high – nuts valued by large and small 

mammals, turkey; favorite tree for black 

bears 

smooth gray bark in winter, 

copper fall color 

3 

d 40–60' moderate deep 

taproot 

x x high – berries eaten by many songbirds, 

mammals, inc. thrushes, foxes, bears, 

raccoons; avoid planting near areas used 

by livestock 

flowers, attractive reddish brown 

bark; however, prone to tent 

caterpillar 

3 

d 25' moderate shallow x x x x moderate early white flowers, attractive 

black bark; handsome fall foliage 

3 

d 25' fast shallow x x x x high – early fruit eaten by grosbeaks, 

bluebirds 

attractive shape, good for small 

lawns; brilliant orange red fall 

foliage, showy white flowers, 

clusters of bright red or orange 

berries 

3 

d 15–25' slow shallow x x x x x high – berries eaten by many songbirds; 

bluebirds, cardinals, orioles, thrushes 

masses of early white flowers, 

berries, bright fall color; effective 

screening 

4 

d 50–75' moderate very deep x x high – nuts eaten by mammals; plant 

away from edge of water and from 

gardens: a chemical in the roots and 

husks of nuts affects fish and many 

garden plants 

edible nuts, attractive shape 

4 

d 60–80' moderate deep 

lateral 

x x x x high – acorns for bear, raccoon, turkey, 

grouse; favored by hawks for nesting 

attractive shape, fine fall color 3 

d 60–90' slow shallow/ 

moderate 

x x x high – seeds favorite winter food of pine 

siskins and redpolls; also snowshoe hare; 

used by hawks for nesting 

shining golden bark 3

NAME 

Paper birch 

Betula papyrifera 

Grey birch 

Betula populifolia 

Black birch 

Betula lenta 

Hophornbeam 

Ostrya virginiana 

American hornbeam 

Carpinus caroliniana 

White ash 

Fraxinus americana 

Green ash 

Fraxinus pennsylvanica 

Black ash 

Fraxinus nigra 

Basswood 

Tilia americana 

Balsam poplar 

Populus balsamea 

Eastern cottonwood 

Populus deltoides 

Quaking aspen 

Populus tremuloides 

White pine 

Pinus strobus 

Red pine 

Pinus resinosa 

White spruce 

Picea glauca 

Balsam fir 

Abies balsamea 

Hemlock 

Tsuga canadensis 

Northern white cedar 

Thuja occidentalis 

Tamarack 

Larix laricina 


DECID/ 

EVERGR 

MATURE 

HEIGHT 

GROWTH 

RATE ROOTING 

full/ 

part 

shade full sun dry moist 

flood 

tolerant 

WILDLIFE HABITAT 

& FOOD VALUE ORNAMENTAL VALUE 

BANK 

STABILIZING 

VALUE 

HARDINESS 

ZONE 

d 50–75' fast shallow x x x moderate – seeds eaten by grouse, 

siskins; buds by small mammals 

attractive white bark (avoid 

planting in public areas to avoid 

problem of bark stripping) 

3 

d 20–35' fast shallow x x moderate – seeds, buds gray bark 3 

d 50–75' moderate shallow x x moderate – catkins, seeds reddish brown bark 4 

d 25–50' slow shallow x x x x moderate – seeds yellow fall color; red bark 4 

d 20–30' slow moderate x x x x x moderate – seeds eaten by birds, 

squirrels 

gray bark, fall color 3 

d 70–100' moderate shallow x x x x moderate purple fall color 3 

d 60–80' fast shallow x x x x low purple fall color very good 3 

d 60–80' moderate shallow x x x moderate wood used for splint baskets excellent 3 

d 70–80' moderate deep x x x moderate attractive foliage and shape 3 

d 60–80' fast shallow x x x low can be brittle and drop branches very good 3 

d 80–100' fast shallow x x x x low – grouse browse catkins can be brittle and drop branches 3 

d 40–60' fast shallow x x x moderate – beaver, porcupine, deer; 

favorite food of beaver and snowshoe 

hare; buds important to grouse 

can be brittle and drop branches; 

fluttering gray–green leaves 3 

e 70–100' moderate shallow x x x high – food & cover for birds & 

mammals, inc. crossbills and cardinals 

feathery foliage; good year–round 

screen 

3 

e 50–80’ moderate shallow x x x moderate orange–red bark; good 

year–round screen 

4 

e 40–70’ moderate shallow x x x x moderate – seeds foliage; windbreak, screen 3 

e 50–75' fast shallow x x x high – seeds; bird roosting, nesting fragrant, glossy foliage, attractive 

habit, Xmas trees 

3 

e 40–70' moderate shallow 

lateral 

x x x moderate – winter deer cover, seeds 

eaten by small mammals, chickadees, 

siskins, crossbills, grouse; nesting 

cover for warblers 

attractive foliage, habit; screen 3 

e 25–50' slow/mod shallow x x x moderate – winter cover attractive foliage; screen 3 

d 40–80' variable moderate x x x high pale new foliage; yellow fall color 3 

from Riparian Buffers for the Connecticut River Watershed, Connecticut River Joint Commissions, 2000

NAME 

Silky dogwood 

Cornus amomum 

Grey dogwood 

Cornus racemosa 

Red osier dogwood 

Cornus sericea, ssp. stolonifera 

Willows 

Salix spp. 

Pussy willow 

Salix discolor 

Buttonbush 

Cephalanthus occidentalis 

Highbush blueberry 

Vaccinium corymbosum 

Lowbush blueberry 

Vaccinium angustifolium 

Black chokeberry 

Aronia melanocarpa 

Pin cherry, bird cherry 

Prunus pennsylvanica 

Chokecherry 

Prunus virginiana 

American cranberry bush 

Viburnum trilobum 

Wild raisin, witherod 

Viburnum cassinoides 

Nannyberry 

Viburnum lentago 

Northern arrowwood 

Viburnum recognitum 

Maple-leaf viburnum 

Viburnum acerifolium 

Hobblebush 

Viburnum alnifolium 

Winterberry holly 

Ilex verticillata 

Inkberry holly 

Ilex glabra 

NATIVE SHRUBS for Riparian Buffers in the Upper Connecticut River Valley of New Hampshire and Vermont 


DECID/ 

EVERGR 

MATURE 

HEIGHT 

GROWTH 

RATE 

full/ 


flood 

tolerant WILDLIFE HABITAT & FOOD VALUE ORNAMENTAL VALUE 

BANK 

STABILIZING 

VALUE 

HARDINESS 

ZONE 

d 6-10' fast x x x x x high – fruits eaten by birds & mammals; cover purple twigs excellent 4 

d 10' moderate x x x x very high – fruit eaten by grouse and pheasant small whitish flower cluster, white 

fruits 

very good 4 

d 4-8' fast x x x x high – whitish fruit eaten by birds bright red stems attractive in winter; 

white flowers 

very good 3 

d 4-10' fast x x x high – provides good cover foliage excellent 3 

d 20' fast x x x moderate – nesting; buds eaten; male flowers 

attract butterflies 

early buds are used in horticultural 

arrangements 

excellent 3 

d 6-12' moderate x x x x moderate – high; nectar used by 

hummingbirds; waterfowl eat seed 

white pom-pom like flower clusters; 

glossy foliage 

excellent 4 

d 6-12' slow x x x x x high – fruits eaten by birds & mammals; 

favorite of scarlet tanagers, bluebirds, grouse 

flowers, fruits, bright fall color, 

attractive habit 

3 

d 1 -2' slow x x x x high – fruits eaten by birds and mammals flowers, fruits, scarlet fall color, 

good ground cover 

3 

d 10' moderate x x x x x very high – fruits purple fruits, purple fall color 4 

d 30' fast x x high – fruits used by birds shining dark red bark, white flower 

clusters, red fruits 

3 

d 15-25' moderate x x x x moderate – fruits, cover flowers, fruits, good fall color 3 

d 10' slow to 

moderate 

x x x x x high – fruits persist into winter white flower clusters, scarlet fruits, 

good fall color 3 

d 6-10' moderate x x x high – fruit eaten by grouse, songbirds; 

rabbits & deer browse twigs 

white flowers, edible blue-black 

fruits, good fall color 

4 

d 10-20' moderate x x x x high – fruits remain into winter fruits, good fall color 3 

d 10-15' moderate x x x x moderate – fruits eaten by birds; nesting flowers, blue fruits, good fall color 3 

d 3-6' moderate x x x moderate – fruits eaten by birds fruits, attractive foliage, good fall 

color 

3 

d 10' moderate x x x moderate – fruits eaten by birds very showy white flower clusters in 

halo arrangement; purple fall color; 

open habit 

4 

d 6-10' slow x x x x high – fruits eaten by flickers, thrushes, cedar 

waxwings, also birds in winter 

attractive bright red berries persist 

into winter, make excellent Xmas 

decorations 

3 

e 6-8' slow x x x x high – fruits eaten by songbirds, turkey, 

grouse 

leathery evergreen foliage; black 

fruits 

4

NAME 

Sheep laurel 

Kalmia angustifolia 

Elderberry 

Sambucus canadensis 

Sweet pepperbush 

Clethra alnifolia 

Hazelnut 

Corylus americana 

Beaked hazelnut 

Corylus cornuta 

Speckled alder 

Alnus rugosa 

Spicebush 

Lindera benzoin 

Witch hazel 

Hamamelis virginiana 

Rhodora azalea 

Rhododendron canadense 

Swamp azalea 

Rhododendron viscosum 

Early azalea 

Rhododendron roseum 

Blackberry 

Rubus allegheniensis 

Raspberry 

Rubus idaeus 

Meadowsweet 

Spiraea latifolia 

Steeplebush 

Spiraea tomentosa 

Staghorn sumac 

Rhus typhina 

Smooth sumac 

Rhus glabra 

Sweet gale 

Myrica gale 

Sweetfern 

Comptonia peregrina 

Pasture juniper 

Juniperus communis 


DECID/ 

EVERGR 

MATURE 

HEIGHT 

GROWTH 

RATE 

full/ 


flood 


BANK 

STABILIZING 

VALUE 

HARDINESS 

ZONE 

semi-e 4' slow x x x x x (poisonous to livestock) very showy pink-red flowers 

3 

d 12' moderate x x x x very high – berries an important summer food 

for songbirds inc. bluebirds, rose-breasted 

grosbeaks, pileated woodpeckers, thrushes 

showy white flower clusters; blue 

berries; jelly and wine can be made 

from berries 

very good 

3 

d 8' moderate x x x x high – fruits white flowers 4 

d 10' moderate x x x high – nuts eaten by mammals, grouse, 

pheasant 

edible nuts 

3 

d 6-10' moderate x x x high – beaked nuts used by both mammals & 

birds 

good for hedges; edible nuts 

5 

d 15-25' fast x x x moderate – buds & twigs browsed by muskrat, 

rabbits, moose, deer, beaver, grouse 

tiny cones make Xmas decorations very good 

3 

d 12' moderate x x x high – many mammals and birds eat fruits, 

buds, & twigs; attracts swallowtail butterflies 

spicy scented flowers and leaves; 

shiny red fruits 5 

d 20-30' slow x x x moderate yellow flowers in autumn after leaves 

fall 4 

d 3-4' slow x x x low very showy rose purple flowers 

before leaves 3 

d 5' moderate x x x x low glossy leaves, very showy white - 

pink flowers 5 

d 10' slow x x x low very showy white or pink flowers 

4 

d 6' fast x x x x very high – fruits eaten by over 40 species of 

birds inc. woodcock, turkey, grouse; also by 

many mammals 

makes good barrier 

3 

d 6' fast x x x x same as above – fruits eaten by many 

mammals & birds 

makes good barrier 

3 

d 5' moderate x x low white or pale pink flowers very good 

2 

d 4' moderate x x x x low spires of pink flowers 

3 

d 20' fast x x x very high – fruits late winter survival food for 

mammals and migrating songbirds; twigs 

eaten by moose, deer, N E cottontail rabbit 

colorful fruit clusters, brilliant fall 

color; velvet covered branches 

good 

3 

d 9-15' fast x x high – fruits red fruit clusters, orange-red fall 

color 3 

d 2-4' slow x x x moderate – grouse eat buds and leaves; deer 

browse 

aromatic foliage 

3 

d 2-4' slowmoderate 

x x x moderate – grouse, deer feed on foliage gray green aromatic fern-like leaves 

3 

e 1-4' slow x x moderate – food for grouse, pheasant, deer, 

moose, small mammals, & birds 

foliage; good ground cover 

3 


NAME 

Riverbank grape 

Vitis riparia 

Virginia creeper, woodbine 

Parthenocissus quinquefolia 

Partridge berry 

Mitchella repens 

Bearberry 

Arctostaphylos uva-ursi 

Wintergreen 

Gaultheria procumbens 

Blue flag iris 

Iris versicolor 

Milkweed 

Asclepias tuberosa 

Blue-eyed grasses 

Sisyrinchium spp. 

Ginseng 

Panax quinquefolius 

Bunchberry 

Cornus canadensis 

Foamflower 

Tiarella cordifolia 

Twinflower 

Linnaea borealis 

Marsh marigold 

Caltha palustris 

Whorled loosestrife 

Lysimachia quadrifolia 

Cardinal flower 

Lobelia cardinalis 

Blue false indigo 

Baptisia australis 

Joe pye weed 

Eupatorium purpureum 

Boneset 

Eupatorium perfoliatum 

NATIVE GROUND COVERS, Vines, and Herbaceous Perennials for Riparian Buffers 

in the Upper Connecticut River Valley of New Hampshire and Vermont 


DECID/ 

EVERGR HT 

full/part 


flood 


d 25' x x x x very high – fruits a favorite of turkeys, grouse, wood 

duck, pileated woodpeckers, & mammals inc. bear 

vines useful for making wreaths 

d 25' x x x x moderate – provides cover; pileated woodpecker, crested 

flycatcher, vireo 

foliage – good cover for walls and rockpiles when leafed out 

e 2" x x x high – berries eaten by grouse & mammals dark green, glossy foliage; paired white flowers in June; bright 

red berries in late summer, fall 

e 1' x x high – fruits handsome foliage; good ground cover 

e 4" x x high – fruits flowers, fruits, glossy aromatic foliage 

d 1-3' x x x low showy purple-blue flowers in late spring 

d 

2 

x x very high – one of most important butterfly plants; 

monarchs rely exclusively on it; hummingbirds & many 

other insects use flower nectar 

fragrant pink-purple flowers; distinctive seed pods useful for 

decorations 

d 1' x x x low stiff, grass-like plants with blue-violet flowers 

d 8-16" x x low woodland wildflower of pharmaceutical interest. Wild 

populations are suffering from over-collecting, but cultivated 

plants could be harvested from a forested riparian buffer. 

e 6" x x high – fruits eaten by birds and mammals showy white spring flowers and red summer berries, purplish 

fall color; excellent ground cover 

d 1' x x low small star-like flowers in a loose spike 

e 6" x x low trailing plant; white and pink paired flowers 

d 1-2' x x x low early yellow flowers 

d 4' x x x x low yellow flowers with red markings; attractive foliage; not related 

to invasive purple loosestrife 

d 2-4' x x x moderate – hummingbirds attracted to flowers brilliant red flowers 

d 3-4' x x x x low large dark blue or violet flowers 

d 5-6' x x x high – butterflies are attracted to flowers large flat-topped cluster of fuzzy purple flowers 

d 4-6' x x x high – attracts butterflies & other insects white flowers

NAME 

Wild lupine 

Lupinus perennis 

Harebell 

Campanula rotundifolia 

Jewelweed 

Impatiens capensis 

Daisy 

Chrysanthemum leucanthemum 

Goldenrod 

Solidago spp. 

New England aster 

Aster novae-angliae 

Christmas fern 

Polystichum acrostichoides 

Hay-scented fern 

Dennstaedtia punctilobula 

Bracken fern 

Pteridium aquilinum 

Cinnamon fern 

Osmunda cinnamomea 

Royal fern 

Osmunda regalis 

Interrupted fern 

Osmunda claytoniana 

Sensitive fern 

Onoclea sensibilis 

Cattail 

Typha latifolia 

Reed grass 

Calamagrostis canadensis 

Pennsylvania sedge 

Carex pensylvanica 

Tussock sedge 

Carex stricta 

Rattlesnake manna grass 

Glyceria canadensis 

Rice cutgrass 

Leersia oryzoides 

Tufted hair grass 

Deschampsia caespitosa 


DECID/ 

EVERGR HT 

full/part 


flood 


d 1-3' x x x low purple-blue flower spires in June; attractive foliage 

d 1' x x low delicate wildflower with blue-lavender bell shaped flowers 

d 1-3' x x x x high – favored by hummingbirds, butterflies orange flowers in summer; seed capsules burst when touched; 

juice of plant said to help defend against exposure to poison ivy 

d 1-4' x x x moderate – seeds favored by finches; common nectar 

source for butterflies 

familiar white ray flower with yellow center 

d 1-5' x x x moderate – seeds eaten by finches; nectar by butterflies many species of wildflowers in midsummer to early fall; all 

except silverrod are yellow 

d 5' x x x high – seeds used by songbirds; attracts butterflies late summer/fall purple flowers with yellow centers 

e 1' x x low evergreen ground cover; glossy foliage 

d 2' x x x x low fragrant light-green foliage; spreads well, forms pure stands; 

tolerates full sun 

d 2-3' x x x low sturdy foliage; tolerates full sun 

d 3-4' x x x low vase-shaped clusters; handsome foliage; cinnamon colored 

fertile fronds 

d 6' x x x x low handsome foliage; new crosiers edible as “fiddle heads” 

d 3-4' x x low vase-shaped clusters 

d 2' x x x low fertile fronds used in dried arrangements 

d 6’ x x x high – seed heads valuable food for birds strap shaped leaves; brown seed head is distinctive and often 

used in horticultural arrangements 

d 5' x x x moderate attractive grass forms clumps, stabilizes soils well 

d 2' x x low forms low turf on sunny dry soils 

d 4' x x x moderate – food for sparrows, grouse, snipe, others forms clumps or tussocks 

d 3' x x moderate grass with delicate and distinctive inflorescence; plant in 

clusters where no competition by others is likely 

d 5' x x x high – food for waterfowl; cover for fish, reptiles, 

amphibians 

attractive seed head 

d 4' x moderate attractive seed head

Village of Port Jefferson Mill Creek Watershed Management Plan

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