Stormwater Management Standards Manual - Toledo Metropolitan ...

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Sediment and Erosion Control Ordinance the NPDES Permit, or a letter from the site owner certifying and explaining why the NPDES Permit is not applicable. (7.12) Section 401 of the Clean Water Act: Proof of compliance shall be a copy of the Ohio EPA Water Quality Certification application tracking number, public notice, project approval, or a letter from the site owner certifying that a qualified professional has surveyed the site and determined that Section 401 of the Clean Water Act is not applicable. Wetlands, and other waters of the United States, shall be delineated by protocols accepted by the U.S. Army Corps of Engineers at the time of application of this regulation. (7.13) Ohio EPA Isolated Wetland Permit: Proof of compliance shall be a copy of Ohio EPA’s Isolated Wetland Permit application tracking number, public notice, project approval, or a letter from the site owner certifying that a qualified professional has surveyed the site and determined that Ohio EPA’s Isolated Wetlands Permit is not applicable. Isolated wetlands shall be delineated by protocols accepted by the U.S. Army Corps of Engineers at the time of application of this regulation. (7.14) Section 404 of the Clean Water Act: Proof of compliance shall be a copy of the U.S. Army Corps of Engineers Individual Permit application, public notice, or project approval, if an Individual Permit is required for the development project. If an Individual Permit is not required, the site owner shall submit proof of compliance with the U.S. Army Corps of Engineer’s Nationwide Permit Program. This shall include one of the following: A. A letter from the site owner certifying that a qualified professional has surveyed the site and determined that Section 404 of the Clean Water Act is not applicable. B. A site plan showing that any proposed fill of waters of the United States conforms to the general and special conditions specified in the applicable Nationwide Permit. Wetlands, and other waters of the United States, shall be delineated by protocols accepted by the U.S. Army Corps of Engineers at the time of application of this regulation. (7.15) Ohio Dam Safety Law: Proof of compliance shall be a copy of the ODNR Division of Water permit application tracking number, a copy of the project approval letter from the ODNR Division of Water, or a letter from the site owner certifying and explaining why the Ohio Dam Safety Law is not applicable. 8. Stormwater Pollution Prevention Plan 8.1 In order to control sediment pollution of water resources and wetlands, an applicant disturbing property subject to section 5.1 of this regulation shall submit a SWP3 in accordance with this regulation. 8.2 The SWP3 shall be certified by a professional engineer (P.E.), certified professional erosion and sediment control specialist, or a registered landscape architect. 8.3 The SWP3 shall incorporate measures as recommended by the most current edition of Rainwater and Land Development as published by the Ohio Department of Natural Resources or the most current edition of the Stormwater Management Standards Manual as developed by TMACOG and the Maumee RAP and shall include the following information: (8.31) Site description and data: The SWP3 shall provide: A. A description of the nature and type of the construction activity (e.g. residential, shopping mall, highway, etc.). Third Edition Stormwater Standards Manual September 2008 Page 224
Sediment and Erosion Control Ordinance B. Total area of the site and the area of the site that is expected to be disturbed (i.e., grubbing, clearing, excavation, filling or grading, including off-site borrow areas). C Calculation of runoff coefficients for both the pre-construction and post-construction condition. D. An estimate of the impervious area and percent of imperviousness created by the soil-disturbing activity. E. Existing data describing the soil and, if available, the quality of any known pollutant discharge from the site such as that which may result from previous contamination caused by prior land uses. F .A description of prior land uses at the site. G An implementation schedule which describes the sequence of major soil-disturbing operations (i.e., grubbing, excavating, grading, utilities and infrastructure installation) and the implementation of erosion and sediment controls to be employed during each operation of the sequence. H .The location and name of the immediate receiving stream or surface water(s) and the first subsequent receiving water(s). I. The aerial (plan view) extent and description of wetlands or other special aquatic sites at or near the site which will be disturbed or which will receive discharges from disturbed areas of the project. J. For subdivided developments where the SWP3 does not call for a centralized sediment control capable of controlling multiple individual lots, a detail drawing of a typical individual lot showing standard individual lot erosion and sediment control practices. K. Location and description of any stormwater discharges associated with dedicated asphalt and dedicated concrete plants associated with the development area and the best management practices to address pollutants in these stormwater discharges. L. The name of the applicant (person responsible for implementation of the SWP3). (8.32) Site map: The SWP3 shall provide: A. Limits of soil-disturbing activity of the site, including off site spoil and borrow areas. B. Soils types should be depicted for all areas of the site, including locations of unstable or highly erodible soils. C. Existing and proposed one-foot (1') contours. This must include a delineation of drainage watersheds expected during and after major grading activities as well as the size of each drainage watershed in acres. D. Surface water locations including springs, wetlands, streams, lakes, water wells, etc., on or within 200 feet of the site, including the boundaries of wetlands or stream channels and first subsequent named receiving water(s) the applicant intends to fill or relocate for which the applicant is seeking approval from the Army Corps of engineers and/or Ohio EPA. E. Existing and planned locations of buildings, roads, parking facilities, and utilities. F The location of all erosion and sediment control practices, including the location of areas likely to require temporary stabilization during the course of site development. Third Edition Stormwater Standards Manual September 2008 Page 225
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TMACOG STORMWATER MANAGEMENT STANDA
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3.5.3 Drainage Structure Location .
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8.2.2 Regulatory Floodway..........
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GROUND WATER TABLE ................
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TN ................................
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Flow Around Ends ..................
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FIGURES Figure 1-1 Effects of Urban
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Executive Summary The Stormwater Co
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Chapter 8: Regulatory Floodplain an
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has taken 30 years to start to iden
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1.3.1 Changes in Watershed Hydrolog
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A well-designed plan requires consi
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1.5.1 Nonstructural Controls Nonstr
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CHAPTER 2 - Stormwater Management S
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applications. These regulations are
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• Description of how the Runoff R
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Lucas County Lucas County Engineer
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Township of Richfield 3951 Washburn
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CHAPTER 3 - RUNOFF REDUCTION HIERAR
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keeping stormwater pollution out of
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Schueler, T. R., Site Planning for
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Rainfall Intensities in Inches/Hour
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f. HEC-RAS used for FEMA Studies 3.
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3.5.2 Capacity Storm sewers should
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a. All materials should be of such
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4.1.1 Exclusions: Activities that a
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• Total area of the site and the
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stabilization, vegetative buffer st
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The sediment settling pond volume c
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for roads or utilities), the projec
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SWP3 is adequate, or whether additi
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work best in gently sloping areas (
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function by slowing runoff velociti
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Sand filtration systems are most be
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limited to a height of 18 inches. T
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Example of a Perimeter Sand Filter
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5.3 Runoff Treatment 5.3.1 Bioreten
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Site Applicability Bioretention is
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Introducing Runoff Runoff must be i
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Plan View Of A Bioretention Cell Fi
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Underdrain Gravel Underdrain gravel
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Type Botanical Name Common Name F T
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• The cell is draining properly a
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General Applicability Land Area Con
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energy of the inflow. Stone riprap
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Maintenance Maintenance Agreement A
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5.3.3 Wet Detention Ponds Wet deten
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Minimal Water Supply To avoid drawd
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Sediment Removal Sediment removal i
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5.3.4 Dry Extended Detention Basins
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Riser Design Hoods or trash racks s
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Example of a Dry Extended Detention
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CHAPTER 6 - ILLICIT DISCHAGE DETECT
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Should be the same agency as tracin
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Sewer Conversion: Areas that were o
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6.4.2 Dry Weather Field Screening T
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6.5.1 Local Agency Contact Informat
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CHAPTER 7 - Riparian Setbacks _____
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Floodplains perform crucial roles,
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are ecologically compatible and emp
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yards, recycling facilities, quarri
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8.2 Lands Subject to These Control
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more than 1.0 foot. (Some jurisdict
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• Be consistent with the need to
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• Category 1 - wetlands are consi
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eissued (extended), and revoked fro
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Oak Openings Region Boundary Figure
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Authorized representatives of local
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Base Flood The flood having one per
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1. Dry Detention Basin A basin that
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Fill Added earth that is designed t
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Infiltration The absorption of wate
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Ohio Rapid Assessment Method A mult
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Regulatory Floodway The channel and
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Soil and Water Conservation Distric
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Temporary Soil Erosion and Sediment
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Appendix B: Best Management Practic
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Example of Matting Installation Fig
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Description Applying a protective l
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6. Permanent Seeding Description Pe
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Design Guidelines Site Preparation
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Example of a Sediment Trap Figure A
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Safety Sediment basins shall be con
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Example of a Sediment Basin Figure
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Example of Silt Fence Installation
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Examples of Inlet Protection Techni
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Page 176 and 177: Maintenance Mud spilled, dropped, w
Page 178 and 179: Figure Appendix B- 9 Example of Str
Page 180 and 181: summary of the activities the juris
Page 182 and 183: Riparian Resolution for Township RI
Page 184 and 185: Riparian Resolution for Township SE
Page 186 and 187: Riparian Resolution for Township 26
Page 188 and 189: Riparian Resolution for Township 1.
Page 190 and 191: Riparian Resolution for Township ap
Page 192 and 193: Riparian Resolution for Municipalit
Page 202 and 203: Conservation Development for Townsh
Page 208 and 209: Conservation Development for Munici
Page 214 and 215: Lucas County Stormwater Quality Rul
Page 216 and 217: Sediment and Erosion Control Ordina
Page 238 and 239: Illicit Discharge & Illegal Connect
Page 246: Illicit Discharge & Illegal Connect
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