Erosion and Sediment Pollution Control Program Manual.pdf

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• Design developments in a clustered format. • Work with municipal officials to explain the advantages of creative subdivision design. Construction Activities All of the work put into the tree report and the tree preservation plan can be lost through carelessness. It only takes a moment for a piece of heavy equipment or a person with a chain saw to injure or kill a tree that was selected for preservation. Other construction activities, such as the cleaning of cement trucks and paint equipment, can seriously injure or kill a tree. Developers, contractors, and home builders should take every precaution to ensure that trees designated for preservation are not injured during construction. This requires that trees be protected by fenced tree protection zones and that workers be properly instructed and monitored. 363-2134-008 / March 31, 2012 / Page 468
Protecting Trees During Construction Contractors, equipment operators, and workers should be informed of the importance of protecting trees that have been selected for preservation. This message can be reinforced by establishing penalties that should be paid if trees are injured or killed during construction. Penalties should be large enough to emphasize that large trees can be worth thousands of dollars and even small trees can cost hundreds of dollars to replace. The value of injured or killed trees can be appraised by qualified arborists using the International Society of Arboriculture’s Guide for Plant Appraisal. In addition, lot owners or home builders can have tree preservation terms written into their contracts with developers and contractors. The following recommendations should be implemented to help protect trees during the construction phase. Hurricane or other protective fencing should be placed around a TPZ to physically protect trees. Fencing provides a protective barrier and also reminds workers that protecting trees is important. Contractors and workers often want to change or move fencing to make adjustments for construction activities that were not adequately planned and designed. Fencing should be checked periodically and people involved in a project informed that moving a fence is not acceptable. Using the tree report and tree preservation plan to evaluate trees in the field. Proposed tree encroachments can be staked in the field so that needed root and canopy pruning and tree removals can be completed before construction begins. Staking curblines, foundations, and other elements also allows for additional evaluation of tree protection techniques, such as retaining walls, before construction begins. Lay out temporary roadways and storage areas. Do not raise or lower the natural soil level within a TPZ. Raising the grade within a TPZ by adding or “filling” soil reduces water infiltration and air exchange in the soil around the roots. Lowering the grade or “cutting” soil removes both soil and tree roots, and also damages the roots that remain. Filling or cutting soil within a TPZ can severely injure or kill a tree. 363-2134-008 / March 31, 2012 / Page 469
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EROSION AND SEDIMENT POLLUTION CONT
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FOREWORD The various Best Managemen
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TABLE OF CONTENTS Page Foreword ...
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Waterbars .........................
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Table Number Name Page 11.4 Recomme
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Figure Number Name Page 7.7 Graphic
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STANDARD CONSTRUCTION DETAILS Numbe
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CHECKLISTS, STANDARD E&S WORKSHEETS
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are cases where sheet flow has occu
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is replaced following earthmoving,
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CHAPTER 1 - REQUIRED E&S PLAN CONTE
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topography of the site should be in
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efore earth disturbance occurs with
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is classified as High Quality (HQ)
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install the proposed perimeter BMPs
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detail(s) for the specific BMP. In
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CHAPTER 3 - SITE ACCESS This chapte
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ROCK CONSTRUCTION ENTRANCE WITH WAS
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RUMBLE PAD Pre-constructed rumble p
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3 feet should be avoided wherever p
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WATERBAR - Sediment Removal Efficie
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BROAD-BASED DIP - Sediment Removal
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USDA Forest Service STANDARD CONSTR
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DITCH RELIEF CULVERT (Cross Drains)
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TURNOUT - Sediment Removal Efficien
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STANDARD CONSTRUCTION DETAIL #3-11
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3. Temporary bridges should be inst
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PA DEP STANDARD CONSTRUCTION DETAIL
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WETLAND CROSSING Wetland crossings
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Adapted from PA DEP GP-8 FIGURE 3.8
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FIGURE 3.10 Rigid or Flexible Pipe
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PA DEP FIGURE 3.12 In-stream Coffer
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EARTHWORK WITHIN LAKES AND PONDS NO
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FIGURE 3.15 Turbidity Barrier Insta
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DEWATERING WORK AREAS - Wherever wa
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(Additional Notes for Standard Cons
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SITE HOUSEKEEPING AND MATERIALS MAN
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Prefabricated Washout Containers Ca
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CHAPTER 4 - SEDIMENT BARRIERS AND F
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The maximum slope length above a co
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STANDARD CONSTRUCTION DETAIL #4-1 C
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COMPOST FILTER BERM - Sediment Remo
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Installation - Compost filter berms
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STANDARD CONSTRUCTION DETAIL # 4-4
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ROCK FILTER OUTLET - Sediment Remov
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York County Conservation District 3
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Wherever there is a break or change
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A chain link fence should be instal
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SEDIMENT FILTER LOG (FIBER LOG) - S
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WOOD CHIP FILTER BERM - Sediment Re
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STRAW BALE BARRIER - Sediment Remov
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NRCS FIGURE 4.4 Straw Bale Barrier
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A one foot thick layer of AASHTO #5
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The total width of the filter strip
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INLET FILTER BAG - Sediment Removal
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Adapted from Maine DEP Maximum drai
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TABLE 5.1 Pennsylvania Rainfall by
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LAND USE < 2% TABLE 5.2 Runoff Coef
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TR-55 Shallow Concentrated Flow Tha
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Figure 5.2 - RAINFALL REGION MAP A
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Figure 5.6 - RAINFALL REGION MAP E
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TABLE 5.6 5-Minute through 24-Hour
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TABLE 5.8 5-Minute through 24-Hour
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Drainage Area (A) - Determine the d
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Determination of Time of Concentrat
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CHAPTER 6 - RUNOFF CONVEYANCE BMPs
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DESIGN PROCEDURE 1. Calculate the r
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TABLE 6.3 Manning’s “n” for T
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National Technical Information Serv
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TABLE 6.6 Riprap Gradation, Filter
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TABLE 6.9 Recommended n Values to b
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TABLE 6.10 Maximum Permissible Velo
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It should be noted that Guernsey si
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Channel #1 (Diversion Channel) on W
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Channel #1 Segments “A” and “
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No more than one third of the shoot
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Stackhouse Bensinger, Inc. STANDARD
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Adapted from North Carolina DENR ST
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TEMPORARY SLOPE PIPE - Temporary sl
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BENCH - Benches (a.k.a. gradient te
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CHAPTER 7 - SEDIMENT BASINS DESIGN
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14. The discharge from a sediment b
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Adapted from VA SWCC PA DEP FIGURE
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Develop a Stage Storage Curve. Use
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Sediment shall be removed from the
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FIGURE 7.2 Skimmer Orifice Design C
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The principal spillway should be an
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Adapted from USDA, NRCS FIGURE 7.3
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H TABLE 7.3 - PIPE FLOW CAPACITY n
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TABLE 7.4 Concrete Base Requirement
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Embedded section of aluminum or alu
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Wherever total basin dewatering is
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Riprap at toe of embankment shall b
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Head TABLE 7.6 - GRASS-LINED EMERGE
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4. Once the depth of flow through t
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Anti-seep Collar Wherever soils sus
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4. The maximum spacing between coll
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Adapted from PennDOT RC-70 STANDARD
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FILTER DIAPHRAGM Filter diaphragms
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Sediment Storage Zone Dewatering Pr
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4. Greater surface area increases t
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Barrel/Riser Sediment Trap - This d
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Accumulated sediment shall be remov
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Wherever total trap dewatering is r
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At a minimum, outlet protection sho
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CHAPTER 9 - OUTLET PROTECTION As a
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FIGURE 9.1 Velocity Adjustment Nomo
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endwall. For discharges directly in
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Adapted from USDA NRCS STANDARD CON
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Adapted from USDA - NRCS FIGURE 9.3
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Determine whether maximum or minimu
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Adapted from ScourStop FIGURE 9.5 T
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STILLING BASIN (Plunge Pool) - Stil
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Adapted from USDOT, FHWA HEC 14 FIG
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Using the pipe slope (V:H) determin
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ENERGY DISSIPATER Energy dissipater
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EARTHEN LEVEL SPREADER LOCATION - E
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STRUCTURAL LEVEL SPREADER LOCATION
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The E&S plan should include such in
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Wherever the slope parallels the ro
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VA SWCC FIGURE 11.1 Stair Step Grad
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TOPSOIL APPLICATION Graded areas sh
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Site conditions such as soil limita
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Species Warm-Season Grasses Deerton
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6. Use only in extreme southeastern
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Synthetic binders, or chemical bind
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EROSION CONTROL BLANKETS - There ar
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HYDRAULICALLY APPLIED BLANKETS Hydr
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PAM Specifications Anionic PAM mixt
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Adapted from VA DSWC FIGURE 11.5 So
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City of Portland, BDS FIGURE 11.6 T
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CHAPTER 13 - UTILITY LINE PROJECTS
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more viable. HDD may be considered
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STANDARD CONSTRUCTION DETAIL #13-1
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PA DEP FIGURE 13.1 Waterbar Install
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The following points should be cons
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SKID ROADS AND SKID TRAILS The prim
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The diversion channel should have a
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PA Timber Harvesting Packet FIGURE
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CHAPTER 15 - STREAMBANK STABILIZATI
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Figure 15.1 Riprap Streambank Prote
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GABIONS and Reno mattress have been
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PA DEP FIGURE 15.4 Reno Mattress St
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Adapted from VA DSWC FIGURE 15.5 Gr
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MISCELLANEOUS HARD ARMOR TECHNIQUES
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Natural colonization by surrounding
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INSTALLATION GUIDELINES Prepare the
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Branchpacking is the alternating of
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Fabric encapsulated soil is often u
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Fiber rolls, or coir logs, are cyli
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CHAPTER 16 - GRADING STANDARDS PA D
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CHAPTER 17 - AREAS OF SPECIAL CONCE
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Adapted from USDA NRCS FIGURE 17.2
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Adapted from USDA NRCS FIGURE 17.4
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enter the Act 2 Program, which is a
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No RECOMMENDED PROCESS FOR SITES WI
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Common Contaminants of Concern: Two
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Structural (Stabilization) Erosion
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ii. The siting and function of any
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SPECIAL PROTECTION WATERSHEDS Sourc
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impacts, including suitability of g
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SLOPE FAILURES PA DEP The Problem I
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TABLE 17.1 PROCESSES LEADING TO LAN
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GEOTHERMAL WELL DRILLING Source Unk
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Well (or Total Well Field) Flows Gr
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Project: COMPLETE PLAN CHECKLIST A.
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STANDARD E&S CONTROL PLAN TECHNICAL
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“A maintenance program, which pro
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Complies Deficient N/A Hydric soils
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Complies Deficient N/A Removal of t
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Complies Deficient N/A Standard E&S
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Sediment Traps (Chapter 8) Complies
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Permanent Stabilization Topsoil rep
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APPENDIX B - STANDARD E&S WORKSHEET
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STANDARD E&S WORKSHEET #2 Compost F
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STANDARD E&S WORKSHEET # 4 Reinforc
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STANDARD E&S WORKSHEET # 6 Super Si
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STANDARD E&S WORKSHEET # 8 Rock Fil
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STANDARD E&S WORKSHEET # 10 Rationa
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STANDARD E&S WORKSHEET # 12 Sedimen
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E L E V A T I O N (FT) STANDARD E&S
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STANDARD E&S WORKSHEET # 16 Sedimen
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BASIN NO. TEMP. OR PERM. Y (FT) Z S
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STANDARD E&S WORKSHEET # 20 Riprap
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STANDARD E&S WORKSHEET # 22 PLAN PR
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15. Until the site is stabilized, a
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APPENDIX D - STANDARDS FOR MAPS AND
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PLAN DRAWINGS Each bit of informati
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e carefully preserved and stored fo
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SOIL NAME CUTBANKS CAVE CORROSIVE T
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ROUGHNESS ELEMENT DISSIPATER - This
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2. Determine Discharge Velocity (VO
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From Figure F.8, VA/VO = 1.05 VA =
Page 437 and 438: Yo / D FIGURE F.4 Dimensionless Rat
Page 439 and 440: USDOT, FHWA HEC 14 FIGURE F.6 Flow
Page 441 and 442: FIGURE F.8 Average Velocity in Abru
Page 443 and 444: FIGURE F.10 Average Depth for Abrup
Page 445 and 446: FIGURE F.12 Riprap Size for Use Dow
Page 447 and 448: EXAMPLE - Given: Circular Concrete
Page 449 and 450: USDOT, FHWA HEC 14 FIGURE F.14 Impa
Page 451 and 452: designed to discharge all anticipat
Page 453 and 454: Figure G.1. Convex Contours and Slo
Page 455 and 456: Figure G.2. Turf Reinforcement Mat
Page 457 and 458: c. For subsurface discharge level s
Page 459 and 460: asin/trap, it should be off-line du
Page 461 and 462: Design to Avoid Downstream Erosion
Page 463 and 464: Down Slope Ground Cover Table G.2.
Page 465 and 466: VIII. OUTFALL DESIGN As previously
Page 467 and 468: Figure G.10. Rill/Gully Repair Figu
Page 469 and 470: X. SELECTED REFERENCES Pennsylvania
Page 471 and 472: APPENDIX H - DUST CONTROL Descripti
Page 473 and 474: Table H.2. Adhesives Used for Dust
Page 475 and 476: Tree Health Preserving trees is not
Page 477 and 478: can have blocky aggregates. They ha
Page 479 and 480: Site Characteristics—Site charact
Page 481 and 482: Identify trees in need of care In t
Page 483 and 484: 363-2134-008 / March 31, 2012 / Pag
Page 485 and 486: Use accurate information. The plan
Page 487: The transplanting process requires
Page 491 and 492: geotextile. The plastic core is mad
Page 493 and 494: Retain a qualified arborist to perf
Page 495 and 496: Repairing Construction Injury The m
Page 497 and 498: Tree Techniques Tree injury Tree li
Page 499 and 500: Improve the aeration and drainage o
Page 501 and 502: 1995. Tree-Pruning Guidelines. (Gui
Page 503 and 504: APPENDIX J - Publication: “Unders
Page 505 and 506: ions such as calcium, magnesium, an
Page 507 and 508: Soil Structure Is Destroyed by Comp
Page 509 and 510: compaction in decent, fertile soils
Page 511 and 512: A Note on Organic Materials and Ame
Page 513 and 514: Final Strategies for Dealing with C
Page 515 and 516: This publication is available from
Page 517 and 518: 363-2134-008 / March 31, 2012 / Pag
Page 519 and 520: Aeration -----Mixing water with air
Page 521 and 522: Aquiclude -----A geologic formation
Page 523 and 524: Bedrock----- The more or less solid
Page 525 and 526: C-Horizon -----A layer of unconsoli
Page 527 and 528: Clay -----A fine-grained cohesive s
Page 529 and 530: Where: Q = Flow volume (cfs) V = Fl
Page 531 and 532: Cut and Cover -----A method of tren
Page 533 and 534: Diabase -----A rock of basaltic com
Page 535 and 536: E&S Plan -----Erosion and Sediment
Page 537 and 538: E&S Plan -----A site-specific plan
Page 539 and 540:
Filter Fabric Fence -----A sediment
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Frost Action (Soils) -----The likel
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Grade -----1. The slope of a road o
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Holding Structure -----Any excavati
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Inlet Protection -----Type of BMP u
Page 549 and 550:
Level Spreader -----An earthen or m
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Mesic -----Refers to environmental
Page 553 and 554:
NOI -----Notice of Intent Nominal S
Page 555 and 556:
Organic Soil -----Soil composed pre
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Percolation Test -----A measure of
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Pollutant -----Any contaminant or o
Page 561 and 562:
Range -----The geographic region in
Page 563 and 564:
stabilization; cutting of existing
Page 565 and 566:
Section 404 ----The section of the
Page 567 and 568:
Slope Protection -----A layer or fa
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Stable Channel Flow -----Channel fl
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stabilization techniques that consi
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Terrace -----An earthen embankment
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Trench Plug -----A flow obstruction
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Vernal Pool -----Wetlands that occu
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Y Yellowboy -----Iron oxide deposit
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26. Filtrexx, Standard Specificatio
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86. USEPA, National Pollutant Disch
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