Erosion and Sediment Pollution Control Program Manual.pdf

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Embedded section of aluminum or aluminized pipe shall be painted with zinc chromate or equivalent. Freeboard A minimum of 24 inches of freeboard is required above the elevation at which the 2 cfs per acre discharge capacity is provided — or the maximum water surface elevation while routing the anticipated peak flow from the 25-year, 24-hour storm event. If the emergency spillway is being used to discharge part of the design discharge, the 24 inch freeboard should be provided above the design flow elevation through the emergency spillway. An acceptable alternative is to provide a spillway combination with the capacity to pass the peak flow from a 100-year, 24-hour storm event with 12” of freeboard. Emergency Spillway - Every sediment basin should be provided with an emergency spillway. PA DEP The elevation of the emergency spillway crest should be at least 6” above that of the principal spillway. Emergency spillways should be located on undisturbed ground, wherever possible. Otherwise, the emergency spillway should have a TRM, riprap or other hard armor protection which extends at least 15 feet beyond the toe of the embankment to the receiving waterway (Dl), channel or other non-erosive outlet. Minimum width at the end of the armor protection (Dw) should be 0.4 times the length of the apron unless discharging directly into a channel leading away from the apron. Where a TRM is used to line the spillway down the face of the embankment, the channel at the toe of the embankment should be lined with riprap a sufficient length in both directions to prevent scour. Wherever riprap is used as a protective liner in an emergency spillway, a compacted and stabilized earthen plug should be left in place on the inner side of the spillway to prevent water from discharging through the emergency spillway until the design water elevation is reached, as shown in Standard Construction Detail #7-12). Note: Provide supporting calculations for the outlet channels of all emergency spillways. 363-2134-008 / March 31, 2012 / Page 192
PA DEP STANDARD CONSTRUCTION DETAIL # 7-12 Sediment Basin Emergency Spillway with Riprap Lining NOTE: This table is intentionally blank and should be filled in by the plan preparer. BASIN NO. Z3 (FT) Z4 (FT) TOP ELEV WTE (FT) WEIR LINING CHANNEL DISSIPATER CREST ELEV WCE (FT) WIDTH Ww (FT) Dimension PI shall be 5’ minimum. RIPRAP SIZE (R-__) RIPRAP THICK. LRt (IN) Z5 (FT) DEPTH Cd (FT) LENGTH DI (FT) 363-2134-008 / March 31, 2012 / Page 193 WIDTH Dw (FT) RIPRAP SIZE (R-___) Displaced riprap within the spillway and/or outlet channel shall be replaced immediately. RIPRAP THICK. DRt (IN)
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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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STANDARD CONSTRUCTION DETAIL # 4-16
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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
Page 161 and 162: It should be noted that Guernsey si
Page 163 and 164: Channel #1 (Diversion Channel) on W
Page 165 and 166: Channel #1 Segments “A” and “
Page 167 and 168: No more than one third of the shoot
Page 169 and 170: Stackhouse Bensinger, Inc. STANDARD
Page 171 and 172: Adapted from North Carolina DENR ST
Page 173 and 174: TEMPORARY SLOPE PIPE - Temporary sl
Page 175 and 176: STANDARD CONSTRUCTION DETAIL # 6-5
Page 177 and 178: BENCH - Benches (a.k.a. gradient te
Page 179 and 180: CHAPTER 7 - SEDIMENT BASINS DESIGN
Page 181 and 182: 14. The discharge from a sediment b
Page 183 and 184: Adapted from VA SWCC PA DEP FIGURE
Page 185 and 186: Develop a Stage Storage Curve. Use
Page 189 and 190: Sediment shall be removed from the
Page 191 and 192: PA DEP STANDARD CONSTRUCTION DETAIL
Page 193 and 194: FIGURE 7.2 Skimmer Orifice Design C
Page 195 and 196: The principal spillway should be an
Page 197 and 198: Adapted from USDA, NRCS FIGURE 7.3
Page 199 and 200: H TABLE 7.3 - PIPE FLOW CAPACITY n
Page 207 and 208: TABLE 7.4 Concrete Base Requirement
Page 209 and 210: Embedded section of aluminum or alu
Page 211: Wherever total basin dewatering is
Page 215 and 216: Riprap at toe of embankment shall b
Page 217 and 218: Head TABLE 7.6 - GRASS-LINED EMERGE
Page 219 and 220: 4. Once the depth of flow through t
Page 223 and 224: Anti-seep Collar Wherever soils sus
Page 225 and 226: 4. The maximum spacing between coll
Page 227 and 228: Adapted from PennDOT RC-70 STANDARD
Page 229 and 230: FILTER DIAPHRAGM Filter diaphragms
Page 231 and 232: Sediment Storage Zone Dewatering Pr
Page 233 and 234: 4. Greater surface area increases t
Page 237 and 238: Barrel/Riser Sediment Trap - This d
Page 239 and 240: Accumulated sediment shall be remov
Page 243 and 244: Wherever total trap dewatering is r
Page 245 and 246: At a minimum, outlet protection sho
Page 249 and 250: CHAPTER 9 - OUTLET PROTECTION As a
Page 251 and 252: FIGURE 9.1 Velocity Adjustment Nomo
Page 253 and 254: endwall. For discharges directly in
Page 257 and 258: Adapted from USDA NRCS STANDARD CON
Page 259 and 260: Adapted from USDA - NRCS FIGURE 9.3
Page 261 and 262: 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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Page 427 and 428:
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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 =
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Yo / D FIGURE F.4 Dimensionless Rat
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USDOT, FHWA HEC 14 FIGURE F.6 Flow
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FIGURE F.8 Average Velocity in Abru
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FIGURE F.10 Average Depth for Abrup
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FIGURE F.12 Riprap Size for Use Dow
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EXAMPLE - Given: Circular Concrete
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USDOT, FHWA HEC 14 FIGURE F.14 Impa
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designed to discharge all anticipat
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Figure G.1. Convex Contours and Slo
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Figure G.2. Turf Reinforcement Mat
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c. For subsurface discharge level s
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asin/trap, it should be off-line du
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Design to Avoid Downstream Erosion
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Down Slope Ground Cover Table G.2.
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VIII. OUTFALL DESIGN As previously
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Figure G.10. Rill/Gully Repair Figu
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X. SELECTED REFERENCES Pennsylvania
Page 471 and 472:
APPENDIX H - DUST CONTROL Descripti
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Table H.2. Adhesives Used for Dust
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Tree Health Preserving trees is not
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can have blocky aggregates. They ha
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Site Characteristics—Site charact
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Identify trees in need of care In t
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363-2134-008 / March 31, 2012 / Pag
Page 485 and 486:
Use accurate information. The plan
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The transplanting process requires
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Protecting Trees During Constructio
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geotextile. The plastic core is mad
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Retain a qualified arborist to perf
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Repairing Construction Injury The m
Page 497 and 498:
Tree Techniques Tree injury Tree li
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Improve the aeration and drainage o
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1995. Tree-Pruning Guidelines. (Gui
Page 503 and 504:
APPENDIX J - Publication: “Unders
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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
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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
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Aquiclude -----A geologic formation
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Bedrock----- The more or less solid
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C-Horizon -----A layer of unconsoli
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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
Page 541 and 542:
Frost Action (Soils) -----The likel
Page 543 and 544:
Grade -----1. The slope of a road o
Page 545 and 546:
Holding Structure -----Any excavati
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Inlet Protection -----Type of BMP u
Page 549 and 550:
Level Spreader -----An earthen or m
Page 551 and 552:
Mesic -----Refers to environmental
Page 553 and 554:
NOI -----Notice of Intent Nominal S
Page 555 and 556:
Organic Soil -----Soil composed pre
Page 557 and 558:
Percolation Test -----A measure of
Page 559 and 560:
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
Page 569 and 570:
Stable Channel Flow -----Channel fl
Page 571 and 572:
stabilization techniques that consi
Page 573 and 574:
Terrace -----An earthen embankment
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Trench Plug -----A flow obstruction
Page 577 and 578:
Vernal Pool -----Wetlands that occu
Page 579 and 580:
Y Yellowboy -----Iron oxide deposit
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26. Filtrexx, Standard Specificatio
Page 583:
86. USEPA, National Pollutant Disch
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