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Home My WebLink AboutSDP201300005 Plan - Approved 2013-01-22IL x x OF 10 r z 2 OF 10 EROSION & SEDIMENT CONTROL NOTES, GENERAL NOTES AND NARRATIYE 3 M O U W 10 EROSION & SEDIMENT CONTROL CONSTRUCTION DETAILS 4 OF 10 EXISTING CONDITIONS AND PHASE I EROSION & SEDIMENT CONTROL PLAN 5 OF 10 a 6 N 10 OWN 7 OF U CONSTRUCTION DETAILS I WmW 61 :> x x U fr O V -+ U >_ U z D 0 U W W Q N, U) U WmW m >af x ¢ U mOU m a a Z o c z f m a c W 0 _y J i 3 Z U 3 ® Revisions DOMINION SITE PREPARATION PERFORMANCE SPECIFICATIONS IT IS THE INTENT OF THESE SPECIFICATIONS TO HAVE A COMPLETELY PREPARED SITE FOR THE CONSTRUCTION OF AN ELECTRICAL FACILITY AT THE COMPLETION OF THE 'WORK' AS INDICATED ON THE DRAWINGS, SPECIFICATIONS, OR OTHER DOCUMENTS PROVIDED. THE REGULATIONS OF ALL LOCAL, STATE, OR FEDERAL GOVERNMENTAL BODIES HAVING JURISDICTION OVER THE WORKING AREAS SHALL BE OBSERVED AT ALL TIMES. ANY SPECIFICATIONS OR INSTRUCTIONS APPEARING ON THE DRAWINGS SHALL HAVE PRECEDENCE OVER THE WRITTEN SPECIFICATIONS WHICH APPEAR HEREIN.. IN THE EVENT THAT A DISCREPANCY OR OMISSION HAS OCCURRED, DOMINION SHALL BE CONSULTED FOR RESOLUTIONS. ALL 'WORK' SHALL BE PERFORMED IN A MANNER CONSISTENT WITH THE BEST PRACTICES OF THE TRADES INVOLVED. ALL *WORK' SHALL BE PERFORMED WITHIN THE LIMITS OF THE PROPERTY / RIGHTS -OF -WAY SHOWN ON THE DRAWINGS. THE CONTRACTOR WILL RECOGNIZE AND ABIDE BY ALL TERMS AND CONDITIONS OF PERMITS, EASEMENTS, AND AGREEMENTS RELATING TO THE PROJECT. LIMITS FOR CLEARING AND /OR GRUBBING SHALL BE AS DEFINED ON THE DRAWINGS. CLEARING SHALL CONSIST OF REMOVAL AND DISPOSAL OF BRUSH, DOWNED TIMBER, LOGS, STANDING TREES AND SNAGS, OTHER GROWTH AND ANY ITEMS THAT WOULD INTERFERE WITH CONSTRUCTION OPERATIONS. GRUBBING SHALL CONSIST OF REMOVAL AND DISPOSAL OF STUMPS, BURIED LOGS, ROOTS GREATER THAN %2' DIAMETER, AND ANY OTHER ORGANIC MATERIAL BELOW THE GROUND SURFACE. ALL CLEARED AREAS WILL BE GRUBBED UNLESS OTHERWISE NOTED. DISPOSAL OF CLEARED /GRUBBED MATERIAL BY BURNING SHALL ONLY BE USED WHEN WRITTEN APPROVAL IS OBTAINED FROM LOCAL AUTHORITIES AND DOMINION. OTHERWISE, DISPOSAL SHALL BE OUTSIDE THE LIMITS OF DOMINION CONTROLLED LAND. ALL TOPSOIL AND SURFACE SOILS CONTAINING ORGANIC MATERIAL SHALL BE REMOVED FROM THE GRUBBED AREA. TOPSOIL SHALL BE STOCKPILED FOR FUTURE. USE IN APPROVED LOCATIONS UNLESS OTHERWISE SHOWN ON THE DRAWINGS. TOPSOIL SHALL NOT BE USED AS, OR MIXED WITH, FILL MATERIAL IN THE CONSTRUCTION OF EARTH EMBANKMENTS UNLESS OTHERWISE SHOWN ON THE DRAWINGS. TOPSOIL MATERIAL USED AS A SURFACE DRESSING SHALL BE REASONABLY FREE OF.N' CINDERS, DEBRIS, AND STONES. UNSUITABLE AND EXCESS TOPSOIL MATERIAL SHALL BE DISPOSED OFFSITE. f= , �7 7 L- r i . .... _L SUBSTATION EQUIPMENT LAYOUT fAV SCALE) EXCAVATION : EXCAVATION SHALL BE ACCOMPLISHED BY CUTTING ACCURATELY TO THE CROSS SECTIONS, GRADES, AND ELEVATIONS SHOWN ON THE DRAWINGS. SOFT, UNSTABLE, OR OTHERWISE UNSATISFACTORY MATERIALS ENCOUNTERED AT THE REQUIRED GRADES SHALL BE REMOVED AS DIRECTED AND REPLACED WITH APPROVED, PROPERLY COMPACTED MATERIAL. COMMON EXCAVATION SHALL INCLUDE ALL MATERIAL WHICH CAN BE REMOVED BY COMMON EARTH EXCAVATION EQUIPMENT, OTHER THAN SOLID ROCK OR BOULDERS AND DETACHED PIECES OF ROCK, EACH EXCEEDING 2 CUBIC YARDS IN VOLUME. ROCK EXCAVATION SHALL BE MATERIAL WHICH REQUIRES THE USE OF PNEUMATIC HAMMERS AND /OR EXPLOSIVES FOR REMOVAL. SITE PREPARATION : IF EARTHWORK OPERATIONS ARE PERFORMED DURING WET SEASONS, CONTRACTOR SHALL AVOID OPERATING EQUIPMENT ON SATURATED SOILS. ANY WET SUBGRADE AREAS WHICH RECEIVE COMPACTED FILL SHALL BE DRAINED AND ALLOWED TO DRY. THE EXPOSED SUBGRADES OF THE BUILDING PAD AND ROADBEDS SHALL BE PROOFROLLED TO DETECT UNSUITABLE SOIL CONDITIONS. PROOFROLLING SHALL BE DONE AFTER A SUITABLE PERIOD OF DRY WEATHER TO AVOID DEGRADING THE SUBGRADE. PROOFROLLING SHALL BE PERFORMED WITH A HEAVILY LOADED DUMP TRUCK OR WITH SIMILAR APPROVED CONSTRUCTION EQUIPMENT. SOFT MATERIALS ENCOUNTERED SHALL BE COMPLETELY EXCAVATED AND REPLACED WITH APPROVED FILL MATERIALS. BENCHING : BENCHING SHALL CONSIST OF A SERIES OF HORIZONTAL CUTS BEGINNING AT THE TOE OF THE EXISTING SLOPED SURFACE AND CONTINUING AT EACH VERTICAL INTERSECTION OF THE PREVIOUS CUT. SATISFACTORY MATERIAL REMOVED DURING THIS OPERATION SHALL BE RECOMPACTED ALONG WITH THE NEW EMBANKMENT MATERIAL AS GENERALLY SPECIFIED, EXCEPT MOISTURE CONTENT SHALL BE MAINTAINED WITHIN 10 PERCENT OF THE OPTIMUM. BENCHING SHALL BE REQUIRED FOR ALL FILL EMBANKMENTS PLACED ON EXISTING SLOPES AS FOLLOWS : SLOPES STEEPER THAN 4:1 BUT NOT STEEPER THAN 1%2:1, THE BENCH SHALL BE AT LEAST 6 FT. IN WIDTH. EMBANKMENT : EMBANKMENT WORK SHALL CONSIST OF THE PLACEMENT AND COMPACTION OF FILL MATERIAL ABOVE THE NATURAL GROUND OR OTHER SURFACE IN CONFORMANCE WITH THE DRAWINGS. MATERIALS : APPROVED SOILS USED IN COMPACTED FILLS SHALL BE FREE OF DEBRIS AND FIBROUS ORGANIC MATERIAL. FROZEN MATERIAL WILL NOT BE PERMITTED IN THE FILL. SATISFACTORY MATERIALS SHALL COMPRISE THOSE CLASSIFIED IN ACCORDANCE WITH THE UNIFIED SOIL SYSTEM, ASTM D -2487 AS GW, GP, SW, SP, SM, AND SC. THESE MATERIALS SHALL POSSESS A MAXIMUM DRY DENSITY OF 100 u /CU.FT.OR GREATER REFERENCED TO ASTM D -698 STANDARD PROCTOR. SOILS SHALL HAVE A LIQUID LIMIT LESS THAN 40 PERCENT AND A PLASTICITY INDEX LESS THAN 15. OTHER MATERIALS, WHEN APPROVED BY ENGINEERING, MAY BE PERMITTED IN FILL AREAS. UNSATISFACTORY SOILS INCLUDE THOSE CLASSIFIED AS PT, OH OR OL, CH, MH, CL AND ML,AS REFERENCED TO ASTM 0-2487. COMPACTION COMPACTION EQUIPMENT SHALL CONSIST OF VIBRATORY OR TAMPING ROLLERS, SHEEPSFOOT ROLLER,PNUEMATIC -FIRED ROLLERS, THREE -WHEEL POWER ROLLERS, WALK BEHIND VIBRATORY ROLLERS, VIBRATORY PLATE OR OTHER APPROVED EQUIPMENT WELL SUITED TO THE SOIL BEING COMPACTED. APPROVED FILL MATERIAL SHALL BE PLACED IN UNIFORM HORIZONTAL LIFTS OF APPROXIMATELY 8' DEPTH (LOOSE MEASUREMENT), EXCEPT FOR ROAD MATERIALS ABOVE SUBGRADE ELEVATION AND THE UPPER 12' OF BUILDING PADS WHICH REQUIRE 61 LIFTS. WHERE WALK BEHIND ROLLERS AND VIBRATORY PLATE COMPACTORS ARE USED, THE LIFT THICKNESS SHALL NOT EXCEED 4'. GENERALLY, FILLS SHALL BE COMPACTED TO AT LEAST 95 PERCENT OF THE STANDARD PROCTOR MAXIMUM DRY DENSITY (ASTM D -698 ),WITH MOISTURE CONTENT RANGING BETWEEN LESS THAN 3 PERCENT UP TO THE OPTIMUM AS DETERMINED BY THE PROCTOR DENSITY TEST. THE UPPER 12" OF ROADBEDS AND CONTROL ENCLOSURE BUILDING PADS REQUIRE 98 PERCENT COMPACTION REFERENCED TO ASTM D -698, WITH MOISTURE CONTENT MAINTAINED WITHIN 2 PERCENT OF THE OPTIMUM. EACH SUCCESSIVE LIFT WILL BE PLACED ON FIRM APPROVED SUBGRADE OR COMPACTED FILL. WHERE PREVIOUS LIFTS ARE FOUND TO BE UNACCEPTABLE, THE AREA WILL BE SCARIFIED, AERATED OR MOISTENED, RECOMPACTED OR REMOVED, AND REPLACED AS REQUIRED. DRAINAGE : THE FILL SURFACE SHALL BE ADEQUATELY MAINTAINED DURING CONSTRUCTION. THE SURFACE SHALL BE SLOPED TO ACHIEVE SUFFICIENT DRAINAGE, AND TO PREVENT WATER FROM PONDING ON THE FILL. IF PRECIPITATION IS EXPECTED WHILE FILL CONSTRUCTION IS TEMPORARILY HALTED, THE SURFACE SHALL BE ROLLED WITH RUBBER - TIRED OR STEEL - DRUMMED EQUIPMENT TO IMPROVE SURFACE RUNOFF. FOR PLACEMENT DURING OR AFTER DIFFICULT WEATHER CONDITIONS, WET OR FROZEN MATERIAL SHALL BE REMOVED. FINISHED GRADE TOLERANCES THE TOP OF EARTHWORK FOR SUBSTATION PAD AND ROADWAY TRAVEL AREAS SHALL BE WITHIN 0.10 FT. ABOVE OR BELOW THE THEORETICAL GRADE. EARTH SLOPES EXCAVATED SLOPES STEEPER THAN 3:1 SHALL BE ROUGH GRADED IN A MANNER TO PROVIDE HORIZONTAL RIDGES AND GROOVES HAVING AN AVERAGE DEVIATION NO GREATER THAN 0.75 FT. FROM THE THEORETICAL LINE OF THE TYPICAL CROSS SECTION. EXCAVATED SLOPES 3:1 OR FLATTER SHALL BE UNIFORMLY FINISHED AND SHALL NOT DEVIATE FROM THE THEORETICAL PLANE SURFACE BY MORE THAN 0.50 FT. EMBANKMENT SLOPES STEEPER THAN 3:1 SHALL BE ROUGH GRADED IN A MANNER TO PROVIDE HORIZONTAL RIDGES AND GROOVES NOT MORE THAN 0.50 FT. FROM THE THEORETICAL LINE OF THE TYPICAL CROSS SECTION. EMBANKMENT SLOPES 3 :1 OR FLATTER SHALL BE UNIFORMLY FINISHED AND SHALL NOT DEVIATE FROM THE THEORETICAL PLANE SURFACE BY MORE THAN 0.50 FT. ROCK SLOPES : SHALL NOT DEVIATE FROM A PLANE SURFACE BY MORE THAN 2.0 FT. AND SHALL NOT DEVIATE FROM THEIR THEORETICAL LOCATION BY MORE THAN 2.0 FT. MEASURED ALONG ANY LINE PERPENDICULAR TO THE THEORETICAL SLOPE LINE. 11 VOOT : ITEMS REFERENCED TO THE VIRGINIA DEPARTMENT OF TRANSPORTATION SHOWN ON THE DRAWINGS SHALL CONFORM TO THE REQUIREMENTS OF THEIR LATEST STANDARDS AND SPECIFICATIONS. MANUFACTURERS' ITEMS k,29 IMBERWOOD ITEMS REFERENCED TO SPECIFIC MANUFACTURERS OR BRAND NAMES SHALL BE SUBJECT BLVD. TO ANY RECOMMENDATIONS OR LIMITATIONS PERTAINING TO THEIR INSTALLATION OR USE. REQUESTS FOR SUBSTITUTIONS MUST BE APPROVED BY ENGINEERING. SUFFICIENT INFORMATION REGARDING REQUESTS MUST BE RECEIVED BY ENGINEERING 10 DAYS IN ADVANCE OF APPROVAL. PROJECT DESCRIP_ TION: THIS SITE EXPANSION PROJECT (NUMBER 99-2310) AT ROLL ?MEAD SUBSTATION IS NECESSARY FOR THE INSTALLATION OF 230 KY LOOP SERVICE AND ASSOCIATED EQUIPMENT TO IMPROVE AREA SERVICE AND RELIABILITY. DRAWING LIST GENERAL SITE INFORMATION: TAX MAP # 32 -37 SITE VICINITY MAP SCALE: 1" - 1000' OWNER.- VIRGINIA ELECTRIC & POWER COMPANY ADDRESS: 3317 WORTH CROSSING . CHARLOTTESVILLE, YA 22911 LAT. - LONG. 38.0738.5'N LAT., 78-26101.75-LONG. ZONING.- R-1 AND R-15 TAX MAP NUMBER.- 93209-99-99-93790 USE: ELECTRICAL SUBSTATION TOTAL SITE ACERAGE: 6.72 ACRES (1.68 ACRES EX. SUBSTATION) TREE COVERAGE.• 4.25 ACRES /185,130 S.F. Wi4 TER AND SEWER.- NONE EXISTING OR PROPOSED WETLANDS.• y NO WETLANDS ARE PRESENT AT THE EXISTING SUBSTATION EXPANSION AREA, PARKING: NONE EXISTING OR PROPOSED PROPOSED BUILDINGS: NONE OFFS'ITE LAND DISTURBANCE.• NONE PROPOSED ANY OFFSITE LAND DISTURBING ACTIVITY ASSOCIATED WITH THIS PROJECT MUST HAVE AN APPROVED EROSION AND SEDIMENT CONTROL PLAN. VIRGINIA STORMWATER MANAGEMENT PROGRAM PERMIT (VSMP): NOT APPLICABLE.• DISTURBED AREA < 1 ACRE. I OF 10 TITLE SHEET - SPECIFICATIONS /GENERAL NOTES 2 OF 10 EROSION & SEDIMENT CONTROL NOTES, GENERAL NOTES AND NARRATIYE 3 OF 10 EROSION & SEDIMENT CONTROL CONSTRUCTION DETAILS 4 OF 10 EXISTING CONDITIONS AND PHASE I EROSION & SEDIMENT CONTROL PLAN 5 OF 10 SITE, GRADING, ANO DRAINAGE PLAN & PHASE II EROSION & SEDIMENT CONTROL PLAN 6 OF 10 LANDSCAPE PLAN 7 OF 10 CONSTRUCTION DETAILS I 8 OF 10 CONSTRUCTION DETAILS II 9 OF 10 DRAINAGE AREA MAP 10 OF 10 WATER DUALITY PLAN TOTAL LAND DISTURBANCE = 17,633 S.F. CIVIL ENGINEER. - CHARLENE A. HARPER, P.E., LEED AP (804) 767 -2206, FAX (804) 767 -2182 GEOS?NTEC CONSUL TAN TS, INC. 2727 ENTERPRISE PARKWAY, SUITE 103 RICHMOND, VIRGINIA 23294 SENIOR SITING AND PERMITTING SPECIALIST: COURTNEY R. FISHER (804) 771 -6948, FAX (804) 771 -6303 DOMINION YIRGINIA POWER 701 EAST CARP STREET RICHMOND, YIRGINIA 23219 �)uum,ltjL type Reviewed and Approved by the Community Development Department Date 8/-4 File #_ S 0P 20/3 • o00095 �. Via;• xl1�1! �!:'O PREPARED 84- 6E99YNTEC CONSUL TANTS 2727 ENTERPRISE PARKWAY, SUITE 103 RICHMOND, VIRGINIA 23294 (804) 767 2206 CIVIL ENGINEER: CHARLENE A. HARPER, P.E., LEED AP CALL MISS UTILITY BEFORE DIGGING 1-899-552-7991 OF 811 Ir ol•,y�,p,LTi�T Op `' 'L l m KYLE E. LaCLAIR Lic. No. 039540 LSO S bNAL a W Z W Q Q oZ >O U Q (0 U N 0000 O = N 3 d•Ut� 3 N(rN 3 •O c /r4 lZ rdh� t nl� 1y) 0 0 0 0 N O 0 Ln O O O O O N OV) %%.0- C) O cr) � Q Q, Q Z ct 0, zt O O j �m :z) Oc�i)V zt LLJ � J QLIIQ p J W �Zm Sheet l of /0 Total Sheets 0600077a.dgn O� O O O 0 Revisions EROSION AND SEDIMENTATION CONTROL NOTES - VIRGINIA ES -1. CONTRACTOR SHALL HAVE AVAILABLE A COPY OF THE LATEST VERSION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. CONTRACTOR SHALL BE RESPONSIBLE FOR THE INSTALLATION, MAINTENANCE, AND REMOVAL OF ALL CONTROL DEVICES. THESE DEVICES SHALL MEET OR EXCEED THE HIGHER OF THE REQUIREMENTS COVERED IN THIS HANDBOOK OR THE CONTROLLING AUTHORITY. ES-2. EROSION AND SEDIMENT CONTROL DEVICES,AS SHOWN ON THE PLAN, SHALL BE INSTALLED AS THE FIRST STEP OF THE GRADING PROCESS. ES -3. TEMPORARY DEVICES SHALL BE REPAIRED OR REPLACED IMMEDIATELY IF THEY CEASE TO FUNCTION AS INTENDED. TEMPORARY CONTROLS SHALL BE REMOVED WHEN AREAS ABOVE THEM BECOME STABILIZED TO THE SATISFACTION OF THE PLAN APPROVING AUTHORITIES. ES -4. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO KEEP SURROUNDING DRAINAGE BEDS FREE OF SILT CAUSED BY EROSION DURING CONSTRUCTION. ES -5. NO DISTURBED AREA SHALL REMAIN DENUDED FOR LONGER THAN 7 DAYS,EXCEPT THOSE CONTINUOUSLY BEING WORKED OR BUILT UPON. ES -6. ELECTRIC POWER, TELEPHONE, AND GAS SUPPLY TRENCHES ARE TO BE COMPACTED, SEEDED, AND MULCHED WITHIN 7 DAYS AFTER BACKFILL. ALL EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES. ES -7. THE SITE STONE IS PART OF THE PERMANENT STABILIZATION OF THE SITE. IT SHALL BE APPLIED AS SOON AS PRACTICAL AFTER FOUNDATION INSTALLATIONS ARE COMPLETE. ES -8. TEMPORARY OR PERMANENT SEEDING SHALL BE ACCOMPLISHED WITHIN 7 DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SUBSTATION LOT. ES -9. TOPSOIL SHALL BE APPLIED IN 2 -6 INCH LAYERS ON AREAS ROUGHENED USING STANDARD ROUGHENING PROCEDURES. ALL AREAS DESIGNATED TO BE SEEDED SHALL BE TOPSOILED WHEN SUFFICIENT MATERIAL IS AVAILABLE. ES -10. UNLESS OTHERWISE NOTED,ALL DITCHES AND OTHER GRASS LINED WATER WAYS SHALL BE LIMED, FERTILIZED, SEEDED, AND STABILIZED WITH EXCELSIOR BLANKET (CURLEX) IMMEDIATELY AFTER CONSTRUCTION. ES -11. TEMPORARY AND PERMANENT SEEDING SHALL CONFORM TO THE LATEST SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. *GENERAL SPECIFICATIONS FOLLOW: TEMPORARY SEEDING: PLANTING DATES BETWEEN SEPT.1 AND FEB. 15 - 50/50 MIX OF ANNUAL RYEGRASS (LOLIUM MULTI - FLORUM) & CEREAL (WINTER) RYE (SECALE CEREALE) AT A RATE OF 50 -100 LBS. /ACRE PLANTING DATES BETWEEN FEB. 16 AND APR. 30 - ANNUAL RYEGRASS (LOLIUM MULTI- FLORUM) AT A RATE PLANTING DATES BETWEEN MAY 1 AND AUG. 31 - GERMAN MILLET (SETARIA ITALICA) AT A RATE OF 50 LBS. /ACRE MULCHING SHALL BE APPLIED AS SPECIFIED ON E & S DRAWINGS. PERMANENT SEEDING SPECIFICATIONS. PIEDMONT AREA - TOTAL LBS. - TYPE - PER ACRE KENTUCKY 31 OR TURF -TYPE TALL FESCUE 175 -200 LBS., 95 -100% IMPROVED PERENNIAL RYEGRASS 0 -5% KENTUCKY BLUEGRASS 0 -5Z LIME - 2 TONS /ACRE PULVERIZED AGRICULTURAL GRADE LIMESTONE (90 LBS./1000 SGST.) FERTILIZER - 1000 LBS. /ACRE 10 -20 -10 OR EQUIVALENT NUTRIENTS (23 LBS. /1000 SO.FT.) PRn.TFrT nFSCRTPTTnN THE PURPOSE OF THIS PROJECT IS A MINOR EXPANSION TO AN EXISTING POWER SUBSTATION. THE 35'X 2501 EXPANSION RESULTS IN A DISTURBED AREA OF 17,633 SF. THIS DISTURBED AREA DOES NOT REQUIRE A VSMP PERMIT FROM VIRGINIA OCR. THE OUTFALL DESCRIBED IN THE EXISTING CONDITIONS SECTION (BELOW) IS IN STABLE CONDITION AND WILL BE MAINTAINED. THE EXISTING WOODED BUFFER AROUND THE SUBSTATION WILL NOT BE DISTURBED BY THE EXPANSION. FYTSTTNG STTF CnNnTTTnNS THE EXISTING SUBSTATION IS RELATIVELY FLAT (3% SLOPES) AND DRAINS TO A SINGLE DROP INLET. THE OUTFALL FROM THE DROP INLET DISCHARGES TO A RIPRAP STABILIZED CHANNEL THAT LEADS TO A FOREST LAKES COMMUNITY ASSOCIATION LAKE IN THE POWELL CREEK WATERSHED. An.TAfFNT PRnPFRTY THE SITE ACCESS ROAD CONNECTS TO WORTH CROSSING. THE SOUTH- EASTERN PROPERTY BOUNDARY IS THE LAKE OWNED BY THE FOREST LAKES COMMUNITY ASSOCIATION. THE SITE IS BORDERED ON THE WEST BY DAVITA (HIGHLIFE, LLC)AND BY 2 UNDEVELOPED PROPERTIES OWNED BY ESTES PARK,LLC AS WELL AS WORTH CROSSING CENTER ON THE NORTH. m nFF -STTF ARFAS THERE WILL BE NO IMPACT TO OFF -SITE AREAS. Typical Drawing) Library Looation Cell Name Inf ormation 0 1 THE PREDOMINANT SOILS ON THE SITE ARE ELIOAK CLAY LOAM, 7 TO 15 PERCENT SLOPES, SEVERELY ERODED (280). ELIOAK LOAM, 2 TO 7 PERCENT SLOPES (271B) AND GLENELG LOAM, 7 TO 15 PERCENT SLOPES (340 ARE ALSO PRESENT, THOUGH NOT WITHIN THE LIMITS OF DISTURBANCE. ELIOAK CLAY LOAM IS A STRONGLY SLOPING TO MODERATELY STEEP, VERY DEEP, WELL DRAINED SOIL. TYPICALLY THE SURFACE LAYER IS CLAY LOAM ABOUT 8 INCHES THICK. THE SURFACE LAYER HAS A MODERATE CONTENT OF ORGANIC MATTER. THE SLOWEST PERMEABILITY IS MODERATELY SLOW. IT HAS A LOW AVAILABLE WATER CAPACITY AND A MODERATE SHRINK SWELL POTENTIAL. THIS SOIL IS NOT FLOODED AND IS NOT PONDED. THE SEASONAL HIGH WATER TABLE IS AT A DEPTH OF MORE THAN 6 FEET. THE LAND CAPABILITY CLASSIFICATION IS 4E. THE VIRGINIA SOIL MANAGEMENT GROUP IS X. THIS SOIL IS NOT HYDRIC. ELIOAK LOAM IS A GENTLY SLOPING TO MODERATELY SLOPING, VERY DEEP, WELL DRAINED SOIL. TYPICALLY THE SURFACE LAYER IS LOAM ABOUT 8 INCHES THICK. THE SURFACE LAYER HAS A MODERATE CONTENT OF ORGANIC MATTER. THE SLOWEST PERMEABILITY IS MODERATELY SLOW. IT HAS A MODERATE AVAILABLE WATER CAPACITY AND A LOW SHRINK SWELL POTENTIAL. THIS SOIL IS NOT FLOODED AND IS NOT PONDED. THE SEASONAL HIGH WATER TABLE IS AT A DEPTH OF MORE THAN 6 FEET. THE LAND CAPABILITY CLASSIFICATION IS 2E. THE VIRGINIA SOIL MANAGEMENT GROUP IS X. THIS SOIL IS NOT HYDRIC. GLENELG LOAM IS A STRONGLY SLOPING TO MODERATELY STEEP, VERY DEEP, WELL DRAINED SOIL. TYPICALLY THE SURFACE LAYER IS LOAM ABOUT 8 INCHES THICK. THE SURFACE LAYER HAS A MODERATE CONTENT OF ORGANIC MATTER. THE SLOWEST PERMEABILITY IS MODERATE. IT HAS A HIGH AVAILABLE WATER CAPACITY AND A LOW SHRINK SWELL POTENTIAL. THIS SOIL IS NOT FLOODED AND IS NOT PONDED. THE SEASONAL HIGH WATER TABLE IS AT A DEPTH OF MORE THAN 6 FEET. THE LAND CAPABILITY CLASSIFICATION IS 3E. THE VIRGINIA SOIL MANAGEMENT GROUP IS U. THIS SOIL IS NOT HYDRIC. rRTTTCAI FRnctm ARFAS STEEP SLOPES EXIST WITHIN THE LIMITS OF DISTURBANCE AND WILL BE REPLACED WITH A RETAINING WALL. FRnSTnN ANn -qFnTMFNT rnNTRnI MFASIIRFc UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE HANDBOOK. THE MINIMUM STANDARDS OF THE VESCR SHALL BE ADHERED TO UNLESS OTHERWISE WAIVED OR APPROVED BY A VARIANCE. STRIIrTIIRAI PRAT` MR 1. OUTLET PROTECTION - 3.18 RIPRAP EXISTS AT THE OUTFALL. 2. SILT FENCE BARRIER - 3.05 SILT FENCE SEDIMENT BARRIERS WILL BE INSTALLED DOWNSLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT -LADEN RUNOFF FROM SHEET FLOW AS INDICATED ON SHEET 5. 3. TREE PROTECTION - 3.38 A FENCE BARRIER IS TO BE PLACED AROUND THE TREES AND VEGETATED AREAS WHICH WILL NOT BE DISTURBED TO PROTECT THE TREES AND OTHER VEGETATION FROM CONSTRUCTION EQUIPMENT AND SOIL COMPACTION. 4. STORM DRAIN INLET PROTECTION- 3.07 ALL STORM SEWER INLETS SHALL BE PROTECTED DURING CONSTRUCTION. SEDIMENT -LADEN WATER SHALL BE FILTERED BEFORE ENTERING THE STORM SEWER INLETS. VFr.FTATTVF PRArTTfFS 1. TOPSOILING (STOCKPILE) - 3.30 TOPSOIL WILL BE STRIPPED FROM AREAS TO BE GRADED AND STOCKPILED FOR LATER USE. STOCKPILE LOCATIONS SHALL BE LOCATED OFF -SITE AND ARE TO BE STABILIZED WITH TEMPORARY VEGETATION. PRIOR TO LAND - DISTURBING ACTIVITIES,THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY E &S PLAN TO THE OWNER COVERING THE OFF -SITE STOCKPILE AREA WHICH WOULD HAVE TO BE APPROVED BY THE PLAN APPROVING AUTHORITY BEFORE ANY OFF -SITE ACTIVITY COMMENCES. 2. TEMPORARY SEEDING - 3.31 ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR EXTENDED PERIODS OF TIME SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION IMMEDIATELY FOLLOWING GRADING. SELECTION OF THE SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR IT IS APPLIED. 2 II 13 I I 14 I I 15 I 3. EROSION CONTROL BLANKETS - 3.36 OR MULCH - 3.35 EROSION CONTROL BLANKETS WILL BE INSTALLED OVER FILL SLOPES WHICH HAVE BEEN BROUGHT TO FINAL GRADE AND HAVE BEEN SEEDED TO PROTECT THE SLOPES FROM RILL AND GULLY EROSION AND TO ALLOW SEED TO GERMINATE PROPERLY.MULCH (STRAW OR FIBER) WILL BE USED ON RELATIVELY FLAT AREAS AND WILL BE APPLIED AS A SECOND STEP IN THE SEEDING OPERATION. MANAGEMENT STBATFATFS 1. CONSTRUCTION WILL BE SEQUENCED SO THAT GRADING OPERATIONS CAN BEGIN AND END AS QUICKLY AS POSSIBLE. 2. SEDIMENT TRAPPING MEASURES WILL BE INSTALLED AS A FIRST STEP IN GRADING AND WILL IBE SEEDED AND MULCHED IMMEDIATELY FOLLOWING INSTALLATION. 3. TEMPORARY SEEDING OR OTHER STABILIZATION WILL FOLLOW IMMEDIATELY AFTER GRADING. 4. AREAS WHICH ARE NOT TO BE DISTURBED WILL BE CLEARLY MARKED BY FLAGS, SIGNS, ETC. 5. THE JOB SUPERINTENDENT SHALL BE (RESPONSIBLE FOR THE INSTALLATION AND MAINTENANCE OF ALL EROSION AND SEDIMENT CONTROL PRACTICES. 6. AFTER ACHIEVING ADEQUATE STABILIZiATION, THE TEMPORARY E &S CONTROLS WILL BE CLEANED UP AND REMOVED. PERMANENT STARTI T7ATTnN ALL AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH PERMANENT SEEDING IMMEDIATELY FOLLOWING FINISH GRAOING.SEEDING SHALL BE DONE WITH KENTUCKY 31 TALL FESCUE ACCORDING TO ,STD. & SPEC. 3.32, PERMANENT SEEDING, OF THE HANDBOOK. EROSION CONTROL BLANKETS WILL BE INSTALLED OVER FILL SLOPES WHICH HAVE BEEN BROUGHT TO FINAL GRADE AND HAVE BEEN SEEDED TO PROTECT THE SLOPES FROM RILL AND GULLY EROSION AND TO ALLOW SEED TO GERMINATE PROPERLY. MULCH (STRAW OR FIBER) WILL BIE USED ON RELATIVELY FLAT AREAS. IN ALL SEEDING (OPERATIONS, SEED, FERTILIZER AND LIME WILL BE APPLIED PRIOR TO MULCHING. STnRMWATER MANAAFMFNT CALCULATION OF RUNOFF BEFORE AND AFTER DEVELOPMENT INDICATES THAT THERE WILL BE A NET INCREASE IN PEAK RUNOFF AS A RESULT OF PROJECT DEVELOPMENT. CONSEQUENTLY, MANAGEMENT VOLUME AND OUTFLOW CONTROL IS PROVIDED IN THE OVERSIZED STORM DRAIN PIPES. IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAINFALL. THE FOLLOWING ITEfMS WILL BE CHECKED IN PARTICULAR: 1. THE GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP WHICH WILL PREVENT DRAINAGE. IF THE GRAVEL IS CLOGGED BY SEDIMENT „IT SHALL BE REMOVED AND CLEANED OR REPLACED. 2. THE SILT FENCE BARRIER WILL BE CHECKED REGULARLY FOR UNDERMINING OR DETERIORATION OF THE FABRIC. SEDIMENT SHALL BE REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHES HALF WAY TO THE TOP OF THE BARRIER. 3. THE SEEDED AREAS WILL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RE- SEEDED AS NEEDED. FRCISTCIN ANTI SFTITMFNT rnNTRCII I AW ANTI RFrlll ATTaNS 20111 4VAC50- 30 -40. MINIMUM STANDARDS AN EROSION AND SEDIMENT CONTROL PROGRAM ADOPTED BY A DISTRICT OR LOCALITY MUST BE CONSISTENT WITH THE FOLLOWING CRITERIA. TECHNIQUES AND METHODS: MS-L PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN STEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. MS -2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCKPILES AND BORROW AREAS SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING MEASURES.THE APPLICANT IS RESPONSIBLE FOR THE TEMPORARY PROTECTION AND PERMANENT STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS WELL AS BORROW AREAS AND SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE. MS -3.A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMA- NENTLY STABILIZED. PERMANENT VEGETATION SMALL NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT IS UNIFORM,MATURE ENOUGH TO SURVIVE AND WILL INHIBIT EROSION. MS -4. SEDIMENT BASINS AND TRAPS, PERIMETER DIKES, SEDIMENT BARRIERS AND OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP IN ANY LAND- DISTURBING ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. 7 8 9 10 11 MS -5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. MS -6. SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DESIGNED AND CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY THE TRAP OR BASIN. A. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA AND THE TRAP SHALL ONLY CONTROL DRAINAGE AREAS LESS THAN THREE ACRES. B. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED OF FLOW FROM DRAINAGE AREAS GREATER THAN OR EQUAL TO THREE ACRES SHALL BE CONTROLLED BY A SEDIMENT BASIN. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT BASIN SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA. THE OUTFALL SYSTEM SHALL, AT A MINIMUM, MAINTAIN THE STRUCTURAL INTEGRITY OF THE BASIN DURING A 25 -YEAR STORM OF 24 -HOUR DURATION. RUNOFF COEFFICIENTS USED IN RUNOFF CALCULATIONS SHALL CORRESPOND TO A BARE EARTH CONDITION OR THOSE CONDITIONS EXPECTED TO EXIST WHILE THE SEDIMENT BASIN IS UTILIZED. MS -7. CUT AND FILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION. SLOPES THAT ARE FOUND TO BE ERODING EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED WITH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED. MS -8. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME OR SLOPE DRAIN STRUCTURE. MS -9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED. MS-10.ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT SEDIMENT -LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT. MS- 11.BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS OR PIPES ARE MADE OPERATIONAL, ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN BOTH THE CONVEYANCE CHANNEL AND RECEIVING CHANNEL. MS -12. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE TAKEN TO MINIMIZE ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE DURING CONSTRUCTION. NONERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NONERODIBLE COVER MATERIALS. MS- 13.WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES MORE THAN TWICE IN ANY SIX -MONTH PERIOD,A TEMPORARY VEHICULAR STREAM CROSSING CONSTRUCTED OF NONERODIBLE MATERIAL SHALL BE PROVIDED. MS- 14.ALL APPLICABLE FEDERAL,STATE AND LOCAL REGULATIONS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET. MS- 15.THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED. MS-16. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION TO OTHER APPLICABLE CRITERIA: A. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME. B.EXCAVATEO MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES. C. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE.OR BOTH,AND DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING STREAMS OR OFF -SITE PROPERTY. O.MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE STABILIZATION. E.RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESE REGULATIONS.F.APPLICABLE SAFETY REGULATIONS SHALL BE COMPLIED WITH. MS -17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE,THE ROAD SURFACE SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTED TO A SEDIMENT CONTROL DISPOSAL AREA.STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. THIS PROVISION SHALL APPLY TO INDIVIDUAL DEVELOPMENT LOTS AS WELL AS TO LARGER LAND-DISTURBING ACTIVITIES. B/M Assembly Pipe Stand Foundation Cells (Pier) Pipe Stand Foundation Cells (Sproad)l Foundation Cells for Other Typioal Struotures (Pier) (Spread) 12 MS- 18.ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED,UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM AUTHORITY. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. MS-19. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE PROTECTED FROM SEDIMENT DEPOSITION, EROSION AND DAMAGE DUE TO INCREASES IN VOLUME, VELOCITY AND PEAK FLOW RATE OF STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM OF 24 -HOUR DURATION IN ACCORDANCE WITH THE FOLLOWING STANDARDS AND CRITERIA: A. CONCENTRATED STORMWATER RUNOFF LEAVING A DEVELOPMENT SITE SHALL BE DISCHARGED DIRECTLY INTO AN ADEQUATE NATURAL OR MAN -MADE RECEIVING CHANNEL, PIPE OR STORM SEWER SYSTEM. FOR THOSE SITES WHERE RUNOFF IS DISCHARGED INTO A PIPE OR PIPE SYSTEM, DOWNSTREAM STABILITY ANALYSES AT THE OUTFALL OF THE PIPE OR PIPE SYSTEM SHALL BE PERFORMED. B. ADEQUACY OF ALL CHANNELS AND PIPES SHALL BE VERIFIED IN THE FOLLOWING MANNER: (1) THE APPLICANT SHALL DEMONSTRATE THAT THE TOTAL DRAINAGE AREA TO THE POINT OF ANALYSIS WITHIN THE CHANNEL IS ONE HUNDRED TIMES GREATER THAN THE CONTRIBUTING DRAINAGE AREA OF THE PROJECT IN QUESTION; OR (2)(A)NATURAL CHANNELS SHALL BE ANALYZED BY THE USE OF A TWO -YEAR STORM TO VERIFY THAT STORMWATER WILL NOT OVERTOP CHANNEL BANKS NOR CAUSE EROSION OF CHANNEL BED OR BANKS. (B) ALL PREVIOUSLY CONSTRUCTED MAN -MADE CHANNELS SHALL BE ANALYZED BY THE USE OF A TEN -YEAR STORM TO VERIFY THAT STORMWATER WILL NOT OVERTOP ITS BANKS AND BY THE USE OF A TWO -YEAR STORM TO DEMONSTRATE THAT STORMWATER WILL NOT CAUSE EROSION OF CHANNEL BED OR BANKS; AND (C)PIPES AND STORM SEWER SYSTEMS SHALL BE ANALYZED BY THE USE OF A TEN -YEAR STORM TO VERIFY THAT STORMWATER WILL BE CONTAINED WITHIN THE PIPE OR SYSTEM. C. IF EXISTING NATURAL RECEIVING CHANNELS OR PREVIOUSLY CONSTRUCTED MAIN -MADE CHANNELS OR PIPES ARE NOT ADEQUATE, THE APPLICANT SHALL: (1) IMPROVE THE CHANNELS TO A CONDITION WHERE A TEN -YEAR STORM WILL NOT OVERTOP THE BANKS AND A TWO -YEAR STORM WILL NOT CAUSE EROSION TO THE CHANNEL BED OR BANKS; OR (2) IMPROVE THE PIPE OR PIPE SYSTEM TO A CONDITION WHERE THE TEN -YEAR STORM IS CONTAINED WITHIN THE APPURTENANCES ;(OR (3) DEVELOP A SITE DESIGN THAT WILL NOT CAUSE THE PRE-DEVELOPMENT PEAK RUNOFF RATE FROM A TWO -YEAR STORM TO INCREASE WHEN RUNOFF OUTFALLS INTO A NATURAL CHANNEL OR WILL NOT CAUSE THE PRE-DEVELOPMENT PEAK RUNOFF RATE FROM A TEN -YEAR STORM TO INCREIASE WHEN RUNOFF OUTFALLS INTO A MAN -MADE CHANNEL; OR (4) PROVIDE A COMBINATION OF CHANNEL IMPROVEMENT, STORMWATER DETiENTION OR OTHER MEASURES WHICH IS SATISFACTORY TO THE PLAN-APPROVING AUTHORITY TO PREVENT DOWNSTREAM EROSION. D. THE APPLICANT SHALL PROVIDE EVIDENCE OF PERMISSION TO MAKE THE IMPROVEMENTS. E. ALL HYDROLOGIC ANALYSES SHALL BE BASED ON THE EXISTING WATERSHED CHARACTERISTICS AND THE ULTIMATE DEVELOPMENT OF THE SUBJECT PROJECT. F. IF THE APPLICANT CHOOSES AN OPTION THAT INCLUDES STORMWATER DETENTION, HE SHALL OBTAIN APPROVAL FROM THE LOCALITY OF A PLAN FOR MAINTENANCE OF THE DETENTION FACILITIES. THE PLAN SHALL SET FORTH THE MAINTENANCE REQUIREMENTS OF THE FACILITY AND THE PERSON RESPONSIBLE FOR PERFORMING THE MAINTENANCE. G. OUTFALL FROM A DETENTION FACILITY SHALL BE DISCHARGED TO A RECEIVING CHANNEL, AND ENERGY DISSIPATORS SHALL BE PLACED AT THE OUTFALL OF ALL DETENTION FACILITIES AS NECESSARY TO PROVIDE A STABILIZED TRANSITION FROM THE FACILITY TO THE RECEIVING CHANNEL. H. ALL ON -SITE CHANNELS MUST BE VERIFIED TO BE ADEQUATE. I. INCREASED VOLUMES OF SHEET FLOWS THAT MAY CAUSE EROSION OR SEDIMENTATION ON ADJACENT PROPERTY SHALL BE DIVERTED TO A STABLE OUTLET, ADEQUATE CHANNEL, PIPE OR PIPE SYSTEM, OR TO A DETENTION FACILITY. REFERENCE SHEET NUMBER 3 OF 10 FOR EROSION & SEDIMENTATION CONTROL DETAILS. Steel Detail & Assembly Dominion° Professional Enc,. ineer Approval E� 'W/A 0 *D f� ili Inot _ y� oP P CHARL NE A. F) RRER Lic. No. 0360 9 tA J. IN APPLYING THESE STORMWATER MANAGEMENT CRITERIA, INDIVIDUAL LOTS OR PARCELS IN A RESIDENTIAL, COMMERCIAL OR INDUSTRIAL DEVELOPMENT SHALL NOT BE CONSIDERED TO BE SEPARATE DEVELOPMENT PROJECTS. INSTEAD, THE DEVELOPMENT, AS A WHOLE, SHALL BE CONSIDERED TO BE A SINGLE DEVELOPMENT PROJECT. HYDROLOGIC PARAMETERS THAT REFLECT THE ULTIMATE DEVELOPMENT CONDITION SHALL BE USED IN ALL ENGINEERING CALCULATIONS. K. ALL MEASURES USED TO PROTECT PROPERTIES AND WATERWAYS SHALL BE EMPLOYED IN A MANNER WHICH MINIMIZES IMPACTS ON THE PHYSICAL, CHEMICAL AND BIOLOGICAL INTEGRITY OF RIVERS, STREAMS AND OTHER WATERS OF THE STATE. 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE - CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625 -02 -00 EROSION AND SEDIMENT CONTROL REGULATIONS. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE SORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF- PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. IL ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER DEBRIS. 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13 -301 OF THE CODE OF ALBEMARLE. 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7 :00AM TO 9 :00PM. 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAN MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE 0 SLIDES, SINKING, OR COLLAPSE. 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS /ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS /100SF.ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS/1000SF', INCORPORATED INTO THE TOP 4 -6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT 1000LBS /ACRE AND CONSIST OF A 10 -20 -10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 180LBS /ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0 -5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 80LBS /100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED IMMEDIATELY. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED,SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. 21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WITHIN 1 YEAR OF THE DATE OF APPROVAL. (WATER PROTECTION ORDINANCE SECTION 17- 2040.) 22. PERMANENT VEGETATION SHALL BE INSTALLED ON ALL DENUDED AREAS WITHIN NINE (9) MONTHS AFTER THE DATE THE LAND DISTURBING ACTIVITY COMMENCED. (WATER PROTECTION ORDINANCE SECTION 17- 2076) mvhl _7 Dominion EROSION & SEDIMENT CONTROL NOTES, GENERAL NOTES AND NARRATIVE HOLLYMEAD SUBSTATION ALBEMARLE COUNTY VIRGINIA Name Date Project No. Sheet No. signed by: CAH 1/10/13 992310 xovals CAH 1/10/13 Scale 2 OF 10 rovals N.T.S Cad File Name 0600- 07$a.dg IPLOTTED. $$$* **$*$$$SYTIME 9�'i Revisions OMMOOM■ Drawing No. 0600 -078a W 2 a M M M M M M W 01o� W m� � a • C 0 a a a O Je tll m a 0 Z U Revisions EROSION AND SEDIMENTATION CONTROL NOTES - VIRGINIA ES -1. CONTRACTOR SHALL HAVE AVAILABLE A COPY OF THE LATEST VERSION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. CONTRACTOR SHALL BE RESPONSIBLE FOR THE INSTALLATION, MAINTENANCE, AND REMOVAL OF ALL CONTROL DEVICES. THESE DEVICES SHALL MEET OR EXCEED THE HIGHER OF THE REQUIREMENTS COVERED IN THIS HANDBOOK OR THE CONTROLLING AUTHORITY. ES-2. EROSION AND SEDIMENT CONTROL DEVICES,AS SHOWN ON THE PLAN, SHALL BE INSTALLED AS THE FIRST STEP OF THE GRADING PROCESS. ES -3. TEMPORARY DEVICES SHALL BE REPAIRED OR REPLACED IMMEDIATELY IF THEY CEASE TO FUNCTION AS INTENDED. TEMPORARY CONTROLS SHALL BE REMOVED WHEN AREAS ABOVE THEM BECOME STABILIZED TO THE SATISFACTION OF THE PLAN APPROVING AUTHORITIES. ES -4. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO KEEP SURROUNDING DRAINAGE BEDS FREE OF SILT CAUSED BY EROSION DURING CONSTRUCTION. ES -5. NO DISTURBED AREA SHALL REMAIN DENUDED FOR LONGER THAN 7 DAYS,EXCEPT THOSE CONTINUOUSLY BEING WORKED OR BUILT UPON. ES -6. ELECTRIC POWER, TELEPHONE, AND GAS SUPPLY TRENCHES ARE TO BE COMPACTED, SEEDED, AND MULCHED WITHIN 7 DAYS AFTER BACKFILL. ALL EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES. ES -7. THE SITE STONE IS PART OF THE PERMANENT STABILIZATION OF THE SITE. IT SHALL BE APPLIED AS SOON AS PRACTICAL AFTER FOUNDATION INSTALLATIONS ARE COMPLETE. ES -8. TEMPORARY OR PERMANENT SEEDING SHALL BE ACCOMPLISHED WITHIN 7 DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SUBSTATION LOT. ES -9. TOPSOIL SHALL BE APPLIED IN 2 -6 INCH LAYERS ON AREAS ROUGHENED USING STANDARD ROUGHENING PROCEDURES. ALL AREAS DESIGNATED TO BE SEEDED SHALL BE TOPSOILED WHEN SUFFICIENT MATERIAL IS AVAILABLE. ES -10. UNLESS OTHERWISE NOTED,ALL DITCHES AND OTHER GRASS LINED WATER WAYS SHALL BE LIMED, FERTILIZED, SEEDED, AND STABILIZED WITH EXCELSIOR BLANKET (CURLEX) IMMEDIATELY AFTER CONSTRUCTION. ES -11. TEMPORARY AND PERMANENT SEEDING SHALL CONFORM TO THE LATEST SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. *GENERAL SPECIFICATIONS FOLLOW: TEMPORARY SEEDING: PLANTING DATES BETWEEN SEPT.1 AND FEB. 15 - 50/50 MIX OF ANNUAL RYEGRASS (LOLIUM MULTI - FLORUM) & CEREAL (WINTER) RYE (SECALE CEREALE) AT A RATE OF 50 -100 LBS. /ACRE PLANTING DATES BETWEEN FEB. 16 AND APR. 30 - ANNUAL RYEGRASS (LOLIUM MULTI- FLORUM) AT A RATE PLANTING DATES BETWEEN MAY 1 AND AUG. 31 - GERMAN MILLET (SETARIA ITALICA) AT A RATE OF 50 LBS. /ACRE MULCHING SHALL BE APPLIED AS SPECIFIED ON E & S DRAWINGS. PERMANENT SEEDING SPECIFICATIONS. PIEDMONT AREA - TOTAL LBS. - TYPE - PER ACRE KENTUCKY 31 OR TURF -TYPE TALL FESCUE 175 -200 LBS., 95 -100% IMPROVED PERENNIAL RYEGRASS 0 -5% KENTUCKY BLUEGRASS 0 -5Z LIME - 2 TONS /ACRE PULVERIZED AGRICULTURAL GRADE LIMESTONE (90 LBS./1000 SGST.) FERTILIZER - 1000 LBS. /ACRE 10 -20 -10 OR EQUIVALENT NUTRIENTS (23 LBS. /1000 SO.FT.) PRn.TFrT nFSCRTPTTnN THE PURPOSE OF THIS PROJECT IS A MINOR EXPANSION TO AN EXISTING POWER SUBSTATION. THE 35'X 2501 EXPANSION RESULTS IN A DISTURBED AREA OF 17,633 SF. THIS DISTURBED AREA DOES NOT REQUIRE A VSMP PERMIT FROM VIRGINIA OCR. THE OUTFALL DESCRIBED IN THE EXISTING CONDITIONS SECTION (BELOW) IS IN STABLE CONDITION AND WILL BE MAINTAINED. THE EXISTING WOODED BUFFER AROUND THE SUBSTATION WILL NOT BE DISTURBED BY THE EXPANSION. FYTSTTNG STTF CnNnTTTnNS THE EXISTING SUBSTATION IS RELATIVELY FLAT (3% SLOPES) AND DRAINS TO A SINGLE DROP INLET. THE OUTFALL FROM THE DROP INLET DISCHARGES TO A RIPRAP STABILIZED CHANNEL THAT LEADS TO A FOREST LAKES COMMUNITY ASSOCIATION LAKE IN THE POWELL CREEK WATERSHED. An.TAfFNT PRnPFRTY THE SITE ACCESS ROAD CONNECTS TO WORTH CROSSING. THE SOUTH- EASTERN PROPERTY BOUNDARY IS THE LAKE OWNED BY THE FOREST LAKES COMMUNITY ASSOCIATION. THE SITE IS BORDERED ON THE WEST BY DAVITA (HIGHLIFE, LLC)AND BY 2 UNDEVELOPED PROPERTIES OWNED BY ESTES PARK,LLC AS WELL AS WORTH CROSSING CENTER ON THE NORTH. m nFF -STTF ARFAS THERE WILL BE NO IMPACT TO OFF -SITE AREAS. Typical Drawing) Library Looation Cell Name Inf ormation 0 1 THE PREDOMINANT SOILS ON THE SITE ARE ELIOAK CLAY LOAM, 7 TO 15 PERCENT SLOPES, SEVERELY ERODED (280). ELIOAK LOAM, 2 TO 7 PERCENT SLOPES (271B) AND GLENELG LOAM, 7 TO 15 PERCENT SLOPES (340 ARE ALSO PRESENT, THOUGH NOT WITHIN THE LIMITS OF DISTURBANCE. ELIOAK CLAY LOAM IS A STRONGLY SLOPING TO MODERATELY STEEP, VERY DEEP, WELL DRAINED SOIL. TYPICALLY THE SURFACE LAYER IS CLAY LOAM ABOUT 8 INCHES THICK. THE SURFACE LAYER HAS A MODERATE CONTENT OF ORGANIC MATTER. THE SLOWEST PERMEABILITY IS MODERATELY SLOW. IT HAS A LOW AVAILABLE WATER CAPACITY AND A MODERATE SHRINK SWELL POTENTIAL. THIS SOIL IS NOT FLOODED AND IS NOT PONDED. THE SEASONAL HIGH WATER TABLE IS AT A DEPTH OF MORE THAN 6 FEET. THE LAND CAPABILITY CLASSIFICATION IS 4E. THE VIRGINIA SOIL MANAGEMENT GROUP IS X. THIS SOIL IS NOT HYDRIC. ELIOAK LOAM IS A GENTLY SLOPING TO MODERATELY SLOPING, VERY DEEP, WELL DRAINED SOIL. TYPICALLY THE SURFACE LAYER IS LOAM ABOUT 8 INCHES THICK. THE SURFACE LAYER HAS A MODERATE CONTENT OF ORGANIC MATTER. THE SLOWEST PERMEABILITY IS MODERATELY SLOW. IT HAS A MODERATE AVAILABLE WATER CAPACITY AND A LOW SHRINK SWELL POTENTIAL. THIS SOIL IS NOT FLOODED AND IS NOT PONDED. THE SEASONAL HIGH WATER TABLE IS AT A DEPTH OF MORE THAN 6 FEET. THE LAND CAPABILITY CLASSIFICATION IS 2E. THE VIRGINIA SOIL MANAGEMENT GROUP IS X. THIS SOIL IS NOT HYDRIC. GLENELG LOAM IS A STRONGLY SLOPING TO MODERATELY STEEP, VERY DEEP, WELL DRAINED SOIL. TYPICALLY THE SURFACE LAYER IS LOAM ABOUT 8 INCHES THICK. THE SURFACE LAYER HAS A MODERATE CONTENT OF ORGANIC MATTER. THE SLOWEST PERMEABILITY IS MODERATE. IT HAS A HIGH AVAILABLE WATER CAPACITY AND A LOW SHRINK SWELL POTENTIAL. THIS SOIL IS NOT FLOODED AND IS NOT PONDED. THE SEASONAL HIGH WATER TABLE IS AT A DEPTH OF MORE THAN 6 FEET. THE LAND CAPABILITY CLASSIFICATION IS 3E. THE VIRGINIA SOIL MANAGEMENT GROUP IS U. THIS SOIL IS NOT HYDRIC. rRTTTCAI FRnctm ARFAS STEEP SLOPES EXIST WITHIN THE LIMITS OF DISTURBANCE AND WILL BE REPLACED WITH A RETAINING WALL. FRnSTnN ANn -qFnTMFNT rnNTRnI MFASIIRFc UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE HANDBOOK. THE MINIMUM STANDARDS OF THE VESCR SHALL BE ADHERED TO UNLESS OTHERWISE WAIVED OR APPROVED BY A VARIANCE. STRIIrTIIRAI PRAT` MR 1. OUTLET PROTECTION - 3.18 RIPRAP EXISTS AT THE OUTFALL. 2. SILT FENCE BARRIER - 3.05 SILT FENCE SEDIMENT BARRIERS WILL BE INSTALLED DOWNSLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT -LADEN RUNOFF FROM SHEET FLOW AS INDICATED ON SHEET 5. 3. TREE PROTECTION - 3.38 A FENCE BARRIER IS TO BE PLACED AROUND THE TREES AND VEGETATED AREAS WHICH WILL NOT BE DISTURBED TO PROTECT THE TREES AND OTHER VEGETATION FROM CONSTRUCTION EQUIPMENT AND SOIL COMPACTION. 4. STORM DRAIN INLET PROTECTION- 3.07 ALL STORM SEWER INLETS SHALL BE PROTECTED DURING CONSTRUCTION. SEDIMENT -LADEN WATER SHALL BE FILTERED BEFORE ENTERING THE STORM SEWER INLETS. VFr.FTATTVF PRArTTfFS 1. TOPSOILING (STOCKPILE) - 3.30 TOPSOIL WILL BE STRIPPED FROM AREAS TO BE GRADED AND STOCKPILED FOR LATER USE. STOCKPILE LOCATIONS SHALL BE LOCATED OFF -SITE AND ARE TO BE STABILIZED WITH TEMPORARY VEGETATION. PRIOR TO LAND - DISTURBING ACTIVITIES,THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY E &S PLAN TO THE OWNER COVERING THE OFF -SITE STOCKPILE AREA WHICH WOULD HAVE TO BE APPROVED BY THE PLAN APPROVING AUTHORITY BEFORE ANY OFF -SITE ACTIVITY COMMENCES. 2. TEMPORARY SEEDING - 3.31 ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR EXTENDED PERIODS OF TIME SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION IMMEDIATELY FOLLOWING GRADING. SELECTION OF THE SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR IT IS APPLIED. 2 II 13 I I 14 I I 15 I 3. EROSION CONTROL BLANKETS - 3.36 OR MULCH - 3.35 EROSION CONTROL BLANKETS WILL BE INSTALLED OVER FILL SLOPES WHICH HAVE BEEN BROUGHT TO FINAL GRADE AND HAVE BEEN SEEDED TO PROTECT THE SLOPES FROM RILL AND GULLY EROSION AND TO ALLOW SEED TO GERMINATE PROPERLY.MULCH (STRAW OR FIBER) WILL BE USED ON RELATIVELY FLAT AREAS AND WILL BE APPLIED AS A SECOND STEP IN THE SEEDING OPERATION. MANAGEMENT STBATFATFS 1. CONSTRUCTION WILL BE SEQUENCED SO THAT GRADING OPERATIONS CAN BEGIN AND END AS QUICKLY AS POSSIBLE. 2. SEDIMENT TRAPPING MEASURES WILL BE INSTALLED AS A FIRST STEP IN GRADING AND WILL IBE SEEDED AND MULCHED IMMEDIATELY FOLLOWING INSTALLATION. 3. TEMPORARY SEEDING OR OTHER STABILIZATION WILL FOLLOW IMMEDIATELY AFTER GRADING. 4. AREAS WHICH ARE NOT TO BE DISTURBED WILL BE CLEARLY MARKED BY FLAGS, SIGNS, ETC. 5. THE JOB SUPERINTENDENT SHALL BE (RESPONSIBLE FOR THE INSTALLATION AND MAINTENANCE OF ALL EROSION AND SEDIMENT CONTROL PRACTICES. 6. AFTER ACHIEVING ADEQUATE STABILIZiATION, THE TEMPORARY E &S CONTROLS WILL BE CLEANED UP AND REMOVED. PERMANENT STARTI T7ATTnN ALL AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH PERMANENT SEEDING IMMEDIATELY FOLLOWING FINISH GRAOING.SEEDING SHALL BE DONE WITH KENTUCKY 31 TALL FESCUE ACCORDING TO ,STD. & SPEC. 3.32, PERMANENT SEEDING, OF THE HANDBOOK. EROSION CONTROL BLANKETS WILL BE INSTALLED OVER FILL SLOPES WHICH HAVE BEEN BROUGHT TO FINAL GRADE AND HAVE BEEN SEEDED TO PROTECT THE SLOPES FROM RILL AND GULLY EROSION AND TO ALLOW SEED TO GERMINATE PROPERLY. MULCH (STRAW OR FIBER) WILL BIE USED ON RELATIVELY FLAT AREAS. IN ALL SEEDING (OPERATIONS, SEED, FERTILIZER AND LIME WILL BE APPLIED PRIOR TO MULCHING. STnRMWATER MANAAFMFNT CALCULATION OF RUNOFF BEFORE AND AFTER DEVELOPMENT INDICATES THAT THERE WILL BE A NET INCREASE IN PEAK RUNOFF AS A RESULT OF PROJECT DEVELOPMENT. CONSEQUENTLY, MANAGEMENT VOLUME AND OUTFLOW CONTROL IS PROVIDED IN THE OVERSIZED STORM DRAIN PIPES. IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAINFALL. THE FOLLOWING ITEfMS WILL BE CHECKED IN PARTICULAR: 1. THE GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP WHICH WILL PREVENT DRAINAGE. IF THE GRAVEL IS CLOGGED BY SEDIMENT „IT SHALL BE REMOVED AND CLEANED OR REPLACED. 2. THE SILT FENCE BARRIER WILL BE CHECKED REGULARLY FOR UNDERMINING OR DETERIORATION OF THE FABRIC. SEDIMENT SHALL BE REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHES HALF WAY TO THE TOP OF THE BARRIER. 3. THE SEEDED AREAS WILL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RE- SEEDED AS NEEDED. FRCISTCIN ANTI SFTITMFNT rnNTRCII I AW ANTI RFrlll ATTaNS 20111 4VAC50- 30 -40. MINIMUM STANDARDS AN EROSION AND SEDIMENT CONTROL PROGRAM ADOPTED BY A DISTRICT OR LOCALITY MUST BE CONSISTENT WITH THE FOLLOWING CRITERIA. TECHNIQUES AND METHODS: MS-L PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN STEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. MS -2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCKPILES AND BORROW AREAS SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING MEASURES.THE APPLICANT IS RESPONSIBLE FOR THE TEMPORARY PROTECTION AND PERMANENT STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS WELL AS BORROW AREAS AND SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE. MS -3.A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMA- NENTLY STABILIZED. PERMANENT VEGETATION SMALL NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT IS UNIFORM,MATURE ENOUGH TO SURVIVE AND WILL INHIBIT EROSION. MS -4. SEDIMENT BASINS AND TRAPS, PERIMETER DIKES, SEDIMENT BARRIERS AND OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP IN ANY LAND- DISTURBING ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. 7 8 9 10 11 MS -5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. MS -6. SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DESIGNED AND CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY THE TRAP OR BASIN. A. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA AND THE TRAP SHALL ONLY CONTROL DRAINAGE AREAS LESS THAN THREE ACRES. B. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED OF FLOW FROM DRAINAGE AREAS GREATER THAN OR EQUAL TO THREE ACRES SHALL BE CONTROLLED BY A SEDIMENT BASIN. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT BASIN SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA. THE OUTFALL SYSTEM SHALL, AT A MINIMUM, MAINTAIN THE STRUCTURAL INTEGRITY OF THE BASIN DURING A 25 -YEAR STORM OF 24 -HOUR DURATION. RUNOFF COEFFICIENTS USED IN RUNOFF CALCULATIONS SHALL CORRESPOND TO A BARE EARTH CONDITION OR THOSE CONDITIONS EXPECTED TO EXIST WHILE THE SEDIMENT BASIN IS UTILIZED. MS -7. CUT AND FILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION. SLOPES THAT ARE FOUND TO BE ERODING EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED WITH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED. MS -8. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME OR SLOPE DRAIN STRUCTURE. MS -9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED. MS-10.ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT SEDIMENT -LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT. MS- 11.BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS OR PIPES ARE MADE OPERATIONAL, ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN BOTH THE CONVEYANCE CHANNEL AND RECEIVING CHANNEL. MS -12. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE TAKEN TO MINIMIZE ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE DURING CONSTRUCTION. NONERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NONERODIBLE COVER MATERIALS. MS- 13.WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES MORE THAN TWICE IN ANY SIX -MONTH PERIOD,A TEMPORARY VEHICULAR STREAM CROSSING CONSTRUCTED OF NONERODIBLE MATERIAL SHALL BE PROVIDED. MS- 14.ALL APPLICABLE FEDERAL,STATE AND LOCAL REGULATIONS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET. MS- 15.THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED. MS-16. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION TO OTHER APPLICABLE CRITERIA: A. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME. B.EXCAVATEO MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES. C. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE.OR BOTH,AND DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING STREAMS OR OFF -SITE PROPERTY. O.MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE STABILIZATION. E.RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESE REGULATIONS.F.APPLICABLE SAFETY REGULATIONS SHALL BE COMPLIED WITH. MS -17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE,THE ROAD SURFACE SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTED TO A SEDIMENT CONTROL DISPOSAL AREA.STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. THIS PROVISION SHALL APPLY TO INDIVIDUAL DEVELOPMENT LOTS AS WELL AS TO LARGER LAND-DISTURBING ACTIVITIES. B/M Assembly Pipe Stand Foundation Cells (Pier) Pipe Stand Foundation Cells (Sproad)l Foundation Cells for Other Typioal Struotures (Pier) (Spread) 12 MS- 18.ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED,UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM AUTHORITY. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. MS-19. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE PROTECTED FROM SEDIMENT DEPOSITION, EROSION AND DAMAGE DUE TO INCREASES IN VOLUME, VELOCITY AND PEAK FLOW RATE OF STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM OF 24 -HOUR DURATION IN ACCORDANCE WITH THE FOLLOWING STANDARDS AND CRITERIA: A. CONCENTRATED STORMWATER RUNOFF LEAVING A DEVELOPMENT SITE SHALL BE DISCHARGED DIRECTLY INTO AN ADEQUATE NATURAL OR MAN -MADE RECEIVING CHANNEL, PIPE OR STORM SEWER SYSTEM. FOR THOSE SITES WHERE RUNOFF IS DISCHARGED INTO A PIPE OR PIPE SYSTEM, DOWNSTREAM STABILITY ANALYSES AT THE OUTFALL OF THE PIPE OR PIPE SYSTEM SHALL BE PERFORMED. B. ADEQUACY OF ALL CHANNELS AND PIPES SHALL BE VERIFIED IN THE FOLLOWING MANNER: (1) THE APPLICANT SHALL DEMONSTRATE THAT THE TOTAL DRAINAGE AREA TO THE POINT OF ANALYSIS WITHIN THE CHANNEL IS ONE HUNDRED TIMES GREATER THAN THE CONTRIBUTING DRAINAGE AREA OF THE PROJECT IN QUESTION; OR (2)(A)NATURAL CHANNELS SHALL BE ANALYZED BY THE USE OF A TWO -YEAR STORM TO VERIFY THAT STORMWATER WILL NOT OVERTOP CHANNEL BANKS NOR CAUSE EROSION OF CHANNEL BED OR BANKS. (B) ALL PREVIOUSLY CONSTRUCTED MAN -MADE CHANNELS SHALL BE ANALYZED BY THE USE OF A TEN -YEAR STORM TO VERIFY THAT STORMWATER WILL NOT OVERTOP ITS BANKS AND BY THE USE OF A TWO -YEAR STORM TO DEMONSTRATE THAT STORMWATER WILL NOT CAUSE EROSION OF CHANNEL BED OR BANKS; AND (C)PIPES AND STORM SEWER SYSTEMS SHALL BE ANALYZED BY THE USE OF A TEN -YEAR STORM TO VERIFY THAT STORMWATER WILL BE CONTAINED WITHIN THE PIPE OR SYSTEM. C. IF EXISTING NATURAL RECEIVING CHANNELS OR PREVIOUSLY CONSTRUCTED MAIN -MADE CHANNELS OR PIPES ARE NOT ADEQUATE, THE APPLICANT SHALL: (1) IMPROVE THE CHANNELS TO A CONDITION WHERE A TEN -YEAR STORM WILL NOT OVERTOP THE BANKS AND A TWO -YEAR STORM WILL NOT CAUSE EROSION TO THE CHANNEL BED OR BANKS; OR (2) IMPROVE THE PIPE OR PIPE SYSTEM TO A CONDITION WHERE THE TEN -YEAR STORM IS CONTAINED WITHIN THE APPURTENANCES ;(OR (3) DEVELOP A SITE DESIGN THAT WILL NOT CAUSE THE PRE-DEVELOPMENT PEAK RUNOFF RATE FROM A TWO -YEAR STORM TO INCREASE WHEN RUNOFF OUTFALLS INTO A NATURAL CHANNEL OR WILL NOT CAUSE THE PRE-DEVELOPMENT PEAK RUNOFF RATE FROM A TEN -YEAR STORM TO INCREIASE WHEN RUNOFF OUTFALLS INTO A MAN -MADE CHANNEL; OR (4) PROVIDE A COMBINATION OF CHANNEL IMPROVEMENT, STORMWATER DETiENTION OR OTHER MEASURES WHICH IS SATISFACTORY TO THE PLAN-APPROVING AUTHORITY TO PREVENT DOWNSTREAM EROSION. D. THE APPLICANT SHALL PROVIDE EVIDENCE OF PERMISSION TO MAKE THE IMPROVEMENTS. E. ALL HYDROLOGIC ANALYSES SHALL BE BASED ON THE EXISTING WATERSHED CHARACTERISTICS AND THE ULTIMATE DEVELOPMENT OF THE SUBJECT PROJECT. F. IF THE APPLICANT CHOOSES AN OPTION THAT INCLUDES STORMWATER DETENTION, HE SHALL OBTAIN APPROVAL FROM THE LOCALITY OF A PLAN FOR MAINTENANCE OF THE DETENTION FACILITIES. THE PLAN SHALL SET FORTH THE MAINTENANCE REQUIREMENTS OF THE FACILITY AND THE PERSON RESPONSIBLE FOR PERFORMING THE MAINTENANCE. G. OUTFALL FROM A DETENTION FACILITY SHALL BE DISCHARGED TO A RECEIVING CHANNEL, AND ENERGY DISSIPATORS SHALL BE PLACED AT THE OUTFALL OF ALL DETENTION FACILITIES AS NECESSARY TO PROVIDE A STABILIZED TRANSITION FROM THE FACILITY TO THE RECEIVING CHANNEL. H. ALL ON -SITE CHANNELS MUST BE VERIFIED TO BE ADEQUATE. I. INCREASED VOLUMES OF SHEET FLOWS THAT MAY CAUSE EROSION OR SEDIMENTATION ON ADJACENT PROPERTY SHALL BE DIVERTED TO A STABLE OUTLET, ADEQUATE CHANNEL, PIPE OR PIPE SYSTEM, OR TO A DETENTION FACILITY. REFERENCE SHEET NUMBER 3 OF 10 FOR EROSION & SEDIMENTATION CONTROL DETAILS. Steel Detail & Assembly Dominion° Professional Enc,. ineer Approval E� 'W/A 0 *D f� ili Inot _ y� oP P CHARL NE A. F) RRER Lic. No. 0360 9 tA J. IN APPLYING THESE STORMWATER MANAGEMENT CRITERIA, INDIVIDUAL LOTS OR PARCELS IN A RESIDENTIAL, COMMERCIAL OR INDUSTRIAL DEVELOPMENT SHALL NOT BE CONSIDERED TO BE SEPARATE DEVELOPMENT PROJECTS. INSTEAD, THE DEVELOPMENT, AS A WHOLE, SHALL BE CONSIDERED TO BE A SINGLE DEVELOPMENT PROJECT. HYDROLOGIC PARAMETERS THAT REFLECT THE ULTIMATE DEVELOPMENT CONDITION SHALL BE USED IN ALL ENGINEERING CALCULATIONS. K. ALL MEASURES USED TO PROTECT PROPERTIES AND WATERWAYS SHALL BE EMPLOYED IN A MANNER WHICH MINIMIZES IMPACTS ON THE PHYSICAL, CHEMICAL AND BIOLOGICAL INTEGRITY OF RIVERS, STREAMS AND OTHER WATERS OF THE STATE. 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE - CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625 -02 -00 EROSION AND SEDIMENT CONTROL REGULATIONS. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE SORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF- PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. IL ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER DEBRIS. 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13 -301 OF THE CODE OF ALBEMARLE. 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7 :00AM TO 9 :00PM. 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAN MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE 0 SLIDES, SINKING, OR COLLAPSE. 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS /ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS /100SF.ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS/1000SF', INCORPORATED INTO THE TOP 4 -6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT 1000LBS /ACRE AND CONSIST OF A 10 -20 -10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 180LBS /ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0 -5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 80LBS /100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED IMMEDIATELY. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED,SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. 21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WITHIN 1 YEAR OF THE DATE OF APPROVAL. (WATER PROTECTION ORDINANCE SECTION 17- 2040.) 22. PERMANENT VEGETATION SHALL BE INSTALLED ON ALL DENUDED AREAS WITHIN NINE (9) MONTHS AFTER THE DATE THE LAND DISTURBING ACTIVITY COMMENCED. (WATER PROTECTION ORDINANCE SECTION 17- 2076) mvhl _7 Dominion EROSION & SEDIMENT CONTROL NOTES, GENERAL NOTES AND NARRATIVE HOLLYMEAD SUBSTATION ALBEMARLE COUNTY VIRGINIA Name Date Project No. Sheet No. signed by: CAH 1/10/13 992310 xovals CAH 1/10/13 Scale 2 OF 10 rovals N.T.S Cad File Name 0600- 07$a.dg IPLOTTED. $$$* **$*$$$SYTIME 9�'i Revisions OMMOOM■ Drawing No. 0600 -078a W 2 a M M M M M M W 01o� W m� � a • 0 .9 . X i C3 o m U C3 Z U Revisions *USERNAME* m 1992 3.05 SF CONSTRUCTION OF A SILT .F'E'NCE (WITHOUT WIRE SUPPORT) 1. SET THE STAKES. 2. EXCAVATE A 47X 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES. 6' MAX. Iii► FLOW r r 3. STAPLE FILTER MATERIAL TO STAKES AND EXTEND IT INTO THE TRENCH. �- 4., 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. �jFLOW i SHEET FLOW INSTALLATION (PERSPECTIVE VIEW) t t �I1111 POINTS A SHOULD BE HIGHER THAN POINT B. DRAINAGEWAY INSTALLATION (FRONT ELEVATION) S Source: Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control, Sherwood and Wyant Plate 3.05 -2 Typical Drawing) Library Location Inf ormation n 1992 1 3 4 3,07 iP GRAVEL AND PrIRE MESH DROP INLET SEDIMENT FILTER RUNOFF INA WITH SEDIMI I W MIN. — /—� GRAVEL (t 2° MIN. DEPTH) �� 4 / IJ Li 1J P lll��l� t III A d P' a. SEDIMENT a WIRE MESH FILTERED WATER SPECIFIC APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE , HEAVY CONCENTRATED FLOWS ARE EXPECTED BUT NOT WHERE PONDINC AROUND THE STRUCTURE MIGHT CAUSE EXCESSIVE INCONVENIENCE OR DAMAGE TO ADJACENT STRUC`T`URE,$ AND UNPROTECTED, AREAS. GRAVEL SHALL BE VDO`T' #3, #357 OR #5 COARSE AGGRE(IATE. Source: Va. DSWC 1992 111-36 Plate 3.07;2 3,36. TYPICAL TRRATM -ENT - I (SOIL STABILIZATION BLANKET) a�M INS TA:LLA 'ION CRITERIA ANCHOR SLOT NOTES APPROXIMATELY 200 STAPLES REQUIRED PER _104 SQ. YDS. OF MAIERLAL ROi l., ANCHOR SLOTS. JUNCTION SLOTS CHECK SLOTS TO BE BURIED G' TO 12. I;r MAX. 4:1 OR (LATTER 6 MAX. STEEPER TFIAN 4:1 JUNCTION SLOT f "— EDGE AND ENDAOINTS, I,I I I I1 l i CHECK SLOT ; TO BE SNUGLY ABUTTEDNt - (JWE MESH %L.L iWE 1 I 1 TERMINAL. FOLD STAPLED tAP.Jglur IN LIEU OF EDGE JOINT) i LA i i 1 I t P JOINT 2' MIN. TAMP FIRMLY (JUTE MESH ONLY) I 1 I ANCHOR SLOT 5- MAX. 4;1 OR FLATTER 3` MAX. STEEPER THAN 4 ;1 1 I I t 2" 6" TO 1T I T1 11 1 1 I t I I I 1 1 1 I II i "CHECK SLOT t 1 l l t I I I I I I TAMP CHECK SLOT - 1" TO 2 I I I I (It I I t I FRMLY r" AR: -t- VAR, "1 (r T x W TO a• MIN. PLAN VIEW STAPLING DIAGRAM 'CHECK SLOTS AT MIN. STAPLE FORMED FROM NO.T_I STEEL MRE. 50, C--C INTERVALS; B "'STAPLE MIN. LENGTH FOR SANDY SOIL NOT REQ.'D WITM ALL G STAPLE MIN, LENGTH FOR OTHER -SOIL - COMBINATION "BLANKET$ JUNCTION SLOT "r— — TAMP RMLY TO 12 TERMINAL FOLD. 2. FI 12" — TAMP FIRMLY x Source: VDOT Road and Bridge Standards 111-362 Plate 3.36 -2 7 8 9 10 11 12 1992 3.18 OP PIPE OUTLET CONDITIONS A A 'IPE OUTLET TO FIAT REA WITH NO DEFINED :HANNEL L a 0 % d I�' f SECTION A —A FILTER CLOTH KEY IN 6 - -9 "; RECOMMENDED FOR ENTIRE PERIMETER 3do (MIN.) PIPE OUTLET TO WELL DEFINED CHANNEL PLAN VIEW L a j l 0 % d SECTION A —A FILTER CLOTH KEY IN W -9% RECOMMENDED FOR ENTIRE PERIMETER NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION BASKET, OR CONCRETE. 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED USING PLATES 3.16 -3 AND 3.18 -4. 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN 6 INCHES. Source: Va. DSWC Plate 3.18 -1 1992 3.38 Tp FENCING AND ARMORING DRIP LINE SNOW FENCE BOARD FENCE CORRECT METHODS OF TREE FENCING :NCE CORRECT TRUNK ARMORING ox TRIANGULAR BOARD FENCE Source: Va. DSWC TOTAL LAND DISTURBANCE = 17.633 S.F. Cell Name B/M Assembly Pipe Stand Foundation Cells (Pier) jPiPe Stand Foundation Cells (Spread)l Foundation Cells for Other Typical Structures Steel Detail & Assembly (Pier) (Spread) 111-401 Plate 3.38.2 s 00 00 c 'TABLE 3.31 -C T J TEMPORARY SEEDING PLANT MATERIALS, SEEDING RATES, AND DATES 1992 3.32 P C T"LE 3.32 -D J SITE SPECIFIC SEEDING MIX'T'URES FOR PIEDMONT AREA Total Lbs. Per Acre Minimum Care Lawn - Commercial Or Residential SEEDING RATE NORTHa SOUTH' 'Improved Perennial Ryegrass 0 -5% PLANT 0 -5% Higli- Maintenance Lawn 200 -250 tbs. - Kentucky 31 or Tura Type Tait Fescue 1000/0 General Slope (3i1 or less) - Kentucky 31 Fescue SPECIES - Red Top Grass 2 lbs. 3/1 511 8115 2115 54 911 CHARACTERISTICS 108 lbs. Acre loon ft- to to to to to to Use seasonal nurse. crop in accordance with seeding dates as stated below: February 16th through April . . . ...... . .. . Annual Rye May 1st through August 15th .....:........ . ...... 4/30 8/15 11/1 4 /30 9/1 11/15 Va. (May OATS 3 bu. (up to 100 lbs., 2 lies. X - - X - Use spring varieties (e.g., Noble). Avena saliva not less than 50 lbs.) PLOTTED: * * * * * * * * * * *5YTIME RYEJ 2 bu. (up to 110 lbs., 2.5 tbs. X X X - X Use for late fall seedings, winter Secale cereal e not less than 50 ibs.) cover. Tolerates cold and low moisture. GERMAN MLLLE'C SO, tbs. approx. l lb. - X - X - Warm - season annual, Dies at first Setarfa italica frost. May be added to summer mites. ANNUAL.RYEGRASS` 60 tbs. Ph lbs. X - X X - X May W added in mixes. Will Lolium multi•tlorum) mow out of most stands. WEEPING 15 tbs. 51h oz*. - X - - X - Warm - season perennial. May LOYEORASS bunch. Tolerates hot, dry slopes Bra rostis curvula and acid infertile soils May be added to mixes KOREAN 25 lbs. approx. t 1 X X X X - Warm season annual legume. LESPEDEZA` tbs. Tolerates acid soils. May be (Le3 eza sti ulacea added to mixes. a Northern. Piedmont and Mountain region. See Plates 3.22 -1 and 3.22 -2. b Southern Piedmont and Coastal. Plain, e May be used as a cover crop with spring seeding. d May be used as a cover crop with fall seeding. X May be planted between these dates, - May not be planted between these dates. 1992 3.32 P C T"LE 3.32 -D J SITE SPECIFIC SEEDING MIX'T'URES FOR PIEDMONT AREA Total Lbs. Per Acre Minimum Care Lawn - Commercial Or Residential 175 -200 lbs. - Kentucky 31 or Turf-Type Tall Fescue 95- 100% 'Improved Perennial Ryegrass 0 -5% - Kentucky Blue grass 0 -5% Higli- Maintenance Lawn 200 -250 tbs. - Kentucky 31 or Tura Type Tait Fescue 1000/0 General Slope (3i1 or less) - Kentucky 31 Fescue 128 tbs. - Red Top Grass 2 lbs. - Seasonal Nurse Crop * 20 lbs. Designed by 150 tbs. Low - Maintenance Slope (Steeper than 3 :1) 992310 - Kentucky 31 Fescue 108 lbs. - Red Top Grass 2 lbs. - Seasonal Nurse Crop`* 20 tbs. - Crownvetch "* 20 lbs. 150 tbs. Use seasonal nurse. crop in accordance with seeding dates as stated below: February 16th through April . . . ...... . .. . Annual Rye May 1st through August 15th .....:........ . ...... Foxtail Millet August 16th through. October .......... . ... Annual Rye November through'February 15th .......... Winter Rye * Substitute Sericea, lespedeza for Crownvetch east of Farmville, Va. (May through September use hulled Sericea, all other periods, use unhulled Sericea). If Flatpea is used in lieu of Crowavetch, increase rate to 30 lbs. /acre. All legume Seed rntlSt be properly L[lOClil'dted. Weeping L ovegraSs a ay be added to any Slope or low-maintenance mix during warmer seeding periods; add 10 -20 lbs. /acre in mixes. Dominion, Professional Engineer Approval �Q�� p►LT11 CH,ARL NE A Fl EiPER Lic. No._036 9 rn�, 111 - 303 N C rn -o a tr ED ED m CD m WDominion® EROSION & SEDIMENT CONTROL CONSTRUCTION DETAILS HOLLYMEAD SUBSTATION ALBEMARLE COUNTY, VIRGINIA Name Date Project No. Sheet No. M Designed by CAH 1/10/13 992310 3 OF 1 M « M 40 Approvals CAH 1/10/13 Scale Approvals N.T.S. B/M No. Revisions a w 0000 v tQ Cad File Name 0600079a,dgn (7{ Drawing No. 0 600 - 0 7 9 0 n° it PLOTTED: * * * * * * * * * * *5YTIME C rn -o a tr ED ED m CD m m' i X a cl J f CO Pipe Stand Foundation Cells (Spread) Q � 0o N �7 O Drawing No. I 0- I Z U PLOTTED: i•i,bt =tf3 =SYTIME Revisions 0 1 2 x x x x x x 3 4 5 7 8 9 10 11 12 SEQUENCE OF CONSTRUCTION 1. CONTACT ALBERMARLE PUBLIC WORKS AT 434 - 296 -5832 AND DOMINION POWER FOR PRE - CONSTRUCTION CONFERENCE AT A MINIMUM x x x x x OF 48 HOURS PRIOR TO BEGINNING SITE DISTURBANCE. MARK ALL UNDERGROUND UTILITIES PRIOR TO CONSTRUCTION. 2. INSTALL PERIMETER SILT FENCE AND INLET PROTECTION. x 3. BEGIN DEMOLITION AND SITE WORK. DO NOT REMOVE EXISTING INLET AND PIPE UNTIL PREPARED TO INSTALL MANHOLE 3. o roc= roc - 500.15 NOTE -°-- --- - ----- POWER POLE 500.09 EXISTING GRAVEL ACCESS ROAD AND SUBSTATION WILL FUNCTION AS VP NB98 x HOLL YMBAD SUBS TA TIOV roc= 8' CHAIN LINK FENCE THE STABLIZED CONSTRUCTION ENTRANCE. VIRGINIA ELECTRIC & POWER COMPANY rOC= 0 500' 11 x 8' CHAIN LINK FENCE PARCEL ID- 03200 -00 -00 -03700 500.10 O ROD & EROSION AND SEDIMENTATION CONTROL LEGEND - VIRGINIA o/H ELECTRIC -�1 ° - _ _ _ DB. 728, PG. 100 Z CAP SET t NO. KEY SYMBOL TITLE QTY (TYPICAL) j `- -- -- ZONED: R- ----- - R -1 ------------------ ------ - - - - -- - ---------__- Wa __ __-- --------------------- - - - - -- `` t i , op \ o 3.05 X X X- SILT FENCE 265 LF FENCE - _ _ GATE EQUIPMENT ACCESS PATH Z h +kgg _ GUY ANCHOR - _ _ _ _ POWER POLE_ PICAL - _ ____ _______ __ ___________ __ ----- - - - - -- ------------------------------------ o° ` \ 3.07 IP STORM DRAIN INLET 2 EA F ) ` '` caBLE - Q Z `� �..- PROTECTION t VP N897- \: _ - - - i TROUGH TOC= TOC= .__._ _ 0 O 499.56 ° °` ��` ,,,,.• •�. °'� 3.18 OUTLET PROTECTION 1 EA O 499 6 I , ° OP � O f HOUSE t POST t ' " Y �i i\�LIMITS - i' i t TOC= ° . x t roc= r ' roc= Toc= x , ►GRAVEL TS •• Ts W. TEMPORARY SEEDING F.F. EL.1� 499.05 I ° • 3.31 PO R POLE ;i ; y iI i i _ _ 499.59 i 499.80,E 499.07 G R A V E L 499.40 �� , i I Q� 'Top,. • ° SOS., 7/ VP N974 /61 :i , t , i ` i I I N C01.° , °' °. -. / , ' : t ; ,I , , !-�- -�- L ` ' W 0/ ° • ° • ° 3.38 TP TREE PRESERVATION 41 LF _ _ o roc= �� I I cTOR TP AND PROTECTION / - TELEPHONE t 498.57 ( ° 0� 't PEDESTAL ► 0 TOC= t , i • ° • ®. , GO �}• ® . !•. / , ', , , S roc= 98 6 - TOC= O O Toc= , I I N° l POWER, - POLE'S t �g 6 4 o roc- 498 58 498 57 t ' ..�'' • ��• •. •' LOD LIMITS OF DISTURBANCE 17,633 S.F. f 498. 2 O O O 498.63 O ' x .° - -- - -- ° -( 11,4' N866 7 \i - - - - OVERHEAD' _ x _ Ef/EC. GOES U, /G% i i \; `� �� TOC= - - -- -._ FLIGHT i _ •�',"• �f .' / �\r �� v TOC= 498.62 TOC= TOC= TOC= TOC= ' • r i I °' ° • I PTO ++ �� 498.39 O O 498.59 497.99 �O 498.61 O 498.60 'r. I_ I W O�w ° ROD & ROD & . -�' t i ' ✓' i �N SUBSTATION BASELINE 498.59 CAP SET CAP SEr� ' t i j ,.•'� j o ° i A . °•� + % t S73'04'48 "E �. 80.00' Toc= TOC= 80, 00 = , NOTES: ROD & �49778� T --------- - - - - -- -- O 4OC= O roc- , I CAP SET 497 77 _ 97 -._31 _ 497.30 . �, , .• ' x ' roc= Toc- 497 �1 roc- 11P ROX114A -L06ATION 1. HORIZONTAL DATUM IS BASED ON NAD 83 (VIRGINIA SOUTH ZONE). GUY ANCHOR_1 l :- f t ` G R A V E L TOC= O O 4�97.29� ® ®•'~ • t t /..,, GR ING MAT (TYPICAL) / '' '� `� ° ° 497131 O 497.31 497.29 • ° . W 2. VERTICAL DATUM IS BASED UPON A BRASS DISC STAMPED 'VA. POWER'; ` INTERSECTION _ _ .FOUND IN THE NORTHWEST CORNER OF A TRANSFORMER PAD MARKED N : 3934015.8 O TOC= 0 Toc'- 497 28 0 X 407.29 SSTRUCTURE J t t I WITH AN ELEVATION OF 499.07. BENCHMARK 1 TOC= • • 497.J2 497.30 9 - - - - J-,' I Q ,i 49750, � ° °° E.•11501952.40 �2054/5831 -�_.r -X_ 8' CHAINLI�1K�e , tLIM�TS OF ----- - - - - -- - - - -' .,�•''• I TO REMAIN e I J. CONTOUR INTERVAL = 1 FOOT. GRAVEL _ . roc- Toc- roc- roc- I g6" -100 4. PROPERTY ADDRESS.- 3317 WORTH CROSSING. i M 1 X -E D I - -- -- E 497.46 °`° 497.31 Q4973I 497.280 497.30 '° �� i� j -{-�' I / w o ,o D s i t ' W ° . ROD & 5. EX /STING SITE ZONING IS R -1 (ALBEMARLE COUNTY G/S). % \ - 8' CHAINL�NK ' I° ° CAP SET , TO REMAIN '�- -- -- E - - -� roc= __________ _______________________________ �' t f I_ 6. GROUND SPOT ELEVATIONS INSIDE THE SUBSTATION FENCE WERE TAKEN ' x 49! .49 REMOVE 8' •' x i AT DIRT GRADE. REMOVE 8 EQUIPMENT A�,CESS PATH CHAINLINK CHAINLINK FENCE ' - _ FENCE ,, t I 7. NOT ALL SUBSTATION COMPONENTS SHOWN. r i I 8' _ ----------- i ti r-- CHAIN LINK FENCE \ 4 t p . OD- -------------- ` -------------- LO !" 8. THIS SITE IS LOCATED IN ZONE X (AREAS DETERMINED TO BE OUTS /DE p \. { t c I�i�i`-l�-f-f I�-X �i�-f /��X � �i f i�'- -f= l�-/�iL�/XI`/Li�i�i�I�IiC f°f- �-i�- i�/ I�f- f-i`-i�iC ic- i�-/`- i�-lLiiiYi�-lf-iLI�- ILi`-IG-:�C /_/_I1-1_/- 1011_1 c-/L/�IcI�Ic- ' t I g t THE 0.29 ANNUAL CHANCE FLOODPLAIN) PER THE FEDERAL EMERGENCY 4' TREE t '' EDGE OF'- + V I t MANAGEMENT AGENCY FEMA , FLOOD INSURANCE RATE MAP PANEL -7--� ®GM - - -g - - - - -�M ��,� „I-� -- °" = - - -GM - - - - -- °�-�M ----------- - - - - -- -_ ------ - - --GM -- - j• j ( ) 12" TREE IP STORM GRATE 8 TREE 8>' TREE , ' t 51003CO145D, EFFECTIVE DATE.- FEBRUARY 4, 2005. L':.492.62 � REMOVE EDGE OF \ �` ► -------------------- --- -- ------------QEMQILE_____ -- _ -- :=�} V�E __ -- _----------- ____ -- -- REMOVE .' WOODS DEL: - - - --------------- 9. AVERAGE DEPTH OF GRAVEL IN SUBSTATION SITE IS 4 . \ TS 486,48 �, / 12" TREE : ° r•,,_._. � LIMITS OF - .' - - • _ _ . _ - - - - - - - - � - •j " " " " 10. UNDERGROUND UTILITIES ARE NOT SHOWN. CONTRACTOR SHALL VERIFY -A 6 REMOVE 12" RCP GQ �� -_ ,� REMOVE GRAVEL ...... _ . _ _ _ _ LOCATION OF ALL UNDERGROUND UTILITIES PRIOR TO \.._.- g , , / T a . _ - -- - ' P TYPE AND L / ` '*� �' "- - --.. / °- q g5 ANY CONSTRUCT /ON. --------------- ----- -- - - g�----------==-=== = - - -r- _...._.:` 11. WORK PERFORMED BY BURGESS & NIPLE, INC. NOVEMBER 2, ,• % ,'' ,•' _ - •_ .__ - - -- - -- \ \\ �-- ,`�- �- �----------------- - - - - -- - - - -- FIELD EL TRt�r ' �\-\\��\� _ _. + 2012. / \ TRA/ SFF>�Ra4ER ==- \` \ \` \ \\ . \\\ \ \\ \ O . \ \ \ - - - - - - - T \ \� \ \ \ \ \`�� _ ... \ \ \ 12. PROPERTY LINES SHOWN HEREON ARE BASED UPON FIELD FOUND k g �_ SF \� \\ \N \ \y� 'IN 'EI, � .,, MONUMENTATION, REFERENCED DEES AND PLATS �g ® \ \_ \� ^ \. ,J 4_.1. _ SF , - STAL _ F _ _ _ _ _ _ _ _ _ _ _ _ _ a -_ _ _ - 13. APPROXIMATE UNDERGROUND UTILITIES LOCATED PER ACCUMARK DATED o / $F TP . 03 13 13 EDGE OF WOODS �' Y2007 ` 'CRITICAL SLOPES_ _ 025/) -. e ��\ \ RE) BEMARLE COUNTY G.I:S:--__- / Y2007,'CRIT AL SLOPES- -( >25x) \ \_,\_N�:�s `.... Fd. k�5 / :REF ALBEMARLE ,COUNTY G.I.S. CENTERLINE , ., �. �•� "`- / RlP- RAP �IrCH�,' I LEGEND.- 90 PROPERTY LINE BASELINE j M �'X E.'D CENTER LINE . r ,, O/H OVERHEAD WOODS,` / -� -�- j� --""" ® C� \� \ / ►; O ` EDGE OF- � D- S BENCHMARKS: - - 't t '`, - ��.� \- \�, `� R/W .- RIGHT-OF-WAY - •ADJUST SILT FENCE -.TO AVOID +� _WOODS EXISTING .ELECTRICAL LINE -AS TOC = TOP OF CONCRETE ELEVATION / TEL'EPHfy��NE t BRASS DISC STAMPED "VA. POWER / PEDTSTAL ►01'� / ►. i' i 1' � 0, '�. ��_ -M DED. CONTACT ENGINEER 1 F.F. - FINISHED FLOOR ELEVATION J' l S •Q5 - -� - �_.- >> �� IF TER THAN "2-ADJUSTMENT NORTHWEST CORNER OF TRANSFORMER PAD - / N 09/ `' a sr NEED = U/G - UNDERGROUND `ROD Fd. tr- -120 ,� RIP-RAP �RAPF ,�� S 63j >iq N ELEVATION 499.07 „� RCP = REINFORCED CONCRETE PIPE 10' DR�NAGE,,EASEMENT t' t1 ) e st99;,`F`\:' �52��° 489 DIP - DUCT /LE IRON PIPE / �7. B. 728 : PG. 100 �, t' 2 - / �t ,,., , _ - • - - - - - - - • e e -�, � +• `� T.B.M. SPIKE NAIL SET IN POST r - - - - - `� INV INVERT - _ - _ r - - - _ - 2 - \ \ '� °�° ELEVATION = 500.37 'y =SPOT ELEVATION (AT DIRT GRADE) INV. EL I - Hdl/_.EL. 475.01 475. 14 I °° �' �° / . ` ` �. Dominion° \Mi /- ] �y' ' \ -`• � ,\" `` Professional En inaar / � � • - -/ ° ` �` Approval Dom�n�on • tk / ��t` TOP OF WATER \ '�, °� EL. 473.0 �, qCT ��,; ��.� EXISTING CONDITIONS & PHASE I Fd. L x T crF 48 �, p�ff��ALTFi p 7!l - ° -''- (BENT) k:� /NV. EL. 5 °off fill EROSION & SEDIMENT CONTROL PLAN 473.97 FOREST LAKES COMMUNITY ASSOCIATION, INC. +� , - _- �� H O L L Y M E A D SUBSTATION INV. EL. PARCEL ID: 04684- DO- 00 -000AD o 473.92 D. B. 1304 PG. 346 AFryNEA.H�aY ALBEMARLE COUNTY, VIRGINIA ROD Fd. EDGE OF - (BENT) Lie, No..0361 Name Date Project No. Sheet No. ZONED: R- 1 WATER ° r Designed by CAH 1/10/13 992310 WOODS s} Approvals CAH 1/10/13 Sc ale 4 OF 1 EDGE OF 20 0 20 40 /N j� SF�NAL E� Approvals 1 _20 ' WATER ,�i /�� +b�� B/M No. Revisions sca I e feet V1 0000 Typical Drawing Information Library Looation Cell Name B/M Assembly Pipe Stand Foundation Cells (Pier) Pipe Stand Foundation Cells (Spread) Foundation Cells for Other Typioal Struotures Steel Detail & Assembly Cad File Name 0600080a.dgn Drawing No. I I I (Pier) (Spread) PLOTTED: i•i,bt =tf3 =SYTIME W 2 F- cn N N N N N N N N N W W t- t- �O .a d • • 1 3 5 7 8 9 10 11 12 x x x x x x x x x x x TOC= - ®- -- ---- POWER POLE o 500.09 Ij VP NB98 x // Y S T n VIRGINIA ELECTRIC & POWER COMPANY roc= 8' CHAIN LINK FENCE PARCEL ID: 03200 -00 -00 -03700 500.10 \ f 0/H ELECTRIC- ` ' - _ _ DB. 728, PG. 100 (TYPICAL) j ZONED. R -1 . GUY ANCHOR - - - _ _ _ _ _ UIPMENT ACCESS PATH E(rYPICAL) --------------- POWER POLE° ... i _ - -�\ , ----- - - - - -- VP NB97 - nn o o �� CONTRO ; - I -- -- f1HOUSE - - -- roc= • _, - � 3S0H x TOC !0F N��,i 499.05 PO R POL�1' ;i ' �' �I ; 49 .59 4 0, VP ,%� TELEPHONE �I : ; f3EDESTAL a TOC= LvPOWER, . POLE `� `\ +�9 - - - 8.62 =� VP NB66 7 \i' x a,. -- 420C GOES U, V i 1\ ' _ - _ _ / ' �\ TOC= 498.39 5 / l S TA BASEUN roc= - - -- 5�2• •� Lu.•'• - ,•i• 498.59 i` 411 x S73'o4'48"E ,\ D & 0.00' / / i `\ SET GUY ANCHOR l I cp \ = .- t ` R A V L (TYPICAL) 497.31 i 4 } ^ TERSECTIO roc= o ; 97.50 4 1501952.4 dam' �LIM4TS OF =I}f, -- -_ ---- - - - - -- M I X - E D (0 ORAVEL _ _ - _ - TOC= TO t, W - - 497.46 4 i WOODS \ i I' TO - -- E ---C= To - f I fj x \ 3.94+' GRAVEIL OUTr�� IDE vt \, QF _,FENCE 0 - - -- - - h PROPOSED \ i i + i i GRAVEL - GP - -- - - -- -GM - - - -- - -- --• ° - - -- o \ \ % ' �- ® 72" TREE EDGE OF D M \ \\ \\ ;.. - - . -.:.. -. -.: ,- - - - -� -.. - . -. -.: -.-. -. - - - -. -.: - - . -. -.: -.- - - .- .- .:.. -.- WQODS; . .......•.•.•.'. •Lri.•... ...'. ...'...' ....................... .............. - \ \ 6:...... ........ �:. d ........ ............................... 3 .. ar •a:=ri i:.•�iriai JJ= •�raa= _:_•.: _aaf �:_8a.. a::_•.raaa a• :: a - :.~ y1.a -- 'aaauy�.•.: •aff:::.:,.asitTi. GRAS ED S� ALE �- \ �- -__ - ____ � _ -- __ -�UU - -- _ - �= _�2 =�-►~® -��= - -_ \ TRA tr1- \ BOT 3Z:1. • 493 494 &yk �a 7 - PEDES -�@ ol CENTERLINE iCg RIP- RAP - DITCH % M •'l X E D "W 0 `�� / o_ + (k8 , TEL'EPHNE , ,, % / -�' �" I 1 I Y / PEDF/STAL +01 is 1 I U / / , i r Nga,050g/ ' ' 1 / oIMITS ^ OF \ w a / / ,� -; 125. �+� = o_ 0- / 10' DRNAGE.' EASEMENT N a W F" Ar9 B. 728 ; PG. 100 � NQf U a:OU r / / h�i •�, INV. EL. j -.//VV ..EL, , z / -"� �j� 475.14 - 1475.01 , U J /// �,�- / 12' DIP ' [2J CY) U WMZ , m U) J W i -� ''ROD' a �o� �- / � 4,� -''� - (BENTS/ ��5�.�.%' INV. EL. U o Na�•'18' ��°/ +�'' fj'� 473.97 m i C n . °'' 59.8 ,,� ,' ,� Q. �' / INV. EL. a a z °° �'. / / , ' //, ''r/ 473.92 q m m /� EDGE OF' O e m o Q WOODS o c z U / ! EDGE OF Revisions / WATER / ,'�v Typical Drawing Library Location Cell Name B/M Assembly Pipe Stand Foundation Cells (Pier) Pipe Stand Foundation Cells *USERNAME* I n f or-motion SEQUENCE OF CONSTRUCTION x 1. COMPLETE SITEWORK OPERATIONS. 2. INSTALL PERMANENT STABLIZATION. x 3. WITH APPROVAL OF VIRGINIA DOMINION POWER AND ALBEMARLE COUNTY, REMOVE EROSION AND SEDIMENT CONTROLS. NOTE EXISTING GRAVEL ACCESS ROAD AND SUBSTATION WILL FUNCTION AS 8' CHAIN LINK FENCE THE STABLIZED CONSTRUCTION ENTRANCE. CONTRACTOR SHALL x INSTALL ADDITIONAL CLEAN STONE TO A TOTAL 0174" WHERE EVIDENCE OF SOIL IS SHOWING IN THE YARD. 00, 1�3\ o i . x i i EROSION AND SEDIMENTATION CONTROL LEGEND - VIRGINIA . e , ,. • � -- N0. KEY SYMBOL TITLE QTY ° • ° 3.05 SF X X X- SILT FENCE 265 LF W 01H STORM DRAIN INLET 2 EA voTOR ®•''' , ' 3.07 IP PROTECTION i S N oONO TOC= I , 498.57 ; x ; -�' ��' ° -''' ° 0 SOIL STABILIZATION 0VERHEA 91 i - i • .• -o - ° 3.36 4 OR �. ,® M BLANKETS &MATTING 500 SF LIGHT i ' . ° • TRT.1 TRT.2 o NO 0 ..... w o0 TREE PRESERVATION 41 LF 0.1H, 3.38 TP TP AND PROTECTION !,9 13 - %' 1 ,.k�' ° LOD LIMITS OF DISTURBANCE 17,633 S.F oo W i i T LEGEND - #20541 GRASSED SWALE SYMBOL DESCRIPTION i� O ik9 O 21A COMPACTED GRAVEL ; s CAUTION = j0VERHT� *57 STONE UNCOMPACTED GRAVEL X I SINES IN WORK�/ARREA I I W >J 49 Y VYY Y Y N Y Y Y 7-4 UV 1 .7L.V I FJ 'OSED EDGE OF -- ------- - WOODS ;E- •PROPOSED WALL - -- \ B/M \�\ • _EXISTOG� - TREELINE r ° `• - -•.. �,, TO- BE, SAVED'- 8r° -490 .`, .� • M I X E, D EDGE OF- WOODS ,`� -�•• \ � \ � D.B. 1304 PG. 546 ZONED: R -1 Foundation Cells for Other Typical Structures Steel Detail & Assembly (Pier) (Spread) DRAINAGE DESCRIPTIONS VDOT DI -5 REQ'D. TOP - 493.90', INV. (OUT) - 488.90' O 35 L.F. 36" PIPE REQ'D. INV. (IN) - 488.90' INV. (OUT) - 488.50' Q 9.54 V.F. MH -1 MANHOLE REQ'D. TOP - 494.14' INV. (IN) FROM 2 - 488.50' INV. (IN) FROM 6 - 488.50' INV. (OUT) - 484.60' 9" ORIFICE PLATE AT UPPER INVERT FOR 12" PIPE ST'D.IS- 1INLET SHAPING REQ'D. VDOT DI -5 REQ'D. TOP - 493.90' INV. (OUT) - 488.90' 82 L.F. 36" PIPE REQ'D. INV. (IN) - 488.90' INV. (OUT) - 488.50' O7 12 L.F. 12" PIPE REQ'D. INV. (IN) - 484.60' INV. (OUT) - 484.11' 20 0 20 40 scale feet Dominion, \ � Profassionol Engineer ,G/ Approval Dom i n i o � SITE, GRADING, AND DRAINAGE PLAN & tALTx 0 �0� PHASE II EROSION & SEDIMENT CONTROL PLAN HOLLYMEAD SUBSTATION ALBEMARLE COUNTY, VIRGINIA RLEi ' A. H PER Name Date Project No. Sheet No. � Lic. No. 0360 Designed by: CAH 1/10/13 992310 Approvals CAH 1/10/13 Scale b OF 10 Approvals 1' =20 B/M No. Revisions •��sses 0000 Cad File Name 0600081a.dgn Drawing No. PLOTTED: ** * * * * * ** * *SYTIME 0600-081 R 0-; t- r N N N N N N N N �Mw �0L -aaa..M C rn -U 00 m ED m (D M m' o o E a 4 Z CO x a +� o Y e m 0 O -C a Z U Revisions •USERNAMEA NOTES: 1. EXISTING TREE CANOPY COVER EXCEEDS 10X. 2. EXISTING TREES ARE ADEQUATETO MEET SCREENING REQUI EMEN�T x x 0 1 2 3 4 x x- E 09 7 8 -x x 9 x x 10 11 12 EROSION AND SEDIMENTATION CONTROL LEGEND - VIRGINIA NO. KEY SYMBOL TITLE QTY 3.05 SF X X X- SILT FENCE 265 LF STORM 0/ oc= 3.07 IP PROTECTIONN INLET 2 EA roc= 500. 15 •-• - ---- POWER POLE 500.09 3.32 r 1 PERMANENT SEEDING 5,709 S.F. _ -__ -_ # VP N898 x HOLL YMEAD SUBSTATION roc= 8' CHAIN LINK FENCE PS � VIRGINIA ELECTRIC & POWER COMPANY roc= O 500.111 x 4 8' CHAIN LINK FENCE 500.10 �a - PARCEL ID: 03200 -00 -00 -03700 ROD & B 4 OR SOIL STABILIZATION O H ELECTRIC DB. 728, PG. 700 CAP SET i tro 3.36 TRT.I BLANKETS & MATTING 500 SF / (TYPICAL) j - ` -` _ -- - - - -- ZONED.' R -7 ------- - - - - -- ----- -------------------------------- _ TRT.2 FENCE 99 k i TP TP TREE PRESERVATION 41 LF GATE EQUIPMENT ACCESS PATH Z tt)f +� .\ x 3.38 I O AND PROTECTION GUY ANCHOR POWER POLE- (TYPICAL) ` i - r --------------- - - - - -- - - - -- ------ - - - - -- ----------------- - - - - -- �\\ i. 7 ,�� ®`�"- _ I `` i TROUGH - roc= O roc= `. l ° �.-- ,,.• LOD LIMITS OF DISTURBANCE 17,633 S. F. VP NB97' \ 499.60 499.5 • `� - •" y i�T7 6 IC I,1 - - - - - -- • - -••- _ ` • r •-- •- •• - -••_r HOUS 1 - - - - -- 0"I > �;'; POST I _ - I /1 TOC= I LlM /TS ,' , I i I , . x GRAVEL A� EXISTING TREE TO BE REMOVED r roc= 1 "1 I x I I TOC= I F.F, EL./1 499.05 TOC= \� i R \ I 1 1 499.59 1 499.07 G R A V E L 499.40 I I CTQ�- . S P! POLE + I I I 499.80 t p•® , 7 VP NB74 ,P% ' I ' ' p `� ` I N , %ON U . �' ° .\ I 1 1 QO rTOC= \,1 II I ( • •-''' UCTO, ' • ° loo / rELEPHONE I t t W 498.57 ' 1 i t , •' OOrlp° �� ; � PEDESTAL 1 tt tt 8 � TOC= � TOC= _ TOC= `r TOC= t 1 t 1 , , '� N.,, • ° . ,,, • ° , 1 +k9 0498.60 498 498.58 O O O 498 57 I ' I 0�, / /• ' POWER..POLE ____._--498.62 O 1 %'i . °. • .---- _...-•••- -• -___-• - I t _ t x °r VP NB6'6 %�\ �� ,_ •• -•• _• - -•• 0VERHEA� ELEC. GOES U/, C/ I `� _ '' - 1 _ \ 98 6 1rOC TOC 1 ° t O O TOC= - = O = r ° TOC 1 498.39 ❑ 498.59 497.99 0 498.61 498.60 ;,� �. _ ' I ° • pf�w ° ° `. TOC- ROD & ROD & i 0�� • . SUBSTATION B�4SELINE 498.59 1- CAP SET CAP SETS ' , +5 / I S73.04'48'L< �� 80.00' O TOC= = 80. QO' _ (' TOG= ' A , ° • ° �GoOnty of Albemarle 1 ROD & O TOC= • -____ ••• - -• 049731 I ,,. X - - - - - - - - - 49-7 7 497 77 _ 30 , !� " I • altdsca a Plains. S 497. CortserVabt►.rr k?lstn Care kllsl -To be paced ctrl L p / / : �\ �\ CAP SET TOC= 0 O TOC= - O 49 = �' 1 °','," k, g 1 1497 N1' s'otttpleEe 'cations) specii TOC I all -x4 -/ I OC TOC 7 31 TOG • °' I i • �. (Titan ibuo P GUY ANCJ.IOR / �` G R A V E L 7 37 497.37 497.29 497.29 O (-TYPICAL) I �� 49 •'' • I I I ; °,' I. fltrrCulldwfiig Itura r's6ai11ie IrUtiva un the Whin: / / I + � - ku br. saved, `� \ INTERSEC77ON O TOC= O TOC= TOC= O O TOC= SACKBONE,, 1 °4 ° , t W' limits of elcaring,(qutside dripttnt gf trees to he staved);; / I TOC= N. 3934015.8 497.32 49728 ' - _ �" n and t e fro ec ve en x £.•11501952.40 49730 49729 STRUCTURE �� X I E 4oaati r yp o p t ti f 14111 1l 497.50 `� . #20541583 • y �',� ° i \ Gxade ha ages rerlulring lrge wells r?r w Is; / I ' P o osed tretrch tf or tunneling beyond llrc limits of clearing. r LIMITS OF -� • • O - _ _ - _ ,. S p >- y GRAVEL - roc- roc- roc- roc- - g6'� O O O O . .1'' •' /� r I �', : Oa 141ttrkin s: M ! X E D TOC- • `` ° ° ` 497.31 497.31 497.28 497.30 , . . %, - .. I } : NaEE; 7R, hf 87 f7/Ottts ANP 497.46 1 ° ° - °� ° ,� / ► £111 Irc4s to be siived. shall be marked,with print or ti�bon "at:a height clearly visible to e,quipmertt operat4rs.� G it , f 1 5�h T / W O ,O D S I ROD & - ' . - - r / t i Y I . G'XIS71f�� I CAP SET ,'' IVu grtttllttg'shall begin art l the tree mtrrking has been luspectcd and approved by a County inspector. voD l TOC= _ . _ I x 497.49 ` • ` - - ' - - _ ° - - - .: , • •. _ ' - i / I 3. F're:Gonst uchon conterehee: ' ! EQUIPMENT ACCESS r / I enervation an protectio n measures:shaU be it viewed =with tite contractor on site: Tree pK • - / a . �:1 a ]l1{ellt.i2 1 rntld" and JtOri1 e: - - - -- - - - - -- -- r+------- - - - -_- - -- ------ - - - - -- - hallo permitted 'witlir tiedri lines of trees I�0 Oar-- -LO . _ • - - _ _ . - t[ti,tvy, kijulpntGlt, v�ttict;htr_ICtil'Iicand storage okennstructon materials including sgtl,s not be i t E drip t a p -•---•--------- •------- -------- - - -• -- 496 0 k be saved 4 TREE l 1 Erosion and Stormwater Detention Devices A ---- A l ; / g .._..� i �'ttc h.doulccs shalt out it, dvvrscly allcct treys to be saved. g� ._.. j -- A�i V 8' TREE �'' ``° -- --•- --- -- �` 12 " TREE AA 8' TREE',aS G R� ires. I _._ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ O O ,' ; Clres a_re not permitted within I UQ feet of the dripline of trees to be saved, EDGE OF _ �� WOODS ; i.' ...................................................................... ............................... ,° ..... . .. .................... ..................................................... ............................... ................ .................... ..... ................................................................... ............................... ................. 7. lox elYiSter�aly: ..................... ............................... ................ ............................... ................ ................. .............. ....�JM >TS..'OF................ TYPICAL.. ... ... .. :.... ...- -- A • • • • IAA 1 aiti4 ixiatariats sliali not be stied vrithin 100 feat of the drpline of trees to be saved. ...... .... ................... :...: - ...._... -_ 8. S'rutaetivc F, Wean s ........._ ................. .. . ......................... .. .... . . 5 .. ............................... �, - _: ,- - - - - �9 lr�es Ittb4 r�ttrfitccl Iviltun.40 feek "of a. ro osed buildip or' radin activit .shall be rotected:by fencing. :.:,_- . •IF'' s P g ..... ........... ....... _ - _ ..... _.. .. ........ .... .....: a ...... _ ........- _ • .. .. .. _ ter.-.' J I•• _ /1. �I _ _ _ m t tie rid slral be I s e� t d and a roved b a Cdun{� Iris ectar }riot to grading or construction. , . L• Li.ifJ..n.t LL iJJl••.LLiti J ....L LiiJJ....1Ltii JJ-••LLLii J•- -LLLii JJ... LLiiJJ .•.•-iiiJJ..-- •LLiiJ- -..Lttii J-.. •L iiJJl--- iLiiJJ- .- .Ltt�i J-- ..LLLLJ J.r•w.1 }i .•.iiii J..._ Liij1�,� .•Liii J.� _1LLiJJJ...41. - _ LLii J..- -.LLti J. ,'•� �- ��': 1�nl.itll, shall �... it plat. n, -p.,, t pp -_... y iJ P ,j!. _: fS:.. q.... EL TRIC _ - - - - -- --- - - - - -- ---• ------ - - - - =- -� --- - -��_� 4 TRA SFORMER - = _ _ - - - - -_- - - - -, _ -_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _-- - _ - - __- - _ _ _ _ _ _ _ _ _ _._,- _ _ _ _ _ _ _ - _ • _ r W1ien !Fie rousktl level most be raised rvithiia the dr line of n treeao be saved; a,tree well shall he provided and a construction detail _ -�. � _ - _ _ _ T g P P �•�"'� -__ 494 -� ---- - - - - -- - - - - -- - - - - - - -- --�� - -- - - - -- 494 submitfedforfapproval` 3 - &S� Gj!Z • ... _ Tree q@ allsi - -4 k - 9 SF _ - - _ _ _ . _ . !, SF `' wall shall be rovided and a construction detail PEDESTAL / �< "'` V�het %lire ground leycl ntust be (Uwered yvlthln the dripline(a tree to he saved, tree ;a , - _ IO ft ,I �' `\ SF � .. P . J • -' TP �1�� snbrnittedfor approval /"s" 1 �w t I. Trenehio and Tt inello . t • /_ EDGE OF %T / J• / -� \ - WOODS - - • _ - _ , , �. _ _ 1 `� � _ � When,:frenching is required within the,limits of clearing, it shall be done as fat away, from the trunks oftrees as pussibte.'1`ustneling v: ROD Fd. -�A. '' • • .. "`� v: ' - • . • B/M � --•.. - _ ` ` iindnr a tarp, tree �shatl be considered a "s, an alternative i�helt''tt is anticipated tlr�t necessary trenctun will destro� `feeder roots. G�/ / CENTERLINE pr9 / R/ - �,� EXISTING � �FREELINE P RAP•DITCH , , / � •/. , °- �� '� ,,,vim 6 '- 490 Prokective fencjng shall be the last"items removed during khg final cleanup. ' •/ / � % �' �', a d'1 � reeK 1. l / �/ / ✓ ''�� 8 =�. \. Ua nui `ed krees'`shatl, be frented iriimediatet b ruining, fertilization -or other mcthods;Kecomineaded by "a tree sit cialisti / \ NOTE.,t'R' R�7HC Di:YELOt?ERt RiE.SP ®NSIR3ILiT1( ROCONF Rt VqH j, GoN'1'I2A�'Itll> �JN °t'ItLi; COtVSEItYAI'IOP1 M,'I X E''D // / � �. \� M l X E D' RCtPU[�tEli�1ENTS, 9 6 / ° / ° ► I: I ® EDGE OF• WOODS �, \ / + / TEL'EPH/� NEB / PED/ STAL 4, / . - 'LIMITS ® \. ",ROD Fd. o'' • 1� RAPF ` RtE rR:) / t • _ _ . _ 1 ?3�9? ` °` ,. , 5//06 Pagel of 1 / 70 DR WAGE.' EASEMENT � ��.�' _ � v � CON1 R�#CT PU�3CHA- SiG�A7`U (D�+� 9a $ ° 8 Qr ;/ B. 728;'PG. 100 INV. EL. 1 I - fNV, _ _EL, 475. 14 _1 475.01 ��.� •' � •'' - • Dominion° / _�\'\ y / ,• \� Profess sional Engine ®r N //• �/" / 12" DIP '�2� /,`1 \ `� :`: \�\ Approval DO�,h1O� ■u '/ 3•- / /' �� -' TOP OF WATER `� `' `'a '� ` Typical Drawin Information EL. 473.0 9S�y` \ ``�• -�/ \ ROD'' Fd. / ' j �� L A K E (BENT) / tx � 1 q•05 / +, 473.97 FOREST LAKES COMMUNITY ASSOCIA FION, INC. ° IN V. EL. PARCEL ID: 04634- 00- 00 -000AO + D Fd. 473.92 D.B. 1304 PG. 346 EDGE OF ° ° ° R (BENT) �- ZONED: R- I WATER EDGE OF WOODS �✓. r ,r EDGE OF EXPANSION AREA = 17,633 S.F. 20 0 20 40. Ql ' WATER sect I e feet Library L000tion Cell Name B/M Assembly Pape Stand Foundation Cells (Pier) Pipe Stand Foundation Cells (Spread) Foundation Cells for Other Typioal Struotures Steel Detail & Assembly (Pier) (Spread) Lic. No. 036009 LANDSCAPE PLAN HOLLYMEAD SUBSTATION ALBEMARLE COUNTY, VIRGINIA Name Date Project No. Sheet No. Designed by: CAH 1/10/13 992310 Approvals CAH 1/10/13 Scale 6 OF 10 Approvals 1' =20 B/M No. Revisions 0000 Cad File Name 0600082a.dgn ((]]�� Drawiing No. PLOTTED: Ni*N!•t *t3SYTIME 0600 -082 W I-- N N N N N N N N C M W mod W m� °o _oa ti N Q \ U r U z 0 U W W � CL � (n 0 W W m Z W �Q� W LL 0 moU m i 0. C M J3 Z DALY. BRICK CONCRETE CONCRETE FEET fWUM f VN-W CU. YARDS 0 -Y L m C] �- 6 0.7 Z Ao U B FURNISHING AND PLACING ALL MATERIALS 0.765 1.901 7 Revisions 0.785 41USERNAMEA B 0 1 2 3 4 5 STEEL PLATE 6.5' ORIFICE a INV.= 484.60 7 8 9 10 11 12 SECTION A -A me ftli NONE APPROXIMATE WEIGHT CAST RON TOP COVER 137 ± 7 LBS. FRAME 238 ± 12 LEIS, MH-1 A FRAME SECTION AT MID POINT rERENCE STANDARD MANHOLE FRAME AND COVER X2 VF MA. DEPARTMENT OF TRANSPORTATION _ ORIFICE PLATE DETAIL Typical Drawing) Library Location Cell Name B/M Assembly Pipe Stand Foundation Cells (Pier) JPipe Stand Foundation Cells (Sproad)l Foundation Cells for Other Typical Structures Inf or-motion (Pier) (Spread) N.T.S. Steel Detail & Assembly BOTTOM STANDARDS MANHOLE 12' PIPE 6.5' ORIFICE a INV.= 484.60' SEE STANDFRID SL -iFOR /PPLICABLRY OF SAFETY SLABS. STANDARD MI( -1 'F�FET TOP OF MASONJRY..I ME * COVER � I SUFFICIENTLY LOW TO I ADJUSTMENT OF COVER GRADE HY THE USE OF BRKIK AS DIRECTED BY SECTION B-B BRICK CONCRETE OR CONCRETE BLOCK B J HALF SECTION A -A (WFFH FRAME MID COVER REMOVED) BRICK CONCRETE NOTES, 1. QUANTITIES SHOWN ARE FOR MANHOLE WITHOUT PIPES. THE AMOUNT DISPLACED 'BY PIPES MUST BE DEDUCTED TO TABLE OF QUANFInES DEPTH BRICK MANHOLE CONCRETE MANHOLE DALY. BRICK CONCRETE CONCRETE FEET fWUM f VN-W CU. YARDS 4. INCLUDING ...0.785 IA37 6 0.7 0.785 L699 B FURNISHING AND PLACING ALL MATERIALS 0.765 1.901 7 LO 0.785 2.223 B 9.2 . 0.785 .2.485 9 L4 0.785 2.747 10 LB 0.7115 11 1.9 . O. W70 3,450 12 2.2 0.970 13 2.6 0.970 4179 14 Ea 0,970 4 15 3.1 0.970 4.11103 1 IB 3.4 0,970 8 .17.. -.4.0. L173 8.032 CRE ENT .46 _ D. OBTAIN TRUE QUANTITIES. 2. A BASE THICKNESS OF 9" WAS USED IN COMPUTING CONCRETE QUANTITIES. 3.INCRfldEKTS TO BE ADDED FOR EACH .ADDITIONAL FOOT OF DEPTH. 4. MATERIALS MAY BE BRICK CONCRETE OR APPROVED CONCRETE M I&W BLOCK. 3.F BLOCKS ARE USED THE MWM1N THICKNESS OF SAKE IS TO BE 5". TO WALL ARC FOR CONCRETE._ IL ALL CONCRETE. TO BE..CLASS A3, . 7. WHEN IS TO SON HAPED I N ACCORDANCE WITH STANDARD 15-1 IATTpF�LL COST A TO PLACING SHAPING 15 TO BE INCLUDED IN THE BID PRICE FOR THE STRUCTURE. SPECIFICATION 'ARE MANHOLE FOR 12" - 48" PIPE CULVERTS ROAD AND RR�ANDARDS 302 VIRGINIA DEPARTMENT OF TRANSPORTATION REVLON DATE SHEET 1, OF 5 108.01 t q A }_ N t' DETAIL A %2 - SECTION -CAST IRON Y2 SECTION STEEL_ NOTES 2' -7" A LUGS WITH 1!. l I L 2%2" 1 ',4" x ENO _ 1. DEPTH OF INLET (H) TO BE'SHOWN ON CAST WITH "-^jt - 10' ^4" LONG PLANS. FOR DEPTH GREATER. THAN 10' USE COLLAR _..__, STANDARD DI-IA // OPTIONAL- .N BRACE Rt85 B 2 2. THE 'H" OLMENSION SHOWN ON THE CAST DALY. THE GUTFALL PI J THE FOP OF THE IRON STEEL 66 3 LEIS . 1 93.6. LOS SHALL BE DE7ETHE' BYATHE SIDNS - INCLUDING INCLUDING LUGS CONNECTORS INVERT -IS'TO HE SHAPED IN ACCORDANCE B 2 2. THE 'H" OLMENSION SHOWN ON THE STANDARDS AND SPECFED ON :7 ' - ONE WELDED T THE GUTFALL PI J THE FOP OF THE JOINT S STRUCTURE. PLAN 'IT' 01MENSIONS ARE APPROXIMAiP_ONLY FOR ESTIMATING WELD ALL S SHALL BE DE7ETHE' BYATHE SIDNS TO COLLAR CONTRACT FROM FIELD CONDITIONS. 3. WHEN SPECIFIED ON THE PLANS THE INVERT -IS'TO HE SHAPED IN ACCORDANCE WITH STANDARD IS-1. THE COST OF FURNISHING AND PLACING ALL MATERIALS BE INCLUDED INFTHE BID PRICE FORTE E B x 4" STRUCTUR . LUGS f 1 g+ � STUD 4. THE EVENT THE INVERT OF THE CONNECTORS . O UTFALL:PWE IS HIGHER THAN THE BOTTOM OF, THE STRUCTURE, THE NVERT DETAIL A OF THE STRUCTURE SHALL BE SHAPED WITH CEMENT MORTAR TO PREVENT STANDING OR PONDINC OF WATER IN THE SECTION B'B STRUCTURE. THE COST OF FURNISHING COLLAR DETAIL AND PLACING ALL MATERIALS INCIDENTAL iQ INLET SHAPWG IS TO BE INCLUDED, "MIN RASED LETTERING IN THE 80 PRICE FOR THE STRUCTURE. DUMP NO WASTE DRAINS TO..WATERWAYS' 5, STEPS ARE EA BE PROVIDED WHEN E I$ ;Y 4' -0" OR GREATER.: FOR DETAILS SEE. STANDARD S7 -L DETAIL. B 6. THIS ITEM MAY BE PRECAST OR CAST- IN-PLACE.- 2'-6" D I ee 7. #4 X B" SMOOTH DOWELS AT `CLO�H E ..� -� SE NL H 1 APPROXIMATELY 12" C-C TO BE T•3. . P L ACED W ALL AREAS ADJACENT 4" DEPTH AGGR. TO ABUTTING CONCRETE TO PREVENT #68, #7B OR jnj SETTLEMENT. IN LIEU Of DOWELS _:. #B x 6" WIDTH ��It��QQ�Q A 2 "X4A STANDARD MAY BE PROVIDED. HEM E STANDARD T-01 -3, 4 FOR 3" DIAMETER ALTERNATE DESIGN. 2 N : COLLAR WEEP HOLE 8. 3" DIAMETER WEEP HOLE W. i ,. 12 "X12 " p D, SEE NOTE 8 PLASTIC HARDWARE CLOTH t MESH 7 g 12" OR GALVANIZED STEEL WIRE, MINIMUM " ^)5 " -18" OR. 24" jI�I WIRE DIAMETER 0.03 ". NUMBER 4 MESH 12 HARDWARE CLOTH ANCHORED FIRMLY cn. TV ivn s ..L IIJJ U 11 L! TO THE OUTSIDE OF THE STRUCTURE. 9. CAST IN PLACE CONCRETE IS TO BE CLASS A3 (3000 PSI). PRECAST t, '� . ^ LLLIII UUU CONCRETE IS TO BE 4000 PSI. � 'n DETAIL B - +.^'."^'..�" .Q a 2" 10, ANY ALTERNATE METHODS OF ANCHORAGE SECTION A A �" MEETING THE APPROVAL OF THE ENGINEER CONCRETE ,QUANTITIES FOR MIN. DEPTH MAY BE SUBSTITUTED FOR THE CAST IRON APPROXIMATE WEIGHT LUGS AS SHOWN HEREON. ' 12" CONCRETE PIPE.- 1.440 CU. YD. CONCRETE P /� ".r,� �,,,, ..,I�.:�i" GRATE 363 t 16 LEIS 11 DUMP NO QUIRAEDSON PLL AIRWAY 15" CONCRETE PIPE ' 1.528 CV. YD, CONCRETE 18" CONCRETE PIPE - 1.620 CU.: YD. CONCRETE GRATES. LOCATION OF LETTERING MAY 24" CONCRETE PIPE - 1.817 CU. YO, CONCRETE SEC_ TION C-C SECTION D-D VARY BY MANUFACTURER. ADDITIONAL Foos of DEPTH. GRATE DETAIL, STANDARD DROP INLET REV 8/07 12TH - 24" • IN 104.01 ., Dominion, Profassional Enq)na Approval `o® ®sms#0 o��s tALT.tT O� �M \ �t� (H) - 101 ,. W -/ Dominion® 233 302 CONSTRUCTION DETAILS I HOLLY MEAD SUBSTATION ALBEMARLE COUNTY, VIRGINIA Vt1HKLEiQE A. ► jA�PER '� Name Date Project No. Sheet No. LiC. No. 0360 Designed by: CAH 1/10/13 992310 ��v� Approvals CAH 1/10/13 Scale 7 OF 10 N s Approvals N.T.S. 01j�NAIa E B/M No. Revisions Q� 0000 Cad File Name 0600083a.dgn Drawing No. PLOTTED: ♦si•Si*0$$*SYTIME 0600 -083 W N N N N N N N N N C N W �ovWi .ao a M C 01 -D Ko c� 00 M m M co M 2 N : COLLAR WEEP HOLE 8. 3" DIAMETER WEEP HOLE W. i ,. 12 "X12 " p D, SEE NOTE 8 PLASTIC HARDWARE CLOTH t MESH 7 g 12" OR GALVANIZED STEEL WIRE, MINIMUM " ^)5 " -18" OR. 24" jI�I WIRE DIAMETER 0.03 ". NUMBER 4 MESH 12 HARDWARE CLOTH ANCHORED FIRMLY cn. TV ivn s ..L IIJJ U 11 L! TO THE OUTSIDE OF THE STRUCTURE. 9. CAST IN PLACE CONCRETE IS TO BE CLASS A3 (3000 PSI). PRECAST t, '� . ^ LLLIII UUU CONCRETE IS TO BE 4000 PSI. � 'n DETAIL B - +.^'."^'..�" .Q a 2" 10, ANY ALTERNATE METHODS OF ANCHORAGE SECTION A A �" MEETING THE APPROVAL OF THE ENGINEER CONCRETE ,QUANTITIES FOR MIN. DEPTH MAY BE SUBSTITUTED FOR THE CAST IRON APPROXIMATE WEIGHT LUGS AS SHOWN HEREON. ' 12" CONCRETE PIPE.- 1.440 CU. YD. CONCRETE P /� ".r,� �,,,, ..,I�.:�i" GRATE 363 t 16 LEIS 11 DUMP NO QUIRAEDSON PLL AIRWAY 15" CONCRETE PIPE ' 1.528 CV. YD, CONCRETE 18" CONCRETE PIPE - 1.620 CU.: YD. CONCRETE GRATES. LOCATION OF LETTERING MAY 24" CONCRETE PIPE - 1.817 CU. YO, CONCRETE SEC_ TION C-C SECTION D-D VARY BY MANUFACTURER. ADDITIONAL Foos of DEPTH. GRATE DETAIL, STANDARD DROP INLET REV 8/07 12TH - 24" • IN 104.01 ., Dominion, Profassional Enq)na Approval `o® ®sms#0 o��s tALT.tT O� �M \ �t� (H) - 101 ,. W -/ Dominion® 233 302 CONSTRUCTION DETAILS I HOLLY MEAD SUBSTATION ALBEMARLE COUNTY, VIRGINIA Vt1HKLEiQE A. ► jA�PER '� Name Date Project No. Sheet No. LiC. No. 0360 Designed by: CAH 1/10/13 992310 ��v� Approvals CAH 1/10/13 Scale 7 OF 10 N s Approvals N.T.S. 01j�NAIa E B/M No. Revisions Q� 0000 Cad File Name 0600083a.dgn Drawing No. PLOTTED: ♦si•Si*0$$*SYTIME 0600 -083 W N N N N N N N N N C N W �ovWi .ao a M C 01 -D Ko c� 00 M m M co M 00 0 a c 0 x a ALBEMARLE COUNTY, VIRGINIA 9' MAX. i o o o (n M a M M •„ w Name U Project No. .. e CAH U 0 3 8 OF 10 ZU #57 STONE 1/10/13 Scale Approvals Revisions I*USERNAME* m 4IN THK. VDOT NO. COARSE AGGREGAT SITE STONE PROPOSED GRADE 4' 3% GRADE —�i- I D =0.5' (MIN.) 1L_ D =0.9' (MAX.) __j1 1' 2 2 PROPOSED 2 BERM FLAT BOTTOM BERM DITCH DETAIL (NTS) 1 Typical Drawing Library Location Inf or-motion BASE COURSE (4IN LIFTS) i 2 3 4 5 7 8 9 10 11 %' GALVANIZED THREADED ROD 7' -0' LONG 2 - REQUIRED PER INSULATED SECTION i 'GALVANIZED TYP E-70 WASHER %8 24 - REQUIRED PER INSULATED SECTION p -- z pJ(n - p p p W W @pp0= p'~''�JOm oU�= TYP E -70 �8 �0UjU)�N r' J�� -+C� UZWZUW <r �ft SPOOL a ' r- U Jam= INSULATOR iv W n (=nom ~ 59455500 - °- F H zz 12 - REQUIRED 2' PVC END CAF - HAVING u /s' HOI DRILLED THROL THE CENTER %'x4 %Z. 20 - REQUIRED GALVANIZED BOLT PER INSULATE[ WITH NUT JOSLYN - CLEVIS SECTION 12 - REQUIRED CAT.No. J251 PER INSULATED 12 - REQUIRED SECTION PER INSULATED SECTION ANTI - CLIMBING AND INSULATED FENCE DETAIL "A" 1FT MIN. NOTE: 1. INSULATED FENCE SECTION USED TO ISOLATE SUBSTATION FENCE FROM CONTIGUOUS FENCES NOT PROTECTED FROM TOUCH POTENTIAL BY A GROUND GRID. THIS COULD INCLUDE FENCES CONSTRUCTED BY ADJACENT PROPERTY OWNERS. 2. EACH SPOOL INSULATOR SECTION PROVIDES 12KV FLASHOVER PROTECTION. 3. MULTIPLE SECTIONS WILL INCREASE INSULATION VALUE. 4. THIS SECTION IS NOT TO BE USED AS PART OF THE SUBSTATION FENCE. l 2 /_ PROPOSED GRADE �1 • I�. SPACED EVERY VERTICALLY 3" TOP OF WALL ELEV. = VARIES HEIGHT VARIES HOLLYMEAD SUBSTATION ALBEMARLE COUNTY, VIRGINIA 9' MAX. o o o (n M a M M •„ w Name o Project No. .. Designed by: CAH 1/10/13 992310 8 OF 10 Approvals #57 STONE 1/10/13 Scale Approvals WRAPPED IN A o B/M No. NON -WOVEN 0000 GEOTEXTILE o o FABRIC '., lllllI oao ��Ill ll NO. 5 BARS -I I1 —I I MI I SPLICING DOWELI IIIIEIII; w ~o o(L SPACED EVERY -ill o PLOTTED: * *" * * * * * * *sYTIME 6" 0. C. 0 SPLICING DOWELS TIED TO STEM AND NO. 4 BARS HEEL FLEXURAL SPACED 8" O.C. REINFORCEMENT 0.5' r 8" NO. 4 BA 3 >, SPACED E 6" 0. C. 6' NO. 5 BARS SPACED EVERY 6" 0. C. 12 "0 PIPE 4 "0 PERFORATED DRAIN OUTLET THROUGH WALL AND MITERED TO SLOPE EVERY 50 FEET Mill! Cell Name I B/M Assembly I Pipe Stand Foundation Cells (Pier) I Pipe Stand Foundation Cells EX. GRADE 3" 1' -3" NO. 4 BARS SPACED EVE 6" 0. C. VERTICALLY 12 3" TOP OF WALL ELEV. = VARIES 3° NO. 5 BARS SPACED EVERY 6" 0. C. WISTI NG DOWELS F0 STEM AND FLEXURAL DRCEMENT DETAILS FOR SITE PLAN INFORMA TION PURPOSES ONI Y NOT FOR CONSTRUCION Foundation Cells for Other Typloal Structures Steel Detail & Assembly (Pier) (Spread) Dominion- Professional Engineer Approval +1a�'k'LT.FI p� C! CARL EA. f I RC'ER Lic. No .'060, 9 Vd ',A_l�_�?' 6 sy - L s NAL 0 # *0* SUBSTATION SITE __\ \ 45° X'12 SECURITY FENCE DETAIL (NTS) '� Dominion i U i c L 3 L D CONSTRUCTION DETAILS II HOLLYMEAD SUBSTATION ALBEMARLE COUNTY, VIRGINIA W (n M a M M •„ w Name Date Project No. Sheet No. Designed by: CAH 1/10/13 992310 8 OF 10 Approvals CAH 1/10/13 Scale Approvals N.T.S. B/M No. Revisions 0000 w ~o o(L Cad File Name 0600084a.dgn Drawing No. 0600-084 PLOTTED: * *" * * * * * * *sYTIME C m i0 OD m M m GO m a- A area _ r ]L _ z Land Cover Description O U W acres gravel substation* substation* 1 Ir 0: 0.70 0.721 Q N Q U ow I- W m 0.448 0.14 W 0.0238 woods, 6 % + ** <E U �OV N U X 0.13 11.30 r F- U open space, 6 % + ** y 0.02 Weighted C Factor; z1`iX Total Area °" = -0.60 !0 OW 1 * assume gravel = 70% impervious _ _ N, ** C soil, good hydrologic condition Table 4 -5A, SWM Handbook W<r Sum: j* assume gravel = 70% impervious Q ** C soil, good hydrologic condition Table 4 -5A, VA SWM Handbook U WmW n to . -._ i s >a� oughnes ft /ft <C a 0 U n .-� U 2 -yr P LM 1: 0 0 oughnes 0. n. i inches 4RCS Fig. 3.1 minutes 0 m 0.24 a 0 3.7 Z U Shallow Concentrated Flow Revisions •LISERNAMEi M 0 1 2 3 4 • ' EXISTING OUTFACE 1. In e " t E1 ' A area _ Runoff C Roff Coefficient A C x _ Q2i cfs Land Cover Description ! ! acres gravel substation* substation* 1 1.03 0.70 0.721 gravel substation* , 0.64 woods, 6% + ** 0.448 0.14 0.17 0.0238 woods, 6 % + ** STORMWATER MANAGEMENT CALCULATIONS 0.04 open space, 6 % + ** 1 Sum: 0.13 11.30 0.24 Sum: 0.0312 10.776 open space, 6 % + ** 1 0.02 Weighted C Factor; z1`iX Total Area °" = -0.60 1 0.0048 1 * assume gravel = 70% impervious _ _ _I . u -1VA ** C soil, good hydrologic condition Table 4 -5A, SWM Handbook 0.70 Sum: j* assume gravel = 70% impervious Sum: ** C soil, good hydrologic condition Table 4 -5A, VA SWM Handbook - - - -- 2 yr P Inches v, fps - - NRCS Fig. 3.1 . -._ i s Description oughnes ft /ft - TIME OF,CONCENTRATIOW inlet E1 n L Slope 2 -yr P v, fps Tc Description oughnes ft ft /ft inches 4RCS Fig. 3.1 minutes Sheet Flow Uncompacted Gravel 0.24 150 0.03 3.7 -- 15.61 Shallow Concentrated Flow unpaved 64 0.03 -- 2.8 0.38 Channel Flaw 12" pipe 1 46 1 0.054 1 -- 1 4 0.19 FLOW $ UMMARY, Area, ac C Tc, min. iz, in /hr Ciz,cfs 1101 in /hr .Cl10,cfs_ Inlet E1 1.30 1 0.60 16.2 3.3 2.58 4.4 3 42: w -.,/ x x x x x x x x x x IN E1: DA = 1.30 0.60' Tc 16.2 MIN-------.. 0 ToG =. 500.15' TOC= _ POWER POLE 500.09 0 '. 1 VP N896 x HOLLYMEAD SUBSTATION TOC= x 8 N LINK FENCE VIRGINIA ELECTRIC & POWER COMPANY TOC= o 500.110 B' CHWN LINK FENCE 500.10 - PARCEL lD: 03200 -00- 070 -03700 R00 & 01H ELECTRIC ->I - - - - 08. 728, PG. 100 GIP SET , (TYPICAL) f - ZONED -R -1 - .- -- -- - -._, -- --°-- ._ ° °._ -° ' GUY ANCHOR - •-. _ TE EQ_WPMFJJT A`CC;ESS FA 71/ POWER PO (TYPICAL) .- ° - - - - - - - - P - - - .- - -• �.�•• - � - E - . f VP NB97' `►. I \ _ - -. 6A&E ' i TOC= 4OC- _� , _ ' • - _ •�\ o f . • ' / 7ROUGH ' ' . , 0 499.60 ® - ._,• -_ _ '•, � ) l /rLO�NIROI,) :c "„ -- _____ __ _________ 99.56 -_� POST'• 1 -. _r•_..__. -- 1T'S'f I /750T�: /� • �'• 1 � TOG= _ EED F. EL 499.05 1 GRAVEL \ \ I I GQNG�ci . VP N9,^o, /J o TOC= \ \ I . 01H. '' tOR . d ♦ �; TELEPHONE I I O TOG= 498.57 N G0� UG� r .� • PEDESTAL I 0 TOG- TOG= I POWER I = 498.58 ® 0 I , V' , + -.. 0498.600498.63 498.57 I 1 �"•i .'' • f /- P NB(j6 x V , - _ _ _ OVERH I x 1 j ' . ''' r 0/. lo TOC 498.62 0 ELEC. GOES U/ l , i _ . _ \ Tbe _ _ _ .. _ LIGHT t ,' • • , \ TOC= (''j�� 498.62 TOC= TQC= TOG- TOG= ' - - - • 0- 498.39 i jl.( 0 0498.59 497.99 ❑0498.61 0498.60 .' � .I!` � - - I i 1 ' '' • GpeG: °� 5025 496.559 CAP SET CAP SETT, I I I , ✓ * , + 80.00' 0 roc= p Toc= sa.00' Q = 0 rocs ' I x \ R�OPD _ _ _ _ _ 49h7B 49T.TT _ .. _ _ .. - TOG= 49711 497.30 SET GUY ANCHOR I \ \ \ GRAVEL G = 497.31 4929_ 497.3149OC90' • _ / {y I _ - ,(7YP /CAL) / i + \ \ \ \ , i TOG= \ \, 0497.32 0430 48230 0497.29 JSA77? U� �URf 497.50 \ \ �ii01=40 2054/583 LIMNS OF ______ \ �'\ �„f "•�•l 1 , M ! X,E O GRAVEL - �9 7.46 \ \ \ 497.370 0497.37 497280 4970.300 '/ . / I +A95 �' \ 1 / W 01JOS I �\ 1e R00& T = \ ` CAP SET / �4 .49 \` °- - - -- r EQUIPMENT ACCESS PATH - - -- -- --------------- ---- i A" "' I 4' TREE �� / h9A9 �, -+ -"�' "'__ 'P`-R 12' TREE - _ . U„� ry_ j"y -8' 7REE - 0' TREE-, EDG47 OF WO 0 DS / / Y+'h` 12' TREE UM/TS OF _ _ • - .✓ 6 Il / •ELECTRIC ___..- r��- .__._r - - - - -- _ r -r _ = -•t ___." __ -__ _ _.____ TRANS /FORMER •/- - �...,,�, - TELEPHONE . _ _A85 ®® r • �� . _ `/ ./ 1��/ ``� °.... ,�`�'•. -- WOODS �CENTERLINE �� /l ROO Fd. -3jq�` \�• `' - _ ®„_ - . ' RIP -RAP. 10TH / M,l E• X D /95 ,iY 0 ,0 D $, . /�• jf �• ^` ® . _ EDGEOF• ;e WOODS + / TEL'EPhGNE® /" I , ' - _ _ _ _ '\. /' `^•... • • . , ,�\� • ' - _ ••r+,. vuff"i OF DE / ,'ROD rd. RIP -RAP . / % 1,0' 1<NAG£,'fA5EMEN1� 1 1 - - tea+, , • , 29 \, `�,' ' .B. 728'PG 100 - - - �• , '' A$ --'-'- / A0,11 j INV.. EL. I 475-.01a. 75.- - 475.14 ,3A! i _�-`'' \ `•� TOP OF WATER �. ' • . \ \ \� R . + - - *°� / , / / i ,yr R. 473.0 �jOHA7T \ (eEFNi,/ r k , r �� • °�� \� - L A K E �5� '�FFR�� •'� _' ` \`• \� INV. EL. ti• _ • ` ' - . /♦ +/ ��/ 473.37 FOREST LAKES COMMUNITY ASSOC/AT /0N, INC. + `• : ; • _ , '�`. PARCEL ID: 04 684- 00- 00 -000AO e ' !, / ' ' ' • /�,� INV. 7 Ei. D.B. 1304 PG. 346 .� '` .�' - . ROD Fd. 47192 EDGE OF �. (RENT) ZONED: R -1 WATER � v ( WOODS ,•/ //, / EDGE OF WATER 1 / R " - -/,//., -•,RJR PRE- DEVELOPMENT STORMWATER DRAINAGE AREA MAP Typioal Drawing) Library Location Cell Name B/M Assembly Pipe Stand Foundation Cells (Pier) jPipe Stand Foundation Cells Inf or-motion E I l 9 10 11 12 PROPOSED OUTFALL 1: inlet 1 A, area C, Runoff A x C _ Q2i cfs ilo, in /hr Land Cover Description ! ! acres Coefficient ( 0.08 0.17 0.01275 gravel substation* , 0.64 0.70 0.448 0.08 0.24 _ woods, 6 % + ** STORMWATER MANAGEMENT CALCULATIONS 0.04 0.17 0.0068 10.4869S 1NeightetlC Factoi,AxC /TofelArea 0.60 RY FLOW SUMMA ;SWM Desigr � open space, 6 % + ** 1 0.02 1 0.24 1 0.0048 1 * assume gravel = 70% impervious _ _ _I . u -1VA ** C soil, good hydrologic condition Table 4 -5A, SWM Handbook 0.70 Sum: 10.70 Sum: 0.4596 2 yr P Inches v, fps - - NRCS Fig. 3.1 weigh ed C Factor, AxC /Total Area ' 0.66' , Description oughnes ft /ft Sheet Flow Uncompacted Gravel 0.24 150 * assume ravel _ 70 % i eNious _ * Cs it good hydrologic iccondition Table VA SWM Handbook 15.61 Shallow Concentrated Flow unpaved 80 _ -- TIME OF CONCENTRATION: inlet 1 ''I n L Slope 2 -yr P y, fps MRCS Fig. 3.1 Tc minutes Description oughnes ft ft /ft inches Sheet Flow Uncompacted Gravel 0.24 150 0.03 3.7 -- 15.61 Shallow Concentrated Flow unpaved 169 0.03 -- 2.8 1.01 Channel Flow 15" pipe 48 0.01 1 -- 4 0.20 Time of Concentration (minutes) .. 16.8 .minutes ' PROPOSED OUTFALL 1; inlet 5 A, area C, Runoff Coefficient 0.70 A x C 0,455 i2, in /hr Q2i cfs ilo, in /hr Land Cover Description gravel substation* ! ! acres 0,65 woods, 6 % + ** ( 0.08 0.17 0.01275 1.98 Inlet 5 i open space, 6 % + ** 16.3 0.08 0.24 0.0192 2.14 STORMWATER MANAGEMENT CALCULATIONS Sum: 10.81 Sum: 10.4869S 1NeightetlC Factoi,AxC /TofelArea 0.60 RY FLOW SUMMA ;SWM Desigr � - C - -- i�, in /hr Qz;'cfs °•, 1 * assume gravel = 70% impervious _ _ _I . u -1VA ** C soil, good hydrologic condition Table 4 -5A, SWM Handbook 0.70 0.66 OE CONCENTRATI N: inlet 5 n L ft Slope 2 yr P Inches v, fps - - NRCS Fig. 3.1 Tc minutes Description oughnes ft /ft Sheet Flow Uncompacted Gravel 0.24 150 0.03 3.7 -- 15.61 Shallow Concentrated Flow unpaved 80 0.03 -- 2.8 0.48 Channel Flow 15" pipe 48 0.01 -- 4 0.20 Time of Concentration ut s 16 3 u es min e . min t FLOW ,SUMMARY: SD Design `` Area, ac C Tc, min. i2, in /hr Q2i cfs ilo, in /hr C40, cfs Inlet 1 0.70 0.66 16.8 0.425 4.3 1.98 Inlet 5 0.81 0.60 16.3 4.4 2.14 STORMWATER MANAGEMENT CALCULATIONS RY FLOW SUMMA ;SWM Desigr � Area, ac C Tc, min. i�, in /hr Qz;'cfs °•, i1o, in /hr Q o, c fs .; Inlet 1 0.70 0.66 16.8 3.2 1.47 4.3 1.98 Inlet 5 0.81 0.60 16.3 3.3 1.61 4.4 2.14 UNROUTED 3.07 4.07 ROUTED (controlled by orifice) 2.39 2.70 ELEVATIONS 490.73' 491.71' Note: Top of pipe= 491.75' 1 1 1 1 1 1 X 1: x. x x x x x x� INLET A 0. �`0 AC C_- ..0 -66 x T_ - 16.8 MIN x TOC= POWER POLE 500.09 VP NB98 Ljni x 6 N LINK FENCE V/RG/N/A ELECTF C & POWER COMPANY TOG= 8' CHAIN UNK fENCE 500.70 PARCEL 10: C 200 -00 -00 -03700 01H ELECTRIC -I - - 08. 28, PC. 100 SET. _- (TYPiCAG) ' -- - - - - - Z ED: R -) - -. - - - - �a T G " 1 E - - lPMfNr'sfCCESS PATH - +p90 A - - - \ \ \ I , /' �/ // r 1'2054/582 ' GU ANCHOR -. -, - - ' POWER PO �ICALJ +..- i \ .- /*". °... -. .� - - . - -- - - - - - - i C =- VP N697- - 7RO 9.60 \ 4 9.56 \ \i N7R0 m ,INLET -rj:. _ 1,A I - ' "� -' -'• 1 -:-., - .. - HOUSE - )```- • , y' ',' ; POST - • -r TOC= ' ^ _ . _ _ . I�GRAV Of� or ✓ / p•_/E, Po` -' I ) 1 x I I roc S9 4 0 499.05 R - £ i / 6 TOC= x i GRAVED I OU010 /' ®� I' ' / 49 VP N6174 ,' 1 I I l Tc - 116. - t t I Q�„ ., ' I TELEPHONE I t O 498.57 PEDESTAL I $ TOC= = = TOC= '• d i/ / W T� TCC L / ` A9 . _ ... 498.6 OC= 4 498.57 I ~' _ _ ^ , _ POWER•POL6 I � - .. _ , 8.62 1'• - _ _ . _ _ _ _ _ OVERH£ALI I I„ ✓', ."j°' /' fLfa ca£s u/q �l 1; \\ TOC= T GC= roc= / 0 498.39. 8.59 ' • I \ \ 5025 I 498.59 S SET 1 + + .� 9ll17f 0.00' ro Oc= 8- - - - • ' ,/ I x \ \ D ET ... _ 497: - 97.7T - _ _ _ .x _ _T�_ 497.31 497.1 GUY ANCHOR / / ] , ' I \ \ R L 497 3 0 7. 497.29 97.29 47YF44t) I Ag1 \ 1 o + \ \ = 64CK8 \ T r TOC =. r / TOG= \ 49.2 4923 9 STRUC. E 1 x 97.501 \ fEOII�t 2054, / LIMITS _ _ O TOG= \ \ a TOG= C= T .= T.60 / I A�6Q \•` m i x •E D I =497.46 - ` 49Z28' 49Z ) I + / wopDS I _ o �'.. �_ROD .1 / I / x � 497.49 ` - - .,- - [EQUIPMENT ta� x • i ,� ACCESS ATH / A96 I ^ 1 ' �°'° �1.. �.• r" 12' TREE 8' TREE> / EGG OF a - - - - - - W0005 'i ..✓ �+::.': : : {.. .4 ....y : :' T xva: ,yi" . :�ri.�s+:.:- asst{ J / TRANSFORMER �.� -_ _ - -_- - - -__ - - -- - - - -- --- _ - - - -- ___ -_ -- A�A9 /• T_EGEPHQNE" _ .... • 6�- -�_ -'_ " - ®- PEDESTAL ..� .,-•„ ,.,, -o v,,,,.- 7 1�r/ _ i ` t' - _ ____________ '�� f "�•�•....__ \\ EDGE OF ._ - ✓/ / .�•,,/ /�%(' _____ \, \v _ WOODS SS ROD F�� -�,0.� - / 'CENTERLINE �•� \' _ ��' �.,,�, Ist + loo 5 ,iY 0,0D$' / ,•''�� /.! F -^�,\` EDCf Of-\` •'. \ '• _ W0'OQS .00 • / +A / TELEPN'£m I/i ,'P' I; .l. _..' - '�,.. -/' ,•� - �'\, \ `ti•.,, �+ . • ; 1 L /MIT$ OF / ROD rd // I RIP -Riff' • . \ �'® / / ♦ l0' DRAlNACE.'EAS£MENT 1 •1 �• w A82� - ®� f pB. 728•PC. roo ` 1 1 �� + • \��. ♦ e IN'A R. 475.01 ",-n i'i ! "' o' - O'• \' \� .' �% 475.14 i i ` '� �` • _ ® , • ��'.. \\ 1 \� TOP OF WATER �q • . \� \\ ,�i 4.• ,, ./�{1 - / ' iy EL. 473.0 °.o'S'QT ` • • \ `�� \` F... -` / k , / i"� T' ��S`�_ -- L A K E '-�� \y TRF�.. T,f v`� •� ` • , , ` \� \ (BENT , • ' S. / AQH• "` �• . - - , _ , \� +/ 1 47197 FOREST LAKES COMMUNITY ASSOCIATION, INC, � 1� fLI PARCEL /D: 04 684- 00- 00 -000AO ` �' • ROD Fd. D.B. 1304 PG. 346 "t 7� , • ' '� ' • /�// 47192 EDGE OF (BENT) • ' / / ZONED: R -1 WATER � � EDGE ,OP • / /�/ EDGE OF WATER �'�," Roy POST- DEVELOPMENT STORMWATER DRAINAGE AREA MAP /�� /, TREE Dominion ° \� Professional Engineer ,L/ Approval Dominion® MS -19 CHANNEL STABILITY_ Slope_- i 'j ! _ 9.8 % Bot'm Width -- 0.25 ft _ n value: riprap Top Width _ _ Existing N u v -�- _ Proposed - 0.024 j 4 r ft d2 - 2 58 0.375 2 39 _0__._4'0_5_F__<_7_._53 Side Slopes: max depth - v2 -- ; ,k C110 57 3 42 2:1 1 ft r d10 0.425 T <0.425 (1486/n) Rh. /3 S 1/2 V 2/3 � I I Foundation Cells for Other Typioal Structures Steel Detail & Assembly (Pier) (Spread) I.041IF �x ••. SWM DRAINAGE AREA PLAN HOLLYMEAD SUBSTATION NnTF OFFSITE CONTOURS CREATED FROM ALBEMARLE COUNTY GIS 40 0 40 80 Mond scale feet ALBEMARLE COUNTY, VIRGINIA ` NANLkNE A. HAV2PER a Name Date Project No. Sheet No. ,, Lic. No. 0360 49 Designed by: CAH 1/10/13 992310 O;4) ww Approvals CAH 1/10/13 Scale 9 OF 10 � . SjONAL E k . Approvals 1' =40' B/M No. Revisions 0000 Cad File Name 0600085a.dgn ` Drawing No. PLOTTED: •asa :4laa•SYTIME 0600 -085 W to N N N N N N N M �Nw C,0 .a it M III Ill I I IIIIIIII I 1 111111111,111 1111 Jill III I I III Jill I I I Ill Ill 0 1 2 3 4 5 7 8 9 10 11 12 -----------------------------------------------------------------=------------------------------------------------------------- - -• - -- \ \ % ---------- - - - - -- ---------------- - - - - -- -------------------= y----------=-------------==---------- - - -• -= \\ \ ♦�� - - - -- I w�• ---- - - - - -- ■�� Owosso / � -x - x - x x x x -x x x x x \ I� .- -. o roc= / 500.15 TOC= ❑ �x HOLLYMEAD SUBSTATION 500.09 TOC= B' CHAIN LINK FENCE t �' VP NB98 . 1 _ ! 8' CHAIN LINK E VIRGINIA ELECTRIC & POWER COMPANY 500.10 T TOC= 0 500.110 \ PARCEL ID: 03200 -00 -00 -03 700 ROD & GRASSED S W AL E _ 01H ELECTRIC-4 ` ` - - _ OB. 728, PG. 100 CAP SET 1 ATYPICAL) - - - -- ZONED: R -1 _ -- -- --- - - - - -- 'lu - - - - - - - - - - - - - - - - - - - - t---- ------ - -- - -- N- ,.- �.. ` �, •. ,., -„ _ � FENCE ' GATE EQUIPMENT ACCESS PATH G - _ GUY ANCHOR _ -� _ _ _ _ + _ _ ___ .._ a. ' yr✓ POWER�L� _(`P/CAL) . ``1 -� ` �____ _________CABLE - - -___- t Z TOC---- - - - - - -- IOC= -� \� 1 /,/ '�"o o- NB97' a - _ . _ 1 \ 1 TROUGH r O 499.60 499.56 \ I /' r .. - : , .. _ , r� POST 1 . _ . r " -HOUSE • ' \ L/MlT` 0� / i ° I r 1 A To c= 1 \ \ x CRAV�L; /. /' ✓. . ■ ■ �Pa ■ �� ', ', f 499.05 TOC= TOC= I ( J I�Efl POL�,, 1 x 1 499.59 ► 499.80 ` GRAVEL 499.40 \\ \\ I / CON�CT 499.07 ( fidS.�a • VP NB7�`^�.' I I I J 11 TOC= \ 1 1 ; ION /. / i ' I I 1 1 I ° i� y I -` / ♦�,' I TELEPHONE I 1 O TOC= 498.57 j UO , / a; PEDESTAL I \ 80 TOC= O TOC= ~ ` ,\ \ 6�9 - - _ _ 8.62 0 ©498.600 498.63 498.58 0 { 498.57 I I x ' / / POWER, - POLE[ I 49 ; "Y !`� 1 x \ ��' OVRHEAd I ��i' ° / \ VP NB66 • ELEC. GOES U%� ♦ - I \ - \ TOC FLIGHT _ I I . ` TOC= 498.62 TOC= TOC= TOC= TOC= 498.39 O O 498.59 497.99 ❑ ®498.61 0 498.60 %S ° F \ ♦ \ a TOC_ ROD & ROD & • -_ 5025 /� A 1 SMTA11nlN 84SEL E 498.59 CAP SET CAP SEr t L I ter,, 1 + ,( / S7,iO4'48� \ ao. oo' 0 roc= TOC= so. oo' Q roc= 0 roc= i �' . ", 1 \ ROD & 457780 497.77 -- -•-- 49?31 73 1 °�'� A /� 1 A C E x 4�,40 R S roc= 4s . o /f I ' o • CAP SET roc =-® o 0TOC= 490290 497.31 roc =p' 1 >�'' GUY ANC1i0R 1 \ \ GRAVEL o 497.31 497.29 •..._ (TY,61CAL) / kg�? 497.31 • 1� TOC= TOC= TOC= TOC= BACKBONE, I WQ: SITE AREA TOC= .�.15 0497.32 0497.30 497.280 0497.29 STRUCTURE !X �I E 1 f50181'f�t0 p 4,5 - • / 1 x 49250 \ ` J/2 5 83 /. ;LIMITS OF . \ GRAVEL O Toc= . \ roc = O O roc= TOC= 0 TOC =o /, �. - ; r L age2 .S M I X E D 497.46 �,�.' 497.31 497.31 497.28 497.30 I T D I S C H A R G E W00D 5 1 ao ROD& I V / REC \ . / ( ` . `~� - ._ __CAP SET- -- - - -- - - -1' ,� x 1 TO , . 1 \ 1 x U 497.49 '• EQUIPMENT ACCESS ';V-= TO F:O R E S T ",,,"L A K E"S -------------------- •� \` kg� �, i 4" TREE 9 ` � I .. -- 1 • + I -^ �. 1tgG 9 ®✓ ? `` ..i- --® F 8" TREE �'S: -- -- + 12" TREE 8" TREE POND • EDGE OF�a 1 , -- -- - - - --- - --- - - -- -- - - - -- - --------- -- - ° -- --�- ........... -�_ WOODS M, •. ..I.•:: . ia' • m(iT .OF... =r"r : iJ a y «. TXPICAL• ✓' .• :4 • _ _ . pia:: •. - . -- - .. ' :. r. . 5 -4+ 9 _ __ - ryar•raYravravi avr a•raa•rav r,.►y�syr- f_►S[,} ••�Yl tz: Y. !. Yr2 1 YrYGIa: - _ �.�vr�vTavr v_a'r.. w�r�,r_r "ayravr aw _vi • - =- ,ma=y --` = _- __^✓�►= . / TRANSFORMER r . --.__ - --- -- - -- - - - - -- =_`�' __�.� - -- -- -= ----- _ - - - - -- -- _ ---- - -/7- .__ -----•-• -- r 93$4 DE / , . ______ _ -- -- -•_ - -_.- __ '--- ' -•_ EDGE OF '•- - ' / � �/ /�/ -'-- --... 1 - \1\ ' • � WOODS • - _ - ---•__ /�%;l /�- - ...__ ROD F �`•� \�` - ,` ___-•-- --- ---•--' G R AS S $. W AL E / - CENTERLINE ;/ ' i -/� /j -.� ""'-490 /I M,; X �' D jam/ // M I X E D / 0 W O 0 D S" / %' / l,I � \ EDGE 0�� \` \ W O -0 D S .............. • / kg9 '�� ► ® - :cl-- WOODS \` r£L'EPH�NE,� f S S E D S W A LIMITS OF 'ROD F `\ DRJGGE!E4I EMENT �! I 1475.14 - 475.01 ! ' i / o • _ r• ��-' � � � TOP OF WATER EL. 473.0 �Sp/9�T\ o _ TL ` \• i' / "(8E NT A; i ,,f / INV. EL. RAN/ ` �` '� \• IZ� tJ. �` ` _' - - . / +.1 ` 473.87 FOREST LAKES COMMUNITY ASSOCIATION, INC. +�� / PARCEL ID: 04684- 00- 00 -000AO 1 • �' �� - IN 473.92 D.B. 1304 PG. 346 EDGE OF ` o\ R00 Fdj .. •fir' / ZONED: R -1 WATER ` (BENT "� EDGE OF" / WOODS EDGE OF WATER i P5� '' g0� WATER QUALITY SITE AREA MAP L) z z Y. Ln = 0-<(1) m Lu M LtJ 1� 0 r+ U a m¢ o zm I // X q m 0 m t/ i(Lza -C � �ll Revisions i Typioal Dr -awing Library Location Cell Name B/M Assembly Pipe Stand Foundation Cells (Pier) Pipe Stand Foundation Cells (Spread) Foundation Cells for Other Typical Structures Steel Detail & Assembly *USERNAME* Inf or-motion (Pier) (Spread) -: I X, I j � I Short Version BMP Computations / Albemarle County Water Protection Ordinance: Modified Simple Method Plan: Hollymead Substation Expansion Water Resources Area: Development Area Preparer: Geosyntec Consultants, Inc. Date: 16- Feb -99 Project Drainage Area Designation Hollymead Substation site L storm pollutant export in pounds, L = [P(Pj)Rv /12 ] [ C(A)2.72 ] Rv mean runoff coefficient, Rv = 0.05 + 0.009(1) Pi small storm correction factor, 0.9 1 percent imperviousness P annual precipitation, 43" in Albemarle A project area in acres in subject drainage area A 1 J 9 �� C pollutant concentration, mg/I or ppm target phosphorus f factor applied to RR V required treatment volume in cy, 0.5" over imperv. area = A(1)43560(0.5/12)/27 RR required removal , L(post) - f x L(pre) 0 /6RR removal efficiency , RR100 /L(post) Imnerrvious Cover Computation (values in feet & sauare feet) Item V WATER QUALITY PLAN ner�A Area • - ENI-IVJ�410101 -1 0t �= ALBEMARLE COUNTY, VIRGINIA 1evelopment Area pre - development Drinking Water Watersheds W JArea post- development Other Rural Land Name Area Roads Sheet No. Length 01 0 Width subtotal 01 0 01 0 0 0 0 CAH Length Width 0� 0 0 0 0 0 subtotal Approvals 0 0 _ 0 0 0 Driveways Length and walks 01 01 Width 0 0 no. subtotal 0 0 0 0 0 0 Length Width no. subtotal 0 0 0 0 0 0 0 0 0 « w 7/ 0 Parking Lots 1 01 2 1 3 4 1 0 1 2 3 4 0 0 1 0 Gravel areas Area o 0.70 = +Drawing 0 6 0 0 - 0 8 5 39639.6 Area x 0.70 = 42688.8 566218x 60984 Structures Area 0 0 0 no. subtotal 01 0 01 0 0 0 0 Area no. 0 0 subtotal 1 0 0 0 01 0 Actively- grazed pasture & yards and cultivated turf Area 52272 x 0.08 = 4181.76 Area F--4-79-1-6 ]x 0.08 = 3833.28 Active) crop land Area - x 0.25 - 0 Area x 0.25 = 0 Other Impervious ous Areas 0 0 Impervious Cover Rv(post) V WATER QUALITY PLAN :L- I(pre) New IDevelonment (For Development Areas. existina impervious cover <= 20 %) •� • • ' *min. values Rede'velonment (For Develonment Areas. existina impervious cover > 20 0/61 WATER QUALITY PLAN ner�A Area • - ENI-IVJ�410101 -1 0t �= ALBEMARLE COUNTY, VIRGINIA 1evelopment Area Drinking Water Watersheds W Gl IA -L 4 A, t-1 RPEE2 y Lie. No g Other Rural Land Other Rural Land *min. values Rede'velonment (For Develonment Areas. existina impervious cover > 20 0/61 GRASSED SWALE SS1 %; EFF. =15% REMOVAL ■ ■ ■ ■ ■ ■ ■ WATER QUALITY SITE AREA NOTE OFFSITE CONTOURS CREATED FROM ALBEMARLE COUNTY G.I.S. 30' 0 30' 60' scale -feet Dominion, Professional Engineer Approval - I(post) WATER QUALITY PLAN ner�A HOLLYMEAD SUBSTATION ENI-IVJ�410101 -1 0t �= ALBEMARLE COUNTY, VIRGINIA Drinking Water Watersheds W Gl IA -L 4 A, t-1 RPEE2 y Lie. No g Other Rural Land GRASSED SWALE SS1 %; EFF. =15% REMOVAL ■ ■ ■ ■ ■ ■ ■ WATER QUALITY SITE AREA NOTE OFFSITE CONTOURS CREATED FROM ALBEMARLE COUNTY G.I.S. 30' 0 30' 60' scale -feet Dominion, Professional Engineer Approval - I(post) WATER QUALITY PLAN ner�A HOLLYMEAD SUBSTATION �= ALBEMARLE COUNTY, VIRGINIA W Gl IA -L 4 A, t-1 RPEE2 y Lie. No g �� (n Name Date Project No. Sheet No. � .060 M N Designed by= CAH 7/2/13 992310 Approvals CAH 7/2/13 Scale rl, 10 OF 1 « Approvals 1' =30' Sf�NAL� Vq% « '�141� 1 Q ip B/M No. Revisions « w 7/ ° � W 0000 Cad File Name 0600085a.dgn No. o +Drawing 0 6 0 0 - 0 8 5 .o ii PLOTTED: * *$ * * * * * * *sSYTIME