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Home My WebLink AboutWPO202100055 Plan - VSMP 2021-12-09�ZOZ �]DeHDOD4 900-0CV �C 'ON NDZVH l8£0-0: 'ON 3SN301-1 L09LZ VN110dV0 HiHON `HJ13-WH 004 311f1S `(RHVA3Iino8 3SVHOlS3M l LOb HEIAMVS (INV N3ZVH .00.90-ctF:9 80 ZO'Z V 6ZOZ :ale(] UCIZI? ossemolueg OSSennolueSlaegoiW jaegoiW Aq pou6is XIlel!6!4 Ail-110VJ AJDAOOD2J EiajnOSEnI 2J31VM a30NVACIV N333 10 S32JOOW I 31VOS Ol ION dVN NOUV30-1 NOIlomliSNOO 2J0zl Dsn lON 00 - NOISDO Al JVNINPDD Jd SiN3lAl3A0 JdlAll 32if11of12ilS`d2iJNl �VOI J103 3 :Ali10vJ A JDA00D j Eio jnosEi j JDiVM GDONVAGV NEE] JO SD J00lAl AlImonnd H3M3S I HUM NYA VIN19 :11n 6ElinsE]llo�:JdH0 .1112iOHlflb' 2i3MEiS'8 JE1iVM VNNVAI :1 62 w a SHEET INDEX PIPE ABBREVIATIONS A AIR SHEET No. SHEET NAME AL ALUM SOLUTION NAOCL SODIUM HYPOCHLORITE HOLDING POND PUMP STATION ADS ANAEROBICALLY DIGESTED SLUDGE NRCY NITRIFIED RECYCLE FLOW GENERAL BS BLENDED SLUDGE NPW NON POTABLE WATER E190 POWER PLANS BWD BACKWASH DRAIN OF OUTFALL -- COVER E191 MCC-10A DEMOLITION SINGLE LINE DIAGRAM AND ELEVATION BWS BACKWASH SUPPLY PD PROCESS DRAIN G1 SHEET INDEX E192 MCC-10A PROPOSED SINGLE LINE DIAGRAM AND ELEVATION E193 ELEMENTARY CONTROL SCHEMATIC AND CONDUIT AND WIRE SCHEDULES BWW BACKWASH WASTE PE PRIMARY EFFLUENT CAS CAUSTIC SOLUTION POL POLYMER CEN CENTRATE PS PRIMARY SLUDGE CIVIL PRIMARY CLARIFIER CS CHLORINE SOLUTION PTE PRELIMINARY TREATMENT EFFLUENT E200 POWER PLANS D DRAIN PW POTABLE WATER C01 NOTES AND LEGEND E201 MCC-3A DEMOLITION SINGLE LINE DIAGRAM AND ELEVATION DATR DATA ACCORDING TO RECORD RAS RETURN ACTIVATED SLUDGE CO2 VIRGINIA MINIMUM STANDARDS E202 MCC-3A PROPOSED SINGLE LINE DIAGRAM AND ELEVATION DFM DRAIN FORCE MAIN S SAMPLE E203 RISER DIAGRAM AND CONDUIT AND WIRE SCHEDULES DG DIGESTER GAS SA SERVICE AIR SITE DP DRY POLYMER SBE SEDIMENTATION BASIN EFFLUENT BLOWER BUILDING DS DIGESTED SLUDGE SC SCUM C10 OVERALL SITE PLAN DSU DIGESTED SUPERNATANT SD STORM DRAIN C11 EXISITNG CONDITIONS AND DEMOLITION PLAN E380 POWER PLAN EW EFFLUENT WATER SCE SECONDARY CLARIFIER EFFLUENT C12 EXISTING YARD PIPING PLAN FA FOUL AIR SF STEP FEED C13 FINAL SITE PLAN FBP FILTER BYPASS SPD SUMP PUMP DISCHARGE EFFLUENT PUMPING STATION FE FINAL EFFLUENT SR SEPTAGE RETURN FM FORCE MAIN SS SANITARY SEWER CD1 STANDARD DETAILS E580 POWER PLANS FTE FILTERED EFFLUENT SW SEAL WATER CD2 STANDARD DETAILS E581 MCC-16A DEMOLITION SINGLE LINE DIAGRAM AND ELEVATION G NATURAL GAS TS THICKENED SLUDGE E582 MCC-16A PROPOSED SINGLE LINE DIAGRAM AND ELEVATION GTO GRAVITY THICKENER OVERFLOW V VENT E583 ELEMENTARY CONTROL SCHEMATIC AND CONDUIT AND WIRE SCHEDULE ELECTRICAL HOCL SODIUM HYPOCHLORITE WAS WASTE ACTIVATED SLUDGE HWR HOT WATER RETURN WCS WATER CANNON SUPPLY GENERAL SOLIDS HANDLING BUILDING HWS HOT WATER SUPPLY ME METHANOL PIPE MATERIALS E1 LEGEND AND SYMBOLS, GENERAL NOTES AND ABBREVIATIONS E640 POWER PLANS ML MIXED LIQUOR CI CAST IRON E3 OVERALL DEMOLITION SINGLE LINE DIAGRAM E641 MCC-18A DEMOLITION SINGLE LINE DIAGRAM AND ELEVATION MLW MIXED LIQUOR WASTE DI DUCTILE IRON E4 OVERALL PROPOSED SINGLE LINE DIAGRAM E642 EXISTING MSP-18A DEMOLITION SINGLE LINE DIAGRAM AND ELEVATION MS METAL SALTS RCP REINFORCED CONCRETE PIPE E5 DUCTBANK AND CONDUIT AND WIRE SCHEDULES E643 MCC-18A PROPOSED SINGLE LINE DIAGRAM AND ELEVATION MUW MAKEUP WATER PVC POLYVINYL CHLORIDE SITE WORK SWITCHGEAR BUILDING E010 OVERALL SITE PLAN E011 PARTIAL SITE PLAN E900 E900 - POWER PLAN E012 PARTIAL SITE PLAN E013 PARTIAL SITE PLAN E014 PARTIAL SITE PLAN ED1 STANDARD DETAILS E015 PARTIAL SITE PLAN ED2 STANDARD DETAILS E016 PARTIAL SITE PLAN E017 PARTIAL SITE PLAN E018 PARTIAL SITE PLAN MAINTENANCE BUILDING E100 POWER PLANS E101 MCC-8A DEMOLITION SINGLE LINE DIAGRAMS AND ELEVATIONS E102 MCC-8A PROPOSED SINGLE LINE DIAGRAM AND ELEVATION E103 ELEMENTARY CONTROL SCHEMATIC AND CONDUIT AND WIRE SCHEDULES GRIT REMOVAL BUILDING E140 POWER PLANS E141 MCC-4A DEMOLITION SINGLE LINE DIAGRAM AND ELEVATION E142 MCC-4A PROPOSED SINGLE LINE DIAGRAM AND ELEVATION E143 ELEMENTARY CONTROL SCHEMATICS E144 RISER DIGRAM AND CONDUIT AND WIRE SCHEDULES PROJECT ENGINEER: J. NEWBOLD Digitally signed by RIVANNA WATER & SEWER AUTHORITY DATE: DE EMBER 2021 Michael Santowasso Michael Santowasso Date:2021.12.02Haze CHARLOTTESVILLE� VIRGINA DESIGNED BY: A. MARCH HAZENNO.: 31430-006 PERMITTING SIGNATURE SET 08:18:59-05'00' _ HAZEN AND SAWYER 4011 WESTCHASE BOULEVARD, SUITE 500 RALEIGH, NORTH CAROLINA 27607 INDEX AND ABBREVIATIONS DRAWN BY: A. MARCH CONTRACT NO. 1 5 WPO SIGNATURE SET 12/01/2021 JN MOORES CREEK AWRRF ELECTRICAL INFRASTRUCTURE IMPROVEMENTS 4 WPO/LOR RESUBMITTAL #1 11/10/2021 JN CHECKED BY: M. SANTOWASSO DRAWER: G1 3 WPO/LOR SUBMITTAL 9/21/2021 JN 2 95% DESIGN SUBMITTAL 9/14/2021 JN IF THIS BAR DOES NOT 0 1/2" 1„ MEASURE 1" THEN DRAWING 1 50% DESIGN SUBMITTAL 4/6/2021 JN REV ISSUED FOR DATE BY IS NOT TO FULL SCALE LICENSE NO.: C-0381 GENERAL NOTES: 1. IN ADDITION TO SURVEY (SEE C10), SITE INFORMATION HAS BEEN TAKEN FROM HAZEN AND SAWYER RECORD DRAWINGS FROM PROJECT #31037-039 TITLED "MOORES CREEK WASTEWATER TREATMENT PLANT NUTRIENT REMOVAL IMPROVEMENTS", DATED SEPTEMBER, 2014. 2. HORIZONTAL CONTROL IS REFERENCED TO NAD 83, VIRGINIA SOUTH ZONE, AND VERTICAL CONTROL IS REFERENCED TO NAVD 88. 3. FLOOD PLAIN ELEVATIONS FROM FEDERAL EMERGENCY MANAGEMENT AGENCY (FEMA) FLOOD INSURANCE RATE MAP FIRM PANEL 0289D MAP NUMBER 51003CO289D DATED FEBRUARY 04, 2005 THE PROJECT IS LOCATED IN ZONE X, AREA OF MINIMAL FLOOD HAZARD. 4. CONTRACTOR SHALL VERIFY FIELD CONDITIONS BEFORE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITIES. CONTRACTOR SHALL VERIFY EXISTING ELEVATIONS AND DIMENSIONS WHERE NEW WORK WILL MATCH EXISTING. DISCREPANCIES SHALL BE BROUGHT TO THE ATTENTION OF THE ENGINEER FOR RESOLUTION PRIOR TO THE COMMENCEMENT OF WORK. 5. CONTRACTOR SHALL OBTAIN ALL THE NECESSARY PERMITS FROM THE APPROPRIATE AUTHORITIES, DEPARTMENTS, AND/OR AGENCIES HAVING JURISDICTION PRIOR TO COMMENCING WORK. 6. CONTRACTOR SHALL TAKE CARE TO AVOID DAMAGE TO EXISTING PAVEMENT, TREES, VEGETATION, STRUCTURES, AND UTILITIES THAT ARE NOT INDICATED TO BE DEMOLISHED OR REMOVED. ANY DAMAGE TO EXISTING PAVEMENT, TREES, VEGETATION, STRUCTURES, AND UTILITIES NOT INDICATED TO BE DEMOLISHED OR REMOVED SHALL BE REPAIRED AT THE CONTRACTOR'S EXPENSE. 7. UTILITIES HAVE BEEN PLOTTED FROM AVAILABLE RECORD INFORMATION. IT IS THE CONTRACTOR'S RESPONSIBILITY TO VERIFY THEIR EXACT LOCATION AND TO AVOID DAMAGE TO THEM. THE CONTRACTOR SHALL CONTACT VIRGINIA 811 AT PHONE NUMBER 811 OR 1-800-552-7001 TO REQUEST UNDERGROUND UTILITY LOCATION MARK -OUT AT LEAST THREE (3) WORKING DAYS BUT NO MORE THAN TEN (10) WORKING DAYS PRIOR TO BEGINNING EXCAVATION, INCLUDING SOIL DRILLING. THE CONTRACTOR SHALL ALSO CONTACT AND REQUEST UTILITY LOCATION MARK -OUT FROM BURIED UTILITY OWNERS WITH UTILITIES ON THE PROJECT SITE THAT ARE NOT PARTICIPANTS OF VIRGINIA 811. 8. WHERE PROPOSED WORK IS IN THE VICINITY OF UTILITY POLES, SUCH THAT SUPPORT OF THE POLE(S) WILL BE REQUIRED, THE CONTRACTOR SHALL BE RESPONSIBLE FOR NOTIFYING THE UTILITY OF THE WORK. IT WILL BE THE RESPONSIBILITY OF THE CONTRACTOR TO COORDINATE WITH THE UTILITY FOR SUPPORT OF THE POLE. 9. WHERE OVERHEAD POWER LINES ARE PRESENT, CONTRACTOR MUST CONTACT THE UTILITY PRIOR TO CONSTRUCTION ACTIVITIES TO DETERMINE THE MINIMUM REQUIRED EQUIPMENT CLEARANCE (MEC) DISTANCE BASED UPON LINE STRENGTH. 10. DURING EXCAVATION AND PLACEMENT OF UTILITIES THE CONTRACTOR SHALL COMPLY WITH ALL APPLICABLE SAFETY REGULATIONS AND SHALL SUBMIT TO THE ENGINEER FOR REVIEW SHEET PILING, SHORING AND/OR BRACING DESIGNS AS MAY BE NECESSARY TO COMPLY WITH THESE REGULATIONS. 11. CONTRACTOR SHALL BE SOLELY RESPONSIBLE FOR DESIGN AND INSTALLATION OF ALL EXCAVATION SUPPORT AT LOCATIONS AS MAY BE SUGGESTED ON CONTRACT DRAWINGS OR FOR THEIR OWN CONVENIENCE. CONTRACTOR SHALL SUBMIT ALL NECESSARY CALCULATIONS, DRAWINGS, ETC. PREPARED BY A PROFESSIONAL ENGINEER REGISTERED IN THE COMMONWEALTH OF VIRGINIA AS MAY BE NECESSARY FOR REVIEW BY THE ENGINEER PRIOR TO INSTALLATION. REQUIREMENTS FOR EXCAVATION SUPPORT DESIGN MAY BE FOUND IN SPECIFICATION SECTION 02200 EARTHWORK, SECTION 3.03. 12. GROUNDWATER FROM ALL DEWATERING OPERATIONS SHALL BE DISCHARGED TO AN ENVIRONMENTALLY ACCEPTABLE LOCATION IN ACCORDANCE WITH THE CONTRACT DOCUMENTS, OR AS DIRECTED BY THE ENGINEER. 13. ALL TEMPORARY FACILITIES ARE SUBJECT TO THE SAME HEALTH AND SAFETY REQUIREMENTS AS PERMANENT FACILITIES, AS SPECIFIED IN THE CONTRACT DOCUMENTS AND HEALTH SAFETY PLAN (HASP). 14. THE CONTRACTOR SHALL REMOVE AND DISPOSE OF ALL DEBRIS GENERATED DURING THE PROJECT OFF SITE AT A PROPERLY PERMITTED DISPOSAL FACILITY. SITE INFORMATION / EROSION AND SEDIMENT CONTROL NARRATIVE PROJECT DESCRIPTION: VARIOUS ELECTRICAL IMPROVEMENTS ACROSS MULTIPLE BUILDINGS WITHIN THE MOORES CREEK ADVANCED WATER RESOURCE RECOVERY FACILITY (MCAWRRF). THERE WILL BE ONE AREA OF GROUND DISTURBANCE ACTIVITY TO INSTALL A NEW DUCTBANK. EXISTING SITE CONDITIONS: THE PROJECT IS AT MCAWRRF LOCATED AT 695 MOORES CREEK LANE, CHARLOTTESVILLE VA 22902. THE PROPERTY IS LOCATED IN UNINCORPORATED ALBEMARLE COUNTY. THE PROPOSED DISTURBANCE WILL BE LOCATED ADJACENT TO SECONDARY CLARIFIERS, AND AERATION BASINS. TOPOGRAPHY IN THESE THREE AREAS ARE GENTLY SLOPED ALONG THE EXISTING INFRASTRUCTURE, RANGING IN ELEVATIONS FROM 344 FT TO 380 FT. ALL AREAS BEING BUILT UPON ARE GRASSED AREAS WITH PREVIOUS UNDERGROUND DEVELOPMENT. THE NEAREST BODY OF WATER IS MOORES CREEK, WHICH IS APPROXIMATELY 250 FT DOWNSTREAM FROM THE NEAREST PROJECT AREA. MOORES CREEK ULTIMATELY DISCHARGES TO THE RIVANNA RIVER. ACCORDING TO THE 2016 TMDL REPORT, MOORES CREEK STREAM SEGMENT IS SEVERELY IMPACTED FOR ITS AQUATIC LIFE USE. SEDIMENT WAS SELECTED AS THE MOST PROBABLE STRESSOR. THE PROJECT IS LOCATED IN ZONE X, AREA OF MINIMAL FLOOD HAZARD. THE MCAWRRF PARCEL IS BOUND TO THE SOUTH BY THE 1-64 CORRIDOR. TO THE WEST AND NORTH ARE MULTIPLE OPEN PARCELS, ZONED RURAL AND LIGHT INDUSTRIAL. TO THE NORTHEAST AND EAST ARE TWO ADDITIONAL PARCELS, BOTH OWNED BY RIVANNA WATER AND SEWER AUTHORITY. OFF -SITE AREAS: THERE WILL BE NO OFFSITE DISTURBANCE IN THIS PROJECT SOILS: SOIL TYPES FOUND AT THE MCAWRRF SITE WERE IDENTIFIED BASED ON INFORMATION OBTAINED FROM THE UNITED STATES DEPARTMENT OF AGRICULTURE (USDA), NATURAL RESOURCE CONSERVATION SERVICE (NRCS). THE SITE LIMITS OF DISTURBANCE IS COMPOSED OF ONE SOILS TYPE, RABUN CLAY LOAM, 7 TO 15 PERCENT SLOPES (71C). RABUN CLAY LOAM IS IN HSG B. EROSION AND SEDIMENT CONTROL MEASURES: TEMPORARY MEASURES: • CONSTRUCTION ENTRANCE PER STD 3.02 • SILT FENCE PER STD 3.05 • TEMPORARY SEEDING PER STD 3.31 • GRAVEL CURB INLET SEDIMENT FILTER PER STD 3.07-6 PERMANENT MEASURES: • PERMANENT STABILIZATION: AREAS OF THE SITE THAT WILL NOT BE PAVED WILL BE SEEDED AND MULCHED ACCORDING TO THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK REQUIREMENTS PER STD 3.32. EROSION AND SEDIMENT CONTROL MAINTENANCE NOTES: IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE CHECKED AFTER EACH RAINFALL OR WEEKLY, WHICHEVER IS MORE FREQUENT, AND SHOULD BE CLEANED AND REPAIRED ACCORDING TO THE FOLLOWING SCHEDULE: 1. EROSION AND SEDIMENT CONTROLS WILL BE CHECKED REGULARLY FOR UNDERMINING OR DETERIORATION AND BUILDUP OR CLOGGING WITH SEDIMENT. CORRECTIVE ACTION SHALL BE TAKEN IMMEDIATELY. 2. FREQUENT INSPECTIONS AND CLEANING OF MUD AND DEBRIS FOUND OUTSIDE OF THE LIMITS OF DISTURBANCE IS REQUIRED, ALONG WITH ANY OTHER REMEDIES REQUIRED BY THE COUNTY. 3. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND OF GRASS IS MAINTAINED. AREAS SHALL BE RESEEDED AS NEEDED. TEMPORARY STABILIZATION WILL BE USED AS REQUIRED BY THE COUNTY. LEGEND EROSION AND SEDIMENT CONTROL EXISTING EROSION & SEDIMENTATION CONTROL CONSTRUCTION SEQUENCING 1. CONTRACTOR SHALL OBTAIN PRIOR APPROVAL FROM THE ENGINEER, OWNER, AND REGULATORY AGENCIES FOR DEVIATIONS FROM THE APPROVED EROSION AND SEDIMENT CONTROL PLAN. 2. ALL WORK PERFORMED SHALL BE IN ACCORDANCE WITH THE "VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK" AND CHAPTER 104 (EROSION AND SEDIMENT CONTROL) OF THE VIRGINIA CODE IN ACCORDANCE WITH THE CONTRACT DOCUMENTS. 3. NO CONSTRUCTION OR LAND DISTURBANCE ACTIVITIES SHALL BEGIN UNTIL TEMPORARY SEDIMENT AND EROSION CONTROL MEASURES HAVE BEEN INSTALLED. CONTRACTOR SHALL INSTALL SILT FENCE AS SHOWN ON THE DRAWING FOR TEMPORARY PERIMETER EROSION CONTROL. 4. FOLLOWING THE INSTALLATION OF ALL TEMPORARY EROSION AND SEDIMENTATION CONTROL MEASURES,THE CONTRACTOR MAY BEGIN EARTHWORK OPERATIONS. ALL STRIPPED TOPSOIL SHALL BE STOCKPILED IN THE DESIGNATED STOCKPILE/LAYDOWN AREAS AND TEMPORARY SEEDING MEASURES SHOULD BE EMPLOYED THROUGHOUT CONSTRUCTION. STOCKPILE LOCATIONS SHALL REMAIN MORE THAN 50 FT FROM STORM DRAINS AND/OR STREAMS. UNLESS NO REASONABLE ALTERNATIVES ARE AVAILABLE, EARTHWORK, STORAGE OF MATERIAL, ETC IS PROHIBITED OUTSIDE THE DESIGNATED LIMITS OF DISTURBANCE. 5. SOIL STOCKPILE AND LAYDOWN AREAS SHALL HAVE PERIMETER SEDIMENT CONTROL MEASURES AND TEMPORARY OR PERMANENT STABILIZATION MEASURES INSTALLED AS SOON AS POSSIBLE AND AT COMPLETION OF STOCKPILING AND LAYDOWN ACTIVITIES. STOCKPILE SIDE SLOPES SHALL NOT EXCEED 3H : 1V UNLESS APPROVED BY ENGINEER. TOP OF STOCKPILE SHALL BE GRADED WITH A MINIMUM 5% SLOPE TO INSURE PROPER DRAINAGE. 6. CONTRACTOR MAY USE TEMPORARY STOCKPILE/ LAYDOWN AREA AS SHOWN ON THE PLANS FOR SOIL STOCKPILING. IF ADDITIONAL STORAGE AREA IS REQUIRED THE CONTRACTOR IS RESPONSIBLE FOR IDENTIFYING AN OFFSITE LOCATION AND TRANSPORTATION REQUIREMENTS TO AND FROM THE OFFSITE STOCKPILE LOCATION. ALL EXCESS OR UNSUITABLE MATERIAL SHALL BE DISPOSED OF AT A PERMITTED DISPOSAL SITE. THE CONTRACTOR SHALL OBTAIN ALL NECESSARY PERMITS FOR OFF -SITE DISPOSAL. 7. ALL POINTS OF CONSTRUCTION INGRESS AND EGRESS SHALL BE PROTECTED TO PREVENT THE DEPOSITION OF MATERIALS ONTO TRAVERSED OFFSITE ROADWAYS. IF MATERIAL IS TRACKED ONTO OFFSITE ROADWAYS, IT SHALL BE REMOVED IMMEDIATELY. DO NOT UTILIZE A WATER HOSE TO CLEAN ROADS UNLESS THE RUNOFF IS DIRECTED TO A PROPERLY DESIGNED AND FUNCTIONING SEDIMENT CONTROL DEVICE. PROPER PRECAUTIONS SHALL BE TAKEN TO ENSURE MATERIALS DEPOSITED ONTO OFFSITE ROADWAYS ARE REMOVED SO THEY DO NOT ENTER YARD INLETS, CATCH BASINS, SEWERS, WETLANDS, SURFACE WATER BODIES, OR ROADSIDE SWALES. 8. WHERE CONCRETE EQUIPMENT WASHING IS REQUIRED, THIS MUST BE DONE IN AN APPROVED "CONCRETE CONTAINMENT AREA". CONTRACTOR SHALL NOT DISCHARGE ANY CONCRETE WASHOUT WATER INTO SEWERS, SURFACE WATER BODIES OR ONTO THE GROUND. ALL WASHOUT WATER MUST BE REMOVED FROM THE SITE(S) DAILY. SEE DETAIL 1/CD-2. 9. ALL DISTURBED AREAS SHALL DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBANCE ACTIVITIES AND UNTIL FINAL STABILIZATION IS ACHIEVED. SEDIMENT -LADEN GROUNDWATER ENCOUNTERED DURING TRENCHING, BORING, OR OTHER ACTIVITIES SHALL BE PUMPED INTO A SEDIMENT TRAPPING DEVICE PRIOR TO BEING DISCHARGED INTO A STREAM, POND, SWALE, OR CATCH BASIN. NO DEWATERING FLOW SHALL BE DISCHARGED DIRECTLY TO GRADE WITHOUT TREATMENT. 10. TEMPORARY SEEDING MEASURES SHALL BE EMPLOYED THROUGHOUT THE DURATION OF CONSTRUCTION ACTIVITIES ON ANY AREA WHICH WILL REMAIN UNDISTURBED FOR MORE THAN 7 WORKING DAYS OR 14 CALENDAR DAYS, WHICHEVER IS SHORTER. ALL SLOPES STEEPER THAN 3H:1 V SHALL BE PLANTED OR OTHERWISE PROVIDED WITH TEMPORARY OR PERMANENT GROUND COVER, DEVICES, OR STRUCTURES SUFFICIENT TO RESTRAIN EROSION WITHIN 7 CALENDAR DAYS. ALL OTHER SLOPES OF 3H:1 V OR FLATTER, EXCEPT THOSE GREATER THAN 50 FT IN LENGTH, SHALL BE PROVIDED WITH TEMPORARY OR PERMANENT GROUND COVER, DEVICES, OR OTHER STRUCTURES SUFFICIENT TO RESTRAIN EROSION WITHIN 14 CALENDAR DAYS. 11. PERMANENT SEEDING SHALL BE INSTALLED, IN THE PROPER PLANTING SEASON, FOR ALL AREAS REACHING FINAL GRADE WHICH WILL NOT BE DISTURBED AGAIN. IF PLANTING SEASON IS NOT APPROPRIATE FOR PERMANENT SEEDING CONTRACTOR SHALL RE -SEED AREA WITH PERMANENT SEEDING WHEN SEASON ALLOWS. 12. UPON COMPLETION OF FINAL GRADING, PERMANENT STRUCTURAL OR VEGETATIVE STABILIZATION SHALL BE ESTABLISHED. 13. ALL EROSION AND SEDIMENTATION CONTROL MEASURES SHALL BE MAINTAINED THROUGHOUT THE DURATION OF CONSTRUCTION ACTIVITIES AND THE SITE HAS BEEN PERMANENTLY STABILIZED WITH STRUCTURAL AND/OR PERMANENT VEGETATIVE MEASURES. 14. CONTRACTOR SHALL PERFORM SITE INSPECTION AND MAINTENANCE ONCE EVERY5 BUSINESS DAYS AND WITHIN 24 HOURS AFTER MEASURABLE STORM EVENT. 15. ONCE PERMANENT STABILIZATION HAS OCCURRED, TEMPORARY SEDIMENT CONTROL MEASURES MAY BE REMOVED UPON APPROVAL FROM THE ENGINEER AND ALBEMARLE COUNTY. ANY AREAS DISTURBED BY THE REMOVAL OF EROSION CONTROL MEASURES SHALL BE RETURNED TO THE ORIGINAL, OR BETTER, CONDITION BEFORE SEEDED, MULCHED, AND FERTILIZED. ABBREVIATIONS OVERALL EROSION & SEDIMENTATION CONTROL NOTES 1. UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND THE VIRGINIA EROSION AND SEDIMENT CONTROL REGULATIONS 9VAC25-840. 2. 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. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO CONSTRUCTION ACTIVITIES. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. 5. THE CONTRACTOR IS ENCOURAGED TO PHASE CONSTRUCTION TO MINIMIZE EXPOSED SOIL AREAS THROUGHOUT THE PROJECT. 6. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. 7. THE CONTRACTOR SHALL FURNISH AND INSTALL ALL NECESSARY EROSION CONTROL MEASURES WHETHER OR NOT SHOWN ON THE PLANS TO PROTECT ADJACENT CREEKS, RIVERS, ROADWAYS, ETC. FROM SILTATION AND EROSION. 8. 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. 9. EACH EROSION AND SEDIMENTATION CONTROL MEASURE SHALL BE INSPECTED AT LEAST ONCE EVERY FOUR BUSINESS DAYS OR AT LEAST ONCE EVERY FIVE BUSINESS DAYS AND NO LATER THAN 24 HOURS FOLLOWING A MEASURABLE STORM EVENT. IN THE EVENT THAT A MEASURABLE STORM EVENT OCCURS WHEN THERE ARE MORE THAN 48 HOURS BETWEEN BUSINESS DAYS, THE INSPECTION SHALL BE CONDUCTED ON THE NEXT BUSINESS DAY. 10. ALL DUCTBANK WORK SHALL BE INSTALLED IN ACCORDANCE WITH STANDARD CONSTRUCTION TECHNIQUES. ONLY THE LENGTH OF TRENCH IN WHICH PIPE CAN BE INSTALLED IN ONE DAYS TIME SHALL BE OPEN AT ANY TIME, WITH SPOIL MATERIAL PLACED ON THE UPHILL SIDE OF THE TRENCH. DUCTBANK CONDUITS SHALL BE CAPPED AT THE END OF EACH WORK DAY TO PREVENT SEDIMENT FROM ENTERING PIPE. TRENCH SHALL BE BACKFILLED AT END OF EACH WORK DAY AND DISTURBED AREA SEEDED WITH TEMPORARY SEEDING MEASURES, AS APPROPRIATE. 11. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 12. ALL EROSION CONTROL MEASURES SHALL REMAIN IN PLACE UNTIL CONSTRUCTION IS COMPLETE, PERMANENT VEGETATION IS ESTABLISHED ON ALL DISTURBED AREAS, AND APPROVAL BY THE ENGINEER IS GIVEN. AREAS WHERE EROSION AND SEDIMENTATION CONTROL MEASURES ARE REMOVED SHALL BE REGRADED AND SEEDED TO MATCH ORIGINAL SITE CONDITIONS. - LOD- LOD- LIMITS OF DISTURBANCE x FENCE - - - - - - YARD PIPING NEW DEMO EXISTING EDP EDGE OF PAVEMENT G GAS ® IP INLET PROTECTION CONCRETE SIDEWALK ------ STORM DRAIN LINE LOD LIMITS OF DISTURBANCE SS SANITARY SEWER ® O BUILDING/STRUCTURE O MANHOLE OCE GRAVEL CONSTRUCTION ENTRANCE � 300 - CONTOUR OHE OVERHEAD ELECTRIC IN WATER GRAVEL ROAD 302.00 X SPOT ELEVATION YARD INLET FOC FIBER OPTIC CABLE R PROPERTY LINE SF SF SILT FENCE CONCRETE CURB PROPERTY LINE =jw= CURB INLET LP LIGHT POLE CENTER LINE AND GUTTER TS TEMPORARY SEEDING --- EASEMENT FLARED END SECTION UGE UNDERGROUND ° a �d .7 a o. A e. - CONCRETE PAD/PAVING PS PERMANENT SEEDING i v u V APPROXIMATE WOODLINE (F.E.S.) ELECTRIC -Q- POWER POLE PP POWER POLE DC DUST CONTROL O BOLLARD PROJECT ENGINEER: J. NEWBOLD DESIGNED BY: A. MARCH DRAWN BY: A. MARCH 5 WPO SIGNATURE SET 12/01/2021 JN 4 WPO/LOR RESUBMITTAL #1 11/10/2021 JN CHECKED BY: M. SANTOWASSO 3 WPO/LOR SUBMITTAL 9/21/2021 JN 2 95% DESIGN SUBMITTAL 9/14/2021 JN IF THIS BAR DOES NOT 0 1/2" 1" MEASURE 1" THEN DRAWING IS NOT TO FULL SCALE 1 50% DESIGN SUBMITTAL 4/6/2021 JN REV ISSUED FOR DATE BY Digitally signed by Michael Michael Santowasso Santowasso Date: 2021.12.02 PERMITTING 08:19:12-05'00' Hazen SIGNATURE SET - HAZEN AND SAWYER 4011 WESTCHASE BOULEVARD, SUITE 500 RALEIGH, NORTH CAROLINA 27607 LICENSE NO.: C-0381 RIVANNA WATER & SEWER AUTHORITY CHARLOTTESVILLE, VIRGINA MOORES CREEK AWRRF ELECTRICAL INFRASTRUCTURE IMPROVEMENTS CIVIL NOTES AND LEGEND DATE: DECEMBER 2021 HAZEN NO.: 31430-006 CONTRACT NO.: 1 DRAWING NUMBER: C01 9VAC25-840-40. MINIMUM STANDARDS. SITE SEEDING SCHEDULE AND NOTES A VESCP MUST BE CONSISTENT WITH THE FOLLOWING CRITERIA, TECHNIQUES AND METHODS: 1. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN 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 14 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCK PILES 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. 3. A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMANENTLY STABILIZED. PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT IS UNIFORM, MATURE ENOUGH TO SURVIVE AND WILL INHIBIT EROSION. 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. 5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. 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. 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. 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. 9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED. 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. 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. 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. 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. 14. ALL APPLICABLE FEDERAL, STATE AND LOCAL REQUIREMENTS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET. 15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED. 16. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION TO OTHER APPLICABLE CRITERIA: a. NO MORE THAN 300 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME. b. EXCAVATED 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. d. 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 THIS CHAPTER. f. APPLICABLE SAFETY REQUIREMENTS SHALL BE COMPLIED WITH 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. 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 VESCP 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. 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. STREAM RESTORATION AND RELOCATION PROJECTS THAT INCORPORATE NATURAL CHANNEL DESIGN CONCEPTS ARE NOT MAN-MADE CHANNELS AND SHALL BE EXEMPT FROM ANY FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS: 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 MAN-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, THE BED, OR THE BANKS; OR (2) IMPROVE THE PIPE OR PIPE SYSTEM TO A CONDITION WHERE THE TEN-YEAR STORM IS CONTAINED WITHIN THE APPURTENANCES; (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 INCREASE WHEN RUNOFF OUTFALLS INTO A MAN-MADE CHANNEL; OR (4) PROVIDE A COMBINATION OF CHANNEL IMPROVEMENT, STORMWATER DETENTION OR OTHER MEASURES WHICH IS SATISFACTORY TO THE VESCP AUTHORITY TO PREVENT DOWNSTREAM EROSION. d. THE APPLICANT SHALL PROVIDE EVIDENCE OF PERMISSION TO MAKE THEIMPROVEMENTS. e. ALL HYDROLOGIC ANALYSES SHALL BE BASED ON THE EXISTING WATERSHED CHARACTERISTICS AND THE ULTIMATE DEVELOPMENT CONDITION OF THE SUBJECT PROJECT. f. IF THE APPLICANT CHOOSES AN OPTION THAT INCLUDES STORMWATER DETENTION, HE SHALL OBTAIN APPROVAL FROM THE VESCP 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. 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. I. ANY PLAN APPROVED PRIOR TO JULY 1, 2014, THAT PROVIDES FOR STORMWATER MANAGEMENT THAT ADDRESSES ANY FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS SHALL SATISFY THE FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS IF THE PRACTICES ARE DESIGNED TO (I) DETAIN THE WATER QUALITY VOLUME AND TO RELEASE IT OVER 48 HOURS; (II) DETAIN AND RELEASE OVER A 24-HOUR PERIOD THE EXPECTED RAINFALL RESULTING FROM THE ONE YEAR, 24-HOUR STORM; AND (III) REDUCE THE ALLOWABLE PEAK FLOW RATE RESULTING FROM THE 1.5, 2, AND 10-YEAR, 24-HOUR STORMS TO A LEVEL THAT IS LESS THAN OR EQUAL TO THE PEAK FLOW RATE FROM THE SITE ASSUMING IT WAS IN A GOOD FORESTED CONDITION, ACHIEVED THROUGH MULTIPLICATION OF THE FORESTED PEAK FLOW RATE BY A REDUCTION FACTOR THAT IS EQUAL TO THE RUNOFF VOLUME FROM THE SITE WHEN IT WAS IN A GOOD FORESTED CONDITION DIVIDED BY THE RUNOFF VOLUME FROM THE SITE IN ITS PROPOSED CONDITION, AND SHALL BE EXEMPT FROM ANY FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS AS DEFINED IN ANY REGULATIONS PROMULGATED PURSUANT TO § 62.1-44.15:54 OR 62.1-44.15:65 OF THE ACT. M. FOR PLANS APPROVED ON AND AFTER JULY 1, 2014, THE FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS OF § 62.1-44.15:52 A OF THE ACT AND THIS SUBSECTION SHALL BE SATISFIED BY COMPLIANCE WITH WATER QUANTITY REQUIREMENTS IN THE STORMWATER MANAGEMENT ACT (§ 62.1-44.15:24 ET SEQ. OF THE CODE OF VIRGINIA) AND ATTENDANT REGULATIONS, UNLESS SUCH LAND -DISTURBING ACTIVITIES ARE IN ACCORDANCE WITH 9VAC25-870-48 OF THE VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP) REGULATIONS. n. COMPLIANCE WITH THE WATER QUANTITY MINIMUM STANDARDS SET OUT IN 9VAC25-870-66 OF THE VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP) REGULATIONS SHALL BE DEEMED TO SATISFY THE REQUIREMENTS OF SUBDIVISION 19 OF THIS SUBSECTION. STATUTORY AUTHORITY § 62.1-44.15:52 OF THE CODE OF VIRGINIA. HISTORICAL NOTES FORMER 4VAC50-30-40, DERIVED FROM VR625-02-00 § 4; EFF SEPTEMBER 13, 1990; AMENDED, VIRGINIA REGISTER VOLUME 11, ISSUE 11, EFF. MARCH 22, 1995; VOLUME 29, ISSUE 4, EFF. NOVEMBER 21, 2012; AMENDED AND RENUMBERED, VIRGINIA REGISTER VOLUME 30, ISSUE 2, EFF. OCTOBER 23, 2013. APPLICATION RATES IN POUNDS/ACRE SEED PLANTING STRAW MIXTURE SEASON SEED LIME' FERTILIZER** MULCH"' COMMENTS PREFERED SEASONS: P FEB 15 - APR 30 200 4000 1000 4000 SEPT 1 - SEPT 30 SEPT 1 - OCT 31 FEB 15 - MARCH 30 OVERSEED WITH TYPE P TW SEPT 1 - FEB 15 100 ` 600 4000 SEED MIXTURE DURING NEXT PLANTING SEASON OVERSEED WITH TYPE P TSP FEB 16-APR 30 100 600 4000 SEED MIXTURE DURING NEXT PLANTING SEASON OVERSEED WITH TYPE P TSU MAY 1 - AUG 31 50 600 4000 SEED MIXTURE DURING NEXT PLANTING SEASON P - 190 LB/AC KENTUCKY 31 TALL FESCUE 5 LB/AC PERENNIAL RYEGRASS 5 LB/AC KENTUCKY BLUEGRASS TW - 50 LB/AC ANNUAL RYEGRASS 50 LB/AC CEREAL (WINTER) RYE TSP - 100 LB/AC ANNUAL RYEGRASS TSU - 50 LB/AC GERMAN MILLET SEED MIXTURES TO BE USED ON THE PROJECT FOR PERMANENT (P), TEMPORARY WINTER (TW), TEMPORARY SPRING (TSP) AND TEMPORARY SUMMER (TSU) SHALL BE AS FOLLOWS (ACCEPTABLE SUBSTITUTES PER SECTION 3,31 AND 3.32 OF THE VA EROSION AND SEDIMENT CONTROL HANDBOOK MUST BE APPROVED BY ENGINEER) 1. SCARIFY 2" DEPTH OF SUBGRADE PRIOR TO PLACING TOPSOIL. 2. TOPSOIL SHALL BE SPREAD AT 4" INCH CONSOLIDATED DEPTH 3. APPLY SEED UNIFORMLY WITH A CYCLONE SEEDER, DROP -TYPE SPREADER, OF HYDROSEEDER ON A FIRM, FRIABLE SEEDBED. IN FINE SOILS, SEEDS SHOULD BE DRILLED 1/4 - 1/2 INCH. IN COARSE, SANDY SOILS, SEEDS SHALL BE PLANTED NO DEEPER THAN 3/4 INCH. COVER BROADCAST SEED BY LIGHTLY RAKING OR CHAIN DRAGGING; THEN FIRM SURFACE WITH A ROLLER OR CULTIPACKER TO PROVIDE GOOD SEED CONTACT. 4. ON CUT AND FILL SLOPES 2:1 OR STEEPER ADD 20 LBS/AC OF WEEPING LLVEGRASS TO THE P SEED MIXTURE IN THE SPRING AND ADD 20 LBS/AC ANNUAL RYEGRASS IN FALL AND WINTER. ' LIME SHALL BE APPLIED AT A MINIMUM OF 2 TONS PER ACRE WITH 3 TONS PER ACRE IN CLAY SOILS. APPLICATION RATES AND/OR CHEMICAL ANALYSIS SHALL BE CONFIRMED OR ESTABLISHED BY SOIL TEST. TACK MULCH BY APPLYING AT 0.10 GAL/YD2. RATE REQUIREMENTS FOR TEMPORARY SEEDING SHALL BE BASED UPON A pH TEST AS SUCH: <4.2 3 TONS/ACRE 4.2-5.2 2 TONS/ACRE 5.2-6.0 1 TON/ACRE ** FERTILIZER SHALL BE 10-20-10 MIX OR EQUIVALENT NUTRIENTS. ALTERNATIVE METHODS OF MULCHING MAY BE UTILIZED. ALTERNATIVE METHODS SHALL CONFORM TO REQUIREMENTS IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. PROJECT ENGINEER: J. NEWBOLD Digitally by ichaell Michael Santowasso Santowasso Date: 2021.12.02 PERMITTING 08:19:26-05'00' SIGNATURE SET ze — HAZEN AND SAWYER 4011 WESTCHASE BOULEVARD, SUITE 500 RALEIGH, NORTH CAROLINA 27607 LICENSE NO.: C-0381 RIVANNA WATER & SEWER AUTHORITY CHARLOTTESVILLE, VIRGINA CIVIL VIRGINIA MINIMUM STANDARDS DATE: DECEMBER 2021 DESIGNED BY: A. MARCH HAZEN No.: 31430-006 DRAWN BY: A. MARCH CONTRACT NO.: 1 [REV WPO SIGNATURE SET 12/01/2021 JN MOORES CREEK AWRRF ELECTRICAL INFRASTRUCTURE IMPROVEMENTS WPO/LOR RESUBMITTAL #1 11/10/2021 JN CHECKED BY: M. SANTOWASSO DRAWING NUMBER: CO2 WPO/LOR SUBMITTAL 9/21/2021 JN 95% DESIGN SUBMITTAL 9/14/2021 JN IF THIS BAR DOES NOT 0 1/2" 1" MEASURE 1" THEN DRAWING IS NOT TO FULL SCALE 50% DESIGN SUBMITTAL 4/6/2021 JN ISSUED FOR DATE BY MAIN PLANT ENTRANCE 11101 1} 0 C \ / MAIN PROPERTY LINE, TYP. �I CONTROL , — BUILDING MCAWRRF PROPERTY LINE / MOORES CREEK FILTER / \ BUILDING 100 YEAR FLOODPLAIN // I x.•. ,�'� { 100'STREAM BUFFER \ / LIMITS OF DISTURBANCE \ �d BM1 ' -� 700vR . _- LIMITS OF GROUND SURVEY 00 1p0yR HOLDING POND 2 HOLDING POND PUMP STATION, SEE E190 /J II ...� 100YR l -l\'- pYR � .. 100YR \ 10°6L _ SECONDARYi CLARIFIER 2 0� SECONDARY, • CLARIFIER 1 _ ' SECONDARY •4 BM2 CLARIFIER 3 • low • \ - ��0� .00 0 f EQUALIZATION BASINS .ti ADMINISTRATION BUILDING PRIMARY CLARIFIERS, SEE E200 BLOWER BUILDING, SEE E380 MAINTENANCE SHOP BUILDING, SEE E100 PLAN SCALE: 1" = 150' 0 0 RIVANNA PUMP STATION — k� i �0 yQ- o° p / J i i --------------- EFFLUENT PUMPING STATION, SEE E580 SOLIDS HANDLING BUILDING, SEE E640 GRIT REMOVAL BUILDING. SEE E140 PROJECT SITE TABLE OWNER: RIVANNA WATER & SEWER AUTHORITY COUNTY: ALBEMARLE STATE: VIRGINIA ENGINEER: HAZEN AND SAWYER, 4011 WESTCHASE BLVD. SUITE 500 RALEIGH, NC 27607 PROJECT: ELECTRICAL INFRASTRUCTURE IMPROVEMENTS PROJECT #: 31430-006 SURVEY: DRAPER ADEN ASSOCIATES 110 AVON STREET CHARLOTTESVILLE, VA 22902 (434)295-2105 DATE: JANUARY 15, 2021 SURVEY NO. 19060494-020503 DATUM: HORIZ: NAD-83 VIRGINIA SOUTH ZONE VERT: NAVD-88 BENCHMARKS (SHOWN ON C11): BM1 BM2 N:3893827.9960 N:3893939.2910 E:11493412.6220 E:11493955.3390 ELEV:351.85 ELEV:359.62' 100 YEAR FLOODPLAIN ELEVATION: 324.00' REFERENCE: FEMA MAP # 51003CO289D DATED FEBRUARY 4, 2005 LIMITS OF DISTURBANCE: 19,000 SF PROJECT ENGINEER: J. NEWBOLD Digitally signed by Michael Michael Santowasso Santowasso Date:2021.12.02a PERMITTING 08:19:39-05'00' SIGNATURE SET e _ HAZEN AND SAWYER 4011 WESTCHASE BOULEVARD, SUITE 500 RALEIGH, NORTH CAROLINA27607 LICENSE NO.: C-0381 RIVANNA WATER & SEWER AUTHORITY CHARLOTTESVILLE, VIRGINA SITE CIVIL OVERALL SITE PLAN DATE: DECEMBER 2021 DESIGNED BY: A. MARCH HAZEN NO.: 31430-006 DRAWN BY: A. MARCH CONTRACT NO.: 1 5 WPOSIGESUBMINATURE 11/1 /2021 JN MOORES CREEK AWRRF ELECTRICAL INFRASTRUCTURE IMPROVEMENTS 4 TALSET WPO/LORRESUBMITTAL#1 11/10/2021 JN CHECKED BY: M. SANTOWASSO DRAWING NUMBER: C10 3 WPO/LORSUBMITTAL 9/21/2021 JN 2 95% DESIGN SUBMITTAL 9/14/2021 JN IF THIS BAR DOES NOT 0 1/2"' 1" MEASURE 1" THEN DRAWING IS NOT TO FULL SCALE 1 50% DESIGN SUBMITTAL 4/6/2021 JN REV ISSUED FOR DATE BY BENCHMARK 1 CHISELED SQUARE ON LIGHT POLE 48 ELEV: 351.85 AEATION BASIN No. 1 I c/w AEATION BASIN No. 2 I C/w AEATION BASIN No. 3 AEATION BASIN No. 4 c/w —a01 —001 --001 —001 —0ol —001 —001 LIMITS OF GROUND SURVEY 0 I 0 O LIMITS OF DISTURBANCE, TYP. Io o 0 J ELECTRICAL 0 DISTRIBUTION BUILDING o 0 0 35L STANDBY POWER GENERATOR 353 i O o 0 � o DEMOLISH CURB AND GUTTER, l 0 9 I y DEMOLISH ASPHALT PAVEMENT, SEE NOTE 1 M 0 O O LLOD— LOD— �4 ... a .. PROJECT ENGINEER: J. NEWBOLD DESIGNED BY: A. MARCH DRAWN BY: A. MARCH 5 WPO SIGNATURE SET 12/01/2021 JN 4 WPO/LOR RESUBMITTAL #1 11/10/2021 JN CHECKED BY: M. SANTOWASSO 3 WPO/LOR SUBMITTAL 9/21/2021 JN 2 95% DESIGN SUBMITTAL 9/14/2021 JN IF THIS BAR DOES NOT 0 1/2" 1" MEASURE 1" THEN DRAWING IS NOT TO FULL SCALE 1 50% DESIGN SUBMITTAL 4/6/2021 JN REV ISSUED FOR DATE BY MOORES CREEK LN (PRIVATE) tD — / O a Digitally signed by Michael Santowasso Michael Santowasso Date: 2021.12.02 08:19:53-05'00' PERMITTING Haze SIGNATURE SET - HAZEN AND SAWYER 4011 WESTCHASE BOULEVARD, SUITE 500 RALEIGH, NORTH CAROLINA 27607 LICENSE NO.: C-0381 RIVANNA WATER & SEWER AUTHORITY CHARLOTTESVILLE, VIRGINA MOORES CREEK AWRRF ELECTRICAL INFRASTRUCTURE IMPROVEMENTS NOTES. 1. CONTRACTOR SHALL DEMOLISH ASPHALT TO ENSURE ONE LANE OF MOORES CREEK LANE IS ACCESSIBLE TO PLANT STAFF AT ALL TIMES. SITE CIVIL EXISITNG CONDITIONS AND DEMOLITION PLAN ON LIGHT POLE 58 ELEV: 359.62 SECONDARY CLARIFIER 1 PRIMARY CLARIFIER 2 DATE: DECEMBER 2021 HAZEN NO.: 31430-006 CONTRACT NO.: 1 DRAWING NUMBER: C11 I I I i r-- ---------------}—= TI UGE — - IGE C/W C/w PROJECT ENGINEER: DESIGNED BY: II 1 I ---i----I� a I 1 I LIMITS OF GROUND SURVEY I 1 I I DOMINION ENERGY UTILITY TRANSFORMER I I 1 1 I I I I I I I I I I I I I I UTILITY METERING PEDESTAL I I I I I I I AEATION BASIN No. 1 AEATION BASIN No. 2 AEATION BASIN No. 3 AEATION BASIN No. 4 A. MARCH DRAWN BY: A. MARCH 5 WPO SIGNATURE SET 12/01/2021 JN 4 WPO/LOR RESUBMITTAL #1 11/10/2021 JN CHECKED BY: M. SANTOWASSO 3 WPO/LOR SUBMITTAL 9/21/2021 JN 2 95% DESIGN SUBMITTAL 9/14/2021 JN IF THIS BAR DOES NOT 0 1/2" 1" MEASURE 1" THEN DRAWING IS NOT TO FULL SCALE 1 50% DESIGN SUBMITTAL 4/6/2021 JN REV ISSUED FOR DATE BY PERMITTING SIGNATURE SET Digitally signed by Michael Santowasso Michael Santowasso Date: 2021.12.02 08:20:08-05'00' SECONDARY CLARIFIER 3 HAZEN AND SAWYER 4011 WESTCHASE BOULEVARD, SUITE 500 RALEIGH, NORTH CAROLINA 27607 LICENSE NO.: C-0381 RIVANNA WATER & SEWER AUTHORITY CHARLOTTESVILLE, VIRGINA MOORES CREEK AWRRF ELECTRICAL INFRASTRUCTURE IMPROVEMENTS J ------- J��---_ -- _—_—_— �48' PE --- SITE CIVIL EXISTING YARD PIPING PLAN SECONDARY CLARIFIER 1 �__=====2?,' W,S/DATR DS� TS/D _ 66 F A//ATR ------- AJ " i i %GCL/DATR =------8. 8' HWS/tA Q —=24�tCdP� ------ 4 L----- 2 G/bATR -- ---------- C/w DATE: DECEMBER 2021 HAZEN NO. CONTRACT NO.: DRAWING NUMBER: 31430-006 1 C12 r3 x J Y Q �a v L7 m rn U 2 w a N a " CD w N � M w rn a w o x F 0 i a SILT FENCE C-31-0400 345 STABILIZED OUTLET FOR SILT FENCE - C-31-0403 546 MATCH EXISTING PAVEMENT C-32-0556 „hN Z I ASPHALT PAVEMENT C-32-0551 352 5- CURB INLET PROTECTION, TYP. 354 - CC-31- III 355 t r 359 --001 LOD- a I - a.�_ ---- ; I. °- r O H---- J-'---------- I - - - " Z < p FUTURE 3 14 o w I AUXILIARY FUEL <.' v~i w I TANK AREA a (D .. I II o I I4 I a I - h O ` \ LOD- LOD- -0°1 -r- 354- .. - - e as 4. . 4 i G .' 4 v v G 4' 4 C/W CONTRACTOR LAYDOWN/STOCI, CONCRETE WASHOUT PROPOSED PAD -MOUNTED SWITCHGEAR BUILDING, SEE NOTE 2 S-03-0508 ELECTRICAL MANHOLE, TYP CURB AND GUTTER, TYP. C-32-0530 TEMPORARY GRAVEL CONSTRUCTION ENTRANCE/EXIT C-31-0490 ELECTRICAL DUCTBANK, TYP. E-33-0101 C-01-0106 UP o to LD M O 400 I o a' . , 4 .�IIIIIII "?:a YRttlfl SCALE: 1" = 20' re m 0g Mg v PUN ALE: 1" = 20' VRRM COMPLIANCE Ve9ima F-'Feauc,lyn MCMM Workman, DEQ Vlrainie puntdf peducdon Medad Re -Development Compliance Spreadsheet - Versil 3.0 BhIP °eslgn 5pttlj,'Mioru Lbt: ]013 Drah 51dsa5pees Site Summary Pmlert TRle: MCAWRF Electrical Imprmn ments Daae:4WIS Trull asmiall(in), a3 ...Dliu.. acres" n3T Site land Cover Summary Pre-ReCammir omen land Cover invest AfoW BMW Clines BBells Trial %al Total Forest/Open(acres) 1 0.CO 0.00 D.W OAO Managetl Turt lxres) 0.m 091 O.W Om 0.31 0• lmpery Du.tDaerlarms) Om OAB DW om o.ar M n3T 1W .e.t Fauns DUN CSMs owl, Trials xMTMal Forest/open (acres) 000 000 0.00 0.00 a.m o Managed Tudlarris) 0.00 0.30 ON O.oO 0.30 01 Impervious Cover (arms) 000 Om 000 One Ow ]9 D.3! 100 She To and Land Cover Nutrient Loads Final Post Development pal Mitered pd yrtetl Pre. L. e annbeme,rt vmnv vlmnl 8 RODevMF0111UR D@veingM nl IFLaa,Nrpwnl RaDvando t Pmen Me Ry °.3< D.33 0.95 0.33 TreMmenrvolume(n) 4W 39 125 TP Load llbMl 0.29 Or 0.m 0.27 Total TP wan Reduction RpuIM IDM) 0.0r Final Pant-DevelopmentLwd (Post ReDevelopment B New lmperviom) qp pe0eeelopment Tel wad (tb/,) 2.06 I94 Site Compliance Summary MYlmum%Mauttlon Requlrea Below ]0% reRepewlmm�em Lyaa Total RunONVolume Reductional) 0 Total TP wan Reduction Adlevea 0bM1 am Total TN wad Radiation Achieved 0b/ys) 0.0 R 1.1,g Post. -ferment TP used aM NIVY4 RemasingiPlpatl RatlWbn PbMl faIre: Ytl Drainage Area Summary Pre- ReDevelopmeM Fwl Post-0evelopment Past ReOevelopment TP TPLoadperacm TPLoadperaere Load per ace ba rarer) )Ib/acre/yr) lib/acre/yd 0L74 0.78 1 0.74 2:LA p,A,B DAc DAD DAE Thal Forest/Opantares) Om DOo Om Om Om Om Nlsmand iffsemn) 0.20 am 0.m DAD am 0.30 ImperaaulCgmr(aeer) Om 0.m Om ow 0.m w Toul Ame(surnal IE" 1 0.10 1 Dm 1 Dow 1 080 (L3T Drainage Area Compliance Summary D.A.A D.A0 DAc CAD DAE }oW TP Wad Redured Lahr) I D.00 O.W Dw D.W 0.[a DAO TN wad Reduced db/yrl O.W om Doo O.W O.W aW Runoff Volume and CN Calculations Iyear swim Target Rainfall Event (in) I 3A3 iymrsbem I IN 10year swan S.SL Ocame, Area Fill Dmlmen Are.A Concern... DMIne sAnte Ektlnye AnYD C,ebop A,asaE CM to a D a D nR 0 0 0 0 0 1-yesu rMum pmiod evemaAfeal D.41 MT Dm om on RVwalfenin) Dw3 MT am am om mn,9.nea ax m D o D 2-year rnum pedntl neRe..Inl DO 199 O.m om om Rw> RRIcn) D.w tsa O.m am om as aaimau u to D o D 20,,arraNm Pedotl n RR1a+W 1.70 10 Met Om 0.m funsen) rn. 3.67 D.m Om a.m aaeued 1 62 1 e3 1 0 1a D NOTES: 1. THIS DRAWING IS TO SERVE IN A LETTER OF REVISION TO SDP #202100038, "MCAWRRF IN -PLANT CLARIFIERS AND LIME SILO DEMOLITION." THE REMAINING TP LOAD REDUCTION REQUIRED FROM THIS SITE PLAN (0.04 LB/YR) WILL BE COMPLETED FROM THE TP REDUCTION REQUIREMENTS EXCEEDED FROM SDP #202100038. SEE DRAWING C16, OF SDP #202100038. 2. SWITCHGEAR BUILDING DIMENSIONS ARE TO BE 24' X 15' AND 10' IN HEIGHT, SEE E900. BUILDING IS TO BE CENTERED ON A 26' X 17' CONCRETE PAD. STORMWATER WILL SHEET FLOW OFF THE ROOF AND PAD OF THE SWITCHGEAR BUILDING. PROPOSED STRUCTURES WILL NOT CAUSE ANY CHANGE TO THE GENERAL DRAINAGE PATTERN OF THE AREA. PEAK FLOW CALCULATIONS PRE -DEVELOPMENT: DA-1 COVER DESCRIPTION HSG CN Area CN x Area IMPERVIOUS A 98 0.00 0.0 B 98 0.00 0.0 LAWN A 39 0.00 0.0 B 61 0.35 21.4 TOTALS 0.4 21 COMPOSITE CNI 61 TIME OF CONCENTRATION, tD (HOURS) 0.10 STORM FREQUENCY (YR) 2 10 RAINFALL (IN) 3.66 5.54 RUNOFF, Q 0.65 1.70 PEAK FLOW (CFS) 0.2 0.7 POST -DEVELOPMENT: DA-1 COVER DESCRIPTION HSG CN Area CN x Area IMPERVIOUS A 98 0.00 0.0 B 98 0.01 1.0 LAWN A 39 0.00 0.0 B 61 0.34 20.7 TOTALS 0.4 22 COMPOSITE CN 62 TIME OF CONCENTRATION, t° (HOURS) 0A0 STORM FREQUENCY (YR) 2 10 RAINFALL (IN) 3.66 5.54 RUNOFF, Q 0.69 1.79 PEAK FLOW (CFS) 0.3 0.8 PROJECT ENGINEER: J. NEWBOLD Digitally signed by Michael Date: 2021.12.02 MichaelSantowasso SantowassoHaze PERMITTING 08:20:23-05'00' sIGNATURE SET - HAZENANDSAWYER 4011 WESTCHASE BOULEVARD, SUITE 500 RALEIGH, NORTH CAROLINA 27607 LICENSE NO.: C-0381 RIVANNA WATER &SEWER AUTHORITY CHARLOTTESVILLE, VIRGINA SITE CIVIL FINAL SITE PLAN DATE: DECEMBER 2021 DESIGNED BY: A. MARCH HAZENNO.: 31430-006 DRAWN BY: A. MARCH CONTRACTNO.' 1 5 WPO SIGNATURE SET 12/01/2021 JN MOORES CREEK AWRRF ELECTRICAL INFRASTRUCTURE IMPROVEMENTS 4 WPO/LOR RESUBMITTAL #1 11/10/2021 JN CHECKED BY: M. SANTOWASSO DRAWING NUMBER: C13 3 WPO/LORSUBMITTAL 9/21/2021 JN 2 95% DESIGN SUBMITTAL 9/14/2021 JN IF THIS BAR DOES NOT 0 1/2" 11. MEASURE 1" THEN DRAWING IS NOT TO FULL SCALE 1 50°/DDESIGN SUBMITTAL 4/6/2021 JN REV ISSUED FOR DATE BY w ul z J K i r I I 5 WPO SIGNATURE SET 4 WPO/LOR RESUBMITTAL #1 3 WPO/LOR SUBMITTAL 2 95% DESIGN SUBMITTAL 1 50% DESIGN SUBMITTAL REV ISSUED FOR 8'-0" MAX STEEL POST TOP STRAND STAY WIRES GALV WIRE FABRIC AND SILT FENCE MATERIAL. BURY TOE OF MATERIAL FABRIC A MIN OF 8" BOTTOM STRAND GRADE LINE —\ z 1 MIN ELEVATION SECTION SILT FENCE SILT FENCE 12/01/202' 11 /10/202' 9/21 /2021 9/14/2021 4/6/2021 DATE NOTE: 1. EXTRA STRENGTH SILT FENCE MATERIAL (AS APPROVED BY ENGINEER) WITH 6-0" POST SPACING DOES NOT REQUIRE MESH SUPPORT FENCE. 2. SILT FENCE MATERIAL SHALL BE WIRED DIRECTLY TO POST. C-31-0400 41 .AAV STABILIZED OUTLET FOR SILT FENCE C-31-0403 PROJECT ENGINEER: J. NEWBOLD — DESIGNED BY: A. MARCH DRAWN BY: A. MARCH JN JN CHECKED BY: M. SANTOWASSO JN JN IF THIS BAR DOES NOT MEASURE 1" THEN DRAWING IS NOT TO FULL SCALE 0 1/2" 1.1 JN BY z CO 2 CURB OPENING WITHOUT GRATE OVERFLOW GAP AGGREGATE POUCH NOTES: MANHOLE CURB FILTER GUTTERGATOR ® BY ACF ENVIRONMENTAL OR APPROVED EQUAL 1. INSTALL CURB FILTERS AT ALL INLETS WITHOUT GRATES TO KEEP SILT, SEDIMENT AND CONSTRUCTION DEBRIS OUT OF THE STORM SYSTEM 2. THE CURB FILTER SHALL BE DANDY CURB AS MANUFACTURED BY DANDY PRODUCTS INC., OR EQUAL. SUBMIT SHOP A SHOP DRAWING FOR THE CURB FILTERS. 3. THE CURB FILTER SHALL FORM OF A CYLINDRICAL TUBE PLACED IN FRONT OF AND EXTENDING BEYOND THE INLET OPENING ON BOTH SIDES. 4. THE CURB FILTER SHALL HAVE A POUCH ON THE STREET SIDE OF THE UNIT FOR STONE AGGREGATE TO HOLD THE FILTER IN PLACE. 5. THE CURB FILTER SHALL BE CONSTRUCTED OF A HIGH VISIBILITY ORANGE MONOFILAMENT FABRIC. 6. FILL POUCH WITH #57 STONE AGGREGATE TO A LEVEL (AT LEAST HALF -FULL) THAT WILL KEEP UNIT IN PLACE DURING A RAIN EVENT AND CREATE A SEAL BETWEEN THE CURB FILTER AND THE SURFACE OF THE STREET. 7. CENTER THE UNIT AGAINST CURB OR MEDIAN INLET OPENING SO THAT THE CURB SIDE OF THE UNIT CREATES A SEAL WITH THE CURB OR MEDIAN BARRIER AND INLET STRUCTURE. THERE WILL BE APPROXIMATELY TWELVE (12) INCHES OF THE INLET PROTECTION UNIT OVERHANGING ON EACH SIDE OF THE OPENING. 8. THE CONTRACTOR SHALL REMOVE ALL ACCUMULATED SEDIMENT AND DEBRIS FROM SURFACE AND VICINITY OF UNIT AFTER EACH RAIN EVENT. 12" MIN TYP 1 SLOPE 3.1 12A CUT SECTION CURB INLET PROTECTION C-31-0414 VARIES - SEE SITE PLAN _ CL EQUAL _ EQUAL SLOPE AT 1/4:12 SLOPE AT 1/4:12 ASPHALT _ IRFACE COURSE i' ASPHALT TACK COAT ISE COURSE NOTE: THE 2" ASPHALT CONCRETE SURFACE COURSE AND THE TACK COAT SHALL NOT BE PLACED UNTIL COMPLETION OF ALL OTHER WORK IN CONTRACT. 12: 1 FILL SECTION 8" AGGREGATE BASE COURSE TYPE I SEPARATOR GEOTEXTILE COMPACTED SUB -GRADE TYPICAL ROADWAY SECTION C-32-0551 Digitally signed by Michael Michael Santowasso Santowasso Date: 2021.12.02 PERMITTING 08:20:43-05'00' Hazen SIGNATURE SET — HAZEN AND SAWYER 4011 WESTCHASE BOULEVARD, SUITE 500 RALEIGH, NORTH CAROLINA 27607 LICENSE NO.: C-0381 1992 STONE CONSTRUCTION ENTRANCE 70' MIN. EXISTING PAVEMENT 3- FILTER CLOTH-*� Er MIN AT MOUNTABLE BERM (OPTIONAL) ELEVATION EXISTING GROUNDSIDE (OPTIONAL) neat •� , !�.• ��r•UPp!r�• 10' MIN 12' MIN. COURSE AGGREGATE B TO SEDIMENT TRAPPING DEVICEPAVEMENT MUST EXTEND FULL W107H OF INGRESS r EGRESS OPERATION MIN. FILTER CLOTH SECTIONY REINFORCED CONCRETE DRAIN B-B AdaptedSECTION •: Standards Erosion BACK OF CURB 12" 2'-6„ FINISHED GRADE — MIN 6" 1 RIVANNA WATER & SEWER AUTHORITY CHARLOTTESVILLE, VIRGINA MOORES CREEK AWRRF ELECTRICAL INFRASTRUCTURE IMPROVEMENTS r CONCRETE CURB AND GUTTER ASPHALT PAVEMENT U 3" R 1 1/2" SLOPE � f �' 17 �0 U� U �0 NOTES: 1. CONTRACTION JOINTS SHALL BE PLACED AT 10 FOOT INTERVALS, OR 15 FOOT INTERVALS WHEN A MACHINE IS USED TO PLACE THE CURB. 2. EXPANSION JOINTS SHALL BE PLACED AT 90 FOOT INTERVALS AND ADJACENT TO ALL RIGID OBJECTS. CURB AND GUTTER C-32-0530 DETAILS CIVIL STANDARD DETAILS DATE: DECEMBER 2021 HAZEN NO.: 31430.006 CONTRACT NO.: 1 DRAWING NUMBER: CD1 1/2 S FOR ASPHALT PAVEMENT OVER CONCRETE ASPHALT SURFACE CONCRETE -MATCH COURSE, MATCH EXISTING, 6" MIN EXISTING, 2" MIN AGGREGATE BASE _ COURSE, MATCH EXISTING, 6" MIN a Z \ 0 v 5 WPO SIGNATURE SET 4 WPO/LOR RESUBMITTAL #1 3 WPO/LOR SUBMITTAL 2 95% DESIGN SUBMITTAL IREVIISSUED FOR 12/01 /202' 11/10/202' 9/21/2021 9/14/2021 4/6/2021 DATE rCOMPACTE� BACKFILL W SEE NOTE 1 TYPICAL TRENCH C-01-0106 in TYPE A IN EARTH C-01-0100 FOR ASPHALT PAVEMENT EXISTING PAVEMENT ASPHALT BASE COURSE, 3.5" MIN AGGREGATE BASE /\ COURSE, MATCH EXISTING, 6" MIN \ TYPEISEPARATOR GEOTEXTILE \ Z N NOTES: 1. SEE C-01-0107 FOR TRENCH WIDTH, "W'VALUES. 2. SEE C-01-0100 THRU C-01-0105 FOR PIPE BEDDING DETAILS. 3. THIS DETAIL SHALL APPLY TO BOTH PIPING AND CONCRETE ENCASED DUCTBANKS. PROJECT ENGINEER: J. NEWBOLD DESIGNED BY: A. MARCH DRAWN BY: A. MARCH JN CHECKED BY: M. SANTOWASSO JN IF THIS BAR DOES NOT 0 1/2" 1" JN MEASURE 1" THEN DRAWING BY IS NOT TO FULL SCALE JN PERMITTING SIGNATURE SET COMPACTED BACKFILL SELECT BACKFILL MATERIAL (NO MATERIAL LARGER THAN 2") TRENCH EXCAVATION LIMITS INTERNAL DIAMETER OF PIPE W WIDTH OF TRENCH MAX W=MIN 4"-6" T-9" 2'-0" 8%10" 3'-9" 2'-2" 12" 3'-9" O.D.+2' 14"-16" 4'-2" O.D.+2' 18" 4'-4" O.D.+2' 20",21" 4'-8" O.D.+2' 24" 4'-11" O.D.+2' 27" 5'-9" O.D.+2' 30" 6'-7" O.D.+2' 36" 7'-4" O.D.+2' 42" 8'-2" O.D.+2' 48" 8'-9" O.D.+2' 54" 9'-4" O.D.+2' 60" 9'-10" O.D.+2' 72" 11'-0" O.D.+2' 78" 11'-8" O.D.+2' 84" 12'-0" O.D.+2' 90" 12'-6" O.D.+2' 96" 13'-0" O.D.+2' 108" 14'-0" O.D.+2' DEPTH OF CUT S MAXIMUM PAVEMENT REPLACEMENT WIDTH 0-6' S=W+4' >6-8' S=W+8, >8-10' S=W+12' >10-12' S=W+16' >12-14' S=W+20' >14-16' S=W+24' >16-18' S=W+28' >18' S=W+32' W = TRENCH WIDTH AT BOTTOM OF PIPE. TRENCH SIDE SLOPES SHALL BE IN ACCORDANCE WITH OSHA REQUIREMENTS. C-01-0107 Digitally signed by Michael Santowasso Michael Santowasso Date: 2021.12.02 08:21:00-05'00' 1 Haze HAZEN AND SAWYER 4011 WESTCHASE BOULEVARD, SUITE 500 RALEIGH, NORTH CAROLINA 27607 LICENSE NO.: C-0381 6" MIN EDGE DISTANCE BLDG EDGE/EQUIP EDGE 8" MIN #57 STONE COMPACTED SUBGRADE CUT BACK EXIST SURFACE COURSE 6" MIN FROM BASE SLOPE EXIST SURFACE COURSE TACK COAT #5@8" T&B, EW NEW ASPHALT PAVEMENT SEE C-32-0550 CUT BACK EXIST BASE COURSE 12" MIN ASPHALT SURFACE COURSE, 2" MIN TACK COAT ASPHALT BASE COURSE, 3.5" MIN AGGREGATE BASE COURSE EXIST BASE COURSE TYPICAL PAVEMENT JUNCTION C-32-0556 #5@8" EW AS REQUIRED FOR EQUIPMENT #5@8„ MINIMUM DEPTH FROM FINISHED GRADE TO BOTTOM OF FOUNDATION PER GENERAL STRUCTURAL NOTES (FROST DEPTH) NOTE: UNLESS NOTED OTHERWISE, CONTRACTOR SHALL HAVE THE OPTION OF PLACING EQUIPMENT FOUNDATION WITH A CONSTANT THICKNESS OF D + 6" OR AS AN 8" SLAB WITH THICKENED EDGE AROUND THE FOUNDATION PERIMETER. EXTERIOR EQUIPMENT FOUNDATION S-03-0508 RIVANNA WATER & SEWER AUTHORITY CHARLOTTESVILLE, VIRGINA MOORES CREEK AWRRF ELECTRICAL INFRASTRUCTURE IMPROVEMENTS 2'-0" DETAILS CIVIL STANDARD DETAILS m L DATE: DECEMBER 2021 HAZEN NO.: 31430-006 CONTRACT NO.: 1 DRAWING NUMBER: CD2