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HomeMy WebLinkAboutWPO202000057 Plan - Submittal (First) 2020-12-10© 2020 - 30 LLC r■■. SYMBOLS GOOSE RIDGE POND VIRGINIA EROSION AND SEDIMENT CONTROL PROGRAM (VESCP) PLAN AC ACRE EXISTING PROPOSED ADA AMERICANS WITH DISABILITIES ACT ARV AIR RELEASE VALVE GRASS DITCH LINING PER VESCH 3.32 BF BASEMENTFLOOR BM BENCH MARK 0 VDOT STD. EC-3 DITCH LINING BW BOTTOM OF WALL (AT GROUND LEVEL) CFS CUBIC FEET PER SECOND --498-- —12— CONTOUR LINE WITH ELEVATION CG-12 ADA ACCESSIBLE CURB RAMP (VDOT STANDARD) CL CLASS 12 STORM SEWER STRUCTURE IDENTIFIER CMP CORRUGATED METAL PIPE CO SANITARY SEWER CLEANOUT O SANITARY SEWER STRUCTURE IDENTIFIER CONC CY CONCRETE CUBIC YARDS BENCHMARK, TEST PIT DB/PG DEED BOOK/PAGE DEQ VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY O MANHOLE WITH FRAME AND COVER DIP DUCTILE IRON PIPE SPOT ELEVATION DOM DOMESTIC + 65EX + 65 E&S EROSION AND SEDIMENT CONTROL 4 EL, ELEV ELEVATION ADA PARKING SYMBOL EP, EOP EDGE OF PAVEMENT ESMT EASEMENT OO WATER CROCK/METER EW END WALL EX EXISTING FIRE HYDRANT FF FIRST FLOOR FH FIRE HYDRANT 0 • WATER VALVE FM FORCE MAIN FPS FEET PER SECOND —+ — WATERMAIN GSF GROSS SQUARE FEET GW GUY WIRE SANITARY SEWER MAIN HDPE HIGH -DENSITY POLYETHYLENE PIPE HP HIGH POINT m STORM SEWER HT HEIGHT INV INVERT ---- PROPERTY LINE/RIGHT-OF-WAY LINE IRF IRON ROD FOUND IRS IRON ROD SET — - — CENTER LINE L LENGTH LAT LATERAL FENCE LINE LF LINEAR FEET LP LOW POINT ---- EASEMENT LINE LT LEFT MAX MAXIMUM MH MANHOLE MIN MINIMUM NSF NET SQUARE FEET NTS NOT TO SCALE OHE OVERHEAD ELECTRIC PC POINT OF CURVATURE PERF PERFORATED PL PROPERTY LINE PROP PROPOSED PSI POUNDS PER SQUARE INCH PT POINT OF TANGENCY PVC POINT OF VERTICAL CURVATURE PVC POLYVINYL CHLORIDE PIPE PVI POINT OF VERTICAL INTERSECTION PVT POINT OF VERTICAL TANGENCY R RADIUS R/W RIGHT-OF-WAY RCP REINFORCED CONCRETE PIPE RED REDUCER RPA RESOURCE PROTECTION AREA RT RIGHT RTE ROUTE SAN SANITARY SEWER SD SIGHT DISTANCE SDR STANDARD DIMENSION RATIO STA STATION SVC SERVICE SW SIDEWALK SWIM STORMWATER MANAGEMENT T TRANSFORMER TBR TO BE REMOVED TC TOP OF CURB TP TELEPHONE PEDESTAL TW TOP OF WALL UG UNDERGROUND UGE UNDERGROUND ELECTRIC UGT UNDERGROUND TELEPHONE/FIBER LINE UGU UNDERGROUND UTILITY VDOT VIRGINIA DEPARTMENT OF TRANSPORTATION VESCH VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK VSMP VIRGINIA STORMWATER MANAGEMENT PROGRAM WM WATER METER WTR WATER WV WATER VALVE WPO 2020- TMP 36-30B ALBEMARLE COUNTY, VIRGINIA RIVANNA MAGISTERIAL DISTRICT SPOT N Sw0 O O T'Q9i� (RTF33J Q L c� hglo A YORFFk (RTF6 p8) ROgO PRATT SITE PROPERTY Q� P !y �5 QO OR O VICINITY MAP SCALE: 1 "=2000' OWNER: LISE PRATT 7139 WILDON GROVE ROAD GORDONSVILLE, VA 22942 ENGINEER: 30 SCALE, LLC 871 JUSTIN DRIVE PALMYRA, VA 22963 434-242-2866 ATTN: MICHAEL MYERS, PE, CFM RESPONSIBLE LAND DISTURBER ZACH EDLEBERG (CERT NO. ) LIMITS OF DISTURBANCE = 43.300 SF(0.99 AC. REVISIONS # DESCRIPTION DATE SHEET INDEX # SHEET TITLE 1 COVER SHEET 2 EXISTING CONDITIONS PLAN 3 EROSION AND SEDIMENT CONTROL PLAN 4 EROSION AND SEDIMENT CONTROL NARRATIVE PROPERTY INFORMATION: TAX MAP AND PARCEL: 36-30B OWNER: LISE PRATT SITE AREA: 382 AC SOURCE OF TITLE: DB 5058 PG 194 TOPOGRAPHIC SURVEY MERIDIAN PLANNING GROUP, LLC, DATED OCTOBER 2020 BOUNDARY SURVEY PLAT OF RECORD DATUM: ASSUMED DATUM CITY/STATE ALBEMARLE COUNTY, VIRGINIA ZONING: RA FLOODPLAIN NOTE: THE PROPERTY IS LOCATED IN ZONE 'W, AN AREA DETERMINED TO BE OUTSIDE THE 0.2% ANNUAL CHANCE FLOOD PLAIN AS SHOWN ON FEMA MAP NO. 5100300200D, EFFECTIVE DATE FEBRUARY4, 2005. UP' SCALE ENGINEERING owner: LISE PRATT 7139 WILDON GROVE ROAD GORDONSVILLE, VA 22942 engineer: 30 SCALE, LLC 871 JUSTIN DRIVE PALMYRA, VA 22963 p: 434.242.2866 e: mike@30scale.com web: www.30scale.com I I I I i I sc z O z z 0 U Lu J w m J Z 0 0. W m V O M 0 M G ~ W () 0 0 V ~ U F 0 J Q iY w U) C7 z z z N\' / Lic. No. 33028 ✓ 12/10/2020 sheet title: COVER SHEET scale: 111=30' date: 12/10/2020 I sheet # 1 OF 4 @ 2020 - 30 SCALE, LLC KEY WATER PROTECTION ORDINANCE BUFFER SOILS BOUNDARY 79B NRCS SOILS MAP UNIT SYMBOL CRITICAL SLOPES PER ALB CO GIS VERTICAL DATUM NOTE THE ELEVATIONS SHOWN ON THIS PLAN ARE TAKEN FROM ALBEMARLE COUNTY GIS. THESE ELEVATIONS ARE BASED ON NAVD 1988 VERTICAL DATUM. Curve Table Curve # Length Radius Delta Chord Direction Chord Length C3 104.94 255.93 23.49 N500 45' 07"E 104.21 C4 156.54 584.86 15.34 N31° 20' 14"E 156.07 C2 121.77 381.29 18.30 S53° 21' 02"W 121.25 0 100 200 SCALE: 1" = 100' s���,^ G �� /\ C 564 \ °� es 316Q A A A \ / r? teP OJ ECT LOCATIO I \ 540 _ I- \/ 1 EX POND POP WATER�ROTECTION 190� \ \\ \ \ \ ORDINANCE BUFFER \ \ \ -540— \ \ \ \ \ \ J 560 \ \\ \ po \ \ I / / ff SCALE ENGINEERING owner: LISE PRATT 7139 WILDON GROVE ROAD GORDONSVILLE, VA 22942 engineer: 30 SCALE, LLC 871 JUSTIN DRIVE PALMYRA, VA 22963 p: 434.242.2866 e: mike@30scale.com web: www.30sGale.com Q 0 I L Z J 00 z 0 w V z 0 Ly W C) z v / 0 z 0 0 V 0 w m co (M sheet title: EXISTING CONDITIONS PLAN scale: 1 " = 100' date: 12/10/2020 i i sheet # 2 OF 4 © 2020 - 30 LLC 720 23B ` \ / \66` g? LIMITS OF DISTURBANCE=43,300 SF k$5 25B / A�- / 72C3, / MATCH LINE THIS SHEET ZV 79B KEY WATER PROTECTION ORDINANCE BUFFER SOILS BOUNDARY NRCS SOILS MAP UNIT SYMBOL / \// �`��-//726% j \ MATCH LINE THIS SHEET / A PROPERTY LINE COTO UCLTION A RGESE ROATH D DOG 6tUN PRyr-i' LI M�rJ / . r" / / / 1 1 EXISTING TREE LINE +58EX / / \ �� ( _ CONTRACTOR TO LOWER \ \ +58EX 39.5' TP POND WOE TO BE ABLE TO WORK IN DRY CONDITIONS DURING CONSTRUCTION I 1� EX WILLOW TREE (TO REMAIN) \ EXPOND WSE=±457.3 `+5Val I /EXMAPfREE / / — \ �� xISF SF • 57.1' I I X DAM BYR1OLOWER 51 8" TO ELEV=458 4 `'� J I I I 59 57_ — _5885 +584 55 56 ^�• EX PEAR TREE \ / 54 ) + B / MU a 58� +577 i 55 57 56 11�0 PS C3 I I Mu 26 I I I LIMITS OF \ DI TURBANCE=43,3�OSF 79B WATER PROTECTION ORDINANCE BUFFER NOTE THERE IS NO STREAM DISTURBANCE AND NO BUFFER PLANTING DISTURBANCE PROPOSED WITH THIS PLAN. ALL WORK PERFORMED WITHIN THE WATER PROTECTION ORDINANCE BUFFER IS TO BE COMPLETED IN ACCORDANCE WITH THE APPROVED EROSION AND SEDIMENT CONTROL PLAN TREE PROTECTION FENCING NOTE CONTRACTOR HAS THE OPTION TO PROVIDE PLASTIC ORANGE MESH TREE PROTECTION FENCING AROUND THE EXISTING WILLOW TREE TO BE SAVED SECURED WITH STAKES AT MAXIMUM 6' ON -CENTER OR TO TRANSPLANT THE TREE TO A MUTUALLY -AGREED ON LOCATION WITH THE OWNER. VERTICAL DATUM NOTE THE ELEVATIONS AS SHOWN ON THIS PLAN ARE BASED ON A FIELD SURVEY BY MERIDIAN PLANNING GROUP. THE ELEVATIONS ARE BASED ON AN ASSUMED DATUM. EROSION AND SEDIMENT CONTROL LEGEND STD# ABBREV. SYMBOL E&S PRACTICE 3.02 CE =K:fl CONSTRUCTION ENTRANCE 3.05 SF X—X— SILT FENCE 3.31 TS n TEMPORARY SEEDING 3.32 PS rs PERMANENT SEEDING 3.35 MULCH 3.38 TP a TREE PROTECTION LOD — — — LIMITS OF DISTURBANCE 1 _J SF 1 ✓ \ \� \ 57B \ AREA FOR CONTRACTOR TO I SPREAD EXCAVATED MATERIAL 1 \ 1�/ ATER-PR OT-ECT-1 6­N \ ORDINANCE BUFFER \ 0 30 60 SCALE: 1 "=30' REVISIONS # DESCRIPTION DATE ff SCALE ENGINEERING owner: LISE PRATT 7139 WILDON GROVE ROAD GORDONSVILLE, VA 22942 engineer: 30 SCALE, LLC 871 JUSTIN DRIVE PALMYRA, VA 22963 p: 434.242.2866 e: mike@30scale.com web: www.30sGale.com Q 0— J ` 0O z O w V z Lu 0 0 z O z O O 0 V w m 0 co I co 0 z z 0 U W J Q W W m J Q -j sheet title: EROSION AND SEDIMENT CONTROL PLAN scale: 1 "=30' I date: 12/10/2020 sheet # 3 OF 4 © 2020 - 30 LLC 3 z w w a° 9 0 A, 0 C? N 0 N w 2 z 3 EROSION AND SEDIMENT CONTROL NARRATIVE PROJECT DESCRIPTION THE PURPOSE OF THIS PLAN IS TO ENLARGE THE EXISTING 25,000-SF SURFACE AREA POND BY 11,000 SF AND SHAPE THE SHORELINE TO BE OPTIMAL FOR HUNTING DOG TRAINING, WHICH IS A HOBBY OF THE PROPERTY OWNER. THE POND IS A SMALL EXISTING FARM POND THAT SERVES NO STORMWATER MANAGEMENT FUNCTION. SINCE THE TOTAL DISTURBED AREA TO COMPLETE THIS WORK IS GREATER THAN 10,000-SF, BUT LESS THAN ONE ACRE, AN EROSION AND SEDIMENT CONTROL PERMIT IS REQUIRED. THERE IS AN EXISTING WATER PROTECTION ORDINANCE BUFFER AROUND THE POND SHOWN ON ALBEMARLE COUNTY GIS. HOWEVER THE SHORE AREA TO BE DISTURBED INCLUDES NO DISTURBANCE OF BUFFER PLANTINGS. FOR THIS REASON, NO BUFFER MITIGATION IS REQUIRED AS NOTED ON THE EROSION AND SEDIMENT CONTROL PLAN. /6911RKKi1IU1111iL6 THERE IS AN EXISTING SINGLE-FAMILY DETACHED DWELLING AND OUTBUILDING ON THE 38.2-ACRE PROPERTY, CURRENTLY ZONED RA (RURAL AREAS). ACCESS TO THE PROPERTY IS VIA AN EXISTING DRIVEWAY OFF OF WILDON GROVE ROAD (RTE 645). THE DRIVEWAY AND WILDON GROVE ROAD ARE RIDGES AND RUNOFF FLOWS OFF THE RIDGES VIA SHEET FLOW TOWARD THE POND. THE LAND COVER ON THE PROPERTY IS PRIMARILY MEADOW WITH A ROW OF TREES ADJACENT TO THE DRIVEWAY WHICH TURN TO THE NORTH AND RUN TO THE NORTHEASTERN PROPERTY LINE. THERE IS A PATCH OF TREES ALONG THE SOUTHWESTERN CORNER OF THE PROPERTY. THE EXISTING POND OUTFALLS VIA A 15" PIPE INTO AN EXISTING OUTFALL DITCH THAT RUNS TO THE SOUTHEAST AND CROSSES ONTO THE NEIGHBORING PROPERTY. I_1B11LT91gI10CI AR THE SITE IS BORDERED ON THE NORTHEAST, SOUTHEAST AND SOUTHWEST BY RESIDENTIAL PROPERTIES; ALL ADJACENT PROPERTIES ARE ZONED RA. WILDON GROVE BORDERS THE SITE ON THE NORTHWEST. THERE IS NO FEMA FLOODPLAIN ON THE PROPERTY. THE OUTFALL CHANNEL LEAVING THE PROPERTY RUNS FOR APPROXIMATELY 1,600 FEET BEFORE REACHING THE FEMA FLOODPLAIN. SOIL DESCRIPTIONS BASED ON THE WEB SOILS SURVEY, THE FOLLOWING SOILS ARE ANTICIPATED TO BE ENCOUNTERED WITHIN THE LIMITS OF WORK. PREOOMINANTSOILS NAME RUNOFF FRLQULNCYOF FRLQVLNCY U011I 10 SOILS CLA55 -........ FLOODING OF PONUING WALK IABLE GROUP - ---._........--...__......--- MEADOWYILLE SILT LOAM 179BI .._..... MEDIUM ........................ OCCASIONAL/NON[ .......... NONE ----_...........- +ed' --i B MOUNT LUCAS S':LILOAM 157U1 MLDIUM NONE _ NCNE 12 2P QD I ------------COUNT- MAY ALSO ENCOUNTER: DYKE SILT LOAM 925111 MEDIUM ____ NONE ' NONE -BD' B .......................................... ... ... DYKE CLAY LOAM 1260 .......... MEDIUM NONE ...... NONE 7UU' B I I RAUUN CLAY(720E MEDIUM NONE NONE AV 8 CRITICAL AREAS GIS MAPPING INDICATES AN 800-SF AREA OF CRITICAL SLOPES LOCATED IN THE MIDDLE OF THE PROPERTY, BUT IT IS LOCATED 175 FEET FROM THE LIMITS OF DISTURBANCE AND WILL NOT BE AFFECTED BY THE PROPOSED CONSTRUCTION. EROSION AND SEDIMENT CONTROL MEASURES ALL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED IN ACCORDANCE WITH THE MINIMUM STANDARDS AND SPECIFICATIONS IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK UNLESS OTHERWISE DIRECTED BY THE ALBEMARLE COUNTY INSPECTIONS DEPARTMENT. THE FOLLOWING EROSION AND SEDIMENT CONTROL PRACTICES (VESCH REFERENCE NUMBER INCLUDED) MAY BE IMPLEMENTED WITH THIS PLAN AND IS NOT AN EXHAUSTIVE LIST: VESCH REFERENCE# 3.01 - SAFETY FENCE (SAF) A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. 3.02 - TEMPORARY CONSTRUCTION ENTRANCE (CE) A CONSTRUCTION ENTRANCE SHALL BE PROVIDED AT THE ENTRANCE OF THE PROJECT SITE TO PROVIDE A MEANS OF REMOVING SEDIMENT FROM THE TIRES OF CONSTRUCTION VEHICLES LEAVING THE WORK SITE. THE CONTRACTOR SHALL REMOVE ANY MUD FROM THE EXISTING ROAD SURFACE BY MEANS OF SWEEPING AND SHOVELING, IN THE EVENT THE WASH AREA IS NOT ADEQUATE IN SEDIMENT REMOVAL. PLEASE NOTE THAT SINCE THE DURATION OF THE PROJECT IS EXPECTED TO TAKE LESS THAN 60 DAYS, A TEMPORARY STONE CONSTRUCTION ENTRANCE IS PROPOSED IN LIEU OF A PAVED CONSTRUCTION ENTRANCE. AFTER CONSTRUCTION, THE ENTRANCE WILL BE CLOSED AND REMOVAL OF THE GRAVEL WILL HAVE LESS OF AN ENVIRONMENTAL IMPACT THAN IF IT WERE BITUMINOUS PAVEMENT. 3.03 - CONSTRUCTION ROAD STABILIZATION (CRS) THE TEMPORARY STABILIZATION OF ACCESS ROADS, SUBDIVISION ROADS, PARKING AREAS, AND OTHER ONSITE VEHICLE TRANSPORTATION ROUTES WITH STONE IMMEDIATELY AFTER GRADING. DUE TO THE LIMITED USE OF THE ACCESS PATHWAY, A STONE ACCESS IS NOT ANTICIPATED TO BE USED WITH THIS PLAN. 3.05 - SILT FENCE (SF) SILT FENCE IS TYPICALLY INSTALLED AS A FIRST STEP IN CONSTRUCTION ACTIVITIES. LOCATION AND DETAILS ARE SHOWN ON THE PLANS. 3.07 - INLET PROTECTION (IP) A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDMENT AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET TO MINIMIZE SEDIMENT FROM ENTERING THE STORM DRAINAGE SYSTEMS PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA. NOT ANTICIPATED TO BE USED WITH THIS PLAN. 3.09 - DIVERSION DIKE (DID) A RIDGE OF COMPACTED SOIL OR LOOSE ROCK OR GRAVEL CONSTRUCTED ACROSS DISTURBED RIGHT-OF-WAY AND SIMILAR SLOPING AREAS. LOCATION AND DETAILS OF THE RIGHT OF WAY DIVERSION ARE SHOWN ON THE PLANS. NOT ANTICIPATED TO BE USED WITH THIS PLAN. 3.11 - RIGHT-OF-WAY DIVERSION (RWD) A RIDGE OF COMPACTED SOIL OR LOOSE ROCK OR GRAVEL CONSTRUCTED ACROSS DISTURBED RIGHTS OF -WAY AND SIMILAR SLOPING AREAS. LOCATION AND DETAILS OF THE RIGHT OF WAY DIVERSION ARE SHOWN ON THE PLANS. NOT ANTICIPATED TO BE USED WITH THIS PLAN. 3.13 - TEMPORARY SEDIMENT TRAP (ST) A TEMPORARY SEDIMENT TRAP IS TYPICALLY INSTALLED BEFORE SITE GRADING BEGINS, FOR THE PURPOSE OF DETAINING SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS. NOT ANTICIPATED TO BE USED WITH THIS PLAN. 3.14 - TEMPORARY SEDIMENT BASIN (SB) A TEMPORARY SEDIMENT BASIN IS SIMILAR TO A TEMPORARY SEDIMENT TRAP AND IS INSTALLED IN THE EVENT THAT THE CONTRIBUTING DRAINAGE AREA IS 3 ACRES OR GREATER. NOT ANTICIPATED TO BE USED WITH THIS PLAN. 3.31 - TEMPORARY SEEDING (TS) TO THE MAXIMUM EXTENT POSSIBLE, TEMPORARY SEEDING SHALL BE APPLIED TO DENUDED AREAS THAT REMAIN DORMANT FOR 7 DAYS. SEEDED AREAS SHALL BE LIMED WHEN NECESSARY AT A RATE OF 2 TONS/ACRE, AND FERTILIZED AT A RATE OF 600 LBS/ACRE OF 10-20-10 (14 LBS. PER 1,000 SQUARE FEET) OR EQUIVALENT. CONTRACTOR SHALL SELECT TEMPORARY SEEDING PLANT MATERIALS FROM TABLE 3.31-13 OR C FROM THE VESCH. 3.32 - PERMANENT SEEDING (PS) A PERMANENT VEGETATIVE COVERING SHALL BE ESTABLISHED ON DISTURBED AREAS WITHIN 7 DAYS OF BEING BROUGHT TO FINAL GRADE AND THAT WILL NOT BE PAVED OR OTHERWISE BUILT UPON. CONTRACTOR TO SELECT THE PERMANENT SEEDING MIXTURE IN ACCORDANCE WITH THE SPECIFICATIONS IN THE VESCH. 3.35 - MULCHING (MU) ALL SEEDED AREAS SHALL BE MULCHED WITH STRAW IMMEDIATELY FOLLOWING SEEDING OPERATIONS. STRAW MULCH SHALL BE APPLIED AT A RATE OF 1.5 TO 2 TONS/ACRE. OTHER ALTERNATIVES MAY BE SELECTED FORM TABLE 3.35-A OF THE VESCH. 3.38-TREE PROTECTION (TP) THE USE OF FENCING TO SERVE AS A VISUAL AND PHYSICAL BARRIER FOR THE EXISTING VEGETATION THAT IS TO REMAIN UNDISTURBED AS PART OF THIS PLAN. CONTRACTOR HAS THE OPTION OF TRANSPLANTING TREES TO BE SAVED AND REPLANTED AFTER CONSTRUCTION IN LOCATION APPROVED BY THE OWNER. ONE-YEAR GUARANTEE TO BE PROVIDED FOR ALL NEW OR TRANSPLANTED LANDSCAPE MATERIAL. EROSION AND SEDIMENT CONTROL MEASURES - MAINTENANCE 1. THE CONSTRUCTION ACTIVITY OPERATOR OR HIS DESIGNEE, SHALL INSPECT ALL EROSION AND SEDIMENT CONTROL DEVICES IN ACCORDANCE WITH THE SCHEDULE PROVIDED IN THE GENERAL CONSTRUCTION PERMIT. IT IS RECOMMENDED THAT DEVICES BE CHECKED EACH DAY AND CERTAINLY AFTER EACH RAIN EVENT, AND THAT REPAIRS ARE MADE IMMEDIATELY AND AREAS ARE RE -SEEDED AND MULCHED AS APPROPRIATE. 2. ALL SEDIMENT -TRAPPING DEVICES AND FENCES SHALL BE CLEANED OUT AT 50 PERCENT CAPACITY OR HEIGHT, AND SEDIMENT SHALL BE DISPOSED OF BY PUMPING INTO A SILT -SACK OR OTHER APPROVED MEANS. 3. GRAVEL OUTLETS SHALL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP AND BE CLEANED WHEN SEDIMENT IS VISIBLY CLOGGING THE VOID SPACES. 4. DIVERSIONS SHALL BE CHECKED TO ENSURE PROPER RE-ROUTING OF DRAINAGE. DAMAGES THAT INTERRUPT THE EFFECTIVE FUNCTIONING OF THE DIVERSION SHALL BE REPAIRED IMMEDIATELY. 5. ALL SEEDED AREAS SHALL BE INSPECTED REGULARLY TO ENSURE THAT A VEGETATIVE COVER IS BEING ESTABLISHED. IN THE EVENT THAT THE SEEDING DOES NOT TAKE, CONTRACTOR TO TROUBLESHOOT AND TAKE REMEDIAL ACTION UNTIL THE APPROPRIATE VEGETATIVE COVER IS ESTABLISHED. GENERAL CONSTRUCTION NOTES FOR EROSION AND SEDIMENT CONTROL PLANS 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 SPECIFICATION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND CONTROL SEDIMENT 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 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. 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 FOR 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. 11. 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 7:00 AM TO 9:00 PM. 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAT 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 OF 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. CONSTRUCTION SEQUENCE ANTICIPATED START DATE: MARCH 2O21 ANTICIPATED COMPLETION DATE: MAY 2021 SEQUENCE OF CONSTRUCTION (ONE PHASE): 1. INSTALL TEMPORARY GRAVEL CONSTRUCTION ENTRANCE. 2. DRAWDOWN POND WATER VIA SIPHON OR PUMP SO THAT WORK MAY BE COMPLETED WITH DRY CONDITIONS. 3. INSTALL SILT FENCE AS SHOWN ON PLANS. EITHER PROVIDE TREE PROTECTION FENCING FOR TREE TO BE SAVED OR TRANSPLANT TREE AS DIRECTED BY OWNER. 4. PERFORM GRADING TO EXPAND POND FOOTPRINT AND RESHAPE SHORELINE. 5. PERMANENTLY STABILIZE ALL DISTURBED AREAS WITH PERMANENT SEEDING AND MULCH. 6. REMOVE ALL EROSION AND SEDIMENT CONTROL DEVICES ONLY AFTER THE SITE IS STABILIZED AND PERMISSION IS GRANTED BY THE ALBEMARLE COUNTY EROSION AND SEDIMENT CONTROL INSPECTOR. EROSION AND SEDIMENT CONTROL PLAN MINIMUM STANDARDS (PER 9VAC25-840-40) 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, OR 7 DAYS IF REQUESTED BY THE LOCAL INSPECTOR. 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 500 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. THE SITE COMPLIES WITH MS-19. NO CHANGES ARE ANTICIPATED TO THE RUNOFF CHARACTERISTICS OF THE SITE AS A RESULT OF THE WORK. TABLE 3.31-B ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS "QUICK REFERENCE FOR ALL REGIONS" Rate Planting Dates SMcies lbs. acre Sept. 1 - Feb. 15 50/50 Mix of Annual Ryegrass (Lolium multi-floruml & 50- 100 Cereal (Winter) Rye (Secale cereale) Feb. 16 - Apr. 30 Annual Ryegrass 60 - 100 (Lolium multi-florum) May 1 - Aug 31 German Millet 50 (Setaria italica) Source: Va. DSWC TS) TEMPORARY SEEDING SPECIFICATIONS VESCH STD. 3.31 TABLE 332-D SITE SPECIFIC SEEDING MIXTURES 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 Bluegrass 0-5% Hiph-Maintenance Lawn 200-2501bs. - Kentucky 31 or Turf -Type Tall Fescue 100%D General Slope (3:1 or less - Kentucky 31 Fescue 128 lbs. - Red Top Grass 2 lbs. - Seasonal Nurse Crop ' 20 lbs. 150 lbs. Low -Maintenance Slope (Steeper than 3: 1) - Kentucky 31 Fescue 108 lbs. - Red Top Grass 2 lbs. - Seasonal Nurse Crop • 20 tbs. - Crownvetch " 201bs. 150 lbs. 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 Crownvetch, increase rate to 30 lbs./acre. All legume seed must be properly inoculated. Weeping Lovegrass may be added to any slope or low -maintenance mix during warmer seeding periods; add 10-20 lbs./acre in mixes. PS) PERMANENT SEEDING SPECIFICATIONS VESCH STD. 3.32 CONSTRUCTION OF A SILT FENCE (WITHOUT WIRE SUPPORT) 1. SET THE STAKES. 2. EXCAVATE A 4"X 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES. O'MAX. i - PLOW r 3. STAPLE FILTER MATERIAL TO STAKES AND EXTEND IT INTO THE TRENCH. 110 FLOW 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. SHEET FLOW INSTALLATION (PERSPECTIVE VIEW) POINTS A SHOULD BE HIGHER THAN POINT B. Source: Adapted from Ins tallation of Straw and Fabric Filter Barriers for Sediment Control, Sherwood and Wyant Plate 3.05-2 SF SILT FENCE DETAIL VESCH STD. 3.05 1992 3.02 STONE CONSTRUCTION ENTRANCE 70' MIN. A FILTER CLOTH W MIN. I Al SIDE ELEVATION GROUND III 70' MIN. B WASHRACK 1 I (OPT) ONAU L VDOT Y1 I I ~� POSITIVE DRAINAGE COURSE AGGREGATE D TO SEDIMENT TRAPPING DEVICE • MUST EXTEND FULL MOTH OOF PERATIONS AND EGRESS PLAN VIEW 12' MIN. -' SECTION A -A REINFURILZEI LLNCRETE VKALN J'.UL MOUNTABLE BERM COPTIDNAU SECTION B-B Source: Adapted from 1983 Maryland Standards for Soil Plate 3.02-1 Erosion and Sediment Control. and Va. DSWC CE CONSTRUCTION ENTRANCE VESCH STD. 3.02 REVISIONS # DESCRIPTION DATE Q' SCALE ENGINEERING owner: LISE PRATT 7139 WILDON GROVE ROAD GORDONSVILLE, VA 22942 engineer: 30 SCALE, LLC 871 JUSTIN DRIVE PALMYRA, VA 22963 p: 434.242.2866 e: mike@30scale.com web: www.30sGale.com z Q NJ z O z Lij 0 LI J U) 0 Q O U) LI J 0 Z O W V H Rn 0 I co C_ G 5 sheet title: EROSION AND SEDIMENT CONTROL NARRATIVE scale: date: sheet # NONE 12/10/2020 4 OF 4