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HomeMy WebLinkAboutWPO201900008 Plan - VSMP WPO VSMP 2019-08-09V5MP PLAN fOR i EXISTI TI 161 'rc x 125 TC TOP OF CURB ELEVATION 161, x 125 SPOT ELEVATION 165TW x 125TW TOP OF WALL ELEVATION 1 e IOW x 125 B w BOTTOM OF WALL ELEVATION BENCHMARK �- STORM SEWER ROOF DRAIN SEWER LINE �- WATER LINE - - - DOMESTIC LINE FIRE LINE PURPLE LINE - - - OVERHEAD ELECTRIC LINE - UNDERGROUND TELEPHONE LINE HENDY RE51DENCE I MF) 0(5GOO-00-00-0(5000 FA Kel 0 101, N 6� 1 11, 0 VICINITY IMIAP SCALE: 1 99 =2,000' DRAIN INLET (DI) STORM/SANITARY MANHOLE PLUG WATER VALVE & BOX AC R 4p- FIRE HYDRANT WATER METERAl 'i�roajkr1��s;�t=' XX STORM SEWER LABEL SANITARY SEWER LABEL 7J- X YY REFERENCE LABEL slp0( Its] k�rrr ,r ® LIGHT POLE 1 1 13 I A P1 H I L'.1.. -3, UTILITY POLE SQUTHER W. 1-1Ill PROPERTY LINE ADJACENT PROPERTY LINE`r EE 7� VACATED PROPERTY LINE BUILDING SETBACK PARKING SETBACK IMAGE PROVIDED BY GOOGLE MAPS SANITARY EASEMENT GRADING EASEMENT HE E 1" 1 1114LD"E Alk' DRAINAGE EASEMENT -- - - UTILITY EASEMENT _ �% �� - -- WATER EASEMENT ACCESS EASEMENT C 2 - 1, J CONTROL I V A RAT I v E --..._-...- -_...__-..- SWM MAINTENANCE EASEMENT C - EV I S T I' `I G CONDITIONS i `i �L.J I N C aJ N T R®. J PLAN N PHASE 1 /�.J TREE LINE ._J FENCE C 5 - E' ru C O N T NU F LAN PHASE STREAM C - V R1\IVI [AND U5E MAP 312— INTERVAL CONTOUR (� `-' _ DRAINAGE AREA MAP -- 300— oa INDEX CONTOUR C - ERO'GION CONTROL DETAILS CG­2 CC-2 STANDARD 6" CURB CC�6 CG-a COMBINATION 6" CURB & GUTTER CONCRETE PAVEMENT f SIDEWALK Jam, RIPRAP a ASPHALT GRASS EC-2 MATTING EC-3 MATTING �; ;✓ STEEP SLOPES LOW MAINTENANCE GROUND COVER @ @ PARKING COUNT CROSSWALK HANDICAP ACCESSIBLE AISLE N CG-12 HANDICAP PARKING NOTE: 1. THE SIZE OF THE SYMBOLS MAY VARY FROM WHAT IS SHOWN. DEVELOPER OWNER / CPCM TELFORD TRUST 7993 LANGHORNE ROAD SCOTTSVILLE VA, 22590 DB 5008 PG 639 ZONING RURAL AREAS SOURCE OF SOURCE OF BOUNDARY & TOPOGRAPHIC SURVEY: ROUDABUSH, GALE & ASSOCIATES, INC. 914 MONTICELLO ROAD CHARLOTTESVILLE, VA 22902 SURVEY COMPLETED APRIL 3, 2018 ALBEMARLE COUNTY GIS DATA USED FOR OVERVIEW MAPS. BENCHMARKS: LOCAL ELEVATION DATUM ASSUMED NAD83 VIRGINIA STATE PLANE SOUTH APPROVED by the Albemarle County F-OrrimunIty De/Iel7ment eprtmeui File f - WATERSHED NORTH FORK HARDWARE RIVER WATERSHED LAND USE SCHEDULE AREA OF DEVELOPMENT 21.897 AC LIMITS OF DISTURBANCE 2.57 AC NEW IMPERVIOUS AREA 0.27 AC FLOOD ZONE ACCORDING TO THE FEMA FLOOD INSURANCE RATE MAP, EFFECTIVE DATE FEBRUARY 4, 2005 (COMMUNITY PANEL 51003CO400D), THIS PORTION OF THE PROPERTY DOES NOT LIE WITHIN THE ZONE AE 100-YEAR FLOOD PLAIN. 1.57 ACRES OF OPEN SPACE SHALL BE DEDICATED IN A SWM FOREST/OPEN SPACE EASEMENT. THE SWM FOREST AND OPEN SPACE EASEMENT IS SUBJECT TO THE GUIDANCE SET FORTH BY THE DEQ IN THE VIRGINIA STORMWATER MANAGEMENT PROGRAM. THE AREAS WILL REMAIN UNDISTURBED IN A NATURAL VEGETATIVE STATE, EXCEPT FOR ACTIVITIES AS APPROVED BY THE LOCAL PROGRAM AUTHORITY, SUCH AS FOREST MANAGEMENT, CONTROL OF INVASIVE SPECIES, REPLANTING AND REVEGETATING, PASSIVE RECREATION (E.G. TRAILS), AND LIMITED BUSH HOGGING TO MAINTAIN DESIRED VEGETATIVE COMMUNITY (BUT NO MORE THAN 4 TIMES A YEAR). 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 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 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. 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 7:00AM TO 9:OOPM. 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 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 100OLBS/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 REPAIRED 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 17-204G.) 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 17-207B) rem PROJECT DESCRIPTION THIS PROJECT INVOLVES THE CONSTRUCTION OF A HOUSE AND DRIVEWAY ON A 21.90 ACRE PARCEL ZONED RA. THE TOTAL AREA OF DISTURBANCE IS 2.57 ACRES. THE PROJECT INVOLVES THE FOLLOWING WORK ACTIVITIES: 1. THE CONTRACTOR SHALL OBTAIN ALL LOCAL AND STATE EROSION AND SEDIMENT PERMITTING REQUIREMENTS AND MAINTAIN ALL EROSION AND SEDIMENT CONTROLS IN ACCORDANCE WITH THE PERMIT REQUIREMENTS. 2. INSTALLATION OF PERMANENT EROSION AND SEDIMENT CONTROL MEASURES AS SHOWN ON THE PLAN AND DETAILS. 3. GRADING AND PLACEMENT OF FILL SHALL BE IN GENERAL ACCORDANCE WITH THE PLAN. 4. ESTABLISHMENT OF PERMANENT STABILIZATION OF ALL DISTURBED AREAS. EXISTING SITE CONDITIONS THE SITE AREA IS CURRENTLY VACANT. ADJACENT PROPERTIES THIS PROPERTY IS BORDERED TO THE NORTH, EAST, AND WEST BY VACANT LAND; AND TO THE SOUTH BY CARPENTER DRIVE. OFFSITE AREAS: THERE ARE NO OFFSITE ACTIVITIES INVOLVED IN THIS PROJECT. SOILS THE SITE AREA CONTAINS THE FOLLOWING SOIL TYPES. 36C - HAYESVILLE LOAM, 7 TO 15% SLOPES 36D - HAYESVILLE LOAM, 15 TO 25% SLOPES 56C - MEADOWALLE LOAM, 7 TO 15% SLOPES CRITICAL AREAS THERE ARE NO CRITICAL AREAS WITHIN THE SITE. EROSION & SEDIMENT CONTROLS 1. CONSTRUCTION ENTRANCE: INSTALL AND MAINTAIN A CONSTRUCTION ENTRANCE, AS NECESSARY, THAT MEETS THE REQUIREMENTS OF STD. AND SPEC. 3.02 AND CONFORMS WITH THE REQUIREMENTS OF THE EROSION & SEDIMENT CONTROL PLAN. 2. SILT FENCE: INSTALL AND MAINTAIN SILT FENCE THAT MEETS THE REQUIREMENTS OF STD. AND SPEC. 3.05. THIS SILT FENCE SHALL BE INSTALLED AS SHOWN ON THE EROSION & SEDIMENT CONTROL PLAN AND ACCOMPANYING DETAILS FOR THE PURPOSE OF INTERCEPTING SILT -LADEN RUNOFF BEFORE IT IS DISCHARGED FROM THE SITE. THE SILT FENCE SHALL BE INSPECTED AND MAINTAINED TO ENSURE CONTINUED PERFORMANCE. 3. TEMPORARY SEEDING: TEMPORARY SEEDING SHALL BE APPLIED TO ALL DENUDED AREAS WITHIN SEVEN (7) DAYS TO DENUDED AREAS THAT MAY OR MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. TEMPORARY SEEDING SHALL BE APPLIED IN CONFORMANCE WITH STD. AND SPEC. 3.31. 4. PERMANENT SEEDING: PERMANENT SEEDING SHALL BE APPLIED TO AREAS DELINEATED ON THESE PLANS WITHIN SEVEN (7) DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. PERMANENT SEEDING STABILIZES DISTURBED AREAS AND ENHANCES THE BEAUTY OF THE SITE. 5. MULCHING: APPLICATION OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL SURFACE TO PREVENT EROSION AND FOSTER THE GROWTH OF VEGETATION. ORGANIC MULCHES (STRAW) HAVE BEEN FOUND TO BE THE MOST EFFECTIVE. PERMANENT STABILIZATION AND SEQUENCE OF CONSTRUCTION THE FOLLOWING ARE THE PROPOSED MANAGEMENT STRATEGIES AND DETAILED SEQUENCE OF CONSTRUCTION: STAGE 1 1. INSTALL CONSTRUCTION ENTRANCE. 2. FENCE OFF SWIM FOREST/OPEN SPACE AREA PRIOR TO START OF CONSTRUCTION. 3.INSTALL SEDIMENT TRAP AND SILT FENCES AS SHOWN ON SHEET C4. 4. CONTACT THE ENGINEER AND ALBEMARLE COUNTY FOR INSPECTION AND APPROVAL OF ALL E&S CONTROL MEASURES. STAGE 2 1. UPON APPROVAL OF E&S CONTROL MEASURES, BEGIN SITE WORK. 2.REMOVE ORIGINAL GRAVEL DRIVEWAY. 3. MAINTAIN PERIMETER CONTROLS UNTIL DISTURBANCE IS COMPLETED. 4. AS AREAS ARE BROUGHT TO GRADE, APPLY MULCHING, TEMPORARY SEEDING AND PERMANENT SEEDING. 5. WHEN SITE HAS REACHED STABILIZATION, REMOVE PERIMETER CONTROLS. CONSTRUCTION MAINTENANCE THE FOLLOWING CONSTRUCTION MAINTENANCE PRACTICES SHALL BE FOLLOWED AT THE SITE. 1. ALL E&S CONTROL MEASURES WILL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAIN EVENT. ALL DEFICIENCIES IDENTIFIED DURING THESE INSPECTIONS SHALL BE CORRECTED AS SOON AS PRACTICABLE. 2. THE SILT FENCE BARRIER SHALL BE REGULARLY CHECKED FOR UNDERMINING, DETERIORATION OR SIGNIFICANT EROSION. SEDIMENT SHALL BE REMOVED AFTER EACH STORM EVENT AND WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHES HALF THE HEIGHT OF THE CONTROL. 3. THE CONTRACTOR IS RESPONSIBLE FOR ADHERING TO ALL MAINTENANCE REQUIREMENTS SET FORTH IN THE CURRENT EDITION OF THE VIRGINIA SEDIMENT AND EROSION CONTROL MANUAL, OTHER APPLICABLE COMMONWEALTH OF VIRGINIA REGULATIONS AND THE PROJECT SPECIFICATIONS. 4. ALL SEEDED AREAS WILL BE REGULARLY CHECKED TO ENSURE THAT A GOOD STAND OF GRASS IS MAINTAINED. 5. AREAS WITH RIP -RAP SHOULD BE REGULARLY INSPECTED TO DETERMINE IF HIGH FLOWS HAVE DAMAGED THESE CONTROLS OR CAUSED EXCESSIVE SEDIMENT DEPOSITION. ALL AREAS SHALL BE MAINTAINED IN ACCORDANCE WITH THE REQUIREMENTS OF THIS E&S CONTROL PLAN. ENVIRONMENTAL CONTROLS 1. CONTRACTOR SHALL PROVIDE AND MAINTAIN ALL ENVIRONMENTAL CONTROL MEASURES SO AS TO COMPLY WITH LOCAL ORDINANCES, STATE AND FEDERAL LAWS AND REGULATIONS APPLICABLE TO WATER POLLUTION IN WATERS OF THE STATE AND IN INTERSTATE WATERS. 2. CONTRACTOR SHALL MINIMIZE THE POTENTIAL FOR AIR POLLUTION BY THE USE OF EMISSION CONTROL EQUIPMENT ON CONTRACTOR OPERATED EQUIPMENT, SHUT -DOWN OF MOTORIZED EQUIPMENT WHEN NOT IN USE, AND ACTIVELY CONTROLLING DUST EMISSIONS THROUGHOUT THE PROJECT. EROSION & SEDIMENT CONTROL PERMITTING CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL LOCAL AND STATE EROSION AND SEDIMENT CONTROL PERMITS AND MAINTAINING ALL EROSION AND SEDIMENT CONTROLS IN ACCORDANCE WITH THE PERMIT REQUIREMENTS. GENERAL NOTES 1. THE INFORMATION AND DATA SHOWN OR INDICATED WITH RESPECT TO THE EXISTING UNDERGROUND UTILITIES AT OR CONTIGUOUS TO THE SITE ARE BASED ON INFORMATION AND DATA FURNISHED TO THE OWNER AND ENGINEER BY THE OWNERS OF SUCH UNDERGROUND FACILITIES OR OTHERS. THE OWNER OR ENGINEER SHALL NOT BE RESPONSIBLE FOR THE ACCURACY OR COMPLETENESS OF SUCH INFORMATION OR DATA. THE CONTRACTOR SHALL HAVE FULL RESPONSIBILITY FOR CONFIRMING THE ACCURACY OF THE DATA, FOR LOCATING ALL UNDERGROUND UTILITIES, FOR COORDINATION OF THE WORK WITH OWNERS OF SUCH UNDERGROUND UTILITIES DURING CONSTRUCTION, FOR THE SAFETY AND PROTECTION THEREOF AND REPAIRING ANY DAMAGE THERETO RESULTING FROM THE WORK. ALL OF THESE CONDITIONS SHALL BE MET AT NO ADDITIONAL COST TO THE OWNER. THE CONTRACTOR SHALL CONTACT "MISS UT ILITIES' TILITIESn OF VIRGINIA AT 1-800-552-7001 PRIOR TO THE START OF WORK. 2. WHEN WORKING ADJACENT TO EXISTING STRUCTURES, POLES, UTILITIES, ETC., THE CONTRACTOR SHALL USE WHATEVER METHODS THAT ARE NECESSARY TO PROTECT STRUCTURES FROM DAMAGE. ANY DAMAGE CAUSED BY THE CONTRACTOR OR ITS SUBCONTRACTORS SHALL BE THE CONTRACTOR'S SOLE RESPONSIBILITY TO REPAIR OR REPLACE. THIS EXPENSE IS THE CONTRACTOR'S RESPONSIBILITY. 3. REPLACEMENT OR REPAIR OF DAMAGED STRUCTURES SHALL BE AT THE CONTRACTOR'S EXPENSE. 4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROTECTING ALL EXISTING SITE STRUCTURES FROM DAMAGE AND COORDINATING WORK SO THAT THE OWNER CAN MAKE NECESSARY ARRANGEMENTS TO MODIFY/PROTECT EXISTING STRUCTURES FROM DAMAGES. 5. THE CONTRACTOR SHALL BE RESPONSIBLE FOR NOTIFYING ALL UTILITY OWNERS, ADJACENT LAND OWNERS WHOSE PROPERTY MAY BE IMPACTED AND THE VIRGINIA DEPARTMENT OF TRANSPORTATION PRIOR TO COMPLETING ANY OFF -SITE WORK. 6. CONTRACTOR SHALL NOTIFY AND COORDINATE ALL WORK INVOLVING EXISTING UTILITIES WITH UTILITY OWNERS, AT LEAST 72 HOURS PRIOR TO THE START OF CONSTRUCTION. 7. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY (29 CFR PART 1926). 8. THE CONTRACTOR SHALL VERIFY THE LOCATIONS OF ALL BOUNDARIES, BUILDINGS, VEGETATION, AND OTHER PERTINENT SITE ELEMENTS. CONTRACTOR SHALL IMMEDIATELY REPORT ANY DISCREPANCIES BETWEEN EXISTING CONDITIONS AND CONTRACT DOCUMENTS TO THE OWNER AND ENGINEER. 9. CONTRACTOR SHALL SUBMIT FOR THE APPROVAL OF THE OWNER SUBMITTALS OF ALL SPECIFIED MATERIALS LISTED IN THE PLANS, TO INCLUDE SHOP DRAWINGS, MANUFACTURER'S SPECIFICATIONS AND LABORATORY REPORTS. THE OWNER'S APPROVAL OF SUBMITTALS WILL BE GENERAL AND WILL NOT RELIEVE THE CONTRACTOR FROM THE RESPONSIBILITY OF ADHERENCE TO THE CONTRACT AND FOR ANY ERROR THAT MAY EXIST. 10. CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL NECESSARY PERMITS, INSPECTIONS, BONDS, AND OTHER RELATED ITEMS IN ACCORDANCE WITH LOCAL AND STATE POLICY. STORMWATER MANAGEMENT NOTES: 1. THE RUNOFF FROM THIS SITE IS RELEASED AS SHEET FLOW WITHOUT CAUSING DOWN -GRADIENT EROSION OR SEDIMENTATION, MEETING REQUIREMENT 9VAC25-870-66D. 2. WATER QUALITY WILL BE ADDRESSED BY THE DEDICATION OF 1.57 ACRES OF EXISTING VACANT LAND WITHIN THE PROPERTY INTO A SWM FOREST/OPEN SPACE EASEMENT. THIS 1.57 ACRE EASEMENT WILL BE LOCATED IN THE SOUTHEAST CORNER OF THE PROPERTY AND SHALL BE SUBJECT TO STANDARD ALBEMARLE COUNTY OPEN SPACE DEEDS REQUIREMENTS. WITH THIS AREA OF FOREST, THE VRRM SPREADSHEET SHOWS THAT THERE IS NO FURTHER TREATMENT NECESSARY FOR THIS PROJECT. THUS THIS DEVELOPMENT IS IN COMPLIANCE WITH 9VAC25-870-63. MINIMUM STANDARDS (MSS All applicable Virginia Erosion and Sediment Control Regulations and Minimum Standards shall be adhered to during all phases of construction. These include, but are not limited to the following: 1. STABLIZATION OF DENUDED AREAS: Permanent or temporary soil stabilization shall be applied to bare 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 or undisturbed for longer than 30 days. Permanent stabilization shall be applied at areas that are to be left dormant for more than 1 year. 2. STABILIZATION OF SOIL STOCKPILES: During construction of the project, soil stockpiles shall be stabilized or protected with sediment trapping measures. The applicant is responsible for temporary protection and permanent stabilization of all soil stockpiles on site as well as soil intentionally transported from the project site. 3. PERMANENT VEGETATIVE COVER 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 achieve that, in the opinion of the county Inspector, is uniform and mature enough to survive to inhibit erosion. 4. TIMING & STABILIZATION OF SILT TRAPPING MEASURES: 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 OF EARTHEN STRUCTURES: Stabilization measures shall be applied to earthen structures such as dams, dikes and diversions immediately after installation. 6. SEDIMENT TRAPS AND BASINS: A sediment basin shall control surface runoff from disturbed areas that is comprised of flow from drainage areas greater than or equal to three acres. The sediment basin shall be designed and constructed to accommodate the anticipated sediment loading for the land disturbing activity. The outfall device or system device shall take into account the total drainage area flowing through the disturbed area to be served by the basin. 7. GUT AND FILL SLOPES: 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. & CONCENTRATED RUN-OFF DOWN CUT OR FILL SLOPES: 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. WATER SEEPS FROM A SLOPE FACE: Whenever water seeps from a slope face, adequate drainage or other protection shall be provided. 1 O. STORM SEWER INLET PROTECTION: 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. STABILIZATION OF OUTLETS: Before newly constructed stormwater conveyance channels 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. WORK IN LIVE WATERCOURSES: 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. CROSSING A LIVE WATERCOURSE: When a live watercourse must be crossed by construction vehicles more than twice in any six month period, a temporary stream crossing constructed of nonerodible materials shall be provided. 14. APPLICABLE REGULATIONS: All applicable federal, state and local regulations pertaining to working in or crossing live watercourses shall be met. 15. STABILIZATION OF BED AND BANKS The bed and banks of a watercourse shall be stabilized immediately after work in the watercourse is completed. 16. UNDERGROUND UTILITIES: Underground utilities shall be installed in accordance with the following standards in addition to other 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 for dewatering operations shall be filtered or passed through approved sediment trapping device, or both, and discharged in a manner that does not adversely affect flowing streams or offsite 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 these regulations. f. Applicable safety regulations shall be complied with. 17. CONSTRUCTION ACCESS ROUTES: Where construction vehicle access routes intersect paved public roads, provisions shall be made to minimize the transport of sediment by vehicular tracking onto paved surfaces. Where sediment is transported on to a public road surface, the road shall be cleaned thoroughly at the end of each day. Sediment shall be removed 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 lots as well as to larger land disturbing activities. 18.TEMPORARY E&S CONTROL MEASURE REMOVAL: All temporary erosion and sediment control measures shall be removed within 30 days after final site stabilization or after 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 sediment. 19. ADEQUACY OF RECEIVING CHANNELS: Properties and waterways downstream from the development site shall be protected from sediment deposition, erosion and damage, due to increases in volume, velocity and peak flow rates of stormwater runoff for the stated frequency storm of 24-hour duration. 6 Z 0 2 IL N 0 a� N N w 4 w w J 2 J 0 > V) w V 0 Q J w _J N 4 r z U) U > 0 Date 02/13/19 Scale Sheet No. C2 OF S File No. 18.050 ,.P J LOT Fz } BUNDORAN FAQ! NOTE: EXISTING CONDITIONS SHOWN DEPICTING PARCEL PRIOR TO START OF CONSTRUCTION. CONSTRUCTION BEGAN LATE 2018. 0 # 50 100 150 ■� ■,: Scale: , - q"! ()Pk P�R Al RFWAAR1.'F rOl 1,1,.dTY (-,P" � SOIL EROSION & SEDIMENT CONTROL SYMBOLS SYMBOL N 0. TI TLE x -x CONSTRUCTION ENTRANCE SILT FENCE INLET PROTECTION TEMPORARY DIVERSION DIKE TEMPORARY SEDIMENT TRAP 3.18 OUTLET PROTECTION 3.31 TEMPORARY SEEDING 3.32 PERMANENT SEEDING 3.35 MULCHING LIMITS OF DISTURBANCE EXISTING CONTOUR PROPOSED CONTOUR 30 0 30 60 9 0 Scale: KEY 11f,"TE'p LOPLS PAR ALBEMAR'E COUiq,,TY GIS kr) It- ------ j-' '4524"E '1 436 00' S40' 7 . . . ......... CD It, • A I X jl'� N (9'r Irn 0 V, 11 Ji 4 c Pf I? �p OJU\`� CQVER 6 ORE PING`RED.,FESG �--�LL, SLQP THAN 06-' T/O PACE EASE4ENT �,�,,57 ACRES PWIVI rORES �EN S . . . . . . . . TO BE �DEMARCATED PRIOR/ TO START OF CO.NSTRUC I 1UN/ Ix'a � J cp L0 C) fl it .r • f CJ lzc? P�EVIPIJS GRAVE YRIVEWAY TQ BE t 21 R R IEM0VED//ANpn 00 REVEGETATE ... ..... . CD r7 _7 �ESERVE DRAINFIL ... .... it ji 4• A Id ..... ...... It HES/ TABILIZE,,'DIT9 -rELY IMMEDIA ZZ DRAINF(ELD k It A-1 �TE6 Ll X EGTA PRE ly, ER' j LEVEL 13 INI�U 0,NOT DI-STURB _jHI -AREA x 11 z A 'HDIPE Zl� "I FC )R�BAYrAREf T /LEVEL SPREADER W w VE,QETATED LIP c LiMit EC-2 M A-TT1 N G 1 SOIL EROSION & SEDIMENT CONTROL SYMBOLS 'A SYMBOL N 0. TITLE KEY Am C8 X, 0', 0 C 3.02 CONSTRUCTION ENTRANCE CE x x 3.05 SILT FENCE SF 3.07 INLET PROTECTION IP pr _p' 3.09 TEMPORARY DIVERSION DIKE DD [DRAWN TO SCALE] 3.13 TEMPORARY SEDIMENT TRAP ST 3.18 OUTLET PROTECTION OP IT TS E 3.31 TEMPORARY SEEDING TS PS 3.32 PERMANENT SEEDING PS 3.35 MULCHING MU LIMITS OF DISTURBANCE EXISTING CONTOUR 0 n00UF*% CONTOURIN r'% ENE!" E DV­ Isite information Post -Development Project (Treatment Volume and Loads) Dsoh T. b . .'-d land liS 1CnAant T"I 'T", Land Cwer Suilin1w Sp— C—r (acres) 1,d C,,,­ J.­,) Wrelghled F, (.0) % M—S'd Turf Sac aria S1. a, R ... if C..ffld..ts (Hv) A U TP 1-d (1bjW) Jog"&_.VRRM SPREADS.HEET URI: soo A 'a go, LAND COVER LEGEND SYMBOL DESCRIPTION AREA HSC A HISC B N/A OPEN SPACE 1.57 AC MANAGED TURF 2.31 AC IMPERVIOUS 0.27 AC TOTAL DISTURBED 2.57 AC AREA ' I r C 1 I I S� 0°?-5'2�'E 1 43 _�.00' , t CD _ _ i r _ 01 f \ f l � � V \ 00 � l jJ c� 'V O ' ' LD F 1 r \ / I �r" CD I N % q 1 + C=0.4, A 0.09'i4CRE / Zl _ i �5 �1 t I A 0.0 ACRES; .� �' A O,F�7 A RES � LEVEL SPREADER CALCULATIONS: �� WATER QUALITY VOLUME CALCULATED USING,/ RATIONAL METHOD WITH 1 INCH/ HR STORM Q = ((0.48*0.06)+(0.47*0.09))*1 = 0.07 cfs LEVEL SPREADER LENGTH %" '`� I 4P y REQUIREMENT = 13 LF PER 1 CFS, i i— MINIMUM 13 LF. LEVEL SPREADER TO BE QUILT 13 LF FOREBAY CALCULATIONS: % + FOREBAY MINIMUM 1 DEPTH. SURFACE AREA MUST BE 0.2% OR MORE OF CONTRIBUTING DRAINAGE AREA. `� IN FOREBAY SURFACE AREA \ < t l REQUIREMENT: 63 SF \ \ PROVIDED: 290 SF JUTE, OR EXCELSIOR OR EQUIVALENT STAPLED IN PLACE7 VARIABLE (MIN. 7') BURIED 6" MIN. ---\ 6" MIN.- ,� ,. 7ti LEVEL LIP OF SPREADER — A41N- 6' K�1�LEVEL SPREADER DETAIL C7 /1—No-r le 2:1 OR FLATTER \ CC C0.49 , � 1_- Stormwater Conveyance Channel Section SCC Lining Channel Channel Channel2—Yr Side 10—Yr Number Depth Width Slope Velocity Depth 1 EC-2 Matting 0.5 2.0 2:1 2.61 0.23 2 EC-2 Matting 0.5 2.0 2:1 2.38 0.20 3 EC-2 Matting 1.0 4.0 2:1 2.28 0.21 4 EC-2 Matting 1.0 4.0 2:1 2.35 0.22 IWidth _I 0SCC C7) Not To Scale th ! 0 30 •i 9 MMMM iM .- 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. WMAX. FLOW ,-- _=-1: . 3. STAPLE FILTER MATERIAL TO STAKES AND EXTEND IT INTO THE TRENCH. .villa I ` SHEET FLOW INSTALLATION (PERSPECTIVE VIEW) r- 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. FLQeW��C POINTS A SHOULD BE HIGHER THAN POINT B. DRAINAGEWAY INSTALLATION (FRONT ELEVATION) �Not To Scalem CONSTRUCTION ACCESS -� � �.- ..3" SM-2A ASPHALT TICIP 3}j COURSE " M111. 21A A`}Gii'EGA,IE LEA SI" 'PRQFI E 7 STONE�+' t�#fN. C0 NsTfwC`r'I0 iTiFIHALT PAVED ACCESS -� 0 f WASHRAC a 2 2 c 2 12' MIN.* �,... Ltl---PO�;iTIVE DFA.INAGE *MUST EXTEND FULL WIDTH 'A r0! SEDItvl EINT OF INGRESS AND EGRESSS � TRAPPING, DEVICE OPERATICN PAN FILTER C10T-I EXISTING PA EMI" NT EXI STING PAVE.,ME,q r 12' MIN , POSi"rWE DRAINAGE TO SE IrMEI��IT °, TRAPPING DEVICE ;Eimer rum Water tap of 1 iltclt tntl t be installed with a t7lhiill 1111 T inch ballcocl slnttoff valve suj)pblt g a was'll hose with a (Iii' meter of 1.5 aches for t,tl quite COII wit p;ressttre. W1, sh water atust be cart ied away fir °om the eiitratice to ali approved ed E ettliiig area to rent ve sed tnetit, _AN sediment s'haLl be pre- Tented from emeriti ,stortit drains, ditches Of watercrntrse'.�. NO SCALE D2 CONSTRUCTION ENTRANCE(CE ,8 Not. To, Scale - 1992 3.35 TABLE 3.35 -A ORGANIC IvI.CH MATERIALSAND APPLICATIONAPPLICATIONRATES RATES: lvitlLC;H)ES: NOTES: Per Acre Per 1000 sq. ft. Straw or Hay 1; - 2 tons 7(} - 90 lbs. Free from weeds and (Minimum(Miaimu2 matter. Must be anch PERMANENT SEEDING SPECIFICATIONS FEBRUARY 16 THROUGH APRIL 30: Kentucky 31 Fescue - 128 Ibs jacre; Red Top Grass - 2 Ibsfacre; Annual Rye - 20 Ibsfacre. Add 20 Ibs/acre Indian grass when slopes are greater than 3:1. MAY 1 THROUGH AUGUST 15: Kentucky 31 Fescue - 128 Ibsfacre; Red Tap Grass - 2 Ibsfacre; Foxtail Millet - 20 Ibsfacre. Add 20 Ibsfacre Indian grass when slopes are greater than 3:1. AUGUST 16 THROUGH OCTOBER 31: Kentucky 31 Fescue - 128 Ibsfacre; Red Top Grass - 2 Ibsfacre; Annual Rye - 20 Ibs/acre. Add 20 Ibs jacre Indian grass on slopes greater than 3:1. NOVEMBER 1 THROUGH FEBRUARY 15: Kentucky 31 Fescue - 128 Ibs jacre; Red Top Grass - 2 Ibs f acre; Winter Rye - 20 Ibs jacre. Add 20 Ibs jacre Indian grass on slopes greater than 3:1. MULCHING SPECIFICATIONS: Straw or hay at a rate of 2 tons/acre. Must be anchored. Spread with mulch blower or by hand. LIME AND FERTILIZER SPECIFICATIONS: Lime and fertilizer needs should be determined by soil tests. Soil tests may be preformed by the Cooperative Extension Service Soil Testing Laboratory at VPI&SUS or by a reputable commercial laboratory. Information concerning the State Soil Testing Laboratory is available from CITY Extension Agents. Under unusual conditions where it is not possible to obtain a soil test, the following soil amendments will be applied: For Permanent Seeding: Seeded areas shall be limed at a rate of 2 tons per acre, and fertilized at a rate of 1,000 Ibs. per acre of 10-20-10 (10 Ibs. per 1,000 square feet) or equivalent. For Temporary Seeding: Seeded areas shall be limed at a rate of 2 tons per acre, and fertilized at a rate of 600 Ibs. per acre of 1 a-20-1 a (1 a Ibs. per 1,000 square feet) or equivalent. 1w,"Not To Scale 9 .0' (MIN.) 'IPE OUTLET TO WELL ?EFINED CHANNELFILTER CLOTH KEY IN 6"-9"; RECOMMENDED FOR ENTIRE PERIMETER Mik- �..i�s±•�rafasi�_i:�iMkOUTLET PROTECTION �"V �- ENDWALL T DISTANCE IS 6' MINIMUM IF FLOW IS TOWARD EMBANKMENT FLOW s CULVERT INLET PROTECTION (IP) C8 Nat Ta Scale at�:t�i COUNTY OF HLBE1ViA%LE Department of Community Development Ez" �4r Construction Recor+d rains (As -built) for VSIViP ORIGINAL -,� GROUND ELEV. L=A Area 2 1.0' DRY STORAGE p2 ? 67 CU. YD./ACRE AWL H � EL=B Area 1 WET STORAGE 67 CU. YD./ACRE D 1 _ (EXCAVATED) EL=C FILTER CLOTH ` ORIGINAL GROUND ELEV. ** *SEE PLATE 3.13-1 COARSE AGGREGATE CLASS I RIPRAP CROSS SECTION OF OUTLET CLASS I RIPRAP LENGTH=6 FEET X DRAINAGE AREA ACREAGE �, v % DI DIKEON f� COARSE AGGREGATE EXCAVATED � FILTER CLOTH AREA �*COARSE AGGREGATE SHALL BE VD4T #3, #357 OR #5 OUTLET (PERSPECTIVE VIEW) Sediment Trap Design Data Not To Scale Weir DA Wet D1 Wet Vol. Dry D2 Dry Vol. No. A B C H (ft.) Z (ft.) Length (Acs.) Vol. (ft.) Cy Vol. (ft.} Cy (ft.) (Req.) (Prov.) (Req.) (Prov.) 1 712.00 710.00 707.00 1.0 ( 3 4 0.73 48.9 3.0 49 48.9 2.0 59 The following is a list of information rewired on construction record drawings for storrnwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the construction record drawing be prepared by someone other than the designer. Please do not provide design drawings as construction record drawings, A. A. signed and dated professional seal of the preparing engineer or surveyor. B. The name and address of the firm and individual preparing the drawings on the title sheet. C. The constructed location of all items associated with each facility, and the inspection records to verify proper dimensions, materials and installation. The items include, but are not limited to the following. 1. Inspecti©n Records and photographs for pipe trenches and bedding, including ttnderdrains. 2. Video Pipe inspection for any pipes which are not accessible or viewable. 3. Updated Location with geo-coordinates of all facilities. 4, Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities. 5. Current physical and topographic survey for all earthen structures. fonds should include a survey of the pond bottom. Surveys should verify pond volumes are per design. Corrections may be required for alterations from the design. 6. Plants, locations and type. 7. Plans and profiles for all culverts, Pipes, Risers, Weirs and Drainage Structures -Display the installed type of drainage strttctttres, culvert/pipe size, weirs, materials, inlets or end treatment(s), inlet and outlet protection, alignment and invent elevations compared to design. 8. Computations: For significant deviations from design, provide sealed computations verifying that the as -built condition is equivalent or better than design. 9. Ditch dines -Display the constructed location of all ditch lines and channels, including typical sections and linings. 10. Easements -Show all platted easements with dead book references labeled. Facilities and drainage must be within platted easements. Provide copies of recorded documents. I l . guardrail, fences or other safety provisions -Display the constructed location of all safety provisions; fences, guardrail, including the type, length and applied end treatments, compared to design. 12. Material layers - biotilter media, stone layers, sand layers, keyways and cores must be verified as to material types and depths. Include inspection reports, boring or test pit reports and materials certifications. Siotilter media must be an approved state mix. 13. access roads -show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports are required to verify fill compaction in dams. 15. Manufacturers certifications for proprietary I;IVIi''s certifying proper installation and functioning. DIVERSION DIKE Comaacted Soil 4.5' min. TEMPORARY DIVERSION DIKE (DD) Not To Scale N 0 rn N � N w 4 w > H � W s _j (7 > z w W Q 0 w � � U TEMPORARY