Loading...
HomeMy WebLinkAboutWPO202200017 VSMP - SWPPP 2023-03-17VSMP PLAN LEGEND EXISTING NEW DESCRIPTION BENCHMARK SITE PROPERTY LINE ADJACENT PROPERTY LINE BUILDING SETBACK D D o- D D PARKING SETBACK 10 10 PARKING COUNT - _510- - 10 INDEX CONTOUR �08 12 INTERVAL CONTOUR 311.5 x + 1� SPOT ELEVATION 311.5 TC x + 1�ry + 1� TOP OF CURB/BOTTOM OF CURB ELEVATION 311.5 TW x + 1� TOP OF WALL ELEVATION 311.5 BW x t11 BOTTOM OF WALL ELEVATION - "' . "' - STREAM - STREAM BUFFER 100 YEAR FLOODPLAIN BUILDING RETAINING WALL ® RETAINING WALL HATCH RAILING STAIRS EDGE OF PAVEMENT - - ROAD CENTERLINE FRONT OF CURB BACK OF CURB CG-12 TRUNCATED DOME SIDEWALK BIKE PARKING HANDICAP ACCESSIBLE AISLE HANDICAP PARKING CROSSWALK CONCRETE ASPHALT RIPRAP EC-2 MATTING EC-3 MATTING 0 WETLAND TREELINE X X FENCE -0- -0- UTILITY POLE m m GUY WIRE oHu DHu OVERHEAD UTILITY ucu -ucu UNDERGROUND UTILITY OHE OVERHEAD ELECTRIC UGE UNDERGROUND ELECTRIC Fo FIBER OPTIC Al STORM STRUCTURE NOMENCLATURE STORM MANHOLE q ® q DROP INLET (CAST INPLACE/PRECAST) STORM SEWER PIPES RD RD ROOF DRAIN SANITARY STRUCTURE NOMENCLATURE ® SANITARY MANHOLE SANITARY SEWER MAIN S S SANITARY SEWER LATERAL W W WATER LINE ws ws WATER SERVICE LINE O ® O WATER METER (WM>1",WM<1") ev ®V WATER METER VALVE FHA ot FHA FIRE HYDRANT AFDC A FDc FIRE DEPARTMENT CONNECTION GAS GAS GAS LINE EASEMENTS -,..-- -.,.-- CONSTRUCTION/GRADING -,-,- -.-.- ACCESS - - - - - - - - SIGHT DISTANCE - UTILITY STORMWATER DRAINAGE SANITARY SWM FACILITY - - - . - - GASLINE OWNER/DEVELOPER Cameron Property Cville LLC 6805 Morrison Boulevard Suite 250 Charlotte, NC 28211 DISTRICT Rio Magisterial District ZONING TMP 45-100, 45-100A, 45-101, 45-101B Managed Slopes Overlay District (SS-M) NMD-Neighborhood Model District ZMA201800013 (Rio Road W) was approved on July 17, 2019 ZMA201800013 includes application plan, proffers, and code of development Rio29 FBC District - Core Area along Rio Road frontage and Flex Area behind Core. AIA - Airport Impact Area EC - Entrance Corridor Note: ZMA201800013 and ZMA201800013, along with all application plans, proffers, and codes of development are no longer be valid with approval of a final site development plan under the Rio29 Form -Based Code. TMP 45-100B C1 - Commercial AIA -Airport Impact Area EC - Entrance Corridor Rio29 FBC District - Core Area along Rio Road frontage and Flex Area behind Core. Note: Parcel 45-100B is approved for development per SDP201300063. SDP approval vacated with the approval of this plan Note: The subject properties, being TMP 45-100, TMP 45-100A, TMP 45-100B, TMP 45-101, and TMP 45-10013, are opting into the Rio29 Form -Based Code District. PROFFERS PER ZMA201800013 Proffers, application plans, and codes of development approved in conjunctions with NMD zoning of this site shall no longer be valid with approval of a final site development plan utilizing the Rio29 Form Base Code District standards. SOURCE OF TITLE DB 2130 P25, P27, P28 (parcel 45-100 (0.78 acres)) DB 4509 P48, DB 1292 P131 (plat), DB 297 P544 (plat) (parcel 45-100A (0.77 acres)) DB 4356, P399 (plat) (Parcel 45-10013 (0.76 acres)) DB 2130 P25, P27, P28 (plat), DB 996 P650 (plat) (parcel 45-101 (1.32 acres)) DB 2130 P30, DB 2130 P25, P27, P28 (plat) (parcel 45-101 B (0.44 acres)) SOURCE OF BOUNDARY AND TOPOGRAPHY Boundary and Topographic Information was compiled from an ALTA/NSPS Land Title Survey Plat prepared by Roger W. Ray & Assoc., Inc. on August 13, 2018 and revised on February 26, 2019. Boundary and Topographic Information for TMP45-100B was obtained from Foresight Survey P.C. on 10/27/2022 BENCHMARK Datum for topography is NAVD 1988 FLOODZONE FEMA flood insurance rate map (community panel 51003CO278D), effective date February 4, 2005 shows this property within zone "x" and no portion of the property within the 100-year flood plain. RESERVOIR WATERSHED This site is within the South Fork Rivanna River Watershed. This site is not within a watershed of a public water supply. WATER & SANITARY SERVICES This project lies within the Albemarle County Service Authority Jurisdictional area for both water and sewer. An existing sanitary sewer line is located on the property and an existing waterline is located along Rio Road West. EXISTING USE Single Family Residential and Undeveloped PROPOSED USE Tree Clearing Work Future Use: Permitted Use is proposed per Sec.20C.6: 5-Story 110,770 GSF Multi -Family building with Commercial space (Core) 5-Story 94,212 GSF Self -Storage building (Core) (Retail sale & service) 0.43 acre Linear Park (Flex) (Per regulating Plan) LAND USE SCHEDULE Existing SF AC % Building 1,451 0.03 0.8% Pavement/concrete 8,760 0.20 4.9% Impervious 10,211 0.23 5.8% Turf 140,289 3.22 79.0% Woods 26,984 0.62 15.2% Total 177,484 4.07 100.0% Proposed SF AC % Building 1,451 0.03 0.8% Pavement/concrete 8,760 0.20 4.9% Impervious 10,211 0.23 5.8% Turf 112,272 2.58 63.3% Mulch 55,001 1.26 31.0% 664 WEST RIO TAX MAP 45 PARCELS 1005 100A, 100B, 101, and 1016 WP02022-00017 Total 177,484 4.07 100.0% STEEP SLOPES Preserved slopes are not present on the property. Managed slopes are shown on Sheet C2 with labels showing which slopes are to be disturbed. 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 Utilities" of Virginia at 1-800-552-7001 prior to the start of work. 2. When working adjacent to existing structures, poles, etc., the contractor shall use whatever methods that are necessary to protect structures from damage. Replacement of damaged structures shall be at the contractor's expense. 3. 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. 4. 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. 5. Contractor shall notify and coordinate all work involving existing utilities with utility owners, at least 72 hours prior to the start of construction. 6. Contractor shall immediately report any discrepancies between existing conditions and contract documents to the owner and engineer. 7. 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 the contractor from the responsibility of adherence to the contract and for any error that may exist. 8. All bare areas shall be scarified, limed, fertilized, seeded and mulched. 9. All trees, saplings, brush, etc. shall be removed from within the right of way and the drainage easements. 10. Visibility of all mechanical equipment from the Entrance Corridor shall be eliminated. 11.Retaining walls require separate building permits. 12. All water service lines, sanitary laterals, and sprinkler lines must be visually inspected by the Albemarle County Building Department from the main to the structure. 13.Accessible parking spaces, access isles, and accessible route shall be installed in accordance with ICC ANSI A117.1-09 and the 2018 Virginia Construction Code 14. Where the flood level rims of plumbing fixtures are below the elevation of the manhole cover of the next upstream manhole in the public sewer, the fixtures shall be protected by a backwater valve installed in the building drain, branch of the building drain or horizontal branch serving such fixtures. Plumbing fixtures having flood level rims above the elevation of the manhole cover of the next upstream manhole in the public sewer shall not discharge through a backwater valve. 15. All roof drains shall discharge in a manner not to cause a public nuisance and not over sidewalks. 16. Buildings or structures built before January 1, 1985 must have an asbestos survey performed in order to apply for a demolition permit. Asbestos removal permits are required if positive for such from Albemarle County and VDOLI. Contact VDOLI for their additional requirements and permits for demolition projects at 540-562-3580 x131. 17.All water, sewer and fire lines require NEW inspection and testing procedures. The ACSA performs any testing and inspections of the public sewer and water main(s). 18. The Albemarle County Building Inspections Department(ACBID) does a visual inspection and Wtnesses the testing of the building drain, water service pipe and the sprinkler lead-in connection. 19. The developer/contractor is responsible to retain a Special Inspector as outlined in the updated Albemarle County Policy for Site Utilities to perform the visual inspection and testing of all utilities 20.not covered by the ACSA or ACBID. This includes building sewers, water and fire line branches between the main and the meter(s)/building(s). 21.The Special Inspectors report must be submitted and approved by the Albemarle County Engineering Department prior to a Certificate of Occupancy being issued. VDOT NOTES VDOTs land development south staff (540-967-3715 or 540-967-3716) shall be notified 48 hours in advance of any anticipated road/shoulder closures", "The permittee or his or her designee shall report all work zones in the VDOT right of way on a daily basis at set up and take down to VDOTS Smart Traffic Center (540-332-9500)", "Copies of all independent testing reports to be submitted to VDOT for verification", "A minimum 48 hours advance notification of a proof roll of both the subgrade and stone base is required by VDOT." "All areas excavated below existing pavement surface and within clear zone, at the conclusion of each workday, shall be backfilled to form an approximate 6:1 wedge, against the existing pavement surface for the safety and protection of vehicular traffic." And that "Traffic shall be maintained during construction of the tie-in and mill of the adjacent travel lanes." "water lines, sewer lines, etc. crossing future VDOT maintained roads have to be sleeved with ductile iron pipe "two (2) times diameter of the utility line)." And "A video (3 electronic copies to VDOT) of all stormwater systems carrying VDOT runoff or runoff under a future state road is required to be submitted to VDOT for review and approval prior to paving operations. GENERAL CONSTRUCTION NOTES 1. Prior to any construction within any existing right-of-way, including connection to any existing road, a permit shall be obtained from the Virginia Department of Transit (VDOT). This plan as drawn may not accurately reflect the requirements of the permit.Where any discrepancies occur the requirements of the permit shall govern. 2. All materials and construction methods shall conform to the current specifications and standards of VDOT unless otherwise noted. 3. Erosion and siltation control measures shall be provided in accordance with the approved erosion control plan and shall be installed prior to any clearing, grading or other construction. 4. Al slopes and disturbed areas are to be fertilized, seeded and mulched. 5. The maximum allowable slope is 2:1 (horizontle:vertical). Where reasonably obtainable, lesser slopes of 3:1 or better are to be acheived. 6. Paved, rip -rap or stabilization amt lined ditch may be required when in the opinion of the County Engineer or designee it is deemed necessary in order to stabilize a drainage channel. 7. All traffic control signs shall conform with the Virginia Manual for Uniform Traffic Control Devices. 8. Unless othrewise noted all concrete pipe shall be reinforced concrete pipe - Class III. 9. All excavation for underground pipe installation must comply with OSHA Standards for the Construction Industry (29 CFR Part 1926). ALBEMARLE COUNTY, VIRGINIA VICINITY MAPSCALE : 1°=1000' RIDGE `FOUIdFASONS Agnor Hurt Goodwill Stor,9:8 v Elementary School V �� Donation Center Ali°o06 J 1,° 20 °¢ �P T.JaMaxx I Co Q QJOANN Fabric and Crafts nod w:' TobeysPawn SlOcQm �'o erc,.o Po t°s/ SITE o WOODBROOK BERKMAR d0. J' acac Fitness &Wellness _ Center Albemarle uare 41 VILLAGE OFFICE a" CONDOS A /\ / o ALD19 63 RAINT 1403 Pa,kinq Lci9 BERKELEY tesvil le o Square Map provided by Albemarle County GIS Map Services RIO EAST PROFESSIONAL SHEETINDEX C1 COVER SHEET C2 EXISTING CONDITIONS C3 EROSION & SEDIMENT CONTROL NARRATIVE C4 EROSION & SEDIMENT CONTROL PLAN -PHASE 1 C5 EROSION & SEDIMENT CONTROL SHIMP DETAILS C6 STORMWATER DRAINAGE AREA ENGINEERING 2. MAPS & CALCULATIONS LAND PLANNING - PROJECT MANAGEMENT AREA MAPS AND CALCULATIONS C7 VRRM MAPS & CALCULATIONS 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM U J NT Lie. .45183 6,16 O 0A s4 ftAL VSMP PLAN 664 WEST RIO ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2023.03.15 REVISION: FILE NO. COVER SHEET 18.030 C1 I I I 1I I"—ao SIDEWALK &— CG-6 EX. ENTRANCE UTILITY POLE & LINES EASEMENT TO CENTRAL----- TELEPHONECOMPANY OF VIRGINIA DBA CENTURYLINK D.B. 4716-51 0] O? o a coo U) w =rS Ln a,oCr_ � 0- I r X Ld ly r ( 4 Q - �t X d (N OD Dm C� o EASEMENT TO COMMONWEALTH OF VIRGINIA D.B. 4592-425 STEEP SLOPES OVERLAY (MANAGED) -� 27.76 a \ \ z \ i�l. 1\3 I 11 I �I m \ I OWTN R:44OfV"'D�H x I D.B. 3651-62 D.B. 297-544 PLAT \\ HOLLY D.B. 1292-123 PLAT �\. \ \ TBR) 0.75 ACRES A LOT 1 USE SF&UNDEVELOPED � ` \ MH-1 TOP=489.77 I N V=479.09 EXISTING TREELINE TO BE REMOVED 20' SANITARY SEWER ESMT. D.B. 1270-711, 714 PLAT HOLLY C' STEEP SLOPES ZONED: C1 /AIA/EC/ I _1 I ��� \ ` OVERLAY SS—M, R102p Fk i P=4 (MANAGED) - V5 \ / �\ \ \ LL RE BLOCK \ 1 1 \ \ \ I \ \ \ \\ \ \ \\ GARAGE UP E . 376.@0 \ I 1 I 11 \ \ \ N 9o3 \ \ \\ \ \ �" QUAD. I �` I I � I T.M. 45-173 z4.o' j j\`` 1 d \\ �e \ OWNER: CMA PROPERTIES, INC. Stoop #660 FUEL I I \ \� \\ \HOLLY D.B. 3611-616 PD GUY / & STEPS ONE TANK I I I ,} I \ I 'I \ \� \ \ \ D.BTM13'0-4x 4 PLAT �vM WIRE / o STORY TMI. 45 100B 5X��ISTI G \ 8 \ \ 3.33 ACRES 4 BLOCK n I TREEL IN0 TO I I r I OWNER: r-1001 ON EEMMMM VE I; 'I \ USE: AUTO SALES SERVICE ON 8E R O D I x \ HOLLY / I BASEMENT I PF�OPER2TY CVILLE LI�C 24"� I \ / / TELEPHONE 4.0' INSTRUMENT I � POPL`PRl \ \ �9 ZONED: ZM A2014-0008 P I BOX I j #2 220p013�42 I (TER)` \ " \ \ V\ \Q HC/AIA/ EC/SS-M/R1029 FBC RETAI ALL 7 76 ACRES r\ TM. 45 1 �1 15" RED ALL COVEIRED I / I I I '•N OWNER: CA OAK % / Y d l \ OPERTY VI LE\ PoacH USE: F& DE EL P I \ 1�" BEECH d a0N D: A v A 15" \ LLC. A /'LC 02 FBG OPLAR I ° \ POYR \\ ': '•d.B. 2130-25' \ \\\ %\ B. 2130-30�f 12"\POPLAR 18" RED / I oue e ` . \ EXISTING ci / (TB R :2. 1 & 28 PLAiT \ x \ z OAK EELINE T by / / I 36" p\44 ACRES \ \ oa \ (TBR) BI REMOV 3a .83' / / / � ` \ / 39°13'53" w 18" MAPW ` J UStr: VACANT\ \ \\\ \ \ 1 STORYj TM.145-1100F1 (TBR) / `I \ZONED \ W/ BSMT CON OWNER: CA0EROM1N PF OPE TY 18" PoP4AR (TBR) + NNN �AYA/EC/R102 \ \\ \ / I / BLOCK WA I C\IILLE,I LLCI I I 1 SANITARY $EWE 2,4` \ '�/SS-M \ \ \ D.�q.I 45b9-�8 (ESMT. MAPIL \ I DIECK D.B. 1292 131 PLAT e IDB. 127\0-721 (�R), \ \\ I I I I ( \ rt \ \ \ \ I \ \ � \ INV�479.69 \ WALL \ D.B. 297-544 PD4T \ �' \ Nv 47s.81 \ \ROCK \ \ 0.77 ACRES \ \ \\ \\ \\ \\ \\ \` V �� \ INV=(79.86 \ \ \ \ USE, SF&\UNDEV' LOPE\Q \ \ \ \ \ ZONED\NMb(AIA/ES�R109 \ \\ \\ \ 1� \\ \\ ROAD / I II \ /°'"\\ \ \ \\ \\ \ \FBC/SS—M \ \\ \\ (TBk) PINES "a / X \ \ 15"\� \ e SIGN ' \ Ml% CH PILE \ �• \ \ \ \ \ GRAVEL Ate. l/ A V A A \ rn A _ �ARE/1 1\ V A V A \ \ ARY LINE a A \ \\ \\ mil UTILITY \ \ STING�BOUN V A \ \ .•� �, `.-.,_ POLEV GUY LINES \SANITA Y SEWER ESMT. 1 D.B. 1�70-701, I o `4 \ \ \ 1 \ \ \ T. 764 PLAT EX. TEL�" 11 \�/ STEEP\SLOPES \ N TM.I 45 1OO \ \ \ \ 1 \ \ \\ \ ____ OVERLAY I \ \ I \ \ 26' SANITA Y L' I 1 (MAN�•GED) \ - CAM RONI PR*RTY\ \ \ \ \ \ S�WER ESM�. RED, UTI �TY I w A `" \c- D.B. A1270-711 CVILLE, LLC. DASFH u \ MANH LE I '� I m 1714 PLAT\ / (TO R '�IN) I _ / V I b.B. �130425, A \ V A REPf�ESENT)NG TH 1 A /30" OAK I q / 2\7 & 28 P\AT \ \ Z6 SNG NVIS10 / I •� 78 CRE�y \ \ 1 R1029\ FBC 4 FLEX\ \ (�R) T �ti 11 \I ��UAREA SE:CANT\ \\ \I I RI(J29 fjBC -\'GORE \I 11 1 Ex. ReAD I EI➢: NMD\/AIA/EC/ \ / (AREA\ (APPROX.) I 1 10�9 FBC�/SS-IM I ,r 36" WHITE QED OAK o OAK �TBR) / I /(TER) 24" _- I BOUNDARY ILINE 1 1 ULCH E 1STINGII II ILE240 RED I I OAK `tTBR) PRIVATE SIGNI EX. 10' DI-3B� TOP=527.78 BENCHMARK: TOP OF DROP INLET ELEVATION=527.78 o / / / TM. 4 -101 1 1 1 1 1 POLE -- / OWNER: CAMERbN -- PROPERTY CVILLE,I LLC. / D.B. 21130-30 -----' / D.B. 996-650 PLAT I // // / D.B. 21 0-2�, 27 !y-28 PI AT 20' SAS ITARY- / / Y.32 ACRES // / / // // / SEWER ESMT. I i / USE: V�('ANT / / // // b.B. 1709 PLAT ZONED:1NMD/AIA///EC//\119 � RIq2�9 FBC//S-M/ \� \ \ - [EXISTING \ \ TREELINE 'rp I \ BE�REMOVED\ \ '- / / I NITARY ESMT, \ \ D.B` y063-609 CU B I I N + S4526"'W 407.54 I I30' JOINT ACCESS ESMT. - 1 D.B. 1037-527 = T.M. 45-105 D.B. 1035-465 PLAT AOD OWNEPMM -ASSET OB8L.L.C. 'K&E .170-119PROTECTION TRUST, 1005-225 PLAT GEOFFREY D. KILMER AND 2325-437, 441 DENISE B. PLAT D.B. 4755-449 01 ACRES D.B. 1886-91 PLAT LF-STORAGE D.B. 1005-225 PLAT DATED A1990-00027/ APRIL 28, 2016 /AIA/EC/ 0.98 ACRES FBC/SS-M USE: OFFICE/RETAIL ZONED: C-1 /AIA/EC/ R1029 FBC/SS-M PROPERTY LINE-4_L ACCORDING TO 1 I A PLAT RECORDED �J D.B. 90{1-631 I / I 1, I I RIP -RAP .N/ DITCH (TO REMAIN) i I ` EXISTING TREELINE TO BE REMOVED STEEP SLOPES OVERLAY (MANAGED) IF PROPERTY LINE—\� f ACCORDING TO PLAT RECORDED IN D.B. 996-650 -\ SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM '�I27, 631 PLAT NV r1� iu �rurvu- �INV 169, 172 PLAT Lic. .45183 `INv 3 ACRES rdd 3lisI23 q� BOUN ALES/SERVICE OVER 994-00023/ ASS" ACRE /EC/ — FBC Co BOUNDARY OV 0.027 ACRE VSMP PLAN \ OVERPAYLDPES OPERTY LINE 664 WEST RIO PR / ACCORDING TO PLAT (MANAGED) Y / / + RECORDED IN D.B. 1005-225 I I n°i k/ STEEP SLOPES oZgy-L� OVERLAY J (MANAGED) ALBEMARLE COUNTY, VIRGINIA PROPERTY LINE / ACCORDING TO PLAT SUBMISSION: / RECORDED IN D.B. 996-650 2023.03.15 16.41' /+ a"E REVISION: 6.41' ._ ... FILE NO. 18.030 EXISTING CONDITIONS PROJECT DESCRIPTION, GENERAL NOTES, EROSION & SEDIMENT CONTROL NOTES, AND SEQUENCE OF CONSTRUCTION PROJECT DESCRIPTION THE SITE CURRENTLY IS A GRASSED/WOODED LOT WITH ABANDONED STRUCTURES. THIS PROJECT PROPOSES TREE CLEARING OF THE SITE THE TOTAL AREA OF DISTURBANCE IS 1.48 ACRES. EXISTING SITE CONDITIONS THE SITE CURRENTLY IS A GRASSED/WOODED LOT WITH ABANDONED STRUCTURES. ADJACENT PROPERTIES THE SITE IS BOUNDED BY OTHER COMMERCIAL USERS SUCH AS CAR DEALERSHIPS TO THE NORTH & NORTHEAST, SELF STORAGE BUILDINGS TO THE EAST, RIO ROAD WEST TO THE SOUTHWEST WHILE IT IS ABUTTED BY RESIDENTIAL HOUSES AND BERKMAR DRIVE TO THE NORTH WEST. THE SITE IS APPROXIMATELY 320 FT FROM THE BERKMAR DRIVE AND RIO ROAD WEST INTERSECTION AND APPROXIMATELY 1100 FT FROM RIO ROAD WEST AND SEMINOLE TRAIL (STATE ROUTE 29) INTERSECTION. OFF -SITE AREAS THERE ARE NO OFFSITE ACTIVITIES. SOILS THE SITE IS COMPRISED OF: 1- 27B - ELIOAK LOAM, 2 TO 7 PERCENT SLOPES, HSG: B 2- 27C - ELIOAK LOAM, 7 TO 15 PERCENT SLOPES, HSG: B 3- 34 C - GLENELG LOAM, 7 TO 15 PERCENT SLOPES, HSG: B CRITICAL EROSION AREAS THERE ARE NO CRITICAL AREAS ON THIS SITE. EROSION & SEDIMENT CONTROLS UNLESS OTHERWISE INDICATED, ALL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO THE MINIMUM STANDARDS AND SPECIFICATIONS AS SET FORTH IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, LATEST EDITION. THE MINIMUM STANDARDS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL REGULATIONS SHALL BE ADHERED TO UNLESS OTHERWISE WAIVED OR APPROVED BY VARIANCE. TEMPORARY CONSTRUCTION ENTRANCE (CE) - 3.02 A STONE PAD WILL BE CONSTRUCTED AT THE ENTRANCE THE 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. STORM DRAIN INLET PROTECTIONOP) - 3.07 THE INSTALLATION OF VARIOUS KINDS OF SEDIMENT TRAPPING MEASURES AROUND DROP INLETS OR CURB INLET STRUCTURES PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA; LIMITED TO DRAINAGE AREAS NOT EXCEEDING ONE ACRE, AND NOT INTENDED TO CONTROL LARGE, CONCENTRATED STORMWATER FLOWS. STD. AND SPEC. 3.07. SILT FENCE SF - 3.05 SILT FENCING WILL BE INSTALLED AS A FIRST STEP IN CONSTRUCTION ACTIVITIES. LOCATION AND DETAILS ARE SHOWN ON THE PLANS. TEMPORARY SEEDING TS - 3.31 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 14 DAYS. TEMPORARY SEEDING SHALL BE APPLIED IN CONFORMANCE WITH STD. AND SPEC. 3.31. MULCHING (MU) - 3.35 ALL SEEDED AREAS SHALL BE MULCHED WITH STRAW IMMEDIATELY FOLLOWING SEEDING OPERATIONS. STRAW MULCH SHALL BE APPLIED AT A RATE OF TWO TONS PER ACRE. MANAGEMENT STRATEGY AND SEQUENCE OF CONSTRUCTION THE FOLLOWING ARE THE PROPOSED MANAGEMENT STRATEGIES AND DETAILED SEQUENCE OF CONSTRUCTION. REQUIRED PERMITS MUST BE IN -HAND BEFORE WORK BEGINS: PHASE 1 1. INSTALL CONSTRUCTION ENTRANCE ON AS SHOWN ON THIS PHASE. 2. INSTALL INLET PROTECTION ON THE INLET ON RIO ROAD W AS SHOWN. 3. INSTALL WIRE SILT FENCE ALONG THE AREA SHEET FLOWING TO STREAM DIRECTLY. 4. CONTACT THE ENGINEER AND ALBEMARLE COUNTY FOR INSPECTION AND APPROVAL OF ALL E&S CONTROL MEASURES. 5. UPON APPROVAL OF E&S CONTROL, START CLEARING THE TREES AND MAINTAIN E&S MEASURES EROSION & SEDIMENT CONTROL NOTES: 1. ALL VEGETATIVE AND STRUCTURAL EROSION & SEDIMENT CONTROL (E&S) PRACTICES WILL BE CONSTRUCTED AND MAINTAINED IN ACCORDANCE WITH THE MINIMUM SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATION 9VAC25-840-40. 2. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO COMMENCEMENT OF LAND DISTURBING ACTIVITY AND ONE WEEK PRIOR TO FINAL INSPECTION. THIS REQUIREMENT CAN BE WAIVED AT THE DISCRETION OF THE PLAN APPROVING AUTHORITY. 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 ONSITE AT ALL TIMES. 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTRY EROSION AND SEDIMENT CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN REVIEWING AUTHORTY. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION AND SEDIMENT CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN REVIEWING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABALIZATION IS ACHEIVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALY AND AFTER EACH RUN-OFF PRODUCING STORM EVENT. ANY NECESSARY REPARIS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10. INSTALL AND MAINTAIN CONSTRUCTION ENTRANCES FOR ENTIRE PROJECT AT ALL LOCATIONS WHERE VEHICLES ENTER/LEAVE THE WORK AREA AND WHERE SOIL IS STOCKPILED. 11. MAINTAIN ALL EROSION AND SEDIMENT CONTROL UNTIL THE COMPLETION OF FINAL STABILIZATION. UNLESS OTHERWISE NOTED ON THE PLANS REMOVE ALL EROSION & SEDIMENT CONTROLS FOLLOWING THE ESTABLISHMENT OF A PERMANENT VEGETATIVE COVER AND COMPLETION OF FINAL STABILIZATION. 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. 3. ANY WASTE DISCOVERED DURING THE PROJECT SHALL NOT BE MOVED WITH OUT PRIOR AUTHORIZATION OF THE OWNER AND BE DIRECT -LOADED INTO COVERED ROLL -OFF CONTAINERS FOR TEMPORARY STORAGE PRIOR TO DISPOSAL IN A PERMITTED LANDFILL. EROSION & SEDIMENT CONTROL PERMITTING 1. 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. CONSTRUCTION MAINTENANCE THE FOLLOWING CONSTRUCTION MAINTENANCE PRACTICES SHALL BE FOLLOWED AT THE SI TE. 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. 1. 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. 2. 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. ALBEMARLE COUNTY 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 3. MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. 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 RUNOFFPRODUCING 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:OOAM TO 9:OOPM. 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAN MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE 0 SLIDES, SINKING, OR COLLAPSE. 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS/1000SF, INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT 1000LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 18OLBS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0-5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED IMMEDIATELY. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. 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 UTILITIES' OF VIRGINIA AT 1-800-552-7001 PRIOR TO THE START OF WORK. 2. WHEN WORKING ADJACENT TO EXISTING STRUCTURES, POLES, ETC., THE CONTRACTOR SHALL USE WHATEVER METHODS THAT ARE NECESSARY TO PROTECT STRUCTURES FROM DAMAGE. REPLACEMENT OF DAMAGED STRUCTURES SHALL BE AT THE CONTRACTOR'S EXPENSE. 3. 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. 4. 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. 5. CONTRACTOR SHALL NOTIFY AND COORDINATE ALL WORK INVOLVING EXISTING UTILITIES WITH UTILITY OWNERS, AT LEAST 72 HOURS PRIOR TO THE START OF CONSTRUCTION. 6. CONTRACTOR SHALL IMMEDIATELY REPORT ANY DISCREPANCIES BETWEEN EXISTING CONDITIONS AND CONTRACT DOCUMENTS TO THE OWNER AND ENGINEER. 8. CONTRACTOR SHALL ADJUST ALL APPURTENANCES AS REQUIRED TO MATCH NEW GRADES. THE EXACT LOCATION OF APPURTENANCES SHALL BE COORDINATED WITH THE OWNER. 9. CONTRACTOR SHALL SUBMIT FOR THE APPROVAL OF THE OWNER SUBMITTALS OF ALL SPECIFIED MATERIALS LISTED IN THE PLANS, TO INCLUDE SHOP DRAWINGS, MANUFACTURERS SPECIFICATIONS AND LABORATORY REPORTS. THE OWNERS APPROVAL OF SUBMITTALS WILL BE GENERAL AND WILL NOT RELIEVE THE THE CONTRACTOR FROM THE RESPONSIBILITY OF ADHERENCE TO THE CONTRACT AND FOR ANY ERROR THAT MAY EXIST. MINIMUM STANDARDS(MS): 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. STABILIZATION 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 7 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED AT AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN 14 DAYS. 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 CITY 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. CUT 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. 10.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: o.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. 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.LOCITY 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 CHANNEL THE BED OR 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 TWOYEAR STORM TO INCREASE WHEN RUNOFF OUTFALLS INTO A NATURAL CHANNEL OR WILL NOT CAUSE THE PREDEVELOPMENT PEAK RUNOFF RATE FROM A TEN-YEAR STORM TO INCREASE WHEN RUNOFF OUTFALLS INTO A MANMADE 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 THE IMPROVEMENTS. 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. L. 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 § 10.1-562 OR 10.1-570 OF THE ACT. M. FOR PLANS APPROVED ON AND AFTER JULY 1, 2014, THE FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS OF § 10.1-561 A OF THE ACT AND THIS SUBSECTION SHALL BE SATISFIED BY COMPLIANCE WITH WATER QUANTITY REQUIREMENTS IN THE STORMWATER MANAGEMENT ACT (§ 10.1-603.2 ET SEC. OF THE CODE OF VIRGINIA) AND ATTENDANT REGULATIONS, UNLESS SUCH LANDDISTURBING ACTIVITIES ARE IN ACCORDANCE WITH 4VAC50-60-48 OF THE VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP) PERMIT REGULATIONS. N. COMPLIANCE WITH THE WATER QUANTITY MINIMUM STANDARDS SET OUT IN 4VAC50-60-66 OF THE VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP) PERMIT REGULATIONS SHALL BE DEEMED TO SATISFY THE REQUIREMENTS OF MINIMUM STANDARD 19. SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM 45183 VSMP PLAN 664 WEST RIO ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2023.03.15 REVISION: FILE NO. 18.030 EROSION & SEDIMENT CONTROL NARRATIVE C3 PHASE 1 1. INSTALL CONSTRUCTION ENTRANCE ON AS SHOWN ON THIS PHASE. 2. INSTALL INLET PROTECTION ON THE INLET ON RIO ROAD W AS SHOWN. 3. INSTALL WIRE SILT FENCE ALONG THE AREA SHEET FLOWING TO STREAM DIRECTLY. 4. CONTACT THE ENGINEER AND ALBEMARLE COUNTY FOR INSPECTION AND APPROVAL OF ALL E&S CONTROL MEASURES. 5. UPON APPROVAL OF E&S CONTROL, START CLEARING THE TREES AND MAINTAIN E&S MEASURES NOTE: ALL SOILS ARE HSG B -�I"- o iP SIDEWALK &— CG-6 EX. ENTRANCE UTILITY POLE & LINES EASEMENT TO CENTRAL TELEPHONE COMPANY OF VIRGINIA DBA CENTURYLINK D.B. 4716-51 EASEMENT TO COMMONWEALTH OF VIRGINIA D.B. 4592-425 r K2 I .. '- SANITARY SEWER ESMT. D.B. 1270-711,714 -- - - - - PLAT TM. 45-100C 0 MH-1 TOP=489.77 I N V= 479.09 EXISTING TREELINE TO BE REMOVED v HOLLY 2) 20' SANITARY SEWER ESMT. D.B. 1270-711, 714 PLAT HOLLY SOIL EROSION & SEDIMENT CONTROL SYMBOLS N0, TITLE KEY TS MU LOD LOD 'o I RE BLOCK \ \\ \ \ GARAGE00\\ \\ x\\ \ UP QUAD. a / \ VH 2FUEL Sf00P II II I I I `� I b V A HOLLY #66 , I \ \ \ G I & STEPS ONEN TANK I I I x \ I \ \ \ TM. 45-173 WIRE o sTo TMC 45-10(B xlSTl G I vv A v n BLojK I TREENETO I I \ o BE R I O D I \� \ O\ x \ HOLLY _^ / BASE ENT I I I I 1 I I II \ \ ` LSE ON IPOPL`Qll \ I`c \\ V\ \\ �9c BOX r0 ' I I(TBR) \ x \ Q� RETAI IAN L / / / / I I b I I 15" RED I l I I I p �POR HD\\TM. 45-1'01 �\ oAK �� / / \ 1 15" \ \ 1 \ \ f \ 1�� BEECH I j OPLAR OUR I e to r \ POI4 AR \ a \ Af_/ / [� O � \ / 18(TOBAR) Iv , . / I I I I I I p I � I `�A '• � \ V \ A 1Ay2" \PAO \PLAR EXISTING K r TREELINE TO 83 36" a O BE REMOVED 3'S3" W 3" / e 18" MAP// E x \ `\: i \ f�\ Gz1 STORY (TBR) . WBSMT COr- 18" POIAR (TR)BLOCK WA� O 2,44x \ \t \\ \ \ \\ I p l SANITARY $EWE MAP II , DIECK i II 1\ p.B. 127\OS721 �R I \ \ \ \ I \ \ I \ LIMITS 0I \ \ INV-079.69 WALL \ \ INV�479.81 \ \ \ROCK \ DIS\TURBA\NCE _ \ \ \ \ V �� \ INV=�79.86 \ /v \ \ \ 1.48AC \ \ \ \ \ Q \ \ \ \ / I \d"/ \\ \ \ \ \ \\ \ \ \ \ \ \ von\ \ \ ROAD / \ \ \ \ \ \ \ \ \ (TBk PIN A \\ \ \\ r e GRAVEL 1\ \ \ \ Mb,,CH PILE \\\ \\\ \\ \\ \ \\ \\ 15"\ © ARE/} TVLITY . 2 LE\ GUY \ & LINES \ \ \ \ \ \ \ N 11 1 \ \ \ \ SEWER C7 BI \\ 1 \ \ ISANITAKY \ \ \ \ ESMT. ^\ \ \ \ o \ 1 D.B. 1�70-701, o `\' \ \ \ 1 1 1 \ \ 1 764 PLAT 27-/ 10 Av vv\ \\ 1 Lx. ,... II TM� 45 100 zd' sANITAY_Z \\ RED, UTc,Iv .' Imo, �, I"LSQ B \\ I II \\ \\ \\ \ \\ \\ \\ \ S�WER ESM . / ry \ \ D.B.11270-711 \ \ \ \ \714 PLA>5` (TOARI jAIO�j I o5 1 \ \ \ I A_ h co cn �GNr�I �D I (-r 36" WHITE � / I I 1 I I 1 1 1 1 I I 1 I I I 1 1 1 WLLI Rll AK o OAK gTBR) I \ 1 - , Lod ILE / I Li- I v\ 1 Q0 Ln a3 o I / 24 RED I \ OAK `�TBR) vov . x PRIVATE SIGN EX. 10' DI-36 TOP=527.78 BENCHMARK: TOP OF DROP INLET ELEVATION=527.78 �� LOD POLE' / TM. 4�-101 / I IKEELINE RE REMO 276V------ IiSG B LIMITS OF // // // // / 2SE0' WER1SA�JITSM ARY \ /DISTURBANCE 6.B. 127 }SrEOgT/` \ C clr-1 / // �� / 1.46ACILT \ \ \ \ EXISTING // ,\ / \ TREELINE 'T4p ` ' BE�REMOVED\ - / / I PNITARY Z D.B`y063- V L9 I - 366.98' Ts Il \ DITCH - r u 1 \��Oh � ' :ate �•� ,'��-.E / -7 STEEP SLOPES OVERLAY (MANAGED) I I o S4�-45'26"W 407.54' \ \ — - S12°58'28"E L— BOUNDARY .PAVED �ILL@AL1C1=,—.--.--- GAP _� _ 16.41' x 30' JOINT ACCESS ESMT. D.B. 1037-527 - 4& D.B. 1035-465 PLAT TM. 45-105 TM. 45-102 Scale: 1 3.02 CONSTRUCTION ENTRANCE SF 3.05 SUPER SILT FENCE 3.31 TEMPORARY SEEDING TS 3.35 MULCH LIMITS OF DISTURBANCE LOD SHIMP ENGINEERING. LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM Lie. .45183 rdp 3��sI23 q,�' 0 VSMP PLAN 664 WEST RIO ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2023.03.15 REVISION: FILE NO. 18.030 EROSION & SEDIMENT CONTROL PLAN - PHASE 1 C4 STONE 70' MIN. CONSTRUCTION ACCESS 3" SM-2A ASPHALT TOP 2% 1--3" COURSE 2% STONE CONSTRUCT ION ACCESS -\ emu'- MIN. 21A AGGREGAIE BASE PROFILE 70' MIN. ASPHALT PAVED —O �WASHRACK r�o 1 2% 12' MIN.* t POSITIVE DRAINAGE *MUST EXTEND FULL WIDTH `---® TO SEDIMENT OF INGRESS AND EGRESS } OPERATION TRAPPING DEVICE FILTER CLOTH 2' MIN. SECTION A —A PAVEMENT 5171VE DRAINAGE SEDIMENT %PPING DEVICE A mnnnnun water tap of 1 itch nmst be installed with a nnnrunulnn 1 inch ballcock shutoff vahre supplying a wash hose with a diameter of 1.5 inches for adequate constant pressure. Wash water niust be carried away from the entrance to an approved settling area to remove sedunent. All sediment shall be prevented fiom entering storm chants, ditches or watercourses. PAVED WASH RACK NO SCALE PAVED CONSTRUCTION ENTRANCE (PCE Not To Scale GRAVEL CURB INLET SEDIMENT FILTER RUNOFF e7:7_19��1� SPECIFIC APPLICATION WIRE MESH FILTERED WATER CURB INLET THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS WHERE PONDING IN FRONT OF THE STRUCTURE IS NOT LIKELY TO CAUSE INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED AREAS. * GRAVEL SHALL BE VDOT #3, #357 OR 5 COARSE AGGREGATE 2 INLET PROCTION (IP) Not To Scale TABLE 3.31-C TEMPORARY SEEDING PLANT MATERIALS, SEEDING RATES, AND DATES e e N w SEEDING RATE NORTH• SOtrrHb PLANT 3/1 5/1 g/15 4/I5 5/1 9/1 SPECIES CHARACTERISTICS Acn I" ftr m to ro to to ro ano a/u un a/so 9/1 uns OATS 3 bu. (up to too lbs., 216e. X - Use spring varieties (e.g., Noble). Avene now not ten then SO lbs.) RYE' 2 W. (up to 1I0 lbs., 2.5 lbs. X - X X - X Use for Tate fill saedings, winter (gxele cerulel not 1. than SO lbs.) cover. Tolerates cold and low moisture. GERMAN MILLET 50 Ibe, approx. 1 lb. - X - - X - Warm -season awual. Dies at first get Feria j(�) treat. Ma, be added to suer mixes. ANNUAL RYEGRASS` 6016a. 1'h lbs. X - X X - X May be added TEMPORARY SEEDING (TS) C5 Not To Scale 1992 3.35 Source: Va. DSWC TABLE 3.35-A ORGANIC MULCH MATEi2IAIS AND APPLICATION RATES RATES: MULCHES: NOTES: per Acre Per 1000 sq. ft. Straw or Hay 1's - 2 tons 70 - 90 lbs. Free from weeds and coarse (Minimum 2 matter. Must be anchored. tons for Spread with mulch blower winter cover) or by hand. Fiber Mulch Minimum 35 lbs. Do not use as mulch for 150016s. winter cover or during hot, dry periods.` Apply as slurry. Corn Stalks 4 - 6 tons 185 - 275 lbs. Cut or shredded in 4-6" lengths. Air-dried. Do not use in fine turf areas. Apply with mulch blower or by hand. Wood Chips 4 - 6 tons 185 - 275 lbs. Free of coarse matter. Air- dried. Treat with 12 lbs nitrogen per ton. Do not use in fine turf areas. Apply with mulch blower, chip handler, or by hand. Bark Chips 50 - 70 cu. 1-2 cu. yds. Free of coarse matter. Air - or yds. dried. Do not use in fine Shredded turf areas. Apply with Bark mulch blower, chip handler, or by hand. ' When fiber mulch is the only available mulch during periods when straw should be used, apply at a minimum rate of 2000 lbs./ac. or 45 lbs./1000 sq. ft. 4 MULCHING MU C5 CONSTRUCTION OF A SILT FENCE (WITH WIRE SUPPORT 1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO THE POSTS. TRENCH UPSLOPE ALONG THE LINE OF POSTS. r � FLOW 3. ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND IT INTO THE TRENCH. FLOW 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. 5 )WIRE SILT FENCE (WSF Crj Not To Scale 1992 3.05 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 6'MAX t =d A IIII FLOW I a- 3. STAPLE FILTER MATERIAL 4. BACKFILL AND COMPACT TO STAKES AND EXTEND THE EXCAVATED SOIL. IT INTO THE TRENCH IIII IIII - FLOW � lr la =III SHEET FLAW INSTALLATION (PERSPECTIVE VIEW) I I I I FLpWIA010to POINTS A SHOULD BE HIGHER THAN POINT B. DRAINAGEWAY INSTALLATION (FRONT ELEVATION) Source: Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control, Sherwood and Wyant Plate 3.05-2 6 SILT FENCE SF C5 Not To Scale SHIMP31ENGINEERIN LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM U J - NT Lic. .45183 '6 SlIs�23 40 O a4'S�tAL VSMP PLAN 664 WEST RIO ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2023.03.15 REVISION: FILE NO. EROSION & SEDIMENT CONTROL PLAN DETAILS C5 Flow Predev Flowrates Postdev Flowrates Reduction Check Storm cfs Storm cfs 10-yr 10 Predev Reduced IF= 0.8 FOR LDA>lAC IF 0.9 FOR LDA < I AC IAD= AC Noce: LOD on this sheet is based on the total future site development 664 West Rio Energy Balance Equation Summary: Site OutfaD 24 Hr 1 year Storm Comparison: QtlMlwea<I.F. "( ar.�o "RVvre-or.m varw\ Qae.el (Qforesmtl"RVSrrtmra)/Rvaewl I.F. = 0.8 1.52 0.121 Max Qa�no".a = 1.22 cfs 0.121 Limits of Disturbance Q°roa<.olo�d ac = RVp�a.pnelwy = RV°„d°"a = Achieved Post-Dev Max RmoffQlyr = 0.75 cfs. Site complies with 9VAC25-670-66-B(3) Maximum Q10yr = 9.15 cfs (predev) Achieved Q10yr = 7.34 cfs. Site complies with 9VAC25-870-66-C(2) NOTE: REFER TO CALCULATION PACKET TITLED "WPO 2022-00017 664 WEST RIO -VSMP PLAN SWIM CALCULATION PACKET" FOR COMPLETE STORMWATER CALCULATIONS STORMWATER MANAGEMENT NARRATIVE WATER QUALITY: TO ADDRESS RUNOFF QUALITY REQUIREMENTS SET FORTH IN 1 � 9VAC25-870-65, THE SITE LAND COVER INFORMATION WAS ENTERED INTO 10-yr VRRM RE -DEVELOPMENT SPREADSHEET. THIS INCLUDED PRE -DEVELOPMENT AND POST -DEVELOPMENT LAND AREAS. THE VRRM SPREADSHEET, ATTACHED IN THIS PACKET, SHOWED THAT THE PROJECT REQUIRED A TOTAL PHOSPHOROUS (TP) REDUCTION OF 0.19 LB/YR. A PURCHASE OF 0.19 LB/YR PHOSPHOROUS CREDIT SHALL BE MADE TO ACHIEVE REQUIRED TP REDUCTION FOR THIS SITE. WATER QUANTITY: SWM QUANTITY IS SATISFIED BY ANALYZING CONCENTRATED RUNOFF FROM THE DEVELOPMENT AT THE SITE OUTFACE AT THE NORTHEAST CORNER OF THE DEVELOPMENT PROPERTY. THE SITE DRAINAGE AREA IS DIVIDED INTO TWO DRAINAGE AREAS BASED ON A STREAM NORTH OF THE PROPERTY, THE DRAINAGE AREA TO THE SOUTH OF THE STREAM (DRAINAGE AREA 1) AND THE DRAINAGE AREA TO THE NORTH OF THE STREAM (DRAINAGE AREA 2). BOTH DRAINAGE AREA 1 & 2 FLOW TO THE SITE OUTFACE BUT THE ANALYSIS FOR THEM DIFFERS AS FOLLOW: DRAINAGE AREA 1: 9VAC25-870-66-B(3) REQUIRES THAT CONCENTRATED RUNOFF FROM DEVELOPMENT AT THE SITE OUTFACE MEET THE ENERGY BALANCE EQUATION. TO ACHIEVE THIS, PORTIONS OF THIS AREA ARE CONVERTED FROM WOODED/TURF SURFACE AREA TO MULCH SURFACE AREA. THIS RESULTS IN A REDUCTION IN THE WEIGHTED CURVE NUMBER IN THE POST DEVELOPMENT CONDITIONS. THIS CAUSES THE SITE RUNOFF TO BE REDUCED FROM DRAINAGE AREA 1 TO SITE OUTFACE 1 WHICH THEREFORE MEETS THE ENERGY BALANCE EQUATION REQUIREMENTS SET FORTH IN 9VAC25-870-66-B(3). THE PRE DEVELOPMENT CONDITIONS FOR DRAINAGE AREA 1 ARE AS FOLLOW: CN 0.178 AC IMPERVIOUS 98 2.852 AC TURF 61 0.59 AC WOODS 55 WEIGHTED CN 62 THE POST DEVELOPMENT CONDITIONS FOR DRAINAGE AREA 1 ARE AS FOLLOW: CN 0.178 AC IMPERVIOUS 98 2.179 AC TURF 61 1.263 AC MULCH 48 WEIGHTED CN 58 9VAC25-870-66-C(2).B REQUIRES THAT THE CONCENTRATED STORMWATER FLOW TO STORMWATER CONVEYANCE SYSTEMS THAT CURRENTLY EXPERIENCE LOCALIZED FLOODING DURING THE 10-YEAR 24-HOUR STORM EVENT AND RELEASES APOST-DEVELOPMENT PEAK FLOW RATE FOR THE 10-YEAR 24-HOUR STORM EVENT THAT IS LESS THAN THE PREDEVELOPMENT PEAK FLOW RATE FROM THE 10-YEAR 24-HOUR STORM EVENT. THIS CONDITION HAS ALSO BEEN SATISFIED AS THE PEAK FLOW FOR THE 10-YEAR 24-HOUR STORM EVENT FOR THE POST DEVELOPMENT IS LESS THAN THE PRE -DEVELOPMENT FLOW FOR THE 10-YEAR 24-HOUR STORM EVENT. DRAINAGE AREA 2: DRAINAGE AREA 2 LIES NORTH OF THE STREAM AND HAS 0.398 ACRES OF POTENTIAL RUNOFF IN A STORMWATER RUNOFF THROUGH TURF AREA WHICH FLOW TO THE STREAM AND THEN REACHES THE SITE OUTFACE. THIS AREA IS DESIGNED TO HAVE SHEET FLOW RUNOFF AND MEETS THE REQUIREMENTS IN 9VAC25-870-66-D. 9VAC25-870-66-D REQUIRES EVALUATING FOR POTENTIAL IMPACTS ON DOWN -GRADIENT RESOURCES FOR INCREASED VOLUMES OF SHEET FLOW THAT WILL CAUSE OR CONTRIBUTE TO EROSION, SEDIMENTATION, OR FLOODING. THE PRE DEVELOPMENT DRAINAGE AREA 1 HAS 1.52 CFS Q1 AND 9.15 CFS Q10 WHILE PRE DEVELOPMENT DRAINAGE AREA 2 HAS 0.21 CFS Q1 AND 1.23 CFS Q10. SINCE DRAINAGE AREA 1 AND DRAINAGE ARE 2 BOTH FLOW TO THE SAME SITE OUTFACE THAT IS BEING ANALYZED, ADDING THE TWO PRE DEVELOPMENT FLOWS TOGETHER RESULTS IN THE FOLLOWING: Q PRE-DEV FOR 1-YEAR = 1.52 CFS + 0.21 CFS = 1.73 CFS Q PRE-DEV FOR 10-YEAR = 9.15 CFS + 1.23 CFS = 10.38 CFS THE POST DEVELOPMENT DRAINAGE AREA 1 HAS 0.75 CFS Q1 AND 7.34 CFS Q10 WHILE PRE DEVELOPMENT DRAINAGE AREA 2 HAS 0.21 CFS Q1 AND 1.23 CFS Q10. SINCE DRAINAGE AREA 1 AND DRAINAGE ARE 2 BOTH FLOW TO THE SAME SITE OUTFACE THAT IS BEING ANALYZED, ADDING THE TWO POST DEVELOPMENT FLOWS TOGETHER RESULTS IN THE FOLLOWING: Q POST-DEV FOR 1-YEAR = 0.75 CFS + 0.21 CFS = 0.96 CFS Q POST-DEV FOR 10-YEAR = 7.34 CFS + 1.23 CFS = 8.57 CFS WHEN COMPARING THE PRE AND POST DEVELOPMENT FLOWS, THE RESULTS SHOW THAT THE POST DEVELOPMENT FLOW IS REDUCED BY 44.5% FOR THE 1-YEAR STORM AND BY 17.4% FOR THE 10-YEAR STORM. SINCE THE RUNOFF TO THE SITE OUTFACE FOR THE POST -DEVELOPMENT HAS BEEN DECREASED FROM THE RUNOFF FOR THE PRE -DEVELOPMENT, THERE WILL BE NO RUNOFF THAT CONTRIBUTES TO EROSION, SEDIMENTATION, OR FLOODING OF DOWN GRADIENT RESOURCES WHICH THEREFORE MEETS THE REQUIREMENTS IN 9VAC25-870-66-D. DETENTION SYSTEM MODELING NOTES: 1. THE STORMWATER QUANTITY CALCULATIONS INCLUDE THE TOTAL DRAINAGE AREA TO SITE OUTFACE WHICH WOULD ACCOUNT FOR A TOTAL LIMITS OF DISTURBANCE OF 4.02 AC THOUGH THE LIMITS OF DISTURBANCE PROPOSED IN THIS VSMP PLAN = 1.48 AC. DA 1 DA 2 Total 1.52 0.21 1.73 9.15 1.23 10.38 DA 1 DA 2 Total 1-yr 0.75 0.21 0.96 10-yr 7.34 1.23 8.57 LEGEND ®PRE DEV DA 1 TO SITE OUTFACE IMP. PRE DEV DA 1 TO SITE OUTFACE TURF. ®PRE DEV DA 1 TO SITE OUTFACE WOODS. PRE DEV DA 2 TO SITE OUTFACE TURF. -------SOILS -ow -PRE DEVELOPMENT DRAINAGE AREA 1 -oA -PRE DEVELOPMENT DRAINAGE AREA 2 NOTE: ALL SOILS IN DRAINAGE AREA 1 ARE HSG B Pre-Dev Draioa a Area 1 to Site Out6B CN 98. 61 55 J fSF AC Btitldie &Pavement 7750 0.178 4.9 Impervious 7,750 0.178 4.9 Turf � 1124141 2.852 � 78.8 Woods 25,687 1:0.590 � 16.3 iotalDrainage Area � 157,678 �,t F 100.� hteAC1V f2_ 44 14 44 Pre-Dev Drains a Area 2 to Site Out6B CN 6L SF AC % Turf 33 4.�398 G00.0 Total Drainage Area 117}133' f 1�..'39$0 µre 6 TOC S.o- LEGEND ®POST DEV DA 1 TO SITE OUTFACE IMP. • POST DEV DA 1 TO SITE OUTFACE TURF. POST DEV DA 1 TO SITE OUTFACE MULCH. POST DEV DA 2 TO SITE OUTFACE TURF. -------SOILS - oA -POST DEVELOPMENT DRAINAGE AREA 1 - oA -POST DEVELOPMENT DRAINAGE AREA 2 NOTE: ALL SOILS IN DRAINAGE AREA 1 ARE HSG B Post-Dev Drainage Area 1 to Site OutfaB CN 98 61 48 SF AC °/. Building &Pavement 7,750 0.178 4.9 Impervious 7,750 0.178 4.9 Turf 94,427 2.179 60.2 Mulch 5500 L263 34.9 TotalDnlnageArea 3.620 I00.0 WelhtedCNsB. TOC'= 11.2 Post-Dev Drainage Area 2 to Site Outfall CN 61 SF AC % Turf 17,333 0.398 100.0 Total Drainage Area 17,333 .398 000.0 Weight TOC= 6l 5.0 ICRFSUU:r 10 , � I r'_ I I Ial ° �`� \ �i� I Vr�^{�I���/'�_T(L I I �Ca° � `Aa A Y IBu�( 1dM•J � • a `yll L ( � I I I 1 1'd° r su. as-�too>♦ i> i> I I I> 1 • > ;' 1 \P G ° ° ° `\ \ f> > r> I >I >I >I ■ >I >'IPC°°\ \\ \ F \ \ >\ > °° C ° tea >.\ ERLA ea�ixx° ° yA° ;m x tea) > \` >I >I > \ > t > ° ° FLOW > sr > +> > >I > \0 > ` > 1 > \ > fitE E�ELgPME T 4a, ► > >\ > 1, > 44 a d Al A E R - •�� > s��>'' � > } >�>I>1> >\>\>I it, t>\ °dam 1> 4 ��� t r> •' >.� 1> > ,>e 1'{ti,>} >x W o 1, if > � PRE-DEV DA1 TI ii, Iwa6-iot:> i>�I��W>f/>>w�>� �>R�♦>>>;>iri/�i>>>>>�>j>+Jiri�/>/�r±'r>>'>i>b>+\I �>41C�y/�` > r M.x,ESUN-;CHANNEL aawews. < I � > > \� i, > `•-_s > �►. # > > Y� > >t 7 > 1. > *Fg /> i>Yv °naaszlnr'ie � I �> `\ \ >`� > `�3 > i`� i i. > > l_ > � > i > \> i •¢g �� � `\ t \ >�ca >\ aonEs x0' JgMT sa i - 664 West Rio a tn5 Pre Development Drainage Area Map Y1. �• -• -Y -• -• -• • Y Y Y Scale: 1 TM. 45-949 mn• Tm. a5-105 O V V O V I L V 664 West Rio Post Development Drainage Area Map Scale: 1"=60' 120 180 18C SHIMP ENGINEERING LAND PLANNING -PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM U J MP � Lic. .45183 °dp 3lIsI23 �A O VSMP PLAN 664 WEST RIO ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2023.03.15 REVISION: FILE N0. 18.030 STORMWATER DRAINAGE AREA MAPS & CALCULATIONS C 6 Virginia Runoff Reduction Method W orksheat DEQ Virginia Runoff Reduction Method Re -Development Compliance Spreadsheet - Version 3.0 BMP Design Specifrmtiens LuD 2013 Dreft Stds&Spends Site Summary Project TRle: 664 West Rio Date: 4501N1 I Total Rainfall (in) 43 Total Disturbed Acreage: 1 1.4111 Site Land Cover Summary Pre-ReDevelopment Land Cover (acres) aaolM espy Csda, DSeRa Totals %or Total Forest/oden(acesl C- 0.59 am 0.00 0.59 40 Managed Tud(acres) 0a0 I OR OAD I am 0.82 55 Impervious Cover(acres) am 0.07 OAO 1 0,00 0.07 5 148 100 Post-ReDevelopment Land Cover lateral atlb BSWa CSolb OSa4 Totals %af Total F -__11-pen(acres) 0.00 Oa0 0.00 O.W am 0 Managed Turf (acres)1 0.00 2.41 1 0.00 1 0.00 1.41 95 Impervious Cover(acres) I cum I am I am I am 0.07 5 1.48 100 Site Tv and Land Cover Nutrient Wads Final Post -Development Final Post- Post- Adjusted Pre - ReDevelopment Development ReDevelopment &New lmpervlous) (New lot pervious) She Rv 0.24 0.24 -- 0.17 Trctbnent Volume hfta) 1,2&5 1,20 - 901 lP load lib/Yrl 0.79 0.79 0.57 Baseline TP Wad Ob/yr): 0.0al -Redudlen card. d"id-mod a ad I hfmtion not required Total TP Wad Reduction Required (lb/yr) 0.19 0.19 0 Final Post -Development Load (Port-ReDevelopment&New lmpervlous) Pre- ReDevelapment TN Load (lb/yr) 5,69 4,05 Pre -Final Post -Development Post-ReDevelopment TP ReDevelopment TP Load per acre load per acre TP d/i per a (lb/acre/yr) (lb/acre/yr) Ib/acde/ r 0.38 0.54 0.S4 .--_--_--_--_--_--_--_--_--_--_.. _.. _.. _.. _.. _.. _.. _.. _.. _--_--_--_--_--_--_--_--_--_--_--_--_--_--_--_--_--_--_--_--_--_--_--_--_--_-- S-ite Compliance Summary Maximum as Reduction Required Below 20% 'Note:% Reduction will reducephourdevebplaent Tpbadto/ess than orequal m oadallne load grill 1g/yr(OA316/arJyrf Pre-RDeonew'dont Wad /Required evidencejor Post -Reeve Past-Reoev TP boil-bosNLrre Local o)0606816/yr), 6asffiehad= sire mear0.411g/ar/w Total RunoRVolume Reduction(ft) 0 Total TP Loatl Reduction Achieved 0b/yr) am Total TN Wad Reduction Achieved(lb/yr) 0.00 Remaining Post Development TP Load 0.79 (lb/Yc) Remaining TP Load Reduction(Ii 0.19 Required 'fleducaon below Iawl¢Wbpment local Ilm4otbn rant legaRtd .--_ --_ --_ --_ --_ --_ --_ --_ --_ --_ --_ --_ --_ --_ --_ --_ --_ --_ --_ --_ --_ --_ --_ --_ Drainage Area Summary Ill DAB D.A.0 DAD DAE Tubl Forest/Open (acres) 0100 0.00 am am Oa0 D.Oa Managed Turfie ) am am am am OaD 0.00 ImperviousCwer(aaesl am am 0.00 am Glum am Total Am (um) am DAD am BAD 0.00 0.00 Drainage Area Compliance Summary DA. A D.A. B D.A. C DA D DA E Total TP Load Reduced (lb/yr) I am am am DAD am am TN Load Reduced flacyrl I am am am am am am Summery Fred C) 2011 BMP Standards and SpecificationE 2013 Draft BMP Standards and Spe( Project Name: 664 West Rio Date: 3/15/2023 Linea DevelopmentProjeced No Cite Information lost -Development Project (Treatment Volume and Loads) Enter Total Disturbed Area (acres) Pre-ReDevelopment Land Cover (acres) 1.48 A Sills BSoils CSolls I DSolia L Totals Forest/Open Space herds) - undisturbed forest/open space 0.59 0.59 Managed Turf (acres) -- disturbed, graded for yards or other turf to be nwned/managed 0.82 a.82 Impervious Cover(acrgc) 0.07 0.07 Post -Development land Cover (acres) A Sods 6Solb C50118 DSolis Totals Feest/Open Space (acres) - undisturbed, protected forest/open space or reforested land 0.00 Managed Turf (aces) -- disturbed, graded for yards or other tend to be mowed/managed 1.41 1.41 Impervious Covdr(am) 007 0.07 Area Check OK. off. OK. OK. 1.48 Constants Runoff CaefBcients III Pre-ReDevelopment Listed "justice Forest/Open Space Cover (acres) 0.59 0.59 Weighted Rv(/orest) DIM 0.03 %F t 40% 40% Managed Turf Cover (acres) 0.82 0.82 Weighted Rv(tur0 0.20 0.20 %Managed Turf 55% 55% Imparvbus Cover(acres) 0.07 0.07 RvpmpeMous) 0.95 0.95 %lmpervlous 5% 5% Total SRe Area heals) 1.48 1.48 %m Be 0.17 0.17 Treatment Volume and Nutrient Load Post Real & New Impervious Forest/Open Space Cover (acres) 000 Weighted Rv(for l am %Forest 0% Managed Turf Cover (acres) 1.41 Weighted W(Wei) 0.20 %Managed Tud 95% nparvious Cover (so.) 0.07 Rv(Impervious) 0.95 %Impervious 5% Final Site Area (aces) 1.48 Final Port Der Site Be 0.24 Pre-ReDevelopment Treatment Volume Final Post -Development (acre-R) 0.0207 0.0207 Treatment Volume 0.0290 (acre-ft) Final Post -Development Pre-ReDevelopment Treatment Volume 901 901 Treatment Vol ume 1,265 (cubic feet) (cubic het) Final Po sh Pre-ReDevelopment TP Load 4 (Ib/yr) 0.57 0.57 Development TP Load (lb/yr) 0.79 PreReDevelopmentTP Load per acre e IIb/acre/yr) 0.38 0.38 Baseline TP Load jitter) (0.411W/xre/W applied to pre -redevelopment area excluding pervious 0.61 6uW Proposed for new imnervlouscover) Adjusted Land Cover Summary: W ReOevelopmen t land eager mime Pervious land cover (forest4open spode or managed Nljf xreoge proposed for ne ,ImpeMOLLc roger. shouted total acreage Is condstent wMh Pas[-ReDevefopmen[acreage (minus modgerof lewfmpervious rover). Vol Ishaded, loadreducdon Wudf t/ornewlmpetvfous cover/bami All levebpment load limit 0.41 ios/aere/ye er). Load per acre ii IIb/acre/yr) TP Wad Reduction Required Ilb/yr) 0.19 data Input cells constant values calculation as IMP Design Specyications list. 20131 unearproject?l No roper areas entered comexcl •/ Tom/ dkturbed area entered? ✓ Land Cover Summary -Post Post -ReDevelopment Fgreu/Dpen space 0.00 Cover (acres) Weighted RY(forest) _ am %Forest 0% Managed Turf river (acres) 1.41 Weighted Rv(tur0 0.20 %Managed Turf 95% Real Impervious 0.07 Cover(acres) Rvhllopervlous) 0.95 %lmpervlous 5% Total Reaev. Sim Area 1.48 (acres) ml site Be 0.24 atment Volume and Nutrient Load Post-ReDevelopment Treatment Volume 0.0290 (acre-ft) Post-ReDevelopment Treatment Volume 1,265 (cubic feet) 11 Post-ReDevelopment • Load (TP) 0.79 (lb/Yr)" Part-ReDevelopment TP Wad peracre 0,54 (lb/acre/yr) Max. Provence Required (Below Pre- 70% Rapavubpmcne lwd) TP Load Reduction 4 Required for 0.19 Redeveloped Area (lb/yr) a Reducfon below new development loot: Nitrogen Loads (Informational Purposes Only) Final post -Development TN Wad Pre-ReDevelopment TN Laad lb/9d 4.05 (Post-ReDevelopment&New lmpervlous) Ob/yrf 5.69 LEGEND ® PRE DEV IMP. PRE DEV TURF. ® PRE DEV WOODS. _LOD LOD ---SOILS St Specs NOTE: ALL SOILS IN DRAINAGE AREA 1 ARE HSG B Post-Developm Nwlm Mots I I New Impervious Cover (acres) 0.00 Rri(impervious) - post -Development Treatment Volume - (treel Post -Development Treatment Volume (cubic - feet) TP Load Reduction Required for New 0 Impervious Area (lb/yrl Site Results (Water Quality Compliance) Area Checks C D.A. D D.A. E AREA CHECK FOREST/OPEN SPACE NO 0.00 0.00 0.00 0.00 0.00 OK. IMPERVIOUS COVER (ac) 0.00 0.00 0.00 0.00 0.00 OK. IMPERVIOUS COVER TREATED (ac) 0.00 0.00 0.00 0.00 0.00 OK. MANAGED TURF AREA (ac) 0.00 0.00 0.00 0.00 0.00 OK. MANAGED TURF AREA TREATED(ac) 0.00 0.00 0.00 0.00 0.00 OK. AREA CHECK Site Treatment Volume (ft3) 1,265 Runoff Reduction Volume and TP By Drainage Area D.A. A D.A. B D.A. C D.A. D D.A. E TOTAL RUNOFF O O DAVAILANVOLUMEACHIEVED(fi) TP LOAD AVAILABLE FOR REMOVAL (Ib/yr) 0.00 0.00 ���� 0.00 0.00 0.00 0.00 TP LOAD REDUCTION ACHIEVED (lb/yr) 0.00 0.00 0.00 0.00 0.00 0.00 TP LOAD REMAINING (Ib/yr) 0.00 0.00 0.00 0.00 0.00 0.00 NITROGEN LOAD REDUCTION ACHIEVED (Ib/yr) 0.00 0.00 0.00 0.00 0.00 0.00 Total Phosphorus FINAL POST -DEVELOPMENT TP LOAD (lb/yr) 0.79 TP LOAD REDUCTION REQUIRED (Ib/yr) 0.19 TP LOAD REDUCTION ACHIEVED (Ib/yr) 0.00 TP LOAD REMAINING (Ib/yr): 0.79 REMAINING TP LOAD REDUCTION REQUIRED (Ib/yr): 0.19 Total Nitrogen (For Information Purposes) POST -DEVELOPMENT LOAD (Ib/yr) 5.69 NITROGEN LOAD REDUCTION ACHIEVED (lb/yr) 0.00 REMAINING POST -DEVELOPMENT NITROGEN LOAD (lb/yr) weexxxxxxxxxx5.69 LEGEND POST DEV IMP. ® M POST DEV TURF. -.-.-LOD ---SOILS NOTE: ALL SOILS IN DRAINAGE AREA 1 ARE HSG B y W e W LOD W O \ ,whe 6 Vi Wow �LOD w ca w �+ W . W w ch OD ^^ w y� LOD LbD ♦ 27B♦♦ HSG B o ♦♦ BmCXYOF OR ARM -: Mal 7. ! '' TM. 45-looc TM. 48-10D y 0 TM. 45-1O \+ W W W rip W W TM. 45-101 W`Y`W 4WC W W SCyB/W s/ 4/ W W W W W W W W W O av, �. ]C JOINT justices MT. -a JOINT o.a realrea D.B. 10]5-b5 PUT n. 4 105 6D Q 664 West Rio Pre Development VRRM Map Scale: 1"=60' W 1 W WI W W jr W W WIW IN. 45-100CW,I, 0 o W W W1. t43^ \ D _ -- / W W W W W W W W W W W W W W W W W \ ____-__' W W W W W W W W W W W W W W W W W W \ W ge W W W W W W W W W W W W W W W W W W IRA, t5i0CB W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W TM. 45-173 \ pW -\ ur awe W W W W W W W W W W W W W W W W W W W W W W \ W W W r 10� �TM. W W W W 2Y W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W Wr W \ (� _ -' II S W W W W W IN. 45-100A nW W �J W W W W W W /ate W W W ��/ W W W W 1: \ 11 +\ If , _ rQW W W W W W i( + V W W W -YLW , ca W W W W W �R W W W W W , W W W W ve W v " � W W W W W /�\) I\ � Wes//�a W TM. 45-100 $ W W W fat B yea a W W W CCD Mf �W W W Wt + ro rig W W W W W '�W W W W W W8 •; )_ 0100li SSW, R�W W W W W W I ( �sci W re lr m LOD W W W W W Q�W TM. 45-94B N& W W W W W ON W W=.M ♦ TM. 45-101 rg�� LOD ♦ W �+27B♦ � W W HSG B♦ ^4CW ^ ♦ 4?iSC� B ♦ MI s re ♦ DISTURBANCuET's , BENCHMARK: Y' ♦♦ MET.TB (� C£ DROP Ir- a3 EVATIONxIl ' ♦ , O W W ` �will W _W W W -WLOIll N�i`Dl1F LOD W LO,E Iv boo W W W W Q^ W W W W� --xxxxxxxiall- y` -k ]C .pNT ACOFS MT. Da tan-M" D.B. 1OW-05 FLATv 4los 60 0 60 120 180 b- 664 West Rio IN IN IN IN IN I Me Me Me Me Me Post Development VRRM Map Scale: 1"=60' TM. 45-173 TM. 45-94B ti 120 180 SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH T. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM U J MP Lice .45183 '6,� SI1.0s3 I, 040xi JssIWAta VSMP PLAN 664 WEST RIO ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2023.03.15 REVISION: FILE NO. VRRM MAPS & CALCULATIONS / 1 I C71