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Home My WebLink AboutWPO202000028 Plan - VSMP 2022-09-15VSMP PLAN AMENDMENT LEGEND EXISTING NEW DESCRIPTION BOUNDARIES BENCHMARK SITE PROPERTY LINE — — — — ADJACENT PROPERTY LINE BUILDING SETBACK PARKING SETBACK SITE TEXT 10 10 PARKING COUNT TOPOGRAPHY — — — — INDEX CONTOUR INTERVAL CONTOUR 311.5 x >2n SPOT ELEVATION 311.5 TC x >2 TOP OF CURB ELEVATION 311.5 TW xn� TOP OF WALL ELEVATION 311.5 BW x >2� BOTTOM OF WALL ELEVATION — ....... — STREAM STREAM BUFFER 100 YEAR FLOODPLAIN BUILDING BUILDING RETAINING WALL STAIRS EDGE OF PAVEMENT ROAD CENTERLINE FRONT OF CURB BACK OF CURB CG-12 TRUNCATED DOME SIDEWALK BIKE PARKING HANDICAP ACCESSIBLE AISLE HANDICAP PARKING MATERIAL 0 CONCRETE RIPRAP --------------------------------------- — ASPHALT EC-2 MATTING EC-3 MATTING 0 WETLAND TREELINE X X FENCE UTILITY UTILITY POLE m GUY WIRE oHu 0Hu OVERHEAD UTILITY ucu uou UNDERGROUND UTILITY STORM STORM MANHOLE q q DROP INLET STORM SEWER ® ROOF DRAIN SANITARY SANITARY MANHOLE SANITARY SEWER MAIN S S SANITARY SEWER LATERAL WATER W VV WATER LINE 0 0 WATER METER 0 0 WATER METER VAULT FIRE HYDRANT A FIRE DEPARTMENT CONNECTION GAS GAS GAS LINE EASEMENTS CONSTRUCTION GRADING ACCESS SIGHT DISTANCE UTILITY STORMWATER FACILITY MAINTENANCE / SWM STORMWATER ACCESS DRAINAGE SANITARY WATERLINE GASLINE NOTE: 1. THE SIZE OF THE SYMBOLS MAY VARY FROM WHAT IS SHOWN. REGENTS SCHOOL OF CHARLOTTESVILLE OWNER/DEVELOPER Regents School of Charlottesville Inc. 3045 Ivy Road Charlottesville, Virginia 22903 PLAN PREPARATION Shimp Engineering, P.C. 912 East High Street Charlottesville, VA 22903 (434)227-5140 ZONING EC - Entrance Corridor R1 - Residential SP201800011 approved on September 18, 2019 permitting a private school use on the site MAGISTERIAL DISTRICT Samuel Miller SOURCE OF TITLE DB 5237 P 251 DB 660 P 780 (plat) SETBACKS Front: 5' Side: 10' Rear: 20' SOURCE OF BOUNDARY AND TOPOGRAPHY Boundary is based on field survey by: Dewberry Engineers Inc. 4805 Lake Brook Drive Glen Allen, Virginia 23060 Provided on 05/11/2018, field verified by Justin Shimp, P.E. 10/22/2019 Topographic survey with two foot (2') contours provided by Quantum Spatial Topography of four foot (4') contours provided by Albemarle County GIS. BENCHMARK Datum for topography is NAVD 88 FLOODZONE These parcels lie within FEMA flood zones "X" and "A" as defined on FIRM map 51003CO268D, dated February 4, 2005. RESERVOIR WATERSHED This site is within the Moores Creek Watershed and the creek shown is a tributary of Moores Creek. Wetlands have not been identified on these parcels. This site is not within a watershed of a public water supply. WATER & SANITARY SERVICES This project lies within the ACSA jursidictional area for both water and sewer. Access to existing water and sewer service is available. EXISTING USE Vacant Land PROPOSED USE Private School (Grades K-12) LAND USE SCHEDULE EXISTING Area % Building 0 SF 0% Pavement 0 SF 0% Sidewalk 0 SF 0% Undeveloped Area 832,431.6 SF 100.0% Total= 832,431.6 SF (19.11 ac.) PROPOSED Area % Building 35,920 SF 4.3% Pavement 40,025 SF 4.8% Sidewalk 30,432 SF 3.7% Undeveloped Area 725,676 SF 87.2% Total= 832,431.6 SF (19.11 ac.) LIMITS OF DISTURBANCE 9.55 acres disturbance proposed. STREAM BUFFER DISTURBANCE 2,136 sf stream buffer disturbance proposed. Mitigation planting required at a 2:1 ratio of disturbance. 2,136 sf x 2 = 4,272 sf Option 1a replanting - for every 400 sf unit or fraction thereof, plant one (1) canopy tree measuring 1.5"-2" caliper, one (1) understory tree measure 0.75"-1.5" caliper, and one (1) small shrub 15"-18" in height. is specified on Sheet C1 1. 4,272 sf / 400 sf = 10.68 Required Mitigation Planting: 11 canopy trees, 11 understory trees, 11 shrubs Provided Mitigation Planting: 11 canopy trees, 11 understory trees, 11 shrubs FOREST AND OPEN SPACE / SWM EASEMENT 1) 5.48 acres Forest and Open Space / SWM Easement proposed. 2) The Forest and Open Space Easement is subject to the guidance set forth by DEQ in the Virginia Stormwater Management Program. The areas will remain undisturbed in a natural, vegetated state, except for activities as approved by the local program authority, such as forest management, control of invasive species, replanting and revegetating, passive recreations (e.g. trails), and limited bush -hogging to maintain desired vegetative community (but no more than four times a ear, except as permitted b existing easements and agreements). Further the construction installation relocation repair, Y � P P Y 9P. replacement, operation, and maintenance of new or existing public utility structures and facilities shall be permitted as described in existing and future utility easements and agreements. 3) No buildings, structures, or permanent roads (public or private) are permitted in SWM Open Space areas, except for structures and facilities associated with public or private utilities (pipes, valves, manholes, etc.) provided, however, that after construction, installation repair, replacement, operation, maintenance or removal of such utilities, any disturbed soil shall be restored to its original condition or an engineered soil mix shall be placed per the design specifications, and the SWM Open Space area or areas shall be returned to a natural vegetated state. 4) Areas of Forest/Open Space are to be demarcated (fenced off) prior to land disturbance. WP0202000028 TAX MAP 75, PARCEL 66 TAX MAP 76, PARCEL 17 ALBEMARLE COUNTY, VIRGINIA VICINITY MAPSCALE : 1 "= 1000' n Ragged Mountain Home /LLC 10 0 Virginia Eagle Distributing Co 0 SHEETINDEX C1 COVER C2 E&SC NARRATIVE C3 SITE OVERVIEW C4 E&SC PLAN C5 VRRM DRAINAGE MAP C6 PRE DEVELOPMENT DRAINAGE MAP C7 POST DEVELOPMENT DRAINAGE MAP y ;BUCKINGHAM 1 - BALMORAL HEIGHTS RESERVOIRftQAD - - Unlvershy Montasson School V Fontaine Research Park 4 T rmily Presbyterian i'.hurch aromas Cafet� and Caterwlq ' I CCU " IMAGE PROVIDED BY GOOGLE MAPS SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM o N sHIW C. O SStONAL �'' VSMP PLAN AMENDMENT REGENTS SCHOOL ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2022.09.14 REVISION: FILE NO. COVER 18.020 C1 PROJECT DESCRIPTION, GENERAL NOTES, EROSION & SEDIMENT CONTROL NOTES, AND SEQUENCE OF CONSTRUCTION PROJECT DESCRIPTION THIS PROJECT PROPOSES A PRIVATE SCHOOL WITH SEVERAL BUILDINGS AND RECREATIONAL AREAS ON WHAT IS CURRENTLY VACANT LAND. THE TOTAL AREA OF DISTURBANCE IS 9.55 ACRES. EXISTING SITE CONDITIONS ALL WORK SHALL BE COMPLETED ON THE SUBJECT PARCELS, ALBEMARLE COUNTY TMP 75-66 & 76-17. ON -SITE SLOPES ARE SOUTHEAST FACING AND AVERAGE 15%. THE SITE IS CURRENTLY HEAVILY WOODED. STORMWATER FLOWS INTO AN EXISTING STREAM FROM RAGGED MOUNTAIN RESERVOIR THAT EVENTUALLY LEADS TO MOORES CREEK. THIS PROPERTY IS BORDERED TO THE NORTH BY RESERVOIR ROAD; TO THE EAST BY TRINITY PRESBYTERIAN CHURCH; TO THE SOUTH BY THE U.S. 29 ENTRANCE RAMP TO 1-64W; AND TO THE WEST BY A VACANT PARCEL OWNED BY CLINTON KISNER. SOILS THIS SITE CONTAINS THE FOLLOWING SOIL TYPES BASED ON NRCS SOIL MAPS FOR ALBEMARLE COUNTY VIRGINIA: 14C - CHESTER LOAM 7-15% SLOPES 19B - MINNIEVILLE LOAM 2-7% SLOPES 19C - MINNIEVILLE LOAM 7-15% SLOPES 19D - MINNIEVILLE LOAM 15-25% SLOPES 77 - DAN RIVER-CODORUS COMPLEX 0-2% SLOPES OFFSITE AREAS: EXCESS MATERIAL SHALL BE HAULED TO A SITE WITH AN APPROVED EROSION AND SEDIMENT CONTROL PLAN. CONTRACTOR SHALL PROVIDE THE LOCATION OF AN APPROVED WASTE AREA AT THE TIME OF THE PRE -CONSTRUCTION MEETING. THE LOCATION MUST BE INCLUDED IN THE ON -SITE SWPPP. CRITICAL AREAS THERE ARE NO CRITICAL EROSION AREAS ON THE SUBJECT PARCEL. 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 SEDIMENT TRAP: A TEMPORARY SEDIMENT TRAP SHALL BE INSTALLED PER THE EROSION AND SEDIMENT CONTROL PLAN FOR THE PURPOSE OF DETAINING SEDIMENT AND SILT WITHIN STORM WATER RUNOFF. THE TRAPS SHALL REMAIN IN PLACE UNTIL THE SITE IS STABILIZED UNLESS OTHERWISE NOTED ON THE PLAN. 4. 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. 5. PERMANENT SEEDING: ALL DENUDED AREAS SHALL BE SEEDED IN CONFORMANCE WITH STD. AND SPEC. 3.32. 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. 6. DUST CONTROL: CONDUCT DUST CONTROL OPERATIONS NECESSARY TO MET THE REQUIREMENTS OF STD. & SPEC. 3.39 AS REQUIRED TO CONTROL SURFACE AND AIRBORNE MOVEMENT OF DUST. 7. INLET PROTECTION: A STONE WEIR SHALL BE INSTALLED AS A SEDIMENT FILTER LOCATED AT THE PROPOSED DROP INLET. REFER TO DETAILS ON SHEET C11. 8. TEMPORARY DIVERSION: TEMPORARY DIVERSION SHALL BE INSTALLED AS SHOWN ON THE EROSION AND SEDIMENT CONTROL PLAN AND DETAILS. THE DIVERSIONS SHALL BE INSTALLED PRIOR TO SIGNIFICANT LAND DISTURBING ACTIVITIES AND SHALL REMAIN IN PLACE UNTIL THE SITE IS STABILIZED UNLESS OTHERWISE NOTED ON THE PLAN. MANAGEMENT STRATEGY AND SEQUENCE OF CONSTRUCTION THE FOLLOWING ARE THE PROPOSED MANAGEMENT STRATEGIES AND DETAILED SEQUENCE OF CONSTRUCTION: PHASE 1 1. INSTALL CONSTRUCTION ENTRANCE. 2. INSTALL SEDIMENT TRAPS 1,2, AND 3 WITH ASSOCIATED SILT FENCE. 3. INSTALL DIVERSION DIKES. 4. CALL COUNTY INSPECTOR FOR APPROVAL OF EROSION AND SEDIMENT CONTROL MEASURES. 5. UPON APPROVAL, BEGIN MASS GRADING OF SITE. 6. PROTECT SOIL STOCKPILES WITH SILT FENCE AND TEMPORARY SEEDING AS NECESSARY. 7. TRANSPORT DIRT FROM PARKING LOT AREA TO FIELD AREA. PHASE 2 1. ONCE SITE IS BROUGHT TO GRADE, INSTALL STORM PIPE Al-A5 WITH CONNECTIONS A3a AND A4a. DO NOT INSTALL MANHOLE Al IN THIS PHASE, INSTEAD DIG SMALL CONVEYANCE CHANNEL FOR PIPE Al TO OUTLET TO SEDIMENT TRAP 2. 2. PLACE INLET PROTECTION ON ALL STORM INLETS. 3. BRING FIELD TO GRADE. 4. IF TOO MUCH WATER COLLECTS ON EASTERN HALF OF FIELD, PUMP IT TO SEDIMENT TRAP 1. 5. STABILIZE FIELD AREA WITH PERMANENT SEEDING. 6. BEGIN WATER & SANITARY INSTALLATION. PHASE 3 1. FINISH CONSTRUCTION OF BUILDINGS. 2. INSTALL RIP RAP CONVEYANCE CHANNEL AT OUTLET OF PIPE AO PRIOR TO PIPE INSTALLATION. 3. STABILIZE PARKING AREA WITH BASE STONE. 4. ONCE PARKING AREA IS STABILIZED, INSTALL MANHOLE Al AND PIPES Al -AO, Al-A1x, AND ALL ROOF AND YARD DRAINS. 5. ONCE FIELD IS STABILIZED, INSTALL PIPES A1d-Al AND 134-130. 6. KEEP INLET PROTECTION IN PLACE UNTIL ENTIRE SITE IS STABILIZED. 7. REMOVE SEDIMENT TRAPS, BRINGING THOSE AREAS BACK TO ORIGINAL GRADE. APPLY PERMANENT SEEDING AND LOW MAINTENANCE GROUND COVER WHERE SLOPES ARE 3:1 OR STEEPER. 8. INSTALL MITIGATION PLANTING IN DISTURBED STREAM BUFFER AREA PER PLANTING SCHEDULE. 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 USING EMISSION -CONTROL EQUIPMENT ON CONTRACTOR OPERATED EQUIPMENT, SHUTTING DOWN MOTORIZED EQUIPMENT WHEN NOT IN USE, AND ACTIVELY CONTROLLING DUST EMISSIONS THROUGHOUT THE PROJECT. 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. GENERALNOTES 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 LANDOWNERS WHOSE PROPERTY MAYBE 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. FIELD DENSITY TESTS SHALL BE PERFORMED AT A FREQUENCY OF ONE TEST PER LIFT PER 10,000 SQ FT OF MATERIAL PLACED AND COMPACTED TO WITHIN 95 (%) PERCENT OF STANDARD PROCTOR USING A GRID PATTERN OF 100 FT PER LIFT/OR AS CERTIFIED BY A LICENSED GEOTECHNICAL ENGINEER. I-STORMWATER MANAGEMENT: I RUNOFF FROM THE SITE IS ANALYZED AT TWO POINTS, LABELED PDA A AND PDA B. THE I PROPOSED STORMWATER DESIGN FOR THE POINT PDA A MEETS WATER QUALITY I REQUIREMENT SET FORTH IN 9VAC25-870-66-B.1.A AND 9VAC25-870-66.C.3.A. AND FOR THE I POINT PDA B MEETS 9VAC25-870-66. B.3.A. AND 9VAC25-870-66. C.2.B _ VSMP AMENDMENT DESCRIPTION WP0202000028 REGENTS SCHOOL OF CHARLOTTESVILLE, WAS APPROVED ON DECEMBER 16 2021. THIS AMENDMENT INCREASED (LOD) LIMITS OF DISTURBANCE AREA BY 0.79 ACRES, THE SCOPE OF THIS AMENDMENT ADDS A LARGE ATHLETIC FIELD, A SMALL WARM-UP FIELD AND THE ADDITIONAL CLASSROOMS, LOCATED ADJACENT TO THE ATHLETIC FIELD. SWM QUANTITY THE DRAINAGE AREA TO PDA A AT MOORES CREEK STREAM IS LOCATED AT THE SOUTH OF THE PROPERTY. THE DRAINAGE AREA TO PDA A WAS ANALYZED AND FOUND TO BE IN COMPLIANCE WITH THE CHANNEL PROTECTION REQUIREMENTS 9VAC25-870-66-B.1.A AND FLOOD PROTECTION REQUIREMENTS 9VAC25-870-66.C.3.A. RUNOFF FROM THIS DRAINAGE AREA IS CONVEYED IN A RIPRAP CHANNEL TO THE MANMADE PORTION OF STREAM MENTIONED ABOVE, WHERE IT IS LESS THAN 1% OF THE OVERALL DRAINAGE AREA AT THAT POINT. SHEET C6 SHOWS THE DELINEATION OF SITE AREA VERSUS TOTAL DRAINAGE AREA TO PDA A IN MOORES CREEK. THE DRAINAGE AREA TO PDA B WAS ANALYZED AND FOUND TO BE IN COMPLIANCE WITH CHANNEL PROTECTION REQUIREMENT 9VAC25-870-66-B.3.A AND FLOOD PROTECTION REQUIREMENTS 9VAC25-870-66-C.2.B. RUNOFF FROM THIS DRAINAGE AREA IS CONVEYED IN A PIPE AND OUTLETS TO A NATURAL STREAM WHICH EVENTUALLY DRAINS INTO MOORES CREEK AT RATES WHICH SATISFIES THE ENERGY BALANCE. THE POST DEVELOPMENT 10YR, 24 HR. PEAK FLOW RATE TO PDA B IS LESS THAN I PRE -DEVELOPMENT. I SWM QUALITY TO SATISFY WATER QUALITY REQUIREMENTS., 5.48 ACRES OF THE PROPERTY HAS BEEN PLACED WITHIN A FOREST AND OPEN SPACE/ SWM EASEMENT. 9VAC25-870-65 REQUIRES I THAT THE TOTAL PHOSPHOROUS (TP) NUTRIENT REDUCTION REQUIRED BY THE SITE I DEVELOPMENT BE TREATED IN ACCORDANCE WITH THE VRRM NEW DEVELOPMENT SPREADSHEET REDUCTION REQUIREMENTS. PER THE VRRM NEW DEVELOPMENT I SPREADSHEET, THE NEW TOTAL TP REDUCTION REQUIRED FOR THE SITE IS 3.51 LBS./YR., I THE ORIGINAL DESIGN REQUIRED 2.79 LBS./YR., TO ADDRESS THIS, AND ADDITIONAL 0.72 LBS./YR., NUTRIENT CREDITS WILL BE PURCHASED FROM THE SAME NUTRIENT BANK. I THIS ADDITIONAL AMOUNT WAS CAUSED BY THE ADDITION OF 0.27 AC TURF AND 0.41 AC I IMPERVIOUS TO THE PROJECT AREA. L-------------------------J EROSION & SEDIMENT CONTROL NOTES: 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:OOAM TO 9:0013M. 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 1000LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL 0 BE APPLIED AT 180LBS/ACRE AND CONSIST OF 95 /o KENTUCKY 31 OR TALL FESCUE AND 0 0-5 /o 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) 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 14 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 ouffall 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. 8. 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 ALIVE 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. SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM VSMP PLAN AMENDMENT REGENTS SCHOOL ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2022.09.14 REVISION: FILE NO. E&SC NARRATIVE 18.020 C2 ICI! V �` < �,, ", • PRESERVED R/F ♦ \\ WIL0 HURT �. SLOPES v ` D.B. Ono Pc. sso TM 5-59 f� `, 'Qn 1 , ZONE: RI RESIDENTIAL 1 \ USE: SINGLE FAMILY RESIDENTIAL DAM BREAK AREA DEDICAYfD 10 ALBFMARLE '.II , couNrr PER < 660,_. G. 774 INUNDATION ZONE DAVID HARLOW / O D.B. 2690, 61 154 / TM 75/ / ZONE: Ri RESIDSIDENTIA / USE: SINGLE FAMILY R IyCEN TIAL NSF / t/ �I RICHARD SG 1 / 1 1 D.B. 267PG. 94 \ - _ TM 7 7 ZONE Ri RESIDENTIAL USE: SINGLE FAMILY RESIDENTIALIN N F TON DINH N F N F D.B. 4415, PG. 7 i CECIL JOHNSON UNIVERSITY OF VIRGINIA FOUNDATION •� \.\ ,,w �y1 '�i' /' i i ) I / / TM 75-61A I D.B. 936, PG. 722 \\' I ,,_ ♦ 1 i I E R1 RESIDENTIAL TM 76-14 ZONE:D.B. 4170, PG. 689 1 \ i USE: SINGLE FAMILY RESIDENTIAL , I a� N. / 1 ZOIy�E: R1 RESIDENTIAL TM 76-13B 1 S SINGLE FAMILY RESIDENTIAL 1 ZONE: R1 RESIDENTIAL MANAGED SLOPES ❑ _ USE:SINGLE FAMILY RESIDENTIAL ` \\-�, � ?" 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HIGH ST. 434.227.5140 1 1 ``♦ �� 1 O `\\` '---_�,,, \ \ _ �,�I\ 'S0 - i-I. v_i- / `---7 / ' / / ,'\�i/ ` I I 1 I 1 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM ` k's'ss Ac"rss \\ -- _ - -__- - /// M /-- \ i i / E // / i(i ' / •i i i I ; `\ \\ • �y,� _ p \ - ,' N y i! c� 41. u0 ,.q\'`\```I1gtC,B \ .`\_ / ____ — )v/ m ��_ice 1 i /i ' i } / } \---� \,------------------- \ T 1 ; I, Q 4;N Ni ',i ?/ _--------------- Ii ___`c -Y __ ' / ,(� 9a i I i 1 ( ` ; \ \ ``` `♦ �.\ '\ 1 e ` `\\`:.�\-hr ^��„ \, 1• �1kAi � -_`_`_ _ / / ,. / / / /4+, / .` - -5A�11TARW SEI \``�`. `% ;Po'S�". // 4 . \\--------------""-" / / --- ---` - __� i ' / ' 'SWy1i' } l\ ♦` 1 \\ ♦ L 1♦______-' \ E1QSEPi T ' _- ' \ \♦` \t`� ` \\` O \ _ _ ___ /L \ U _ � a 8aa 'R6_ \ N .SHIM 100' STREAM -- ` \\ a,F� �� --- -' ---- / , . -= 1``` \ _' = <- `- \L -�°� •,\ \ c. 4 1 BUFFER "^� _ \ ---- --- - -- ' ( = -- -------- IN' 2 .x\_ `'' `" ♦�j Il :Y. /`/n ' �``'`♦ \1 `i / \''i'' \ <7` -i ` _--\\" '`J`♦♦ 'I j • ♦t�\ A� A —100 YR �� i`/--14,0 1 -----------------"-- \\ ``.I . / \ .I 'i i i`I - ' / / \ 1,' 11 .`\ \ .\ �� _________________ b. - NY \\\ VSMP PLAN AMENDMENT ur INS NI \ \ i _ REGENTS Al \ �\ "`I Iili.l,i li }' }'/ a(,:.i i'i' //♦ r.// J ''i -'' ' \\ \„ I11 -_ -,. A \ \�\'+ 1 L 1.1.. �111'� �IV ♦\�S� \ ��\``• 1�\\ `. I ♦ I 1 V t' / / i / / /---------------- 'XI \�`. ALBFMARLE COUNTY, VIRGINIA v \� P \SLOPES\ \ / TSNITY PRES�YTERIAA\CHURCH "\ \ ( �\ ��`, % I �� - \\\ SUBMISSION: ; \� \\ ' \ ` E ( I ' D.B. /30. PG. 459 {�- 2022.09.14 v�/IM 76-17C / -- /' \ _ ` A`, ( I� �1` �`, A II A I I \ * , I \ r / \ \ r \ I ! v v; \` ' ` _ v!`♦>� �( REVISION: ��`.-.A \\r `, A\I 1 , \\\\\ '///// / � ♦ % i lid 1 /\• r \% y i I NI A xVA4'\�P A V A l Ai t I A\T, --- ,. A ��, �V \ V v \ 1 ERY SB 56�P� - t5 PRE T.v a / �T. _ 6. 9 , II , V , , , , , i I it , A ♦I I _ __ _ A A A `, I vy v, i , �♦ , FILE NO 1 1 ----- '- 18 020 SITE OVERVIEW vv` / I % L 80 0 80 160 240 '' 1 �_yA v ✓ -_ �, I ; _ ,�_�'' �_� Graphic Scale: 1 "=80' C 3 / I ZONE: R1 RESIDENTIA/ / USE: SINGLE FAMILY R lINTIAL / 1 / I I SOIL EROSION & SEDIMENT CONTROL SYMBOLS / N/F / RICHARD SHRUM / 1 1 SYMBOL N0. TITLE KEY D.B. 2678, PG. 194 TM 75-60 / / 3.02 CONSTRUCTION ENTRANCE CE ZONE: R1 RESIDENTIAL 0 USE: SINGLE FAMILY RESIDENTIAL 3.05 SILT FENCE SF / I I ® 3.07 INLET PROTECTION IP / 1 1 3.09 TEMPORARY DIVERSION DIKE DD 9 \ / / _ N/� I z _ I N/F 3.11 RIGHT OF WAY DIVERSION I®N � TON $INH ;,,� f'=< z F i I 1 Z I11"/ 1 3.13 TEMPORARY SEDIMENT TRAP ST r,\\ / D.B. 441�, PG. � , �� CECIL�'OHNSON , UNIVERSITY OF VIRGINIA FOUNDATION [DRAWN TO SCALE] O TM 751=61A D.B. 91', PG. 722 I w I D.B. 4170, PG. 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Po ➢ON - \ \ \ \ \ IA: D LAR GBy S, 12 VSMP PLAN AMENDMENT .I A. UNDERS , AND HRues To BE A V V A § V �, INS ED Y Sif� IN BUGGER Jii y /rl \ k \ \ `\ \ t \ \ \ Be,_-- — , / •\ �� , '`\ REGENTS \ A NN \`..-V A` \ //� v.' a //� i ''/� �''' ' ' •//// v�v // ii a+B"` 1 1v 'V ss \ ;Vy `Vv A A\ �..v`- SCHOOL y IN, --------- --- V A A' `` AVr /I / I' l 1/ I /I / / / i i i / / / j `N \\ \\ \ ( \ \\ \\ \ \\ 1\ I 1 ;';'; ' / , % / \ \ �i\� -- 1 �\ ALBEMARLE COUNTY, VIRGINIA \ 1 \ `\ `\ \ \ / \ , SUBMISSION: < \� 1 I \ \ \ \ \ \ \ \ \ `\ \ \ \ ` `\ `\ \ \ \ \ \ g' / / / / / / \ \ I \ \ \ \ \ \ �\ , -- 2022.09.14 vvAA.. A \ \ ��. A Vv`�v� vv`v\V `v `�� `v ` V ` v '�\ \ ' i i I / i vv j r A v v .. 1 v •v v�> REVISION. I �V I `vv-vA A v V A\ � � '` � � ` ��` `. `v�VA NV V IIN. AIN A` v Y w� ., A v v v V r , / / _ v I v \ \ � v 1 ` I 1 1 1 I I ' ' I 1 `v `v 'v A / / ,= ' v / I i i ' : �`v \W' �� «V I v� i ♦ v`v � 1 1\. v 1 I `I 1 I I 1 I i i I V vv v v Ate-- ,_ _- 1 /.. 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I / OA\« w A «'�h o 60 0 60 120 180 I I I ♦ \ // \ �I % Scale:1"=60'1-----�/ __ C9 0 '0 ox, O ° 0I 0O 0 � �0°0Q°G 000 °0 0�00�000C O 0 QO 0qO 0 000 O 0 O\ 000< O 0. 00o 000 ° 00ou00 �0 Ogo00 oOg0 O ♦� 00000 �o \ O O O m \ 10 �0 0 00C SIG ° O D.B. 4110, rn. __ TM 75-59 ZONE: R1 RESIDENTIAL USE: SINGLE FAMILY RESIDENTIAL AREA DEDICATED TO ALBEMARLE C01Tot B. 660, PG. 774 SSG B O O� O OOO� O Q�°00 R � �j ° 0 C 0 OGT O O N/F O\O O SF N/F I UNIVERSITY OF VIRGINIA FOUNDATION CIL JOHNSON D.B. 4170, PG. 689 /1) O R(, / TM 7RESID r D. C. 1% 7 PG. 722 O O O O R ' o / ZONE: Rt RESIDENTIAL 11K 76-14 TM 7RESID SINGLE FAMILY RESIDENTIAL � ZONE: R1A@ESIDENTIAL ' SINGLE FA Y RESIDENTIAL ZONE: RI RESIDENTIAL .. O 0 Q q /Y o ._ a � � N �B�rk� E USE: SINGLE FAMILY RESIDENTIAL Q O 0 0 0 0 0 u* •t Q O Q 0, O Q 4T0yr y. ----- - t� si RE e I�RQAD --- - -- / -tr AREA DEDICATED TO gLBEAgLE COUNT'1� PER INST# 202200003247 S2S Q Q ° ! O Q OPEN SPACE Q O O q` • LOD v 5.48AC ° O ::: :::;:::;`4 .,.4.;::44'::::::.. i, t OCR O O .....,,i` if........... �i\ \/\\/\% :.............1.9C.`;"'...,, Q O 0 Q Q :::::::,r::.::.:::......: ....:: ...,, .,,::::::; " .`4\ \/\i _'..:::::: ::` \ /\ 00�0000Q::::: ::: :: 4i... ::,k:::::�\%\\\\\ illlll�';:: ;:::1:� •'.� ::° \\ \\E d O O",,...,,......'..y?!....: ........:: \\i\i\i\\ \ _III -I; k\:•4:;\ \1` \\ O Q O .,,,.,..,. +� :_';4•...,, \\/\i /IIL=111,kllirri- _�`Itllrll __�t'�rl=fll�ll-III ° HIS `$a O Q SOIL \ii\ \\ \\��\ IIIIIII� _ II III -III- II-III_IIL-III=III=111_II = 4 O O:::......:::�'�` (��e�{, 1=III=111111- 11=III=III-III=111111111111111111111;:: <ao• 0 0 O ; , , , . , , , , : , , : S .Y, ; ✓ ` „ / \/\ I I_ IMPERVIOUS AREA -I I I-III=111d 11- _ ; O�00 ::;.,,,,,,.: ■ •.,... ,,,..,.. t.,•.....,,,; ... 1'lllillll=ll - I -III_ 2.89 ACRES 1j=III-III_IILIIIII III=11 . O + MANAGED TURF AREA ' ' ' • • .. , . , III_III-III=III-III_ III=III=III=JIJTIu ,J 1f1=1, - III -III_ O l I -III -III- _-lip ` g ° O\° : . . . . . 6.65 ACRES ::::::::::: 4 ::: 'lII=III-IILIIL IIIIIIIIIIIIIIIIII'1 11 71r IL =71=III' - III -III-• 0 Q C?0 0 ° O $ 4 :. :/III j,/ II �ILlull1�I-1Til1r111 I I� --'' IIIr TiII=I I`I 11 �,I(��+IIITIII�II�II �4C°p.� ° ° A�%t ;�4II�IIIII�IIIII�IiII'i'=1iIIIII�IIIIITIIII �U �. :::::'`4 :::::......::: ......I.::::,:",: i � ri :,;.,. III=III- III_IILIILII=III=111111_IIL-III=III I +++r a �. s111=III=111 \ \ \,= III_III- ° Q��, O^^ T „ _ • , \ „ -IIIIII=III- / =111_I; O. APO°o c:::*►' /i\i\;IIII\\/\Ii ,....,,^ a O �5� %\\\IIIIIIIIII\%\�....ao O � • . , , . �• /\ii\\ I � \�\ I1=1I I_ i �� • ==,-rilk I_'/ �0 0 0 O 0 <Op• ....::::::-I 1�.° �\\i/ III-UZ10i'l$�1 \//O Q "./O9O �� QQ.,.,... ,,`' �1I IOO 0 q 0 Q �o..,,.,..::;.L-O Q ON O O Q `oo� .i'°° \/\�,,r�...k_,....,1 : /\%\.O00 0 LbD \ oo• \/III\/ /\\\:; ,....,, 000a Q� 000O0o O �.fl\\//\-IIIIII\x1�(\'.;::::::::::::� O ZOD O, , ,,,,,,, , ;U` t : • , , .. / Rivanna River Nutrient Bank Certificate No James-039 ° ° O ° Q O O O O O �:: ; ; ; :::: ; ; t • • ; ; ; ; :::: ; ; \ . O 0 O 0 0::::::: ;4 t ; , .o.� EOD►►gkgM; BREAK.: ::: August 4, zo2o`p: 0 O O O O O O ° O O O O 0 ...... KENDRAPATRICK,EIT +! O 00 0O00o0O O u:;;;:::::;;;: Project Engineer + O O O Q FOo Shimp Engineering, P.C. ° Q° 0 O 0 0 Q O �':Lov-►�. �oov 1 9 D 912 East High St. Charlottesville, VA 22902 '® O ° 0 Q O O 0 O o� Via email to' KendraCaDShimp-Engineering.com a te° O� O Q O /: H S G B Poo O O 0 A Q Q . ,n With a copy to: �N O Q Q °o LIMITS OF DISTURBANCE AREA Courtney Palumbo (cpal umho�iients-schooLol'e Q O O �t 9.55 ACRES Owner: Regents School of Charlottesville Inc. _�P' � O�RO�� 0 0 O :o Contact: Courtney Palumbo (cualumboii rceents-schOol.orB) �O Q Project: Regents School of Charlottesville 0 O /' Project No.: 18.020 Q O (O :6 DEQ SWM No.: O Location: Near 1 155 Reservoir Road Charlottesville, VA 22903 +� 00, O Q O Coordinates: (38.024612, -78.538353) �C Legal Reference: TMP 75-66 & 76-17 \+ O O a` Receiving Water: Moores Creek HUC12: 020802040402 Estimated Credits Required: 2.79 lb Dear Kendra and Courtney. This letter is to confirm the availability to your project (referenced above ) of authorized Nutrient Credits sufficient to meet the your above referenced estimated requirements of Nutrient Credits at our Rivanna River nutrient offset credit bank facility (the "Bank"). The Bank has been registered with the Virginia Department of Environmental Quality (DEQ). These Nutrient Credits are generated and managed under the terms of the Reduction Implementation Plan for the Bank dated November 2017. which was authorized by (DEQ) on September 5, 2018. The Bank has been authorized to provide Nutrient Credits for use in the James River watershed. These credits are transferable to those entities regulated under DEQ's Storm Water Management program in accordance with VA Code 62.1-44.15:27. If we can provide furl assistance please feel free to contact our office. Hotel Sir ital, LLC. Bank Sponsor By ana l r lk REGENTS SCHOOL ::11 11_' LEGEND El VRRM-TURF - LOD VRRM - IMPERV. Open Space/ SWM Easement 71 River Nutrient Offset Trading Bank, 31 Garrett Street, Warrenton, Virginia 20186 V N/F / DAVID HARLOW D.B. TM 7 PG. 154 TM 75-61 ZONE: R1 RESIDENTI USE: SINGLE FAMILY R I NTIAL N /F / / RICH ARD SHRUM / D.B. 2678, PG. 194 TM 75-60 / ZONE: R1 RESIDENTIAL USE: SINGLE FAMILY RESIDENTIAL / 7 � N/F TON DINH D B 4415 PG. 7 AMENDMENT : REVISE CREDIT LPURCHASE TO 3.51 LBS/YR 100 80 0 80 160 240 Graphic Scale: 1 "=80' 15' PRIVATE SANITARY SEWER EASEMENT b8" 611 PG 639 0 0 ° 0I Runoff Coefficients IRv) Asoik BSolis CSoils DSoik Forest/Open Spare 0.02 003 Od4 0.05 ManageciTud 0.15 020 022 0.25 Impervious Cover 0.95 095 0.95 0.95 SA8 SAS Treatment Volume (acre-R) Treatment volume(cubk feet) TP load (Ib/Tr) TN Load llb/vr) Infarmatlmal Pu eus ON 15,391 9.67 69.18 0.09 36% 6.65 0.20 44% 2.89 0.95 719% 15.(12 028 I \V X Project Name: Repots School Date: 11 9/13/2022 BMP Design SperiTrratiars tat: 2013 Draft Stds & Specs Site Information Post -Development Project (Treatment Volume and Loads) Land Cover (acres( A Soils BSmi, CSoils DSoils Totals rarest/Ocen Space lacresl - undinurbed, rated form o ens are ormforested 5.49 5.48 ManagiMTud (acres) -disturbed, graded torliamsmotherwrUtobe 6.65 6.65 Impervous Cower (acres) 2.89 2.89 •Porest/Opea Spaceamas must bepmIKWdm aw"ance vdth Me 14Mmp RulWfRad mion Merhad 15.02 Constants Annual Rainfall (Inches) 43 Target Rainfall Event(Inches) 1110 Total Phosphomi(TP)EM-(mg/U 026 Total Nitrogen (TN) EMC ( 1B6 Target TP Loatl(Ib/acre/Vd OAS Pj(unitlesscorrecuonfacnsr) 090 Forest/Open Space Caver (acres) Weighted Rv (forest) %Forest Ma raged Turf Cover (acres) Weighted Rv (turf) % Managed Turf Impervious Cover acres) Rv (impervious) %Impervious Ste Area (acres) Site Rv R <01 \\ :w1 ��A 1� n data inputcelk constantvalues cakulation cells SHIMP ENGINEERING2. LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM 1 Q;' JU SHIMP oAAa9S'IONAL VSMP PLAN AMENDMENT REGENTS SCHOOL ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2020.09.14 REVISION: FILE NO. 18.020 \ LAND USE MAP - C5_ \\\\ \ \ \ I 1 1 D.B. TM175 P59 650 \ ZONE: R1 RESIDENTIAL I\ 1\y,\ I111 11 I I I 1\ o USE: SINGLE FAMILY RESIDENTIAL / 1 AREA DEDICATED TO ALBEMARLE \ 1 I II�11I1111 IIII COUNTY PER D.B. 660, PG. 774 \ / \``\\\`\\1 \\\\\`\�\\\\III DAVIDNHARLOW O D.B. 2690, PG. 154 O \\\ \ \ \\\ \\\\\\\\ \\ ! / / 70NE: TRi RESIDENT / USE: SINGLE FAMILY R NTIAL NSF \ \ \\\ \\\\ RICHAR8 SHRUM D.B. 2678, PG. 194 \ \ \ \\ \ // TM 7 -60 ESID \1` J ZONE: M RESIDENTIAL USE: SINGLE FAMILY RESIDENTIAL / TON /DINH D.B. 4415, PG. 7 NSF N/F TM 75-61A D. BE IL JOHNS�22 USE: SINGLE R1 RESIDENTIDENTIAL UNIVERSITY OF VIRGINIA FOUNDATION / TM 76-14 D.B. 4170, PG. 689 ( 1 \ \ SIN L R7 RESIDENTIAL _ �n \ o SIN L FAMILY RESIDENTIAL ZONE: T R1RESIDENTIAL USE: SINGLE FAMILY RESIDENTIAL � ST ER R D A�—_� � \1\\ V� \\\ \\(/ I I \ ` \ \ \ \ �. /i / MARLE NTY PER INST# 202200003247 r�joA B I WOODS p° /z / / •Y �( \�/�/; (/ TOC=17.9 n MANAGED TURF DRAINAGE AREA TO ¢ p pp p p p p p MANAGED TURF — Y Tv p p p z x * x x x x POINT OF ANALYSIS B q0 p p p px x �� x \ \^ \\ \, IMPERVIOUS 0. 3.55ACRES,CN °IO =58 ppoppp px x , x x x x x x x x xxxxxxx O \ c \� "� p� "1ppp x x x x x x x x x x x x 0°°°°\Ip p p p x x x z zxxz * x x x /. °C] �y 1\ �j °O°°O°v �!�\\��\ 11 ¢j V ° (] /O/ / J _ ' / / 1Ya�/`'/�L��(y�j x z xx z x x x x x x x x z ° \\11\\\ \\� \�� 161E&�1��k /(h �0 O��YOP°Q�JO �/ /°\ x ° � �pA`YP1 // 9°o/1,COfOO°.Q9-oo�\o ooa o ° ° o v 1 O°�'y,_`Q�aC�4x` xx x x O°p6-�.0- ��-9� cl�$ \ IIII (IIIIIIII IIII// (cy°j�d�oF'of°moo°o °�°° °0-�°� �e�e�° }o°ov°mt° \ I d° 0 0 o—s o �b o o R o o x a s e \\ \ REGENTS SCHOOL PRE DEVELOPMENT DRAINAGE AREA OVERVIEW LEGEND 0o PRE DA - POA (A) - WOOD — — — — PRE DA _POA (A) — — — — PRE DA _POA (B) PRE -TOC PRE DA - POA (A) - IMPERV. oo� LOD +++ PRE DA - POA (A) - TURF ALL SOIL HSG: B PRE DA - POA (B) - WOOD Rvvv v v vvv PRE DA - POA (B) - TURF vv AMENDMENT: RECALCULATED PREDEV DRAINAGE AREA TO INCLUDE NEW, LARGER LIMITS OF DISTURBANCE. SEE SHEET C7 FOR I ADDITIONAL DETAIL. I L J III I\�° o °�Oee�Oo°�°O`\t °1-Oo� b °�� Ogyo 1p� ° o �Qoaf16�° WOODS = \P\X ooac�o O °0�— Op o oo—�0° DRAINAGEAREATO O °m°oO7 \ \ \\ \\\z�� L\\ \ / / �\ 49 a�� POINT OFANALYSISA Q� V �J \ �- — Q ° Q C� �O g 6.46 ACRES, CN = 60 O ' \ _ — _ _ —� / / —�\ \\\\\``��_'�/�/� \7\°0�..0/��°�.g"O(°�5L // //I/I'O Uozo-°oOPo Oo900 — 1 o e b/�eo �eoi�d I Ct pop 9F�1S�URBANCE ARE / ( ( 1 — — — — �ANl RYlSEaiE` ACRIS 6 ( \ \ \ \ -77 N \ \\\\\ v V�\\\V A v w vvv vvAv WIN SHIMP ENGINEERING2. LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM �L v JU IRMP 44��s vet c.A�r'K27iswj 0�`��9to�vat VSMP PLAN AMENDMENT REGENTS SCHOOL ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2022.09.14 REVISION: FILE NO. 18.020 PRE DEVELOPMENT DRAINAGE AREA MAP 80 0 80 160 240 Graphic Scale: 1"=80' C6 \ N/F WILLIAM HURTT D.B. 4110, PG. 650 \\\ \ \ \ \ TM 75-59 \\ I\ 1\ 1 I ZONE: RI RESIDENTIAL 1 USE: SINGLE FAMILY RESIDENTIAL 1 AREA DEDICATED TO ALBEMARLE COUNTY PER O.B. 660, PG. 774 \�� VA� XAAV\\ \\\`\\ \ \ i\ N/F DAVID , PC. 1 / D.B. TM 7 PG. 154 TM 75-61 ZONE: R1 RESIDENTI USE: SINGLE FAMILY R I NTIAL N/F RICHARD SHRUM D.B. 2678, PG. 194 / / TM 75-60 ZONE: R1 RESIDENTIAL USE: SINGLE FAMILY RESIDENTIAL / T \ / N/F TM 75-61A CECIL JOHNSON ZONE: R1 RESIDENTIAL D.B. 936, PG. 722 USE: SINGLE FAMILY RESIDENTIAL \ � TM 76-14 ZG E: RI RESIDENTIAL SIN L FAMILY RESIDENTIAL P MAD f 0�00 °p �o��°°�od0\�o-N �j � �� ` ®fJ MANAGED TURF > O \ \ �� < \\\\ \ 1 \ \_ — _ \ 1 A x 9 �/ MANAGED TURF / � �I\�\j \ \ < TOC-16.2 min\ \ \ \ DRAINAGE AREA TO POINT \ \ II— \\\ \ \ \\ OF ANALYSIS B \ 1.70 ACRES, CN = 60 ' \ \ \ 9�° O O \1II\I\�PAEA26 I'/ I�I� II III / l < < �<< �, < < N/F ' I I I TON DINH D.B. 4415 PG 7 O N REGENTS SCHOOL POST DEVELOPMENT DRAINAGE AREA OVERVIEW LEGEND POST DA POA (A) LLL POST DA - POA (A) - TURF — POST DA (B) LLL _POA POST DA - POA (A) - IMPERV. POST - TOC _ Loo— LOD 0000 0000 - POA (B) -TURF ALL SOIL HSG: B MPOSTDA 000° oo°° MPOST DA - POA (B) - MEADOW N/F AMENDMENT: RECALCULATED POSTDEV DRAINAGE AREA TO INCLUDE NEW, LARGER LIMITS UNIVERSITY of VIR70, PG. 689 IA FOUNDATION 4170, POF DISTURBANCE. AMENDMENT ADDS 0.69 ACRES TO POA A, AND 0.10 ACRES TO POA B. D.B. D.I TM 76-13B ZONE: R1 RESIDENTIAL usE: SINGLE FAMILY RESIDENTIAL RUNOFF TO POA A STILL MEETS 9VAC25-870-66.B.1.a. AND 9VAC25-870-66.C.3.a BECAUSE THE A \ I CONTRIBUTING DRAINAGE AREA REMAINS LESS THAN 1 % OF THE TOTAL DRAINAGE AREA AT _ L �NTY PER INSr THE POA, WHICH IS OF DISCHARGE INTO MOORES CREEK. THIS PORTION OF MOORES CREEK #-`vOoo3247 I IS A MANMADE CHANNEL. RUNOFF TO POA B STILL MEETS 9VAC25-870-66.B.3.a. AND 9VAC25-870-66.C.2.b. BECAUSE THE RUNOFF DISCHARGED TO THIS POA, WHICH IS IN A NATURAL CHANNEL PRONE TO FLOODING, IS BELOW THE ALLOWABLE PEAK FLOW RATE REQUIRED BY THESE REGULATIONS. 4 1 11 Zz MANAGED TURF <� �� — « (< Sr<`� \IX\ � ,� `;��\ \� \\\ \,, << < << < � �� , , �/ „gip �� C<< /< — — — — � � as�aa'9AIaCEIAEIA5\4 AT \ A RY SE < < — _DRAINAGE AREA TO POINT OFANALYSIS A 7.85 ACRES, CN = 75 \N� 'Nz I��\\� \�\\\\ \` �A\\`\``\ \\\\\\ \\ \ \\ \y\\ \\\\`� \\\\ \�, \��\\\\\`I\ SHIMP ENGINEERING2. LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM ��.t, c.ql%�2'� w4. sstONAL VSMP PLAN AMENDMENT REGENTS SCHOOL ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2022.09.14 REVISION: FILE NO. POST DEVELOPMENT DRAINAGE MAP 18.020 RE 0 RE 160 240 Graphic Scale: 1 "=80' C7