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HomeMy WebLinkAboutWPO201800059 VSMP - SWPPP 2019-08-15 , AL,T ,rl COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road,North Wing Now.- Charlottesville,Virginia 22902-4596 Tel. (434)296-5832 • Fax(434) 972-4126 Stormwater Pollution Prevention Plan (SWPPP) For Construction Activities At: Project Name: University of Virginia Foundation Tennis Facility and Parking Lot Expansion Address: Golf Course Drive Charlottesville, VA 22903 Prepared by: Name: Dewberry Engineers Inc. Prepared for: Name: Nat Perkins c/o University of Virginia Foundation SWPPP Preparation Date: June 20, 2019 (This document is to be made publicly available according to 9VAC25-880-70, Part II, section D) APPROVED by the Albemarle County Community Development Department Date SlS/Zeiq File {✓Pis 2 o is 000 3-41 Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County CONTENTS: (from Albemarle County Code Sec. 17-405) i. Registration statement 2. Notice of general permit coverage 3. Nature of activity 4. Erosion and Sediment Control Plan. 5. Stormwater Management Plan 6. Pollution Prevention Plan. 7. Discharges to impaired waters, surface waters within an applicable TMDL wasteload allocation, and exceptional waters. 8. Qualified personnel 9. Signed Certification 10. Delegation of authority. 11. General permit copy 12. Inspection logs Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 1. Registration statement (Provide a signed completed copy of the DEQ registration statement) Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP)Albemarle County Section 2. Notice of general permit coverage (This notice is to be posted near the main entrance according to 9VAC25-880-70, Part II, section C.) (Provide a copy of the DEQ coverage letter when obtained) Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 3. Nature of activity ;Provide a detailed narrative of the construction activities. Include or reference a construction schedule and sequence. Include any phasing.) The project documents are the plans and design computations for the project entitled "University of Virginia Foundation Tennis Facilities" (60 Plan Sheets:T1.01, C0.01-00.03, C1.01-C1.05, C2.01-C2.04, C2.11-C2.14, C3.01-C3.05, C3.11-C3.15, C4.01-C4.14, C5.01-05.07, C6.01-C6.11, and C7.01), Revision 4, dated June 2019, which address most of the information required in the Stormwater Pollution Prevention Plan (SWPPP). Information not found in these documents is identified below. Project Description: The University of Virginia Foundation seeks to build a new Tennis Facility and seven additional tennis courts to the Boar's Head Sports Complex. This addition will also renovate the existing parking lot at the Golf Clubhouse. The development also includes the routing of utilities to the proposed building including water, sanitary, gas, and electrical and the routing of stormwater throughout the site. Project Sequence: The project included the installation of erosion sediment control features. Once erosion control measures are adequately and completely installed, demolition operations will occur concurrently with the installation of the new improvements. Once the installation of all site features and hardscape are completed, the construction shall be completed followed by final stabilization. Project Area Disturbance: The expected area of disturbance is approximately 9.75 acres. Potential Pollution Sources: Other potential sources of storm water pollution include chemicals, concrete, paint, tar, wood, metal, fuel, oil, and other fluids associated with heavy equipment, and fertilizer used in seeding and sodding. Though structural control measures such as containment diking are impossible on a construction site, care will be taken to reduce the risk of spills. Fueling operations will be continuously supervised. Fertilizer and other materials stored on site will be covered to reduce the possibility of contact with storm water. Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County Section 4. Erosion and Sediment Control Plan. (Provide a reduced, 1 1x17 copy of the latest Erosion and Sediment Control Plan. Do not reference only.) Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County • _ " • - I J GENERAL NOTES ALBEMARLE COUNTY GENERAL CONSTRUCTION NOTES LEGEND FOR EROSION & SEDIMENT CONTROL PLANS Dewberry 1. THE INFORMATION AND DATA SHOWN OR INDICATED WITH RESPECT TO DIVING UNDERGROUND FACILITIES AT OR CONTIGUOUS TO THE SITE 0----4 0 8'HIGH CHAIN LINK CONSTRUCTION IS BASED ON INFORMATION AND DATA FURNISHED TO THE ENGINEER BY THE OWNER. THE OWNER AND ENGINEER SHALL NOT BE RESPONSIBLE FOR THE ACCURACY OR COMPLETENESS OF ANY SUCH INFORMATION OR DATA. THE CONTRACTOR SHALLHAVE FULL 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE-CONSTRUCTION CONFERENCE,ONE WEEK . FENCE W/GREEN SCREEN Dewberry Engineers RESPONSIBILITY FOR REVIEWING AND CHECKING ALL SUCH INFORMATION AND DATA,FOR LOCATING ALL UNDERGROUND FACILITIES SHOWN OR PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTMTY,AND ONE WEEK PRIOR TO THE FINAL INSPECTION. - - - - - PROPOSED LIMITS OF DISTURBANCE berry 9 INDICATED PRIOR TO CONSTRUCTION,FOR COORDINATION OF THE WORK WITH THE OWNERS OF SUCH UNDERGROUND FACILITIES DURING _ rs Inc.I WmlMaox acre,sane 200 CONSTRUCTION,FOR THE SAFETY AND PROTECTION THEREOF RESULTING FROM THE WORK,ALL OF WHICH WILL BE AT NO ADDITIONAL COST 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS GWIAYn•VA 2306o TO THE OWNER.CONTRACTOR SHALL CONTACT'MISS UTILITY.OF VIRGINIA AT 1-800-552-7001 72 HOURS PRIOR TO THE START OF AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VNCINl4 REGULATIONS VR 625-02-00 1 �WN J A RDSCAPE TO BE DEMDUSHED Fuo e042130.7926 CONSTRUCTION.WORK SHALL BE SUBJECT TO INSPECTION BY THE UNNRSOY OF ARGINIA FOUNDATION.THE CONTRACTOR WILL BE EROSION AND SEDIMENT CONTROL REGULATIONS. .rrnweny.wm E RESPONSIBLE FOR APPLYING FOR WA EXCAVATION PERMIT WITHIN TWO HOURS OF NOTIFYING MISS UTILITY. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. TREE TO BE DEMOLISHED 2. WHEN WORKING ADJACENT TO EXISTING STRUCTURES,POLES,ETC.,CONTRACTOR SHALL USE WHATEVER METHODS THAT ARE NECESSARY TO 4. A COPY OF THE APPROVED EROSION MID SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE 511E AT ALL TIMES Z PROTECT STRUCTURES FROM DAMAGE.CONTRACTOR SHALL HAND EXCAVATE WITHIN 5'OF ALL BUILDINGS AND WALLS. REPLACEMENT OF N �A- AA - UTILITY/STRUCTURE TO BE DEMOLISHEDO I- DAMAGED STRUCTURES SHALL BE AT THE CONTRACTOR'S EXPENSE. 5. PRIOR TO COMMENCING LAND DISTURBING ACTT/RTES IN AREAS OTHER THAN INDICATED ON THESE PLANS(INCLUDING,BUT NOT SITE FEATURE TO BE DEMOLISHED 3. CONTRACTOR SHALL IMMEDIATELY REPORT ANY DISCREPANCIES BETWEEN EXISTING CONDOIONS AND CONTRACT DOCUMENTS TO THE LIMITED TO,OFF-SITE BORROW OR WASTE AREAS),THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL J ENGINEER. PLED TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. 620 PROPOSED MAJOR CONTOUR Q 0) 4. WHEREDIE LOCATION ARE ONLY APPRROXTILTE.THEACROSS ONTRRAACCTOR ES OF SHALL THE LOCATEOALL EUNO RGROUND NOT LINESNECESSARILY AND STRUCTURES AS NECESSARY ON THE PLANS.AND 6 PREVENT THE CONTRACTOR OSION IAND RESPONSIBLE SEDIMENTATIONFOR AS DETERMINED BY THOF ANY E PLLAN APPROVINDMONAL G AUTHORITY.MEASURES NECESSARY TO 618 PROPOSED MINOR CONTOUR ZZ Z w PRIOR TO CONSTRUCTION. UTILITY EASEMENT cc 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIES DURING LAND DISTURBING ❑ Y G 5. ALL MATERIALS AND CONSTRUCTION SHALL COMPLY WITH THE CONSTRUCTION DOCUMENTS. ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. LICE PROPOSED ELECTRICAL UNE 0 CC D 6. EXISTING CONDITIONS MAPPING: B. DURING DEWATERING OPERATIONS,WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. W PROPOSED WATER UNE LL < C..)- A. BOUNDARY AND TOPOGRAPHIC SURVEY PROVIDED By KIRK HUGHES&ASSOCIATES SURVEY DATED APRIL 2017. yQ Z 0 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF-PRODUCING ca -- PROPOSED STORM LINE Q Z (7 7. 955 COMPACTION SHALL BE OBTAINED FOR ALL FILL AREAS,INCLUDING UNDER UTILITIES AND APPURTENANCES.COMPACTION SHALL BE RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES 0• • 2 ACHIEVED IN ACCORDANCE WITH ASTAI-D698,STANDARD PROCTOR DENSITY. SHALL BE MADE IMMEDIATELY. PROPOSED RETAINING/SEAT WALL Z ❑ - Z 5 8. ANY ALTERATIONS AND CONNECTIONS TO ANY LTRUTY MUST BE COORDINATED THROUGH THE UNIVERSITY FOUNDATION AND UTILITY OWNER. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED,DESIGNATED BORROW AREA ---------_ _ - Z Cl) O g COSTING PROPERTY UNE 9. CONTRACTOR WORK DAYS AND HOURS SHALL BE FROM 8 AM TO 5PM MONDAY THROUGH FRIDAY.ANY DEVIATION FROM THIS SCHEDULE 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY,FREE - - STOPPING SIGHT DISTANCE UNE CC - < 0 LI, SHALL BE APPROVED BY THE UNIVERSITY FOUNDATION.SHUTDOWNS WILL BE PERFORMED AT NIGHT AND WEEKENDS WITH 10 DAYS WRITTEN OF ROOTS.STUMPS.WOOD,RUBBISH,AND OTHER DEBRIS. -' - - NOTICE.CONTRACTOR TO CONFIRM WORK BLACKOUT DAYS WITH OWNER PRIOR TO CONSTRUCTOR - - --UD- PROPOSED UNDERDRAIN > 3 n 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. v cc 7 10. CONTRACTOR SHALL PROTECT THE ACTIVE WORK AREA WITH CONCRETE VEHICULAR BARRIER,CHAIN LINK FENCE WITH GREEN SCREEN,OR • PROPOSED MANHOLE / I- CONSTRUCTION SAFETY FENCE.AS SHOWN ON THE DRAWING. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 OF THE CODE OF ALBEMARLE. 0 U W� Z 11. CONTRACT SHALL VERIFY DEPTHS OF ALL UI1Lf1'Y CROSSINGS PRIOR TO CONSTRUCTION 14. BORROW,FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL-TYPE POWER EQUIPMENT SHALL BE UMITED TO THE HOURS OF O• PROPOSED CLEANOUT 7:SOAM TO 9:00 PM. . H PROPOSED GTE VALVE Q 0 D 12. CONTRACTOR SHALL PROVIDE CONSTRUCTION SIGNAGE AND FLAGMEN AS NECESSARY. LL (� 15. BORROW,FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNR THAT MAINTAINS LATERAL SUPPORT,IN ORDER TO O PROPOSED INDICATOR VALVE(PR) 13. CONTRACTOR SHALL PROVIDE A PEDESTRIAN AND VEHICULAR MAINTENANCE PLAN TO THE UNNRSITY FOUNDATION FOR APPROVAL PRIOR TO MINIMIZE ANY HAZARD TO PERSONS,PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS,AND DAMAGE TO ANY PUBLIC U) U) o CONSTRUCTION. STREET BECAUSE OF SLIDES,SINKING,OR COLLAPSE. ,Y, PROPOSED FIRE DEPARTMENT CONNECTION(FOCI CC - 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL,MANTAN,REMOVE OR CONVERT TO PERMANENT STORMWATER VIRGINIA UNIFORM CODING SYSTEM _ LL.I Z O 14. All CONTACTOR LAYDOWN AREAS SHALL BE LOCATED WITHIN THE LIMITS OF DISTURBANCE UNE AS SHOWN ON THE SITE PLAN. .- Z MANAGEMENT FLOT, I WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE FOR EROSION AND SEDIMENT CONTROL PRACTICES I W A PROPOSED DRIP VALVE VAULT \ T 15. CONTRACTOR SHALL SECURE ALL OPEN EXCAVATIONS AT THE COMPLETION OF EACH WORK DAY WITH FENCING,BACKFIWNG OR OTHER SALE OF ANY LOT,UNIT,BUILDING OR OTHER PORTION OF THE PROPERTY. O/ /- w METHOD OF COVERING TO PREVENT VEHICULAR OR PEDESTRIAN ACCESS. x Z H 17. TEMPORARY SUBIUZATON SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS/ACRE,AND IN THE !�!�/;- SPOT ELEVATION 16. FIRE ACCESS TO EXISTING BUILDINGS SHALL BE MAINTAINED THROUGHOUT THE PROJECT AND COORDINATED WITH THE LOCAL FIRE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE,OR IN 3.02 CONSTRUCTION ENTRANCE ® i_._•:_ 695P DEPARTMENT. MARCH AND APRIL TO CONSIST OF ANNUAL RYE,OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80 LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL 17. CONTRACTOR MAY ONLY COMPLETE TREE CLEARING ACTIVITIES FROM SEPTEMBER 16TH,2018 TO APRIL 14TH,2019.IF THE CONTRACTOR INSPECTOR. 3.05 SILT FENCE () X X - PROPOSED LIGHT DUTY ASPHALT PAVEMENT SEAL •4YAAxx y WOULD UKE TO CLEAR OUTSIDE OF THIS WINDOW,THEY SHALL COMPLETE A FIELD SURVEY TO ENSURE NO NORTHERN LONG-EARED BAT `• - ROOSTS ARE IN THE VICINITY.ANY ROOSTS FOUND MAY NOT BE DISTURBED THROUGHOUT THE DURATION OF THE PROJECT. 18. PERMANENT SIABIUZATON SHALL BE LIME AND FERTILIZER,PERMANENT SEEDING,AND MULCH. AGRICULTURAL GRADE - ,�. �. LIMESTONE SHALL BE APPLIED AT 90 LBS/1000SF,INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL FERTILIZER SHALL 3.07 INLET PROTECTOR IPjo F.CAMERO3V<z 18. CONTRACTOR SHALL LOCATE ALL PRIVATELY OWNED LTIUTES PRIOR TO CONSTRUCTION,INCLUDING BUT NOT LIMITED TO,FOC LINES,WATER BE APPLIED AT 1000 LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT - v v V V v Z a UNES,IRRIGATION,SITE LIGHTING,ROOF DOWNSPOUT DRAINAGE,FOUNDATION DRAINS,ETC. 180 LBS/ACRES AND CONSIST OF 95%KENTUCKY 31 OR TALL FESCUE AND 0-5%PERENNIAL RYEGRASS OR KENTUCKY ��v v v v v V PROPOSED HEAVY DUTY ASPHALT PAVEMENT CV 5- _ v O V V V V P�.MORE 19. ALL WATER LINES,SEWER LINES.AND FIRE LIMES FROM THE MAIN TO THE STRUCTURE MUST HAVE A VISUAL INSPECTION PERFORMED BY BLUEGRASS.NTERSTRAW R IS E BE APPLIED AT 80 LBS/1005F. ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE 3.09 TEMPORARY DIVERSION DIKE T THE BUILDING DEPARTMENT. COUNTY EROSION CONTROL INSPECTOR. w Ems•N0. IO S27S q. 19. MAINTENANCE:ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO ® �9p +4 4. 20. ALL ROOF DRAINS SHALL DISCHARGE IN A MANNER NOT TO CAUSE A PUBLIC NUISANCE AND NOT OVER SIDEWALKS. STRUCTURAL MEASURES IS TO BE REPAIRED IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50%OF THE WET STORAGE 3.14 TEMPORARY SEDIMENT BASIN PROPOSED CONCRETE PAVEMENT 'SwS •C,A•`°• 21. RETAINING WALLS GREATER THAN 3 FEET IN HEIGHT REQUIRE A SEPARATE BUILDING PERMIT.WALLS EXCEEDING 4 FEET IN HEIGHT REQUIRE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STMIO ••ANC 44A•M4IxA• OF GRASS. SILT FENCE AND DIVERSION DIKES WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED 3.18 OUTLET PROTECTION A STAMPED ENGINEERED DESIGN ALSO. ® _!. AND REPAIRED IMMEDIATELY. - 10=Y PLAN 22. ACCESSIBLE PARKING SPACES AND ACCESS AISLES SHALL NOT HAVE A SURFACE SLOPE GREATER THAN 1:48.ACCESS AISLES SHALL BE AT 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS OF FINAL SITE C THE SAME LEVEL AS THE PARKING SPACE THEY SORE. STABILIZATION,WHEN MEASURES ARE NO LONGER NEEDED,SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL 3.31 TEMPORARY SEEDING © BW=BOTTOM OF WALL MH=MANHOLE RIM 23. ADDRESS ACCESSIBILITY REQUIREMENTS IN CONJUNCTION WITH CHAPTER 11 OF THE VCC AND ANSI A117.1. INSPECTOR. • 1W=TOP OF WALL SP=SPOT 21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WITHIN 1 YEAR OF THE DATE OF APPROVAL(WATER 3.32 PERMANENT SEEDING ® EP=EDGE OF PAVEMENT SW=SIDEWALK PLANT PROTECTION PROTECTION ORDINANCE SECTION 17-204G) 7. TREES AND VEGETATION ADJACENT TO THE ACTUAL WORK AREA OR BORROW AREA ARE TO BE PROTECTED WITH TEMPORARY FENCING 22. PERMANENT VEGETATION SHALL BE INSTALLED ON ALL DENUDED AREAS WITHIN NINE(9)MONTHS AFTER THE DATE THE LAND 3.35 MULCHING EX=EXISTING TC=TOP OF CURB CHAIN LINK FENCE FOR TREES;CONSTRUCTOR SAFETY FENCE FOR VEGETATION)TO PRESERVE EXISTING ITEMS INDICATED TO REI,WN AND DISTURBING ACTNRY COMMENCED.(WATER PROTECTION ORDINANCE SECTION 17-2078) ( GR=GRATE BC=BOTTOM OF CURB TO PREVENT DAMAGE TO PROPERTY. SOIL STABILIZATION 3.38 BLANKETS AND MATTING ® HP=HIGH POINT FFE=FINISHED FLOOR SCALE TIL 2. UNDERGROUND NES SHALL BE LOCATED SO THAT CONSTRUCTION WILL NOT DAMAGE OR DESTROY THE PLANTS TO REMAIN. UTILITY TRASH AND RECYCLE ELEVATION TRENCHING SHALL NOT BE LOCATED CLOSER THAN 1'-0'FOR EACH 1'IN DIAMETER UP TO A MAXIMUM OF 20'-0-FOR TREES TO REMAIN. DAMAGED TREES MID PLANTS SHALL BE RESTORED TO THE SATISFACTION OF THE UNERSITY. TREE PRESERVATION& AN1. A DESIGNATED DUMPSTER AREA IS NOT NEEDED AND ALL WASTE MATERIAL SHALL BE COLLECTED BY STAFF FROM THE BOAR'S HEAD 3' PROTECTION -TIP TP- 3. THE PARKING OF VEHICLES AND STORAGE OF Y CONSTRUCTION EQUIPMENT OR MATERIALSSHALL NOT OCCUR UNDERTHE DRIP UNE OF SPORTS CLUB AND TRANSPORTED TO A CENTRALIZED COLLECTION POINT. TREES TO BE PROTECTED. 0..-!) - 3.39 DUST CONTROL GENERAL DEMOLITION NOTES CUT&FILL NOTES 1. DUE TO THE EXTENSIVE PROPOSED CUT AND FILL WORK,THE WASTE AREAS HAVE BEEN ENSURED TO HANDLE THE VOLUME.PLEASE SEE 1. SAW CUT AND REMOVE ALL ASPHALT AND CONCRETE TO LIMITS REQUIRED FOR PROPOSED WORK. ADJACENT OVA DOE COURSE PLAN FOR AREAS OF HANDUNG. REVISIONS 2. REMOVE VEGETATION.GRASS,A ROOTMAT IN AREAS TO RECEIVE NEW ASPHALT AND CONCRETE PAVEMENTS. 2. PROPOSED CUT:53,304 CY. • 3. ALL PRIMARY UTLITIES DISCOVERED DURING DEMOLTON OPERATIONS THAT SERVE OTHERACTMTES SHALL BE PROPERLY PRESERVED AND PROPOSED NET:4 CC• PROTECTED. PROPOSED NET:47,ST513 CV(CUT? - , _ - 4. THE CONTRACTOR SHALL IMMEDIATELY REPORT TO THE OWNERANY UNFORESEEN OR ADVERSE CONDTONS DISCOVERED DURING DEMOLITION SCUT&FILL VOLUMES ARE ESTIMATES AND NOT MEANT FOR CONSTRUCTION OR PRICING PURPOSES. B OPERATIONS. • 4 06/20/19 ACO REVISION 4 5. CONTRACTOR SHALL PROTECT EXISTING PLANT MATERIAL NOT DESIGNATED FOR REMOVAL OR RELOCATION FROM DAMAGE DURING PARKING SCHEDULE CONSTRUCTOR. 3 05/10/19 ACO REVISION 3 • 2 02/27/19 ACO REVISION 2 6. CONTRACTOR SHALL KEEP ALL SURROUNDING PUBLIC ROADWAYS AND DRAINAGE STSI LAPS FREE FROM DIRT,MUD,AND CONSTRUCTION EXISTING PARKING:141 SPACES(2 HANDICAP) DEBRIS AT ALL TIMES. PROPOSED PARKING:237 SPACE(2 HANDICAP) 1 01/03/19 ACO 100%DOCUMENTS 07/23/18 JRC HODS DOCUMENTS 7. LIMITS OF DEMOLITION ASNE INDICATED ON PLANTOARE MINIMUM. CONTRACTOR COPE REMOVE ASPHALT PAVEMENT,CONCRETE AND THE PROJECT WILL INCREASE THE NUMBER OF SPACES ON SITE TO ADEQUATELY ACCOMMODATE THE PROPOSED DEVELOPMENT IN ACCORDANCE ' MISCELLANEOUS fTEMS AS NECESSARY TO FACILITATE CONSTRUCTOR IN ACCORDANCE WITH STATE AND LOCAL REGULATIONS. WITH THE CURRENT PARKING MASTER PLAN FOR THE BOAR'S HEAD/BIRO CREEK PROPERTY. No. DATE BY Description 8. CONTRACTOR SHALL BE RESPONSIBLE FOR THE REPAIR OF ANY ITEMS DAMAGED DURING THE CONSTRUCTION. BUILDING SCHEDULE 9. CONTRACTOR IS RESPONSIBLE FOR STAGING THE DEMOLITION OF EXISTING UTILITIES WITH INSTALLATION OF NEW.OWNER HW SA BE GIVEN SCHEDULE DRAWN BY CLG MAPLE WARNING PRIOR TO ANY DISCONTINUATION OE ANY SERVICE. TENNIS FACILITY' APPROVED BY FCP TOTAL SQUARE FOOTAGE:11.667 GSF(6,958 FIRST FLOOR,4,709 SECOND FLOOR) ACSA GENERAL WATER AND SEWER CONDITIONS BUILDING HEIGHT:31.-5' CHECKED SY OAK 1. WORK SHALL BE SUBJECT TO INSPECTION BY ALBEMARLE COUNTY SERVICE AUTHORITY INSPECTORS.THE CONTRACTOR WILL BE RESPONSIBLE LIGHTING FOR NOTIFYING THE PROPER SERVICE AUTHORITY OFFICIALS AT THE START OF WORK. TITLE 2. THE HEREOCATION SHOWNOF EXISTING UniTnEs AREE ONLY APPROXIMATELYOSS THE UNE OF THE PROPOSED CORRECT.THE CONTRACTORSHVWORK HISS OWN INITIATIVE LOCATE ALL NOT NECESSARILY SHOWN ON THE PIONSROUND AND LINES EACH OUTDOOR LUMINAIE ITH EQUIPPED W A LAMP THAT EMITS 3,000 OR MORE INITIAL LUMENS SHALL BE A FULL CUTOFF LUMINAIRE AND GENERAL NOTES AND STRUCTURES AS NECESSARY. SHALL BE ARRANGED OR SHIELDED TO REFLECT UGNT AWAY FROM ADJOINING RESIDENTIAL DISTRICTS AND AWAY FROM ADJACENT ROADS.THE SPILLOVER OF UGH TING FROM LUMINAIRES ONTO PUBLIC ROADS AND PROPERTY IN RESIDENTIAL OR RURAL AREAS ZONING DISTRICTS SHALL NOT 3. ALL MATERIALS SHALLID CONSTRUCTION COMPLY WITH THE CURRENT EDITION OF THE GENERAL WATER AND SEWERCONSTRUCTION EXCEED ONE-HALF FOOTGWOLE. . SPECIFICATIONS AS ADOPTED BY THE ALBEMARLE COUNTY SERVICE AUTHORITY. A 4. DATUM FOR ALL ELEVATIONS SHOWN IN NATIONAL GEODETIC SURVEY. 5. THE CONTRACTOR SHALL BE RESPONSIBLE FOR NOTIFYING'M155 UTILITY(1-800-552-7001) 6. ALL WATER AND SEWER PIPES SHALL HAVE A MINIMUM OF 3.5 FT.OF COVER MEASURED FROM THE TOP OF PIPE,OVER THE CENTERLINE OF PIPE.THIS INCLUDES ALL FIRE HYDRANT LINES,SERVICE LATERALS MID WATERLINES,ETC. OEI PROJECT NO:50100451 7. ALL WATER AND SEWER APPURTENANCES ARE TO BE LOCATED OUTSIDE OF ROADSIDE DITCHES. _ -- SHEET NO. 8. VALVES ON DEAD-END LINES SHALL BE NODDED TO PROVIDE ADEQUATE RESTRAINT FOR THE VALVE DURING A FUTURE EXTENSION OF THE UNE. /^- 9. TREES ARE NOT PERMITTED IN THE ACSA EASEMENT. l v-0.O 1 10. THE CONTACTOR SHALL BE RESPONSIBLE TO COMPLY WITH IR THE NO-LEAD REGULATOR REGARDING BRASS FNGS EFFECTIVE JANUARY 4, 2014(SENATE BILL 3874 WHICH AMENDS THE SAFE DRINKING WATER ACT). I -_.- - ' _. _-_- I - �_. v I _ _ __ „ - EROSION &SEDIMENT CONTROL NARRATIVE PROJECT DESCRIPTION EROSION &SEDIMENT CONTROL MAINTENANCE EROSION AND SEDIMENT MINIMUM STANDARDS (CONT.) Dewberry` THIS PROJECT INCLUDES PARKING LOT IMPROVEMENTS MID A TENNIS FACILITY ADDNION OF THE EXISTING BIRDWOOD GOLF COURSE.THIS INCLUDES UTILITY INFRASTRUCTURE,AND PARKING TO SEANCE THE EXISTING FACILITY.THE URUIY INFRASTRUCTURE INCLUDES THE INSTALLATION OF STORMWATER,AND ELECTRICAL UNES. IN GENERAL.THE PROJECT AREA SHALL BE CHECKED WITHIN 24 HOURS OF EACH RAINFALL EVENT OR WEEKLY IF ND RAINFALL EVENT HAS OCCURRED,WHICH 8. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, EVER 0 MORE FREQUENT TO ENSURE THAT ALL EROSION AND SEDIMENT CONTROL DEVICES ARE IN WORKING ORDER.EROSION CONTROL DEVICES SHALL BE FLUME OR SLOPE DRAIN STRUCTURE. THE PROJECT AREA IS APPROXIMATELY 9.75 ACRES AND WILL DISTURB APPROXIMATELY 9.75 ACRES.3.25 ACRES OF IMPERVIOUS AREA IS MAINTAINED ACCORDING TO THE FOLLOWING SCHEDULE: Dewberry EngineersW Inc. 41106 Laze Brook Drive.Suits zoo BONG ADDED. 1. CONSTRUCTION ENTRANCE 9. WHENEVER WATER SEEPS FROM A SLOPE FACE,ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED. Glen NH 23060 Phone:BOX 290 MR EX)SIING SITE CONDITIONS THE ENTRANCE SHALL BE MAINTAINED IN CONDITION WHICH WILL PREVENT TRACKING OR FLOW OF MUD ONTO PUBLIC RIGHT-OF-WAY.THIS MAY REQUIRE Fax:804.290.792e THE EXISTING SUE CONSISTS OF A PARKING LOT AREA AT THE EXISTING BIRDW000 GOLF COURSE FACILITY.THE EXISTING SITE ALSO CONSISTS PERIODIC TOP DRESSING WITH ADDITIONAL STONE OR THE WASHING AND REWORKING OF EXISTING STONE AS CONDITIONS DEMAND AND REPAIR AND/OR 10. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT SEDIMENT-LADEN WATER CANNOT ENTER wow.ea.erry.cam E OF TREES AND GRASSY AREAS. CLEANOUT OF ANY STRUCTURES USED TO TRAP SEDIMENT.ALL MATERIALS SPILLED,DROPPED,WASHED OR TRACKED FROM VEHICLES ONTO ROADWAYS OR THE CONVEYANCE SnI ell WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT. INTO STORM DRAINS MUST BE REMOVED IMMEDIATELY.THE USE OF WATER TRUCKS TO REMOVE MATERIALS DROPPED,WASHED OR TRACKED ONTO 7 SOILS ROADWAYS WILL NOT BE PERMITTED UNDER ANY CIRCUMSTANCES. 11. BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS OR PIPES ARE MADE OPERATIONAL,ADEQUATE OUTLET PROTECTION AND ANY L SEE THIS SHEET FOR SOILS MAP.CONTRACTOR SHALL BE RESPONSIBLE FOR TESTING.EROSION MID SEDIMENT CONTROL MAINTENANCE.AND REQUIRED TEMPORARY OR PERMANENT CHANNEL UNING SHALL BE INSTALLED IN BOTH THE CONVEYANCE CHANNEL AND RECEMNG CHANNEL. 0 I- STABILIZATION OF SOILS DURING CONSTRUCTION. 2. SILT FENCE A. SEDIMENT DEPOSITS SHALL BE REMOVED WHEN DEPOSITS REACH APPROXIMATELY ONE-HALF THE HEIGHT OF THE BARRER. 12. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED,PRECAUTIONS SHALL BE TAKEN TO MINIMIZE ENCROACHMENT,CONTROL SEDIMENT TRANSPORT AND O ADJACENT PROPERTY B. FABRIC SHALL BE REPLACED IF R HAS DECOMPOSED OR BECOME INEFFECTIVE STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE DURING CONSTRUCTION.NONERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION Q J Cl) ADJACENT COSTINGROPERT IYS SOUTHEASTSOD OF UNNI ERSRY OF ERWICK ROAD,RGI OF NIA FOUNDATION.DRIVE,MID WEST OF GOLF CLUBHOUSE WORK WILL BE DONE ON 3. LNG OF CAUSEWAYS AND COFFERDAMS.EARTHEN ALL MAY BE USED FOR THESE I- THE SEEDED AREAS SHALL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS Z� 0 Z ALLOFFSITE L O SITE CES ACTMTIES NEED TO BE ADDRESSED BY THE VSMP PERMIT HOLDER AND APPROPRIATE INFORMATION CONTAINED IN THE SWPPP. NEEDED. 13. STREAM CROSSING WHEN A LIVE CCOONSTRUCTD OFURSE MUST ENONERODIBLE MATERIAL CROSSED BY U SHALL BECTION I PROVIDED. CLES E TWICE THAN IN ANY SIX-MONTH PERIOD,A TEMPORARY VEHICULAR Z �J,J CONTRACTOR SHALL ONLY PERFORM OFFSITE ACTMTIES THAT ARE COVERED UNDER THE PERMIT HOLDER FOR THIS PROJECT OR COVERED 4. STORM DRAW INIFT PROTECTION D Y 2 UNDER THE PERMIT OF ANOTHER PROJECT. SEDIMENT DEPOSITS SHALL BE REMOVED WHEN DEPOSITS REACH APPROXIMATELY ONE-HALF THE DESIGN DEPTH OF THE TRAP. 14. ALL APPLICABLE FEDERAL STATE AND LOCAL REGULATIONS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET. 0 C STORMWATER RUNOFF CONSIDERATIONS 5. TREE PRESERVATION AND PROTECTION LL < 0 - THIS PROJECT WILL INCREASE IMPETNOUS AREA AND STORMWATER RUNOFF.STORMWATER CALCULATIONS CAN BE FOUND IN THE STORMWATER EROSION AND SEDIMENT CONTROLS SHALLBE INSTALLEDOR MAINTAINEDIN A MANNER WHICH DOES NOT RESULT IN SOIL BUILDUP WITHIN TREE DRIP 15. THE BED MID BANKS OF A WATERCOURSE SHALLBE STANUZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED. __ Z O a 2 PLANS,SHEETS C6.01-C6.10. UNE AREAS.HEAVY EQUIPMENT,VEHICULAR TRAFFIC,OR STOCKPILES OF ANY CONSTRUCTION MATERIALS(INCLUDING TOP SOIL)SHALL NOT BE PERMITTED Q CL Q (5 - WITHIN THE DRIP LINE OF ANY TREE TO BE RETAINED. IN. UNDERGROUND UTILITY ONES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDMON TO OTHER APPLICABLE CRITERIA OcS CRITICAL AREAS A.L NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME. Z �� 'AAA Z 5 ADEQUATHERE TE PRECAUTIONS SHALL BE TAKEN TO M NO CRIECAL AREAS ORME.THE INIMIZE EROSION AND OTOOCONAIN SILT THROUGH TO MINIMIZE LAND H PROP RE EROSION A.WHERE ND ISEDIMENT NG IS CCONTROL 6 DUST PLANNING ANDMAINTENANCE FOR DUST CONTROL UMOING THE AMOUNT OF SOIL DISTURBANCE AT ANY ONE THE SHOULD BE A KEY OBJECTIVE. B. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES. - Z vJ 0 L_ PRACTICES. TEMPORARY STARILIUTION MEASURES SHALL BE CHECKED REGULARLY AND RE-APPLIED AS NECESSARY TO REDUCE DUST EMISSIONS. C. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE PETERED OR PASSED THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE,OR BOTH,AND (Dn., y DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING STREAMS OR OFF-SITE PROPERTY. LL Z< 0~ ILl THE INTENT OF THIS EROSION AND SEDIMENT CONTROL PUN IS TO GUIDE THE CONTRACTOR IN IMPLEMENTING ACCEPTABLE MEASURES, 5. DIVERSION DIKF D. MATERIAL USED FOR BACKFIWNG TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE STABIUZATION. INFRASTRUCTURE,AND MAINTENANCE PROGRAMS THAT WILL MINIMIZE THE AMOUNT OF EROSION AND RESULTING SEDIMENT THAT WILL TAKE THE MEASURE SHALL BE INSPECTED AFTER EVERY STORM AND REPAIRS MADE TO THE DIKE,FLOW CHANNEL OUTLET OR SEDIMENT TRAPPING FACILITY AS 5 , O PUCE DURING THE CONSTRUCTION OF THIS PROJECT.ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE NECESSARY.ONCE EVERY TWO WEEKS,WI-ETHER A STORM EVENT HAS OCCURRED OR NOT,THE DIVERSION DIKE SHALL BE INSPECTED AND REPAIRS E. RESTABIUZADON SHALL BE ACCOMPUSHED IN ACCORDANCE WITH THESE REGULATIONS. >/ .. HANDBOOK CONSTRUCTED AND MAINTAINED ACCORDING TO THE MINIMUM STANDARDS AND SPECIFICATIONS OF THE VA EROSION&SEDIMENT C.ONTROl MADE IF NEEDED.DAMAGES CAUSED BY CONSTRUCTION TRAFFIC OR OTHER ACTIVITY MUST BE REPAIRED BEFORE THE END OF EACH WORKING DAY. F. APPLICABLE SAFETY REGULATIONS SHALL BE COMPLIED WITH. � i_u U 6. SEDIMENT BASIN 17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBUC ROADS,PROVISIONS SHA BE MADE TO MINIMIZE THE TRANSPORT OF 0 U Z EROSION AND SEDIMENT CONTROL MEASURES EMERGENCY SPILLWAY SHOULD BE CHECKED REGULARLY TO ENSURE THAT ITS LINING S WELL ESTABLISHED AND EROSION-RESISTANT.WHEN THE SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED SURFACE.WHERE SEDIMENT IS TRANSPORTED ONTO A PAVED OR PUBUC ROAD SURFACE,THE ROAD SEDIMENT REACHES THE CLEAN-OUT LEVEL,IT SHALL BE REMOVED AND PROPERLY DISPOSED OF. SURFACE SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY.SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING D STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES0 9. SOIL START'RATION RIANKFTS AND MATTING AND TRANSPORTED SHALL TO A P SEDIMENT CONTROL DISPOSALPAREA.STRAETELL AS SHALL BE ALLOWED B AFTER SEDIMENT IS REMOVED IN THIS MANNER. u- 0 CONSTRUCTION ENTRANCE(VESCH STD.&SPEC.3.02): ALL SOIL STARIUZATION BLANKETS AND MATTING SHOULD BE INSPECTED PERIODICALLY FOLLOWING INSTALLATION,PARTICULARLY AFTER RAINSTORMS TO THIS PROVISION APPLY TO INDMDUAL DEVELOPMENT LOTS AS WELL AS TO LARGER LAND-DISTURBING ACTIVITIES. l^ '^ STABILIZED STONE PAD WITH A FILTER FABRIC UNDERUNER LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS. CHECK FOR EROSION AND UNDERMINING.IF WASHOUTS OR BREAKAGE OCCURS RE-INSTALL THE MATERIAL AFTER REPAIRING nal u E TO THE SLOPE OR IB. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 14 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE (1)- v_J O CONSTRUCTION ENTRANCES REDUCE THE AMOUNT OF MUD TRANSPORT ONTO PAVED PUBUC ROADS BY VEHICLES OR RUNOFF. DITCH. CrL CONSTRUCTION ENTRANCES SHALL BE GUTTED TO THOSE SHOWN ON THE PLANS OR OTHERWISE APPROVED BY THE SOIL EROSION TEMPORARY MEASURES ARE NO LONGER NEEDED,UNLESS OTHERWISE AUTHORIZED BY THE REGULATORY AUTHORITY.TRAPPED SEDIMENT AND THE L\.L.I Z CIL OFFICER.SUPPLEMENTAL DRAWINGS SHALL BE PROVIDED BY THE CONTRACTOR FOR APPROVAL IF ADDITIONAL ENTRANCES ARE THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING AN EMPLOYEE WHO WILL BE RESPONSIBLE OF THE EROSION AND SEDIMENT CONTROL PLAN DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURRIER EROSION / Z '- REQUIRED. AND REQUIREMENTS FOR THE PROJECT THAT IS CERTIFIED BY THE VIRGINIA DEPARTMENT OF CONSERVATION OR THE VIRGINIA DEPARTMENT OF AND SEDIMENTATION. W ENVIRONMENTAL QUALITY AND RECREATION AS A RESPONSIBLE LAND DISTURBER(RED).THE NAME OF THE CONTRACTOR'S RED AND COPY OF HIS SILT FENCE(VESCH STD.&SPEC.3.05): CURRENT CERTIFICATION SHALL BE PROVIDED TO THE OWNER,ENGINEER AND EROSION&SEDIMENT CONTROL PLAN APPROVING AUTHORITY PRIOR TO 19. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE PROTECTED FROM SEDIMENT DEPOSNON,EROSION AND DAMAGE DUE TO Z H A TEMPORARY SEDIMENT BARRIER CONSISTING OF A ALTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPORTING POSTS AND ISSUANCE TO THE NOTICE TO PROCEED FOR THE PROJECT. INCREASES IN VOLUME,VELOCITY AND PEAK FLOW RATE OF STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM OF 24-HOUR DURATION IN ENTRENCHED. SILT FENCE IS INSTALLED TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS ACCORDANCE WITH THE STANDARDS AND CRITERIA FOUND IN VESC REGULATION 94VAC25-840-40 MS-19 PARTS A-N FOUND AT WEBPAGE DURING CONSTRUCTION IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE AND TO DECREASE THE VELOCITY OF SHEET HOP://LIS.NRGNIA.GOV/CGI-BIN/LEGP604.EXE?DOSHREG+9VAC25-840-40 `,TAN Or FLOWS AND LOW-TO-MODERATE CHANNEL FLOWS. SEAL AA,, 1."1,,A_ w' • - STORM DRAIN INLET PROTECTION(VESCH STD.&SPEC.3.07): EROSION AND SEDIMENT CONTROL SEQUENCE / A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET. STORM DRAIN INLET PROTECTION DISTURBED AREA FOREVEN USE WHERE STORM FROM ENTERINGSTTORM LETS E TO BE MADEE OPERATIONAL BEFORE PMS PRIOR TO ERMANENTENT ASTABILIZATION OFILIZATION OF E GENERAL EROSION &SEDIMENT CONTROL NOTES 1. CONTRACTOR TO INSTALL EROSION AND SEDIMENT PHASE I CONTROLS. .ALA CAMERON�5: THE CORRESPONDING DISTURBED DRAINAGE AREA. DIFFERENT TYPES OF STRUCTURES ARE APPUCABLE TO DIFFERENT CONDITIONS. ES-1: UNLESS OTHERWISE INDICATED,ALL VEGETATIVE VINO STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND 2. CONTRACTOR TO COMPLETE DEMOLITION. PALMO2E MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND THE 3. CONTRACTOR TO COMPLETE SITE IMPROVEMENTS. • Lic.No.0 020 5275 , TEMPORARY DIVERSION DIKE(VESCH STD.&SPEC.3.09): VIRGINIA EROSION AND SEDIMENT CONTROL REGULATIONS(9VAC25-840). 4. CONTRACTOR TO REMOVE APPROPRIATE TEMPORARY EROSION AND SEDIMENT PHASE I CONTROLS. �k0 Ew= A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA.A TEMPORARY 5. CONTRACTOR TO INSTALL EROSION AND SEDIMENT PHASE II CONTROLS. DIVERSION DIKE DIVERTS STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPROTECTED DISTURBED AREAS AND ES-2: THE PLAN-APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE-CONSTRUCTION CONFERENCE,ONE WEEK PRIOR TO THE 6. CONTRACTOR TO STABIUZE SITE. w.9 fs, 'C,.,e. SLOPE TO A STABILIZED OUTLET.THIS STRUCTURE ALSO DIVERTS SEDIMENT-LADEN RUNOFF FROM A DISTURBED AREA TO A COMMENCEMENT OF LAND DISTURBING ACTIVITY,AND ONE WEEK PRIOR TO THE FINAL INSPECTION.THE NAME OF THE RESPONSIBLE LAND DISTURBER 7. CONTRACTOR TO REMOVE ALL TEMPORARY EROSION AND SEDIMENT CONTROLS. wAAAAAAMINIH N IA HAR SDMENT TRAPPING FACILITY SUCH AS A SEDIMENT TRAP OR SEDIMENT BASIN. MUST BE PROVIDED TO THE PLAN-APPROVING AUTHORITY PRIOR TO ACTUAL ENGAGEMENT IN THE LAND-DISTURBING ACTMTY SHOWN ON THE APPROVED PLAN.IF THE NAME IS NOT PROVIDED PRIOR TO ENGAGING IN THE LAND-DISTURBING ACTMTY,THE PLAN'S APPROVAL WILL BE REVOKED. KEY PLAN TEMPORARY SEDIMENTARYBASIN(VESCH STD.&SPEC.3.14)CONTROLLED ES-3: A EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. A TEMPORARY BARRIER OR DAMS WITH A CONTROLLED STORMWATER SF STRUCTURE FORMED BY CONSTRUCTING AN BMP INSTALLATION AND AS-BUILT NOTES C EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY.TEMPORARY SEDIMENT BASINS ARE INSTALLED TO DETAIN ES-4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. SEDIMENT-LADEN RUNOFF FROM DISTURBED AREAS IN WET AND DRY STORAGE LONG ENOUGH FOR THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. ES-5: PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS(INCLUDING,BUT NOT UNITED TO,OFF-SITE 1. CONTRACTOR TO PROVIDE DETAILED INFORMATION ON ANY INSTALLED STORMWATER BMP.THIS INFORMATION SHALL INCLUDE A TOPOGRAPHIC BORROW OR WASTE AREAS),THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND SURVEY OF THE INSTALLATION,GPS COORDINATES FOR EACH FACILITY,PHOTOGRAPHS OF THE PROGRESS THROUGHOUT CONSTRUCTION OUTLET PROTECTION(VESCH STD.&SPEC.3.18): APPROVAL BY THE PLAN-APPROVING AUTHORITY. INCLUDING EACH MILESTONE,CONSTRUCTION LOGS,GEOTECHNICAL TESTING REPORTS,AND SOIL REPORT CERTIFICATIONS.THIS INFORMATION STRUCTURALLY UNED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPATION DEVICES PLACED AT THE OUTLETS OF PIPES OR PAVED TO BE TURNED OVER TO THE OWNER AS A SUBMITTAL FOLLOWING CONSTRUCTION OF THE PROJECT. CHANNEL SECTIONS.OUTLET PROTECTION PREVENTS SCOUR AT STORMWATER OUTLETS,PROTECTS THE OUTSET STRUCTURE,AND ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND MINIMIZES THE POTENML FOR DOWNSTREAM EROSION BY REDUCING THE VELOCITY AND ENERGY OF CONCENTRATED FLOWS THIS IS SEDIMENTATION AS DETERMINED BY THE PLAN-APPROVING AUTHORITY. 2. THE ENGINEER SHALL BE NOTIFIED OF ANY DEVIATIONS FROM THE PLANS IMMEDIATELY.IF A DEVIATION IS REQUIRED,CONTRACTOR AND APPLICABLE TO THE OUTLETS OF AL PIPES AND ENGINEERED CHANNEL SECTIONS. ENGINEER SHALL COORDINATE A SOLUTION THAT IS ACCEPTABLE WITHIN THE DEQ REGULATIONS. ES-7: ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL ONES DURING LAND DISTURBING ACTIVITIES AND DURING TEMPORARY SEEDING(VESCH STD.&SPEC.3.31): SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED.AFTER WHICH,UPON APPROVAL OF THE PLAN-APPROVING AUTHORITY.THE CONTROLS SCALE THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING SHALL BE REMOVED.TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE REMOVAL OF TEMPORARY MEASURES SHALL BE ANNUAL PLANTS.TEMPORARY SEEDING REDUCES EROSION AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT PERMANENTLY STARIUZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. SOILS MAP BE BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN 14 DAYS.TEMPORARY SEEDING REDUCES DAMAGE FROM SEDIMENT AND RUNOFF TO DOWNSTREAM OR OFF-SITE AREAS,AND TO PROVIDE PROTECTION TO BARE SOILS EXPOSED DURING ES-B: DURING DEWATERING OPERATIONS,WATER SHALL BE PUMPED INTO AN APPROVED FILTERING DEVICE. CONSTRUCTION UNTIL PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED.FOR USE WHERE SCALE: 1.= 150' - EXPOSED SOIL SURFACES ARE NOT TO BE FINE-GRADED FOR PERIODS OF LONGER THAN 14 DAYS.SUCH AREAS INCLUDED ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES AT LEAST AFTER EACH RUNOFF-PRODUCING RAINFALL EVENT OR WEEKLY.ANY _ - NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. ' e O DENUDED AREAS,SOIL STOCKPILES,DIKES,DAMS,SIDES OF SEDIMENT BASINS,TEMPORARY ROAOBANKS,ETC.(SEE MSFI AND MS/2).A PERMANENT VEGETATIVE COVER SHALLBE APPLIED TO AREAS THAT WILL BE LEFT DORMANT FOR A PERIOD OF MORE ES-10: THE CONTRACTOR IS RESPONSIBLE FOR THE DAILY REMOVAL OF SEDIMENT THAT HAS BEEN TRANSPORTED ONTO A PAVED OR PUBUC ROAD SURFACE. 't ` -�a\L I) 59 THAN ONE(1)YEAR. 1 A ES-1 T: SEEDING OPERATIONS SHALLBE INITIATED WITHIN 7 DAYS AFTER REACHING FINAL GRADE OR UPON SUSPENSION OF GRADING OPERATIONS FOR { y \ PERMANENT SEEDING(VESCH STD Sr SPEC.3.32) ANTICIPATED DURATION OF GREATER THAN 14 DAYS OR UPON COMPLETION OF GRADING OPERATIONS FOR A SPECIFIC AREA. /I - }. K.e/' ,/) 19`^ qn»�. THE CES EROSION D A PERENNIAL SEDIMENTVEMETIYI COVER ON DISTURBED AREAS BY MANE PLANTING SEED.IPERMANENT DISTURBEDSEEDIBG ES-I2: THE CONTRACTOR SHALL BE RESPONSIBLE FOR PREVENTING SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOILS WHICH MAY PRESENT i :A'^-.ti REVISIONS __ REDUCES EROSION AND DECREASES PIED FROM DISTURBED AREAS. PERMANENT SEEDING STABILIZES AREAS _ HEALTH HAZARDS,TRAFFIC SAFETY PROBLEMS,OR HARM ANIMAL OR PUN LIFE. IN A MANNER THAT IS ECONOMICAL,ADAPTABLE TO SITE CONDITIONS,AND ROWS SELECTION OF THE MOST APPROPRIATE RAT L. X L \ , , IAIERML PERMANENT SEEDING ALSO IMPROVES WILDLIFE HABITAT AND ENHANCES NATURAL BEAUTY.FOR USE IN DISTURBED AREAS ES-13: A VIRGINIA STORMWATER MANAGEMENT PROGRAM PERMIT(VSMPP)FOR THE DISCHARGE OF STORMWATER FROM CONSTRUCTION ACTIVITIES IS REQUIRED W N( � • I! WHERE PERMANENT,LONG-LIVED VEGETATIVE COVER IS NEEDED TO STABILIZE THE SOIL FOR USE WHERE ROUGH-GRADED AREAS FOR PROJECTS DISTURBING 1 ACRE OR GREATER.VISIT THE VIRGINAL STORMWATER MANAGEMENT PROGRAM PERMITTING WEB PAGE AT WHICH WILL NOT BE BROUGHT TO FINAL GRADE FOR A YEAR OR MORE. HTTP://WWW.DRISTATEVAUS/PROGRAMS/WATERLSTORMWATERMAAGEMEN/VSMPPERMHS/CONSTRUCTONOENERAIPERMITASPX FOR MORE INFORMATION. if 3 ZOD3 MULCHING(VESCH STD &SPEC.3.35): S " I� B APPLICATION OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL SURFACE.MULCHING PREVENTS EROSION BY AND SEDIMENT MINIMUM STANDARDS ,- }. EROSIONF1 4 4 O6/20/19 AGO REVISION 4 PROTECTING THE SOIL SURFACE FROM RAINDROP IMPACT AND REDUCING THE VELOCITY OF OVERLAND FLOW.MULCHING FOSTERS 19B \ THE GROWTH OF VEGETATION BY INCREASING AVAILABLE MOISTURE AND PROVIDING INSULATION AGAINST EXTREME HEAT AND COLD. -- � - \� 3 05/10/19 ACO REVISION 3 FOR USE IN AREAS WHICH HAVE BEEN PERMANENTLY SEEDED.MULCHING SHOULD OCCUR IMMEDIATELY FOLLOWING SEEDING.AREAS 1. PERMANENT OR TEMPORARY SOIL STABIUZADON SHALL BE APPUED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY , THAT CANNOT BE SEEDED BECAUSE OF THE SEASON SHOULD BE MULCHED WITH AN ORGANIC MULCH. PORTION OF THE SITE.TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL 'A: ALAS \ 2 02/27/19 AGO REVISION 2 TREE PR6EMAITON&PROTECTION(VESCH STD.&SPEC.3.38): GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN 14 DAYS.PERMANENT STARXJZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT 5A -� ; .\� „ 1 01/03/19 ADO 100S DOCUMENTS DORMANT FOR MORE THAN ONE YEAR.SPECIFIC FERTIUZER,NUTRIENT,Al SEED APPUCATION MUST MEET EROSION AND SEDIMENT CONTROL(ESC) I mac-PROTECTION OF OF DESIRABLE TREES FROM MECHANICAL AND OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION ACTMTY. ''<. TECHNICAL BULLETIN NO 4 NUTRIENT MANAGEMENT FOR DEVELOPMENT PROJECTS. DOWNLOAD AT �_ / �� ti? i. 07/23/18 ,NC 100X DOCUMENTS TREE PRESERVATION AND PROTECTION IS USED TO ENSURE THE SURVIVAL OF THE DESIRABLE TREES WHERE THEY WILL BE ht ://www.de.vir inia.av Pro rams/Water StonnwaterMana ement Pu6licaUans.as xl. MULCHING REQUIREMENTS MUST MEET VESC HANDBOOK No. DATE BY Description EFFECTIVE FOR EROSION AND SEDIMENT CONTROL WATERSHED PROTECTION,LANDSCAPE BEAUTIFICATION,DUST AND POLLUTION R 9 9 / 9 / 9 / PII 1 W P i MULCHING TABLE 335A CONTROL,NOISE REDUCTION,SHADE AND OTHER ENVIRONMENTAL BENEFITS WHILE THE LAND IS BONG CONVERTED FROM FOREST "\J �R TO URBAN-TYPE USES.FOR USE IN TREE-INHABITED AREAS SUBJECT TO LAND DISTURBING ACTIVITIES. I, \ � 2. DURING CONSTRUCTION OF THE PROTECT,SOIL STOCKPILES AND BORROW AREAS SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING j ` - y'; DUST CONTROL(VESCH STD.Al SPEC.3.39) MEASURES.THE APPLICANT IS RESPONSIBLE FOR THE TEMPORARY PROTECTION AND PERMANENT STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS hDRAWN BY CLG APPLICATION OF TEMPORARY SEEDING(VESCH&SPEC.3.31) MULCHING(VESCH STD.&SPEC.3.35),IRRIGATION,SPRAY-ON WELL AS BORROW AREAS AND SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE.ANY BORROW,FILL,OR WASTE SUCH AS DEMOLITION MATERIAL A' , [ Ji,lA '/ - ADHESNES OR BARRIERS TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE MUST BE PROVIDED FROM OR HAULED TO A PERMITTED,APPROVED.SUPPLY OR WASTE AREA.ALL OFFSITE ACTMTY IS NOT PART OF THIS PERMIT/PLAN (// :( APPROVED BY FCP fr - PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS,TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR SET AND IS ADDRESSED UNDER SEPARATE COVER.SOIL STOCKPILES ARE NOT ANTICIPATED ONSTE. I /:-/,''.11/>:::;t7:.,....A.;:,.3.:'1,‘,''''''..'''c',1...,,!,\V t A �,PUN LIFE DURING LAND DISTURBING,DEMOLITION AND CONSTRUCTION ACTMTIES. - A�;I' \ �" A `^kCHECKED BV DARK3 NOTEBEACONSIDERED ESTABLISHED UNTIL AA GROENT VEGETATIVE COVER SHALL BE UNOSHED COVER HIS ACHIIEVED I DENUDED AREAS SOT OTHERVITSE UNIFORMM,MAT REMENOUGH TOY ASURVNE AND WIIUZED. LL INHIBIT EROSION VEGETATION L gy m``\ A \A\.. I� / A"f �Y�,,SOIL STABILIZATION BLANKETS AND MATTING(VESCH SN.&SPED 3.36) d:k: ,,� 7TTLERUED TION OF TEMPORARY SEEDING(VESCH&SPEC.3.36)IS TO AID THE CRITICAL AREAS BY PROVIDING A PLASTIC NETTING . J�FILLED WITH SOIL PRIOR TO PLANTING.PROMOTING ROOT GROWTH AND ALLYWS FOR ENHANCED ENERGY 0651PATION. A`` I��/,j,,�� � �0'p"'! EROSION & 4. SEDIMENT BASINS AND TRAPS,PERIMETER DIKES,SEDIMENT BARRIERS AND OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRICTED AS OMPPORA FOR LONGER SHALL BE DAYS AND WITHIN LESS THEN ONE TTO DENUDED INCLUDES. TT MAY NOOTBE LIMITED AT TO,FINAL STOCKPILESORADE.BUT AND WILL BORROW AREAS.TEMPORARY AND PERMANENT STABILIZATION A FIRST STEP IN ANY LAND-DISTURBING ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBARCE TAKES PLACE. ,g , ,''' '''.7''';', t",II�,",I 5. STABUZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS,DIKES MID DIVERSIONS IMMEDIATELY AFTER INSTALLATION. 4j�., 1 J(1 � ,,I.+, j SEDIMENT CONTROL PERMANENT SEEDING SHALL BE APPLIED AND A PERENNIAL VEGETATIVE COVERING SHALL BE ESTABLISHED ON DISTURBED AREAS WITHIN SEVEN A j{ DAYS OF BEING BROUGHT TO FINAL GRADE ON AREAS NOT OTHERWISE PROTECTED.SELECTION OF THE SEED MIXTURE SHALL DEPEND ON THE 6. SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DESIGNED VINO CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY THE TRAP \l; A �Y- •',. I/ 4% = NOTES TIME OF YEAR IT IS TO BE ARPUD. OR BASIN. \ 1', Lr A MULCHING SHALL BE APPLIED TO ALL PERMANENT SEEDING IMMEDIATELY UPON COMPLETION OF SEED APPLICATION.MULCH LIBERALLY DURING A. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA AND ME TRAP SHALL ONLY w THE MID-SUMMER AND WINTER SEASONS. CONTROL DRAINAGE AREAS LESS THAN THREE ACRES. B. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED OF FLOW FROM DRAINAGE AREAS GREATER THAN OR EQUAL TO THREE ACRES SHALL MAP UNIT SLOPES CAPACITY OF THE MOST UMITING LANOUPABIUTY HYDRO OGICAL SEE VIRGINIA EROSION AND SEDIMENT CONTROL TECHNICAL BULLETIN NO.4,NUTRIENT MANAGEMENT FOR DEVELOPMENT SITES FOR UPDATED BE CONTROLLED BY A SEDIMENT BASIN.THE MINIMUM STORAGE CAPACITY OF A SEDIMENT BASIN SHALL BE 134 CUBIC YARDS PER ACRE OF SYMBOL_MAP UNIT NAME IPERCENTI, NATURAL DRAINAGE CLASS LAYER TO TRANSMIT WATERIKsat)ANON-IRRIGATEDI_SOIL ROUP_ DRAINAGE AREA THE OUTFALL SYSILM SHALL AT A MINIMUM,MAINTAIN THE STRUCTURAL INTEGRITY OF THE BASIN DURING A 25-YEAR STORM OF HIGH 6E DEI PROJECT NO:50100451 SEED MIXTURES AND ANHEDOKES AS WELL AS.3.35ED RM UL MULCHING,SPE,AND FERTILIZING REQUIREMENTS.SEE VIRGINIA EROSION AND 4D ASHE LOAM ]ST025 SOMEWHAT EXCESSIVELY DRAINED SEDIMENT CONTROL HANDBOOK SRO.AND SPEC.3.35 FOR MULCHING SPECIFICATIONS. 24-HOUR DURATION.RUNOFF COEFFICIENTS USED IN RUNOFF CALCULATIONS SHALL CORRESPOND TO A BARE EARTH CONDITION OR NOSE HIGH 3E CONDITIONS EXPECTED TO EXIST WHILE THE SEDIMENT BASIN IS UTILIZED. CULLEN LOAM 2t77 to WELL DRAINED STORMWATFR RUNOFF CONSIOFRAyKs ]SB CULLEN Loam 1ta WELL DRAINED HIGH RE SHEET NO. THIS PROJECT WILL INCREASE IMPERVIOUS AREA AND STORMWATER RUNOFF.STORMWATER CALCULATIONS CAN BE FOUND 7. CUT AND FILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION.SLOPES THAT ARE FOUND TO BE ERODING 20D3 CULIENCIAY LOAM 15TO25 WELL DRAINED MODERATLEY HIGH 6E IN THE STORMWATER PLAN SHEETS. EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED WITH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS 5B BELVOIRLAOM 2to7 SOMEWHAT POORLY DRAINED HIGH 3W P CORRECTED. W WATER CO■02 PROJECT THAN 1 ACRE.THEREFORE,THE CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING A VIRGINIA STORMWATER MANAGEMENT PROGRAM(VAMP)PERMIT A1)MAINTAINING A STORMWATER POLLUTION PREVENTION PLAN(SWPPP). ME PROJECT IS MORE THAN 10,000 SF AND WILL REQUIRE EROSION AND SEDIMENT RENEW APPROVAL 1 I L I � � I "• , J 7 *) , •• /� 9 Dewberry /�� / ,/ ` \ �:/ / IP Dewberry Engineers Inc. / • / �Z �\ \ 'ATCH LINE: SHEET �3 "a Glen ANn,VA mm i� / /y \y/' // ' �// / \ \ \ 1 \� \ . /J , �: l i '\ ' E /..1!' / 'Y / '1 v ,55�/ \ v ' '''N A vA _ //J / 1 <CC/ v �b ;./�� ' / \ r \ A V A A ass / �/ Y / � fir �(�i J v \ \ V A AV / v� �/ /i 0 � MW2THUR SQUASH CENTER / / V // > \ \ \ A .�/ /i __-- A / // Q Q °. /. \ / \ % / �// r \ \ \ \ , ' / '� \ _— �i'i \ \\ \ \_// / / 0 Q Z o OZ i \N ,N / / \ /`! / �/ \ O \ / / / i _ i \r -�> —\ 1 / J 0 U w z /-- D A,\:-'-N / , ' )/ Ab..'w, i/ 4\ S \''.<1: • / 1 .------ / ( / Y ..---- 1 I / / , �j �% '� r �t / 7 / /'( JN ( 1 // )2— -- -- �%" a - -} / / / — ? w xpA/7 ,kZ I- (j l \ \ ;� \ v _\_ A ( /�/ //� 1 ` < v '- SEAL .•••��., �� \ 1 C04%/0 \ % ( :4 , - n(ViF/ 7.67 E\ \ \ \ \.._\. \ -- _ \\ _ / — _ j j/ / \ \` \ \ \\ -------- ' ,,Lie.No. 20 5275A. 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TREES / 07/23/18 JRC IOC%DOCUMENTS \ \ / \ ` \ \__ — _ /_-1/, i / / ' -'� \ / \ No. DATE BY Desc,ryGon DRAWN BY CLG 1`\ ` r � / ,/J•\.-- _\ ` 1J> / '// // / % ' _i / / `__-- APPROVED BY FCP �, \\\\\ _'/ /�,tp`{66" (PLA siff OF • \\ • 1�=•--•• \� •'_�\ O_ \© \ \ `` /, //'�/// // / _ \ / - ty/ , CHECKED BY OMK -_ 4.s. i' 1455',P�80.85 T}� \ \ S \ \" TP •` ` \ `._,— ,� __/„. / \�\ �'��•�\\ \ / / D.B.2'r12,� .715(�t\ \ \ \ \ \ \ / __`` - O \ N. 1 / / / / I TITLE 4••4 \ DA 1055.P4'�271 \ \ \ \ . \ \ -— o i� • \ / / / O / / �, os� .3 - _ • - EROSION & lcoaAk, >�e 453. ▪5 I A V\ . .ro N. \ \/v \ A / �� r — / / A V. O y':. d•d GOLF.r \ - \ 548�sAT ' : - C2.14 ,_rr —— / ��\ �\ SEDIMENT CONTROL I A ��\ \ v \ \ \ \ \\ \\\ �\ ` \� r / \ 5` DENSE TREEsi/ \ . 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IN=529.1' ''�--�~^✓ / ` \ \ �\ r —' ,.an -7 =554. 1 / / / / `p` TITLE UTLET NOT FOUND / n \ \ v \ _ ' ' /j j ' '1 �' v c / f • g�1\ \\�\\ \� �• , 5� � / / INv I � �/j/ / / � '� � / � EROSION & / \; J// \\ \ \�1 I �' /\ v u �/ //,/ / ' \ ( % SEDIMENT CONTROL // /' • / \\\ \/ \ ' \ \\1\� 1 ' vac /// _ •\ • /•jREEs f////�/i/ �l \\ ` PHASE I PLAN 10 ./J ( 1 UNNERSfIY OF VIRC,I NOA r. / ` // \��� I /��� DVE SITY t .n 5T7(DA / / / //////////// / ~�'� �i� / IV� 1^6�j / .jam�I � � \\\ D.B.29i$1�.80.85{VUT� i / / / J //// / // /�� DEI PROJECT NO:50700467 • r I "2712, .325 / • / / \ D.B 1055•PC.271 / / / /// if 11 f , i SHEET NO. ///.# /////j/ / D.8.759,P&372�f / / / / // / ) / / / i 'DB.453,PG 85 GOLF..( , ! / + , �, // /, _ 5S4Dt R R3 / /� I ,1, 0 2. 12 / t C?>tOv S1L141TCA1AMf`1- / / �� ,//// // �/ / n` �' \ _ -< '// // / .//// ��/�/ / \�\\�. ,./ � /// CONC \ 1 I // I L J Y J \ / ` 1 / / / A ` 1 / /� `� \ \ !/ 51� pI ! 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( ice' `_� ////// / r\ \ \ � _\ '_-\ • SF N\ \\\ \ \\\ \' Da PROJECT NO:SOt00051 \ l \ / )� \ -'C" / !x.6.S.k '' Eft l*\ & \ \\ \ \\ \ � 1 1 \ \\ •\\ _�/ / \ \ -� / / / / < '` \ /:• SAN : ER ESM'TS` ` • \ \ \ St EET NO. 7 1 / �� _I_ S '''� _`,-- , / t \"4. 1 /� nrT`, i \ / MATCH LI 4 SHEET C2.12 r L J )(-----\ \ / .% / \\ \\\;;„\\ MATCH MATCH LINE: SHEET C2.11— t.'.- _,.\ '. `\ �\ // 0 _ _ 7i/' Dewberry D �M.v q\\ ° f ' \ •� \ — \ --- -- ,( \ \.. ... �/ - 54linUr— PIIIIIII______il �� _ Dewberry Engineers Inc. 1� N \ Nal \', \ \ \ \ \ /• , . _ -- " .B05�a avow oma,s,e po 1 E \ `_y,• /., \.,\\ \ , \\\\\` •=\•\ \ -'\\ \\ \\ w�J \ \ \ a// _- _13,87_539 jvisio�� ` -/` -r/ aw,s=rrY cw \\\��\ 0 \ \\ \�.�.\\ \' • ;"J \ ,\\.�\\ \ \\ / \\ \\ \ �QF -- `kA Vi: +1,— •�/ Z \\\\ \ \\ \ '•�� \\ \ . \\ \ �'.\ (\ LIMITS OF \ \ \ }Pil\ � \ / J / O I- 1 \ \ 17.5�LX70.5'wxa�'0 RIPRAP \ \\ \��\ \ XDISTURBANCE(3YA•) \ I r�2 \ t / Tp O ,A \\� LICHY BROWN IN C040R .� \%• _ \ ( Q - 1 WITH ROUNDED ED�.ES FROM \ \ \ \ \'" + \ \ \ \ \\ // /J�( / 1 \SHENANDOAN ASPHALT\ \ \ \ \�\\ \_ • �� C \ �•` 1 \ \ ((f.V0.-- \\ / �I / L/ Z .v.____..,........ i‘ 0 0 :\\1 \\)CI \ (9:11:tilk 71Ir‘,//‘ 4,. 89 C \\ '' • \ \ V \ �l \\ \ \ \ \\ \ \ \ \ /� ,� • SEDIMEHf BASIN ; 1 I 1 l /i D NOL.p 7__:" ,: t; ., _ O 0 O }\}\\' ,\ \I\\ \ \\ \ 1 �\ \ �\\ \ \ \ \ \ \ \ ` \ l '� ` . �'i/! h"�y���, �9 ���/�€s/�'� > ,_ < 0 p Ii V \ V i \ 1I A \. -\ A � — \ , / / o Z \ I I v v 1 1 \ \ %\.\\1/4 I �/r z •; \,.... / \ \ / Z o \ 1I , .� . \ �\ ` \ \ \ \ \ \ \ \ \ \ `� 1 / , mil \\ � ,� \ l � / f/`'' / 21- i \ \ \ \ \ \ \ \ \ I r / \ - I i \ -----\ /, \ - \\ '- \`\ \ \ \ \ \\ \ \ \ \ \ 1 \ II ; K \ \v,' \�•,`• �i i , _ SEAL r•�''','' %�►, 11 I \\ ��� \ \ N. 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UPSLOPE ALONG THE LINE OF ORIGINAL GROUND ELEV. W>•3'-� -- VA.DSWC 2% TOP COURSE 2% (REVISED JUNE 2003) STAKES. 1 Dewberry Engineers Inc. SEED --! A I tt Pl:•••1-m- 2 ~ 1 anAa.v xwso sm.zoo APPLICATION GATES SPECIES APPLICATION RATES II� Parr:NAM T357 EXISTING GROUND 6 MIN.21A I � , 2.0' PFewa0.7M AGGREGATE BASE 50/50 MIX OF ANNUAL RYEGRASS II��E 67 Cu YD./ACRE a..a.p.,ar E PROFILE VIEW • SEPT. 1 -FEB. 15 (LODUM MULTI-FLORUM)•&CEREAL 50-100(Ibs./acre) �' 1 / ��- VARIABLE• (WATER)RYE(SECALE CEREALS) FLOW + Z O STONE CONSTRUCTION 4" ASPHALT PAVED ANNUAL RYEGRASS LODUM 3.STAPLE FILTER MATERIAL 4.BACKFILL AND COMPACT THE 67 CU YD.ACRE ACCESS(MOOT/1 WASHRACK FEB. 16-APR.30 ( 60-100(Ibs./acre) TO STAKES AND EXTEND Y / FILTER O COURSE AGGREGATE) MULT1-FLORUM) EXCAVATED SOIL EXCAVATED CLOTH ORIGINAL V) IT INTO THE TRENCH. (EXCAVATED) Q �R 70'MIN. 70'MIN. GROUND ELEV. Q V 1-- A COARSE Z N CLASS I ....11 AGGREGATE RIPRAP Z Z LLI FiraiR 50 bs a- - - - - - MAY 1 AUG.31 GERMAN MILLET • • • ••• • • •.•a it EXISTING .. � ' CROSS SECTION O Y �- i`I • •i• • • ,lllllll�l PAVEMENT FERTILIZER&LIME ��/,\%/�j%-:"7.- DESIGN HIGH WATER (ELEV.TOP OF 5390') CC O < O z • APPLY 10-10-10 FERTILIZER AT A RATE OF 450 lbs./acre(OR 10 Ibs./1,000 SHEET FLOW INSTALLATION (25-YR.STORM ELEV.) -T--_ Q O 0cc •MUST EXTEND FULL WIDTH A `-POSITIVE DRAINAGE •, MIN.2.0' - Z >: TO SEDIMENT sq.�) (PERSPECTIVE VIEW) Z OF INGRESS AND EGRESS TRAPPING DEVICE • APPLY PULVERIZED AGRICULTURAL LIMESTONE AT A RATE OF 2 TONS/ACRE .Qp\ MIN. 1.0' 0.5 `rt Z O m OPERATION (OR 90 LBS./1,000 SO.FT.) ', \n FLOW V PLAN VIEW .•o �.; . < Z I- 5 :•:'.W B !>:"`:. (ELEV.535.75') > O 1.)A&SOIL TEST IS NECESSARY TO DETERMINE THE ACTUAL AMOUNT OF LIME A .�� RISER CREST 5 < 0 REQUIRED TO ADJUST THE SOIL pH OF SITE. "DRY STORAGE(909.2 _ X CC RI N RP RA LIMEANDFERTILIZER - CY ��- 2.)I IL 0 TE THE INTO THE TOP 4 6 INCHES OF THE AT 535.75') DEWATERING DEVICE F•'LL J SOIL BY DISKING OR BY OTHER MEANS. ..... ., t - W _..-,...... ELEV.53.B POSITIVE DRAINAGE ••• 'WET"STORAGE(599.8 0 12'MIN. 3.)WHEN APPLYING SLOWLY AVAIIABLE NITROGEN USE RATES AVAILABLE IN � U Z TO SEDIMENT EROSION&SEDIMENT CONTROL TECHNICAL BULLETIN/4,2003 NUTRIENT .••. D 2% TRAPPING DEVICE MANAGEMENT FOR DEVELOPMENT SITES AT: CY Ai 534.8') -,- 42"DOA.RISER \'/, '.''I'/, '.--"-/, POINTS A SHOULD BE HIGHER THAN POINT B. %0 tee.�i1_p�%. .1i�!'.:� ai ! htto://ww.clastatema.us/sw/e&s.htm/Dubs DRAINAGEWAY INSTALLATION(FRONT ELEVATION) SEDIMENT CLEM/OUT 36"DIA BARREL L.L O \ POINT(ELEV.533.7') • I- o FILTER CLOTH 3.31 :TEMPORARY SEEDING SPECIFICATIONS CC - OO QUICK REFERENCE FOR ALL REGIONS 3.05 : SILT FENCE 6'x6'x24'CONCRETE BASE W Z o SECTION A-A > Z N.T.S. DESIGN ELEVATIONS W O 3.02 : STONE CONSTRUCTION ENTRANCE Z ~ ce N.T.S. MULCHES NOTESRATES TABLE 3.35-A •• SB 3.14 :TEMPORARY SEDIMENT BASIN D PER ACRE PER 1.000 sq.ft. jlW,y rau.o•TI. C- Joa::a„,,,,a,<e. N.T.S. SEAL •,,•' `1,,1,.A ii aa.�a / - TABLE 3.32-D 1}-2 TONS FREE FROM WEEDS AND COARSE ��a?I Jj! i _o, T•n �'2+ - �I�= STRAW OR (MINIMUM 2 TONS MATTER. MUST BE ANCHORED. MI �I��a �.� (REVISED JUNE 2003) 70-90 lbs. 3tla ••Vr r1rea •+»,.l , I ,Or.Tx. • :. HAY FOR WINTERSPREAD WITH MULCH BLOWER OR W. • �., ,• � "' 11 SEED' COVER) BY HAND da ��1/1 ����: a: TOTAL AMA ,•.,,,,..,. :17F. PALMO.:Eh S LAND USE SPECIES APPLICATION PER ACRE `pit.i�j54,W0 PIPE OUTLET TO FLAT •AMMAME0115110511 + : Lic.No 0g02035275 DO NOT USE AS MULCH FOR . z�0.0.0 'In �.- MINIMUM CARE LAWN TALL FESCUE' 95-100x FIBER MINIMUM 1,500 WINTER COVER OR DURING HOT, AW����•�jia� AREA WON DEFINED .m.. •• .m ram' 0-5% MULCH Ibs. 35 Ibs. DRY PERODS.• APPLY AS III/41- CHANNEL r':,`D,w•. I, ;L,w• '�O,ef ��r4`: (COMMERCIAL OR PERENNIAL RYEGRASS 0_Sx P[AN VIEW A. NENTUCKY BLUEGRASS' SLURRY. a`411 .e.o..sra.. TxN �•.,,,/ON,AC t,'C�• RESIDENTIAL) TOTAL 175-200 LBS. _..__. ip.VA1S 1O"o UATHE oe..+,r. ,,•s�S4�•�,,,�� CUT OR SHREDDED IN 4-6" $fOATp10O� "COI"°`°"" - -----_- He.* TOTAL 200-250 LBS. LENGTHS.AIR DRIED. DO NOT L O KEY PLAN HIGH-MAINTENANCE TALL FESCUE CORN ..NAAAa. ur,x,7---AR.. 1----WTI. `.tea.,, STALKS 4-6 TONS 185-275 Ibs. USE IN FINE TURF AREAS. APPLY ELEVAnrimw� LAWN WITH MULCH BLOWER OR BY mTA.e Nsa� m,s,.,,rocvA,lanlE„u•rouLANw.u,, -:-."' t „Is. O x 'nr,....TI NN.TI,r,�nE..A,sTI.,o a•,r. C GENERAL SLOPE TALL FESCUE 128 LBS. FREE r� 'F'' -.'"' '- A 01^"� 3:1 OR LESS) RED TOP GRASS OR CREEPING RED 2 LBS. FREE OF COARSE MATTER. ..,;i•2i•:•i;;iip;ll�- , � A ( AIR-DRIED. TREAT WITH 12 Ibs. ,., FESCCUE' NURSE CROP 20 BS. WOOD NITROGEN PER TON. DO NOT USE SECTION A-A FUER CO NR AIC.v c-.a,Rccawcrmm FOP omwE rERxxnx '•SE C' _-___I IaI<�� I I b••'C C*' 4-6 TONS 185-275 Ibs. + CHIPS MULCH FINE TURF R.CHIP APPLY WITH T Los,. .CTIr .ARE,.cE we9.a9wsl TOTAL 150 LBS. BLOWER, HANDLER, 'q - J�y��]` I • LIMAIMEZ5"T• ,p ICRE Of TO,"'°'TIT"'°" LOW MAINTENANCE TALL FESCUE 128 LBS. OR BY HAND. •s ''�1Z i I ,I _ SLOPE RED TOP GRASS OR CREEPING 2 LBS. FREE OF COARSE MATTER. ;W, _�����.�•��•j A 3d0(MIN.) . BARK AIR-DRIED. TREAT WITH 12 lbs. ..i wa•�•jW����.� �ane..T (STEEPER THAN 3:1) FESCUEA0 -••��!tom i 1°"F'AI'OE a.o.N. SCALE SEASONAL NURSE CROP 20 LBS. CHIPS OR 50-70 cu.yds. 1-2 cu.yds. ;NITROGEN PER TON. DC NOT USE do ' • =�i�•�a•��*�( air Sae CROWNVETCH TOTAL: 150 LBS. SHREDDED MULCH IN E TURF BLOWER.CHIP HANPLY DLER,TM --/ __-. �`������\a����•: PIPE OUTSET TO WELL I' O,,,C TM `. ® C'.I C•, 1 ,r I •T. 1 emi •1-WHEN SELECTING VARIETIES OF TURFGRASS,USE THE VIRGINIA CROP OR BY HAND. WW-�����••� DEFINED CHANNEL IMPROVEMENT ASSOCIATION CA RECOMMENDED TURFGRASS VARIETY LIST. A..ps�?N.��•ay IMO.- e•x MFR.uw,wow.Eo •WHEN FIBER MULCH IS THE ONLY AVAILABLE MULCH DURING PERIODS WHEN PLAN VIEW '.••a,e4 1P-' - VCW SEED WILL BEAR A LABEL INDICATING THAT THEY ARE APPROVED BY •a.-' T STRAW SHOULD BE USED.APPLY AT A MINIMUM RATE OF 2,OC✓J Ibs./ac. OR 45 ..eeII II..ec VGA. A CURRENT NRFGRASS VARIETY UST IS AMIABLE AT THE LOCAL - ..m,.I i RJa"%Rm..nwerai in I:: I is LNa l :11111 COUNTY EXTENSION OFFICE OR THROUGH VCA AT 804.746.4884 OR AT Ibs./i,000 sq./t. -F L a htlo://sudan.cses.vt.edu/html/Turf/turf/oublica8ons/oublicatian52aLAS 3.35: ORGANIC MULCH MATERIALS ^����"r" _ 2-USE SEASONAL NURSE CROP IN ACCORDANCE WITH SEEDING DATES AS STATED I o s-. BELOW: �6 AND APPLICATION RATES d MISER MO BARRE, �0'Y REWIRED�*.moo I 31 IT;Ca FEBRUARY 16-APRIL 30 ANNUAL RYE ; REVISIONS MAY 1 -AUGUST 15 FOXTAIL MILLET SECTION A-A I T ""£' ATOM. AUGUST 16-OCTOBER 31 ANNUAL RYE !TIER CIa0N 'Er.I 6-9-,RECONAMMO FOR MINE PERMIER >a..ACA� N AnurNEAa•I ,wu®R NOVEMBER 1 -FEBRUARY 15 WINTER RYE I a.IFT 3-SUBSTITUTE SERICEA LESPEDEZA FOR CROWNVETCH EAST OF FAPMVILLE,VA ,C, T ,en, (MAY THROUGH SEPTEMBER USE HULLED SEED.ALL OTHER PERIODS,USE 'siaOil"al THAN Ar:;.'a"µt �a2,-TE 3o,«,Ccol aA,TOPsss UNHULLED SERICEA).IF FLATPEA IS USED,INCREASE RATE TO 30 LBS/ACRE. NOTES.I APRON LINING WY BE RIPTIDE.d10UTE0 R1PRAP,GABON BASKET.OR MACHETE Mr B IF WEEPING LOVEGRASS IS USED,INCLUDE IN ANY SLOPE OR LOW OA 2 L•IS THE LENGTH Of THE v0505 APRON AS ULULATED USING PLATES 3.IB-3 AND 3.18-.. ,FROM'""`'401 4 06/20/19 ACO REVISION 4 MAINTENANCE MIXTURE DURING WARMER SEEDING PERIODS,INCREASE TO 3 d-I nas WE IwIIwM STONE°METER,BUT NOT LESS THAN s INCHES. s,..•e,CN..,,..., B1RAW8N$ A.HAND PLACED BROWN ROUNDED RNERSTONE FROM'-12 S LIES. ONI ASPHALT.STONE >..o+INA. 3 05/10/19 ACO REVISION 3 30-40. tOML PLASTIC UHbNG mmmm`/ SHALL BE A 50/50 La OF THE♦•-6•AND T•-12•SIZES. _ 4• I or N>n FERTILIZER&LIME �_/���-�I �� _ �m^> o<�..,.o•N+., 2 02/27/19 ACO REVISION 2 1. • APPLY 10-10-10 FERTIUZER AT A RATE OF 450 Ibs./acre(OR 10 Ibs./1,000 I--- ��P' PIPE OUTLET CONDITIONS BOTTOM TT•r.NATEA7a1` I 01/l13/19 AGO 100i DOCUMENTS sq.Pft.) 1 4� N.T.S. .Na...oc 0E2 OS3.4 E30.41234530REW rn MEM]S' Na. 07/23/18DATE BY Oeseript'lon DOCUMENTS • APPLY PULVERIZED AGRICULTURAL.) LIMESTONE AT A RATE OF 2 TONS/ACRE St OK v.Lw. (OR 90 LBS./1,000 SQ. FT.) ■�I♦��■/ SLOPE 01 •AR"a'm; �R NOTE: /VISW SIGN ,1 m L-=15NR.'ra• MN 1.)A SOIL TEST IS NECESSARY TO DETERMINE THE ACTUAL AMOUNT OF LIME GRAVEL AND WIRE MESH DROP INLET SEDIMENT FILTER SW/OEM.W°A20"' REQUIRED TO ADJUST THE SOIL pH OF SITE .o� - IOTO`" r.sKR,,..,N„FTI DRAWN BY CLG 2.)INCORPORATE THE LIME AND FERTILIZER INTO THE TOP 4-6 INCHES OF THE STAKE I:we 18" MIN. GRAVEL(12"MIN.DEPTH) I s�,1°'r°� - SOIL BY DISKING OR BY OTHER MEANS. SIRRMBNFS 101l PLASTIC RUNOFF PATE'. _ APPROVED BY FCP �UNNG W/SEDIMENT ,,,,,..�!i� P�����, �{ 3.)WHEN APPLYING SLOWLY AVAILABLE NITROGEN USE RATES AVAILABLE IN , H �.��gi/,a2�-ijtA� .1«1 CHECKED BY DIM EROSION&SEDIMENT CONTROL TECHNICAL BULLETIN/4,2003 NUTRIENT NATURAL GROIN l ••'a'>'�K.��� �6���''tat om• Al.,.cvAm.Ru.E..rn,w0, MANAGEMENT FOR DEVELOPMENT SITES AT: ••P;;V:- .rrtzt! I om mi O //ww.dcrstate.va.us/sw/e&s.htm/Dubs SECTION A'A V15BLE SIGN - -" r i�i �s��� i��'=� .�=>�"��i r=:-��- SEMBIT 'a'w -_ BELOW GROUND a�a % % % % \"4/�,'�I �� TITLE o VA ,I - I�����li ■ ■ ■ i IIIIlIm- EROSION & 3.32 : PERMANENT SEEDING SPECIFICATIONS \�r TOMLa�sTlc . =I_- - "a a' `I SEDIMENT e =I li i, ,O;E„�OF,„ � SEDIMENT CONTROL FOR PIEDMONT AREA / "LNG WIRE MESH R DETAILS NATURAL GLOW I SEDIMENT c MFa,:H" <,:I SECTION A•A -WOOOPLINIS FILTEFILTERED A I ABOVEGROUND SPECIFIC APPLICATION •'m• � 18"MIN •:'•a_-=t•P^�'t_-�.�^_'2ssm_3'vcr.Af .4,'4,n'i nt ( ,LOA.___ THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE HEAVY CONCENTRATED FLOWS ARE EXPECTED BUT NOT WHERE PONDING AROUND THE STRUCTURE MIGHT CAUSE EXCESSIVE .:•vim%-lataaeR:^ .-aft-:�i a1��:L :.:ms._emu::.tt.r-' DFJ PROJECT NO:50100451 INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED AREAS. �ar'er.1.SIx_..E,e2 CONCRETE WASHOUT AREA �I��,� i' 0 NOTES: ����Ssr'... may: SHEEP NO. 4- 4.5'MIN I 1.CAP NYLOPLAST INLETS UNTIL SITE IS STABILIZED. =====_�= Y.T.S. ..1Q:1�-s:-�r.!�_.E__ DD TEMPORARY DIVERSION DIKE IP 3.07 : INLET PROTECTION --- C5 01 N.T.S. Section 5. Stormwater Management Plan Provide a reduced 1 1x17 copy of the latest sormwater management plan. Do not reference only.) Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP)Albemarle County I I L i J I -, i J STORMWATER NARRATIVE • Dewberry'PROJECT DESCRIPTION PRE-DEVELOPMENT LAND USE OUTFALL 1 POST-DEVELOPMENT LAND USE OUTFALL 1 THIS PROJECT IS LOCATED AT THE BIRDWOOD GOLF FACILITY ADJACENT TO THE BOAR'S HEAD SPORTS CLUB IN THE COUNTY OF ALBEMARLE, VIRGINIA. THE PROJECT INCLUDES THE DEVELOPMENT OF A CHAMPIONSHIP TENNIS 0 Dewberry r Dewberry COMPLEX THAT INCLUDES NEW COURTS, STANDS, AND TENNIS BUILDING,AS WELL AS, AN UPDATED BIRDWOOD GOLF CLUBHOUSE PARKING AREA. THE SITE IS LOCATED SOUTH OF BERWICK ROAD, WEST OF THE BIRDWOOD Figure 2.1-Pre-Development Curve Number Value Calculation Figure 2.2-Post-Development Curve Number Value Calculation Dewberry Engineers Inc. CLUBHOUSE. AND EAST OF THE SPORTS CLUB FACILITY. THE PROJECT AREA IS APPROXIMATELY 9.75 ACRES AND Moe maw Aeok Caws Suecoo WILL DISTURB APPROXIMATELY 9.75 ACRES. THIS PROJECT WILL INCREASE THE IMPERVIOUS SURFACE WITHIN THE Own Alen,YA nos) PROJECT AREA BY 3.25 ACRES. THE POST DEVELOPMENT SITE AREA IS 50% PERVIOUS AND 50% IMPERVIOUS. TR-55 Curve Number Values for Urban Areas TR-55 Curve Number Values for Urban Areas A1p1r'e0i 090.]� Fs..ae4.2e0.1 20 THIS AREA DRAINS INTO MOORE'S CREEK AND THEN INTO THE RIVANNA RIVER. SOILS FOR THE PROJECT WERE CN'S FOR RUNOFF IN URBAN AREAS CN'S FOR RUNOFF IN URBAN AREAS www.dermenyawn E MODELED AS TYPE C CLASSIFIED SOILS BASED ON HISTORIC DATA AND SOILS MAPPING FOR THE AREA -COVER DESCRIPTION ^"G'' ' 14`01W CN FOR SOIL GROUP: COVER DESCRIPTION Aw•r.."T."rl^' CN FOR SOIL GROUP: STORMWATFR MANAGfMFNT MFTHODS (QUALITY)' AMA ABC D �' A 8 C D Z THE VIRGINIA RUNOFF REDUCTION METHOD WATER QUALITY CALCULATIONS IN SHEET C6.04 INDICATE THE COVER TYPE - - COVER TYPE _ 0 1" REQUIRED PHOSPHORUS LOAD REMOVAL FOR THE SITE BASED ON THE EXISTING AND PROPOSED IMPERVIOUS OPEN SPACE:IIAWNS.PARKS.EC.1 OPEN SPACE:(LAWNS.PARKS,ECT.) AREA WITHIN THE SITE'S DRAINAGE AREA IT IS REQUIRED TO REMOVE 6.90 LBS/YEAR OF PHOSPHOROUS FOR GRASS COVER<SO% 68 79 86 89 GRASS COVER<SO% 68 79 86 89 1.17 Q O THIS SITE. THIS WAS ACCOMPUSHED THROUGH THE PURCHASING OF STORMWATER CREDITS AND THE USE OF 1.1 GRASS COVER 50%TO 75% 49 69 79 84 GRASS COVER SO%TO 75% 49 69 79 84 /r,, I- LB/YR OF CREDITS FROM THE GOLF COURSE PROJECT (WP0201800016). GRASS COVER>75% _39 61 74 80 GRASS COVER>75% 39 61 74 80 V a IMPERVIOUS AREAS: IMPERVIOUS AREAS: Z Z W STORMWATFR MANAGFMFNT METHODS (QUANTITY)- THE CALCULATIONS COMPLETED FOR THIS REPORT ANALYZED THE 1-YEAR. 2-YEAR,AND 10-YEAR STORM PAVED PARKING LOTS,ROOFS,DRIVEWAYS.ECT. 98 98 98 98 PAVED PARKING LOTS,ROOFS,DRIVEWAYS.ECT. 98 98 98 98 Y� EVENTS. THE SUMMARY TABLE BELOW SHOWS THE COMBINED PRE AND POST-DEVELOPED RUNOFF FOR THESE STREETS AND ROADS: STREETS AND ROADS: D EVENTS FROM THE COMBINED SITE AT THE PROJECTS OUTFALL. ADDITIONAL AREA FROM OUTSIDE THE LOD THAT PAVED;CURBS AND STORM SEWERS 98 98 98 98 PAVED;CURBS AND STORM SEWERS 98 98 98 98 0 LL U DRAINS TO THE STORMWATER CONVEYANCE SYSTEM IS INCLUDED IN THE CALCULATIONS. PAVED;OPEN DITCHES 83 89 92 93 PAVED;OPEN DITCHES 83 89 92 93 I.L < Q CL OUTFALL ONE LEAVES THE SITE FROM THE PROPOSED STORM SYSTEM THEN FLOWS TO SWALES WHICH LEAD TO GRAVEL 76 85 89 91 GRAVEL 76 85 89 91 - Q Z Q ZU, A STREAM THAT OUTFALLS TO MOORE'S CREEK AND THEN INTO THE RIVANNA RIVER. DIRT 72 82 97 89- DIRT 72 82 87 89 0 O S URBAN DISTRICTS: z S URBAN DISTRICTS: Z COMMERCIAL AND BUSINESS 85% 89 92 94 95 COMMERCIAL AND BUSINESS 85% 89 92 94 95 Z V rr/^S J O INDUSTRIAL 72% 81 88 91 93 INDUSTRIAL 72% 81 88 91 93 - < Z U w OUTFALL 1 PRE-DEVELOPMENT DETAINED (CFS) VRRM DRAINAGE AREA A VRRM DRAINAGE AREA A 5 a D p (CFS) - _ CN SOIL TYPE ACRES PRODUCT X 1-YEAR STORM 16.15 4.99 CN SOIL TYPE ACRES PRODUCT Li. J W 1- _ OPEN SPACE 74 C 7.91 585.34 OPEN SPACE 74 - C 4.86 359.64 0 0 Z U 2-YEAR STORM 23.03 6.75 IMPERVIOUS AREAS 98 C 1.60 156.8 IMPERVIOUS AREAS 98 C 4.85 475.3 ` < O D URBAN DISTRICTS URBAN DISTRICTS rt': 0 10-YEAR STORM 44.81 40.26 TOTAL AREA 9.51 TOTAL AREA 9.71 TOTAL PRODUCT 742.14 TOTAL PRODUCT 834.94 C/) vJ p COMPOSITE CN 1-YR 2-YR 10-YR CALC •1,2,10 Year Values from VRRM COMPOSITE CN• 1-YR 2-YR 10-YR CALC CC0 78 78 78 78 86 86 86 86 W Z O >_ Z Z I- IN ORDER TO ACCOMMODATE INCREASED FLOW PRODUCED BY THE SITE, A DETENTION BASIN WAS DESIGNED TO DETAIN FLOW FROM THE SITE GOING TO OUTFALL 1 FOR THE 1, 2 AND 10 YEAR STORM EVENTS PRIOR 1-YEAR PREDEVELOPMENT 1-YEAR POSTDEVELOPMENT �... �w STORM CALCULATIONS OUTFALL 1 TO OUTFALL 1. DETAILED DESIGN OF THE DETENTION BASIN CAN BE SEEN ON SHEETS C6.08. C6.09 ANDSEAL ,� - C6.10. CHANNEL PROTECTION FOR A MANMADE CONVEYANCE SYSTEM (9VAC25-870-66.1) WAS MET AT STORM CALCULATIONS OUTFALL 1 - .1�`"�'a�`/fj• 'C+1,L OUTFALL 1 BY USING THE ENERGY BALANCE EQUATION, SEE COMPUTATIONS THIS SHEET. FLOOD PROTECTION REQUIREMENTS FOR THE OUTFALL WAS MET BY DECREASING THE SITE PEAK FLOW RATE FOR THE 2-YEAR HydroCAD-UVAF Tennis Facility(Detention Pond) Type 1124-hr 7 Rainfall=3.04' O F.CA- IRON 24-HOUR STORM AND 10-YEAR 24-HOUR STORM FROM PREDEVELOPMENT TO POSTDEVELOPMENT PreparedHydroCAD-UVAF Tennis Facility(Detention Pond) TypeN 24-hr I Rainfall=3.04' by DEWBERRY Primed 5Paw 1 Y U CONDITIONS. THE TABLE BELOW DETAILS THE ALLOWABLE DISCHARGE FROM THE ENERGY BALANCE EQUATION EfydroCADa+oao-zt em 05760 0201e HydroCAD Software sawoone LLC pave 1 Prepared by DEWBERRY Footed 5rv2019 PALMORE HydnI ®CAD100D-21 e/n 05780 O 2018 HydroCAD Software Solutions LLC Pace 3 FOR THE 1-YEAR STORM COMPARED TO THE POSTDEVELOPMENT 1-YEAR DISCHARGE FROM THE SITE. Lis.No.040203S275a Time by S T hit.dt hrs, prints Runoff by SC TR-20 method.UH=SCS,Weighted-CN Summary for Subcatchment 13S:Proposed Site Area(to Outfall) lit ,d ve Reach routing by Stor-Ind+Trare method-Pond routing by Slor-Ind method ti?e 'a�r 7 04� Runoff = 25.84 cfs® 12.01 hrs,Volume= 1.373 al,Depth=1 70' SI..B20NALSN�AV' Buboatchmem5S:DA Pre(to Dull))) Runoff Area--9.510 ac 0.00%Impervious Runoff Depih.1.16' NuuNN• OUTFALL 1 ALLOWABLE (CFS) DETAINED (CFS) Tc=11 1 min CN.76 RurofH-16.15 Els 0.917 of Runoff by SCS TR-20 method.UH=SCS,Weighted-CN,Time Span=0.00-48.00 hrs.d1=0.01 hrs KEY PLAN Type II 24-hr 1 Rainfal1=3.04' 8ubcaWMwntl3S:Proposed Bib Ana(b Runoff Arm=9.710 a<0.00%Impervious Rural)Depth=+.7O' Tu---9 4 m -0 in CN6 RuraR al Area cfs 1.373 ea(an) CN Oaegipbon C 1-YEAR STORM 8.63 4.99 • 9.710 86 mesh SR:Outfall Inaowm 99 ds 1.393 al Re Oudlow•4.99 cfs 1.393 al 9.710 100.00%Pervious Area Qdeveloped = I.F. • (Qpre-developed•RVpre-developed)/RVdeveloped Qdeveloped = 0.8 • (16.15•0.917)/1.373 = 8.63 Total Runoff Area•19.220 ac ( Runoff Volume•2290 of Average Runoff Depth•1.43- Tc L fmgth Slope lsen) Capacity Description Qpre-developed = 16.15 de 100.00%Fend se•19.220 0.00%Impervious•0.000 x 9.4 (feet)-. CRRt] ({Nast) { ) Direct E RVpre-developed - 0.917 of RVdeveloped = 1.373 of Subcatchment 13S:Proposed Site Area(to Outfall) I.F.= 0.8 08M•emos SCALE HydroCAD-UVAF Tennis Facility(Detention Pond) Type 1124-hr 1 Rainfa0=3 04' a 0 Prepared by DEWBERRY Printed 522019 ai HydroCADA 10.00-21 sin 05760 D 2018 HydroCAD Software Solurans LLC Pape 2 Type II 24-hr - HYDROCAD SCHEMATIC FOR OUTFALL 1 Summary for Subcatchment 5S:DA Pre(to outfall) 1 Rainfall=3.04" - Runoff Area=9.710 ac Runoff = 18.15 cis® 12.03 hrs,Volume. 0917 a1.Depth=1.16' Runoff Volume=1.373 of Runoff by SCS 113-20 method,UH=SCS,Weighted-CN,Time Span-0.00-48 00 her,d1=0.01 hrs I.'e ±0e * o091414er0 Runoff Depth=1.70" Type II 24-hr 1 Rainfall=3.04' 1" Tc=9.4 min Area(ac) CN Description lo CN=86 REVISIONS t y • 9.510 78 ------ l +� f 9.510 100.00%Pervious Area \ r \ Tc Length Slope Velocity Capacity Description ` � POstt, lA (min) (feet) (Mt) (R/sec) Ws)ll V --/ 11.1. Dlract Entry, B DA Pre(to°titian; a r « w " SWTvt DA Past Detention Basin Subcatchment SS:DA Pre(to outfall) 3 05/10/19 ACO REVISION 3 Ny4rapr•ph (11E1 2 02/27/19 ACO REVISION 2 / +, ® Type II 24-hr 1 01/03/19 ACO 100%DOCUMENTS ��' j ` 1 Rainfall=3.04" HydroCAD-UVAF Tennis Facility(Detention Pond) Type 1124-hr 1 Rainlep=3.04' 07/23/18 JRC tocz DOCUMENTS / 3si ( 4 r 1 D Prepared by DEWBERRY Printed`51212019 No. DATE BY Description y �` f Runoff Area=9.510 ac HwOCADR 10.00-21 sin 06760 a 2018 HydroCAD Software SahAbna LLC Peps 4 U 12 Runoff Volume=0.917 of (i PTO Bypass Site Area Outfoll Summary for Ruch SR:Outfall Proposed Site Area;to !' Runoff Depth=1,16" DRAWN BY CEO Tc=11.1 min (40(Hint Not Described(Ostn "ro a"= ve) Outfall) APPROVED BY FCP - CN=78 Inflow Area= 9.710 as 49.74%Impervious,Inaba Depth= 1.72' for 1 event _ Inflow = 4.99 da 0 11.97 les,Volume= 1.393 of Out9ow = 4.99 ds fa 11.97 Ins,Vole= 1.393 al.Albn=0%,Lag=0 0 min BY DMK um Routing by Stor-Ind+Tram method.Time Span=0.00-4800 hrs,dt=0.01 hrs TITLE Roach O r 4 I , ,0 ,r „ m a n as m ae o " 0 SR:tithe.)) SWM NARRATIVE m n+e•m / AND OUTFALL Inflow Area=9.710 ac CALCULATIONS Aa 4 >C DEI PROJECT NO'.50100451 SHEET NO C6.01 a 3 • 4 a t0 ri H �•to i. a]r...a 47 M re. 1 I c I .I I -t I .4 2-YEAR STORM CALCULATIONS OUTFALL 1 10-YEAR STORM CALCULATIONS OUTFALL 1 NODE 4S OUTPUT OUTFALL 1 NODE 4S OUTPUT OUTFALL 1 . Dewberry• HydroCAD-UVAF Tennis Facility(Detention Pond) Type II 24-hr 2 Rain108=3.68' HydroCAD•UVAF Tennis Facility(Detention Pond) Type a 24-hr 10 Rainfall=5.56' HydroCAD-UVAF Tennis Facility(Detention Pond)- Type II 24-hr 1 Rolnfa8=3.04' HydroCAD•UVAF Tennis Facility(Detention Pond) Type I/24.hr 10 Relnfa0=5.56- Dewberry Engineers Inc. Prepared by DEWBERRY Panted 5/2/2019 Prepared by DEWBERRY Pnnted 5/22019 Prepared by DEWBERRY Printed 52/2019 Prepared by DEWBERRY Printed 5/2/2019 4805 tr.amA Ciew.Seas 200 Hydro0000 10.00-21 rdn 05760 0 2018 HydroCAD Software Solutions LLC Peas l /IydreCADe 10.0021 em 05780 O 2018 HydroCAD Soawre Solutions LLC Paoe 4 HydroCADO 1000-21 sin 05760 0 2018 HydroCAD Software Solutions LLC Pane 1 HoaroCADO 10.00-21 sin 05760 O 2018 HydroCAD Software Solutions LLC Pace`v Oren Ian VA mm Phm..804290 7957 Time spane.00-48.0o hrs.dt=0.o 1 hrs,4801 points Time span=0.00J8.00 hrs.d1=0.01 Iva,4801 pants Time open-.00-48.00 hrs,dt=0.01 hrs,4801 points Time spry 00-48.00 hrs.dt=0.01 hrs.4801 points F.8042097028 Runoff by SCS TR-20 method,UH=SCS.Weghted-CN Runoff by SCS TR-20 method,UH=SCS,Weighted-CN Runoff by SCS TR-20 method,UH=SCS,Weighted-CN Runoff by SCS TR-20 method,UH=SCS.Weighted-CN ••e.4swbery.ccm E Reach routing by Stor-Ind.Trans method-Pond rou5rg by Stor-Ind method Reach routing by Slor-Ind.Trans method-Pond routing by Ste'-Ind method Reach rating by Stour-ind•Trans method-Pond muting by S(or-Ind method Real routing by Stour-Ind.T2M method-Pond routing by Star-Ind method Subcatchm.nt5S:DA Pre(to outran) Runoff Area=9.510 ac 0.00%impervious Runoff Dep41=1.64' SubcatchmenttS:DA Pre(to ouda0) Runoff Area--9.510 ac 0.00%Impervious Runoff Depth=3.19' Subcatchment4S:Pro Bypass Site Arne Runoff Area=1 840 ac 14.67%Impervious Runoff Deplh=1.18' Subcatchment4S:Pro Bypass Site Area Runoff Area=t 840 ac 14.67%impervious Runoff Depm=3.19' Z Tot 1 1 mm CN=78 Runoff=2303 cis 1.296 at Tot 1 min CN=78 Runoff=44.81 cis 2.531 of Tc=5.0 min CN=78 Rurott=3.96 cfs 0 177 of Tc=5.0 min C51=78 Rurw8=10 76 cfs 0 490 a/ O Ruch 5R:Outfall Inllov=8 75 cfe 1.667 of Reach 5R:Out/all Inflow--40.26 cta 3.246 al Total Runoff Area•1.8441 ac Runoff Volume•0.177 of Avenge Runoff Depth•1.18- Total Runoff Area=1.840 ac Runoff Volume=0.490 of Average Runoff Depth=3.19- 0 Outflow=6.75 ch 1 847 of Outeow=40 26 cis 3.246 al 115.33%Pervious•1,570 so 14.17%htpervlous•0.270 ac 85.33%Pervious=1.570 ac 14.67%Impervious=0.270 ac J Total Runoff Area•9.510 ac Runoff Volume•1.2%of Average Runoff Depth•1.64' Total Runoff Area•9.510 ac Runoff Volume•2.531 of Average Runoff Depth•3.19' 0 /fS I.- 100.00%Pervious•9.510 ac 0,00%impervious•0.000 ac 100.00%Pervious=9.510 ac 0.00%Impervious•0.000 ac �J ZZ w HydroCAD-UVAF Tennis Facility(Detention Pond) Type II 24-hr 2 Rainfall=3 68' HydroCAD-UVAF Tennis Facility(Detention Pond) Type I/24-hr 10 Rainfa0=5.56- HydroCAD-UVAF Tennis Facility(Detention Pond) Type II 24-hr 1 RainfaO=3.04' HydroCAD-UVAF Tennis Facility(Detention Pond) Type II 24-hr 10 Rainfall=5.56' O CC D Prepared by DEWBERRY Pnnted 5/22019 Prepared by DEWBERRY Printed 522019 Prepared by DEWBERRY Pnnted 522019 Prepared by DEWBERRY Printed 522019 Ii. < U HydroCA00 10.00.21 yn 05760 0 20113 HydroCAD Software Solutions LLC Paae 2 HydroCADO 10.00-21 sin 05760 0 2018 HydroCAD Software SoWirons LLC Page 5 HyoroCA05 10.00-21.In 05760 0 2018 HydroCAD Software Solutions LLC _- Parse 2 HydroCAD010.00.21 sin 05750 0 2018 HydroCAD Software Solutions LLC Paoe 6 - /si L 2 7 a O 1 Summary for Subcatchment SS:DA Pre(to outfall) Summary for Subcatchment 55:DA Pre(to outfall) Summary for Subcatchment 4S:Pro Bypass Site Area Summary for Subcatchment 4S:Pro Bypass Site Area Z O Q Zcc Runoff = 23.03 oh @ 12.03 hrs,Volume= 1.296 at.Depth=1.64' Runoff = 44.81 cra @ 12.03 hrs,Volume= 2.531 a1.Depth=3.19' Runoff = 3.96 cfs tf 11.97 hrs,Volume= 0.177 of Depth=1.16' Runoff = 10 76 cis @ 11.96 hrs.Volume= 0 490 al.Depth=3.19' Z CO 0 j Runoff by SCS TR-20 method.UH=SCS,Weighted-CN.lime Span=0.00-48.00 hrs.dt=0.01 hrs Runoff by SCS TR-20 method.UH=SCS.Weighted-CN,Time Span=0.00-48.00 hrs,dl=0.01 his Runoff by SCS TR-20 method,UH=SCS.Weighted-CS Time Span=0.00-48.00 hrs,dt=0.01 hrs Runoff by SCS TR-20 method.UH=SCS,Weighted-CN,Tlme Span=0.00-48 00 Ors,dl.0.01 hrs 0M < Z - > Type II 24-hr 2 Rainfall=3.68' Type II 24-hr 10 Rainfall=5 56' Type II 24-hr 1 Rainfa0=3.04- Type II 24-tr 10 Remlall=5 56' LL Q (_ w Area tact CN Description Area(ac) CN Description Area(ac) CN Descnplan Area(ac) CN Description > a. D p • 9.510 78 • 9.510 78 0.270 98 Paved roads w/orbs 8 sewers,HOG C 0.270 98 Paved roads w/orbs 8 sewers,HSG C X CC 9.510 100.00%Pervious Area 9.510 100.00%Pervious Area • 1.570 74 >75%Grass cover,Good,HSG C • 1.570 74 >75%Grass cover,Good,HSG C I..L .--I I- Tc Length Slope Velocity Cepadry Description Tc LengthSlopeVelocityCa 1.840 78 Weighted Average 1.840 78 Weighted Avenge 0 w Z U Capacity Description 1.070 85.33%Pervious Area 1.570 85.33%Pervious Area O Z (min)_ (feet) (Mt) (Neat) (cfa) (min) (feet) OUR) (Nsec) ids) 0270 14.87%Impervious Area 0.270 14.67%Impervious Area Q 0 D 11.1 Direct Entry, 11.1 Direct Entry, To Length SlopeVelocity Verity Capacity Description Tc Length Slope Velocity Capacity Description I..L 0 Subcatchment SS:DA Pre(to outfall) Subcatchment 5S:DA Pro(to outfall) (cola) (feet) !Nit) (105ec) (cis) (min) (feet) (ft/R) (Nsec) (n14) Cl) rin^ o Mumma. Hym4praPn 5.0 Direct Entry, 5.0 Direct Entry, CA) u) O em 0 0 ® Subcatchment 4S:Pro Bypass Site Area Subcatchment 4S:Pro Bypass Site Area W\ Z O . hreopraah wydroyraph / 7 r Type II 24-hr Type II 24-hr - __ - W 21- 2 Rainfall=3.68" 10 Rainfall=5.56" l� "ii Z I- Runoff Area=9.510 ac se Runoff Area=9.510 ac Type II 24-hr Type II 24-hr 3.4 Runoff Volume=1.296 of Runoff Volume=2.531 of 1 Rainfall=3.04" 10 Rainfall=5.56" Runoff Depth=1.64" 4' Runoff Depth=3.19" Runoff Area=1.840 ac Runoff Area=1.840 ac SEAL fee tie - i 11 Tc=11.1 min i a. Tc=11.1 min Runoff Volume�.177 of Runoff Volume=0.490 of - 1t1�o�a7/ • T CN=78 fi Runoff Depth=1.16"20M4asranaaa4042 0 2 4 9 a 10 12 14 a le 20 22 24.al a m 32 a le a 40a « a w V410 A H C'0 a 4 a a 10 12 14 m 14 30 32 « a a w 42 « a « 0 2 4 6 a 10 12 14 1a a » c 34 z a w w« 4e w KEY PLAN HydroCAD•UVAF Tennis Facility(Detention Pond) Type II 24-hr 2 Rainfall=3.68' HydroCAD-UVAF Tennis Facility(Detention Pond) Type II 24-hr 10 Rainfall=5.56' new me.a 1O Memel a C Prepared by DEWBERRY Pnnted 5/2/2019 Prepared by DEWBERRY Printed 62/2019 . HydroCADO 10.00.21 yn 05760 O 2018 HydroCAD Software Solutions LLC Page 2 HvdrOCADO 10.00-21 yn 05760 0 2018 HSWOCAD Software Solutions LLC Paoe Summary for Reach SR:Outfall Summary for Reach SR:Outfall (40)Hint.Not Described(Ootflow=Inflow) (40(Hint Not Described(Outflow=Inflow) HydroCAD-UVAF Tennis Facility(Detention Pond) Type II24-Ar 2 Rainfall=3.68' Inflow Area= 9.710 ac,49.74%Impervious,Inflow Depth= 2.28' for 2 event Inflow Area= 9.710 ac,49.74%Impervious,Inflow Depth= 4.01' for 10 event Prepared by DEWBERRY Printed 5/2/2019 Inflow = 6.75 cis @ 11.97 hrs,Volume= 1.847 of Inflow = 40.26 cfs @ 12 06 hrs.Volume= 3.246 al HydroCA0010.00-21 sin 05780 0 2018 HydroCAD Software Solution LLC Page 3 Outflow = 6,75 cis 0 11.97 hrs.Volume= 1.847 al.Atten=0%,Lag=0 0 min Outflow = 40.26 cis @ 12 06 hrs,Volume= 3.248 a1 Allen=0%,Lag=0.0 min Time span-0.00-48.00 M,d1=0.01 hrs.4801 points SCALE Routing by Stor-Ind.Trens method,Time Span=0.00.48.00 hrs.dt=0.01 hrs Routing by Stor-Ind+Trans method.Time Span=0.00-48.00 hrs.dt=001 hrs Runoff by SCS TR-20 method,UH=SCS.Weighted-CN Reach routing by Slot-IndaTrans method-Pond muting by Stor-Ind method Reach 5R:Outfall Reach SR:Outfall RydrOer.Pn Hy�y Subcatchment4S:Pro Bypass Site Area Runoff Area=1840ec 10.67%Impervious Runoff Deem=1.64' / Tc-50 nun CN=78 Rurofl=5 60 cts 0 251 al I I�,. Total Runoff Area=1,840 ac Runoff Volume=0.251 of Average Runoff Depth-1.64" Inflow Area=9.710 ac Inflow Area=9.710 ac 85.33%Pervious=1.570 ac 14.67%Impervious=0.270 ac 35 REVISIONS or $ 4 6 a HydroCAD-UVAF Tennis Facility(Detention Pond) Type l/24-hr 2 Rainfall=3.68' • - 1 L m Prepared by DEWBERRY Panted 522019 HyMOCAD9 10.00-21 yn 05760 O 2018 HydroCAD Software Solutions LLC Pape 4 B Summary for Subcatchment 4S:Pro Bypass Site Area Runoff = 5.60 cfs @ 11.96 hrs,Volume= 0.251 af,Depth=1.64. - Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span=0.00-4800 hrs.lift his 0.01 h 3 05/10/19 ACO REVISION 3 o Type II 24-hr 2 Rainfall=3.68' 2 02/27/19 ACO REVISION 2 0 2 . e e 10 12 ,. ,e ,a 20 M22 a 7e v s r a a 40 w « «4a o 2 4 e e 10 12 i. is ,a a x v v > a 40 a« r a Area(acl CN Descnplkn 1 01/03/19 ACO 100%DOCUMENTS 0.270 98 Paved roads w/curbs 8 sewers,HSG C 07/23/18 JRC 100%DOCUMENTS • 1.570 74 .75%Grass cover,Good,HSG C No. DATE BY Description 1.840 78 Weighted Average 1.570 85.33%Pervious Area 0.270 14.67%Impervious Area Tc Length Slope Velocity Capacity Description DRAWN BY CLG 161) (feet) (Mt) (Nsec) (ofs) 5.0 Direct Entry, - APPROVED BY FCP Subcatchment 4S:Pro Bypass Site Area CHECKED BY DIM nnssews. /4 I� TIrt.E ew Type II 24-hr OUTFALL 2 Rainfall=3.68" CALCULATIONS Runoff Area=1.840 ac 4 Runoff Volume*3.251 af t Runoff Depth=1.64" A f I Tc=5.0 min CN=78 DEI PROJECT NO.50100451 SHEET NO aa ,a .2i. ialr �.p.m., aaww «N 26 « « C6.02 ' _ I c I _ ./ I -r I .r 9 Dewberry` Dewberry Engineers Inc. 4805 law.Brow On,Suite 200 Glen Man,VA 20090 Phone:4d4.29U2e Fax:a01.290.Me www.e..eem.mro E Z PRE-DEVELOPMENT DRAINAGE AREA MAP POST-DEVELOPMENT DRAINAGE AREA MAP ,,\_ , _O I— Q �`. �.. \ gfnwi \ \ rr ♦ i1 ,"mow+.--T+►�. �i ca /� / I 1���'7j�.e \_,.. � `p;„ Z .::,S;...____-,__."-•-._,.,..,,,,,,,,,,- 0//,„A . 8 c,- "4' ,t'e. // / • -7.,._,-..7-:.---_-...---=.-‘,,,-.... , / \ /7// ( II 5 / / / \�i �,1\\ /// ?��j � /� , ;4 �� �I� \ ll�lli t � '*wc // f \\\ ) i / --�V��� --OUTFACE Q Z F- wy // AA �� ///�/ I /.z /41,� �; DRAINAGE Q$� // \ + i / ;�'/ "�•�ti• \� / l�/ < �� \\ i �� AREA DIVIDE �� X CC - § r / ; JJ /; /// f _� tom , l�l,, ;/ J W 1AV i i JJ %%// 7 . .;, O 1 \ e BOAR'S HEAD sHOR /,f• / '! (•- I `JJ /�C J /f///� tj 1, � �: �InsHE ` .2`_ 1110 l pi!, ,j `r --i L_ caJ/I �, � p \ h,. /\ ? ', . �1 ();l�illlllt /�, �' '! I ,' �`� ,� �` : :` ., 1� -� 1(/// /� ,.` cnc_n 'Aft,i Q �3 e' 4 /��t,/� l I� ..1 '1f, r I I( h0 'ma y v� SHALLOW \�11 �'( I / / �s Z O / , CONCENTRATED a. , I T ¢,o.� �y / 1 l// f' _r• . r / / J�! 1;1 l 4 ���. �' w FLOW, " L11 h 4 MCARTtiUR SQU A SH >'� / rO / ,', Q 6,e,' / / ��' Z I� r �j j o ti L=11 L� ti9 0 . 4 s6 • 0 / X�t y� I 1 j / �i• L FLO SQUASH + / J �j w .�:fr� �yFae o �t y ,' / d/4'62,P 4�; "� III :;id; :�// j\„i. o�o�����j4 /� N=0.01 to Tc=1.14A��. • / SHEET FL iC O /�� Z F— i off;. / F, IXe.29 ,t I r % /i! o o �0 L=513' / ` `' /�\ o ae \ . / -,L/ \De12r, //• A�° �I`��I �'( i / n � 0 ,a� % r . N-0.15 'V � �� / ADG.1.'. ,• I. , '1� ��/ ��� J da• S=3.0% \:f" • ,i, • -- L=140' I /•qQ /� 1. DIA.=15 in. L" � ,.•V/ sEAL eew� ' ar' o� 11 i. f h D.e.` 0• �Il/ An\ i'����\�• V I (7 �A • %" Tc=1.39Min. S=13.6% I o���� • ; �� ;°off �;C� a \���.,,.•< "S.1� v1 \k\\‘‘. \ II i \v / �/ ` - •• , - �,Tc=5.56MI0 \III(', /'�v ��\`1 544. RES \ �''� � • • o F.CA- l'RONBOAR'S HFAll SPO'` CLUB / // / \ \ \ \ /' \ �. �; ti U �'u /' •' \ \\\ /� �� \ ,\ BOAR'S HEAD S'�•r�-GLUB /' '`\ . -�-- - �` .�►� `� '\\.l PALMORE ,a/�, ' /�� t `\\� v ? r/i v �� \\\ A\\�\ / ;�'� O/ ,��1 =�- �� AA �r�.r�Woaozossn��� 4ot /:. ' ��. ir ` --'ti —' \ \\--- '\ ✓� 7q i�'�`( \\ \�\�s �/ \ . ....`\\�\\� \ 1ONALt',i� �� 'l •'� � / ;If"Z � \ • \� \ �L 11 L" �\ "c. �\� •. rr% T y !\ % Vsi- 'Ire j , •� ` \�� KEY PLAN `+1,��..A "e- ty, At"' ��e \ \\\‘ V l��/�-."_ ��ilv. � � �' \ ,, A '� iii v / ,\ \I' 1`, kVff•O �� \� *+r. t. 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" •y. _ � '— r 1 \ ♦\ , is /• ti Nl- \ \\ \\�= L�'/ ' \� ��f--�% w� \ \` � \� � ��„N >, /' _ 60• 1zo• �ppyb� _ - �c \ N. • .SHALLOW' \ \/ j\ \�r •} �/��� `1 \\(\ \� \ , \ \ y = ' f4 \X\ � - \t\'\\\f�f, • 1 CONCENTRATED \.. ----/ ��-- *--7 i-�\ I , --\\ ° �; If ( 1 `` I! �: L ` \ ,\ SALE: t' = 60 T O FLOW �, \=ti `� I \\ -"\ - - -.y� k I-F / \� \ • I L.�`4.0- A ,�- \ \�1 NA\ CHANNEL FLOW \ /� A • \\ \L;��I�� v v v � � � II n i . \\\\, f— \ 1 _�/1J �(�� l � \� \ \ \\\ ? DIA.1=z4 in. �,:/�� �� \ \\\\\\\\ ,\ s\\ \ 7 /^ ' l o \\ L CHA ELf� \ �[V r r Z (( )7��--j �_ -----ti 1 A\ \"A �, IQ= o ``�� Tc=osSMin. \ 1"��'` �?� // B \�• �� �7/ 'A \A�\ .� \\_ "'~->--�/'�'.�i�--�� 'ASV A \ , A \\\,,.•,, \\ ✓s- �.o� w 4, \ \� 'tt R �/ / / i `... \ �� \ o "!— � 06/10/19 ACO REVISION J �, \�ijpB ��rr \ t \ / \`. //' 11\ \� _�\� \ \ \ DIA.=18 In -�,�-' 7u. J �,, j3 8---..//-,i"� "�� r __��(\\ ~ \\ \. \ .. \ \ Tc 0.06 Min i , �,, 2 02/27/19 ACO REVISION 2 \h\ � \t � \ `� ///'1 i�� - ��j ��\/ \\\\ '� = N CHANNEyTLOW 1 of/03/19 ACO 1o0%DOCUMENTS \ _ mo�o,, (�\ \ • \ \�� \\\\ 3 Ac\ 1.11 \ \� \ - ,/i—i- ' /A' �` \\\1 ''. •--- � `.., .�\ �� \\, 0 4• \ .... y 1 I o7/2J/1e aRc 1Dox DOCUMENTS • T \ i' -/- �- \ /' "ID� �� I No. DATE BY Description c � \ \.�c \ 1 \1 \\-, ' - `" . = \\\ D' /�4 41 (ice 1' �' 1 p \ V 4".. \ \\ \A V (/ v • \ 1 \ i1 �i \ h : �+► Tc �08Mln.i; 6• �\ i r� V % \ \ �\t I//- i- \ I I 1 \ �� -� • \ �'',-.. / ..o,c �\\.. LL.'''''' 'i 1{'1 DRAWN BY CLG — '� \ N "\ i`1\\ � \ , -rl ( i-'. ` i \ \\ \ s �� 7 /' r``"�. itTTYI I i \ APPROVED BY FCP \ . \ v rv\ \VA ` \ A� \``� ��/�I(���)j-7� ) ...ti"....s �� \ \,'v' . v ` 9 �.' \ \\ \\\ , �\�\ -- ✓�/( /// �_ r'� \� ' i BRANLYFLOW \ \\ l� \ \� , .i ` \ CHECKED BY OMK (` `'� \ r\ .J '`�1 ` o AOt N=0.01 1 ` i �\ \ < �� / / `� \ I`S_ ) ,N ) - / / \ ?. ° \ L- \ �14, �.% �// ,� \``\ ` .' TITLE _ i./` \� PRE AND POST III \\ \\\\ \ _ ^ :1// / �► Y L ;�\ \\\�\ ) l� \., oET��I�,�O 11111 1 \t\� \: I�I k� t / % i I'.yp( o \\ 38i •. \ �� Tl 1 Ai MIA. i'L7G•Min. i, ���3; DEVELOPED TIME OF CONCENTRATION TR-55 SHEET FLOW EQUATION MANNING'S EQUATION MAPS A =0007(nL)o.e V_1.49r8st ,f IN.341 !Ti 3J n (pr)s sss� where. DEI PROJECT NO:50100457 where. r.everagc velocity(Poi) u.(R)and T,_ _travel time(hr), =hydraulic R n egnal m a/p„ SHEET NO. =Manning's roughness r oefncient(table 3-1) a=cress seciiona flow area Mr) L =flow length(ft) p.=wetted perimeter(fl) Pi =2-year,24-hour rainfall(in) a=slope of the hydraulic grade line(charnel C6.03 . .Slope of hydraulic grade line slope.ft/ft) (land slope,lVn) n=Manning's roughness coefficient for mail channel flow. I c , ' _ _ I _ _ -- —._ -. I . Dewberry' Dewberry Engineers Inc. ,en,alt.Brook on...s+r 200 Glen A,,VA 23060 Phone'so..nn.ATI F.c ao,sso.M. .nw.O.abMF.oa. E PRE-DEVELOPED LAND COVER MAP POST-DEVELOPED LAND COVER MAP ZO I- /../..-' t,‘, .„ •''',..:4, ..,. , , / - --\,1 -•N‘,. ____'Nk- \ ,,‘ 4 /1.7.if lie/// i"--' '1 r ,‘‘,. ., --''' '' 1///// / /- a CD 1-- -V =•,,,"'qM1116..AI % • -Vs ---- .....'.`;‘, \\<•.,,,„:.•„, i p'.kfr ,t, / ,/ , ,..- _ ipovirV-•..„)* ,1*..0 , , .s. N\''%, --. \\\ \ f' fit) # / `/z- ili .-� \'C� ` •+ / O `_ / z QQ �` / / : � 1� � /- I z/ / - : " r. �.�."" '�I/ . 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'.-.I� /� - `!3 ///, D7/23,19 JRG 1O01C DOCUMENTS 1`111 \\ \ t _ /( 'j' No. DATE BY Description IV � \A�V \�A\�� �\\ ��1 I �� ._ /�i /. ��////i{llV/` ��1�� � � A\�� ��\�� / �� i� !� / / �- iiii �/` II Ie \`\\ ��\\ 11\ \�\ >>-_ I _ / / / ////Ji/ III , `� \\�� I\\� \ �� �' _ ///_��/ DRAwNBv CO ll I I ('i' \ E\ 11 \\1I �\11..,I , \ \ ,--� �.� I `� - , // �`�"- j ' I�1+�, \ e \ \ ��i o l , \� /� :�, •�1 i ce'' %ii% 1 \`.. . 1( J. _ it 1�< .. , •\ ` . /� l�i1 \ \ I(-., if, ( �.�(�UZ\ �1 1� \ i I /, , I/ I� - _Y APPROVED BY FCP LEGEND TOTAL AREA-9.75 AC LEGEND TOTAL AREA-9.75 AC CHECKEDBY DMK TITLE =' 11 MANAGED TURF = 8.12 ACRES f�III MANAGED TURF - 4.87 ACRES • PRE AND POST • ////// IMPERVIOUS COVER — 4.88 ACRES DEVELOPMENT LAND V .,,, IMPERVIOUS COVER = 1.63 ACRES USE MAPS A • DEI PROJECT NO:50100451 SHEET NO. C6.04 I I c I x2 I 'e I .1 to Dewberry' WATER QUALITY NARRATIVE NUTRIENT CREDIT AGREEMENT SUMMARY- Dewberry Engineers Inc. THE TOTAL DISTURBED AREA OF THE SITE IS 9.75 ACRES. THROUGH THE USE OF THE VRRM SPREADSHEET, IT TOTAL REOUIREMFNT 690 LB/YR 0305 taws Aroah Dnv..suds 200 WAS DETERMINED THAT A PHOSPHORUS LOAD OF 6.90 POUNDS PER YEAR NEEDED TO BE REMOVED FROM Glen linen.VA 20080 THE SITE. THIS WAS ACCOMPLISHED THROUGH THE PURCHASING OF STORMWATER CREDITS AND THE NUTRIENT CREDITS 5.80 I B/YR Phone.6.200.7057 u:60A 290.7926 USE OF 1.1 LB/YR OF CREDITS FROM THE GOLF COURSE PROJECT (WP0201800016). FROM WPo201800016 1.10 LB/YR ww we w.ee .rry.mm E SHAEFER NUTRIENT BANK Z DEQ Vir0iok Rwalfiliftsrion Method Re•Derrbpment Comptiuece Spreadsheet•Version 3.0 ---- Permit Applicant:University of Virginia Foundation ` 0 2011 iMPSYMads 4e6e _ c/o Cameron Palmore,P.E.,LS O FO Sp.d%pebn ❑20130nR.elde.deeM Sp.ollollpw ►ref.R Nairw:�- .. CLFAR Alt wi.tar4 vMwe _... _ Dewberry ILinear Development limpet? : wk.r4ue.i - A80S Lake Brook Drive,Suite 200 Z Z Il.l Site Information _.. _ _ - -- -- -_- .-___ Glen Allen,VA 23060 D '2 RE:Nutrient Offset Availability O ffse Post-Development Project(Treatment volumenae datal LoaDisturbed Area(acres) L. --Chedr: -----{-- ---- Ronald Green(Broker) - Q a_ Z 0 c7 IMP Design Use 1011 ads\Specs I I Date:May 3,2019 Z � 0 Z IT Maximum reduction required Coo Z J The sire's net increase in impervious cover(acres)is: 3.15 Lead o lermem*weerNmnaetly7 e/ Project Reference:UVA Foundation Tennis Stadium (F, Z - Port-Development TP load Reduction for Site(Ib/yr)- 6.90 TeetlfNMaI ovaeatpol ./ v Q Z I- 5 Merle Attention:Cameron Palmore P.E.,LS LJ-\ � 0Ore-Relievelopment cr Ia.W Cower Ayr This letter is to confirm the availability of authorised nonpoint nutrient offsets at our Shaefer Nutrient / x CC O r ierrawrcinin sr i e fano/0pm spews We.lend a Bank project located in Goochland County.The Shaefer Nutrient Bank project has received operational L.L _I H Q Sbr�4 TWTl awl-w.taae41ede4b status through the Chesapeake Bay Watershed Nutrient Exchange Program(Virginia Code 62.1-44.19:14 0 U LLJ Z ,� p.m a wl.swraMer.Wnwr.ed 8.12 et seq.)of the Virginia Department of Environmental Quality.Shaefer Nutrient Bank currently has all O D II... a el. erw9ir.y 1 63 pounds of phosphorus offsets and 127.16 pounds of nitrogen offsets available for transfer in the U _ g is approved service area in the lames River watershed. �//�� ��v//�� V) J p Peeintlemlopreentland Carp --- - These offsets were certified pursuant to the Chesapeake Bay Nutrient Exchange Program by Virginia O - AM, so!Solt c us D sub Department of Environmental Quality and the Virginia Department of Conservation and Recreation to w Z O Poiewlopa Soo Iowa-1•91916•2462 - o ro be used as compensation for state or local permit water quality requirements.These offsets have been \ Z 9- polar lvafywwea.warr.b.%arM generated and are transferable according to 10.1-603.8:1 of the code of Virginia.......Tw9la.y-iiYb4pearab •a 4e.r Mad` -,, . 487 e81 � Per your request,the project would like to purchase 5_80 lbs./yr.of phosphorus nutrient credits or 2104 j Ana Check 01L OIC 93 --- } lbs/yr.of nitrogen credits.Shaefer Nutrient Bank upon execution of a credit purchase agreement and • payment shall transfer those credits to the project owner.The 5_80 phosphorus credits or 26_04 ,51 :‘ _ . nitrogen credits will be available for 45 days from the date of this letter. SEAL •.,2.�;j - by Consume Renee COellkleib If we can provide further assistance please do not hesitate to contact me at 804-90B-4171. ii0 / Cl o F.CA... fERON Annual FNMA*Ar. % 43 A506 peer eseib owe i :O .N.PA / E i,Reeadr Event pa6M7 luau tarauopai 5yo 0.02 0.01 o.a OAS Te4Pnep10Poa MD..1..e2 _--" _-- wepotart ass 010 0.22 n25 + - Sincerely, Tote w.�.l MOD./frf 1.86 awweawC..w o.9s 0.95 0.95 0.95 '�Lie.N. 0402035271 /pie Te lewd e4aveM1 0.41 ei lame®m.rex%m hand 0.90 -I-_ w 'Q/9 0�41 4. LAND COVERSUMMARY--PRE'REDEVELOPMENT LAND COVER SUMMARY--POST DEVELOPMENT sOteAL��G Ron Green(Broker) land CoweSser.rarRe haul emu,Summary-Pan(final) lend Cover S✓mmery.Posr tend Cover Summary Post KEY PLAN ere-RePeve ailment tided Adlurbdi P.O 1000n.4 Mew Nperv.ur Post Retereloemeni evil Development New Impetuous --_, Cia.sVDe.e saw Cw.lac..) 0 W 0 00 tare./open Spore Core. J W west/Open Spora x 0 rvi aver IaeN __ _----.__.. w.lhnd RNbnti O.W wrei.e'd enra.dl OOD 000 _._-.. Weighted RNbetn J00 ..J 14 faed 10 0% %rare. 0s %fart. ON -... aapelwf0wert.aw) 8t2. .a7 "eoi+e°"'�t''1Lf 487 a.p.. )Corer M 4.37 SHAEFER NUTRIENT BANK We1wdn%swR 0.22 022 9980a444 lawn n22 W41ned Rellurd 0.22 %M.+.e Turf 75% %M.rpd Turf 5016 .~ %M..+pd Turf 75% e.pw.iasc bewi 1.63 163 F4..NuuC Noes) Mg R txml Cover sew seine.-+wain rasa. 125 --_ SCALE lwreil Permit Applicant:University of Virginia Foundation evess.erw) - _. 0.95 0.95 eerncs.wowl 1.111331.11 _.. cel6°enrw0 0.95 Arras.rvbv0i 0.95 %tne.ra u. 17% 15% _4 %man en.,, %Impervious 251t __ C/o Cameron Palmore,P.E.,LS Total w eeO .Sire Area Total S.I a Area lore's) ed 9.75 6.. N.SW Area lad.) 871 Wow) 850 - ---------- -. Dewberry site no 0.34 0..0 Rareade.e.r er PM env.sir e. GAO - - _ -_.-.... _ _. -- 48051ake Brook Drive,Suite 200 Treatment Volume and L.,. _....._i Treatment Volume and Nutrient Load _ Pre-R.we.iow.wm li..a nt Volume a.tiSwyww8 tro«pownene _. ew„�rinpn..s Glen Allen,VA 23060 lacmhl 0I179 out l3l T. lYwa n47S6 Treatment 0.2183 volume Q2573 REVISIONS I°eW r I.r.hl Vm. m laaem RE:Nutrient Credit Pricing -- ------ -- --_ Date:May 3,2019 - - elopers,t an ailment Po st-0Peveba.n.nl lnwm.nt vow.. 12,f06 9.S10 ireIn..,, 9.510 treatment mmrue 11,20elack rn IaOc rut .u6 Neu two B ------- --- Attention:Cameron Palmore,P.E.,LS Pr.-R.D.vetwnwat reseed ?WI Po. Post `ve'OP'"`°` Poutse.er.ewmre Saud ProjectReference:UVA Foundation Tennis Stadium 3 05 10 19 ACO REVISION 3 7.61 5.90 D.w eomun 11 WY ma aim 7, 534 7.04 / / laVM (Wm a rye/n)• P.M) 2 02/22/19 ACO REVISION 2 A..ada.aracre a roww..rw.e 1 Ot/03/19 ACO 1007(DOCUMENTS N. p.. 07 23 18 JRC 1007E DOCUMENTS ni e7.1 4A era Mr.Palmore, / / No. DATE BY Description ...ix n lace IWasTI Ida harretran e.ewr Pursuant to your request to obtain phosphorus credits for the above referenced project,Shaefer p is..evwr us*,towe..e...rwiwwam9P.ed.4 as ]67 w.iaw r.. w% Nutrient Bank has the available credits necessary for this project.A price of$ .00 per credit for a vws...or.=ir...ww.t t%o.aiimmu.q j total of$55,100.00 will be required to purchase the nutrient credits. DRAWN BY CLG �� �844910/8 re laud to This price shall be available for a period of 45 days from the date of this letter. - APPROVED BY FCP re WWI Reduction h.A.tburione.badw.w adw7araa Sind raw.6bWVawn w..or note' Requiredb 1.20 ReaNkad for i.e.. 5.71 Let me know if this is acceptable and I will forward a<redit purchase agreement for this transfer. CHECKED BY DMK aaRaoawerew.edTorieakmerdass COW erWdwad Ara InweMar.e Me RM7rl R4hA .e.41oweawpharad.wr.M bp4dhw4xrM ocrgpr prima ow,of -• - -_ _-__ _. --. a.aerwae/ TITLE Thank you. railaki, no ted. new`..aed ancws w"r /a wt. WATER QUALITY boa...r.ail eg789e40. • Post'Development Requirement for Site Area NARRATIVE AND CALCULATIONS Ron Green(Broker) TP Load Reduction Raquhod Db/yr) 6.90 A Nitrogen Loads(Informational PYI/OMS OM DEI PROJECT NO:50100451 teen.>..uw..mle toad RUM 5445 O0011-_'L_&lYrernw60R i 9W SHEET NO. 1-- -L-__ I laver) 1. _. C6e05 4111 Dewberry` STRUCTURE DRAINAGE AREA MAP RUNOFF REDUCTION & DRAINAGE MAP Dewberry Engineers Inc. e805 lake O,00k Or..,Sue.200 ,.,,, ,, /'‘ / Tr/ ' ' / \ \ \TT'''.•-•11- ‘r'</.- ' / \..,\Ss „ '1,k \\\\\ 2 /7///,,/—// 2Pbone 1306 90 7957 Fax BOA 200 MD '.7°.*° .,..‘'`‘.-'-' `, ., , \'' ' ''Sk .- ' /77. 7/ 7 ////// -/‘..- N " .' ' , N•‘. ,-„,, •,\, ,, „ , . ,. „,,..„.. „ •-: air ' ..'\''' ".,N:\-- ///,, , .,--- — •,Viiii...4. . 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I I / \ \\ \ ` " .40,..a11:4A1-1-1-t=l-gt f /if(/ 7r, \ . cc 2 0 ,.. , G , - , •t, I1{W5 r ROOF DRAW TO M M r0.011 /' I \\ V)1 I \ \\\\ \\\ \ \\• ,/ 4Ai ?` 1' II \\ \ \\\\\\\\\\\\\AL -LLI Z \ 51\ ev ( \ / \\\�\\�\ \� / 4 \- / - r1=71� � I'�1^`�1�:�1 ,1\ \\ r\�\���\\� , p SLCT DRAIN A TO STY 1{ .�\ J .-os. \ m u a, on`�• a.0.09 (\\\ \\ t i 9� . 1' ' qq �,'�1�.1 \ \ e,,, i.4y /; \ / Y CA=o._)AC. .I rn� A 01] \` \� \�\�\\\\ \ / {/ � 1-i101. 11t LI, h. \ �\ \ \ \\\ \ SEAL t* ,pz { -o.e5 MI 15 ♦ r Ir ill 1 II a LI a p�: \ \ \\\\ t* amo.oe , ••TO' 1 °°:aa3 \ \ \�\� A. /•. `11. 1' II-1 1 L;n•:-e1. r• \ \\ 1 m w N. 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Patl _ I lie ,yy //�/ \\, asp \ ` / ,, ...., „ f \� f .._- - I •=D ' __ / \\ a-rno.n Ac. \ .,° J\ t\'1, \ .\✓ .li'1 11'"x ri3%%% iii/i%%m%%////I� I L� •r'' //"I' /�/ i\ `\\51s.,0 a-a xanc.�. \ ® \\\\ r t :, — - — — =n=.IL 1= •'•�� /// _ RUNOFi / a-o.n Ac. m za \ ./ `\ \ \ \ \\ �•1}��Ls�1 \ /` �I,/�//,/J/ 'JI/ aLi-•',�1.'-. cn�/ /// '/ // ---------- UN AWED,scorn » =o.ee w• ooiuAc �, �. • _ 4 \ \ \ N 1✓ �I !/�.- / / a=,s.Ac. / \ f / SCALE Y p.A1 _ " \ _ / siu is TN 1s \ Y o'/ _ ��I� �. /// / .r;, c / f \ T—y — =�� r' w as I.C. oA ,a , �\,`�' / Y! �� f.—— m. m u \ \\�- ; a~ t, Ir ;Tay / \ \\z / i // E: ,- = 6D , `\ / ! _ >3 ' 9AA a �, -,�- L'It \ NiRyr,�, A �. '1 -n-1 a ` `` y / / /*� / ` \�. �� � �� • OA D� / I /rnz1 ,\ •,, \\ \\ \.- —'�1:-N' �=" 1-11 ST' ' J .../ -/ /i / u 12 D \\\ ` ��` y �i;;' ."Rie- ' \ ^i Al\�\ �:1� `... •,�wII- / ` �r',`• `v�'< ''�/ RBBSIONB ` . 1 C t)\ 1\ uo uNco as E \ ,1 I1�, \ \ \\���r r), {{ %\\�/ J = a ,s.OM, J, , /�/ )) \111{( \\ \�\1\ \ IV/7 ) \ /, �\ � /f/ \\\\\\\ 11I J f, / / \ ;✓ , /%1 11 I\ ` � \\ \ \ I 1 \\ - \ •-4/ DETENTION POND / �//�/ / � %/// \ \ 1 I F \\ \\ ? \/ I TOTAL ACREAGE: 7.87 AC. �111 i\�, \ 1, I1 \ \\\\ c�`\ ClT / / I �•''19�`�' 1'14 4\`�( 1 1 \ \ _ A� � / TOTAL IMPERVIOUS N 74):): 4.56 AC /'� 3 OS/10/19 ACO REVSON 3 fff T -\\XX I \\ / / �TDTAL PERVIOUS CN74 3.31 AC. // ,._._/� 2 02/27/19 ACO REVISION 2 l ' 1 \\ / �// f (t/1 l '�'' / I 1` I ( \\ / ', ,' 1 1 ) / /(/ i I f ` .\ \,� .\1 1 l 1 \\\-� i.J--, . l ) l' �. /,/,, —I ,\ 'I y1 /�/ /�),'1 I I t,,' 1 ,1,\,A .T �. / .\v1:1,, . 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TOP OF fL1MFlN.wS'WL / '1 �-- / 543\ / _- HDPE TRASH RACK Dewberry Engineers Inc. ___ _ - - 542 \ -. "3:, /��M�\ 1wslewe Brook ome.sine zoo It -----�---�._.___'.�c__ ,� \ \�70. 54 - ./�.....\. G.Arm VA 23060 Far,eoa.zso roisze' \ / / V '/ �" __� Ss1 RISER CREST I HIIIII,1, ...w.ay..e.rry.corn E \ N \ / '`�_ _� \/ --- - :.. ff' ELEV 536. try-'3 zs c�sy \ \ 'N il\ / -- _ �- .s..` /.- / _.�" `T' OVERHANG BY ,o Q f- 48.SQUARE p1I IIIM z. • _-//1 / 4 , e. ..... , ›_-_ 0 .___ .. , -,,.., ________ \ ,_.... ,...... ' i) \ '� -- • li;oe / \ . \�\ �` \ --'/ y ' I 1 '/ •/ l /PROP.VARL STQRMWATER MANAGEMENT BASIN RISER(SIDE VIM 0) u_ o ,...,,,,,,,,,...,..,...:,„, ...__..t.:7 0 `_ ---� _ �, ``� \ ` __,/ / II { f' RE MAINTENANCE / / M Morro 9rxc Z O 1 �^�� \\\ _____,..\-,--.-- ; / \ \� BUILDING ADDIfTION / / �.--', 111 z \.\ `„ tte _.T ! •�• '`' • PROP.VARIABLE WIDTH / / OUTLET Z I- '-1 ` ,/ \\ /�/J •/ �EMGE TENT // / iiik .../ D / 36�RCP / \ />\ f /......, / ....... SEAL 1L�• �' / \ _ ( / % / u PALMORE 5'S 1 I 1 I � 1. \ \ \' S:' - � ='-=-c'I / // // / // Lie.No.0402035275y DETENTION BASIN: SECTION A-Att A • ``tid. `,,..'� d t ��NIweN4'� 550 550 ?"�.: ...: ., -.:•;.��::.: KEY PLAN C ------ _-_�_,____�_____.._____--_ _-- - ------------ 5'ORIFICE • 545 --___ --_- _--_ -___-______ 545 STORMWATER MANAGEMENT BASIN RISER (PLAN VIEW) rr30'.QVAl ____E____--- _ TOP OF SWM-1_ NOT TO SEMI ___ -.... WALL HOPE EXISTING GRAD W/l"RASH RACi7 ^- a-s36ro' - -TOP_ELEV._539 00-YR WSE= 537.85' SCALE 540 \ TOP WIDTH = 5.0',f 0-YR WSE- 537.27' • �` .. 540 8' 0' 4' e' - f�TOP OF DMA SETTLED HEIGHT lini N ____ _/ __ -YR WSE = 536.60' \ pERTH;sPTDFICA1rnNS _POND T AND F1LL - / . HORIZONTAL SCALE 535 535 I• � - / "\`` PROPOSED GROUND ---- T` __ REVISK)NS 1-EXISTING ING GROUND __________ EMBANKMENT CUTOFF TRENCH SHALL.-Allt _ _ _ _____�_ CONSIST BELOW PIPE, WHICHEVER IS DEEPER. -- ______ N I OFOR MAL TERIAL RC M UN2487 ' MIN. BELOW EXISTING GRADE OR -- - EMBANKMENT SUBGRADE AND FILL THE TRENCH MUST EXTEND AT LEAST 1 530 PROPOSED GRADE A.THICK_-. 0.05%, SLOPE�---- 530 SHALL BE PLACED AND COMPACTED FOOT INTO A STABLE: IMPERVIOUS LAYER ID CLAY LINER ........ AS PER THE SPECIFICATIONS. OF SOIL AND HAVE A MINIMUM DEPTH - - --- -- - DEBRIS RAC*-{TYP - OF 2 FEET. -___ - 36'RCP---____-- 3 05/10/19 A00 REVISION 3 _.. . ----_. _._.-- --..._ 5.0'D1A-ORIFICE �� -0N--m.-531.50, `50• CROSS-SECTION B-B 2 02/27/19 AGO REVISION 2 - -- - NOT TO SCALE 1 01/03/19 ACO 100E DOCUMENTS 525 525 - 07/23/18 JRC 100E DOCUMENTS STORMWATER BASIN LLBN80IENT SECTION 524 --. 524 No. DATE BY Description 0+00 0+50 1+00 1+50 2+00 2+50 STAGE-STORAGE CALCULATIONS NOTES: DRAWN BY CLG 1. FILTER FABRIC SHALL BE MIRAFI 140N OR APPROVED EQUAL. APPROVEDBY FCP - V=h/3'[Al+A2♦SQRT(A1'A2)1 DETENTION BASIN OUTLET STRUCTURE 2. FOREBAY MIL PER ASTM WALL D-248751 FILL OSHALLL BEPLLACED1 AND CNG OMPACTED POND POND 1 AS PER SPECIFICATIONS CHECKED BY DMK Ares Elevation Area Ir r.Depth Inc.Volume TOTAL VOLUME .ItR acres R acre-tt wo-R cu.R DRAINAGE TOP OF DESIGN DESIGN FREEBOARD WATER TABLE TOP OF CLASS I RIP-RAP TITLE SWM AREA OMI 10-YR 100-YR 100-YR PRE-TREATMENT ELEV. STRUCTURE STRUCTURE MIN. DEPTH= 3.3' 0 531.5 0.00 0.00 0.00 0.00 0.00 WSE WSE WSE METHOD TYPE 0� (PERPENDICULAR TO BERM) 1039 5320 0.02 0.50 0.00 0.00 173.17 DETENTION POND 6960 534.0 0.16 1.00 0.15 0.22 9760.78 (AC) (FT) (FT) (FT) (FT) (FT) (FT) TOP OF 539.00• 6960 53/.0 - D.16 ,.00 os o.22 9760.76 _ CALCULATIONS dr, 8058 535.0 0.18 1.00 0.17 0.40 17263.08 1 7.87 539.00 537.27 537.85 1.2 FOREBAY N/A SWM-1 536.50 : 0 10214 536.0 0.23 1.00 0.21 0.61 28377.80 . -l+ -2 . 11816 537.0 0.27 1.00 0.25 0.86 37383.08 •,F "'`Fa A 1.1519 538.0 - 0.31 1.00 0.29 1.15 50047.39 .'s .+,. +..». 15361 539.0 0.35 1.00 0.33 1.48 64484.23 POST-CONDITIONS DISCHARGES: 1 YEAR = 1.34 CFS FILTER FABRIC FOREBAYI 2 YEAR = 3.19 CFS NOT TO SCALE DEI PROJECT NO:50100451 Area Elevation Mea Ina.Depth Inc.Volume TOTAL VOLUME 10 YEAR = 36.61 CFS 100 YEAR 82.38 CFS acre SHEET NO. .R. R s R aaeat weft al FOREBAY BERM SECTION 1009 536.0 0.02 0.00 0.00 0.00 0.00 1407 F 537.0 0.03 1.00 0.03 0.03 1202.50 1862 538.0 0.04 - 1.00 0.04 0.07 2831.70 C6.08 2373 539.0 0.05 100 0.05 0.11 4944.04 I ) L ) 0 L y I J le Dewberry' WATER QUANTITY NARRATIVE 1-YEAR STORM CALCULATIONS 2-YEAR STORM CALCULATIONS WATER QUANTITY CONTROL: HydroCAD (DetentionPond) Type II 1 Rainfall=3.04' Dewberry Engineers Inc. IN ORDER TO ACCOMMODATE THE ADDITIONAL FLOW GENERATED BY THE ADDITION OF IMPERVIOUS AREA -UVAF Tennis Facility T HydroCAD-UVAF Tennis Facility(Detention Pond) Type II 24-hr 2 Rainfall=3.68' 6805 tare Brow,on.e Slid 200 ON THE SITE,A DETENTION BASIN WITH FOREBAY WAS DESIGNED. THE OUTFALL FOR THE DETENTION Prepared by Dewbeny Pnnted 2/26/2019 Prepared by Dewberry Printed 2/26/2019 Glen Allen VA 23060 BASIN WILL IMPLEMENT AN OUTFALL STRUCTURE THAT HAS ONE (1) 5' DIAMETER ORIFICE AT 531.50' HydroCAD®10.00.21 sin 05760 02018 HydroCAD Software Solutions LLC Page 1 HvdooCAD®t0.00.21 s/n 05760 02018 HydroCAD Software Solutions LLC Paoe 4 FTonew 04290N290 e' AND A TOP AT ELEV. 536.50'. Time aPan=0.00-48.00 hre,dt=0.01 hre,4801 prints Time span=0.00-48.00 rs,d<=0.01 hB,4801 points a..rlevAcr,corn E Runoff by SCS TR-20 method,UH=SCS,Weighted-CN Runoff by SCS TR-20 method,UH=SCS,Weighted-CN THROUGH THIS DETENTION,THE FLOW RATES OF WATER LEAVING THE COMBINED SITE WERE REDUCED TO Reach routing by Stor-Ind+Trans method-Pond routing by Slor-Ind method Reach routing by Stor-Ind*Trans method-Pond routing by Stor-Ind method Z BE LOWER THAN THE PRE-DEVELOPED FLOW RATES. CHANNEL PROTECTION REQUIREMENTS FOR A Pond 1P:DetentionBasin PeakEler-535.90 Storage=25.864d Inflow=23.12cfs 1.216of Pond 1 P:Detention Basin Peak Elev=536.80'Storage=33.283 d Infte 0 '- ow= MANMADE CONVEYANCE SnitM (9VAC25-870-66.1) WERE MET WITH THE ENERGY BALANCE EQUATION OuMow=1.34 crs 1216 a1 ou6bw=3.13.19 cfs 1.596 at _ AND FLOOD PROTECTION REQUIREMENTS WERE MET BY REDUCING PEAK FLOW RATE FOR THE 2-YEAR I- J 24-HOUR STORM AND 10-YEAR 24-HOUR STORM. Q ♦rS C]) THE CHART BELOW SUMMARIZES THE PRE-DETENTION AND POST-DETENTION FLOW RATES FROM THE o 0 Z SITE. THE POST DEVELOPMENT SITE AREA IS 50% PERVIOUS AND 50% IMPERVIOUS.THE HYDROCAD HydroCAD-UVAF Tennis Facility(Detention Pond) Type 1124-hr 1 Rainfall=3.04- HydroCAD-UVAF Tennis Facility(Detention Pond) Type If 24-hr 2 Rainfall=3.68" Z Z W CALCULATIONS ON THIS SHEET AND SHEET 6.10 SHOW THE ROUTING OF THE DETENTION BASIN FOR THE Prepared by Dewberry Printed 2/2612019 Prepared by Dewberry Panted 2/26/2019 1, 2, 10 AND 100 YEAR STORMS. HydroCAD®10.00-21 s/n 05760 02018 HydroCAD Software Solutions LLC Pace 2 HydroCAD®10.00-21 sin 05760 02018 HydroCAD Software Solutions LLC Page 5 D Y 2 Summary for Pond 1 P:Detention Basin Summary for Pond 1 P:Detention Basin O Q (,) - OUTFALL 1 PRE-DEVELOPMENT DETAINED (CFS) - 3 Inflow Area= 7.870 ac,57.94%Impervious, Inflow Depth= 1.85' for 1 event Inflow Area= 7.870 ac,57.94%Impervious, Inflow Depth= 2.43- for 2 event Q Z o c7 (CFS) Inflow = 23.12 cis @ 12.00 hrs,Volume= 1.216 of Inflow = 30.03 cfs @ 12.00 hrs,Volume= 1.596 of 0 O Z 1-YEAR STORM 16.15 4.99 outflow = 1.34 cfs a 13.04 hrs,Volume 1.216 af.Atten=94%,Lag=61.9 min Outflow = 3.19 cfs @ 12.47 hrs,Volume= 1.596 af,Atten=89%,Lag=27.8 min Z Primary = 1.34 cfs @ 13.04 hrs,Volume= 1.216 of Primary = 3.19 cfs @ 12.47 hrs.Volume= 1.596 of Z (n O V 2-YEAR STORM 23.03 6.75 Routing by Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs Routing by Stor-Ind method,Time Space 0.00-48.00 hrs.dt=0.01 hrs Q Z y Peak Elev=535.90'@ 13.04 hrs Surf.Nea=10,1107 sf Storage=25,864 cfPeak Elev=536.60'@ 12.47 hrs Surf.Area=11,180 sl Storage=33.283 cf � < C.) 10-YEAR STORM 44.81 40.26 5 fl D O Rug-Flow detention time=203.4 min calculated for 1.216 of(100%of inflow) Plug-Flow detention time=230.6 min calculated for 1.596 of(100%of inflow) _ X cc Center-of-Mass det.tine=203.4 min(1,020.2-816.8) Center-of-Mass del.time=230.6 min(1.039.6-809.0) LI_ -I w En Volume Invert Avail.Storage Storage Description Volume Invert Avail.Storage Storage Description 0 0 Z 0 #1 531.50' 64,969 d Detention Basin(Prismatic)Listed below(Recalc) #1 531.50' 64,969 d Detention Basin(Prlsmaticpsted below(Revak-) 0 D Elevation Surf Area Inc.Slore Cum.Store Elevation Surf Area Inc.Store Cum.Store 0 (feet) (sg-fi) (cubic-feet) (cubic-feet) (feet) (Sq-fl) (cubic-feet) (cubic-feet) 531.50 0 0 0 531.50 0 0 0 532.00 1,039 260 260 532.00 1,039 260 260 w Z 0 533.00 5,929 3,484 3,744 533.00 5,929 3,484 3,744 534.00 6,960 6,445 10,188 534.00 6,960 6,445 10,188 > Z 535.00 8,058 7,509 17,697 535.00 8,058 7,509 17,697 _ w 536.00 10214 9,136 26,833 536.00 10214 9,136 26,833 Z I- 537.00 11,818 11,015 37,848 537.00 11,816 11,015 37,848 538.00 13,532 12,674 50,522 538.00 13,532 12,674 50,522 D 539.00 15,381 14,447 64.969 539.00 15,361 14,447 64,969 Device Routing Invert Outlet Devices Device Routing Invert Outlet Devices SEAL �O�d/ y= #1 Primary 527.46' 36.0"Round Culvert #1 Primary 527.46' 36.0"Round Culvert - �,i - L=85.7' CPP,square edge headwall,Ke=0.500 L=85.T CPP,square edge headwall.Ke=0.500o F.CAbfERON Inlet/Outlet Invert=527.46'!526.1 T 8=0.0151'f Cc=0.900 Inlet/Outlet Invert=527.46'/526.17' S=0.0151'f Cc=0.900 n=0.013,Flow Area=7.07 sf n=0.013,Flow Area=7.07 sf ° PA.LMORE #2 Device 1 531.50' 5.0"Vert.OrificelGrate C=0.600 #2 Device 1 531.50' 5.0"Vert.Orifice/Grate C=0.600 Z,4 Lic.No.0402035275�. #3 Device 1 536.50' 16.0'long Sharp-Crested Rectangular Weir 2 End Contraction(s) #3 Device 1 536.50' 18.0'long Sharp-Crested Rectangular Weir 2 End Contrachon(s) 5RO e nary OutFlow Max=1.34 cfs©13.04 hrs HW=535.90' (Free Discharge) Primary OutFlow Max=3.18 cfs @ 12.47 hrs HW=536.60' (Free Discharge) '�•tJ %'a>(Q Gtir =culvert(Passes 1.34 cfs of 89.69 cis potential flow) t2-Culvert(Passes 3.18 cfs of 94.09 cis potential flow) 'tiry Aµ Hs�� t2-OR rp-Crete(Orifice Controls 1.34 cfs @ 9.861ps) }-2=Odfce/Grate(Orifice Controls 1.45 cfs @ 10.65 fps) -3-Sharp-Crested Rectangular Weir(Controls 0.00 cfs) 1-3=Sharp-Crested Rectangular Welr(Weir Controls 1.73 cfs CO 1.05 fps) KEY PLAN C11) DAND HydroCAD-UVAF Tennis Facility(Detention Pond) Type 1124-hr 1 Rainfall=3.04- HydroCAD-UVAI SWM DA Post Detention Basin Prepared by Dewberry Printed 226/2019 Prepared by Dewbel HydroCAD®10.00-21 s/n 05760 0 2018 HydroCAD Software Solutions LLC Page 3 HydroCAD 9 10.00-21 r Pond 1P:Detention Basin HydroeraDO SCALE a Okra I Inflow Area=7.870 ac te - Peak Elev=535.90' ae Storage=25,864 cf 2. 1' I, REVISIONS I' iw B a 2 Tin Subcal Ream 'Pond Link Rooting grogram for ayeroCAO-WAY Teams Facility loaonuse Poor.Por. 3 05/10/19 ACO REVISION 3 2/d� 0nnl01 a o i a a II io +z a ie ie 20 azs s az >. x >a ao .2 u 46 .s 0 2 4 e # rrvar,C 100 w + m is wr �Solt.saumeuc Two Reel 2 02/27/19 ACO REVISION 2 1 01/03/19 ACO 1o00 DOCUMENTS 07/23/18 JRC 100%DOCUMENTS /No. DATE BY Description DRAWN BY CLG APPROVED BY FCP CHECKED BY DMK TITLE DETENTION POND CALCULATIONS A DD PROJECT NO:50100451 SHEET NO. C6.09 1 I I ., I -+ I ..r 9 Dewberry' Dewberry Engineers Inc. MDS IS.Brook Dem suite 200 23060 10-YEAR STORM CALCULATIONS 100-YEAR STORM CALCULATIONS Glen Phone:6'°".1107 Fart 604290.7920 rww.bybenl'.r=m E HydroCAD-UVAF Tennis Facility(Detention Pond) Type 1124-hr 10 Rainfall=5.56" HydroCAD•UVAF Tennis Facility(Detention Pond) Type 1124-hr 100 Rainfall=9.73" Z Prepared by Dewberry Printed 2/26/2019 Prepared by Dewberry Printed 2/26/2019 HydroCAD®10.00-21 In 05760 0 2018 HydroCAD Software Solutions LLC Page 1 HydroCAD®10.00-21 sin 05760 0 2018 HydroCAD Software Solutions LLC Pace 4 O I- - Time span=0.00-48.00 hrs,tit=0.01 hrs,4801 points Time span=0.00-48.00 hrs,d1=0.01 hrs,4801 points Q J Runoff by SCS TR-20 method,UH=SCS,Wegmethod, Weighted-CN Runoff by SCS TR-20 UH=SCS,Weighted-CN V) Reach routing by Star-Ind+Trans method-Pond routing by Stor-Ind method Reach routing by Stor-Ind+Trans method-Pond routing by Stor-Ind method Q 0 I-" Pond 1P:Detention Basin Peak Etev=537.27 Storage=41,108 cl Inflow=50.39 cis 2.757 al Pond 1P:Detention Basin Peak EIev=537.85'Storage=48,519 d Inflow=88.63 cfs 5.034 of Z Z ii i Outflow=36.61 cfs 2.757 of Outlow=82.38 cfs 5.034 of D Y 0 CC D - HydroCAD-UVAF Tennis Facility(Detention Pond) Type ll 24-hr 10 Rainfall=5.56" HydroCAD-UVAF Tennis Facility(Detention Pond) Type 11 24-hr 100 Rainfall=9.13' - a. Z O = Prepared by Dewberry Printed 2/26/2019 Prepared by Dewberry Printed 2/26/2019 Q ❑ co HydroCAD®10.00-21 s/n 05760 02018 HydroCAD Software Solutions LLC Pace 2 HydroCADY 10 00-21 s/n 05760 02018 HydroCAD Software Solutions LLC Pace 5 -Z 0 O Zcc Summary for Pond 1P:Detention Basin Summary for Pond 1P:Detention Basin Z Ci) 0 g ' < Z H y Inflow Area= 7.870 ac, 57.94%Impervious,Inflow Depth= 4.20" for 10 event Inflow Area= 7.870 ac,57.94%Impervious, Inflow Depth= 7.68" for 100 event CC < (,) Inflow = 50.39 cfs @ 12.00 hrs,Volume= 2.757 of Inflow = 88.63 cfs @ 12.00 hrs,Volumed 5.034 at D I Outflow = 36.61 cfs @ 12.07 hrs,Volume= 2.757 af,Atten=27%,Lag=4.3 min Outflow = 82.38 cfs @ 12.03 hrs.Volume= 5.034 af,Atten=7%,Lag=2.0 min - lwu Cl. CC -1 Primary = 36.61 cfs @ 12.07 hrs,Volume= 2.757 of Primary = 82.38 cfs @ 12.03 hrs,Volume= 5.034 of u_ J X cc cc Routing by Stor-Ind method,Time Spen=0.00.48.00 hrs,dt=0.01 hrs Routing by Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs 0 U Z O Peak Elev.537.27'@ 12.07 hrs Surf.Area=12,280 sf Storage=41,108 d Peak Elev=537.85'@ 12.03 hrs Surf.Area=13,276 sf Storage.48,519 Cf O D Plug-Flow detention true=175.3 min calculated for 2.756 of(100%of inflow) Plug-Flow detention tine=131.7 min calculated for 5.033 of(100%of inflow) 0 Center-of-Mass Oct.time=175.3 min(968.9-793.6) Center-of-Mass del.time=131.8 min(909.1-777.3) - CO n0 Volume Invert Avail.Storage Storage Description Volume Invert Avail,Storage Storage Description w Z O #1 531.50' 64,969 d Detention Basin(Prismatic)Listed below(Recalc) #1 531.50' 64,969 cf Detention Basin(Prismatic).isted below(Recalc) Elevation Surf.Area Inc.Store Cum.Store Elevation Surf.Area Inc.Slore Cum.Slore > Z r (feet) (sq-ft) (cubic-feet) (cubic-feet) (feet) (sq-S) (cubic-feet) (cubic-feet) - I.LI 531.50 0 0 0 531.50 0 0 0 Z I"' 532.00 1,039 260 260 532.00 1,039 260 260 D 533.00 5,929 3,484 3,744 533.00 5,929 3,484 3,744 534.00 8,960 6,445 10,188 534.00 6,960 6,445 10,188 ksi y. 535.00 8,058 7,509 17,697 535.00 8,058 7,509 17,697 SEAL ykd/ - 536.00 10,214 9,136 26,833 536.00 10,214 9,136 26,833 O� /��v .'fy, 537.00 11,816 11,015 37,848 537.00 11,816 11,015 37,848 , C 538.00 13,532 12,674 50,522 - 538.00 13,532 12,674 50,522 o F.CAMERON 539.00 15,361 14,447 64,969 539.00 15,361 14,447 64,969 V PALMORE �� Device Routing Invert Outlet Devices Device Routing Invert Outlet Devices Lic.No.0402035275 F #1 Primary 527.46' 36.0"Round Culvert #1 Primary 527.46' 36.0"Round Culvert �J r L=85.T CPP,square edge headwall,Ke=0.500 L=85.T CPP,square edge headwall,Ke=0.500 O'1 7//0f 9 (r� Inlet I Outlet Invert=527.46'!526.17' S=0.0151'r Cc=0.900 Inlet/Outlet invert=527.46'!526.17' S=0.0151'7 Cc=0.900 r d/oNALti,�k n=0.013,Flow Area=7.07 sf n=0.013,Flow Area=7.07 sf +elessssle�k #2 Device 1 531.50' 5.0"Vert.Orifice/Grate C=0.600 #2 Device 1 531.50' 5.0"Vert.Orifice/Grate C=0.600 KEY PLAN #3 Device 1 536.50' 16.0'long Sharp-Crested Rectangular Weir2 End Contraction(s) #3 Device 1 536.50' 16.0'long Sharp-Crested Rectangular Weir 2 End Contraction(s) C primary OutFlow Max=36.55 cfs @ 12.07 hrs HW=537.27' (Free Discharge) FFrimary OutFlow Max=82.27 cfs @ 12.03 hrs HW=537.85' (Free Discharge) L-Culvert(Passes 36.55 cfs of 98.11 eft potential flow) t=Culvert(Passes 82.27 cfs of 101.48 cfs potential flow) 2=Orifice/Grate(Orifice Controls 1.55 cfs @ 11.36 fps) 2=OriflcelGrate(Orifice Controls 1.63 cfs @ 11.93 fps) 3=Sharp-Crested Rectangular Weir(Weir Controls 35.00 ds @ 2.87 fps) 3=Sharp-Crested Rectangular Weir(Weir Controls 80.64 cfs @ 3.80 fps) HydroCAD-UVAF Tennis Facility(Detention Pond) Type 1124-hr 10 Rainfall=5.56" HydroCAD-UVAF Tennis Facility(Detention Pond) Type 1124-hr 100 Rainfall=9.13" SCALE Prepared by Dewbeny Printed 2/26/2019 Prepared by Dewberry Printed 2/26/2019 HydroCAD®10.00-21 sin 05760 02018 HydroCAD Software Solutions LLC Page 3 HydroCAD®1000-21 sin 05760 02018 HydroCAD Software Solutions LLC Paso f - Pond 1P:Detention Basin Pond 1P:Detention Basin - HYdroprWs Nydrogreph ■eno ■Prmery :e6ho. Inflow Area=7.870.ac Inflow Area=7.870 ac Peak Elev=537.27' . Peak Elev=537.85' REVISIONS .p k� Storage=41,108 cf Storage=48,519 cf 3S J OS/ta/19 :CR: REVISION31 2 02/27/19 C REVISION 2n11 01/03/19 C 100E DOCUMENTS is 07/23/18 100E DOCUMENTS __ e ` Na. DATE BY Description 0 2 4 e e 10 12 14 10 1e 20 22 24 26 m 30 32 34 36 30 40 42 44 46 ad 0 x 4 • e 10 12 14 1! to A II r xe xe ]p)Z st ie 3E 40 42 M b b - Te=6e..1 '8=4 Ow.* DRAWN BY CI G APPROVED BY FOP CHECKED BY INK TITLE DETENTION POND CALCULATIONS A DEI PROJECT NO:50100451 - SHEET NO. C6. 10 Section 6. Pollution Prevention Plan. (reference County Code 17-404 and State Regulation 9VAC25-880-70 part II section A.4) A. Plan showing pollution activities and prevention practices (Provide a reduced l 1x17 copy of a site plan on which all of the following activity locations are clearly marked. Keep this plan up-to-date with ongoing site changes and inspections.) Please see the Pollution Prevention Plan after Section 6 of this SWPPP. Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County B. Sources of Pollutants,locations, and prevention practices Pollutant,or Pollutant Prevention Practices, Generating Activity Location on site Control Measures Follow Erosion and Sediment Control Plan.Dispose of Clearing,grading, excavating, and Land disturbance area clearing debris at acceptable disposal sites.Seed and mulch, unstabilized areas or sod within 7 days of land clearing Pavingoperations Roads and driveways Cover storm drain inlets and use drip pans and absorbent/oil P Y dry for all paving machines to limit leaks and spills Concrete washout and cement Direct concrete wash water into a leak-proof container or Current location shown on plan leak-proof settling basin that is designed so that no waste overflows can occur Structure construction, stucco, Enclose or cover material storage areas.Mix paint indoors in a containment Structures area or in a flat unpaved area.Prevent the discharge of soaps,solvents, painting, and cleaning detergents and wash water,paint,form release oils and curing compounds. Designated areas for material delivery and storage.Placed Material delivery and storage Area shown on plan near construction entrances,away from waterways and drainage paths Material use during building process Building areas Follow manufacturer's instructions and MSDS's Follow Erosion and Sediment Control Plan.Dispose of clearing debris at Solid waste disposal Current location shown on plan acceptable disposal sites.Seed and mulch,or sod within 7 days of land clearing overfilling.Materials not to be buried on-site Convenient and well-maintained portable sanitary facilities Sanitary waste Current location shown on plan will be provided,and located away from waterways or inlets. Such facilities shall be regularly maintained. Landscaping operations Landscape areas shown on plan Apply fertilizers in accordance with manufacturer's recommendations and not during rainfall events To be treated in a sediment basin or better control as Wash waters Wash areas shown on plan specified on plan.Minimize the discharge of pollutants from equipment and vehicle washing Vehicle and equipment washing Current areas shown on plan Providelan containment and filtering for all wash waters per the P C. Sources of Pollutants, continued. Common activities and minimum control and prevention ractices Pollutant,or Pollutant Prevention Practices, Generating Activity Location on site Control Measures Follow Erosion and Sediment Control Clearing,grading,excavating,and un- Land disturbance area Plan.Dispose of clearing debris at stabilized areas acceptable disposal sites.Seed and mulch, or sod within 7 days of land clearing Cover storm drain inlets and use drip Paving operations Roads and driveways pans and absorbent/oil dry for all paving machines to limit leaks and spills Direct concrete wash water into a leak- Concrete washout Current location and detail shown proof container or leak-proof settling and cement waste on plan basin that is designed so that no overflows can occur Enclose or cover material storage areas. Mix paint indoors in a containment area or Structure construction,stucco, Structures in a flat unpaved area.Prevent the painting,and cleaning discharge of soaps,solvents,detergents and wash water,paint,form release oils and curing compounds. Water shall be filtered,settled or similarly Dewatering operations Dewatering sites shown on plan treated prior to discharge as shown on plan. Designated areas for material delivery Material delivery and storage Designated area shown on plan and storage.Placed near construction entrances,away from waterways and drainage paths Follow manufacturer's instructions Material use during building process Building areas .MSDS's attached. waste collection area will not receive a substantial amount of runoff from upland Solid waste disposal Current designated container areas areas and does not drain directly to a on plan waterway.Containers have lids covered before periods of rain,or are in a covered area.Scheduled collection to prevent Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Pollutant,or Pollutant Prevention Practices, (venerating Activity Location on site Control Measures overfilling.MATERIALS NOT TO BE BURIED ON-SITE Convenient and well-maintained portable sanitary facilities will be Sanitary waste Current locations shown on plan provided,and located away from waterways or inlets.Such facilities shall be regularly maintained. Apply fertilizers in accordance with Landscaping operations Landscape areas shown on plan manufacturer's recommendations and not during rainfall events To be treated in a sediment basin or better control as specified on plan. Wash Waters Wash areas shown on plan Minimize the discharge of pollutants from equipment and vehicle washing Designated areas and details shown on Provide containment and filtering for all Vehicle and equipment washing plan wash waters per the plan Minimization of exposure to precipitation and stormwater.Minimize the exposure of building materials,building products, construction wastes,trash,landscape materials,fertilizers,pesticides,herbicides,detergents,sanitary waste,and other materials present on the site to precipitation and to stormwater. (Identify all non-stormwater discharges to occur on your site. Keep this plan up-to-date with ongoing site changes and inspections. See CGP,9VAC25-880-70 section E for examples of non-stormwater discharges.) D. Non-stormwater discharges Discharge Pollutants or Pollutant Location on Site Constituents Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP)Albemarle County E. Persons responsible for pollution prevention practices (Provide the names and contact information for all persons responsible for prevention practices as listed above.) Nat Perkins - Owner- (434)982-5304 This form will be transfered over when a contractor is selected for the project. F. Response and reporting practices Minimize discharges from spills and leaks.Minimize the discharge of pollutants from spills and leaks and implement chemical spill and leak prevention and response procedures as follows. Respond to all spills,leaks and discharges as follows; Report all spills,leaks and discharges as follows; (Provide detailed response and reporting practices according to 9VAC25-880-70, Part II, section A.4.e.) G. Pollution Prevention Awareness (Describe training and procedures to provide awareness and compliance for all measures in this document; waste management, wash waters, prevention measures, etc.) All construction activities shall comply with the Virginia erosion and sediment control standards. Please see attached erosion and sediment control plans for detailed methodology. Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County 6.0 POLLUTION PREVENTION PLAN 6.1 POTENTIAL SOURCES OF POLLUTION Soil disturbing activities associated with the construction of the UVA Golf Facility project potentially affect the quality of stormwater runoff. Therefore,proper erosion and sediment control measures will be installed prior to construction to manage stormwater and sediment. The location of potential pollutant sources should be documented and updated on the plans for the project. The limit of disturbance is the area identified as the likely location where potential spills and leaks may occur. 6.2 POLICIES AND PROCEDURES The operator should assure that employees are aware of applicable wastes, including wash water, disposal practices, and applicable disposal locations of such wastes, in order to comply with the conditions of the Permit. Personnel should be educated in spill prevention, area of possible pollution, and spill response procedures. 6.3 MANAGEMENT PRACTICES AND OTHER CONTROLS 6.3.1 Good Housekeeping Good housekeeping requires all personnel to maintain cleanliness and order in areas that could cause stormwater contamination. The following is a list of techniques that personnel should incorporate as good housekeeping practices on a daily basis: • Keep outside areas neat and orderly; clean drips and/or fix leaks from on-site equipment and inspect regularly; • Maintain a supply of spill response equipment; • Use watering truck to minimize dust; and, • Pick up windblown debris. 6.3.2 Minimizing Exposure Where practicable, protect industrial materials and activities with a storm-resistant shelter to prevent exposure to rain, snow, snowmelt, or runoff. 6.3.3 Existing Vegetation Preservation of existing vegetation will be practiced where possible. Areas not to be disturbed are shown on the Major Site Development Plans set and shall be delineated and clearly marked as a first step in construction. 6.4 SPILL PREVENTION AND RESPONSE The following practices will be followed for spill prevention and cleanup: • Products will be kept in original containers with the original manufacturer's label,where possible,unless they are not re-sealable. • Materials stored on-site will be stored in a neat, orderly manner in their appropriate containers. Materials that have the potential for contaminating runoff during storm events will be stored in their appropriate watertight containers,under a canopy,tarpaulin, shrink-wrapped, or otherwise precluded from direct exposure to precipitation. • Whenever possible, all of a product will be used before disposing of the container. If surplus product must be disposed of,manufacturers'and/or local and State recommended methods for proper disposal will be followed. • Manufacturers' recommendations for proper use and disposal will be followed. • If applicable,manufacturers' recommended methods for spill cleanup will be maintained on-site and site personnel will be made aware of the procedures and the location of the information and cleanup supplies. • If applicable, Materials and equipment necessary for spill cleanup will be kept in the material storage area on-site. Equipment and materials may include, but not be limited to, cleanup kits, brooms, dust pans, mops, rags, gloves, goggles, dirt to contain spills, containment boom, absorbent material (e.g., hay, kitty litter, sand, sawdust), and plastic and metal trash containers. • Spills will be cleaned up immediately after discovery. • In the event of a discharge of a potential pollutant or spill of a hazardous substance, the following steps should be taken: 1. Eliminate potential spark sources; 2. If possible and safe to do so, identify and shut down the source of the discharge to stop the flow; 3. Contain the discharge with sorbent, berms, fences, trenches, sandbags, or other material and ensure the area will be kept well ventilated. Personnel will wear appropriate protective clothing to prevent injury from contact with a hazardous substance during cleanup operations; 4. Contact the SWPPP Coordinator or his/her designee(Division Manager) or his/her alternate; 5. Contact regulatory authorities and the response organization as required by regulatory standards; and 6. Collect and dispose of recovered products according to applicable regulations. • Spills of toxic or hazardous material will be reported to the appropriate State and local government agency, as required by regulatory standards. • The contractor or his representative will be responsible for spill prevention and coordination. • The spill prevention and control procedures will be implemented once construction begins on-site. When a spill occurs, the individuals/agencies in Table 6 shall be considered for notification. Table 1 —Spill Notification Table Person/Agency Contact Information Local MS4(if applicable) DEQ Central Office 629 East Main Street Richmond,VA 23219 Statewide main office General: (804)698-4000 DEQ Valley Regional Office 4411 Early Road Albemarle,Augusta,Bath,Clarke,Fluvanna,Frederick,Greene, Harrisonburg,VA 22801 Highland,Nelson,Page,Rockbridge,Rockingham, Shenandoah and General: Warren; and the cities of Buena Vista, Charlottesville,Harrisonburg, (540)574-7800 Lexington, Staunton,Waynesboro and Winchester. Pollution Response Program: (276)676-4846 VA Department of Emergency Management(DEM) 1-800-468-8892 (24 hour#) Local Emergency Response 911 (24 hour#) 6.5 SPILL REPORTING 6.5.1 Reports of Unauthorized Discharges Any operator who discharges or causes or allows a discharge of sewage, industrial waste, other wastes,or any noxious or deleterious substance or a hazardous substance or oil in an amount equal to or in excess of a reportable quantity established under either 40 CFR Part 110 (Discharge of Oil), 40 CFR Part 117 (Reportable Quantities of Hazardous Substances), 40 CFR Part 302 (Reporting Reportable Quantities), or § 62.1-44.34:19 (Reporting of Discharge) of the Code of Virginia that occurs during a 24-hour period into or upon surface waters or who discharges or causes or allows a discharge that may reasonably be expected to enter surface waters, shall notify the DEQ of the discharge immediately upon discovery of the discharge, but in no case later than within 24 hours after said discovery. A written report of the unauthorized discharge shall be submitted to the DEQ and the VSMP authority within 5 days of discovery of the discharge, and contain the information listed in Part III G (Reports of unauthorized discharges) of the Permit. Spill notification procedures will be reviewed by all key personnel during the Project Training/Permit Rollout process. A Spill Report Form is provided at the end of this section. 6.5.2 Reports of Unusual or Extraordinary Discharges If any unusual or extraordinary discharge,including a"bypass"or"upset" as defined in the permit, should occur from a facility and the discharge enters or could be expected to enter surface waters, the operator shall promptly notify, in no case later than within 24 hours, the DEQ and the VSMP authority by telephone after the discovery of the discharge. This notification shall provide available details of the incident, including any adverse effects on aquatic life and the known number of fish killed. The operator shall reduce the report to writing and shall submit it to the DEQ and the VSMP authority within 5 days of discovery of the discharge in accordance with Part III I.2 of the Permit. Unusual and extraordinary discharges include, but are not limited to, any discharge resulting from: a. Unusual spillage of materials resulting directly or indirectly from processing operations; b. Breakdown of processing or accessory equipment; c. Failure or taking out of service of some or all of the facilities; and d. Flooding or other acts of nature. 6.5.3 Reports of Noncompliance The operator shall report any noncompliance that may adversely affect surface waters or endanger public health. • An oral report to the DEQ and the VSMP authority shall be provided within 24 hours from the time the operator becomes aware of the circumstances. The oral report shall contain the information specified in Part III I.1 of the Permit. • A written report shall be submitted within 5 days and shall contain the information specified in Part III I.2 of the Permit. The DEQ may waive the written report on a case- by-case basis for reports of noncompliance under Part III I (Reports of Noncompliance) of the Permit if the oral report has been received within 24 hours and no adverse impact on surface waters has been reported. • The operator shall report instances of noncompliance not reported under Part III I.1 or I.2 of the Permit in writing as part of the SWPPP. The reports shall contain the information listed in Part III I.2 of the Permit. • Where the operator becomes aware of a failure to submit any relevant facts, or submittal of incorrect information in any report, including a registration statement, to the DEQ or the VSMP authority,the operator shall promptly submit such facts or correct information. NOTE: The reports required in Parts III G (Reports of Unauthorized Discharges), H (Reports of Unusual or Extraordinary Discharges), and I (Reports of Noncompliance) of the CGP shall be made to the DEQ and the VSMP authority. Reports may be made by telephone, email, or by fax. For reports outside normal working hours, leaving a recorded message shall fulfill the immediate reporting requirement. For emergencies, the Virginia Department of Emergency Management maintains a 24-hour telephone service at 1-800-468-8892. 6.6 FUELING AND MAINTENANCE OF EQUIPMENT OR VEHICLES • The locations of all vehicle fueling areas will be documented in the SWPPP. These locations can be identified on the E&S Plan provided in Appendix C of the SWPPP. As the vehicle fueling facilities move throughout the project, areas need to be shown, dated, and signed. If vehicle fueling will not be part of the project,a written statement indicating that"no on-site vehicle fueling will be part of this project" should be added on the plans or included in the Log of Changes in Appendix G of the SWPPP. • On-site vehicles will be monitored for leaks and receive regular preventive maintenance to reduce the chance of leakage. • Refueling, repairs, and changing of equipment and vehicle fluids will be conducted in a manner to reduce the potential for contamination of on-site resources. Care should be taken, where feasible, to avoid activities within ±50 feet of storm drains, wetlands, streams, water bodies, tree preservation areas, or any other environmentally sensitive areas. • Secondary containment and spill response kits should be provided on-site. • These pollution prevention practices and procedures should be implemented to prevent the discharge of spilled and leaked fuels and chemicals from vehicle fueling and maintenance activities(e.g.,providing secondary containment such as spill berms,decks, spill containment pallets,providing cover where appropriate, and having spill kits readily available). • Petroleum products will be stored in tightly sealed containers that are clearly labeled. • Any asphalt substances used on-site will be applied according to the manufacturer's recommendations. • The contractor will regularly inspect the site to ensure that proper disposal methods of used antifreeze, oils, filters, and other hazardous materials are followed. 6.7 WASHING OF EQUIPMENT AND VEHICLES • Vehicle washing should not use soaps, solvents, or detergents. • Construction vehicle washing will only occur at approved locations in accordance with State and local regulations. The Guidelines for Vehicle and Equipment Washing is included in Appendix I. • Tire washing may be necessary as part of the site's construction entrance in order to minimize the transport of sediment by vehicular traffic onto a paved surface. If tire washing is necessary, provisions must be made to intercept the wash water and trap the sediment so it can be collected and stabilized. Wash water must be diverted away from the construction entrance to an approved settling area to remove sediment. • Pollution prevention practices and procedures should be implemented that will minimize the discharge of pollutants from vehicle and equipment washing, wheel wash water, and other types of washing(e.g.,locating activities away from surface waters and stormwater inlets, directing wash waters to sediment basins or traps, using filtration devices such as filter bags or sand filters,or using similarly effective controls),and the wash water should be filtered, settled, or similarly treated prior to discharge. • Physical separation should be provided between surface waters and inlets. 6.8 STORAGE,HANDLING,AND DISPOSAL OF CONSTRUCTION PRODUCTS, MATERIALS,AND WASTES In addition to the practices listed below, the practices in Section 5.4 - Spill Prevention and Response apply to the storage, handling, and disposal of construction products, materials, and wastes. Examples of these items include asphalt sealants, copper flashing, scrap building materials, adhesives, concrete admixtures, pesticides, herbicides, fertilizers, landscape materials, timber,pipe and electrical cuttings, diesel fuel, oil and hydraulic fluids, as well as paint and other petroleum products. • Waste materials will be collected and stored in a proper receptacle in accordance with local and State solid waste management regulations. Trash and construction debris from the site will be deposited in dumpsters. The locations of the dumpsters shall be documented in the SWPPP once determined in the field. These locations will be annotated on the E&S Plan. The trash will be hauled to an appropriate waste disposal site. No construction waste materials shall be buried on-site. Project personnel shall be instructed regarding the correct procedure for waste disposal. • Chemical or petroleum products will not be mixed with one another unless recommended by the manufacturer. • On-site equipment shall be checked for leaks and receive regular preventive maintenance. • Hazardous waste materials will be disposed of in the manner specified by the manufacturer and as required by local or State regulation. Site personnel will be instructed in these practices. • Portable sanitary units will be utilized at various locations along the project site. The locations of the portable sanitary units shall be documented in the SWPPP once determined in the field. As(or if)the units move,the movement of the facilities shall be documented in the SWPPP with initials of the individual authorizing the movement and a corresponding date. These locations will be annotated on the E&S Plans. Sanitary waste will be collected from the portable units as required by local and State regulation. • Portable sanitary units shall not be located in or adjacent to streams, drop inlets, stormwater flow paths, and floodplains. 6.9 WASHING OF CONCRETE OR OTHER MATERIALS • Concrete trucks will only wash out or discharge surplus concrete or drum wash water at approved locations in accordance with State and local regulations. • The discharge of wastewater from the washout of concrete is prohibited. • Direct concrete wash water into a leak-proof container or leak-proof settling basin. The container or basin shall be designed so that no overflows can occur due to inadequate sizing or precipitation. Hardened concrete wastes shall be removed and disposed of in a manner consistent with the handling of other construction wastes. Liquid concrete wastes shall be removed and disposed of in a manner consistent with the handling of other construction wash waters and shall not be discharged to surface waters. • See Environmental Protection Agency (EPA) Fact Sheet for concrete washout at http://www.epa.gov/npdes/pubs/concretewashout.pdf (provided in Appendix I of the SWPPP). • Washout areas are expected to be at designated construction entrance locations. The locations of the concrete washout areas shall be documented in the SWPPP once determined in the field. These locations should be identified on the E&S Plan in Appendix C of the SWPPP. Virginia Spill Report Form Project Type and Location: Date/Time of Spill: Time Incident Contained Spill Location and Events Leading to Spill Material Spilled: Source of Spill: Amount Spilled Amount Spilled to Waterway Surface Area of Impacted Media in sq. ft.: Type of Media (Soil or Pavement): Corrective Action Taken: Action Take to Prevent Future Spills Agencies Notified Modifications to Storm Water Pollution Prevention Plan: "I certify under penalty of law that I have read and understand this document and that this document and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." Signature of Reporter Date Print Name/Title Company I 1 ImportantResponse Plan to S III� Know! ! ! Report spills Point of Contact In Case of A Reportable Quantity Release: • • EPA National Response Center (800) 424-8802 immediately to owner. • Department of Environmental (800) 698-4000 Quality (800) 592-5482 • Employees will Virginia Office of Emergency (800) 468-8892 (in state) NOT be • punished for Management (804) 674-2400 (out of state) reporting spills. • Department of Conservation (804) 786-3957 and Recreation • Immediately attempt to - contain the spill Reportable Quantities and begin Material Media Released Reportable Quantity cleanup. To • Report spill if Engine oil, fuel, Land 25 Gallons over reportable hydraulic & brake fluid quantity Engine oil, fuel, Water Visible Sheen hydraulic & brake fluid Antifreeze, battery acid Land 100 lbs. (13 gal.) Refrigerant Air 1 lb. Spill Response Contractors Located in Virginia The following list is not meant to be all inclusive of all Spill Response Contractors in the state of Virginia nor is it meant to act as an endorsement of any of those listed below, This information is meant strictly for informational purposes. Company Contact Information A & A Environmental Services/Perma-Fix (540) 288-1176 Stafford, VA 22554 (800) 404-8037 (540) 288-1154 (fax) Accurate Marine Environmental, Inc. (757) 393-5840 Portsmouth, VA 23704 (757) 393-5845 Coastal Environmental Services, Inc. (757) 488-4244 Suffolk, VA 23435 (757) 488-4622 (fax) Clean Harbors Environmental (804) 452-1800 Prince George, VA 23875 (800) 645-8265 (804) 452-1700 (fax) Clean Harbors Environmental. (757) 543-9240 Chesapeake, VA 23324 (800) 645-8265 (757) 543-8486 (fax) Clean Venture, Inc. (757) 543-0614 Chesapeake, VA 23324 (757)543-0614 (fax) C & M Industries (757) 543-8775 Chesapeake, VA 23324 (757) 545-4386 Cliff Berry, Inc (CBI) (757) 484-6303 Portsmouth, VA 23703 (866) 484-0500 (757) 484-0524 (fax) ENSAT Corporation (540) 823-9083 Culpeper, VA 22701 (800) 753-6728 (540) 825-9087 Environmental Options, Inc. (540) 483-3920 Rocky Mount, VA 24151 (540) 483-3855 (fax) Gemini Oil Co. (757) 543-5718 Norfolk, VA 23523 IMS, Inc. / Hepaco (800) 888-7689 Chesapeake, VA 23320 (757) 436-3000 (757) 436-5266 (fax) Company Contact Information IMS, Inc./ Hepaco (800) 888-7689 Fredericksburg, VA 22405 (540) 372-9890 (540) 372-9889 (fax) IMS, Inc. I Hepaco (800) 888-7689 Richmond, VA 23234 (804) 275-5380 (804) 275-5384 IMS, Inc. / Hepaco (800) 888-7689 Norfolk, VA 23501 (757) 543-5718 (757) 543-4561 (fax) LCM Corporation (800) 774-5583 Hampton, VA 23670 (757) 380-5583 (757) 380-9146 (fax) LCM Corporation (800) 774-5583 Roanoke, VA 24034 (540) 344-5583 (540) 342-9438 (fax) Moran Environmental Recovery (757) 216-8836 Norfolk, VA 23504 (866) 682-5970 (757) 216-8839 (fax) MSRC (703) 326-5600 Herndon, VA 20170 (800) 645-7745 (703) 326-5660 (fax) MSRC (757) 464-2866 Virginia Beach, VA 23455 (800) 645-7745 (757) 460-4586 (fax) Marshall Miller & Associates, Inc. (276) 322-5467 Bluefield, VA 24605 (800) 733-5467 (276) 322-1510 (fax) PetroChem Recovery Services (757) 627-8791 Norfolk, VA 23501 (800) 723-6951 (757) 640-1261 (fax) S.C. Rossi & Co., Inc. (540) 342-6600 Roanoke, VA 24014 (540) 342-6611 (fax) W.E.L. Inc. (434) 993-2210 Concord, VA 24538 (800) 847-2455 (434) 993-2287 (fax) W.L. Black & Assoc. (866) 238-7839 Chesapeake, VA 23323 (757) 487-5245 (757) 487-7114 (fax) VIRGINIA UNIFORM CODING SYSTEM \ °", T ��\i I \ f 1 'I irll//ll l� I/ I 1'\ , \ \ \\ \\ \ \ \ `\ FOR EROSION AND SEDIMENT CONTROL PRACTICES LEGEND \ </ / \ / I///7/ A \ \ \ \ °N \ �� I \ \ \\ \ \ \ L \ Dewberry. 3.02 CONSTRUCTION ENTRANCE ® —i //r✓1/ /� ` '�11 �'/ //�/// //. L 1\ \ \\\\\ \\\\\\ \\ 1 •-:•• --- --- -- PROPOSED LIMITS OF DISTURBANCE - ° 7 • I \• /ii‘ �, y/ //,///, ° /\ \ \\\ \\\ ° \ \\ \ Dewberry Engineers Inc.ax..01290 AN 3.05 SILT FENCE x x 4 il. / 1. Peon Lase 290 sine zoo 7957 3.07 INLET PROTECTION / �... -� if:r;• 1 \�` // 1 1 �\ l/�// //,/�/ �C / � \ \\\\ \\\\ \\ \\\ \ \ cw..e..erry.mm E IP / BOAR'S HEAD SPORTS C Y < r' \w yx 3.09 TEMPORARY DIVERSION DIKE ® // tr T; q;. ,/� \ //- \� I//// IIIl l� / °,® . / �_�; \\ \\ \\ \\ \ \ \ ` \ O 3.14 : :: a451N 620 • \PROPOSED MAIOR CONTOUR20 \\ t38 r�/ p`.J {; \ \ ® " EXISTING PROPERTY LINE •/ t./ / �I�. �` < _ �•\1` \\ �j/// I( I (�I I�'' // \ // /��\\\\�\\\\\ \\\\\ \\ \ I �Z Z LLJ ARTHUR 5610H CEN�' t./ �y0,, n�� \A Pa�� - �/ I ( ��(;((ii � � // �/ �VA� \AVAV\\ VA\ VA\ \ VA11) D 3.31 TEMPORARY SEmINC OPROPOSED CGHi DUTY ASPHALT PAVEMENT �\, .. 1•S ' ` \ �.194, �,.7 —1 I ) Li\ I I / / /// \ \,\\\ \\\ \\ \ \ \ \ I Z z 5- ® vV PROPOSED HEAVY DUTY ASPHALT PAVEMENT / `^�Q\� 1`��� II 1 1i I I1 \ j / \\\ \\\\\ \ \ \ \ \ \ � O ¢3.35 MULCHING © VzvO \r / � •� \ � A� •1 ,1(I B`.„,,,,,1i''' , // /' /\1 `\\ \`\ \\\ \\.\ \\\\\\ \ \\\ \ z . 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I `\1 I\I \ \tt \\ \\ \ I I\ \ ,.� \\ �� '\i, ; ,.` / // ill \\ �`,l II\ it 111 I \ \\ \V \ . \ \\ \\ \ \\ \\ h I /� / 1 I ///� / / �,a\\\ \ ,1 I )\\ ` ` ` \\ \ I \\ \\ 4 w. � /� � '. \ / /� \�i �/ C6. 11 \ \ I -/ -/� .g irl , ,=-1 .. // f /° McARTHUR ,� SQUASH CENTER \\ \ ° \ // •' PROJECT \ ° / UVA Tennis r \ \\ // / 4 ,• Q\ / 'ill •'. 1 •,° PLANTING AREA PLANTING AREA A 4 - w ° // - /' 2T-2" 4 , CLIENT / ` -WALKWAY EDGE / - 4 5'-0• y ��� PARALLEL TO TENNIS University of Virginia !q ° ° ° a ° 'I COURT PERIMETER Foundation / a I Qce / ` e r• ., ° , PO Boa 400218 �\G� / a __'l _.__.._-_ __ -_-_ _- Charbtfesvllle.VA WALKWAY EDGE PARALLEL TO 5'-0" 434.982.4848 tel 434.982.5852 tax 0� de °BUILDING FACE. ° CONCRETE www.watoundatbn.com Q- / _.PLANTING AREA 4'-0" -,� / 4„ ° 4 4 ° ! CONSULTANT PAVING ------15'-0"- s---15'-0"--- PLANTING AREA ! a° ° -0, ° 4 • ° ° 4 � 3101 Wllsonh8wkvaerd Services 900 PLANTING BED ALIGNED Arlington,VA 22201 -ALIGN EDGE OF i WITH BUILDING EDGE • ° °-11' -- 1 - PLANTING BED 8 e 2,'f" Prewar.Rachel Lloyd,RLA WITH STEPS,TYP. ad ALIGN EDGE OF-yY '� - ENTERLINE OF STEPS AND ° ° �..,�� ' 8-0"p PLANTING AREA WITH yq... ,� ��'FF �� WALKWAY TO ALIGN WITH ° r° STEPS.TYP. CENTERLINE OF DOOR � AREA - / a a 1 -1• `� ALKWAY EDGES PARALLEL TO CONCRETE F N. // i ' BUILDING FACE - 30-0 PAVING 1T-7.� z z ‘ ° n Qz c. 0 4 •CANTING BED PARALLEL TO - 4a . t BUILDING EDGE TENNIS FACILITY 2 •-6" I REGISTRATION CONCRETE • / PAVING f j� lso : TING 28-0"a / ✓ 1 ,-0 AREA h , SO H PLANTING AREA < 1 °1 -., Ito / °\ to 4 z I " 15-0" O ` DATE W Iw < a May 10, 2019 z 4 = .16-0"3 a.3 I 6- ' '-4< PLANTING AREA / 1 1" .W L._ - - - SITE PLAN /' j1 I • CRETE 'AVING-REFER CIVIL / ¢ - - _ 60580805 2 '-6" PROJECT NUMBER J 2 7,--ALIG PLANTING AREA 0 6�,• CONCRETE AR�TING 28-0"w PAVING z -ALIG 4 ALIGN-- AL w (- PLANTING TITLE 4 AREA O PLANTING AREA 4' • .1` -15'-0" - i i 1 S-0" �` PLANTING AREA 4 ° 4 ° I :'-2• 19'-1" 4 -8.-11"�'— — ° 74'-2" — 4 d ° ° „• ° o• PLAZA LAYOUT 13 e" CONCRETE PAVING a CONCRETE PAVING ° 13-0" AND MATERIALS r ALIG ALIGN- ALIG - ALIG ° ° CANTING BEDS µ�\\ /r \ µ-�\\ N-,\\ c-A.�--.,\\ 44 MIRRORED EAST-ix PLAN 4 ■ I � \ 1 i d l {� 1 ° ��I \4 s °° 44 AND WEST ON ° - CENTERLINE SHEET NUMBER 4',1-0" PLANTING AREA PLANTING AREA PLANTING AREA PLANTING AREA PLANTING AREA PLANTING AREA < { PLANTING AREA PLANTING AREA PLANTING AREA ° ° c ° °* 27-0 J'S'-0",I' 22'-0' J'6'-0".' 21'-6" 4'5'-0'*--- 21'-6" 6'-0"- 22'-0" -0' --- 22'-0"-- -.I• ° 16'4r� 4•, . o < 0 4 4 4 tF—� 1 I--.I I , I I I I I 11= 11 I1 1 r t t 1 1 t 1 1 I t t t r r t t t t r_t r - L 1 r i i i i r r t r r-I,--1 1 t r 1 r i r 1 1 10 0 10 20 r=1a0, SCALE OF FEET EXISTING / ,>~ 0 NOTES \ TENNIS COURTS / I 1. PLEASE SEE PLANTING SCHEDULE AND\ PROJECT OTHER PLANTING INFORMATION ON SHEET L3. UVA Tennis /f 2. DO NOT INSTALL ANY TREES WITHIN 10'-0° OF SANITARY STORM SEWER(SSWR)LINE. ,!�0 / 3. FINISH GRADE IS TO BE 1'BELOW TOP OF BOAR'S HEAD ) PAVEMENT AT PLANTING BEDS;TAPER 0/ SPORTS CLUB W r MULCH TO MEET FLUSH AT EDGE OF / PAVING. /, ` 4. GROUND COVER AREAS NOT DESIGNATED CLIENT / / AS MEADOW SHALL BE LAWN. / \ 5. PROVIDE APPROX.3'MOW STRIP OFLAWN University of Virginia / /% / \ 0 / ' ADJACENT TO PATHS AND OTHER PAVED PFO ooe 41, \ MEADOW \ -- \ AREAS. VA 4349824848 tel 434.982.5852 fax p0l��QB el) \\ tCONSULTANioacom i CONSULTANT / 0 • c, �� AECOM Technical Services 45,0 \ C. Arlington, n ton.VA Boulevard,Services 900 000f QB \QB I \ i ` 70.6 on.90z2201 el p.ls� / E 703.682.4900 tel /0 0 , QBQB NS vnvw.aecom.com c g0>+Olti / 01 'BSibligli Preparers Rachel Uoyd,RLA 20 1J ° beer.°.w:o.+.:e�o4, tercw�4abo 11111, 1281N �Q�\G� 7,e/ 1720 190 DCP i i 275 D) -- 130 DC 5 �� �. , TENNIS COURT \ A McARTHUR ��� 125 DC 290 DC Ng • \a SQUASH \ . ���Q r— \\ 4 CENTER // 490.4" S TENNIS 190 DC AGILITY \ / PAVILION rl l( FIELD/ T ARTIFICIAL \ l I I _ 1 TURF MEADOW \ EXISTING TREE '. A •�)TOREMMN. / LAWN 4� t 1 L A ,A TYP. b. , /� PA QB/%a / / '� 520 // 11 llll�°iulll ` C C — 1900C 275 DC 130ink QB \lfp \ \ \ REGISTRATION OA, ;,..\ // d`'a+�.o �� _ "'-'--""'cam",:,"rr. MV IviV\ _ (® \ 40 '\ /10 LI * As DRIVING d' COG RANGE \� Ilrr 4 r•WTr . ;� I, , �% TENNIS COURTS - TENNIS COURTS •._� g.,' �} to 21IN ° %��I �j 1� 17PG 'r0 I 'j 11 1 f od°,°e Xqb / OW '� /I� /,� LAWN {i j 11 I i -- ti pe 4 IN\ C 1MEADOW • �e.�• ` / „N., / j l I i I• I , I I I 1 • /'�?•. , i:�. LAWN ` \- I I I I - -'j ' V 27IN p � \ -� \ DATE ,'•y® 15FG�i� V'w 4.i 0.. 96 'c._ ___ e- 154rvi _' May 10, 2019 10 A. • , I '1��`/ 1 — 5 -Ex 5IJ ��' �� \, ♦� _C' 1,o7 f \ ' " ,'"�' CFois .............................................. "Iss >�s,s a\' ✓s ,�� - +I ae`w oi o"��x�o' iso u� ".fi�`ib`�a _ �� `� �� l ,giit ma� aw./..w.,��«ob ��:1.,ew.. ,=•�'•���$•o.',csr � e � w®'d LAWN it ft.! ! ! SITE PLAN / .. .. :. ..;::..a0aas•Asa: •-_.,:,,eaoaaCa saZaeoao' "MI.Ja.. q : •::•�c�.�;•sa•;:, once,:, w �' ��' \ / I ` 30 CA- 30 VB 20 FG 25 N 18 CA 29 FG 26 VB 271V 27 CA 14 FG 34 CA 35 VB 16 FG 24 N LAWN ��' 410 ��, 0 i \ "It 16GT i wl� 0 \; 60580805 \ MEADOW 1130 �, 4 PARKING _( !' (�� `�P\ \ it PROJECT NUMBER \ — _ .> "�,.. ...0 -.-..���� -- ���itylieller ��� MEADOW �� 411) CUBHOUS- � 0� LAWN \\�, ��i. , •ARKING ° o LAWN MEADOW � ��, ` � ° oltA \ TREE OTECTIO / VM1' ♦��a� - •LAWN �'�- ��. ,� LAWN1 o000°. ` —. — I v', \ TITLE � � 1 �„`JJII l vNr, �`• � • PLANTING PLAN '''\.'"1) ` , ` •.1 MEADOW\ \,,, / /!i/ ,� ''►..) f No, \\ \� \ Ill, , \ " ";',"/. 1 , ' gpl''Ai ` ` "� '\ / ,"/ T \ \ ' SHEET NUMBER i 11 e__ N \ \` / ) EXISTING I 1' / TREES TO t \ / REMAIN,TYP. I \— /,� i // O \\`\ ' I_2 \ " r \`\`\ .`\ 40 0 40 80 1...40'_./ \ \ 11) SCALE OF FEET 0 TREES U SYMBOL QTY BOTANICAL NAME COMMON NAME ROOT SIZE SPACING NOTES PROJECT CF 18 CORNUS FLORIDA FLOWERING DOGWOOD B&B 6-6'HT • AS SHOWN SPECIMEN UVA Tennis GT 34 GLEDISTIA TRIACANTHOS'INERMIS' THORNLESS HONEYLOCUST B&B 2.5'CAL. AS SHOWN SPECIMEN bed 12 MAGNOLIA VIRGINIANA SWEETBAY MAGNOLIA B&B 4-5'HT AS SHOWN SPECIMEN NS 45 NYSSA SYLVATICA BLACK GUM 138,8 2.5'CAL. AS SHOWN SPECIMEN PA 49 PLATANUS X ACERIFOLIA PLANE TREE B&B 2.5'CAL. . AS SHOWN SPECIMEN QB 19 QUERCUS BICOLOR SWAMP OAK B&B 2.5°CAL. AS SHOWN SPECIMEN CLIENT University of Virginia ORNAMENTAL GRASSES AND SHRUBS Foundation PO Box 400218 SYMBOL QTY BOTANICAL NAME COMMON NAME ROOT SIZE SPACING NOTES Charlottesville,VA 434.982.4848 tel 434.982.5852 fax CP 6060 CAREX PENSYLVANICA SEDGE PLUGS 3-4'HT 8'O.C. www.waroundation.com CONSULTANT CA 109 CLETHRA ALNIFOLIA SUMMERSWEET #3 CONT. 2-3'HT. AS SHOWN FULL TO GROUND AECOM Technical Services DC - 3930 DECHAMPSIA CESPITOSA TUFTED HAIR GRASS #3 CONT. 12-18'HT. 12'O.C. 3101 Wilson Boulevard,Suite 900 Arlington,VA 22201 FG 180 FOTHERGILLA'MOUNT AIRY' DWARF FOTHERGILLA #3 CONT. 18-24'HT. AS SHOWN FULL TO GROUND 703.682.4900 tel W Ww.aecom.<om IJ 49 ILEX VERTICILLATA'JIM DANDY' JIM DANDY WINTERBERRY #3 CONT. 23'HT. AS SHOWN Preparer Rachel Lloyd,RLA IN 200 ILEX VERTICILLATA'NANA' RED SPRITE WINTERBERRY #3 CONT. 12-18'HT. AS SHOWN N 76 ILEX VERTICILLATA WINTERBERRY #3 CONT. 2-3'HT. AS SHOWN MC 100 MUHLENBERGIA CAPILLARIS PINK MUHLY GRASS #3 CONT. 12-18'HT. 24'O.C. PA 805 PENNISETUM ALOPECUROIDES'CASSIAN'S CHOICE' FOUNTAIN GRASS #3 CONT. 12-18'HT. 24'O.C. VB 65 VIBURNUM X BURKWOODII BURKWOOD VIBURNUM #3 CONT. 2-3'HT. AS SHOWN FULL TO GROUND LAWN AND MEADOW • LAWN . LATEST VIRGINIA COOPERATIVE EXTENSION VIRGINIA TURFGRASS VARIETY RECOMMENDATIONS SOD MEADOW ERNST ERNMIX 156 WITH COVER CROP DRILL PLUGS OR BROADCAST AT 30 LBS/ACRE WITH COVER CROP OF GRAIN RYE AT 30 LBS/ACRE REGISTRATION NOTES • County or AlbemarlePLEASE SEE PLANTING PLAN ON SHEET L2 Conservation Plan Checklist-To be placed on Landscape Plans (Handbook,pp 111-284-I1 1-297 for complete specifications) AREA OF NEW PARKING AND VEHICULAR CIRCULATION- 127,732 SF AREA REQUIRED FOR PLANTING OF TREES/SHRUBS(5%)- 6,386 SF 1 The rorlowine items.shall he shown on the elan, U Trees to be saved, U Limn.of clearing(on side driplineof trees mbesaved), AREA OF TREES AND SHRUBS ADJACENT TO NEW ❑ Location and type of protective renting; PAVED PARKING AND VEHICULAR CIRCULATION 25,188 SF ❑ (hale changes requiring tree wells or walla: O PnaposednKning«nmmle8beynm,abmhaorening 74 SHADE TREES SHOWN FOR 237 PARKING SPACES 2. Modems: ❑ An land to be saved stall be marked with prim or ribhun at a height a lady visible to equips ea operas.. TOTAL LANDSCAPE AREA- 424,741 SF ❑ lao grading Jell bcgia limit the nee marking has been inspected and,ppenved by a County Inspector. DATE I pral.e8r.dionCosfernree, AREA REQUIRED FOR TREE CANOPY(10%) 42,471 SF May 10, 2019 ❑ treepr<aervation and protection measures shall h<reviewed with the:ontracmr on silo 4. v Boma,,Operation end St.uree. TOTAL TREE CANOPY AREA 47,252 SF ❑ I leavy equipment,vehicular bathe and storage or construction materials including soil shad not be petmiMd within tie driplines ohmes tob`saved. THE VEGETATION SHOWN ON SHEET L2 SATISFIES THE MINIMUM s. Soil Ernsbn.a4Slennwaterryetee..lkvrce,, LANDSCAPING AND SCREENING REQUIREMENTS OF THE ALBEMARLE ❑ Such devices shall not adversely affect dem to be saved. COUNTY CODE. SITE PLAN 6 rem ❑ Mon arc not permitted within 100 feet of the drigineof000a01eawed. ALL SITE PLANTINGS OF TREES AND SHRUBS SHALL BE ALLOWED TO REACH,AND BE MAINTAINED AT,MATURE HEIGHT.THE TOPPING OF C C C 1. Teak Toxic ok• TREES IS PROHIBITED. 60580805 ❑ Tosic materials Shull tin be stored within iql fat of the driplirm of to be saved. E preleebve Pend.. ALL VEGETATION SHALL BE MAINTAINED IN A HEALTHY CONDITION BY PROJECT NUMBER ❑ rr«s to be retained wddn to r t of proposed building nrgrading,iv;y,nall let protected ny fencing. THE CURRANT OWNER AND REPLACED WHEN NECESSARY. ❑ Pacing Amli be in piece and shall be inn:meted end approved M a Coady Inspector prior to grading or oansauctum. REPLACEMENT MATERIAL SHALL COMPLY WITH THE APPROVED PLAN. 9. Trswalk: ❑ When the ground level mu.be.olaWold,,,,dwd,iplbu ura scar to5,wood,a nee*di shall eeavoided sal a lion detail .,Mrital for appmva/ 10.Tow W.Ik: ❑ When the ground level moat be lowered within the dripl,ne.nee to be saved,a tree wall shall be provided:and.oaalw4i0n dew l submitted for approval TITLE I I.Treechi.e sad Tea.el4y ❑ What trenching is rcq•ired within the limits of clearing,it shall be dote as fa away from the unnks dimes as pesibk.Tunneling m,der a large nee shall be considered ea an alt<mMive when it is anticipated that necessary hroching will destiny feeder mots. . PLANTING It.Cin..e. ❑ innkaio<fencing shalledm last ilema removed Miring the final draw SCHEDULE 13.D.a.red Tress. ❑ Damaged trees shell M heated immediately by pinning,fm,lirxbn n,other methods recommended by a tree specialist. NOTE:IT MIME DEVELOPER'S RESPONSIBILITY TO CONFER WITH THE CONTRACTOR ON TREE CONSERVATION REQUIREMENTS. L.4irE4b„ip1.4/14 thR(.rritll FiRAy4'l1oo) SHEET NUMBER I F ,..bi6S62 A # OWNER 4TIURE (DA I CONTRACT PURCHASER SIGNATURE (DATE) L3 3/I/06 Page I of I it x U K Q PROJECT UVA Tennis I • / N \ 1/2 ROOT BALL / \ (BOTH SIDES) '/ '2?• i� ��. CLIENT UPHILL ~ 1 ( a DOWNHILL SIDE g + ' SIDE University of Virginia b� ,o`'-Y. p ,o`= -s.,r \ N. Foundation ir--�-:_ d b- . .- r c PO Box 40021$ b _."• -,•` PREVAILING WINDS - b>- • Z.I.•` ,� cols,VA f '�� _ .-`-'' �� :LAN, TREE SUPPORT SYSTEM(3)GUYING STAKES 434.982.4848 tel 434.982.5852 fax b: I, I j.0% LESS THAN 3'CALIPER TREE b=+ / o �,o % p WITH SOFT WOVEN POLYPROPYLENE TIES.USE ' ba .�+ nor; rr•II _ TREE SUPPORT SYSTEM(2)Y X Y nor o\� - • N. ROOT BALL •• SECURED SLIPKNOT TO FORM LOOPS 6'-6'0 CONSULTANT LI. fff d / HARDWOOD STAKES WITH SOFT WOVEN p" o ' f Rl I-_ LARGER THAN TRUNK.ALLOW SWAY IN TIES. o p r r,I POLYPROPYLENE TIES.USE SECURED - ' r i ��= ' PLAN LIMIT OF EXCAVATION ,` • . AECOM Tadni®I Sarvfcee .- - _ _. - o = - ►' _I' 3101 Wilson Boulevard,Suite 900 _ = SLIPKNOT TO FORM LOOP 6'$'0 LARGER '_ - �;_ Arlington,VA 22201 z °' - - g a / THAN TRUNK. o,vb -wrI �� SET TRUNK FLARE ABOVE SURROUNDING b�.- o a TREE SUPPORT SYSTEM FOR SLOPES STEEPER 12o3.a92.4990 - - - (` _ FINISH GRADE NO MORE THAN 1I6 THE DEPTH 3 b .• y o b y a THAN 3:1 3 GUYING STAKES WITH SOFT WOVEN :^ �, tel » a a. D o - -1 o O b o` - "-/ o ao O 7����fr �i •• OF THE ROOT BALL ioM,RLA 1 I oSET TRUNK FLARE ABOVE SURROUNDING ` a POLYPROPYLENE TIES.USE SECURED SLIPKNOT .�� ,( oP.epa.er.Rad,el LC b t aa' 2'MULCH,DBNOT 39,' � `• IFINISH GRADE NO MORE THAN 1/6 THE DEPTH TO FORM LOOPS 6'-7 0 LARGER THAN TRUNK. �C�Fi - /-`�/� 2'MULCH,DO NOT COVER TRUNK FLARE COVER TRUNK FLARE }�� ��/;I_ ! ' OF THE ROOT BALL ALLOW SWAY IN TIES.SECURE JUST ABOVE .�^ _ 1' I • - ��� \ REMOVE BURLAP AND WIRE BASKET TO PLANTING SOIL MIX / LOWEST,STOUTEST BRANCH.INSTALL(2) .,,.- II �_ II 2'MULCH,DO NOT COVER TRUNK FLARE ./ iFULLEST EXTENT POSSIBLE /' STAKES ON UPHILL SIDE OF TREE.REFER TREE i --REMOVE BURLAP AND WIRE BASKET TO FINISH GRADE -` \ PLANTING DETAIL-STAKING FOR TREES ON SURVEYOR'S FLAG,AS NECESSARY PROVIDEICER / PROVIDE7HEIGHTSAUCER 1 \ SET TRUNK FLARE 2'ABOVE SURROUNDING B „. uu, FINISH GRADE s —�� ./ UNDISTURBED EXCAVATION fl.,';'�� ` I ' \ FINISH GRADE Iti \� 6TMINIMUMAKE IN BEYOND EX ION -1 PLANTING SOIL MIX I I I 1 I .fiyl, PROVIDE 3'4'HEIGHT SAUCER \ °r "� "��~ - - °� _ ' SCARIFY EXCAVATION II I I r �' S ............. - PLANTING SOIL MIX i 1I I i —~�r • EXTEND STAKES INTO FIRM BEARING SOIL II I I •i I AIL `REMOVE BURLAP AND WIRE BASKET TO 'i - x,"`i 1 =1 SCARIFY EXCAVATION II III III III — FULLEST EXTENT POSSIBLE II II �—I bI III III 1 (I NOTE:FLAGGING IS ENCOURAGED NEAR __ 1 I+ 1 _III III- 'I I=f 1 I+ 1 I u 1 �—_III-�-_..SCARIFY EXCAVATION 1=1 I HI I I J I I-11 I—I 1—I I H I PEDESTRIAN AREAS,PAVED OR UNPAVED: 3X ROOT BALL WIDTH I I- 'i 'I I y I I 1 �TI I I OBTAIN OWNER REPRESENTATIVE'S APPROVAL 3X ROOT BALL WIDTH / FOR FLAGGING LOCATIONS. REGISTRATION ® TREE PLANTING--STAKING 410 TREE PLANTING—ON SLOPE 410 MULTISTEM TREE PLANTING SCALE 1/2"=1'-0' SCALE 1/2"=1'-0" SCALE 1/2'=1'-0' DATE May 10, 2019 SITE PLAN 7 MULCH-FORM INTO SAUCER AROUND ,�� �( �/ �1{� �� EACH PLANT p-S'�r� a PROVIDE 7-7 HEIGHT SAUCER iNilOr \� Ir/ ��" II 1�I// PROJECT NUMBER PlANI NG SOIL MIX CONTINUOUS • ?�Pl k T -•r �l I i' 7 MULCH OVER ENTIRE BED. o�,A�4.t►N1 r 7 MULCH CONTINUOUS �r ���THROUGHOUT PLANTING BED : %�`lit;; 0- JI .\ ,,ir. .•\\1�1�;y 1�114 S COVER cRowNs of 60580805 :.�` —I - b d l Ett f%,e,N I f,. \ %%a,,i.y 'r \8 FINISH GRADE "Fa.110- ♦ ittt14')r . v i i�E�/Eli i� r=`:44.{,.. c• r�- ``'1t ry` At �►'':7", _ •.:.`t. ti�:7� - I I........................................................I s _t, v �1`, ,�,� I \ �l� I 41 \ Q'%V HTII Hn -�`� 1\ o��;� ���,��`(f,I•���^ FINISH GRADE LEI . . _•• ,_\('' ,41 ,mnIII111H11{ 111IIIlu {IIIIIIIIII llllll6 IIII It _ \v I / PLANTING SOIL MD( T \1i ///� �t i�- - � �11 i SCARIFY EXCAVATION -III �2.-�" a ..k�AI- 1� - TITLE ............-'. n > 77. .I/ ...f...nn..' a. A I.=I—1I II1 I II I�IFI II '0 0 FINISH GRADE r ea e a.•t:;.L. .a -- '�!Li: .� t- t _ _ 3'ti'4..r4'1, § I 'S 4�i i ', b.:"; v x.A?`�'0� ..: , J"... I. I SITE DETAILS dI 1 ti. -. IF ��I '1,I t.. -III— _ _ I1 �1 ` „e�,`, ,� o I_ N/.:;:. :, II— 1 —II�JI= 11=III_ 11 I-1 I—u— u - -- ?+ I—J.11 I_ I E = '-I H T T-ILO 11=1 IH l I_ PLANTING SOIL MIX -1_I U I'=I—_-I I=I I-1 T IT_LI NOTE: I_ I T I I I" NOTE: 1=" I ITT I�J1 CONTINUOUS I-I—1-'T=1 11-1 ' " - POCKET PLANT ON SLOPES STEEPER THAN 3:1.PLANTING SOIL —I I I THROUGHOUT PLANTING INSTALL PLANTS EQUAL DISTANCE BED ryiiON MIX AND PLANTING BED CONTINUOUS BETWEEN PLANTS ON APART UN TH E TED PLANS SLOPES AT 3:1 OR LESS. ' SHEET NUMBER 0 SHRUB PLANTING 5 SHRUB PLANTING—ON SLOPE /1 ORNAMENTAL GRASSES L4 SCALE 1/2'=1'-0" L4 SCALE 1/2"=1'-0' Lq SCALE 1'=1'-0' 53 x k 0 i PROJECT • UVA Tennis CLIENT University of Virginia Foundation PO Box 400218 OA 0 4 e Charlottesville,VA 434.982.4848 tel 434.982.5852 fax www.uvaloundation.tan CONSULTANT 0 PLANT,TYP. AECOM Technical Services OM" 3101 Wilson Boulevard,Suite 900 Arlington,VA 22201 703.682.4900 tei PLANT www.ae<om.mm Preparac.Rachel LloyC,RLA SPACING'D. ROW'A' 6'0.C. S 0.C. 8'O.C. T O.C. 10'O.C. 9'O.C. 12'O.C. 10'O.C. 15'O.C. 13'O.C. 18'O.C. 16'O.C. 24'O.C. 20'O.C. 36'O.C. 26'O.C. ' NOTE: INSTALL PLANTS WITH TRIANGULAR SPACING UNLESS OTHERWISE NOTED ON PLANS OPLANT SPACING SCALE 1'=1'-0' REGISTRATION NOTES: 1.)TREE PRESERVATION BOUNDARIES TO BE THE LARGER OF:THE EXISTING TREE DRIP LINE PRIOR TO WORK;THE AREA 1 FOOT FROM TREE TRUNK IN ALL DIRECTIONS FOR EACH 1.5- 2 INCHES OF TRUNK DIAMETER;THE CRITICAL ROOT ZONE AS ESTABLISHED BY AN ISA CERTIFIED ARBORIST OR URBAN FORESTER OF THE JURISDICTION.EXCEPTIONS INCLUDE EXISTING TREE CRITICAL LOCATIONS WHERE TREE DRIP LINES EXTEND OVER PAVING TO REMAIN;IN SUCH CASES, ROOT ZONE(CRZ) TREE PRESERVATION BOUNDARIES MAY BE ALIGNED WITH PAVING EDGE • 2.)TREE PRESERVATION FENCING IS TO BE PRELIMINARILY STAKED PRIOR TO THE COMMENCEMENT OF CONSTRUCTION TO CONFIRM AND RECEIVE ARBORIST APPROVAL OF TREE PRESERVATION FENCE LOCATION PRIOR TO INSTALLATION. DATE TREE 1 3.)TREE PRESERVATION FENCE TO BE MAINTAINED THROUGHOUT CONSTRUCTION. I + 4.)SHRUBS MAY BE INSTALLED WITHIN TREE PRESERVATION BOUNDARIES.SHRUB PITS TO BE May10, 2019 BOUNDY AND ADJUST D AS NEEDED TO AVOID DISTURBI GO LN ARGE TREE AR LOCATIONS/ oo r ' TREE PROTECTION FENCING D =��; ►� (TP) Dxa :0 _._r o r • S. - , SITE PLAN SINGLE SPECIMEN TREE b u r �.� -�� , PROTECTION bb . o TREE � u o� •• - _ EXISTING TREES AND PROJECT NUMBER :•."- I. " 04 VEGETATION TO REMAIN. EXISTING TREE CRITICAL GQ u Z •,- i r a�+ xa 0 60580805 — o `� ,-4'ORANGE PLASTIC SNOW PROTECTION / — _,,ROOT ZONE(CRZ) - ! �a o FENCE,SECURED AT EACH t-i\ O a tr. r - __ ` a d POST WITH A MINIMUM OF \ Db r \ P r d d (3)WIRE TIES. ZONE TREE TREE oD O r C O do �I + + ' D � >� AS TREE PROTT(E�)C)TION EVERY / +TREE © SORT�}10ES`PAN OF FENCE WITHIN THIS FENCE THERE IS TO BE n \ 2"X 2'X 6'HARDWOOD OR NO TITLE Y STEEL U-CHANNEL _, i a'-0'o.c. STORAGE OF MATERIALS/EQUIPMENT '� LANDSCAPE PLANTING , �` STAKES 8'-0'O.C.MAX., — I DRIVEN 18"INTO GROUND. DETAILS ` ^ z, ` TRpEE PROTECTION FENCING r TRENCHING OR EXCAVATION ____- LINT OF CONSTRUCTION w I WASHING OF TOOLS OR EQUIPMENT 2 4 /DISTURBANCE(LOD) §2 0 a w w EXISTING GRADE FENCE NOT To BE ALTERED OR REMOVED WITHOUT CLUSTERED TREE PROTECTION IL= PRIOR APPROVAL FROM PROJECT ARBORIST. SHEET NUMBER O TREE PROTECTION 411) TREE PROTECTION SIGN NTS NTSL5 Section 7. Discharges to impaired waters, surface waters within an applicable TMDL wasteload allocation, and exceptional waters. Provide detailed measures for any applicable TMDL) A total maximum daily load (TMDL) approved by the State Water Control Board may include a wasteload allocation to the regulated construction activity that identified the pollutant for which stormwater control measures are necessary for the surface water to meet water quality standards. Waterbody Location / Length Pollutant of Concern Morey Creek From its headwaters to Moore's Creek Benthic-Macroinvertebrate Bioassessments Moores Creek From confluence with Ragged Mountain Dam to the RSWA Moores Creek STP bridge Benthic-Macroinvertebrate Bioassessments, Escherichia coli, Fecal Coliform Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County Section 8. Qualified personnel The following personnel are responsible for inspections; Provide the name, telephone number, and qualifications of the qualified personnel conducting inspections.) Nat Perkins - (434)982-5304 - Owner. This form will be transfered over when a contractor is selected for the project. Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 9. Signed Certification (Provide certification according to 9VAC25-870-370) CERTIFICATION "1 certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." Operator Name: Nat Perkins Company: University of Virginia Foundation Title: Real ate Project Manager Signature: Date: June 20, 2019 Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP)Albemarle County Section 10. Delegation of authority. (Provide the persons or positions with authority to sign inspection reports or to modify the stormwater pollution prevention plan. A (brand. signed delegation of authority is needed,) Delegation of Authority 1,Nat Perkins (name),hereby designate the person or specifically described position below to be a duly authorized representative for the purpose of overseeing compliance with environmental requirements,including the Construction General Permit, at the UVA Foundation Tennis Facility construction site.The designee is authorized to sign any reports,stormwater pollution prevention plans and all other documents required by the permit. (name of person or position) (company) (address) (city,state,zip) (phone) By signing this authorization,I confirm that I meet the requirements to make such a designation as set forth in the Construction General Permit(CGP),and that the designee above meets the definition of a"duly authorized representative". Operator Name: Nat Perkins Company: University of Virginia Foundation Title: Real E Project Manager Signature: Date: June 20,2019 Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP)Albemarle County Section 11. General permit copy (Provide a copy of the construction general permit, 9VAC25-880) Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP)Albemarle County A COMMONWEALTH of VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY General Permit No.: VAR10 Effective Date: July 1, 2014 Expiration Date: June 30, 2019 GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION ACTIVITIES AUTHORIZATION TO DISCHARGE UNDER THE VIRGINIA STORMWATER MANAGEMENT PROGRAM AND THE VIRGINIA STORMWATER MANAGEMENT ACT In compliance with the provisions of the Clean Water Act, as amended, and pursuant to the Virginia Stormwater Management Act and regulations adopted pursuant thereto, operators of construction activities are authorized to discharge to surface waters within the boundaries of the Commonwealth of Virginia, except those specifically named in State Water Control Board regulations that prohibit such discharges. The authorized discharge shall be in accordance with this cover page, Part I - Discharge Authorization and Special Conditions, Part II - Stormwater Pollution Prevention Plan, and Part III - Conditions Applicable to All VPDES Permits as set forth herein. General Permit No.: VAR10 Page 1 of 23 PART I DISCHARGE AUTHORIZATION AND SPECIAL CONDITIONS A. Coverage under this general permit. 1. During the period beginning with the date of coverage under this general permit and lasting until the general permit's expiration date, the operator is authorized to discharge stormwater from construction activities. 2. This general permit also authorizes stormwater discharges from support activities (e.g., concrete or asphalt batch plants, equipment staging yards, material storage areas, excavated material disposal areas, borrow areas) located on-site or off-site provided that: a. The support activity is directly related to the construction activity that is required to have general permit coverage for discharges of stormwater from construction activities; b. The support activity is not a commercial operation, nor does it serve multiple unrelated construction activities by different operators; c. The support activity does not operate beyond the completion of the last construction activity it supports; d. The support activity is identified in the registration statement at the time of general permit coverage; e. Appropriate control measures are identified in a stormwater pollution prevention plan and implemented to address the discharges from the support activity areas; and f. All applicable state, federal, and local approvals are obtained for the support activity. B. Limitations on coverage. 1. Post-construction discharges. This general permit does not authorize stormwater discharges that originate from the site after construction activities have been completed and the site, including any support activity sites covered under the general permit registration, has undergone final stabilization. Post-construction industrial stormwater discharges may need to be covered by a separate VPDES permit. 2. Discharges mixed with nonstormwater. This general permit does not authorize discharges that are mixed with sources of nonstormwater, other than those discharges that are identified in Part I E (Authorized nonstormwater discharges)and are in compliance with this general permit. 3. Discharges covered by another state permit. This general permit does not authorize discharges of stormwater from construction activities that have been covered under an individual permit or required to obtain coverage under an alternative general permit. 4. Impaired waters and TMDL limitation. Discharges of stormwater from construction activities to surface waters identified as impaired in the 2012 § 305(b)/303(d) Water Quality Assessment Integrated Report or for which a TMDL wasteload allocation has been established and approved prior to the term of this general permit for (i) sediment or a sediment-related parameter (i.e., total suspended solids or turbidity) or(ii) nutrients (i.e., nitrogen or phosphorus) are not eligible for coverage under this general permit unless the operator develops, implements, and maintains a SWPPP that minimizes the pollutants of concern and, when applicable, is consistent with the assumptions and requirements of the approved TMDL wasteload allocations. In addition, the operator shall implement the following items: General Permit No.: VAR10 Page 2 of 23 a. The impaired water(s), approved TMDL(s), and pollutant(s) of concern, when applicable, shall be identified in the SWPPP; b. Permanent or temporary soil stabilization shall be applied to denuded areas within seven days after final grade is reached on any portion of the site; c. Nutrients shall be applied in accordance with manufacturer's recommendations or an approved nutrient management plan and shall not be applied during rainfall events; and d. The applicable SWPPP inspection requirements specified in Part II F 2 shall be amended as follows: (1) Inspections shall be conducted at a frequency of(i) at least once every four business days or (ii) at least once every five business days and no later than 48 hours following a measurable storm event. In the event that a measurable storm event occurs when there are more than 48 hours between business days, the inspection shall be conducted on the next business day; and (2) Representative inspections used by utility line installation, pipeline construction, or other similar linear construction activities shall inspect all outfalls discharging to surface waters identified as impaired or for which a TMDL wasteload allocation has been established and approved prior to the term of this general permit. 5. Exceptional waters limitation. Discharges of stormwater from construction activities not previously covered under the general permit issued in 2009 to exceptional waters identified in 9VAC25-260-30 A 3 c are not eligible for coverage under this general permit unless the operator implements the following: a. The exceptional water(s) shall be identified in the SWPPP; b. Permanent or temporary soil stabilization shall be applied to denuded areas within seven days after final grade is reached on any portion of the site; c. Nutrients shall be applied in accordance with manufacturer's recommendations or an approved nutrient management plan and shall not be applied during rainfall events; and d. The applicable SWPPP inspection requirements specified in Part II F 2 shall be amended as follows: (1) Inspections shall be conducted at a frequency of(i) at least once every four business days or (ii) at least once every five business days and no later than 48 hours following a measurable storm event. In the event that a measurable storm event occurs when there are more than 48 hours between business days, the inspection shall be conducted on the next business day; and (2) Representative inspections used by utility line installation, pipeline construction, or other similar linear construction activities shall inspect all outfalls discharging to exceptional waters. 6. There shall be no discharge of floating solids or visible foam in other than trace amounts. C. Commingled discharges. Discharges authorized by this general permit may be commingled with other sources of stormwater that are not required to be covered under a state permit, so long as the commingled discharge is in compliance with this general permit. Discharges authorized by a separate state or VPDES permit may be commingled with discharges authorized by this general permit so long as all such discharges comply with all applicable state and VPDES permit requirements. General Permit No.: VAR10 Page 3 of 23 D. Prohibition of nonstormwater discharges. Except as provided in Parts I A 2, I C, and I E, all discharges covered by this general permit shall be composed entirely of stormwater associated with construction activities. All other discharges including the following are prohibited: 1. Wastewater from washout of concrete; 2. Wastewater from the washout and cleanout of stucco, paint, form release oils, curing compounds, and other construction materials; 3. Fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance; 4. Oils, toxic substances, or hazardous substances from spills or other releases; and 5. Soaps, solvents, or detergents used in equipment and vehicle washing. E. Authorized nonstormwater discharges. The following nonstormwater discharges from construction activities are authorized by this general permit when discharged in compliance with this general permit: 1. Discharges from firefighting activities; 2. Fire hydrant flushings; 3. Waters used to wash vehicles or equipment where soaps, solvents, or detergents have not been used and the wash water has been filtered, settled, or similarly treated prior to discharge; 4. Water used to control dust that has been filtered, settled, or similarly treated prior to discharge; 5. Potable water sources, including uncontaminated waterline flushings; 6. Routine external building wash down where soaps, solvents or detergents have not been used and the wash water has been filtered, settled, or similarly treated prior to discharge; 7. Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred (or where all spilled or leaked material has been removed prior to washing); where soaps, solvents, or detergents have not been used; and where the wash water has been filtered, settled, or similarly treated prior to discharge; 8. Uncontaminated air conditioning or compressor condensate; 9. Uncontaminated ground water or spring water; 10. Foundation or footing drains where flows are not contaminated with process materials such as solvents; 11. Uncontaminated excavation dewatering, including dewatering of trenches and excavations that have been filtered, settled, or similarly treated prior to discharge; and 12. Landscape irrigation. F. Termination of general permit coverage. 1. The operator of the construction activity shall submit a notice of termination in accordance with 9VAC25-880-60 to the VSMP authority after one or more of the following conditions have been met: General Permit No.: VAR10 Page 4 of 23 a. Necessary permanent control measures included in the SWPPP for the site are in place and functioning effectively and final stabilization has been achieved on all portions of the site for which the operator is responsible. When applicable, long term responsibility and maintenance requirements shall be recorded in the local land records prior to the submission of a notice of termination; b. Another operator has assumed control over all areas of the site that have not been finally stabilized and obtained coverage for the ongoing discharge; c. Coverage under an alternative VPDES or state permit has been obtained; or d. For residential construction only, temporary soil stabilization has been completed and the residence has been transferred to the homeowner. 2. The notice of termination should be submitted no later than 30 days after one of the above conditions in subdivision 1 of this subsection is met. Authorization to discharge terminates at midnight on the date that the notice of termination is submitted for the conditions set forth in subdivisions 1 b through 1 d of this subsection. Termination of authorizations to discharge for the conditions set forth in subdivision 1 a of this subsection shall be effective upon notification from the department that the provisions of subdivision 1 a of this subsection have been met or 60 days after submittal of the notice of termination, whichever occurs first. 3. The notice of termination shall be signed in accordance with Part III K of this general permit. G.Water quality protection. 1. The operator must select, install, implement and maintain control measures as identified in the SWPPP at the construction site that minimize pollutants in the discharge as necessary to ensure that the operator's discharge does not cause or contribute to an excursion above any applicable water quality standard. 2. If it is determined by the department that the operator's discharges are causing, have reasonable potential to cause, or are contributing to an excursion above any applicable water quality standard, the department, in consultation with the VSMP authority, may take appropriate enforcement action and require the operator to: a. Modify or implement additional control measures in accordance with Part II B to adequately address the identified water quality concerns; b. Submit valid and verifiable data and information that are representative of ambient conditions and indicate that the receiving water is attaining water quality standards; or c. Submit an individual permit application in accordance with 9VAC25-870-410 B 3. All written responses required under this chapter must include a signed certification consistent with Part III K. General Permit No.: VAR10 Page 5 of 23 PART II STORMWATER POLLUTION PREVENTION PLAN A stormwater pollution prevention plan (SWPPP) shall be developed prior to the submission of a registration statement and implemented for the construction activity, including any support activity, covered by this general permit. SWPPPs shall be prepared in accordance with good engineering practices. Construction activities that are part of a larger common plan of development or sale and disturb less than one acre may utilize a SWPPP template provided by the department and need not provide a separate stormwater management plan if one has been prepared and implemented for the larger common plan of development or sale. The SWPPP requirements of this general permit may be fulfilled by incorporating by reference other plans such as a spill prevention control and countermeasure (SPCC) plan developed for the site under§ 311 of the federal Clean Water Act or best management practices (BMP) programs otherwise required for the facility provided that the incorporated plan meets or exceeds the SWPPP requirements of Part II A. All plans incorporated by reference into the SWPPP become enforceable under this general permit. If a plan incorporated by reference does not contain all of the required elements of the SWPPP, the operator must develop the missing elements and include them in the SWPPP. Any operator that was authorized to discharge under the general permit issued in 2009, and that intends to continue coverage under this general permit, shall update its stormwater pollution prevention plan to comply with the requirements of this general permit no later than 60 days after the date of coverage under this general permit. A. Stormwater pollution prevention plan contents. The SWPPP shall include the following items: 1. General information. a. A signed copy of the registration statement, if required, for coverage under the general VPDES permit for discharges of stormwater from construction activities; b. Upon receipt, a copy of the notice of coverage under the general VPDES permit for discharges of stormwater from construction activities (i.e., notice of coverage letter); c. Upon receipt, a copy of the general VPDES permit for discharges of stormwater from construction activities; d. A narrative description of the nature of the construction activity, including the function of the project(e.g., low density residential, shopping mall, highway, etc.); e. A legible site plan identifying: (1) Directions of stormwater flow and approximate slopes anticipated after major grading activities; (2) Limits of land disturbance including steep slopes and natural buffers around surface waters that will not be disturbed; (3) Locations of major structural and nonstructural control measures, including sediment basins and traps, perimeter dikes, sediment barriers, and other measures intended to filter, settle, or similarly treat sediment, that will be installed between disturbed areas and the undisturbed vegetated areas in order to increase sediment removal and maximize stormwater infiltration; (4) Locations of surface waters; General Permit No.: VAR10 Page 6 of 23 (5) Locations where concentrated stormwater is discharged; (6) Locations of support activities, when applicable and when required by the VSMP authority, including but not limited to (i) areas where equipment and vehicle washing, wheel wash water, and other wash water is to occur; (ii) storage areas for chemicals such as acids, fuels, fertilizers, and other lawn care chemicals; (iii) concrete wash out areas; (iv) vehicle fueling and maintenance areas; (v) sanitary waste facilities, including those temporarily placed on the construction site; and (vi) construction waste storage; and (7) When applicable, the location of the on-site rain gauge or the methodology established in consultation with the VSMP authority used to identify measurable storm events for inspection purposes. 2. Erosion and sediment control plan. a. An erosion and sediment control plan approved by the VESCP authority as authorized under the Erosion and Sediment Control Regulations (9VAC25-840), an "agreement in lieu of a plan" as defined in 9VAC25-840-10 from the VESCP authority, or an erosion and sediment control plan prepared in accordance with annual standards and specifications approved by the department. Any operator proposing a new stormwater discharge from construction activities that is not required to obtain erosion and sediment control plan approval from a VESCP authority or does not adopt department-approved annual standards and specifications shall submit the erosion and sediment control plan to the department for review and approval. b. All erosion and sediment control plans shall include a statement describing the maintenance responsibilities required for the erosion and sediment controls used. c. A properly implemented approved erosion and sediment control plan, "agreement in lieu of a plan," or erosion and sediment control plan prepared in accordance with department-approved annual standards and specifications, adequately: (1) Controls the volume and velocity of stormwater runoff within the site to minimize soil erosion; (2) Controls stormwater discharges, including peak flow rates and total stormwater volume, to minimize erosion at outlets and to minimize downstream channel and stream bank erosion; (3) Minimizes the amount of soil exposed during the construction activity; (4) Minimizes the disturbance of steep slopes; (5) Minimizes sediment discharges from the site in a manner that addresses (i) the amount, frequency, intensity, and duration of precipitation; (ii) the nature of resulting stormwater runoff; and (iii) soil characteristics, including the range of soil particle sizes present on the site; (6) Provides and maintains natural buffers around surface waters, directs stormwater to vegetated areas to increase sediment removal, and maximizes stormwater infiltration, unless infeasible; (7) Minimizes soil compaction and, unless infeasible, preserves topsoil; (8) Ensures that stabilization of disturbed areas will be initiated immediately whenever any clearing, grading, excavating, or other land-disturbing activities have permanently ceased on any portion of the site, or temporarily ceased on any portion of the site and will not resume for a period exceeding 14 days; and General Permit No.: VAR10 Page 7 of 23 (9) Utilizes outlet structures that withdraw stormwater from the surface (i.e., above the permanent pool or wet storage water surface elevation), unless infeasible, when discharging from sediment basins or sediment traps. 3. Stormwater management plan. a. New construction activities. A stormwater management plan approved by the VSMP authority as authorized under the Virginia Stormwater Management Program (VSMP) Regulation (9VAC25- 870), or an "agreement in lieu of a stormwater management plan" as defined in 9VAC25-870-10 from the VSMP authority, or a stormwater management plan prepared in accordance with annual standards and specifications approved by the department. Any operator proposing a new stormwater discharge from construction activities that is not required to obtain stormwater management plan approval from a VSMP authority or does not adopt department-approved annual standards and specifications shall submit the stormwater management plan to the department for review and approval. b. Existing construction activities. Any operator that was authorized to discharge under the general permit issued in 2009, and that intends to continue coverage under this general permit, shall ensure compliance with the requirements of 9VAC25-870-93 through 9VAC25-870-99 of the VSMP Regulation, including but not limited to the water quality and quantity requirements. The SWPPP shall include a description of, and all necessary calculations supporting, all post- construction stormwater management measures that will be installed prior to the completion of the construction process to control pollutants in stormwater discharges after construction operations have been completed. Structural measures should be placed on upland soils to the degree possible. Such measures must be designed and installed in accordance with applicable VESCP authority, VSMP authority, state, and federal requirements, and any necessary permits must be obtained. 4. Pollution prevention plan. A pollution prevention plan that addresses potential pollutant-generating activities that may reasonably be expected to affect the quality of stormwater discharges from the construction activity, including any support activity. The pollution prevention plan shall: a. Identify the potential pollutant-generating activities and the pollutant that is expected to be exposed to stormwater; b. Describe the location where the potential pollutant-generating activities will occur, or if identified on the site plan, reference the site plan; c. Identify all nonstormwater discharges, as authorized in Part I E of this general permit, that are or will be commingled with stormwater discharges from the construction activity, including any applicable support activity; d. Identify the person responsible for implementing the pollution prevention practice or practices for each pollutant-generating activity(if other than the person listed as the qualified personnel); e. Describe the pollution prevention practices and procedures that will be implemented to: (1) Prevent and respond to leaks, spills, and other releases including (i) procedures for expeditiously stopping, containing, and cleaning up spills, leaks, and other releases; and (ii) procedures for reporting leaks, spills, and other releases in accordance with Part III G; (2) Prevent the discharge of spilled and leaked fuels and chemicals from vehicle fueling and maintenance activities (e.g., providing secondary containment such as spill berms, decks, spill containment pallets, providing cover where appropriate, and having spill kits readily available); General Permit No.: VAR10 Page 8 of 23 (3) Prevent the discharge of soaps, solvents, detergents, and wash water from construction materials, including the clean-up of stucco, paint, form release oils, and curing compounds (e.g., providing (i) cover (e.g., plastic sheeting or temporary roofs) to prevent contact with stormwater; (ii) collection and proper disposal in a manner to prevent contact with stormwater; and (iii) a similarly effective means designed to prevent discharge of these pollutants); (4) Minimize the discharge of pollutants from vehicle and equipment washing, wheel wash water, and other types of washing (e.g., locating activities away from surface waters and stormwater inlets or conveyance and directing wash waters to sediment basins or traps, using filtration devices such as filter bags or sand filters, or using similarly effective controls); (5) Direct concrete wash water into a leak-proof container or leak-proof settling basin. The container or basin shall be designed so that no overflows can occur due to inadequate sizing or precipitation. Hardened concrete wastes shall.be removed and disposed of in a manner consistent with the handling of other construction wastes. Liquid concrete wastes shall be removed and disposed of in a manner consistent with the handling of other construction wash waters and shall not be discharged to surface waters; (6) Minimize the discharge of pollutants from storage, handling, and disposal of construction products, materials, and wastes including (i) building products such as asphalt sealants, copper flashing, roofing materials, adhesives, and concrete admixtures; (ii) pesticides, herbicides, insecticides, fertilizers, and landscape materials; and (iii) construction and domestic wastes such as packaging materials, scrap construction materials, masonry products, timber, pipe and electrical cuttings, plastics, Styrofoam, concrete, and other trash or building materials; (7) Prevent the discharge of fuels, oils, and other petroleum products, hazardous or toxic wastes, and sanitary wastes; and (8) Address any other discharge from the potential pollutant-generating activities not addressed above; and f. Describe procedures for providing pollution prevention awareness of all applicable wastes, including any wash water, disposal practices, and applicable disposal locations of such wastes, to personnel in order to comply with the conditions of this general permit. The operator shall implement the procedures described in the SWPPP. 5. SWPPP requirements for discharges to impaired waters, surface waters with an applicable TMDL wasteload allocation established and approved prior to the term of this general permit, and exceptional waters. The SWPPP shall: a. Identify the impaired water(s), approved TMDL(s), pollutant(s) of concern, and exceptional waters identified in 9VAC25-260-30 A 3 c, when applicable; b. Provide clear direction that: (1) Permanent or temporary soil stabilization shall be applied to denuded areas within seven days after final grade is reached on any portion of the site; (2) Nutrients shall be applied in accordance with manufacturer's recommendations or an approved nutrient management plan and shall not be applied during rainfall events; and (3) A modified inspection schedule shall be implemented in accordance with Part I B 4 or Part I B 5. General Permit No.: VAR10 Page 9 of 23 6. Qualified personnel. The name, phone number, and qualifications of the qualified personnel conducting inspections required by this general permit. 7. Delegation of authority. The individuals or positions with delegated authority, in accordance with Part III K, to sign inspection reports or modify the SWPPP. 8. SWPPP signature. The SWPPP shall be signed and dated in accordance with Part III K. B. SWPPP amendments, modification, and updates. 1. The operator shall amend the SWPPP whenever there is a change in the design, construction, operation, or maintenance that has a significant effect on the discharge of pollutants to surface waters and that has not been previously addressed in the SWPPP. 2. The SWPPP must be amended if, during inspections or investigations by the operator's qualified personnel, or by local, state, or federal officials, it is determined that the existing control measures are ineffective in minimizing pollutants in discharges from the construction activity. Revisions to the SWPPP shall include additional or modified control measures designed and implemented to correct problems identified. If approval by the VESCP authority, VSMP authority, or department is necessary for the control measure, revisions to the SWPPP shall be completed no later than seven calendar days following approval. Implementation of these additional or modified control measures must be accomplished as described in Part II G. 3. The SWPPP must clearly identify the contractor(s) that will implement and maintain each control measure identified in the SWPPP. The SWPPP shall be amended to identify any new contractor that will implement and maintain a control measure. 4. The operator shall update the SWPPP no later than seven days following any modification to its implementation. All modifications or updates to the SWPPP shall be noted and shall include the following items: a. A record of dates when: (1) Major grading activities occur; (2) Construction activities temporarily or permanently cease on a portion of the site; and (3) Stabilization measures are initiated; b. Documentation of replaced or modified controls where periodic inspections or other information have indicated that the controls have been used inappropriately or incorrectly and where modified as soon as possible; c. Areas that have reached final stabilization and where no further SWPPP or inspection requirements apply; d. All properties that are no longer under the legal control of the operator and the dates on which the operator no longer had legal control over each property; e. The date of any prohibited discharges, the discharge volume released, and what actions were taken to minimize the impact of the release; f. Measures taken to prevent the reoccurrence of any prohibited discharge; and g. Measures taken to address any evidence identified as a result of an inspection required under Part II F. General Permit No.: VAR10 Page 10 of 23 5. Amendments, modifications, or updates to the SWPPP shall be signed in accordance with Part III K. C. Public Notification. Upon commencement of land disturbance, the operator shall post conspicuously a copy of the notice of coverage letter near the main entrance of the construction activity. For linear projects, the operator shall post the notice of coverage letter at a publicly accessible location near an active part of the construction project (e.g., where a pipeline crosses a public road). The operator shall maintain the posted information until termination of general permit coverage as specified in Part I F. D. SWPPP availability. 1. Operators with day-to-day operational control over SWPPP implementation shall have a copy of the SWPPP available at a central location on-site for use by those identified as having responsibilities under the SWPPP whenever they are on the construction site. 2. The operator shall make the SWPPP and all amendments, modifications, and updates available upon request to the department, the VSMP authority, the EPA, the VESCP authority, local government officials, or the operator of a municipal separate storm sewer system receiving discharges from the construction activity. If an on-site location is unavailable to store the SWPPP when no personnel are present, notice of the SWPPP's location must be posted near the main entrance of the construction site. 3. The operator shall make the SWPPP available for public review in an electronic format or in hard copy. Information for public access to the SWPPP shall be posted and maintained in accordance with Part II C. If not provided electronically, public access to the SWPPP may be arranged upon request at a time and at a publicly accessible location convenient to the operator or his designee but shall be no less than once per month and shall be during normal business hours. Information not required to be contained within the SWPPP by this general permit is not required to be released. E. SWPPP implementation. The operator shall implement the SWPPP and subsequent amendments, modifications, and updates from commencement of land disturbance until termination of general permit coverage as specified in Part I F. 1. All control measures must be properly maintained in effective operating condition in accordance with good engineering practices and, where applicable, manufacturer specifications. If a site inspection required by Part II F identifies a control measure that is not operating effectively, corrective action(s) shall be completed as soon as practicable, but no later than seven days after discovery or a longer period as established by the VSMP authority, to maintain the continued effectiveness of the control measures. 2. If site inspections required by Part II F identify an existing control measure that needs to be modified or if an additional control measure is necessary for any reason, implementation shall be completed prior to the next anticipated measurable storm event. If implementation prior to the next anticipated measurable storm event is impracticable, then alternative control measures shall be implemented as soon as practicable, but no later than seven days after discovery or a longer period as established by the VSMP authority. F. SWPPP Inspections. 1. Personnel responsible for on-site and off-site inspections. Inspections required by this general permit shall be conducted by the qualified personnel identified by the operator in the SWPPP. The operator is responsible for insuring that the qualified personnel conduct the inspection. 2. Inspection schedule. a. Inspections shall be conducted at a frequency of: General Permit No.: VAR10 Page 11 of 23 (1) At least once every five business days; or (2) At least once every 10 business days and no later than 48 hours following a measurable storm event. In the event that a measurable storm event occurs when there are more than 48 hours between business days, the inspection shall be conducted no later than the next business day. b. Where areas have been temporarily stabilized or land-disturbing activities will be suspended due to continuous frozen ground conditions and stormwater discharges are unlikely, the inspection frequency may be reduced to once per month. If weather conditions (such as above freezing temperatures or rain or snow events) make discharges likely, the operator shall immediately resume the regular inspection frequency. c. Representative inspections may be utilized for utility line installation, pipeline construction, or other similar linear construction activities provided that: (1) Temporary or permanent soil stabilization has been installed and vehicle access may compromise the temporary or permanent soil stabilization and potentially cause additional land disturbance increasing the potential for erosion; (2) Inspections occur on the same frequency as other construction activities; (3) Control measures are inspected along the construction site 0.25 miles above and below each access point (i.e., where a roadway, undisturbed right-of-way, or other similar feature intersects the construction activity and access does not compromise temporary or permanent soil stabilization); and (4) Inspection locations are provided in the report required by Part II F. 3. Inspection requirements. a. As part of the inspection, the qualified personnel shall: (1) Record the date and time of the inspection and when applicable the date and rainfall amount of the last measurable storm event; (2) Record the information and a description of any discharges occurring at the time of the inspection; (3) Record any land-disturbing activities that have occurred outside of the approved erosion and sediment control plan; (4) Inspect the following for installation in accordance with the approved erosion and sediment control plan, identification of any maintenance needs, and evaluation of effectiveness in minimizing sediment discharge, including whether the control has been inappropriately or incorrectly used: (a) All perimeter erosion and sediment controls, such as silt fence; (b) Soil stockpiles, when applicable, and borrow areas for stabilization or sediment trapping measures; (c) Completed earthen structures, such as dams, dikes, ditches, and diversions for stabilization; General Permit No.: VAR10 Page 12 of 23 (d) Cut and fill slopes; (e) Sediment basins and traps, sediment barriers, and other measures installed to control sediment discharge from stormwater; (f) Temporary or permanent channel, flume, or other slope drain structures installed to convey concentrated runoff down cut and fill slopes; (g) Storm inlets that have been made operational to ensure that sediment laden stormwater does not enter without first being filtered or similarly treated; and (h) Construction vehicle access routes that intersect or access paved roads for minimizing sediment tracking; (5) Inspect areas that have reached final grade or that will remain dormant for more than 14 days for initiation of stabilization activities; (6) Inspect areas that have reached final grade or that will remain dormant for more than 14 days for completion of stabilization activities within seven days of reaching grade or stopping work; (7) Inspect for evidence that the approved erosion and sediment control plan, "agreement in lieu of a plan," or erosion and sediment control plan prepared in accordance with department- approved annual standards and specifications has not been properly implemented. This includes but is not limited to: (a) Concentrated flows of stormwater in conveyances such as rills, rivulets or channels that have not been filtered, settled, or similarly treated prior to discharge, or evidence thereof; (b) Sediment laden or turbid flows of stormwater that have not been filtered or settled to remove sediments prior to discharge; (c) Sediment deposition in areas that drain to unprotected stormwater inlets or catch basins that discharge to surface waters. Inlets and catch basins with failing sediments controls due to improper installation, lack of maintenance, or inadequate design are considered unprotected; (d) Sediment deposition on any property (including public and private streets) outside of the construction activity covered by this general permit; (e) Required stabilization has not been initiated or completed on portions of the site; (f) Sediment basins without adequate wet or dry storage volume or sediment basins that allow the discharge of stormwater from below the surface of the wet storage portion of the basin; (g) Sediment traps without adequate wet or dry storage or sediment traps that allow the discharge of stormwater from below the surface of the wet storage portion of the trap; and (h) Land disturbance outside of the approved area to be disturbed; (8) Inspect pollutant generating activities identified in the pollution prevention plan for the proper implementation, maintenance and effectiveness of the procedures and practices; (9) Identify any pollutant generating activities not identified in the pollution prevention plan; and General Permit No.: VAR10 Page 13 of 23 (10) Identify and document the presence of any evidence of the discharge of pollutants prohibited by this general permit. 4. Inspection report. Each inspection report shall include the following items: a. The date and time of the inspection and when applicable, the date and rainfall amount of the last measurable storm event; b. Summarized findings of the inspection; c. The location(s) of prohibited discharges; d. The location(s) of control measures that require maintenance; e. The location(s) of control measures that failed to operate as designed or proved inadequate or inappropriate for a particular location; f. The location(s)where any evidence identified under Part II F 3 a (7)exists; g. The location(s) where any additional control measure is needed that did not exist at the time of inspection; h. A list of corrective actions required (including any changes to the SWPPP that are necessary) as a result of the inspection or to maintain permit compliance; i. Documentation of any corrective actions required from a previous inspection that have not been implemented; and j. The date and signature of the qualified personnel and the operator or its duly authorized representative. The inspection report and any actions taken in accordance with Part II must be retained by the operator as part of the SWPPP for at least three years from the date that general permit coverage expires or is terminated. The inspection report shall identify any incidents of noncompliance. Where an inspection report does not identify any incidents of noncompliance, the report shall contain a certification that the construction activity is in compliance with the SWPPP and this general permit. The report shall be signed in accordance with Part III K of this general permit. G. Corrective actions. 1. The operator shall implement the corrective action(s) identified as a result of an inspection as soon as practicable but no later than seven days after discovery or a longer period as approved by the VSMP authority. If approval of a corrective action by a regulatory authority (e.g., VSMP authority, VESCP authority, or the department) is necessary, additional control measures shall be implemented to minimize pollutants in stormwater discharges until such approvals can be obtained. 2. The operator may be required to remove accumulated sediment deposits located outside of the construction activity covered by this general permit as soon as practicable in order to minimize environmental impacts. The operator shall notify the VSMP authority and the department as well as obtain all applicable federal, state, and local authorizations, approvals, and permits prior to the removal of sediments accumulated in surface waters including wetlands. General Permit No.: VAR10 Page 14 of 23 PART III CONDITIONS APPLICABLE TO ALL VPDES PERMITS NOTE: Discharge monitoring is not required for this general permit. If the operator chooses to monitor stormwater discharges or control measures, the operator must comply with the requirements of subsections A, B, and C, as appropriate. A. Monitoring. 1. Samples and measurements taken for the purpose of monitoring shall be representative of the monitoring activity. 2. Monitoring shall be conducted according to procedures approved under 40 CFR Part 136 or alternative methods approved by the U.S. Environmental Protection Agency, unless other procedures have been specified in this general permit. Analyses performed according to test procedures approved under 40 CFR Part 136 shall be performed by an environmental laboratory certified under regulations adopted by the Department of General Services (1VAC30-45 or 1VAC30-46). 3. The operator shall periodically calibrate and perform maintenance procedures on all monitoring and analytical instrumentation at intervals that will ensure accuracy of measurements. B. Records. 1. Monitoring records and reports shall include: a. The date, exact place, and time of sampling or measurements; b. The individual(s)who performed the sampling or measurements; c. The date(s)and time(s)analyses were performed; d. The individual(s)who performed the analyses; e. The analytical techniques or methods used; and f. The results of such analyses. 2. The operator shall retain records of all monitoring information, including all calibration and maintenance records and all original strip chart recordings for continuous monitoring instrumentation, copies of all reports required by this general permit, and records of all data used to complete the registration statement for this general permit, for a period of at least three years from the date of the sample, measurement, report or request for coverage. This period of retention shall be extended automatically during the course of any unresolved litigation regarding the regulated activity or regarding control standards applicable to the operator, or as requested by the board. C. Reporting monitoring results. 1. The operator shall update the SWPPP to include the results of the monitoring as may be performed in accordance with this general permit, unless another reporting schedule is specified elsewhere in this general permit. 2. Monitoring results shall be reported on a discharge monitoring report (DMR); on forms provided, approved or specified by the department; or in any format provided that the date, location, parameter, method, and result of the monitoring activity are included. General Permit No.: VAR10 Page 15 of 23 3. If the operator monitors any pollutant specifically addressed by this general permit more frequently than required by this general permit using test procedures approved under 40 CFR Part 136 or using other test procedures approved by the U.S. Environmental Protection Agency or using procedures specified in this general permit, the results of this monitoring shall be included in the calculation and reporting of the data submitted in the DMR or reporting form specified by the department. 4. Calculations for all limitations which require averaging of measurements shall utilize an arithmetic mean unless otherwise specified in this general permit. D. Duty to provide information. The operator shall furnish, within a reasonable time, any information which the board may request to determine whether cause exists for modifying, revoking and reissuing, or terminating this general permit or to determine compliance with this general permit. The board, department, EPA, or VSMP authority may require the operator to furnish, upon request, such plans, specifications, and other pertinent information as may be necessary to determine the effect of the wastes from his discharge on the quality of surface waters, or such other information as may be necessary to accomplish the purposes of the CWA and the Virginia Stormwater Management Act. The operator shall also furnish to the board, department, EPA, or VSMP authority, upon request, copies of records required to be kept by this general permit. E. Compliance schedule reports. Reports of compliance or noncompliance with, or any progress reports on, interim and final requirements contained in any compliance schedule of this general permit shall be submitted no later than 14 days following each schedule date. F. Unauthorized stormwater discharges. Pursuant to § 62.1-44.5 of the Code of Virginia, except in compliance with a state permit issued by the department, it shall be unlawful to cause a stormwater discharge from a construction activity. G. Reports of unauthorized discharges. Any operator who discharges or causes or allows a discharge of sewage, industrial waste, other wastes or any noxious or deleterious substance or a hazardous substance or oil in an amount equal to or in excess of a reportable quantity established under either 40 CFR Part 110, 40 CFR Part 117, 40 CFR Part 302, or § 62.1-44.34:19 of the Code of Virginia that occurs during a 24-hour period into or upon surface waters or who discharges or causes or allows a discharge that may reasonably be expected to enter surface waters, shall notify the Department of Environmental Quality of the discharge immediately upon discovery of the discharge, but in no case later than within 24 hours after said discovery. A written report of the unauthorized discharge shall be submitted to the department and the VSMP authority within five days of discovery of the discharge. The written report shall contain: 1. A description of the nature and location of the discharge; 2. The cause of the discharge; 3. The date on which the discharge occurred; 4. The length of time that the discharge continued; 5. The volume of the discharge; 6. If the discharge is continuing, how long it is expected to continue; 7. If the discharge is continuing, what the expected total volume of the discharge will be; and 8. Any steps planned or taken to reduce, eliminate and prevent a recurrence of the present discharge or any future discharges not authorized by this general permit. General Permit No.: VAR10 Page 16 of 23 Discharges reportable to the department and the VSMP authority under the immediate reporting requirements of other regulations are exempted from this requirement. H. Reports of unusual or extraordinary discharges. If any unusual or extraordinary discharge including a "bypass" or "upset," as defined herein, should occur from a facility and the discharge enters or could be expected to enter surface waters, the operator shall promptly notify, in no case later than within 24 hours, the department and the VSMP authority by telephone after the discovery of the discharge. This notification shall provide all available details of the incident, including any adverse effects on aquatic life and the known number of fish killed. The operator shall reduce the report to writing and shall submit it to the department and the VSMP authority within five days of discovery of the discharge in accordance with Part III 12. Unusual and extraordinary discharges include but are not limited to any discharge resulting from: 1. Unusual spillage of materials resulting directly or indirectly from processing operations; 2. Breakdown of processing or accessory equipment; 3. Failure or taking out of service of some or all of the facilities; and 4. Flooding or other acts of nature. I. Reports of noncompliance. The operator shall report any noncompliance which may adversely affect surface waters or may endanger public health. 1. An oral report to the department and the VSMP authority shall be provided within 24 hours from the time the operator becomes aware of the circumstances. The following shall be included as information that shall be reported within 24 hours under this subdivision: a. Any unanticipated bypass; and b. Any upset that causes a discharge to surface waters. 2. A written report shall be submitted within five days and shall contain: a. A description of the noncompliance and its cause; b. The period of noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; and c. Steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance. The department may waive the written report on a case-by-case basis for reports of noncompliance under Part III I if the oral report has been received within 24 hours and no adverse impact on surface waters has been reported. 3. The operator shall report all instances of noncompliance not reported under Part III 11 or 2 in writing as part of the SWPPP. The reports shall contain the information listed in Part III 12. NOTE: The reports required in Part III G, H and I shall be made to the department and the VSMP authority. Reports may be made by telephone, email, or by fax. For reports outside normal working hours, leaving a recorded message shall fulfill the immediate reporting requirement. For emergencies, the Virginia Department of Emergency Management maintains a 24-hour telephone service at 1-800-468- 8892. General Permit No.: VAR10 Page 17 of 23 4. Where the operator becomes aware of a failure to submit any relevant facts, or submittal of incorrect information in any report, including a registration statement, to the department or the VSMP authority, the operator shall promptly submit such facts or correct information. J. Notice of planned changes. 1. The operator shall give notice to the department and the VSMP authority as soon as possible of any planned physical alterations or additions to the permitted facility or activity. Notice is required only when: a. The operator plans an alteration or addition to any building, structure, facility, or installation that may meet one of the criteria for determining whether a facility is a new source in 9VAC25-870- 420; b. The operator plans an alteration or addition that would significantly change the nature or increase the quantity of pollutants discharged. This notification applies to pollutants that are not subject to effluent limitations in this general permit; or 2. The operator shall give advance notice to the department and VSMP authority of any planned changes in the permitted facility or activity, which may result in noncompliance with state permit requirements. K. Signatory requirements. 1. Registration statement. All registration statements shall be signed as follows: a. For a corporation: by a responsible corporate officer. For the purpose of this chapter, a responsible corporate officer means: (i) a president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy-making or decision-making functions for the corporation; or(ii) the manager of one or more manufacturing, production, or operating facilities, provided the manager is authorized to make management decisions that govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long-term compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for state permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures; b. For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or c. For a municipality, state, federal, or other public agency: by either a principal executive officer or ranking elected official. For purposes of this chapter, a principal executive officer of a public agency includes: (i) the chief executive officer of the agency or (ii) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency. 2. Reports, etc. All reports required by this general permit, including SWPPPs, and other information requested by the board or the department shall be signed by a person described in Part Ill K 1 or by a duly authorized representative of that person. A person is a duly authorized representative only if: a. The authorization is made in writing by a person described in Part Ill K 1; b. The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity such as the position of plant manager, operator of a well or a well field, superintendent, position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the operator. (A duly authorized General Permit No.: VAR10 Page 18 of 23 representative may thus be either a named individual or any individual occupying a named position); and c. The signed and dated written authorization is included in the SWPPP.A copy must be provided to the department and VSMP authority, if requested. 3. Changes to authorization. If an authorization under Part III K 2 is no longer accurate because a different individual or position has responsibility for the overall operation of the construction activity, a new authorization satisfying the requirements of Part III K 2 shall be submitted to the VSMP authority as the administering entity for the board prior to or together with any reports or information to be signed by an authorized representative. 4. Certification. Any person signing a document under Part III K 1 or 2 shall make the following certification: "I certify under penalty of law that I have read and understand this document and that this document and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." L. Duty to comply. The operator shall comply with all conditions of this general permit. Any state permit noncompliance constitutes a violation of the Virginia Stormwater Management Act and the Clean Water Act, except that noncompliance with certain provisions of this general permit may constitute a violation of the Virginia Stormwater Management Act but not the Clean Water Act. Permit noncompliance is grounds for enforcement action; for state permit termination, revocation and reissuance, or modification; or denial of a state permit renewal application. The operator shall comply with effluent standards or prohibitions established under § 307(a) of the Clean Water Act for toxic pollutants within the time provided in the regulations that establish these standards or prohibitions or standards for sewage sludge use or disposal, even if this general permit has not yet been modified to incorporate the requirement. M. Duty to reapply. If the operator wishes to continue an activity regulated by this general permit after the expiration date of this general permit, the operator shall submit a new registration statement at least 90 days before the expiration date of the existing general permit, unless permission for a later date has been granted by the board. The board shall not grant permission for registration statements to be submitted later than the expiration date of the existing general permit. N. Effect of a state permit. This general permit does not convey any property rights in either real or personal property or any exclusive privileges, nor does it authorize any injury to private property or invasion of personal rights, or any infringement of federal, state or local law or regulations. O. State law. Nothing in this general permit shall be construed to preclude the institution of any legal action under, or relieve the operator from any responsibilities, liabilities, or penalties established pursuant to any other state law or regulation or under authority preserved by§ 510 of the Clean Water Act. Except as provided in general permit conditions on "bypassing" (Part III U) and "upset" (Part III V), nothing in this general permit shall be construed to relieve the operator from civil and criminal penalties for noncompliance. P. Oil and hazardous substance liability. Nothing in this general permit shall be construed to preclude the institution of any legal action or relieve the operator from any responsibilities, liabilities, or penalties to which the operator is or may be subject under§§ 62.1-44.34:14 through 62.1-44.34:23 of the State Water Control Law or§ 311 of the Clean Water Act. General Permit No.: VAR10 Page 19 of 23 Q. Proper operation and maintenance. The operator shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances), which are installed or used by the operator to achieve compliance with the conditions of this general permit. Proper operation and maintenance also includes effective plant performance, adequate funding, adequate staffing, and adequate laboratory and process controls, including appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities or similar systems, which are installed by the operator only when the operation is necessary to achieve compliance with the conditions of this general permit. R. Disposal of solids or sludges. Solids, sludges or other pollutants removed in the course of treatment or management of pollutants shall be disposed of in a manner so as to prevent any pollutant from such materials from entering surface waters and in compliance with all applicable state and federal laws and regulations. S. Duty to mitigate. The operator shall take all steps to minimize or prevent any discharge in violation of this general permit that has a reasonable likelihood of adversely affecting human health or the environment. T. Need to halt or reduce activity not a defense. It shall not be a defense for an operator in an enforcement action that it would have been necessary to halt or reduce the permitted activity in order to maintain compliance with the conditions of this general permit. U. Bypass. 1. "Bypass," as defined in 9VAC25-870-10, means the intentional diversion of waste streams from any portion of a treatment facility. The operator may allow any bypass to occur that does not cause effluent limitations to be exceeded, but only if it also is for essential maintenance to ensure efficient operation. These bypasses are not subject to the provisions of Part III U 2 and 3. 2. Notice. a. Anticipated bypass. If the operator knows in advance of the need for a bypass, the operator shall submit prior notice to the department, if possible at least 10 days before the date of the bypass. b. Unanticipated bypass. The operator shall submit notice of an unanticipated bypass as required in Part III I. 3. Prohibition of bypass. a. Except as provided in Part III U 1, bypass is prohibited, and the board or department may take enforcement action against an operator for bypass unless: (1) Bypass was unavoidable to prevent loss of life, personal injury, or severe property damage. Severe property damage means substantial physical damage to property, damage to the treatment facilities that causes them to become inoperable, or substantial and permanent loss of natural resources that can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused by delays in production; (2) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes, or maintenance during normal periods of equipment downtime. This condition is not satisfied if adequate back-up equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass that occurred during normal periods of equipment downtime or preventive maintenance; and (3) The operator submitted notices as required under Part III U 2. General Permit No.: VAR10 Page 20 of 23 b. The department may approve an anticipated bypass, after considering its adverse effects, if the department determines that it will meet the three conditions listed in Part III U 3 a. V. Upset. 1. An "upset," as defined in 9VAC25-870-10, means an exceptional incident in which there is unintentional and temporary noncompliance with technology-based state permit effluent limitations because of factors beyond the reasonable control of the operator. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation. 2. An upset constitutes an affirmative defense to an action brought for noncompliance with technology- based state permit effluent limitations if the requirements of Part III V 4 are met. A determination made during administrative review of claims that noncompliance was caused by upset, and before an action for noncompliance, is not a final administrative action subject to judicial review. 3. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventative maintenance, or careless or improper operation. 4. An operator who wishes to establish the affirmative defense of upset shall demonstrate, through properly signed, contemporaneous operating logs or other relevant evidence that: a. An upset occurred and that the operator can identify the cause(s)of the upset; b. The permitted facility was at the time being properly operated; c. The operator submitted notice of the upset as required in Part III I; and d. The operator complied with any remedial measures required under Part III S. 5. In any enforcement proceeding, the operator seeking to establish the occurrence of an upset has the burden of proof. W. Inspection and entry. The operator shall allow the department as the board's designee, the VSMP authority, EPA, or an authorized representative of either entity (including an authorized contractor), upon presentation of credentials and other documents as may be required by law to: 1. Enter upon the operator's premises where a regulated facility or activity is located or conducted, or where records must be kept under the conditions of this general permit; 2. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this general permit; 3. Inspect and photograph at reasonable times any facilities, equipment (including monitoring and control equipment), practices, or operations regulated or required under this general permit; and 4. Sample or monitor at reasonable times, for the purposes of ensuring state permit compliance or as otherwise authorized by the Clean Water Act or the Virginia Stormwater Management Act, any substances or parameters at any location. For purposes of this section, the time for inspection shall be deemed reasonable during regular business hours, and whenever the facility is discharging. Nothing contained herein shall make an inspection unreasonable during an emergency. General Permit No.: VAR10 Page 21 of 23 X. State permit actions. State permits may be modified, revoked and reissued, or terminated for cause. The filing of a request by the operator for a state permit modification, revocation and reissuance, or termination, or a notification of planned changes or anticipated noncompliance does not stay any state permit condition. Y. Transfer of state permits. 1. State permits are not transferable to any person except after notice to the department. Except as provided in Part Ill Y 2, a state permit may be transferred by the operator to a new operator only if the state permit has been modified or revoked and reissued, or a minor modification made, to identify the new operator and incorporate such other requirements as may be necessary under the Virginia Stormwater Management Act and the Clean Water Act. 2. As an alternative to transfers under Part Ill Y 1, this state permit may be automatically transferred to a new operator if: a. The current operator notifies the department at least 30 days in advance of the proposed transfer of the title to the facility or property; b. The notice includes a written agreement between the existing and new operators containing a specific date for transfer of state permit responsibility, coverage, and liability between them; and c. The department does not notify the existing operator and the proposed new operator of its intent to modify or revoke and reissue the state permit. If this notice is not received, the transfer is effective on the date specified in the agreement mentioned in Part III Y 2 b. 3. For ongoing construction activity involving a change of operator, the new operator shall accept and maintain the existing SWPPP, or prepare and implement a new SWPPP prior to taking over operations at the site. Z. Severability. The provisions of this general permit are severable, and if any provision of this general permit or the application of any provision of this state permit to any circumstance, is held invalid, the application of such provision to other circumstances and the remainder of this general permit shall not be affected thereby. General Permit No.: VAR10 Page 22 of 23 DEFINITIONS "Business day" means Monday through Friday excluding state holidays. "Commencement of land disturbance" means the initial disturbance of soils associated with clearing, grading, or excavating activities or other construction activities (e.g., stockpiling of fill material). "Construction site" means the land where any land-disturbing activity is physically located or conducted, including any adjacent land used or preserved in connection with the land-disturbing activity. "Final stabilization" means that one of the following situations has occurred: 1. All soil disturbing activities at the site have been completed and a permanent vegetative cover has been established on denuded areas not otherwise permanently stabilized. Permanent vegetation shall not be considered established until a ground cover is achieved that is uniform (e.g., evenly distributed), mature enough to survive, and will inhibit erosion. 2. For individual lots in residential construction, final stabilization can occur by either: a. The homebuilder completing final stabilization as specified in subdivision 1 of this definition; or b. The homebuilder establishing temporary soil stabilization, including perimeter controls for an individual lot prior to occupation of the home by the homeowner, and informing the homeowner of the need for, and benefits of, final stabilization. 3. For construction projects on land used for agricultural purposes, final stabilization may be accomplished by returning the disturbed land to its preconstruction agricultural use. Areas disturbed that were not previously used for agricultural activities, such as buffer strips immediately adjacent to surface waters, and areas that are not being returned to their preconstruction agricultural use must meet the final stabilization criteria specified in subdivision 1 or 2 of this definition. "Immediately" means as soon as practicable, but no later than the end of the next business day, following the day when the land-disturbing activities have temporarily or permanently ceased. In the context of this general permit, "immediately" is used to define the deadline for initiating stabilization measures. "Impaired waters" means surface waters identified as impaired on the 2012 § 305(b)/303(d)Water Quality Assessment Integrated Report. "Infeasible" means not technologically possible or not economically practicable and achievable in light of best industry practices. "Initiation of stabilization activities" means: 1. Prepping the soil for vegetative or nonvegetative stabilization; 2. Applying mulch or other nonvegetative product to the exposed area; 3. Seeding or planting the exposed area; 4. Starting any of the above activities on a portion of the area to be stabilized, but not on the entire area; or 5. Finalizing arrangements to have the stabilization product fully installed in compliance with the applicable deadline for completing stabilization. This list is not exhaustive. General Permit No.: VAR10 Page 23 of 23 "Measurable storm event" means a rainfall event producing 0.25 inches of rain or greater over 24 hours. "Stabilized" means land that has been treated to withstand normal exposure to natural forces without incurring erosion damage. Section 12. Inspection logs Provide templates for your inspections. Requirements are listed in 9VAC25-880-70,Part II, section B and F.) VISUAL STORM WATER INSPECTION REPORT Date Jnspection Personnel Nature of Discharge Storm Water / Snow Melt (circle one) Tnspection Location Tnspection Time Temperature (°F) Conditions at Time of Humidity (%) Inspection Barometric Pressure (in Hg) Conditions Runoff Occurring Y I N Visual Quality of Observed Storm Water Color Odor Floating Solids Settled Solids Foam Oil Sheen Other Probable sources of any observed storm water contamination: BMPs in place (list) BMPs operating YIN (if no, explain) efficiently Storm Event Information Date of storm event (mm/dd/yr) Start Stop Duration of storm event (in hours) Storm Event Precipitation Total (inches) Duration between Storm Event Observed and Last Measurable Storm Event (days/hours) Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County POLLUTANT PREVENTION MEASURES INSPECTION REPORT University of Virginia Foundation Tennis Facility and Parking Lot Expansion (WP0201800059) Inspection Date/Time Inspector Name Inspecting Company Name Inspector Title Reason for Inspection: ❑ Regular Inspection 0 Pre-Rainfall Inspection 0 Re-Inspection 0 Post-Rainfall Inspection Has a sediment discharge occurred since the last inspection? 0 Yes 0 No Are the pollutant control measures in compliance with E&S regulations? 0 Yes 0 No Check only one box for each item listed below: (Check "N/A"only if the item does not apply to this project) Item Description In Compliance at the Time of Inspection SWPPP located on-site 0 Yes 0 No 0 N/A (contains all E&S control updates Construction Entrances 0 Yes 0 No 0 N/A Sediment Barriers 0 Yes 0 No 0 N/A Storage/Disposal Areas ❑ Yes 0 No 0 N/A Sediment Traps 0 Yes 0 No ' 0 N/A Check Dams 0 Yes 0 No 0 N/A Inlet Protection 0 Yes 0 No 0 N/A Tree Protection 0 Yes 0 No 0 N/A Silt or Super Silt Fence 0 Yes 0 No 0 N/A Diversion Dikes 0 Yes 0 No 0 N/A Stockpile Stabilization ❑ Yes 0 No 0 N/A Temporary Stabilization of Denuded El Yes 0 No 0 N/A Areas Is Temporary Stabilization Adequate 0 Yes 0 No 0 N/A Permanent Stabilization of Denuded 0 Yes 0 No ❑ N/A Areas b 4' 1:3i a s . 0 cA o 4 • CCD co 60 co c 0 CD G x o co 'CD d cD cr q b .� - g' - co E: co m • ,, • vvi ° O 2 0 Cr' co co ` g. mo w,, 0 • d CCD 0 0:9 N a'q y w r4 ,O_,y ►o Q* a o Apt no 0 '°� '�� °- • 0 P-i, z Po CI m: a. 0 O coo 0 C/� P-] '/� 2. ,y fi' �1• p t7 .• P CD r g 0 0 0 0 vOi n �.'C A� A ° n ,'yi 3�pv+ v) v0, CA CA c/a (D N g O ;; ) flo 0 C 5 pat' r .. o. i'y , " 'ts • v 0 O Do d 0 -' �. 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