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HomeMy WebLinkAboutWPO201000068 VSMP - SWPPP 2019-07-25 ,,�ArJi� COUNTY OF ALBEMARLE relkih.-7•e., Department of Community Development .�. I 401 McIntire Road,North Wing ,� �!, Charlottesville,Virginia 22902-4596 ,; , ;-; Tel. (434)296-5832 • Fax (434)972-4126 Stormwater Pollution Prevention Plan (SWPPP) For Construction Activities At: Project Name: ACSA Operations Expansion Parking Lot Expansion Address: 168 Spotnap Road Charlottesville, VA 22911 Prepared by: Name: Dewberry Engineers, Inc. Prepared for: Name: Alexander Morrison, Albemarle County Service Authority SWPPP Preparation Date: October 16, 2018 (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 ;- 29- 1i File v-v r c• "2-a i 9 c Cc,,..,53 Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County . CONTENTS: (from Albemarle County Code Sec. 17-405) 1. 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 VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY FOR OFFICE USE ONLY GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM ID Number: CONSTRUCTION ACTIVITIES (VAR10) Technical Criteria: IIB ❑ IIC ❑ REGISTRATION STATEMENT 2019 NEW ISSUANCE IXI RE-ISSUANCE ❑ MODIFICATION WITH ACREAGE INCREASE ❑ MODIFICATION WITHOUT ACREAGE INCREASE ❑ Existing Permit Coverage Number (if applicable,VAR10####): Section I. Operator/Permittee Information. A. Construction Activity Operator(Permittee). The person or entity that is applying for permit coverage and will have operational control over construction activities to ensure compliance with the general permit. A person with signatory authority for this operator must sign the certification in Section VI. (per Part III. K. of the VAR10 Permit). Construction Activity Operator Name: Albemarle County Service Authority Contact person: Alexander J. Morrison Address: 168 Spotnap Road City,State, Zip Code: Charlottesville, VA 22911 Phone Number: 434-977-4511 Primary Email: amorrison@serviceauthority.org CC Email: B. Billing Information (leave blank if same as the Operator identified in Section I.A. above). This entity will receive Annual Permit Maintenance and Permit Modification Fee invoices (if applicable). Name: Contact Person: Address: City, State Zip Code: Phone Number: Primary Email: CC Email: C. May we transmit correspondence electronically? You must choose YES and include a valid email in order to pay by credit card and to receive your permit coverage approval letter via email: YES ® NO ❑ Rev 04/2019 PAGE 1 17 CONSTRUCTION GENERAL PERMIT(VAR10) REGISTRATION STATEMENT 2019 Section II. Construction Activity Location Information. Project site information. A. Include a site map showing the location of the existing or proposed land-disturbing activities,the limits of land disturbance, construction entrances and all water bodies receiving stormwater discharges from the site. B. Construction Activity Name: ACSA Operations Expansion: Parking Lot Expansion Address: 168 Spotnap Road City and/or County and Zip Code: Charlottesville, VA 22911 Latitude and Longitude (6-digit,decimal degrees format): 38.0325 N, -78.4525 W C. Construction Activity Entrance Location (description,street address and/or latitude/longitude in decimal degrees): 38.0322 N, -78.4528 W Section III. Offsite Support Activity Location Information. List all offsite support activities to be included under this permit registration. Enter additional areas on a separate page. Offsite areas not included on this registration may need to obtain coverage under a separate VPDES permit. A. Offsite Activity Name: Address: City and/or County and Zip Code: Latitude and Longitude (6-digit,decimal degrees format): B. Offsite Activity Entrance Location (description,street address and/or latitude/longitude in decimal degrees): Section IV. Site Information. A. Acreage totals for all land-disturbing activities to be included under this B. Estimated Project Dates permit coverage. Report to the nearest one-hundredth of an acre. (MM/DD/YYYY) Total land area of development(including the entire 04/01/2019 area to be disturbed as approved in the Stormwater 0.57 Start date: Management Plan): Primary estimated area to be disturbed (portions with 0.57 09/01/2019 Erosion and Sediment Control Plan approval only): Completion date: Offsite estimated area to be disturbed (if applicable): C. Property Owner Status: FEDERAL ❑ STATE ❑ PUBLIC ❑ PRIVATE IX D. Nature of the Construction Activity Description (i.e. commercial, industrial, residential, agricultural, environmental): Commercial / Business E. Municipal Separate Storm Sewer System (MS4) name (if discharging to a MS4): County of Albemarle Rev 04/2019 PAGE 2 17 CONSTRUCTION GENERAL PERMIT(VAR10) REGISTRATION STATEMENT 2019 F. Is this construction activity part of a common plan of development or sale? YES ❑ NO G. 6th Order Hydrologic Unit Code (HUC) and Receiving Water Name(s). Attach a separate list if needed. HUC RECEIVING WATERBODY(S) JR14 Rivanna River- Meadow Creek Section V. Other Information. A. A stormwater pollution prevention plan (SWPPP) must be prepared in accordance with the requirements of the General VPDES Permit for Discharges of Stormwater from Construction Activities prior to submitting the Registration Statement. By signing the Registration Statement,the operator is certifying that the SWPPP has been prepared. B. Has an Erosion and Sediment Control Plan been submitted to the VESCP Authority for review? YES ❑ NO Erosion and Sediment Control Plan Approval Date (for estimated area to be disturbed).: C. Has land disturbance has commenced? YES ❑ NO D. If this project is using approved Annual Standards and Specifications(AS&S), attach the completed AS&S Entity Form. AS&S Entity Name (if different from the Operator identified in Section II.A.): SEE THE FOLLOWING PAGE FOR SIGNATURE AND CERTIFICATION REQUIREMENTS AND INFORMATION Rev 04/2019 PAGE 3 17 CONSTRUCTION GENERAL PERMIT(VAR10) REGISTRATION STATEMENT 2019 Section VI. Certification. A person representing the operator as identified in Section I.A. and meeting the requirements of 9VAC25-880-70. Part Ill. K must physically sign this certification. A typed signature is not acceptable. Please note that operator is defined in 9VAC25-870-10 as follows: "Operator"means the owner or operator of any facility or activity subject to the Act and this chapter.In the context of storm water associated with a large or small construction activity,operator means any person associated with a construction project that meets either of the following two criteria:(i)the person has direct operational control over construction plans and specifications,including the ability to make modifications to those plans and specifications or(ii)the person has day-to-day operational control of those activities at a project that are necessary to ensure compliance with a storm water pollution prevention plan for the site or other state permit or VSMP authority permit conditions(i.e., they are authorized to direct workers at a site to carry out activities required by the storm water pollution prevention plan or comply with other permit conditions).In the context of storm water discharges from Municipal Separate Storm Sewer Systems(MS4s),operator means the operator of the regulated MS4 system. 9VAC25-880-70. Part III. K.Signatory Requirements.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. Certification: "I certify under penalty of law that I have read and understand this Registration Statement 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." Printed Name: gouvIda 3 . Morei$o!) Signature(signed in ink): Date: eia l I I I Section VII. Submittal Instructions. Submit this form to the Virginia Stormwater Management Program (VSMP) Authority. If the locality is the VSMP Authority, please send your Registration Statement submittal directly to the locality; do NOT send this form to DEQ. A list of local VSMP Authorities is available here: VSMP Authorities. If DEQ is the VSMP Authority, please send to: If the locality is the VSMP Authority, please send to: Department of Environmental Quality The Local VSMP Authority(insert address below) Office of Stormwater Management Suite 1400 PO Box 1105 Richmond VA 23218 constructiongp@deq.virginia.gov Rev 04/2019 PAGE 4 17 ACSA OPERATIONS EXPANSION: PARKING LOT EXPANSION .. #TT10 - 7N 4,6 . / 6? i at 1 . . + C> it I • .1.0 . . ilaigk i r:;,. fp . " 111 lipt sr, , . F + II ••+ ;111c tfki I. a he. ierri git-- • . , .. rm., ,". • 1 , r ACSA OPERATIONS EXPANSION: .,,,,,�,,„ 4.,,, • --F ' t*- PARKING LOT EXPANSION ,:•- . ' •' —� s- alt - sou ,.., .„, +. ! , LIMITS OF DISTURBAN a �` Or dt. it; e N , - ...... , ., „,,,.... .. . _,,,..., .. ..., 4„, iir t lk Mb .•, •• ro.111LAWAMAill • Y w as 1/ 7010 04,. ai A CONSTRUCTION ENT' r► �, 11V11171111 iki liwr 7 i ` k II 10°1 IS % * 'ilk A' , .2:*--47 ' %L. '1 �So�irce4r Dig i4a �2xO ©00 e Earthstar Geog raphsOkibk � , u � � 0 a e C' nITT un 1 inch = 100 feet I 03'11(10.13V?(- 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 "Albemarle County Service Authority Operations Center Expansion Parking Lot Expansion" (Plan Sheets: G1.0, CO.2 - CO.3, C2.0, C3.1, C4.0 - C4.1, C5.0 - C5.3, C6.0 - C6.6), dated XXXX, 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 Albemarle County Service Authority seeks to expand the existing parking lot at the office. The site is located at the intersection of Spotnap Road and People Place behind the BMW of Charlottesville Dealership on Route 250. 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 0.57 acres and 0.30 acres of this will be impervious. 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, 11 x 17 copy of the latest Erosion and Sediment Control Plan. Do not reference only.) Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP)Albemarle County • - I - I I - I - • Dewberry EROSION&SEDIMENT CONTROL NARRATIVE EROSION&SEDIMENT CONTROL MAINTENANCE EROSION AND SEDIMENT MINIMUM STANDARDS PROJECT DESCRIPTION IN GENERAL,THE PROJECT AREA SHALL BE CHECKED WITHIN 24 HOURS OF EACH RAINFALL EVENT OR WEEKLY IF NO RAINFALL EVENT HAS OCCURRED,WHICH B. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, THIS PROJECT CONSISTS OF THE EXPANSION OF AN EXISTING PARKING AREA AT THE ALBEMARLE COUNTY SERVICE AUTHORITY OPERATIONS CENTER. THE SITE IS EVER IS 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. Dewberry Engineers Inc. LOCATED AT THE INTERSECTION WITH SPOTNAP ROAD AND PEOPLE PLACE BEHIND THE BMW OF CHARLOTIESVILLE DEALERSHIP ON ROUTE 250. THE PROJECT AREA MAINTAINED ACCORDING TO THE FOLLOWING SCHEDULE: a6as LANE BROOK ORVE WILL DISTURB APPROXIMATELY 0.42 ACRES AN0 D.27 ACRES OF THIS WILL BE IMPERVIOUS. 9. WHENEVER WATER SEEPS FROM A SLOPE FACE.ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED. SUTE zoo 1. SAFETY FENCE GLEN ALLEN,VA 23060 ( EXISTING SITF_CONIIiMS . SAFETY FENCE SHALL BE CHECKED REGULARLY FOR WEATHER-RELATED OR OTHER DAMAGE.ANY NECESSARY REPAIRS MUST BE MADE IMMEDIATELY.CARE SO&ANA7967(PHONE/ THE EXISTING SITE CONSISTS OF THE ALBEMARLE COUNTY SERVICE AUTHORITY OPERATIONS CENTER WITH PARKING,GARAGES,AND SOME GRASSY LANDSCAPED AREAS. SHOULD BE TAKEN TO SECURE ALL ACCESS POINTS(GATES)AT THE END OF EACH WORK DAY.ALL LOCKING DEVICES MUST BE REPAIRED OR REPLACED 10. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT SEDIMENT-LADEN WATER CANNOT ENTER 804.29W7929(FAX) E AS NECESSARY. _ THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT. •cn!i c ACCORDING TO NRCS DATA SOILS ON-SITE CONSIST OF RABUN CLAY LOAM(MAP UNIT 7ID), 15 TO 25 PERCENT SLOPES. CONTRACTOR SHALL BE RESPONSIBLE FOR 2. PAVED CONSTRUCTION ENTRANCE II. BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS OR PIPES ARE MADE OPERATIONAL,ADEQUATE OUTLET PROTECTION AND ANY +' TESTING,EROSION AND SEDIMENT CONTROL MAINTENANCE,AND STABILIZATION OF SOILS DURING CONSTRUCTION. THE ENTRANCE SHALL BE MAINTAINED IN CONDITION WHICH WILL PREVENT TRACKING OR FLOW OF MUD ONTO PUBLIC RIGHT-OF-WAY.THIS MAY REQUIRE REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN BOTH THE CONVEYANCE CHANNEL AND RECEIVING CHANNEL. c PERIODIC WASHING OF EXISTING PAVEMENT AS CONDITIONS DEMAND AND REPAIR AND/OR CLEANOUT OF ANY STRUCTURES USED TO TRAP SEDIMENT.ALL (1) ADJACENT PROPERTY - MATERIALS SPILLED,DROPPED,WASHED OR TRACKED FROM VEHICLES ONTO ROADWAYS OR INTO STORM DRAINS MUST BE REMOVED IMMEDIATELY.THE CC E • THE EXISTING SITE IS BORDERED BY BMW OF CHARLOTTESVILLE TO THE NORTH,FLOW VOLKSWAGEN OF CHARLOTTESVILLE TO THE EAST.RESIDENTIAL PROPERTY TO THE USE OF WATER TRUCKS TO REMOVE MATERIALS DROPPED,WASHER OR TRACKED ONTO ROADWAYS WILL NOT BE PERMITTED UNDER ANY CIRCUMSTANCES. 12. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED,PRECAUTIONS SHALL BE TAKEN TO MINIMIZE ENCROACHMENT.CONTROL SEDIMENT TRANSPORT AND O Z SOUTH,AND PEOPLES PLACE TO THE WEST. STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE DURING CONSTRUCTION.NON-ERODIBLE MATERIAL SHALL BE USED FOR THE O CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS.EARTHEN FILL MAY BE USED FOR THESE 3. SILT FENCE C OFFSITE ACTMTIFS A SEDIMENT DEPOSITS SHALL WE REMOVED WHEN DEPOSITS REACH APPROXIMATELY ONE-HALF THE HEIGHT OF THE BARRIER. I- w Z Q� Q NO OFF-SITE AREAS WILL'BE DISTURBED DURING THIS DEVELOPMENT. 8. FABRIC SHALL BE REPLACED IF IT HAS DECOMPOSED OR BECOME INEFFECTIVE. 13. WHEN A LIVE WATERCOURSE MUST BE CROSSES BY CONSTRUCTION VEHICLES MORE THAN TWICE IN ANY SIX-MONTH PERIOD.A TEMPORARY VEHICULAR STORMWATFR RUNOFF CONSIDERATIONS 4. SEEDING STREAM CROSSING CONSTRUCTED OF NON-ERODIBLE MATERIAL SHALL BE PROVIDED. Z O Z THIS PROJECT WILL INCREASE IMPERVIOUS AREA AND STORMWATER RUNOFF.STORMWATER CALCULATIONS CAN BE FOUND ON THE STORMWATER CALCULATIONS SHEET. THE SEEDED AREAS SHALL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS < CS NEEDED. 14. ALL APPLICABLE FEDERAL.STATE AND LOCAL REGULATIONS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET. W a (n CRITICAL AREAS 0 X Z CC THERE ARE EXISTING AREAS OF STEEP SLOPES AT THE EDGE OF THE PROPOSED PARKING AREA,WHERE THE NEW WALL WILL BE LOCATED. •5. STORM DRAIN INLET PROTECTION 15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABIUZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED. - \ W SEDIMENT DEPOSITS SHALL BE REMOVED WHEN DEPOSITS REACH APPROXIMATELY ONE-HALF THE DESIGN DEPTH OF THE TRAP. THE INTENT OF THIS EROSION AND SEDIMENT CONTROL PLAN IS TO GUIDE THE CONTRACTOR IN IMPLEMENTING ACCEPTABLE MEASURES,INFRASTRUCTURE,AND IA. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION TO OTHER APPLICABLE CRRERW: • a MAINTENANCE PROGRAMS THAT WILL MINIMIZE THE AMOUNT OF EROSION AND RESULTING SEDIMENT THAT WILL TAKE PLACE DURING THE CONSTRUCTION OF THIS 6. TEMPORARY SEDIMENT TRAP X a) W PROJECT. ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO THE MINIMUM A, SEDIMENT SHALL BE REMOVED AND THE TRAP RESTORED TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT HAS ACCUMULATED TO ONE HALF THE A. NO MORE THAN SOD LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME. W W +' -I STANDARDS AND SPECIFICATIONS OF THE VA EROSION&SEDIMENT CONTROL HANDBOOK. DESIGN VOLUME OF THE WET STORAGE.SEDIMENT REMOVAL FROM THE BASIN SHALL BE DEPOSITED IN A SUITABLE AREA AND IN SUCH A_MANNER B. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES. 0) I- LLJ (/) -I z THAT IT WILL NOT ERODE AND CAUSE SEDIMENTATION PROBLEMS. C. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE.OR BOTH.AND EROSION AND SEDIMENT CONTROI MEASURES B. FILTER STONE SHALL BE REGULARLY CHECKED TO ENSURE THAT FILTRATION PERFORMANCE IS UNSTAINED.STONE CHOKED WITH SEDIMENT SHALL DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING STREAMS OR'OFF-SITE PROPERTY. W ~ 0 5 BE REMOVED AND CLEANED OR REPLACED. U O = W J STRIICTIIRAI EROSION ANT SEDIMENT CONTROL PRACTICE C. THE STRUCTURE SHOULD BE CHECKED REGULARLY TO ENSURE THAT IT IS STRUCTURALLY SOUND AND HAS NOT BEEN DAMAGED BY EROSION OR D. MATERIAL USED FOR BACKFILLINC TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE STABILIZATION. c CONSTRUCTION EQUIPMENT.THE HEIGHT OF THE STONE OUTLET SHOULD BE CHECKED TO ENSURE THAT ITS CENTER IS AT LEAST 1 FOOT BELOW E. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESE REGULATIONS. Z Z Z C W SAFETY FENCE(VESCH STD.&SPEC.3.01): THE TOP OF THE EMBANKMENT. - F. APPLICABLE SAFETY REGULATIONS SHALL BE COMPLIED WITH. A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE.SAFETY FENCE PROHIBITS THE UNDESIRABLE USE OF AN tu EROSION CONTROL MEASURE BY THE PUBLIC.FOR USE IN AREAS POTENTIALLY UNSAFE FOR THE PUBLIC. 7. DIVERSION DIKE 0 17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED DR PUBLIC ROADS,PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF - T . < THE MEASURE SHALL BE INSPECTED AFTER EVERY STORM AND REPAIRS RADE TO THE DIKE,FLOW CHANNEL OUTLET OR SEDIMENT TRAPPING FACILE/AS SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED SURFACE.WHERE SEDIMENT IS TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE,THE ROAD U O Y PAVED CONSTRUCTION ENTRANCE(ALBEMARLE COUNTY DESIGN STANDARD): NECESSARY.ONCE EVERY TWO WEEKS,WHETHER A STORM EVENT HAS OCCURRED OR NOT,THE DIVERSION DIKE SHALL BE INSPECTED AND REPAIRS SURFACE SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING D PAVED PAD,PER ALBEMARLE COUNTY STANDARD DETAIL LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS.CONSTRUCTION ENTRANCES REDUCE MADE IF NEEDED.DAMAGES'CAUSED BY CONSTRUCTION TRAFFIC OR OTHER ACTIVITY MUST BE REPAIRED BEFORE THE END OF EACH WORKING DAY. AND.TRANSPORTED TO A SEDIMENT CONTROL DISPOSAL AREA STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. J I- IY Q < THE AMOUNT OF MUD TRANSPORT ONTO PAVED PUBLIC ROADS BY VEHICLES OR RUNOFF.CONSTRUCTION ENTRANCES SHALL BE LIMITED TO THOSE SHOWN THIS PROVISION SHALL APPLY TO INDIVIDUAL DEVELOPMENT LOTS AS WELL AS TO LARGER LAND-DISTURBING ACTIVITIES. ON THE PLANS OR OTHERWISE APPROVED BY THE SOIL EROSION OFFICER.SUPPLEMENTAL DRAWINGS SHALL BE PROVIDED BY THE CONTRACTOR FOR 8. CULVERT INLET PROTECTION APPROVAL IF ADDITIONAL ENTRANCES ARE REQUIRED. THE STRUCTURE SHALL BE INSPECTED AFTER EACH RAIN AND REPAIRS MADE AS NEEDED AGGREGATE SHALL BE REPLACED OR CLEANED WHEN CC CC CL co U • INSPECTION REVEALS THAT CLOGGED VOIDS ARE CAUSING PONDING PROBLEMS WHICH INTERFERE WITH ON-SRE CONSTRUCTION.SEDIMENT SHALL BE ID. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE < LLI T SILT FENCE(VESCH STD.&SPEC.3.05): REMOVED AND THE IMPOUNDMENT RESTORED TO ITS ORIGINAL DIMENSIONS WHEN SEDIMENT HAS ACCUMULATED TO ONE-HALF THE DESIGN DEPTH. TEMPORARY MEASURES ARE NO LONGER NEEDED,UNLESS OTHERWISE AUTHORIZED BY THE REGULATORY AUTHORITY.TRAPPED SEDIMENT AND THE cc Q Q A TEMPORARY SEDIMENT BARRIER CONSISTING OF A FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPORTING POSTS AND ENTRENCHED. SILT REMOVED SEDIMENT SHALL BE DEPOSITED IN A SUITABLE AREA AND IN SUCH A MANNER THAT I7 WILL NOT ERODE AND CAUSE SEDIMENTATION PROBLEMS. DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION G N FENCE IS INSTALLED TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION IN ORDER TO PREVENT TEMPORARY STRUCTURES SHALL BE REMOVED WHEN THEY HAVE SERVED THEIR USEFUL PURPOSE,BUT NOT BEFORE THE UPSLOPE AREA HAS BEEN AND SEDIMENTATION. W 0CL SEDIMENT FROM LEAVING THE SITE AND TO DECREASE THE VELOCITY OF SHEET FLOWS AND LOW-TO-MODERATE CHANNEL FLOWS. PERMANENTLY STABILIZED. • m 9. DUST CONTROL 19. PROPERTES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE PROTECTED FROM SEDIMENT DEPOSITION,EROSION AND DAMAGE DUE TO -I a- STORM DRAIN INLET PROTECTION(VESCH STD.&SPEC.3.07): INCREASES IN VOLUME,VELOCITY AND PEAK FLOW RATE OF STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM OF 24-HOUR DURATION IN A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET. STORM DRAIN INLET PROTECRON IN PLANNING AND MAINTENANCE FOR DUST CONTROL,LIMITING THE AMOUNT OF SOIL DISTURBANCE AT ANY ONE TIME SHOULD BE A KEY OBJECTIVE. ACCORDANCE WITH THE STANDARDS AND CRITERIA FOUND IN VESC REGULATION 94VAC25-840-40 MS-19 PARTS A-N FOUND AT VlEBPAGE PREVENTS SEDIMENT FROM ENTERING STORM DRAINAGE SYSTEMS PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA.FOR USE WHERE STORM TEMPORARY STABILIZATION MEASURES SHALL BE CHECKED REGULARLY AND RE-APPLIED AS NECESSARY TO REDUCE DUST EMISSIONS. HnP//CIS MRGINIA GOV/CGI-BIN/LEGP604.EXEMOCIRREGi9VAC25-840-40 _ DRAIN INLETS ARE TO BE MADE OPERATIONAL BEFORE PERMANENT STABILZATION OF THE CORRESPONDING DISTURBED DRAINAGE AREA' DIFFERENT TYPES SEAL sE04aaygs OF STRUCTURES ARE APPLICABLE TO DIFFERENT CONDITIONS THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING AN EMPLOYEE WHO WILL BE RESPONSIBLE OF THE EROSION AND SEDIMENT CONTROL PLAN AND ¢^vvti.ALTIJ OF La" - REQUIREMENTS FOR THE PROJECT THAT IS CERTIFIED BY THE VIRGINIA DEPARTMENT OF CONSERVATION OR THE VIRGINIA DEPARTMENT OF ENVIRONMENTAL - FO I�'�6,• CULVERT INLET PROTECTOR(VESCH STD.&SPEC.3.05): OUAUTY AND RECREATION AS A RESPONSIBLE LAND DISTURBER(RLD).THE NAME OF THE CONTRACTOR'S RLD AND COPY OF HIS CURRENT CERTIFICATION EROSION AND SEDIMENT CONTROL SEQUENCE-PARKING /rn/ 4�r A SEDIMENT FILTER LOCATED AT THE INLET TO STORM SEWER CULVERTS.CULVERT INLET PROTECTION PREVENT SEDIMENT FROM ENTERING,ACCUMULATING SHALL BE PROVIDED TO THE OWNER,ENGINEER AND.EROSION&SEDIMENT CONTROL PLAN APPROVING AUTHORRY PRIOR TO ISSUANCE TO THE NOTICE TO _,•/ Lb% IN AND BEING TRANSFERRED BY A CULVERT AND ASSOCIATED DRAINAGE SYSTEM PRIOR TO PERMANENT STABILIZATION OF A DISTURBED PROJECT AREA PROCEED FOR THE PROJECT. 1. INSTALL THE CONSTRUCTION ENTRANCE,TREE PROTECTION AROUND THE EXISTING TREES NEAR THE PARKING LOT,AND THE SAFETY FENCE. u d VINWNI i III THIS PROTECTION ALSO PROVIDES EROSION CONTROL AT CULVERT INLETS DURING THE PHASE OF A PROJECT WHERE ELEVATION AND DRAINAGE PATTERNS .KEVINAv, NY Pe'�' Art.No op:m3 CHANGE,CAUSING ORIGINAL CONTROL MEASURES TO BE INEFFECTIVE OR IN NEED OF REMOVAL Z, INSTALL INLET PROTECTION ON THE EXISTING INLETS. a: • Qq"ao I/46/11 P';1: TEMPORARY DIVERSION DIKE(VESCH STD &SPEC.3.09): • GENERAL EROSION AND SEDIMENT NOTES 3. INSTALL THE SILT FENCE AND REMAINING TREE PROTECTION. "p4'•^,p .G�Np. A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA.A TEMPORARY DIVERSION DIKE DIVERTS at4`TJ�NA7,g^M< • STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPROTECTED DISTURBED AREAS AND SLOPE TO A STABILIZED OUTLET.THIS STRUCTURE ES-1: UNLESS OTHERWISE INDICATED,ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND ,,10'Aa, T' ALSO DIVERTS SEDIMENT-LADEN RUNOFF FROM A DISTURBED AREA TO A-SEDIMENT TRAPPING FACILITY SUCH AS A SEDIMENT TRAP OR SEDIMENT BASIN, MAINTAINED ACCORDING 10 MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND THE 4. CLEAR AND GRUB THE EXISTING TREES.TEMPORARILY SEED ANY DENUDED AREAS THAT WILL REMAIN UNDISTURBED FOR MORE THAN 7 VIRGINIA EROSION AND SEDIMENT CONTROL REGULATIONS(9VAC25-840) DAYS. KEY PLAN TEMPORARY SEDIMENT TRAP(VESCH STD.&SPEC.3.13): ES-2 THE PLAN-APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE-CONSTRUCTION CONFERENCE,ONE WEEK PRIOR TO THE f C A TEMPORARY PONDRUNG AREA FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A STONE OUTLET. TEMPORARY SEDIMENT TRAPS DETAIN COMMENCEMENT OF LAND DISTURBING ACTIVITY,AND ONE WEEK PRIOR TO THE FINAL INSPECTION.THE NAME OF THE RESPONSIBLE LAND DISTURBER 5. CONSTRUCT THE SEGMENTAL RETAINING WALL,DETENTION AND STORM SEWER SYSTEM,AND ROUGH GRADE THE SITE.INSTALL THE INLET SEDIMENT-LADEN RUNOFF FROM SMALL DISTURBED AREAS LONG ENOUGH TO ALLOW THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. MUST BE PROVIDED TO THE PLAN-APPROVING AUTHORITY PRIOR TO ACTUAL ENGAGEMENT IN THE LAND-DISTURBING ACTIVITY SHOWN ON THE PROTECTION. APPROVED PLAN.IF THE NAME IS NOT PROVIDED PRIOR TO ENGAGING IN THE LAND-DISTURBING ACTIVITY,THE PLAN'S APPROVAL WILL BE REVOKED. 6. DEMOLISH THE EXISTING CURB,ASPHALT PAVEMENT,AND OTHER ITEMS SHOWN TO BE REMOVED,WHILE STILL DIVERTING THE RUNOFF TO TEMPORARY SEEDING(VESCH STD.&SPEC.3.31): ES-3: ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. STORM STRUCTURE/25. THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS . TEMPORARY SEEDING REDUCES EROSION AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FORA ES-4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. 7, INSTALL THE CURB AND GUTTER AND COMPACTED STONE BASE FOR THE PARKING LOT ASPHALT-REMOVE THE CONSTRUCTION ENTRANCE - PERIOD OF MORE THAN 14 DAYS.TEMPORARY SEEDING REDUCES DAMAGE FROM SEDIMENT AND RUNOFF TO DOWNSTREAM OR OFF-SITE AREAS,AND TO AS NECESSARY TO COMPLETE CONSTRUCTION OF THE STONE BASE. PROVIDE PROTECTION TO BARE SOILS EXPOSED DURING CONSTRUCTION UNTIL PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES CAN BE ES-5, PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS(INCLUDING,BUT NOT LIMITED TO,OFF-SITE ESTABLISHED.FOR USE WHERE EXPOSED SOIL SURFACES ARE NOT TO BE FINE-GRADED FOR PERIODS OF LONGER THAN 14 DAYS.SUCH AREAS INCLUDED BORROW OR WASTE AREAS),THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND DENUDED AREAS,SOIL STOCKPILES,DIKES,DAMS,SIDES OF SEDIMENT BASINS,TEMPORARY ROADBANKS,ETC.(SEE MS/1 AND MS/2).A PERMANENT APPROVAL BY THE PLAN-APPROVING AUTHORITY. 8 PAVE THE PARKING LOT,PERMANENTLY SEED ANY UNPAVED AREA,INSTALL THE LANDSCAPING AND FLUSH THE DETENTION SYSTEM OF ANY • VEGETATIVE COVER SHALL BE APPLIED TO AREAS THAT WILL BE LEFT DORMANT FOR A PERIOD OF MORE THAN ONE(1)YEAR. SOIL. SCALE ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION ANO . PERMANENT SEEDING(VESCH STD.&SPEC.3.32): SEDIMENTATION AS DETERMINED BY THE PLAN-APPROVING AUTHORITY. 9. UPON SUCCESSFUL GERMINATION OF THE PERMANENT SEED TO MINIMUM STANDARDS,AND UPON APPROVAL BY THE LOCAL AUTHORITY, THE ESTABLISHMENT OF A PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLANTING SEED. PERMANENT SEEDING REDUCES EROSION AND REMOVE THE REMAINING E&S MEASURES. DECREASES SEDIMENT YIELD FROM DISTURBED AREAS. PERMANENT SEEDING STABIUZES DISTURBED AREAS IN A MANNER THAT IS ECONOMICAL,ADAPTABLE ES-7: ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING TO SITE CONDITIONS,AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT MATERIAL.PERMANENT SEEDING ALSO IMPROVES WILDLIFE HABITAT AND SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED,AFTER WHICH,UPON APPROVAL OF THE PLAN-APPROVING AUTHORITY,THE CONTROLS - - ENHANCES NATURAL BEAUTY.FOR USE IN DISTURBED AREAS WHERE PERMANENT,LONG-LIVED VEGETATIVE COVER IS NEEDED TO STABILIZE THE SOIL.FOR SHALL BE REMOVED.TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE REMOVAL OF TEMPORARY MEASURES SHALL BE ' . - USE WHERE ROUGH-GRADED AREAS WHICH WILL NOT BE BROUGHT 10 FINAL GRADE FOR A YEAR OR MORE. PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. - ES-8: DURING DEWATERING OPERATIONS.WATER SHALL BE PUMPED INTO AN APPROVED FILTERING DEVICE. TREE PRESERVATION&PROTECTION(VESCH STD.&SPEC.3.38) _ I PROVIDE SUPER SILT FENCE OR WELDED WIRE FENCE FOR PROTECTION OF DESIRABLE TREES FROM MECHANICAL AND OTHER INJURY DURING LAND ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES AT LEAST AFTER EACH RUNOFF-PRODUCING RAINFALL EVENT OR WEEKLY.ANY _ DISTURBING AND CONSTRUCTION ACTIVITY. TREE PRESERVATION AND PROTECTION IS USED TO ENSURE THE SURVIVAL OF THE DESIRABLE TREES WHERE NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL,WATERSHED PROTECTION,LANDSCAPE BEAUTIFICATION,DUST,AND POLLUTION CONTROL, ' NOISE REDUCTION,SHADE,AND OTHER ENVIRONMENTAL BENEFITS WHILE THE LAND IS BEING CONVERTED FROM FOREST TO URBAN-TYPE USES. FOR USE ES-10: THE CONTRACTOR IS RESPONSIBLE FOR THE DAILY REMOVAL OF SEDIMENT THAT HAS BEEN TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE IN TREE-INHABITED AREAS SUBJECT TO LAND DISTURBING ACTIVITIES. ES-11: SEEDING OPERATIONS SHALL BE INITIATED WITHIN 7 DAYS AFTER REACHING FINAL GRADE OR UPON SUSPENSION OF GRADING OPERATIONS FOR - ' ANTICIPATED DURATION OF GREATER THAN 14 DAYS OR UPON COMPLETION OF GRADING OPERATIONS FOR A SPECIFIC AREA. • - _ DUST CONTROL(VESCH STD.&SPEC.3.39) ES-12: THE CONTRACTOR SHALL BE RESPONSIBLE FOR PREVENTING SURFACE AND AIR MOVEMENT OF OUST FROM EXPOSED SOILS WHICH MAY PRESENT APPLICATION OF TEMPORARY SEEDING(VESCH&SPEC.3.31),MULCHING(VESCH STD.&SPEC.3.35),IRRIGATION,SPRAY-ON ADHESIVES OR BARRIERS TO HEALTH HAZARDS,TRAFFIC SAFETY PROBLEMS,OR HARM ANIMAL OR PLANT LIFE. -- PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY _ B PRESENT HEALTH HAZARDS,TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE DURING•LAND DISTURBING,DEMOLITION AND CONSTRUCTION ES-13: A VIRGINIA STORMWATER MANAGEMENT PROGRAM PERMIT(VSMPP)FOR THE DISCHARGE OF STORMWATER FROM CONSTRUCTION ACTIVITIES IS REQUIRED ACTNRIES. FOR PROJECTS DISTURBING 1 ACRE OR GREATER.VISIT THE VIRGINIA STORMWATER MANAGEMENT PROGRAM PERMITTING WEB PAGE AT ' HTTP://WWW DEQ.STATE.VAUS/PROGRAMS/WATER/STORMWATERMANAGEMENT/VSMPPERMITS/CONSTRUCTIONGENERALPERMIT.ASPX FOR MORE INFORMATION. .)Iyi.Y - 'LX ROOT PRUNING(ANSI A300-2000 PRUNING STANDARDS.) -- / • SHALL BE COMPLETED IN A SINGLE OPERATION WHERE INDICATED ON THIS PLAN.TRENCHES SHALL BE A MINIMUM 10 INCHES DEEP ZONE X iv?. '�, ,:,?.z,.-'., ".tr PSCALE 1•w 5O0' 2 Oi 28 19!y �.T,` / / HCG COUNTY COMMENTS AND BACK FILLED IMMEDIATELY. IF TREE PROTECTION/SILT FENCE IS TO BE INSTALLED AT THE LIMITS,THE ROOT PRUNING TRENCH .`"=•y. 'l '.3'-'�• '- air 1 ,tix,F+-4,,/ '„r ;-. FEET 1 11/12/18 DAB COUNTY COMMENTS MAY BE USED FOR TREE PROTECTION/SILT FENCE INSTALLATION.THE ROOT PRUNING SHALL BE CONDUCTED WITH THE SUPERVISION EROSION AND SEDIMENT MINIMUM STANDARDSf ,�, .,.,METE. No. DATE BY Description OF A CERTIFIED ARBORIST,AND UFM SHALL BE INFORMED WHEN ALL ROOT PRUNING AND TREE PROTECTION FENCE INSTALLATION IS 2 /A:.,.• `_j ZONE% COMPLETE. 1. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY f :%;'V`vi/f� �// )"'. "t �°'s 1�,r/, j `�- REVISIONS PORTION OF THE SITE.TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL µ!'`/^r rN'' 'oI TEMPORARY AND PERMANENT STABILIZATION 1 ';_: L / ZONE`y;,, y _ ` GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN 14 DAYS.PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT l III J' '• „ TEMPORARY SEEDING SHALL BE APPLIED WITHIN SEVEN DAYS TOO LIMITED AREAS THAT MAY NOT BE R FINAL GRADE,BUT WILL REMAIN DORMANT FOR LONGER THAN /Ba[w - r>! •'AE tF-, S PANEL 029N MAIM 14 DAYS AND LESS THAN ONE YEAR. THIS INCLUDES.BUT IS NOT LIMITED TO,STOCKPILES AND BORROW AREAS. DORMANT FOR MORE THAN ONE YEAR.SPECIFIC FERTILIZER,NUTRIENT.&SEED APPLICATION MUST MEET EROSION AND SEDIMENT CONTROL(ESC) _ ;?'� .AF:y.:4-�;;(,;SA a- q0w DRAWN BY TECHNICAL BULLETIN NO.4 NUTRIENT MANAGEMENT FOR DEVELOPMENT PROJECTS. DOWNLOAD AT -At ,{'/ t,a,.,:V;,.-'• `- FIRM PERMANENT SEEDING SHALL BE APPLIED AND A PERENNIAL VEGETATIVE COVERING SHALL BE ESTABLISHED ON DISTURBED AREAS WITHIN SEVEN DAYS OF BEING hllp://www.eeq.Virginiagov/Programs/Woler/StormwaterManagemenl/Publications,aspxl. MULCHING REQUIREMENTS MUST MEET VESC HANDBOOK \/w Tv=i`=j"- -•P'VI.•',�`..r''''. «i^'; 'V a TON APPROVED BY DRM MULCHING TABLE 3.35A. 'Ei 3„ , BROUGHT TO FINAL GRADE ON AREAS N07 OTHERWISE PROTECTED. SELECTION OF THE SEED MIXTURE SHALL DEPEND ON THE TIME OF YEAR R IS TO BE APPLIED. _- ';< +rw• FLOOD INSURANCE RATE MAP DRM �. '•`".'0/ "'JJ"r.,, - CHECKED BY \� ,'' �. "F'"."..j'. /�.%�:,^.'' ALBEAARLE 000N34.YIRGCRA THE PROJECT IS MORE THAN 10,000 SF AND WILL REQUIRE EROSION AND SEDIMENT REVIEW APPROVAL - 'ft';'- -s;:°'"" ^% "';i•ry I`a AND LvcGR➢oBArEn JANUARY 28,2019 2. DURING CONSTRUCTION OF THE PROJECT,SOIL STOCKPILES AND BORROW AREAS SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING ..n,;?, .'' _ ..AND LAIC ORA��.AREAS DATE MEASURES• .THE APPLICANT IS RESPONSIBLE FOR THE TEMPORARY PROTECTION AND PERMANENT STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS rx ' t;* � 4:"I'`:•'• i'2 ox L THE BARI.onr`Tr.e CM WELL AS BORROW AREAS AND SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE.ANY BORROW,FILL,OR WASTE SUCH AS DEMOLITION MATERIAL' 'F' ` \ MUST BE PROVIDED FROM OR HAULED TO A PERMITTED,APPROVED,SUPPLY OR WASTE AREA.ALL OFFSITE ACTIVITY IS NOT PART OF THIS PERMIT/PLAN Jr. w' - I pAED.in or 57S TITLE • SET AND IS ADDRESSED UNDER SEPARATE COVER• .SOIL STOCKPILES ARE NOT ANTICIPATED ONSITE. _� f1:V,*„'s,: 111 "'• �'• •�'--, EROSION & ,.�s.A,. I ZONE Z3. A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMANENTLY STABILIZED.PERMANENT VEGETATION SHALL AP- � � . !Los Lvto,x. NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT IS UNIFORM,MATURE ENOUGH TO SURVIVE AND WILL INHIBIT EROSION. '` SITE '� a SEDIMENT • ait_. °�a a R CONTROL NOTES I A 4. SEDIMENT BASINS AND TRAPS,PERIMETER DIKES,SEDIMENT BARRIERS AND OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS •��IR -:-2 I A FIRST STEP IN ANY LAND-DISTURBING ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. F. 5. STABILIZATION MEASURES SHALL BE APPUED TO EARTHEN STRUCTURES SUCH AS DAMS,DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. ,C ZONE "`uY,:' `.',C 6. SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DESIGNED AND CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY THE TRAP4 rx % A( L --_.. NAp NUMBER PROJECT NO. 50075660 OR BASIN. l\ , 51603CO2870 A. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA AND THE TRAP SHALL ONLY ' �\/ TORT '�t,` EFFECTIVE GRIT SHEET NO. CONTROL DRAINAGE AREAS LESS THAN THREE ACRES. rssw WAD 1TEEUASY 4,2A08 • B. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED OF FLOW FROM DRAINAGE AREAS GREATER THAN OR EOUPL TO THREE ACRES / . i2 n00,.lcsn.,,.N+-,.,ter A.m.7 ^O. w SHALL BE CONTROLLED BY A SEDIMENT BASIN.THE MINIMUM STORAGE CAPACITY OF A SEDIMENT BASIN SHALL BE 134 CUBIC YARDS PER ACRE OF JOINS PANEL TWO \/V- /G] DRAINAGE AREA THE()WALL SYSTEM SHALL,AT A MINIMUM,MAINTAIN THE STRUCTURAL INTEGRITY OF THE BASIN DURING A 25-YEAR STORM OF > " 24-HOUR DURATION.RUNOFF COEFFICIENTS USED IN RUNOFF CALCULATIONS SHALL CORRESPOND TO A BARE EARTH CONDITION OR THOSE CONDITIONS EXPECTED TO EXIST WHILE THE SEDIMENT BASIN IS UTILIZED. I - I • I - 1 - EROSION&SEDIMENT CONTROL LEGEND �, \� I I I (( °I °I _ k 1 1.� \ D PrIFt'EL 07E0I 7580 I I / / Dewberry 1 \` \ I I \ R/CKY CEE R / • DONNA(: R I / Q SYMBOL, NAME OF E&S MEASURE SPEC* QUANTITY I \ \ `g \ �.. I \� \ c.}y"Nl1C'ffGHC/AL ( I \ • I I `LAND USEC I \ 1 , ---- --' I::TE::: • 3.01 ::: LF \ • I 707AL A 4 Dewberry Engineers Inc. \ I 1 11 \ \ 1 AVOS LAKE BROOK DRVE \ SLsTE200 \ 1 1 \ \ , 1 \ ,/ GLEN ALLEN,VA 23060 SF X X 3,05 LF \ 804290.7957 LPHGNE) \\ I I I . ROC IPQ Ir FENCE eos zsn7sza LFA9 IP INLET PROTECTION 3.07 3 EAC I f // / I 1 J` --- , ,1 F.r(^ ) ,/ C - .},i / I / \ \` / 20'SAM S5155 51.51 f6VT 1 I --- ' ter. / _/ - S' a) CD ® TEMPORARY SEEDING 3.31 600 SY INLET 1 / /'\� 1 J- , , \STORM MN /' /� ' E O = 71.98' ! r '' \ '\ I J \ TOP=3B7.16 / ,/ ' / ,/ ( 7-1 O c J / 1 \ - \ 1NV 1N=373.3B(✓RO,f7-7 / :---11 IRON!R' FOUND/ s.9s'(our _ �. 1 K @10FlL7ER i r'lNV lN=733B 0%1-5 / YG ) z a yi .\ \_ 3 ( J / N! < ZO Z PS PERMANENT SEEDING 3.32 600 SY yA \ \ ° '—_f T ,/ / V` (`/ /NV OUT=36&6r7(24"RCPJ/ / J E',r1�,1 L- _� 7, / Q Q\ r _ _=\\_ K ''— —x- -}U . xf. + . _ rY� i r �n�r / i'/ / 7. ' , ., /� W fn C �_ — TP TP TREE PROTECTION 3.38 60 LF l /'i 1 /' \'\�` '\ WALL/i _ y��/°-��,-?Wi s_ / �r 1 /' �'7.//' ,/ -- ,_._. _�j_ �f — > W Q £NT-� \( 1 1 r I 11 PW 0h /1� Y(l+/J^�.i- ram -�'-- 7 i��7'199.46'--- /'// SF '/ ' /-- _ __.•.� -'r"�.._�� �._ 12-XU-I . �_ W .LIMITS OF DISTURBANCE t __ m HT,J • { -�_J� __--_., _ ---__ /_ / R / �/ / ,' ' J 4-� P /,'�/\ \'/ 1 W O 5 CO O SPECIFICATION NUMBER / -_- f / \ — �6 /\�� / 'CJ'�`J-- Iv / / �2 "L cS �� V .J :C W -W' I -__----_- -- __ ALBEMARLE COUNTY1 EA. / I/ 1 //'\ -- -.-_I - __ .-� "� - ._- Li _-- �' ' / �'�� /' / I la /' \/ \\\ N" `\ \ O Z Z - O L' PAVED CONSTRUCTION ENTRANCE fr.--,A,,, 7\/� ___— _ _ ._-SS~ / , / 5 / T ¢ I 1 �" /' SS _ ��✓-1-U,'.�I�LJ"i/- i / i ' /' �,'� s7RM I \` -\ _L U O.Y co —I D ' r C1 / �N A__.-'y—--// -___- - -g:1 I / /' / 5 ,tk 5451N 7 --� ;- T J Q Q Q I / -� •�_- -� �- /' /__i' -<_'/--- I TOP-3R503 \f O•. O 2 ++ I / 7P�74�?- / `2..•J''' --_ ,�{ �L;- /NV/V=J78.5_(FROM-4J ACCESS GATE * co U C&C r / /�V OUP=369TB(B"' J'',r _-._--------- _ -- / / /'B, a� • iJ /,/ \- lNV/rY=374.97(FR0,4/-9J (COCATION ONTRACTOR f Q W r / / J ' _ _ i /.•// /NV 0!/=37•f B0 2•f-RCP) I//`\ O 1 =,-�- ,/ �: ��`\ I J TO PROVIDE / I // // 1_ _ -7. -"'.1 /'�-- / / //, TREE �,d ,\\\`- \ I LOCK) I W O 1 - L_ • / I/ SP / / j -- / / - / r .\\ -\ Lam&.\ G0n2 jRE/ CO/ / / /j �\ \I .` \ Q 7AENT 1 .I / / I/ / '/ r/ / I // / sP 2 FL r 1 • �~ \ SEAL / / / g0 i I / / / \ i \ ` / c� waaay� • — 606 / t 1 j / 1 ,,� ,3 // / / ///!!!////// \`\ \\, I \ ` / iff,4?... _°' nLTl7 °4.,, .. . / 1 I / // i / / I / 4 TREE / / \ \ . \ .( `\\�� ENNb, NY PEM:! / /// \\ \ • \ \ !!\ \ r 1/2�319 I f( TREE' I / 6t nrr / /.� `\ \.\ / \ oaf I. .24 f:• ", uv a I' ////, i \ �\ l aof..ace I I o I r i<' I /' TP /// //// \ \\ \, \ 11 \, \` '`',ti\ , / KEY PLAN C I 1 �/1 d I // // 14'r''• //iif/� \\ \\ / \ `\. \` �/` /\/ . // / // -/- \ . e, . (-----' Y i I II / G4ZER0 AND _ j \ i \ , 00:' \ \ \ l \ CUNCR PAD ` �/. Pe \ ` /,R 12" \ f1 / I I I / (APPRO.Y LOCAL/OP/J ` ``\ e �.• �' _ _ / TREE SCALE f67 III I �1 I/ /' / i', ~� l \\ \ \\<N ` . AI 1 I I 'I I' '////` \\ \\I Y �\\ \ 1, ''\ `r/ K \�\\ ° I D' 2G' 1 it o I II _ I/ /�// \� \\ 1 / \ \ \ / — / \\ II \\\ \; GRAPHIC SCALE +1 \ os"'\\ \ / \` • \ l \ \ rA�[ r to I I / ,(\\ �\ \ \�. T76_�l ........' - :.! / TP // \\yP \\ �( `UMITSOFDISTURBANCE \\ \ \\� % \ `. C:).:;:;:TpLac:: TREE //�, \\ / AC \ . \LEE ' / , ,. `\ , Y \ /' / ` ` B � I I Pc /j \ � . I \ (� `�• / / . // \ 4//# 2 01/28/19 HCG COUNTY COMMENTS / r ?: ::.;:.;::..... / P r / 1 11/12/18 DAB COUNTY COMMENTS 1 / :..f:::::::..:::: e� OVERE/OK / I ,\ \ \ No. DATE BY Description I \ COCUAf✓✓S • / I SF )�� .....;Y�;:^�,p�.�;'. \ \ �\\ \ ` I `./ / REVISIONS MNM / .::::::: ':.A. /� I `\ DRAWN BV • DRM I \ — APPROVED BY \ ; ...7/!✓'.Q1 AA6,5"RCPJ r/ \\ / ^T CHECKED BY DRM \ II. / 1 \- \ / DATE /ANUARY 28,2019 TITLE PROTECT STORM', �` ? \ \\ 1 / _ STRUCTURE FROM .� / I ' ACCESS GATE LOCATION(CONTRACTOR \ \ y / DAMAGE R F IC�` \ I TO PROVIDE LOCK) \ 7\VEHICLE TRAFFIC i�\\�� 1 y�/ \ \ 1 .// OFf7C<'/AO!{7✓5T21TK)11 BUILDING /�� , .PHASE 1 16B SPOTiY4P ROAD '1_✓� �� \ I 1-STORY /-3B0- - - 1l ,/ \ `�\ 3R,C-STOR55G / ESC PLAN A E - • \_sAF�I / • 'E 5000" FOUND • 3�M\ I `� \ /✓ SSW ELEV=38545 /� / \ // , OVERIA1VG / PROJECT NO. 50075660 • NfV�romp 1, W/DRICK N.3.8„9.357.03 STORM MR �'` � \ \ // / �-„�a\ // f COLUM,VS / SHEET NO. TOP=3B1.66 -\ \ \ / 11,AS6,0.70.1 I // // 1NV 1N=37500 \ �—� 1NV OUT-i7785 15" \\ �. ' C 2. 1 • RCP) ( 1 •, ///// / ; E • CO .. '�/ / I1`STRM\` 'i\-\e CONC 7 ? \.r?' "t . . I I EROSION&SEDIMENT CONTROL LEGEND \\\ EU � � . 1 OGiL; F r I I I MSURESPEC• UO ANTITY 1 \ \\ -y- � r `�\'� I..11"""""" (e Tc(a \Ii / I \ _ ^„ _; 1 ---_-I Dewberry Engineers Inc. \ I \ \ 1� /' '/' 4805 LAVE BROOK DIVE / I \ I I I I \ \ ` / /' SUTE zoo OSF X X. SILT FENCE 3.05 300 LF I \ \� 1 ; \\ \\ 1 , ( r + �' ceo`i�valsFs,fin vow _ \ I I I I �' �-- \ ROD !P J FENCE i' w+ >9=e L FAX) 1P �� INLET PROTECTION 3.07 3 EAC - ) \ / I 1 �'1 \ / I i Y I / • // 20'S4N.S/3*fo E�15'(LLTJT I I �-- (' .1� /) i' E a) / `\\ \\ / DLi 1371,PC 19 I • 1 \r-1r // // 1] i 0 Z 0 TS m TEMPORARY SEEDING 3.31 600 SY INLET I \ /\\ I I -_ `'-�\ `''TGKM AfN / '. - p / J, = 0 71.96' l T -.--__-' ---, I I --."- \ 109391.16 / r7 �l i' •.J 75.98'(OU7) 11 I \\--^ B1OFILTEP / I • i 1 tl INV lN=J713E(TR -7J // ,' IRON R,,rt FOUND/ J ~ Q PS - 1 ,\ _..__. �.�� 4 MI/W=J733B(r M-5J / N:'i'T✓ Z z PERMANENT SEEDING 3.32 600 SY t �m9 ___- �' i' y9b,620.tS / .�' Q O Q \ \ x ° '' /� r} AwOU 3oEroo(z;'RCP)/ E r,ns Q i K 7 i ' 7/ , ' .l / W a. U1 C 0 O / - - \ /_/ ,y- \ v--= + • - 1 = ...3. r,�.G'�••�1� 1 '�' / ,�r'- 7'- - / — Yt - O U Z cl� s TP TP TREE PROTECTION 3.38 60 LF / /'7 I ,-' WALL 1. A• . 77,v,.71.... -- f-// i 7i / J r-1 — W Q > z VENT / 1 I I 6W' J= �j.4<_��/fir n V -- - %� �' - 9k� ' �' r — % — E I SOIL STABIUZATION MATTING336 3,130 SF I _--=_/ ./vWI_/ -Ir'�(TREATMENT 1) `� V __ / , zJ I\� _1�----�. / -,. W/ F� -_� / \` -- --- U SOIL STABILIZATION MATTING 336 181 SF / / / --"---L---- � Z� �(TREATMENT2) � C/) cc p LIMITS OF DISTURBANCE _ f� WV ir1=37457FRall-9 / Q • VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK Ced 1 CUT==3E9J E'.- °-'7 o v+_° v ' ( J (CONTRACTOR i � • --�-- �_� (� 8- a/1` / C p SPECIFICATION NUMBER - 1 I / / • a. ..� /v "�- ^^ Dq� n ` �, /j.�' \` /rVV CUT'J74dG/2a"kY'PJ TO PROVIDE G • I /' q!a v v vJ v7'c ^- / -� ��' \` TREE - ��,`�. I \ LOCK) ' �\ W O I I/ / I — vv Jv v•-vv ✓v / U ,, ^/ \`,`, �''� !� RZ \ 12" m EROSION&SEDIMENT CONTROL NOTES I �/ SF%� /7 I v ° ° °_ v. o' ESN , //` \\\\ L� c` rREE Q VENT 1 I / I / I,/' ° °° •1�.. a v / '/ , / 5°' \• �- \ / 1. EROSION CONTROL BLANKETS (EC-2) SHALL BE INSTALLED ON ALL / ° v �" v," / / / / \\ '� SLOPES 3:1 OR STEEPER. 2' �/{ •�/' p v v�'vS J ° / / \ \. ` = / SEAL 'pmD�LT1/a°ny.. + I • ao ° "°v 380 7 / // /� 1 3� m„cn pp°i"� 2. EROSION CONTROL BLANKETS (EC-3) SHALL BE INSTALLED IN DITCHES II r / i v v7'v °• J°°v °•- // // r / / „As \ \� ` ` /I \\ ,�/�oGJ/��' �lw�C�5�,,` AT TOP OF WALL. I , v v o vv,v v v / /' �✓ / %' ./ \ \ \ \ - \`/` ,KE ,� ;�' O v °IlL' _ / / / // • \�` \ \ U VP1AY•Y NV it..' 3. PROPOSED DRAINAGE STSJEM SCREENED BACK ON THIS SHEET FOR II I iI 7 v `7 v ' ✓,�° .• / / / \\ \ \\`� ' kry00]NA7 CLARITY. I ! •v • T,v a v v - / / ��., \ \ /\ \ - a. I I ' °T v^fad v v ✓v v .; // /, //•.i \\ \ \��.\\ \ / \ f3,, 1122/11 .,4•s _ � I, �6/ vl v' v.•v •v v v 4. F''',; /i7/rA• \ \�\ \� \1 \ \ L �o��Ra ::m`•L?e�v n mn Ici �tv"1v�' No n i / // \\ \ - 1 \\ `�_ 1 G /v v" ']O v v P' / // TP /'y / \ \ ` 1 \ \ KEY PLAN , le C\ vvvv(�i%1< TREE \ / \ \ / \ \ rs IHu I v v. 7 // /� \ saY/ \ \ \\% \\\ r� i?Er\\\ SCALE Ip ° . ° 1 CCIP, / / \-‹ \ I\ \ /\>\\ // \ II ,\\\ GRAPHIC SCALE • T7s !I I .h ♦Yo'I'v•pv �407 TP .///� \\\Yy P" `1 \ \ / HALL I I II V V ;}c 00 // P /I \-UERTS OF DISTURBANCE \ \ \\\,, \ I �� p TREE(C ifr, \ / I , \ \ - - • F. v ‘1 �� va v vv, / / \ / • • / 1\ 47 7� / /1) / \\ \ �� // / 2 01/28/19 HCG,COUNTY COMMENTS / 1 ,./. ' v° 7 \\ `'P/ ) \ \ V ' GVERILLLVI 1 11/12/18 DAB COUNTY COMMENTS /lam' v"v /' \ / I \ /' Y//&?CK No. DATE BY 1 Description ° ° I \ \ / CGCUAlNS REVISIONS / / \ • MNM ' i' II °V v / , r / / - DRAWN BY -3..,_- v CAT B4`IN \ J/ ,i I / SF ; TGP=.18237 \ \ �j' - APPROVED BY DRM f \ ,: /,YV/N=3r'205 / I / / ., ORM WV OUT=,Ii(�96(/5'RCPJ `� \ / /� j CHECKED BY I ' \ II \ \ // \ II\ /// - • DATE JANUARY 28,2019 - (� TITLE PROTECT STOR \ / �, e07 \ \ I \DAMAGE DUE TO ��f' GFE7CE/A016115TRWNBUILDING ADRN/A - - - VAIL � �-!j/ \ \>,> " FF EIEV-39L 15 . 0 50--CO' 11 FOUND / \ \ BSMT EZEY=3fi545 l 1 / SROM �'' / \ \ \ OVERN / PROJECT N O. 50075660 NAIL FOUND STOW MN �\ /n -\ CF COLIAVNS SHEET NO.N.3.699.35203 1OP=JBC 6E /• 0.11,1sa70.a178.00 \'h \ I // \ 'T / lNV OUT-377E5(5' I ,r '‘,N \ r" C 2.2 / ' TAG _ -.% 1.1 u , \ . ,'s' 3 7..,\' . / \i , • Dewberry' ALBEMARLE COUNTY GENERAL CONSTRUCTION NOTES FOR EROSION& 1992 T.01 1992 3.05 SEDIMENT CONTROL PLANS - __._. __ __ SAFER) PENCE u ASPHALT T GP 9 CONSTRUCTION OF A SILT FENCE Clx-msT + Dewberry Engineers Inc. I. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE-CONSTRUCTION CONFERENCE,ONE WEEK 7X 2x " (WITHOUT WIRE SUPPORT) 4805 LAKE BROOK CAVE PRIOR TO THE COMMENCEMENT OF LAND DISTURBING AMITY.AND ONE WEEK PRIOR TO THE FINAL INSPECTION. - ` .�. 200 - ,,,e,..y . I 6 'bd',,,e T - -. ; I.SILT THE STAKES. E.EXCAVATE WNG Tle use OF culEt�i LLLEN.VA 23060 ■�88��r■r8 -_• . , '. r.:\J,. ,_.,_. ..�•• .••._ �,A 8042.7957(PHONE) 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS eo429Rr929 I FAX) AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK MID VIRGINIA REGULATK)NS VR 625-02-00 ,111.11 IL \.. _ `-d'MN 2-A AGCAEGAIL bA'_: - E EROSION AND SEDIMENT CONTROL REGULATIONS. I��.I.��W _ n�.�u1 `�MO I PROFILE �yi /- 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO DR AS THE FIRST STEP IN CLEARING. j,.` . .I I ., I j - i 4. A COPY OF THE APPROVED EROSION ANO SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. .t p+,;f 1\ ��-� / W : � /*I „it ��J FFF A Tv MIN. � � _?. -i 01 ICC 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PANS(INCLUDING,BUT NOT - s LICIEM. ASPYU:T RAVED r //tfl ' � �i- O Z E LIMITED T0,OFF-SIZE BORROW OR WASTE AREAS),THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL -i ( avAy"'nCK +xa' �,r PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. (- $ -""-"--� 'I :�r' = O • . • [ } EA19T'NG ! QO B. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO ,.. �' i 2X E 7x Y PAVTMENT 1 D Z Z Q PREVENT EROSION AND SEDIMENTATION AS DETERMNED BY THE PLAN APPROVING AUTHORITY. "' -a a2'MN•• ""- 3.STAPLE FIt.TER wTBRIAL 4 eacmnst AND COMPACT Z z '`( is TO W INTSTAKES THE TRENCH THE EXCAVATED SOIL • • Q O Q �_ 7. ALL DISTURBED AREAS ME 70 DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL MIES DURING LAND DISTURBING w ACTMTIES MID DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. - . - - •EATEN()40Ly aM'J"N I '-4-POSNVE v AJNwc ( 0 x Z EZ Z - 8. DURING DEWATERING OPERATIONS,WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. I'NCIEATE AND EG9ES5 TO SEDWENT - LL1 PERSPE'' f VIEW - T�N iR taAPPiNG ONCE- //� < 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF-PRODUCING -' -� /_� - rr (C O � SHALL B EVADE ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFTECTNENESS OF THE EROSION CONTROL DEUCESplirk, /� 7.II y / W W J SHALL BE MADE IMMEDIATELY. ., I; w CI) J 2 fitiA, 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED,DESIGNATED BORROW AREA �✓ ( 1 ``r. _ � �' row Z I- 1_ O "may; ._.... -..__-.tz"Mlv.. .._.__.. _ • _ 11. ALL WASTE MATERIALS SHALL BE TAXER TO MI APPROVED WASTE AREA. EARTH FILL SHALL 8E INERT MATERIALS ONLY,FREE 0. , "g._w - - - 'I 0 L. OF ROOTS,STUMPS,WOOD,RUBBISH,MID OTHER DEBRIS. ,,�. sxxt.`.u, �` 2x ..- SHEETFLOW INSTALLATION Z 0 0 LU. - (PERSPECTIVE V E O Z 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. \. •' SECTION A-A f I . yP 0ZZ_ T O , 13. ALL INERT IMTERU S SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 DE THE CODE OF ALBEMARLE. - u:>rl . f'(,/ a _\ O P _ y E.) 14. BORROW,FILL OR WASTE ACTMTY INVOLVING INDUSTRIAL-TYPE POWER EQUIPMENT SHALL BE UNITED TO THE HOURS OF __ � ' cc � .raor •. W.._ D 7:O0NA TO 9:00 PTA �� A amwnxu waTo tap of I nub must be WaIoUr I e7IIt a oCIA Bu I I p a..-.,I ,.°'- LU �' CC 0 Q :::::' f� lRt ffTAhe stgq byxawa,:bbo;e'.cN7LALti. et LE"1tn.bee fdr uk<platr "�lr - • \_ J Q Q 0 T 15. BORROW,FILL OR WASTE MfNIIY SHALL BE CONDUCTED IN A SAFE MANNER THAT MNNTNNS LATERAL SUPPORT,IN ORDER TO ."y: 4 W c ctt taut ro0tut Wash motel UDIHB be can id away from the enhance to NI "+/gl �'_� V C-- MINIMIZE ANY HAZARD TO PERSONS,PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS,AND DAMAGE TO ANY PUBLIC pt II '(I ,,i CC IliCO U STREET BECAUSE OF SLIDES,SINKING,OR COLLAPSE. PERSPECTIVE VIEW PERSPECTIVE VIEW 41,40 41 settWt2 urn to te1110 esedmem l sedmieot.shall be pie Mad Sons POINTS A SHOULD RE HIGHER THAN POINT P PLASTIC FENCE METAL FENCE ntarA etmol than,ditcheo or water C au,e, DRAINACEWAY INSTALLATION a- D 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL MAINTAIN.REMOVE OR CONVERT TO PERM NENT STORMWATER __ ______ ___ (FRONT ELEVATION) in O CV MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE .._, - _ PAVED WASH RACK -- - - - m SALE OF ANY LOT,UNIT,BUILDING OR OTHER PORTION OF THE PROPERTY, Seam Adapted from Corned Pfas c and Plate 3.01.1 Soorre: Adapted from IOOIaUaROR of Straw and FabeiciiLler VDOT JippJ and Bridge Stamford. - Barrier,for Sediment;'ontrul.Sherwood and Wyanl Plate t.IlT-_ J 0 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS/ACRE,AND IN THE Q U) MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE.OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE,OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH (PAVED CONSTRUCTION ENTRANCE) 03A.. IS 70 BE APPLIED AT 80 LBS/IODSF. ALTERNATIVES ARE SUBJECT TO APPRENAL BY THE COUNTY EROSION CONTROL III.i Ill-35 SEAL +Wa ALTtl 0a� INSPECTOR. - O-A• nF A''18. PERMANENT STABILIZATION SHALL BE UME AND FERTILIZER,PERMANENT SEEDING,AND MULCH. AGRICULTURAL GRADE US A LIMESTONE SHALL BE APPUED AT 90 LBS/1000SF,INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL FERTILIZER SHALL O BE APPUED AT 1000 LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MB. PERMANENT SEEDING SHALL BE APPUED AT VNAN: 18D LBS/ACRES MD CONSIST OF 95X KENTUCKY 31 OR TALL FESCUE AND 0-5x PERENNIAL RYEGRASS OR KENTUCKY 1992 3.07 I.., 3.07 1992 3-08 Le.IN MS } BLUEGRASS. STRAW MULCH S TO BE APPLIED AT W 1115/(GORE. ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE -__.-. _. _. _ _-...-__ -._...__--- I I&B lA NI COUNTY EROSION CONTROL INSPECTOR. BLOCK AND GRAVEL DROP INLET ° ? BLOCK & GRAVEL CURB INLET SILT FENCE CULVERT INLET P, e t 19. MAINTENANCE: RUCCTTRALEMEEAASURES IS TO BE REPAIRED IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50X URES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL ANY DAMAGE OF CLOGGING EWETT STORAGE SEDIMENT FILTER SEDIMENT FILTF,R PROTECTION a'6:.N.±M'`a VOLUME IS FILLED WITH SEDIMENT. AU.SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND • OF GRASS. SLT FENCE AND DIVERSION DIKES WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED �1. woe ft./ ^-.-- of SCREE. -, O wame etaso orwn. KEY PLAN AND REPARED IMMEDIATELY. ------�-_----f -- C SO. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS OF FINAL STE y LLB , STABILIZATION,WHEN MEASURES ARE NO LONGER NEEDED,SUBJECT 70 APPROVAL BY THE COUNTY EROSION CONTROL -."- _ --- -. ",y�1. P._'LA' p --� ------- --r- -_- -_- INSPECTOR. -'_ "_ �_.� vG�''Rr4• 6 Sv4 - liminimearem. i _-.c..wn 21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WITHIN 1 YEAR OF THE DATE OF APPROVAL.(WATER -.el II-III A jYyRj= �� -f PROTECTION ORDINANCE SECTION 17 204G) ,4:,'�I��w [ ��`-- ,..--M ILA -- - 22. PERIMNENT DISTURBING ACENIIYCOMS ENCED.(WATER PROTECTION ORDINANCEL BE INSTALLED ON ALL DENUDED MSECTIONEAS HI17 NINE MONTHS AFTER THE DATE THE(AND 1 �� d q+��N�y+�4i, A�sy y:fad?�`at. !-- • .4,� � , . *Kt KAI.. so.cRrrr ma+ =;•Y«,4 A' ' �Nii: --.-v� SCALE `--C.I.V.r.IER -°' , � 1 I .___r,RR,ti rnn MAT VOICE •ucwlS a r auaaa•If n• a. - REV„ L • a IPWW aWNltpn SENAINT OPTIONAL STONE COMBINATION Ill m 9 I I- I.11 1' '' - a a'r:--111� .I awn A Izr , - ,,,- v GRATE 1 ra I +r wiPt _ .. 400 sly, .00.1,n 44 ':::•:INN• J ' SPECWtC APPLICATION ti X-':4:; �101 _ SPECIAL APPLICATION na. _ .�Mr 1Y B THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE 1 :..rT``a,�7 THIS METHOD OF INLET PROTECTION IS APPLICABLE AT HEAVY FLOWS ARE EXPECTED AND WHERE AN OVERFLOW *E'. ���� CURB INLETS WHERE AN OVERFLOW CAPABILITY IS NECESSARY CAPACITY IS NECESSARY 70 PREVENT EXCESSIVE PONDING . .:!Tb.t,0 .: -I- AROUND THE STRUCTURE .r TO PREVENT EXCESSIVE FUNDING It FRONT OF THE STRUCTURE WES I WON, Caasc - 2 01/28/19 HCG COUNTY COMMENTS GRAVEL,SHALL BE BOOT MS.A057 OR A5 COARSE AGGREGATE •GRAVEL SHALL RE VDOT A3.057 OR#5 COARSE AGGREGATE 1 11/12/18 DAB COUNTY COMMENTS . - _-......_. - No. DATE BY DescripUon Source: Adapted from VDOT Standard REVISIONS V.DSWC Plate 307-8 Source:Va.DSWC Plate 3.07.3 Sheets and Va.DSWC Plate 3.061 DRAWN BY MNM 1U•45 III-38 In-49 ORM APPROVED BY - CHECKED BY DRM DATEJANUARY 28, 2019 STILL EROSION & SEDIMENT CONTROL NOTES A AND DETAILS PROJECT NO. 50075660 SHEE-NO. C5.0 - I I I I 1 - TABLE 3.31-8 TABLE 3.32-C 0 Dewberry IRevrsed June 2033) (Reversed June 2003) TEMPORARY SEEDING SPECIFICATIONS PERMANENT SEEDING SPECIFICATIONS FOR APPALACHINIMOUNTAIN AREA QUICK REFERENCE FOR ALL REGIONS SEED' TYPICAL TREATMENT — 1 TYPICAL TREATMENT-2 UZI LAND USE SPECIES APPLICATION RATES Dewberry Engineers Inc. (SOIL STABILIZATION BLANKET) SOIL STABILIZATION a°OM�A'�aR0050.0 APPLICATION DATES SPECIES APPLICATION RATES Tar Fescue' SQ100°h • _OO K SOr50 Mx of Annual Ryewass(Idiom mule- hNnlmum Care l awn Perenraal Ryeprau' Q10'y. Sept 1-Feb.t5 50•10D,Mvage, IComnerpal«Rea,da^mat, Kentucky Bluegrass' Q1 INSTALLATION CRITERIA MATTING INSTALLATION GLEN (PHONE) ,'°a° Roden)S Cereal Molter)in,«)Rye i SeealO c«salelKa• 2 OMB E.) TOTAL:20Q2S7 M. salt math.swu IM E of Kentucky of Brae ls)s fup tp apposed (5)ed lot Feb.16-Apr.30 Amual Ryegrasa(Idiom mWn-n«uTm SO-100(DeyaCre) JijoRMalntenance Lawn of Kentucky Bluegrass from ap«wed list TOTAL'125 bs. 1NFn M sTTH wPenP M Cow OR ai EKPE.Nzpglt SDI i�'ti� a--. for r vag�a' ums A.4,1 A AC♦ May 1-Aug.31 German MOOS 50 fibs/sore) Tau Fescue 125 as.Red Top Grass«Creeprg Red Fescue 2 bra. / SAS NOF OSS oRO• ROLL ,\\r 'p'` +MMs 11LQER a Seasonal Nose Crop' I20aa, Dux SLOTS TC ER CRCS S.m Ir. •\ \ \ 1 \ in O Z f ,•.e TOTµ'15Jas / •.il�: 1• O TO Fescue' ,OS Ma ,r e,OR nArmK ::-. .- "O _ _ C • Apply 1Q1Q,0 600160e al a rye 0450 1bs/sue fur 101bs./T,I)00 s4 2) Red Grass« Red Fescue 21bs. .AIRCO10a SLAT f ��,Nw•T I I''— \ }_`7: �;�a;•e 1:1)PIA erk ad Agricultural Limestone at a rate w 2 tonsiose or s0 ibe./1,000 It Low-Maintenance Slope Top Cr!epng -/=:' w ~ Z Q •Apply AW ( s9 1 �/ TO B yIp I.v,arils I I - Z NOTE: /Sleerner Ilan 3'f t Seasonal these Crop 22 Ibs Darx , ro Sralo�AauTTm I I I 1 I 1 t;^...� •e Z I-A soil lest l3 necessary to determine de actual amount d erne rewind B adjust Be sot pH d Ma. CrOWI1Ve1ct'. 22.111,5. '� COJIE NM MALL MIA I Q O TOTAL-15)lbs lElserel EDID sue=W JOMT M • 7 nn l/\ I� 2-inc«porate the lone and(adArer into No top 0-6 inches of Be soil Si diMnq«by open means. �-•�� */ OI,ILMS S LL I LL E J-When'Mooing he Closely d n4 0*0 .tear use Be Virgin.00s4 Crop Improvement Assocprove by C(AIVC recommended lu dsd Lau of EVES Jolt) 3 When epWYm+9 Sawry AVaiaCle Nitrogen use rates aveNeDN in Finasnn a Sedlmlenl Control Technical BuxBtm tMtgr•w variaq/het GuaMy sass yell User a label ndkalirg that the,are approved VCIA.A current lu,igrass Ina Jana r N.. I r 1 ' / as OF NslERY1 6• ` >/ Z co 1 S 4 2403 Nulranl Maragemenl for Development Seas al ntNJlwww dLT.atale.va us'swta8s htmttpubs valets UM N avMebe at Ina tool County Extension qR«through VCIA at 80a-746-e88a H at ONe EaIKr (''M NEON O) l l ' 1• / il- - V /w\ > 1,02Jsudenswe.vt edeAMOTWnM/putRicationaroubacatans2.OMOt MOOR as I - / _ j nQ EL c7 2-Perennial Ryeman Ma geminate faster reef el lower soil temperatures than TM FesaMs.thereby browsing s •:,OR RATER -�� Eye f 1� 0- cover and inseam Iem,anu for aeedSod 3•WJI.STEEPER mate{:, I I =.r,. _- CC TABLE 3J5-A 3•use seasonal nurse crop n accordance with seeding dates as s>e•:ed below. r T I ' I talewt acts TO et -11-lfler� w w x J T sows are m M Pe r V' s' ^ March.Ape-May 15" Annual Rye S W,T 1 1 1 1 I l 1PII•CIM�S ML01B•INOmol4 • CO H W OD J Z ORGANIC MULCH MATERIALS AND APPLICATION RATES May 18' Augural 15° .. . Forded MOOS I I I 1 ' Z I— 1- 5 O Augur 16 -September October Annual Rye I I I I LLI O O November-February .. winter Rya . T I I I •: C J RATES: q A - M r -s _.lava If Fla.. sad(rem..to in M... If Weep, ant 107 �._— 1-__..3 �b Z 0 MULCHES: ----' NOTES: v,v a a J n wile.rn eny.sope Le ow mentemance mixture comma wanner seeding geoids.increase to T .--..I I.ro r I I p .CLOSED DICK SAT I _ D (n 0I 2 I Per Acre Per 1000 sq.ft. 30 AO Ibs'aue. 1'ralar aa>x Sim L l I J I LIL Straw or Hay 1;-2 tons 70-90 Ita. Free from weeds and coarse `I 0 Z ZT- Q (Minimum 2 maser. Must be anchored fERTILVER a I IMF �'I"�t�l: r eo e•Net PLAN VIEW ; UPSTREAM AND 0 Q Y CO J D tons for Spread with mulch blower -'r4. Ve9 >, CC STAPLING DIAGRAM r DOWNSTREAM W H Q winter rover) or by hand. • Apply ro-zo Io fertilizer at a rare or 5001bs.; 041(«12 Ms/T000 w.n.) _ J Q Q O • kbly Pulverized Sgticultural Limestone eta rate of 7 tons/acre he 901be/'GOO NI It I •CHEck sods Al MN. TERMINAL p I Fiber Mulch Minimum 35 lbs. Do not use as mulch for STAPLE 0*40.mat,1a11 6Tm seas 50'c-c a4TERVALs: - r .; T„'If'I rye r.� nn NOTE: I STAPLE ea.LEMON FOR SWOT SOL NOT no.0•RH ALL '•'fit C CC 6L - 0 1506 lbs. winter cover or during hot, -A swI lest is necessary to daterm,ne the actual amount or lime required to adjust the son pH or site C STAKE ma LuCTII FCa cora SOL m•aNvaMesdN,,/, `a,'f^ Q LLI r dry periods.' Apply a3 -incorporate the lone and tedfizH Into the top 4-6 Inches of Be Sol by disking no by other meansAmnon sum •e G 0 Slurry. When apfxYiny Slowly Avatade N lrogen.use tale- table in frpaipn 8 Sediment Contr.!TSMnial Sulenn r "".-.' f m r TERM.TOLD ".✓ 1 1G, ^CI Corn Stalks 4-6 tons 185-275 lbs. Cut or shredded in 4fi" a 4 2003 R.IfR i Manaaement for Development Sdey t bac,:wkw ID state.va WISw/efts hrm#pubg r TAM'MALY -' •.. O LL lengths Air-dried. Do not �"�r-"� r m 0 use in fine turf areas. Apply IIIII IIII■IIA (n wit3 mulch blower Dr by I-'�� OPEN oILtK scot `.�`dR!� band. IL L- Wood Chips 1-6 tons 185-275 lbs. Free of coarse mattes Air- - -- 11 - SEAL . SM-14•• �s • tALIB O • ��Y✓�li �q Oa - dried.Treat with 12 lbs �O rq a nitrogen per ton. Lao not ram/ J(/ use in fine turf areas. Apply Source: VDOT Road and Bridge S[aTdarQ1 Plate 3364 u 1:::::aASN-.iA-0Nri win mulch by h blower,chip Source: VDOT Road and Bridge Standards Plate 3J6-2 handler,or by hand. �s tx Ns g3.'d21 Bark Chips 50-70.. 1-2 uw yds. Free of coarse matter. Air- I/QB/I Q 2ar . y or yds. dried. Du nut use in rine Shredded tar.'areas. Apply with t 5 TON\4 Y�•a Bart mulch blower,chip handler, "- •+�Iespe o<rinand. t)/I l:�s•FIDeb 1 FENCING AND ARMORING KEY PLAN I C •When fiber mulch is the only available mulch during periods when straw should be used,apply at a minimum rate of 20001bs.iac.or 45 lbs./1000 sq.ft. I 9UI _ Custom Sod Resource Report _ I ll ever e..— --I II i 1 kl I soK Map a =p i l `I I I I_Il,,l l B Off o f II I,II CRP Lea I I a le SCALE a I Tm �a TYPICAL PARABOLIC DIVERSION SPCA""`ET ( �� 1 9 __� 2 ! 3 t " K.: v. '""' F toe orotund 1 _ _..4�� '". .... I... .1 - re • .•• a E Y fit llll L..m f !11 1t—NI ilF-7l3, ...r, r`\^.' . � nil,. *„ s =111 1'1- FI -= i=,I,il 01 LII .11 UI-ih1k '0 a`r •' ;;;IT I l =';I _ 1 -_.I _ - "aT cup ma .4. .ry.. I RR 0 TYPICAL TRAPEZOIDAL DIVERSION I CORRECT METHODS OF TREE FENCING ess a.; K B in anunMn III I,f - % ,.,a - • r}• s �#n 0 _ lyII ll I 1� f 1 ! °1Mfl1 I d ��I I�I 2 01/28/19 HCG COUNTY COMMENTS .`. f s _I , = II li I i11 III II II II lid 1fll: •� 1 11/12/18 DAB COUNTY COMMENTS '" ` ' .,r-tII-- = K _ -r �/� ' Jp /- as No. DATE BY Description ! g" . R I_ ow-. RE4510N3 S •• Tidy I TYPICAL VEE-SHAPED DIVERSION yje + CORRECT4 or ' TRUNK ARMORING DRAWN BY MNM or .� a a TRIANGULAR BOARD FENCE APPROVED BY DRM r - CHECKED BY DRM ., • *, d y Source: Va.DSWC Plate 3.12-1 Source: V.DSWC Plate 3 3g-2 DATE JANUARY 28,2019 3 �� $ TITLE N ,.. 1 ' - a Map Unit Legend EROSION & t SEDIMENT • ri m __- ___..________- ___.___�.__ ____.__. ____ CONTROL DETAILS i ' ,s."' -'"�' Map Unit Symbol Map Usk Name Acres In AOl P•ruM of A01 A t °.., AND SOILS - ,.,, . 13E Catoctin very stony silt loam,25 0.2 1.9% _ to 45 percent slopes gg PROJECT NO. 5 _____ 50075660 .,><„ •.,.." mthee '•.Y' 238 Davidson clay loam,2 to 7 0.5 5.351 v m not here saw ,r oo zvm .ae ..., ors hms them asn SHEET NO. • s percent slopes •p ...al.Learrersmeaamensxul e,a Y ___ _.. __- ___.______ k N o e O Io so k 71D Rabun clay loam,15 to 25 6.3 64.5% A : > m percent slopes I P ae.bulscan•mva,a•r� Mkla0R.maIa.H@er 5. 1 9 BB UdOrthents.loamy 2.8 28.2%l Totals for Area of Intelsat 9.8 109.0%1 • Section 5. Stormwater Management Plan ;Provide a reduced 1 1 x 17 copy of the latest stormwater management plan. Do not reference only.) Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP)Albemarle County �� i\,� . - i �� \I PARCEL 07800-00-PO-015B0 ) I - - Dewberry /// R'CKY ZEE B4114/6ARONLR / I / 1 1 \\\\\�\ \liii • 1 TOTAL ACRES:f84 I 1: •\ 1 1 1 \ c\ /l'' Dewberry Engineers Inc. •• 1 � 1 ' / .05 LAKE BROOK DRIVE \ I I I 1 \ \ / / SLUE TOO , I I I \ \ 1 :--j O ' i ri IT E , \\ / • ECTI /_/ EETC3.2) \ T17P=JBL IE / / / J -/ /�/ = O/ I �50RNEBETWENBENCHAALOPE l,W/N=J7JJ8(FR,!-7J / (/)l 1 37L / IRON R FOUND z: d.11 / ' / ,� O CIST�1/ S 78// / EK1,M195,063,40 +J / Q _O 1� �75./2 \\ J75.1 i 3'".O6 _� 37..56= O NAGS EASEUEM// 3�/ /RF/' Y T W a Cl) (� 1. I - l // I 36• 3 N'' L 6�� ,.�t7 Y g`� / _ '- _ Li- _ /-7 // / ` / c��j/i - /�� Y ® /=., �, :jam' //i .� //'� /- _ _ / SIR i Q d 2°'S4N SEWER FASEMCVT _ ,/ I rn ffiY i r �fe/f' - / / / 7 OB 4080,PC, 116 / •j /_�(R NE�Nrf�G••DIN EM T 9,% �� J J curam {/� //��i / / / _> r ,/J/� (v%}--- LI 7 CE W X a) u (10 ,/ F // )'` 7-. 77" // ������� e_`a®r�// 1�V�S M 1/F/ // J ,.�� ® [/irsI Z O I, / a /- _ ! --,_/�� 360.90 ��.��• vI 1.z�ow�./T // ' T - /1ss STOP-J9 W C_ /// I f-i ®� 1,111 y �.` /t,_ f o-� AA:NZ � a� I �/f/� - -- / /j� � 7/l iMr iN-. Z U J1S c W W / _ /- - /_��/p/(��-�9 ,S- - AFTGH.�20Y'/ ,rub \ / n u) v C r gi / //�/` � \ /� I DI H /_'^ 6 /„ _- . \_/,_,G;i, � N,a da3 / / //SLOPE Ij7Jl I Q/ � i� �,/ \\\`.. \` /T\ /VV OV) O Z Z_ T `� / //I�/ 6 / - / z SLOPf N-----/ /��P F3.'jE�,. / 42'HDPE �� o-Q T� \`� - L-l \. U O R O ¢ LI- �� 11 ✓ /� ) / a; �'�'• ��° a6\`c�/E / ' l a.a �carGN easy --'` .� 1\ 7 ')'s W H li p Q {'I / �- _ 19 � O� 77,384;108 // G-_I-� /� TOP=JBiO8 SET GAZEBO PAD FLAT,USE �'`/ \ 'J0�I / 4=- -- _ 9J _� TC38264 !-__-.,. - - �/ < a1 / / N=J69.57 �" 6��' -% / //� \ /IIN//N=J79.52(FR/J,'d-aJ HIGHEST CURB ELEVAl10N OF r 00U //yy,,,, _ _ 'S - ✓' /NV W=37!97 FRON-9 /\\ W TC.4G� IJ/ /,N OUI JE9 J8(8J� __-- _-,50�` T .6" ,) \ J CURB ALONG EDGE OF PAD / Y QI 2i .I . >' �y ,/ -� TN/0U7=J7a.80/24"RCP FOR FINISHED FLOOR / n_ 0 1 `; I /" f I // --,-�- -- STM 43. _ / IR£E Ss's ",\\_��y_ I \ J T �\ \ W Q N CL CCI w�.// lyII /. Tc :1 z1/ \ �'\ `; c 7Rff \ J_ DR1/NAGEEASEI/E117 I I 4 I/ / .'- // • TC384.33 / \\ ` -�\\ ` '` / y \ yaalr35"J 50.fT ! _ • \ ti\ '� 1�', } mo aTO.C:. JJ.3 PG bD6 ! / ' .41...' 1. - • ..36 HDPE y .4\/�/ `\ ;�� 7 _ .�5 ��- SEAL .a,w,�L117 pA.Pp:1 / //' j, ' - _ JSTM ' 'HDPE. \ \ \\ \� `-•f/``\\, `- /7 COrl />/pQ� I\ • %.22 / // //"/' `� \ \l u i MON7D XICJ(- a /, , 1 1 1 I / /� •• • • / 0 / / \ \�-` STORM SEWER SUMMARY 1.NAN7 PF1v" ��.. I•.' jam'' \` tm.�o�an y- / 1 L / .APr(,�R H PE ®�11116. ® /// \\ `\� EX6 Existing Manhole 9p 1/ZHlI9 .,N i 1 ;V / ) ,�P�2 Y4,' .. './ / / \ Item N=372 64(New) A'.^,SS Gt1" `--` ".Jla- -�� f I 1, �3�p y�' ro .� ��® as 7GvtL`=�4t,' IA 1 �` • GR e' .. .. mti / �'��.`� ./� \ TIE TO EXISTING GRADE ai?e4"'o I if �O••p0/��S-. .. :� �\ / EX6to 20 11.66 IF d/5"Smooth Walled HDPE al094% _ ( u �/ gip' -. ..� � \es ;f 49 /j ADJUST GUTTER SHAPE TO KEY PLAN I / / / /' • � ® \ PROM DE P0971VE DRAINAGEC ' 1I I ki/ 1l TC 380.50 _ FROM EXISTING GUTTER INTO 20 MH-1 tmfhDetention Weir,48"DiameterCenterof Structure'/ // (�\ /.' _/ _ R f / NEW GUTTER Rom=379,48N:3,899,509.64. Illf I/� ` '-�- • / _ Inv Out=372.75(15'1 E:11,4965608 05✓/I� TC 380.98 4,>9i /' / \ I / \ Inv In=372 75(36')/ III /1 / STMIi �, \ ./fr _ _A .• `.> \- I \ V f TC 384.23) 25 '/ EG 383.04 0,c / I 1 I 1)\ %/ ` �1+�� j / �1 \ 20 to 21 24 77 LF of 36"Smooth Walled HDPE at 046% II I 1 Y l' ",, •:4 "`o�"'g4FGG�.' �r, I I, / ��� ' .'/ �PJ,\.(,RFI9./ TC 384.00 / - E` 21 MH-1,60"Diameter Center of Stucture Pa,.EL a"0 00- -07600 1 I /5" DP , STM / it` .NTO.,P K• C [ / / } 1 24 /' �pSJ>'%�' �� 1 Wm=38353 N.3.899.d85.78 SCALE /(.O.B 309,PC /98J III I f t� � 36"HOPE S. Fps-/ /I \ \\ Inv Out=372.86(36") E:11,496,601.40 Z0 7116;'F.,f/B IVO A70r�. 0157R'CT 11,1 /,r /� / �\ \ Inv In=372.86(36') D .'ON.,r_/ I 1 I / STM •/- 36•HOP :: '*//l'• / \. - TAL,CRE.J 1 Z.; rl - 23' _ .. /� I _ \-\ \\ / 21 to 22 3983 LF d 36"Smooth welled HOPE of 0.5% 0 10' 20' r • ./ \ • II }''� ���� / 11 \. \i 22 MH-1.60'Diameter Center of Structure - GRAPHIC oCALE /�r {I 9 .. .. V� 8itTC 382.27 /�`�� \ _ I1 II J /. • /y.' ,ss�� 382.6�t I \ Rim 383 17 N'3,899,467.74 '�;'9T' �,•" 91� \ /� InvOut=373 O6(a6") E:11,d96,565.90 J76,_I ',I I \/ 2 71 -30 '• ••••- .# 1 \LIMITS OF DISTURBANCE \ % ,A Inv In=373.06(36')iII//° I 1 c, ��/ 12' �1 0.42 Ac � \ \''K�'S 9 � / Inv In=373.06(36•) I n �29(TC 38224 TREE t \ I `J /i >`mil% / • �y�F e, �i , \ \� /�1 / II ' 4 ,, _TC'..3.81:58.ytc•"EG 8 4 ' r TC 383.22 1 / //'- 22 to 23 75 00 LF d 36"Smooth Walled HOPE at 0.5% - / ' 7 4 - 23 MH-1,60"Diameter Center of Structure B / I I / 15 HOPE: .,, STM \�•�O®� I �// ��// Rim=381 64 N 3,899.420 21 _ JUSTG 1qNG TO (TC 382.8D 30 ` I '�. _ RR�� / _ \ / Inv Out=37344(36") E:11 A96507.88 / 'IpzAIN AC¢ESS T,O / 'I "` 7C 382.80 I \ L) //SA T ✓ST UCTURE !� ' I 7 \, TC 38292) I \ \� / Ij, // Inv In=373 44(36-) . // CT 1 `Ir�/ / : ., \ 1 \ /�/ .S7G by In=378.98(15-) 2 01/28/19 HCG COUNTY COMMENTS J // / I y�(/ ,{ ,I y EG 3B206�0Oj I \ \ X 1// OVERHANG 1 11/12/15 DAB COUNTY COMMENTS / / q+(\ I l, TC 38280 I \ �" \\\/// 23 to 24 17.50 LF d 36"Smooth Walled HOPE at 0.5% / // I/ /J / �� I \ / / / IY/B,Z'CK No. DATE BY Description COLUMNS Vs ( 1/�/ - / ® \11 / �\ / / 24 MH-1.60"Diameter Center of Stmdure REMSIONS / // I I \ j! 0 / �/ // Rim=360.97 N 3,899,433 TS MNM -- / �.'.•. \ / 1 / Inv Out=J73.53(36') E:11,496.496.79 DRAWN BY \ /j/' --J IY / I/ qP-J8.J7.`�J�® ) I \\ \� / Inv Out=373.53(36") DRM I / £�\_S_7RC Z TC 38311 \ 1 / APPROVED BY / // MH-1 TQQP(.IVER \ ','� g 1N=37LC6 `\1 \_ / Irwin=375.75(15') t - DRM E�(ISj)NG 1I I TC 367-70 I�- \ _ =J7b.9b//5'RC \ �. \ - CHECKED BY \\ / • / STRUUC,T�j\E Ip \ 1 I.\: ' TC 383.01 1\\ / 24 to 25 19 59 LF d 15"Smooth Walled HDPE at 0 9% JANUARY 28,2019 j DATE\ RIM-81. I \) / �\ E70ST T I/ .I \- / TC 382.92) \ II \'\ // 25 DI3A.L=25 TITLE R�� i // am36D5D GRADING AND I,/- _` \\\\}� Inv Out=375.93\ I y / ` w:`_�).P>i ,� / \ \ I\ // orncE/AOM/N/S7R47/0Y 8U/LD/NG Inv In=376.85(4"from Cleanout). ' \ - I 16BSPOTNAPROAD DRAINAGE PLAN �- I I I 1 -_,_ J/ / / \\ \ I" / 7-STORY 22 to 26 17.50 LF d 36"Smooth Walled HOPE at 0 51 \� / BRICK BUILD/AV 26 to 24 75.00 LF 0 36"Smooth Walled HOPE at 0.50% 1 I 7 -J80- - '. „ \ \\ A �"I I I 7F I /, _ .- �4 'L' J FF E2EV=J97 JS - / // SET CURB GRADE AROUND \\ -�r- y !8T41'IJ"E 5000• ?„1 L RETURN TO PROVIDE SMOOTH ./T f(tY-JB543 I /I / / / \ I TRANSMON TO EXISTING WITH A \ \ \ 26 MH-1,60"Diameter Center of Structure STRM Rim=382 35- N 3,899,481.27 / /0 / MAXIMUM ASPHALT SLOPE OF 8% // PROJECT NO. 50075660 -- I I NAIL FOUND 1 \ / /<_ InvOW=373.13(36") E:3,8996 81.27///J / Inv In=373.73(36') SHEET NO. I 1 / - N.3,899.357.03 TOP-JB�56 /� \ { /� -\-\ II - - - T,1?�o,47T4� Nv iv=37aoo \� �---- \ \\ I / 72/ • J '/NVPOUT=J7785(IS" \�\� \ \ 1//// \ 231a 30 15,69 LF d 15'Smooth Walled HOPE at 1.85% /\/'�, I4 I 2 �j� \ /�/ /' • 30 DI-tA with Type III GrateRim= �/3• 1 I ----;iB2. 7 _- / STRM \ /`�.`x..._ /-/ // Inv Ou382 8379.27(75' - I - I I - I - • Dewberry® . Dewberry Engineers Inc. 4605 LAKE BROOK ORVE SUTE 200 GLEN ALLEN.VA 23060 E 604.2967957(PHONE) 804.206.281 FAX1 MH-1.60•DIA MH RIM=383.53 NTH-,60'DIAMETER 'H'r INV IN=37286(42") I0M=38235 C •385 INV OUT=372B6(42") INV IN=373.16(36') o Z INV our=373.15(36') 385 CC E MH•1,60"DIAMH 0 MH-1,60'DIAMH RIM=383.17 RIM=380.97 I 0 INV IN=373.06(36') INV IN=37S75(1S) c7) z E QC) Q INV IN=373.06(36') INV OUT=373.53(36') = z z INV OUT=373.06(42') INV OUT=373.53(36') < < 0 < 'rIIIIIIIIIIIIIIIIIII MH•I.60'DIAMH _ W a. c MI-.1-1 ® M -1 W/DETENTION•TRUCTURE �yI EXISTING RIM=381.64 U X Z CZ EC S RIM=379.48 GRADE INV IN=373.44(36") — Ui < EE > GI. INV IN 372.75(42-) PROPOSED INV IN=378.98(15") 1 INV OU 37275(15') .■ GRADE INV OUT=373.44(36") - W j / IIII I— W J z UW -/ _ c j - / DI.3A.L=2.5 FT e. 0 C W RIM=380.50 / INV OUT=375.93(15') 0 O Y Ill LI- J < Q p 2 < Ui - U 380III\ \ � N. , \ 380 W p N d 15'HOPE N m 0 \ E5LAII SEAL ®4�yAtatI OF 4o . �w�(/ram G VINnlePE !JIX" LK.Na CM 0• �,�o IA419 cps f:4414 1A66�CAN ' �btn+ln,� KEY PLAN C II itYRWSE376.51 • 15'HOPE ril • • 10VS37595SEE DETENTION OUTFALL 375 WEIR STRUCTURE DETAIL ON SHEET C5.3 _ 375 SCALE • 42HHDPE 36HDDE 1 VR WSE=37474 ,7.50050%42-DPE 39.83-0.50Y III • 75.W'@0.50% — 0' lo' 20' 24.7r@0.46% �— HORIZONTAL GRAPHIC SCALE p (REPRESENTATIVE OF 1'- 10 ' (REPRESENTATIVE OF 2PARAULEL-PIPE$) 0 1 2 EXISTING 15' 2 PARALLEL PIPES) .41 II STORM VERTICAL GRAPHIC SCALE �.�I. • ■ HGL • - 36'HDPE M36•HDPE B II COI z_ 15'HOPE -J 5 11.66'@0.94% iioo 2 01/28/19 HCG COUNTY COMMENTS 1 11/12/18 DAB COUNTY COMMENTS No. DATE BY Description REVISIONS 370 • ' EXISTING 370 DRAWN BY MAIM APPROVED BY DRM ' CHECKED BV DRM DATE JANUARY 28, 2019 ALBEMARLE COUN• TY GENERA CONSTRUCTION NOTES FOR STORMWATER M•NAGEMENT TILE 1. ALL OASIS AND CONSTRUCTED FILL.MATEAAL TO E IWIHN 95%OF MAXIMUM DRY DENSTY AND 2%OF OPTIM1NM MCISNRE CONTO T.ALL FILL MATERIAL TO BE STORM PROFILE EXISTING 24° APPROVED BY A GEOTECHNCAL ENgNEER A GEOTECHNCAL EEGNEERIS TO BE PRESENT DURING CONSTRUCTION OF GAMS STORM I 2 RPE AND RISER JOINTS ARE TO BE WATER TIGHTNLI-HN STORMWATER MANAGEMENT FACILITIES 3. FORTEAPORARY SELTMEET TRAPS OR BASES WHICH ARE TO BE CONVERTED TO PERMANENT STORMWATER MANAGEMENT FACIUTOS;CONVERSON IS NOT TO TAKE • PLACE UNTIL THE STEIS STABILIZED,AND PERM SSION HAS BEEN OBTAINED FROM THE COUNTY ER090N CONTROL INSPECTOR A 4. STEPS ARE REQUIRED FOR MANHOLE DEPTHS GREATER THAN A-K. 367 367 _ PROJECT NO. 50075660 • Fi q u?F SHEET NO. 9+50 10+00 • m - 11+00 12+00 12+25 C 4.O I - I - I I -. I - . - Dewberry® CdtduitFle.Table:Stenn Calculations Dewberry Engineers Inc. UPstrezminlel U she3ln System CA rystem' Dlarneter Invert Irnen 'length StoPO' CaPac FUII Vebcit /tydr.olie HVdraure 0005 LAKE 960061RAE P h„ ry( V sUTE 200 Stott Node•Stop Node Irten6iry flow.cfsl IUntiled) (Calculated) Graoellne Gredeiine Area(zees) irile[C (attest C 1 (5tarl)Iftl„op)lh) 'Flaw) Ihls) GLEN ALLEN,VA 23060 (IAN (h) if1)ft) 0n)Ift)- (04(hi i 8042901957(PliONE) ' - n25 Detention 0340 0870 0.296 6.666 1.99 15.0 375.93 375.75 - 19.6 9066' 6.190 4.490 376.49 376.24 604.290.7926 I FAR E R30 Detention 0.050 0.900 0.045 6.672 0.30. 15.0 379.27 378.98 15.7 0.01E 8.780 3340 379.48 379.14 ' Detention EX.6 (8/31 IN/A) 0,341 6.642 2.28 15.0 372.75 372.64 . 11.0 0010 6.460_ 4.810 373.35 37317 385 385 CC a) Z OQ 0 0I.1A Nl TYPE III GRATEkliii [EXISTING . I- (n E• Q INVDU1=379237-T50 / GFUtDE ? Z Z 111 • �l Q Q z MH•l,60'DIA MH GRADESED W a c 0 - RIM.381.64 23 • 0 >< Z CO 5 INV IN=373.44(36") - - > W Q Y. INV IN=378.98(15") - 1C cc O ui LJ INV OUT=373.44(36") x +-, �� (/) I- W (n J /,,i. Z I" L. > O,� , � WQO � W I ZU � .s w OZZ O p - . UQYc0 380 ___ 0 W 2 Cl- o 16"HOPE W Q CV5% CO 15.69'C�1.8 Q HGL • J SEAL ecoLpLT 110A,8g - - �.J / A'/4c4 EXISTING STORM PIPE • ,j2`�W/;_`�'!/� 7/y.�t^°�(A,�t m (0''''. KEVWANYDfcA] dQy - 'tic Na 0.vPZ1 q,fD I�2.#/I i ar't70YAt•£��AtP. 6bw...h' KEY PLAN C • Worksheet for Inlet#25-Spread from Curb Along Parking Proledl Desu tlon_ .. -. 375 375 Solve For spread' SCALE Input OatO . ,.._.._ - .. .. . .. - t 0• 10' 20' .0oWge 1as MR Gull min 2.00 n - Gan.000St$i _ HORIZONTAL GRAPHIC SCALE We 0.03 Wri 1'=10' Road Cross Slope 004 M 0' 1' 2' Cob()taming length 250 n InI Opera g Height 0.46 n VERTICAL GRAPHIC SCALE Cob Throat Typo abTMN 1'a 1' Locw Deprescwn 1110 .� 36"HOPE Local Dapronsian Wont ' 250 A I 'wool lnciire 4i4o 90A0 degrees _ _ _, _-._.__. _-.. _ __. ___ _T �,..__ _ _ Sprung 6.14 n . B Minn 0.33 ft ' Caeca DopOssan 0.09 n Total D 9ressne '0.17 It 2 01/28/19 HCG COUNTY COMMENTS 1 11/12/18.DAB COUNTY COMMENTS - No. DATE BY Description REVISIONS • 370 370 DRAWN BY MNM APPROVED BY DRM - CHECKED BY DRM DATE JANUARY 28, 2019 TITLE STORM PROFILE AND . . CALCULATIONS - A 367 367 -- - • . em61rsyslems,Inc.1..2.111010400S0aaron Canter 6enuo Flo.Matt0+v111(SELPCTa.m.II(0e.1l-02221 1114'20101.OT.nPra 27 Sto,ona Coaryeny Ceti.0e0.200W W04Mam CT 01009 USA.1-24313i166e Pape 1 el 1 PROJECT NO. 50075660 - SHEET NO. 9+50 10+00 10+50 C 4. 1 • • 1 - I - I I - I - 2016 ROAD 8 BRIDGE STANDARDSDewberry® 2016 ROAD 8 BRIDGE STANDARDS HALF PLAN.VIEW I 101 'r"" "I t-9Y,•PA ne Lr1rD3z vn o r,�ror.•,w . We• • D 42" HDPE DETENTION • / r"ESNCDm„ D PIPE ` , ,',�\ DdE i i ;,.,.•. .4' A ❑❑❑❑❑❑❑ .A Dewberry Engineers4805SLU AK '" .603 WIG:BROOK OLIVE SEE S1035;0 S1.0 FOC it X8655 OF SAFETY 560 I1IY � 00 ' D DP a usaFr rs ro a �r 1 ` B --h#'- -C f�V.®.a.8. I❑ _ _ _ GLENALLEN,VA 23060 • 1 BDL�G795'r LPHONE) E fDOT ctat rverz ..Ert L I Y/GtOE M18.•P0.'STD. 4 'S`gI ��� �" 6242,g.•m"R.aO°w-zEr'..'Er er �[- j, I�I .w" ArEwcon 0 Z C _ 5� ,_mS7. aM r'w1Uw�EHx` vEn BY �-" _ TOP �C II R cOMR 011_ TRUE 12 t42 5' BACK OF FRONT OF i`�'' 1 ,HALF SECTION A-A - /�i' iYI �\\ mvER _O • FLOW WEIR II. WEIR FLOW A�, ---_. m �A BRICK.n.rrirre� CONCRETE / / � •� \\ 0 Z O C Q I• 6 r- �-__ �1 Q a.E• mANT SHOWN ME r m TES- a PLAN L4 e W (q Cc 1Fa,r PPE r E MONT - Ds7.4'4"7.F.:".6::::::::: i tada°�r,em D NM.or W]umES _ _ i_ I I T:-•yr mo* (� �( z (� cc 5 15" HDPE STORM PIPE + EPPM ovx- MWELEs ` ` ]C011rC°o a,DmrdrE.o, "ro•m. ka - 5Wa 5_ es_ a CD W' I 'A >o] rO' 1t� eKno,FL«Ys H¢TieED Faa.u .. u¢wE- illi ® �s9i ,O Tes s'as mst 5 oriae nL�oEssEs rrsacrFro Macau 9,- 1 -. !! ± 'o ]��9 e.u°me'a%ir.E'+.wc:s s,ro,rc,rre - mIi -.r9• I10 0970 '.ss TE io St CLASS At Y."P' ' ENx^R � 'W O w 4• DIAMETER SECTION B-8 u o, o,,T iv T'xrHE,E3LR,rs[To a01lhDxn''oa., y - ( Z U c ••• so ORIFICE 8•THICK CONCRETE BRICK CONCRETE OR ze D9]D ,s0 r10 Wig P.065 yal ua q; 5 I cm - 5 = 1 () Cl) 0 c 0 so WEIR WALL CONCRETE BLOCK oho Ems M eo ( I r-m I I - - .r"s-D. Z W " u _ Fw0E 0ca 4c 1.0 6,5?a 'SECTION B-B BOTTOM I, O - r 0 • D • TOP VIEW HCRED,Rn,- os '-' aaei �VC70T ..- w�T - W 0 Q MANHOLE FOR'12" 48" PIPE CULVERTS m D MD�«51F9 Fos RDAO A. STAt0,RDS TIEN EMEEE° _ STANDARD MANHOLE FRAME AND COVER , Jf•�� Q Q O 8"CONCRETE WEIR 307 vRraa..CEPARi,Evr r rPw,•saar.Tr3, aysiorA DATE meo, 0°f s• REvtoD+OAR vn atA CEPARTumr F TAMPORTATEN . tl 6L CC WALR - 2016 ROAD Y.BRIDGE STANDARDS - < W 2016 ROAD 8 BRIDGE STANDARDS CC • 42" HDPE 2016 ROAD 8 BRIDGE STANDARDS. - 2016 ROAD S BRDGE STANDARDS C a O _ DETENTION rti I �A s<c1Rw CAST rrox- -A sEcnD,STEW • .NOTES I °'''`• W O a- - PIPE - - La - • N T Q • �%TnTM( rI. .8/x` I L 23j 2 2Vi i%' E rEPta a eEE1 rfo TO HI Shwa ON ,x:0* T Li. wavily OV,H cWira EMT ETUSE •1• M or ulE,',xf rO 6 sAD•x W R.ws. portE� J •.- .. .- 8 rn 1- IL I ~ 0 D.,.- k L u r,l,OEPiH IHIgO �'�rw EEPTttS T'M C�'CeiO ff DEICED MsrLt�G4 W,KCAT a VJ p B L y1B' THE x DAExsv,sxaRx w, �.• icss rxa, ill' mc coFtmT ,o Pawn • I PnttD RILL SE FROALL PPE M 1115 INVERT cr • 11.2) 1 a.SE AT&x"•Ec�rE 'r,e4'O'Pi w ME slr,Fo "°m".°FOR°Cri*c"u[°csv r"uoum•.. Oa90 tl g _ jjI -D - criai � s,ut - y 'ar`RLAi[roe'i rw Estoursien - }, - r ,1Rit� wrr,u Paine r B R"�oM mi.E£MP rmE nlx e-.c- SEAL B' -MoTif pp ad" C ED 5 AL TCP Or TM L D3E%F D i E kr D E as F I{,.3 wge: °� :m%imDe>a Fa 15" HDPE I • - eA�ci .s a vies of D TM A er nE -� I 'Dry w - • STORM D. i Las I iD°"`<uioxmlmacrw rpw Finn caanas. "_ F PIPE ° Lm+e:'. s o:,rxe nAus,HE �. ' ,,.L__ C/ TM ^ PP usemtF�sT TiE� owTRE o.oauPE.E"rErc u-+ urovurt Cr• 7f ma aorHAscsnDar i ie¢D.rswe / Dtl�sy�r Sias .4aagn.° 3 „D.104..i.°e I Dc�Wa,.,•c _ T'O aL sEN weo..wrCCPRONME RE PLAM To Psr°`E".rORETIE,. T O fj�>1�/!r! ^6 iT STEEL SxrL.Mat kkEE vv"WW AEX' • Miel I YI r+2Eur4FrD A:21 UPA raEr,iO s L � 14�canE°5 EIaso PTO F L, ,S 5 N n • . et an d' • VUI0 , 4Y 20 0 rE w Para K m4E Poa STRUCTURE AALL set z:L rD CLEAR .. 'Dcnn manrzl f. ''''r/utGs J I` I l v•..- "Aw;r,u. t i 2--r _ et SE vENI ha MA`".'.m of 0221-FAA , �r. E ` s" PLAN. 1 ,z 19Yr I sc'oL-°74s is vwr,HE 9+JCRT o-TiE { ° •6 i` "+,ACPace°lreELr,Att'aaro of AT 'Ap I/26/w W'Y' (GRATE REMOVED, W E ,-r X".I.�E�14�1 OL Rur,li,°E ccmi4.0"'" lOfq Pu 'O. h' Z • •sQ CM., r I' •.� mPVIX RP C O i C DRE�ESE�ND(T " c. L iD RE A YeWa O A'SB 'G`�•. (----prt.-W SECTION A-A pia ZK 0K as 6%0 re.sE o..w...do,sv 4"" wa :O,YAEt~s',"rmz Pvrm�'Dr ar�r"(wz:rc _ tR.♦BACK OF FRONT OFSECTIONB-B s :1a • COLLAR 3m,ETE ,Eos.Fc -w CE,us sa�irmSEa.ErawcaarRuclwxAs,rausm. sd COLLAR DETAILWEIR WEIR - �'1A2-'1B,Exc rrI eu�' caaiicEST°aucrV'vEF°c a iws Rru wr ff crccAsr OR�rsr-x-wcE.r L F r s",Erm. KEY PLAN f f H SCR DEr4LS NO 0000,5,ETC.Cr CAArE NA• [k +.0(.+P NO viASTE CRAvs r0 vtattRFArs'S s5POZC o r 07ERAI inrsaL1 n Ou cAst mtv,cav+r scE arnouro 50. C. FLOW Ip�, TRASH RACKFLOW I DETAIL B I %•°'�^" r. n .D D - n DETAIL A ma.w,Q.aEcar OR CAST. t_� onvE Horn �, L H D ° c P° noTHNA4c r-r r°- II ..L 'ttr rx•< •r a cc o6 O.i fRY•VG4�EIoR A D - _ A ]•-r .•OEP AGdt I I r 1 "�r r Pr(ONL,D i,',LLAs enJ:�,1 r :y°•�.'oiH. "' - . n yM I �II, ;,+ ie:e°FOM DDDDDU�D�DDDO leg .01280u3 M SIDE VIEW i E� h HDrw uAr.• ¢Tn.t = a Dace r ..,e-n,.r AUNTEi,rwEAm,ao r.da,.r+01 I I STEPS SEC LOAF s. (PERPENDICULAR TO „ry,. ro,"�,=..»`oARs m-`-Em s e , ( , ( ems v ., MDT x.. DIREC-IIDN(PERPENDICULAR = 9 DDDDDDDDDDDDDO 1:. 3-D Er,�; t_ r i �r H . Rm9 LENGTH $$ 3GKDrV�rAM pO°o's`rtrEEai�ari�as.". - RAPS r5 DDDDDDDDDDDDDD °o.„aa`�°o1MI6.•REEP �r DDD DDDD DDDDD 1 ° a N�FLK�`a11 %MDT 'nf T o ATE n To eO +o-nrRD-�r, I ews n Tr cc SCALE 8"CONCRETE WEIR N �• -IB L' corrmTE¢T ee,o°ACro vLr EAu,TA Fw 4 48" Y.• + D i 1 , rca 508IE(MrEPM% • . SECTION A-A �� r1' V N+'r KrEMATE L,E1xDD5 P uA}SaA;EQC WALL sQ GCF.I 0..p1.1.1.1.1.1.1.1.1.1.1.1..'H' '.'I m2 r TPMIOO T or nz Ets.EEa ° 1 -,-T mHcai[ CONCRETE QUANTITIES FOR CMC.IN.DEPTH - a.r�.Uhegs Rmraaw THE dlsr ww (� cc rncTE a HAS TO BE AmED FOR EKH - - °i°�C 30L-.uso w i0 Cd+RETIE 4/, II^ eeA1C.,s3 m„. °'L[lrr.A*4e�OWs�.u,D1 0Arr T e45 F tt•Uc COm,ws _ Or•aETER E5 vn O o I06. - ELEV=376.20' ®c°wc�`azrz PPii"La°°wro'Cm�r'rere _ -I eax eu Faw ,� =1 SECTION C-C SECTION D-D v.irc ev u`r"FaEHONieiLw�a; :• S5.7 TM f REE ED+f.'13 SI Mg DD•,we9 iP2.4°DrTER SECTION THROUGH ELEVATION m• s a a3.rcPcnc stuL mPiw- GRATE DETAIL, emo ELEV=375.20' �VDQi V[]OT • • rom am imDE 514aARDs STANDARD DROP INLET °E� STANDARD_ DROP INLET RER I1*100 o fitDEE 0101 0 A 15 HDPE I., aww DUE 12"-24"PIPE,MAXIMUM DEPTH(A)•10' Rss •ss3 i2"-24"PIPE(DEPTH(H3 10.TO 20' a v lE vaEr ,a STORM c0501 VRI*OS CCMARnaxr n TRANSPMTOT1F Jo7 W2 vmw5A OMPAR.E.t CT TTR,TPOOTATER, :KO VDOT STD MH-1 PIPE 2016 ROAD 8 BRIDGE STANDARDS 2016 ROAD 88R1]GE STANDARDS MANHOLE TRASH 20'I ROAD&BRIDGE STANDARDS 2016 ROAD 88ROGE STANDARDS STRUCTURE RACK \\ 'v o-sA>a ° •x I • cR T s S» E F9p1 [D eMr a. 13584 3P.3G B 4" ORIFICE E*°""�''""' *`" fin" A":, TABLE OF QUANTITIES • ■■■■■» SEE Slue -r • ■■■■■1/ D.R�11 ����• TYPE MCA - REINFORCING STEEL �7L��G% ELEV.37275 • itawv . �pII^7 `.■.rtn'*`.". 1 I aaM° ° • S y111i >atmnm�!� $A E ro°ao-eA ' s 2 ,01/28/19 HCG COUNTY COMMENITS ° YY _ D ,u °D - 6 ;I i n• _ ` `� ei o - s'- r- �° 1 11/12/18 DAB COUNTY COMMENTS • - F^rE;_____-__ '.•,�-,661.6 - d-]D ♦ 3Po 5 Ti F• s..rme•-v.•� J (S'_]" 6Tb• b' ].r p' -� eu .n % zx es•a•is••m: + S'-r V-e• L. 7RR No. DATE BY Description FRONT NEW A emr[5 T.3 51z s_ ]+ _ r->• s-a• 36 - • (FACINGVJITH //�/diMMEEIMMIN Ii) e• ye' azs sRs s .3.6. -sp name_ 3 s_r .-a 3+( RENSIONS DIRECTION OF FLOW) I Iza• "5 xr. 801 rr ,(i=m_ a 5'-r T. 'r-P- PO" 10 sun PLAN SECTION A-A a f-A L-vanAd[-uu.ICI Av u.v, c' - 0 x ' - r _ ra ]cs DRAWN BY MNM DETENTION OUTFACE WEIR STRUCTURE �° -B • s a P...0 e 00 F_� APPROVED BY II 4 T-RT amp DRM • N.T.S. (SOURCE: DEWBERRY) �,-�:s, . 'En� 9 F.-P' ��I�,I D'^ �o. .n xne m R 9 v F e,F ".1 "s] s r_ .•, a na- -t-o- ... - CHECKEDBY ORM s G kW . . ' __ _I m_b ff.�� � NOTES• .- DATE JANUARY 28.. 13.5E I-B A, A-_-- L 1s H 0f our DO to 0E.soirx w 0Laa. T, ••c e-wooM IMPELS AT Avvaowattu•'IT , nrs WREN.a.MICH CASE. 2019 •3s daKTERr - r�6 E - et aKm x Rl FGrv%e0EA s REl F'P.or0.v To eye\\ „OL[ A ffa r.DIE1Sw SHOM w TIE S10I US 0 i®IrTLO'C lmtDETE TO PFEVEM PRB N9 mrTER,i • _,L //' FRONT ELEVATION e"°s 0 . 001 O w Tea PiN5 Tu RE e t iIR��O1i (ar1ER.lE,m"m, ews r ad+MC amt.cr OE wsuLMANTSTMv O o> Tw or...sTwcTUM s3.m7. E.MLE TO DC LOCATED To MCP 5,-11MMT PM.APE FOR TITLE • ° E4 MATE SECTION a 1....1EKPrD,na" VIVI:tIk i l&L,E �a.I*3a,0;, D CONSTRUCTION F [STnu1W0 IMFDDTE%uW TK KrOa 01Y% riC H,cpvtuE RDTH'/i 1E4� Tw�m,Y WruMES KE 5'OT T • r,�5 hruL of cEi[narLD Di'iM 0 tQPQi,,� M ge1FaC, • DR rPa,TEED GapLP, ,Ls , : aTE TDB E.���r • DETAILS sPECEEDO W Mt RF,s TTK FHmARS `OTIi 111° k4Lr io r16"'MEE iK ,A-R L vrEn HE srwcruE. s,Ec1, • -A ma DETAIL EPLL E MSED MF m-3 A COM%1wOKLs - sv•xrd 13-1 EK<Ml OF FTME eG MD 1LKM 4L 9 C.A EORCMG STEEL AINL WYE A al 'r' m 3 6 i0 VCC..6c''ai'Sa G IT.,;,r_ • G Z.wZ[DrA- eRAr0.(�UE,avoirR60 wT+O rp M'STt\KT°Lp6EE Or r. r ROM DETM.SMALL a MUD Mx COM R CMG S1MEARD%. y _ a,L d s500 ro ee wr neen ar 6•MMTES LENGTH OF of O sAF CRV WZm RAIF Idi'1�.A To H Er+I w cal u%Erd�a eR•3d• A 1#a 10 OrYlCSLOP AT rC fO1i WELDED • E. u1S TO Mr • • CDMC,ORs Fin a i unOaEO Mx yr•L• 5,E41 NOSE DETAILS • siPLV^o IOIO T0v�EaMTT"Ea TI OTTILKiL p e/,Sr.N xacE cw+0010 A 10 eE tt.6s r3 sa wEu 1205 5 0000P°0 o°•av'�00005 0°r A .Qnm TO DENT PLATE AI zcc. 2: oa'LO0a ,,RrcOasr carFcrc r,ro az t b-Y PJD L d-X L .,aPROEP vr[1EHr' n THE rsrauc:wE"Dix COSTOr rwrarsais R PWOP r=y I i r �RD�R9,L,.a a Ew CAMAS • ,���®FA y� Arail■■` KW.E ro HQ"aRE iK Po I I ._ --, ' s. Tau ME 00 1100,E a --- - VA.'E3ra oa PROJECT NO. --r nece=„0,„ i- _-_4 +t--. ■ gErs�E roeEPaovixow�ix H rs,'o• H EnaTTT.6EL�E.'Em•mttDna s To. 50075660 - ;,'N �--, tQr.rcm carats SEE srxouro.sl-3 UE DE+AL,.gE�paI - FLOW. I E"F r.. E. i14 ITN uAY E PIKGAS(w,CASi-M-?EKE. ,C ISEOCrn°%wr.c'RHmo°'sHEE"NL150 1010 • SHEET NO. DETAIL WHEN USED. CE1AEs O 3000 ox sr.,o4+o dunno D us r0P MU of GRACES ADJACENT TO CURB . wM 5Es To er svn1cn WITHOUT GUTTER Po)D A003).s YEJME5 STANDARD CURB DROP INLET wEc cRDAis" nirt 3~rtE" STANDARD CURB,DROP INLET R5,0 F• N��s 00030% 5' %RCQ(Or 9 PEursw DATE 12"•30.PIPE+MAXIMUM DEPTH(H)-'8' v c],.09 own, - 000ARA DEPa0Twrt 03 1R*KPmr03R ia: US 12'•-30"PIPE.MAXIMUM DEPTH(H>-8' aEVGaI oars .ET a s 302 050 0002021 d tRMSPOSTATOP b•.n • 2016 ROAD 8 BRIDGE STANDARDS • Dn1 R 1f]A0 R 0RIII,r RTAAIn5Rnc WATER QUALITY COMPLIANCE SUMMARY I Dewberry' PRE RE-DEVELOPMENT C —' I ' I•.• :i FOREST/OPEN SPACE(16%) 0.10 AC I 1 1 Dewberry Engineers PARCEL 078CAJ-00-00-0 1500 Inc.I Luce snooK olive ♦e♦♦ MANAGED TURF(63%) 0.35 AC CROWN MOTORCAR COMPANY C L I PARCEL 07800-00-G0-015E0 / sure zoo • FZOW 1J1J R/CHMOND,, LCC PARCEL 07800-Gb-00 01500 - GLEN u�eN.VA c nno mil eoamissT 1PnGNe1 /OB 3617,PG 475J D8 2&J9,PG. 149) ✓OHN G.AND 54N,OE S LINK0115- ZONING.HIGHWAY COMMERCIAL ZONING'HIGHWAY COMMERCIAL (DR 1025,PC 239) B01�6�2°'F4p IMPERVIOUS COVER(21%) 0.12AC LAND USE COMMERCIAL OE EI LAND USE'COMMERCIAL I ZON/M;NM,NWAY COMMERCIAL TOTAL ACRES 177 TOTAL AREA 0.57 AC v`�� yp TOTAL ACRES 069 LAND ALUS MLRCIAL 5'RETAINM'C WALL '\ "E J7517' __ '� i ENCROACHMENT EASEMENT- 1/'- A--- --- -_._-i>•"..- - r�4 A� snrm.4.�„ •, - _ IRE i _ _ O Z -0 ADEQUATE OUTFACE 1: I De 4080, a 132 _-r-�� �, DRAINAGE AREA ONSITE(STAIRS AND = i f' I ~ 1 ;1 ' - ` - - _ H Z z E Q ONSITE TO#9) / / PARCEL 07800-00-Gt-0>40D Z I A. i - — I— _T ( 1,i 1' / r. ✓OHN D.AND,A4N/CE S L/NKOUS ` ' ___ ._ < < O < ONSITE ARE =TO 9)A ° l / 1' 'i �(/08. 1025,PG 239) 0- (n c Occ �"- ,' ''• 5AN SE)#E'R EASEMENT / / '`P. , I I ZONING-HIGHWAY COMMERCIAL w Z _� s - CN-76 kf . 6. , LAND USE:COMMERCIAL - i' l ;' ;{' J / GB 4089 a'. J25 / / Tc-5MIN ! ( • / 1 .....-. I; TOTAL IJB < 0_ 5 cc QI= 0.44 CFS 51 %;' . % ' .r; ) - --r EAT > X W > / I Q10=1.27 CFS DRAINAGE AREA AO 2 ,' .: ;//: ` — T—/ J II ' rII . •1,15 8 2 PC478 w I- LU N J 'i r _ z � L 1 I ;I 8 DRAINAGE AREA TO#9(OFFSITE DET D) ILL / 1 1� _ i U 0 AREA=0.15AC � xf ,I). 6� Z W CN=96 j4 } __. .I $J / / I • Q Z Z o Lj Tc=5MIN I � I / / .II,: 1, 9 a Q1= 0.64CFs \ : 150J" />> MAINTENANCE /` — LA ;I i , o O Y coOC >, , _ COMPOUND; L� 15'e�.10'ECECTR/C EA:EMfNT 'TOkAGE�' I 1 'ARCEC 07B00-GtT-0O-DISCO O D Q10-1.21 CFS A �',. `� �' :",-76,,-, a !,4ht7 f\"_ /,ot 4, t -/ COMPOUND, l iB'B 1J79,PG:25 SHED �ISERVIC AUTHORNTYWQ Q C Q I , " J ,rYa' , d / I - 1 ,I P SERVICE AUTHORITY Z C.1W! / '� GB 1140,P& 2B7 CO (� ADEQUATE OUTFALL 2: TYrf XE• _ 1 Ecru of 46 WCl_ T AREA=0.18 AC e - �__ `_ I: DEDICATED 9-�a-zcr W 1': N oB �, r %� / / .I: 1; :U 168 SPOTNAP ROAD a m d CN=61 LIMITS OF ( f4 �x. v 'I' CD Tc=5 MIN DISTURBANCE 1 O �`�'�� �e♦e♦ems J (j c5 \v �,.0 r ,I, (nis PLAN)! ••' 9♦♦��♦♦♦♦♦♦ee♦ e�♦' 1J , Q Q1=0.08 CFS } Jee♦e♦♦♦ !+♦ � iy+eepAl��i®i� eol9e m a 1," q CSq �� ) s �.o:.e..s Q10=0.45CFS i ,, ./ ,i♦4►♦0♦♦♦♦♦eee'e�♦ air 1';' \ /0, ,, /'' '/ MAINTENgNC `' •� �Acraor�. i iee♦i"s J a'•DOoe�+ieieeeieO�e00ei•'ieiei�i'e -` '"� ,' c . BUILD E ,1 ° '•� i♦♦eee♦ee♦♦1♦♦ee♦♦e♦eeee♦♦ , .' L' , / L ING (tk ?A'^. A>4,^.•:' ►♦e♦9♦♦4e♦i1eeeee♦eee♦e♦' �-. Q ;5• '� � / g.h'l, �♦ii4eeeeietieeelieee0►eeeeeee♦♦•>47 ♦♦♦tee♦♦ I 4♦♦40♦e♦♦4Ni♦♦e♦♦eeee♦ „A cc . Y1►ee♦♦♦e♦J•F4•♦e♦♦♦eee♦ e \ % / mwoa,on�.Qr{�T�ie♦e♦e♦e •♦♦♦♦ ♦iy♦ ♦ :y :N �� f /I 1/24/19 e"f 4.4Vn"♦♦i♦♦♦ee♦♦�4t♦Jea *� q, 157' f/I 1 nCa [,fir' •ei♦♦eeie�' ' / REFEREtIC� E ;►,ieieeleeeieee0¢,►SeiO4i0•. " f, ';\ \ \ FACE OFF TO eastr c--,._ I :II • �T w� '° PARCEL P,O� do-•. GO✓ e��e♦♦�,�♦e♦e♦♦♦e♦♦♦♦eeeee♦ �,' ` \' : / /y/\ CUL;EAR+•r AND CURB DRAIN, ��. ,.'I •�WYAi. e PAN OPS=A'i;L.' ►4•e♦4♦ee♦♦e♦♦♦ `� \7 / UI,,TIMATELY FLOWS TO STRUCst1RE 1I6 '�'^'- �'; j ' ei♦eee♦♦♦eeee♦ \ J - 1. KEY PLAN (O.B 008, s, ;AA a.J.eeeee♦♦♦♦ee♦ \ sty` ` A - _ _ `+ ZONING:LA • F „230151 c ri'K' i,LJ*ee4♦:-.414♦e♦e♦e♦e♦i♦41/.• \� \� r. -1 UNGin/A E-a< r9 A 3 sl)ef►�e1�0'►�p�eeeeeeee4'ee�i' / �\ �.v\ g- :�l- • J4♦♦eee♦♦♦ ,: I. CALCULATION REFERENCE: .. ••e••♦♦t' \ " ���^^^''^ --��� gC`Sq �j� SURFACE RUNOFF.TO OUTING Vi♦♦OOOe♦♦�" ��� � 8��'° •"GE - /T STORM STRUCTU '#9UL71MA-ELY ♦♦J� '-' ` C ,�' / BUILDING - �.f ___ FLOWS TO E7QSTING STORM •.• \ \ - / I ucTURE z e'♦�a p �\O ? i t f. ' ♦`e� G5 ��,#/ f: ! r':E: •:✓ SCALE Q3G I;" v 7 „! QO 0 / / ,, • -i'' _ _ -'�/� y.S�� _ ` GRAPHIC SCALE ."...:,:i DRAINAGE AREA(ONSITE) �� / \ 'c'o �/ \ / \- �� \ I 1._�. AREA=0.09AC ///,,,��� '� y � f /1 v 4p • ♦� IIJ E \,k'2 v \V cY, - �• I PAhl,"Mf078A7-CAI-0br014C0 PARCEL 07BYXl 0V-/M-Olba' ._ / / , • sa BALlrvkOniRE L.L:c _ ,��l L'Fr ♦•J �1 OB J(A9 PC 098 roJ SOUTH PM1TOlF56. `y- \ E. ,�-. ♦ .''7 '"�• / :,. _ ORNE LAND TRUST �` // �` ��f `'- �' �J♦i►♦tei♦ei♦♦e♦+s. DRAINAGE AREA STAIRS ANNC 10i/4/ATCOCiMERCl1:' (G.P. !SB!PC 719) •.•I,.,•, Y- _ ____ •. e `�\ �/�, f y ap �'. •1:..♦Dee♦JJeeOJJ♦Je♦♦ ;A!✓D�USF SEk%PUBCLF' zoN/r✓c HGHWArCGMMEecu 9 j ;..{ h t7 " ►'o.�e♦e♦♦♦ (ONSITE) row ACPES oa,'' LAND USE COMMERC/AL D- _NAGE AREA(OFFSITE' / 4.1 rT'st�+h�e+OOLee♦♦♦♦ee AREA=0.14 AC I B TOTAL ACRES 1,38 �� 'DETAINED) ;' /' \ \\ �,.ay e"ire�J�♦�e�♦�ii♦4eeA` . • d,iee♦e♦♦♦♦♦ .✓,, '\. ARE Q15 AC,/ c C i y,; e'ie♦• o••♦e♦••♦a to . Q', /)/ yp� s • •�_. \ • \�'\ / / �rN � \\\ ,.igrt�+ +�♦♦, e.5,,1♦•A e♦ii - �A,L I 2 01/28/19 HCG COUNTY COMMENTS i ........ i ,bi♦1t' 4 ' `� _ •�- 1 11/12/18 DAB COUNTY COMMENTS /� /�'� \`� \ w ,, 1"P ,{, e -"l 'epP - No. DATE BY Description / 9�'� ,I .. / :S CAN / cap : �. �_ REYSIONS i ��B ' " I * AUY �/. 'l /'' � o: -• DRAWN BY MNM V ..} \ at % \'��\ - APPROVED DRM PARCEL 07B(X7-00-CAJ-015C5 �. �T' ("�("� ! 1" •NRGiN/A LAND TRUST / / Apo• •-L''',r�.R i.}: •.;::',. %__� - DRM / _ y-��, J .%' '� `.I CHECKED BY (OB 4509,PG .4IE / ' M4/[ ,�Q.' Y '1- �.:' , / i/,a ,\ :\ L� ® o - ZONING"H/CHWAY COMMERCIAL f0UN0/ , / 0. .,., DATE JANUARY 28,2019 F LAND USE'COMMERCIAL / �0" " %'� .k ,>nz .vc �'• - -" TOTAL ACRES 070 : 2A .- , , ;; /...,..: `, , r V,' \ TITLE 1,,9a _ t. PRE DEVELOPED / • , , -';. .-....._. L\/ _ 1}D1 PARCEL 07800-GYJ-00-OISAR,..._ I i ..- j /' .' :• .. / ,1 2•q\p\� ACBLMARLE COUNTY • CONDITIONS .1 ; i► \�% , - -_:' ;'/j/ :' ' `_425- OB 202 _ -_.. / w SERWC .T. • _ - � i /,PO 572) / �� ,- ;i`,s ;' i 1 LNG HIGHWAY COMMERCIAL _ -_ - _ __ 8 m' ILA-SJN Y A /L4'7V L -fAt12/ _ :� .: ;.� ,: : :' '`.• LAND USE RES ;,. �j� � PARCE b7BC0-00-Lifi-015G0 T TAL ACRES 1,7 � ����,'�' . .. ;1.. ' -_ :I./ ROSARRAQ,/RA"1G .__. _.Yvl -: wry.,.ANN R GURAN/1, TRUSTEES iPARS/18 PROJECT NO. 50075660 / PA(O 1. T '. ,:r \Ik' = ,'` (DB1846`PG: l60J OPS/BJ[AND 7RUS F ''N/Nr. W sHEET No. � J ' � � ZO , !✓lCfH AY, �, % (AND(/Sf.�'E/G£MGII-S/NGLE FAAC/LY �ii ZONING H/GHN:4Y IMER ERCUL i - _j70TAC ACRES'L02 : GANG USE COMMERCIAL :' • .`-. - C TOTAL ACRES 128 / - _ ._._-....-. Y : C6.0 12/..' \.,3-- ' I - I - I - WATER QUALITY COMPLIANCE SUMMARY ' 9 Dewberry' POS I•D VFLOPMHNI FOREST/OPEN SPACE(1%) a01 AC I PARCEZ 1 NoS LAKE BROOK oNvE ,•±i-♦- MANAGED TURF(45%) als AC CHOAIL MOTORCARrs Inc. �OIPAHY C PARCEL 07800-00-OO-015E0 I Dewberry EngineeSUTE zoo (DO 3677 PG 475) SLOW 1313 R/CNMONO, LC PARCEL 07800-0O-00-01500 GOBN AUBrr,vn zaaa ZONING.H,'GNWAY COMMERCIAL (ON 2809•PG: 749E JOHN 0.AND.ISNOE S L/NK505 6 t �1 ' EI CC EIII IMPERVIOUS COVER(54%) a30 AC ZONING HIGHWAY C[M/NfRCIAL (OR 10?5,PG'239/ LAND USE ACRES 1.RCIAL (AND USE COMMERCIAL I ZCN//vY`NM,NWAY COMMERCIL TOTAL 1.77 I TOTAL AREA a57 AC i , TOTE ACRES 089 ) �D� COMMERCIALSE 127 REMOVAL REQUIREMENT 0.35 LBP R .\ / t "-„-- ---- -- 'SEE SHEET C6 2 FOR VRRM CALCULATIONS AND 5'RETAIN/NC WALL _� • __ 57Q/7" _KB35ff' E �� VERIFICATION OF NUTRIENT CREDT PURCHASE THE VRRM ENCROACHMENT EASEMENT- -- 7^, ram" - "-T= - - - Q - -- IRE'/ Q Z DE A080 PG. 152 -- ..__..._ _-r- - CALCULATIONS INCLUDE THE STAIRWAY ACCESS PROJECT I I - I / L- "--� �� I O (ACSA PROJECT NO.2017-07),DATED 07/03/18. / __ ,_ _ / - .� Q I! I ./ , _ l ` ( �` ,\' 1 - PARCEL 07800-00-Gb-01400 �""- D Z E 2 "' j--� -— / / I i , . : ;� JOHN 0.AND TAN/CE S.UN4DO �'-- Q Q ADEQUATE OUTFALL 1: 1 - ( I 6 ! 'I (D8 1025•PC 2292 W CI- (/) 5 - ' l"' s7s So / / "I : COMMERCIAL U X Z CO _ s II 1 : ; / I! , TOTAL ACRES 158 cD — SHEET C6.2 n ♦ F D.B 4oea x 125 LAND USE.caMME — — W li r• f / I 1 DRAINAGE AREA TO#25 II / : I I" �� 75'SPRrvT,CENEL EASEMENTw W X ,- J > AREA=0.34 AC B use Pc ne \ . — J ;I: : D W Z (� i i W H 'o DRAINAGE AREA TO#30 % (I ( l� 7 / :L 'A• / 0 O O W DRAINAGE AREA AO 2I;AREA=0.05 AC " i / / ! Cl)(s7 C3 ` AREA= 08 AC > ^" { O Z z m DRAINAGE AREA TO DETENTION(#25&#30 \ A l p?�!/� ' MAINTENANCE/NTENANCEi /`` T ;I ; 1 00270 D AREA=0.39 AC 4 7 r n M 15'etr50•ELECTRIC EASEMENTOkAGE ,,I, , I i `—PARCEL 07800-00-00-015C0 I- (r O CC 1. I -- OVA,AI sOft RQNt t)_ , "/ COMPOUND,'L l irli 1379•PG 25 -.rHED ALBEMARLE COUNTY J CN=96 AO 2 �� (sR 48 ,. "- / 1 SERIKEALITHOR Y S f jl U N Q a Tc=5MIN C vA hp",' �, .. 124 PG 7 U d aA ,, awe 5E I. • -- -. ' \,d - (' '/ - rl 7 `_`.:.. ,�.,. G_ •)I AREL£T72 OF 245 CD DRAINAGE AREA(STAIRS ONSITE) y _ CD '1• • 1�' DErn/Ar0 9 24 2014 W 0 N .i DA - 'R' � C. ^' r I ;I, O75R SPOTNAP RCM W I AREA=0.14 AC t ;) CO CN=74 UNITS OF c ss..:Oie�aa .� \'. • pSTURBANCE( -.y '-S- •'U 9 1'i,�iy,6,'d�i�♦�♦•♦I�' i♦$,$, S ♦ - .T / - O ,,� Ie / // ' it Q Tc=5 MIN ►♦44♦a•• ♦►i, y a►• < ` (rresPurl) ♦•ei'Oi•• ♦+. ,,,se„. '�` -- -'- '.'''� ''a"`A �>� - ACSA II ' �� o�.o.•,► +w94Si/♦'AS. •. ::.�•!AA r.• / - \ti �.i \./y / MgI(VT-E ;1 0 ' SEAL 04 :*4 • •♦•i"4lGtt,, -fix^� o , V ,'' �` NANO lifl- I •,, _ .�e•At.Ta o A 45,41. ADEQUATE OUTFALL 2: i4♦i4•'�♦♦4•♦4i♦i+' � qg /i 4 - V Il DI N(� 11I `i 1" ice•♦••♦♦, ♦ / • AREA=0.08 AC '0♦A•••9�♦*' Al �d! ;I �c w o3lm ♦♦•ice• 1.. \ .. \ '� / �a CN=66 " • .**6♦-• * � , J \X Viz•` � u 15� I. _ ,'�I� 1 ` oE'r i 24114G, IP Tc=5 MIN *;$„•! ;v / CALCULATION REFERENCE ��S4( tt t ss ►'i/i Q1=0.06 CFS ♦••••♦ • \ SURFACE RUNOFF TO EXISTING CULVERT J 1 I ����!Ne Q1 =0.27 CFS RC! ♦••♦♦•♦6�1•' . • R , \ AND CURB DRAIN,WITH SOME RUNOFF �mJJJ i KEY PUN \ �r �•♦••♦ \ \ `7'I FROM STEPS E BUILDING. TO YARD DRAIN 7• 15 Q,r •♦♦♦�i4 '''\ \ \ NEAR STORAGE BUILDING.ULTIMATELY IT- •/: ZONLND NELANZ ♦71�, .//,'' / C • A , ��\ k`' ALL FLOWS TO STRUCTURE p6 -'- , ,• /" s• � / ; • �•♦ •�•ii • 7 — ACSA STOR / ,•i4'�i0 44•�w — _ �/ < ' �4,��S ;,!. r BUILDING GE— 1. :i • G0P�p.\ /V,J'j'/ .,~ ,d:♦i`. ` '(�... 'z.::'v,�e `" '!"• ..•I!" ...1--- SCALE DRAINAGE AREA(ONSITE DETAINED) c P �(\C9 <y! s� � I AREA=0.24 AC k�\\�O ♦i+•, "o•'y ..•r,.,...... -i� - } ARz C�i , T / V p� 4gS. S GRAPHIC SCALE / / ?`� A"`� �// 1 i �A4d♦6• �ii ERG€L'078Q7 Gb O0 014G0,• ':. PARCEL 07800-OO-Gb-01RN 4 �, „ ;'' V A \ \ -� ...p1e r, +♦•0•®•O♦ .y♦ _ • 6____ gu BREALTY VENTURE,U.C.' 03 SOUTH00-PANTORs RAINAGE AREA(OFFSITE \, fir;- `._ / \' \ Y"4"'sts••••44P, 4•4 d.e T4De Pc ago �V.. ``,- U 9 " r, O i♦♦♦• ♦ . PONlNG,FL/CH'WAY COMMERC41(•, DRIVE LAND MUST \ , ' ' DETAINED _- tr ii•••♦ ♦. (08 /584,PG 2/9) .'� ;r ) \ IT AOCE -4i.44.•i♦•.10.♦.p 40,0 a '�- ,'' L47/0.8•SE SEM/-PI/&ID' A i AA-0.15�_C y t_ %►•♦♦•♦••+ i �' �'• ramiACRES 0.4z"' ZONING.H/CHWAY COMMERCIAL `,I.I / �, V Z V� :v,,;,w. ?:y'7,." •♦•i i•+► l TM . • LAND USE COMMERCIAL �� J :'IL, C A :. ,••O♦••♦.qp♦•N.� V i ,k2' B TOTAL ACRES 1,18 i �" ''. / '� 1 • • - / - \ s • \ f i �% /' \\ f \ A C ♦•� • �t �•/' +�♦�• DRAINAGE AREA STAIRS(ONSIX ) 2 01/28/19 HCG COUNTY COMMENTS \ %p l i / '' AREA=0.14 AC • _ 1 11/12/18 DAB COUNTY COMMENTS rs / // : \lif: .. CN=74 t _ No. DATE BV Description j, `9— \6 ,` I �',,,YYY :S�•' a T 5 1 /• - - • REUSIONS / �\ �' _ � � \ TT e c= MIN �.. �- 1�- , 2 `SEE ADEQUATE OUiF 1 MNM p v�, �` �0 �/ % /'- CALCULATIONS ON y-4. DRAWN BY PARCEL 07800-00-G1Y-0751..5 N'- i7% �'`� ( ;n,. s ,. ,yam'/y.. _ ��►a. C '`. APPROVED BY ORM NRGIN/A LAND TRUST / - V ! -:\' \ — DRM �, y/ 400 r ?� j ''7' I ��`. CHECKED BY (OB 4509,PO 599) WVL V. ,� - - - S - f' / T Z - ZONING'H/GhMYAY COMMERCIL FG D� A i J '.'�,'',.!� '_ _ DATE JANUARY 28,2019 LAND USE CYNIMfRCL4L 0"EE / .!'� 4 _ i• H.' TOTAL ACRES'070 - ��,1A1 ' '� i q�- i \)C { FGLMD � .'� TTLE - "; ,\� �� r -' _ POST—DEVELOPED /. _ /'/ 13°1A .• / \ �dRe4 PARCEL N� a .. . ' i CONDITIONS ' .1 LBENAR COU 6 ?- !'� :' ' 4 r,�_ SES/ICE A/IC/ICR17Y 7 i P a / `, `• - • :" /% ZONING:/4/GNWAY COMMERCIAL - • A / ! � :o_/ 1 \,_='� ;; (ANO V;E P.f.S/DfNILAL-5/NGEE'{A8?/ _ i', I ',1 ' -= PAhfEL:'078LY1 00- -015G0 �'/`� TOTAL ACRES I � ' . / , J - _ PARCEL 07800-00-L17-015F0 . \ i ,-'-� :' ,:'• ANN R.DUR N0 [RI/STETS / - t - - PROJECT NO. 50075660 / / PANrOPS/lea LAND MUTT ,•,r'.`.\' ' l I ' '; (DB lee PG 1F0) ._. ... " ZONING.-H/B WAY COMNERC/A( 1 • 1 • .. - .. SHEET NO.(08 1258 PG 21/ \ LAND USf'FE/ -S/AYLE FAA/LY I ----- - 4. - ...-. _ /TOTAL ACRES L02 / - C6. 1/ ZONING-HIGHWAY CAVMERCAL LAND USE COMERC[C TOTAL ACRES 128 • , � � ' ...'Y � - .. . 1 _ • 1 _ STORMWATER SUMMARY - I I _ 9 Dewberry* NUTRIENT CREDIT PURCHASE AFFIDAVIT FLOOD PROTECTION FOR OUTFALL 1 IS MET BECAUSE THE PROPOSED 10-YEAR DISCHARGE AT PROJECT DESCRIPTION OUTFALL 1(STRM 6)IS LESS THAN THE PRE DEVELOPMENT DISCHARGE.THE TABLE BELOW Exhibit A THE C6.4 C6.3- FOR ROUTINGS.SEE SHEET FLOWS. -- THIS PROJECT IS LOCATED AT THE ALBERMARLE COUNTY SERVICE AUTHORITY OPERATIONS CENTER AT THE SUMMARIZES THE 10-YEARDeWberry Engineers Inc. INTERSECTION OF SPOTNAP ROAD AND PEOPLE PLACE BEHIND THE BMW OF CHARLOTTESVILLE DEALERSHIP CBAY.VA LL(7-EASTVIEW FARM ems LAKE BROOK[AWE KITE POP ROUTE 250.THE PROJECT INCLUDED IN THIS PLAN SET CONSISTS OF THE EXPANSION OF AN EXISTING AFFIDAVIT OF PHOSPHORUS CREDIT SALE PRE-DEVELOPMENT POST-DEVELOPMENT GLEN ALLEN.VA 23C80 804.29.7957 IPVIONE) PARKING AREA AND WILL DISTURB APPROXIMATELY 0.43 ACRES.THIS PROJECT ALSO TREATS WATER QUAUTY • (CFS) (CFS) 004,Am.t FAX) E AND QUANTITY FOR THE ACSA STAIRWAY ACCESS PROJECT,ACSA PROJECT NO:2017-07,DATED 07/03/2018. CRAY-VA LLC.a Virginia limited liability company(the"Corn lurnel hereby - • THE STAIRWAY ACCESS PROJECT DISTURBS 0.14 AC.THE TOTAL ADDITIONAL IMPERVIOUS BETWEEN THESE 2 ceres the following, 10-YEAR 2.47 - 2.29 ›- ...--. I- C PROJECTS IS 0.18 AC.THE SOILS WITHIN THE PROJECT AREA ARE B SOILS.THE PROJECT IS LOCATED IN THE I.Pursuant to that cermin Purchase end Oak Agreement dated Jammer 15,2018(the (1) RIVANNA RIVER-MEADOW CREEK HUC 6. -AgreemenC),between the Company las Seller)and Alhemarie County Service Authority CC- E (-Purchaser).thc Company,for the benefit of thc Purchaser.agreed ro sell IL45 pounds of 0 Z -0 nonpoint sour,pho4phorus Credits co Purchaser and retire the assaciated ratio of nonpoint 1 0 STORMWATER MANAGEMENT-WATER QUALITY source nitrogen Credits at the credit generating facility in the amount of LE notmds of nitrogen OUTFALL 2 C Credits: F- 0 a) WATER QUALITY WAS CALCULATED USING THE REDEVELOPMENT VIRGINIA RUNOFF REDUCTION METHOD.THE D z Z E - VRRM CALCULATIONS ARE BELOW.THE REQUIRED PHOSPHOROUS REMOVAL FOR BOTH THE PARKING LOT 2.The Company and the Purchaser,as of the date hereof,have closed the transaction CHANNEL PROTECTION IS MET FOR OUTFALL 2 BECAUSE THE DRAINAGE AREA TO THE EXISTING ,(C 0 < &- contemplated by the Agreement and the Company has sold to Purchaser the hosphorimCredtts, DROP INLET DECREASES IN PROPOSED CONDITIONS.THE PROPOSED 1 YEAR FLOW IS LESS EXPANSION AND STAIRWAY ACCESS IS 0.35 LB/YEAR AND IS MET THROUGH THE PURCHASE OF NUTRIENT THAN ALLOWABLE 1 Yp EAR DISCHARGE.THE ENERGY BALANCE CALCULATIONS ARE BELOW.SEE Lu ra- cn c 0 CREDITS.THE AFFIDAVIT OF THE PHOSPHORUS CREDIT SALE IS INCLUDED ON THIS SHEET. WITNESS the ing signature:follow 0 X Z fti CC 1 _ SHEET C6.4 FOR THE DISCHARGE COMPUTATIONS.THE TABLE BELOW SUMMARIZES THE 1 YEAR - - uj < EL- 5 z CBAY-VA LLC. > ,-,-. 16_ - ki REDEVELOPMENT VRRM SPREADSHEET a Virginia limited liability compm DISCHARGES.y CC "" - Cl.) W ---.:[IIIItiIIiJ wan = • C/).,.__CILitiaoe)M, PRE-DEVELOPMENT ALLOWABLE POST-DEVELOPMENT Lli I- W -Authorized Signatory SITE(CFS) DISCHARGE(CFS) (CFS) .,_ Z F- L... 5 8 • . --- w 0 0 0 0 Lyrae, February 6,2018 H" tia "....."*"."...",1=1 to.• ' 1-YEAR 0.08 0.11 0.06 0 -J .0 LLI cc-1 - z .• .............___ , •• Sworn to and subscribed before ore this_6 day of Fatatral 2018,by w , Claire __ Wolansia ,Authorized Signatory,on behalf of CBAY-VA LLC, 0 Z Z - 0 5 .....-___.....,. ..,. _ . a Virginia limited liability company. CD 0 2 'Co , Sta D . • , My commission expires:genoangtte of VihrN City/Cronyo of Richmond ACSA ParkloA I. ENERGY BALANCE-OUTFALL 2 u j I- CC D CC 0--.-- _. .!1. . . Bushell,Wry Yost dammed.ram, cur...,haw.. t]....er < < c T , CrtAnnArnee•AP el Mg.. Ihntberry CC CC a- co 0.-........--...--..• _ . , Conorn."V...Tr 501PAI .er,Qtx;:rie X-jd- %we&sow.,Engweer, < 1-1] _ -- 1--- • • 1.19 comma,WO 41)2021 •. - • •--.-- .• r.nsii.s align Fon,.Condi.% hasi Ovreloped Cairn U OM 0 C\I Project Darn....jirlieL thengiam rarer Diaissam Mbelaarls.VA 0- Ving1.11.A•i,t 0 Weiextr1(14= ,0 ik clealcol CX• 60 Ca,. ...,.,. Pennon:Ajjkliwkcjegyjjokailkth 0 •‘"."."' "' me,. „J- . •. P...MP...‘.....Llamisd,_'...•_•,--;--•---- ---- • 1v1s6v0ait.oA.a samea l (/) L. aaaaNnt Yana Novato.sea Ilan AM* 9 MAMA ..94..S.J.... •-,E'- eab.70.,aLTLI N.*.. . - IIIIIIIIIIIIIMM- MEM s 7 I it /19 ...., , N, ' ,-, 14\ , MIIMIIMIIII ...,..-, , I. ,_ 49. ,c.r._...-.- -.,; IMMINIMCMIIINIMIIII . low.vas,.liv to VOW 11.9 0 e 1 r.tus 1,6 k`onal V Mane IN, t1 OW tor Ilmel V.* MIIIIIIIINMIIIIMI OM WOO w. (fri‘e'Lig C't MIIMMINNIMINII . • 11.11.111.1111.1MI . r....... - : . 1,1•11,arrelal IN* Pr••••tlemmeo WIND IINIMIIIIIIIIIIIMUIMMINail STORMWATER MANAGEMENT-WATER QUANTITY 06.6ara. 0.011,-1.• Olsimme '' . Le No MSS . -. ., E ihoollt.”1 .sAt'af llaM .... s,.. --a-i }--..:2:--1---.:,'-i 1 THIS PROJECT WAS ANALYZED FOR THE 1 YEAR AND 10 YEAR STORM EVENTS IN ORDER TO BE IN COMPLIANCE WITH CHANNEL AND FLOOD PROTECTION.WATER QUANTITY IS MET FOR THE C" PROJECT BECAUSE OF UNDERGROUND DETENTION PIPES LOCATED UNDER THE PROPOSED An.A Ca.AA..C.v.wog fiva,......alpt.41.1.-kW, ,1410. STET.Cakvt.0.8.......i.ex awry,holmor...awn 0*sm.4........tenor to Aer...ono. 51.1 4'4' N.2104 A k '.o.00 ..••••.* e • • ,, -- -_, ,-..,...-; PARKING LOT EXPANSION.THERE ARE TWO OUTFALLS FOR THIS PROJECT,OUTFALL 1 IS AN EXISTING STORMSEWER SYSTEM DOWNSTREAM OF THE UNDERGROUND DETENTION SYSTEM FA,"race Eque...1)„...,.11,0,„......a PV.„,•,,,,RV,..,..., le.wm•u•Faux 0, . KEY PLAN C -.7:-.:-. - m -.=-4---...j m AND OUTFALL 2 IS AN EXISTING DROP INLET ON THE NORTHWEST SIDE OF THE PROJECT AREA. V......,1,,,,,a...sae..u..issw meaa sm.iisessosm iss..,..1,4,44,1Volowel,1111,11oengnuat Vamp,:•0113ite VuMII Q...... OUTFALL 1: STEP S Colo.l.uol`..1.1n6o•NA...Pe.a•1.....torpr. MOM 1 • . 1 ' 0,,...Tow!Fortq 1,4 D...thorge.1,cnt Volion:•IV.VOlualeY•r,nen.o...voionve•(*.a VoLum p Q... 110 cA ........... .. 1.1 CHANNEL PROTECTION IS MET THROUGH THE ANALYSIS OF ENERGY BAIANCE.CALCULATIONS ARE BELOW.SEE SHEET C6.3 FOR THE ROUTINGS.THE PROPOSED 1-YEAR DISCHARGE IS EQUAL Al.1•.••.no.alsle 0,00 re.01.mar, z r,....,. .. TO THE ALLOWABLE DISCHARGE.THE TABLE BELOW SUMMARIZES THE 1-YEAR FLOWS. -' .. . .,. . . Q.**tin•I 111-5, . an. SCALE ............-- PRE-DEVELOPMENT PRE-DEVELOPMENT ALLOWABLE POST-DEVELOPMENT ' OFFSITE DETAINED, .. SITE(CFS) DISCHARGE(CFS) (CFS) FLOOD PROTECTION IS MET BECAUSE THE PROPOSED 10-YEAR DISCHARGE AT IIII=I=IMI 1131 . (CFS) OUTFALL 2 IS LESS THAN THE PRE DEVELOPMENT DISCHARGE.THE TABLE BELOW 1-YEAR 0.44 0.64 0.77 0.77 SUMMARIZES THE 10-YEAR FLOWS.SEE SHEET C6.4 FOR THE DISCHARGE , . . • linnaile.01•4110...M.W.1.0.0.1 COMPUTATIONS. I----I - I I.::_...---.,-„_:,zi .. .......,.. . ,.. .. . ......' ENERGY BALANCE-OUTFALL 1 CONSTRUCTION RECORD DRAWINGS CHECKLIST AAN A Parking Lot ‘"." ' r..., me. PRE-DEVELOPMENT POST-DEVELOPMENT ' .1 Armartc Comfy (CFS) (CFS) ----- - • pew herr, COUNTY OF ALBEMARLE nate,',sources Engineering • ' .1.41;-I Depdetnlent of Community Develiminem 10-YEAR 0.45 0.27 B Pre Developed eat* Per..Conellelom P.Ilerele..(...• Construction Record Drawings(As-built)for VSMP ...,....1^1. .1, 11,10641,• i I.n 1,101pal.I'M• FAO 11 5•••Ise,• The following is a list of information required on construction record drawings Arni.(ecl...for P 11.. ,Or Pao• ow '...,• ,-P3 2 01/28/19 HCG COUNTY COMMENTS stormwatcr facilities(reference Water Protection Ordinance 17-422). It is preferable that the 5508 11..,-r•••:tl,ault..liacl,.a..11...Tlic vie pc,,,,,,,•.1,1varpg,oue•Irc,..,...and,eln-Aopx.... 1 11/12/18.DAB COUNTY COMMENTS construction record draining be prepared by someone other than the designer. Please do not ru Ot••••leil Vane !me C.A.....reer F.Ott•Ingmba UsesN DATE BY Dri provide design drawings as ronsinicrion record drawings. : o. Description .• 0, la ,,, la 0. Rat SIONS A.A signed and dated professional seal of the preparing engineer or surveyor. Q... I A on 0.ine o A. QUO A. B The name and arklress of the lien and individual preparing the drawings on the hilt sheet. 1,4.Valmr iltV•JAM 11 IlmmoT Vale 19, n 065•:.1 Puw49,1•••flt, ARS 1.,1 IANM C.The constructed location of all items associated with each facility.and the inspection records to verify T.....v.......p... 1.1. DRAWN BY1.1•Fment proper dimension,.materials and installation.The items include,but are not reined to the following, O... .1.:A ..e.... NA.M1 APPROVED BY DRM , ...,.,, I. Inspection Records and photographs for pipe trenches and bedding.including underdrains. ummareala ,,, ORM _ Cadoilex E. la 2. Video Pipe Inspection for any pipes which are not accessible or mewable. A.I.111.7%rm....Pewit IL:41,u,....1 IOW. - CHECKED BY V% 3, Updated Location with goo-coordinates of all facilities JANUARY 28, 2019 4. Verified Drainage Area maps for the draiitagx area treated,and lie drainage It the facilities. STOP..c Acele.0.......•AA w mod...,a.m..-or'ib vH,w...r"'"'".6"7"."''''''5. - DATE 5. Current physical and topographic survey for all earthen structures.Ponds should include a survey r,,,0116.10.‘Loam..0„,...,s 1 EAQ,,............v.......,,Iv...... Of the pond bottom,Surveys should verify pond volumes are per design.Coneetions may he required TITLE for alterations front the design. h STORMWATER 0...I,.nedeonvo. re voem....nornare Far..ne..........,WoreAleveln,e01Volturr•OffIrNe s'fian..1 Plants,lunation Will type. U...... o 1 d, 7. Plans and profiles for all culverts.Pipe&Risers,Weirs and Drainage StruCtures-Display the NARRATIVE installed type of drainage structures.culvert/pipe site,weirs.materials,inlets or end ireanneniist STIP S,Calcda.51a sin•nri',Yew.,Pea.I....krye. inlet nod outlet protection.alignment and invert elevations compared to design. um....na,0..00-O. U...U..).......Arr...... AND WATER 8. Computations:For significant deviations from design,provide sealed computations verifying that o„,....Tow...P.A...•.F..Vol.•OAF.Vohs:nroor Unel,teo.Volume•or.Volum, the as-built einslition is equivalent or better than design '''' A 9. Ditch limps.Display the constructed location of all ditch Imes and channels.including typical .........y...a.„.„. . QUALITY CALCS sections and lining ...OA s. . 0.1,6 . OR*Alm Pni 16.1s., .,..,c, . I 0.Easements-Show all platted easements with dead hood.references labeled.Fat:11)6es and drainage sholmene AD.. num be within planed easements.Provide copies of recorded dom cuents. PROJECT NO. 50075660 0,,,, II.Guardrail,fences or other safely provisions'Display Me constructed location of all sleety SHEET NO. provisions:fence.,guardrail including the typo,length and applied end Treatments.compared to "VW k LAram.1.),..,,,,,•Ins imc.Stumm Allkmal.41,11.e...., design. At-.....,,,e.sainnacin, On.k k:lig ille Ile nIeemir I?.%aerial layers hioriber media,stone layers.sand layers,keyways and cores must be verified of,to ma aid terial types a depths Include inspection reports.hoeing or lest pit reports and materials certifications.Hrofilter media MUST be an approved state mix. C 6•2 ,3. Access mads show location of access roads.surface IrcanuenI,drainage.arc.as applicahle. 14.Compaction reports are required to verify fill corramerion in darns. 12.Manufacturers certifkritions for proprietary EIMP's cerufying proper installation and functioning. I _ t _ I . I - I _ ADEQUATE OUTFACE 1 DETENTION PIPES-STAGE-STORAGE/STAGE-DISCHARGE CON'T FORESTED CONDITIONS PROPOSED CONDITIONS CON'T a Dewberry' Stage-Discharge for Pond 1P:Storage HYDROCAD DIAGRAM Summary toy Subcatchment 69:Forested Summary for Reach 4R:Pro AO 1(STRM 6) Elevation Primary Donation Primary Elevation Primary Elevation Primary (1ra1) (cis) pee11 (cis) (feetl (ds1 pearl (cis), Runoff = 0.06 do @ 12.01 hrs.Volume= 0.006 af,Depth>020' 1521 Hint InletiOutlet conditions not evaluated 4S 5S 6S 3725 000 373.83 0.40 37491 0.59 375.99 1.91 2S 3S 372.77 0.00 373.85 0.41 374.60 0.60 376.01 1.% Runoff b SCS method,UH.SCS,Weighted-CN,Tme 0.530 ac,79.25%Impervious.Inflow Depth> 2.14- for 1 YEAR event Dewberry Engineers Inc. Y 5 Span.0.00-24.00 has,oft.0.01 face Inflow Area= \\ ��"/// 372.81 0.01 373.89 0.41 374.97 0.60 376.03 2.00 L200 BROOK CAVE e=awq 08 O.Is"ad Forested 372.13 0.01 373.91 0.42 374.97 0.601 376.07 2.15 Type II 24N 1 YEAR Rainfall=3.03' Outflow - 0.77 cis @ 11.99 hrs.Volume- 0.095 at SLUE ALL " o•wm�o,t eve CIA a.noa:=F saP Ann Outflow 0.77 Gs t1.99 rvs.volume- f 772.83 0.02 373.91 0.42 374.99 0.61 376.07 210 @ 0.095 a Arlen=0%.Lag-0.1 min GLEN AlLPA,VA 230e0 LJ t_ Area806.2967957(PHONE) 372.85 0.02 373.93 0.42 35.01 0.81 376.09 2.15 lacy CN Description a canna,(FM i 372.87 0.03 37 95 0.43 375.00 0 61 376.11 2.20 • 0.38 dl 0 55 Pro area as forested Routing by Dyn-Stor-Ind method.Time Span-0 00-24 00 has =0 01 hrs E 17R 1I 1 P i 37299 0.04 373.97 0.43 375.05 0.61 376.13 2.25 0.380 100 00%Pervious Area Max Vebdty.11.59 fps,Min.Travel Time.0.1 min -- 37281 0.06 373.99 0.44 375.07 0.62 376.15 2.30 Aug.Velocity=4.63 fps.Aug.Travel Tune.02 min } Ex AO t(STRM sl sw..go 372.95 0.06 374.03 0.44 375.11 0.62 376.19 240 Tc Length Slope Velocity Capacity Description I- 37297 0.10 374.05 0.45 375.13 0.63 378.21 246 (min) (feet) (loft) (ftlsec) Ads) Peak Storage=4 tot @ 11.99 hrs (I) 4R 372.99 0.11 374.07 0.45 35 E .15 0.63 376.23 257 5.0 Meet Entry, Average Depth al Peak Storage.0.11' CC 373.01 0.13 374.09 0.4E 375.17 0.63 37625 269 Bank-Full Depth=2.00'Flow Area-3 1st.Capacity=133 64 do Q Z 373.03 0.14 374.11 0.46 375.19 0.63 37627 2.83 C C Pro AO STRM 61 373.05 0.15 374.13 0.46 37521 0.64 376.29 2.98 24.0'Round Pipe = O 373.07 0.17 374.15 0.47 375.23 0.65 376.31 3.15 PROPOSED CONDITIONS nao013 I- u) a) Q DETENTION PIPES-STAGE-STORAGE/STAGE-DISCHARGE 37711111 0.18 374.17 7e 19 0.47 3775527 0.68 3 6.35 33.s51 Length-32 vert 36860�a 8eb le90 vert.349,58' z 0 < Z J7313 0,19 37421 0.48 37529 0.69 37637 3T0 Summary for S7lbcatchment 2S:Detention Pipe DA Q < 0 < Pond 1P:Storage 373.15 0.21 37423 0.48 35.31 0.71 376.39 3.91 w C- (/) C 0 91.e4-01r41Nrga 373.17 0.21 37425 0.49 375.33 0.73 376.41 4.12 Runoff 1.67 cfs @ 1196 hrs,Volume- 0.084 at Depth>2.58' X - 373.19 022 374.27 0.49 35.35 0.75 376.43 4.34 U Z _� 5 373.21 0.23 374.29 0.49 375.37 0.77 376.45 4.57 Runoff by SCS TR-20 method,UH-SCS,WeighixFCN,Time W - � 373.23 0.24 374.31 0.50 375.39 0.80 378.47 4.81 Span.0.00-24.00 hrs,tlt=0.01 hrs > Q (7 373.25 0.24 374.33 0.50 375.41 0.82 376.49 5.040 Type II 24-hr I YEAR RaiMa11.3.03" D_ W 373.27 025 374.35 0.50 375.43 0.85 376.51 524 W X Area lac) CN Description W '. J ray 373.29 0.28 374.37 0.51 35.45 0.88 376.53 5.41 I- W (/) -U Z 373.31 026 374.39 0.51 375.47 0.91 376.55 5.58 0.020 61 TURF-SOIL B Reach 4R:Pro AO 1(STRM 6) } Z 0_ 5 O 373.33 027 374.41 0.51 - 35.49 0.93 376.57 5.74 0.370 98 IMPERVIOUS 37335 0.28 374.43 0.52 375.51 0.96 376.59 5.89 0.390 96Weghted Average IN•M• .8R W 0 [1 Cl) 37337 0.28 374.45 0.52 375.53 0.99 376.61 600 .... ux 373,39 0.29 374.47 0.52 35.55 1.03 376.63 6.17 0.020 5 13%Pervious Area _ Z (� J C (y) 5 1n 35.41 0.30 374.49 0.53 375.57 7.0E 376.65 6.30 0.370 94.87%Impervious Area 37043 0.30 374.51 0.53 375.59 1.09 376.67 6.43 °°4 '17 ds�1 Inflow Area=0.530 aC '. Z Z C 0 w ,s. 373.46 0.31 374.53 0.53 375.61 1.13 376.69 6.56 Tc Length Slope Velocity Capacity Description 075 _ 373.47 0.31 374.55 0.54 35.63 1.16 376.71 668 (min) (feet) (rvhl (fVsec) Ads) 07 Avg.Flow Depth=0.11' 0 O J 374 373.49 0.32 374.57 0.54 375.65 120 376.73 6.80 5.0 Direct Entry, 0.45 Max Ve1=11.59 fps '. Y CC D 373.51 373.53 0.32 0.33 374.59 374.61 0.54 0.55 375.67 35.69 1.27 376.77 92 70401 24.0" W ~ CC CD Q 373.55 0.33 374.63 0.55 375.71 1.31 35.A 7.15 Summery for III 3S:Staircase-Site Area o ss J < Q 373.57 0.34 374.65 0.55 375.73 1.35 35.81 7.2E os __... ... Round Pipe '" O Runoff = 0.24d5 11.97hrs.Volume= 0.011 al,Depth>0.93" -a41 - < CC co U an 073.59 0.34 374.67 0.58 375.75 1.39 376.0T 7.37@ DeP _ _ n_0.013 Q W T- 373,61 0.35 374.69 0.56 375.77 1.43 376.85 7.47 i 04 L.54.5' cc Cl- CD° , • 1 e 373.63 0.35 374.71 0.56 375.79 1.47 376.87 7.58 Runoff by SCS TR-20 method.UH=SCS.W eigMed-CN.Time Span=0 00-24 00 hrs.oft=0.01 hrs 045 ...pi ue� 373.65 0.36 374.73 0.57 35.81 1.51 376.t1S 7.68 Type II 24-M 1 YEAR Raidaii=3.03" °a S=0.3490 Y' W 373.67 0.36 374.75 0.57 375.83 1.55 376.91 7.78 373.69 0.37 374.77 0.57 375.85 1.59 376.93 768 Area(act CN Description 02 CO• - ' Capacityet 33.64 cfs 0 Pond 1P:Storage 37371 0.37 374.79 0.58 375.87 1.64 376.96 7.98 • O.G90 61 Turf-Sail B °is _ I a..>awa 373.73 0.38 374.81 0.56 375.89 1.68 376_97 507 Q U) sfa 9•' g• 373.5 0.38 374.83 0.58 375.91 1.72 • 0.050 98 Impervious al 373,77 0.39 374.8E 0.58 375.93 1.77 0.140 74 Weighted Average cos eeeoaree 1-ee..t 373.79 0.39 374.87 0.59 35.95 1.81 0.090 6429%PerviousArea "[AL 373.81 0.40 374.89 059 35.97 1.86 0 i 2 0 4 s 0 r r a n 12 14 a 15 '6 •r •.5 1 20 2' 00 2a 24 a^�t•AbTtl Op murk 0.050 35.71?r.tmpervkxtt Area i0 n..n�eaal - 4. !1 �y4D1 376 Tc Length Slope Velocity Capacity Description e.,i / i4 (min) (feet) InnO IfUsec) Ids) '3 1wNAe: { 1 YEAR STORM CALCULATIONS 5.0 Direct Entry, 10 YEAR STORM CALCULATIONS LE.rsoa 721 t il • »s EXISTING CONDITIONS Summary tP:Storage EXISTING CONDITIONS *oa 1i2ai19 r ft jj Summary for Subcatchment 4S:Ex Onsite Inflow Area- 0.390 a0.54.87%Impervious,Inflow Depth> 2.58' for 1 YEAR event *�5j a.�^r° Inflow = 1.67 cis @ 11.96 hrs,Volume- 0.084 al Summary for Subcatchment 4S:Ex Onsile % `•••a•ae Runoff = 044 cis @ 11.97 hrs,Volume. 0.020 af.Depth>1.03' Outflow = 0.57 cis @ 12.06 Ms.Volume. 0.084 at.AOen=66%,Lag=6.4 min 374 - - Primary = 0.57 cis @ 12.06 hrs.Volume- 0 084 of Runoff = 1.27 cis @ 11.96 hrs Volume= 0 057 a1,Depth>2.98' KEY PLAN Runoff by SCS TR-20 method,UH.SCS.Weighted-ON.Erne Span.0.00-24.00 hrs.oft=0.01 hrs C Type I124-hr 1 YEAR Rainfau=3.03' Routing by Dye-Ste-Ind method,Time Span.0.00-24.00 hrs,cll.0.01 hrs Runoff by SCS TR-20 method,UH=SCS.Weighted-CN,Time Span=0.00-24.00 Ms,dt=0.01 hrs Peak Flee=374 74'@ 12.06 hrs Surf.Area=756 sf Storage=826 cf Type II 24-fe 10 YEAR Rainfall=5-54' to Area lac) CN Description • 0,090 61 Turf-B Soils Plug-Flow detention time=7.8 min calculated for 0.084 e1(100%of inflow) Area(ac) CN Description 0 200 CO 500 no ran rm0 1400 1.600 900 1. 1 • 0.100 98 Impervious Center-of-Mass del.time.7.7 min(778.3.770.6) • 0.090 61 Turf-B Soils "api jieb'wro ' 0.040 55 Forested-B soils 0.100 98 Impervious 0.230 76 Weighted Average Volume Invert Avail.Storaoe Storage Description • 0.040 55 Forested-B soils Stage-Area-Storage for Pond 1P:Storage 0.130 56.52%Pervious Area 01 372 75' 622 d 420"Round 47'Pipe 0.230 76 Weighted Average ovation Storage Elevation Snx 0.100 43.48%Impervious Area 92 373.06' 1,291 d L=6-Round.00 9• 0.130 56.52%Pervious Area ' Pipe 0.100 43.48%Impervious Area - -- (feet) (cubic Matt (feet) fat%leell L.183.0'S.0 0050 0372.75 0 375_45 361 Tc Length Slope Velocity Capacity Description 372.80 0 375.50 .39E (min) (feet) Ifon1 Iff!sex:1 (cis) 1,915 ofTotal Available Storage Tc Length Slope Velocity Capacity Descnptkon 372.85 1 375.55 .432 5.0 Calvet Entry, (min) (feet) Wit (1Uaeel (cis) Device Rail Invert Outlet Devices 37290 2 375.60 4.66 5.0 Careen Entry, - 372.95 4 35.65 .500 Outfall Primary 372.76 4.0-W e,0=3,00 6 375.70 .533 Summary for Subcalchment 5S:Offsite Detained #2 Primary 375.20' Weir.G W Grate C-0.600 - A33 rY Somme for SI3f3�tchmerrt 5S:Otfsite Detained 373.05 10 375-75 566 Offset(feet)0.00 0.00 1.75 1.75 225 225 4.00 4.00 373.10 15 35.80 .597 Runoff = 0.64 cis @ 11.96 hrs,Volume= 0 032 al Depth>2 58' Height(feet)1.28 1.00 1.00 0.00 0.00 1.00 1.00 1.28 Runoff 1.21 cis @ 11.96 hrs,Volume= 0.063 at,Depth>5.OT 373,15 20 375.85 .628 37320 27 37590 658 Runoff by SCS TR-20 method.UH=SCS.Weigted-CN,Time Spann=0 0024 00 hrs ell.0,01 hrs Primary OutFlow Max=0.57 cis @ 12.06 hrs HW=374.74'TW=368.70 (Dynamic Tailwater) Runoff by SCS TR-20 method,UN-SCS,Weighed-CN,Time Span=0.00-24.00 hrs,di-0.01 his 373.25 35 375.95 .606 Type 1124-hr 1 YEAR Rainfa8=3 03• L1=0dficeorate Orifice Controls 0.57 do @ 6.50 fps) - 373,30 44 376.00 .714 ( Type II 2d-M 10 YEAR Rainfall=5.54' 373.35 55 376-05 .740 2=Outten Welr(Controls 0.00 cis) 373.40 66 376.10 764 Area lac) CN Description Area(act ON Des 373-45 79 378 15 .787 • 0.010 61 TUd-B Soilsai on 373.50 93 376.20 .807 • 0.140 98 Impervious Pond 1 P:Storage • 0 40 61 Imp-8 Soils 373.55 109 376.25 .826 0,150 96 Weighted Average N,. 0.1405 98 Impervious 373.60 126 376.30 .842 g - - ---- 0.150 96 Weighted Average 373.65 144 375.35 .05E 0.010 6.67°re Pervious Area - _ _--- Area - f3 373.70 164 376.40 .85E 0.140 93.33'Y Impervious Area io:,.aa 0.0140 93.33%I pervious Area 373.80 18208 376.50 .879 087 Tc Length slope Velocity Capacity Descnpdon Inflow Area_0.390 ac Tc Length Slope Velocity 373.85 232 376.56 .894 Capacity Description 373.85 232 376.55 .ee+ (min) (feet) ttvrt) In-sec) Idol Peak Elev=374.74• (min) (feet) ItvTt) in-sac) (cis) 2 01/28/19 HCG COUNTY COMMENTS 373.90 258 376.60 .900 5.0 Direct Entry, 3 3.74 95 285 376.65 Storage=826 cf 5.0 Summary for Reac DirectR:Ex AO 1(STRM 6) 1 11/12/18 DAB COUNTY COMMENTS 374.05 343 35.5 .911 Sums ery for Reach 7R:Ex AO 1(STRM 6) No. DATE BY Description 374.10 374 376.60 .913 374.i5 406 35.85 .914 (52]Hint INeo'Oullet condAlorl5 not evaluated - 1521 Hint:mle40wet conditions n01 evaluated 374.20 439 35.90 .915 I ITEveoNS (now Area= 0.380 ac,63.16%Im MNM 374.25 473 376.95 ,918 Inflow Area- 0.380 an,63.16%Impervous,Inflow Depth> 1.64' for I YEAR event Inflow = 2.47 cfs @ 11.96 hrs Impervious.Inflow 0.120 at.%. (a t O YEAR even) DRAWN BY 374.30 507 Inflow - 1.08 cfs @ 11.96 hrs,Volume- 0.052 of roves 374.35 542 Outflow 1.08 cis @ 11.9E hrs,Volume. 0.052 af.ABen=0°,:. 0.0 min Outflow = 2.47 do @ 11.96 hrs,Volume. 0.120 af.Arlen=0%.Lag=0.0 min DRM 374.40 577Lag' APPROVED BY 374.45 eta lrg D Rou by Dye-Sloe-Ind method,Time Span=0.00-24.00 hrs.dt-0.01 hrs DRM Routing 374.50 649 by yn-Stor-Ind method,Time Span.0.00-24.00 hrs.oft=0.01 hrs Max Velocity=16.50 fps,Min.Travel Time.0.1 min CHECKED BY Vel 374.60 723 A vac.Velocity 4.18 ft s,Avg.Travel Tome.0.2 min DATE gy= pAvg.Velocity-4.79 fps.Aug Travel more.02 min JANUARY 28,2019 374.65 760 374.70 798 Peak Storage-5 d @ 1 1.96 hrs r'0 i 2 0 4 5 6 1 . s 10 11 12 i2 14 IS 14 n 121 12 20 21 22 23 24 Peak Storage=a cif 03 71.9E hrs 5 TI.e wow.) Average Depth at Peak Storage=0.19' TITLE 374.75 83 374.80 873Average Depth at Peak Storage=0.13' Balk.Filll Depth=2.00'Flow Area=3.1 M.Capacity=133.89 cis 374.85 871 Bank-Full Depth-2.00'Flow Area=3.1 sr,Capacity=133.89 crs HYDROCAD 374.90 949 24.0'Round Pipe 374,95 987 24 0"Round Pipe n=0.013 ROUTINGS 375.00 1.025 n=0.013 Le Iv 54.5' SI Or 375.05 1.064 Length.54.5' Slope=035037 Inletert=368.67'. Invert. 349.57 375.10 1.101 Inlet Invert=368.67,Outlet Irwert=349.58' AND WAT E R A 375.20 1.177 3525 1214 QUANTITY CALCS 375.30 1.251 375.35 12880 0 PROJECT NO. 50075660 375.40 1.325 SHEET NO. C6.3 • I - I - I_ • I - I 10 YEAR STORM CALCULATIONS CON'T ADEQUATE OUTFALL 2 9 Dewberry' PROPOSED CONDITIONS PROPOSED CONDITIONS CON'T EXISTING CONDITIONS Summary for Subcatchment 2S:Detention Pipe DA Summary for Reach 4R:Pro AO I(STRM 6) 111n1P-5s Current pate Desa•,J. . Dewberry Engineers Inc. Runoff = 3.14 cis @ 11.96 hrs.Volume= 0.165 at,Depth>5.0T (521 Hint:Inlet/Outlet conditions not evaluated 4805 LAKE BP000>HVE '--ideas iT:cet.x Data--- 2,1,100 GLEN ALLJf.V^23060 Run off by SCS TR-20 method,UH=SGS,Weighted-CN,Time Span-0.00-21.00 his,dt=0.01 hrs Inflow Area= 0.530 ac,79.25%Impervious.Inflow Depth> 4.47- for 10 YEAR event e04.290.7652(PHONE) Type II 24hr 10 YEAR Rainfall=5.54" Inflow 2.29 cis @ 12.02 hrs,Volume- 0.197 a1 user: soils Late: .029Y2018 604.250.292e(PAx) Outflow = 229 Us@ 12,02 hrs,Volume= 0.197 al,A[Ien=O°r>,Lag=O.O min Prolice: ac:a Parking Lot Units: aryuen E a(act CN Descriptionsmell tza:Ea eceng em, Areal er+Jrs:Acres Are state, Virginia 4-• • 0.020 61 TURF-SOIL 8 Routing by Dyn-Blom-Ind method,Time Span.0.W-24.00 hrs,M=0.01 hrs County: Albemarle was-1»oAA_L C • 0.370 98 IMPERVIOUS Max Velocity=16.09 fps, Min.Travel Time=01 min Filename: e:''ACSAtS15001e660'1e,-90CAlculatarve'Ad.quere Wttat11A02 Ea tst0na.e55 ca 0.390 96 Weighted Average Avg Velocity=5.53 fps,Avg.Travel Tme=0.2 min cc E 0.020 5.13%Pervious Area - Q Z Peak Storage.8 of@ 12,02 hrs ---Sub Area 0Ce--- C 0.370 94.87%Impervious Area Average Depth at Peak Storage=0.18' = O To Length Slope Velocity Capacity Description Bank-Full Depth=2.00'Flow Area=3.1 St,Capacity-133.64 cfs SoonE Q (min) (feet) (Ra0 (*sec) - leis) 0 p_i.,n Reset Ar..ao1 RCM To I- Z N 24.0'Round Pipe Au z ea d ap m«, Outlet ails sl a.1m 5.0 Direct Entry, Le 0.013 Q Q - Q Length=54,5' Slope.0.34907 lord.aura: ,Ie mac) art Summary for Subcatchment 3S:Staircase-Site Area Inlet Invert=368.60•,Outlet Invert=349.5e' 0 X Z CO CC worm Laa - Runoff = 0.73 cis @ 11.96 hrs,Volume= 0 W3 af.Depth>280" - - - 5 nQ � > 3 eelntall L.Fth by aalntall eeeuf-period rY v W LC Runoff by SCS TR-20 method,UH=SCS.Weighted-CN,lime Span=0.00-24.00 hrs.dt=0.01 hrs CC /\ Type II 24-hr 10 YEAR Rainfall=5.54- 0 :-xr 5-Yr i:i-Yr JS-Yr SC-Tr 100-Ys I-Yr W W {'' J 1rn) (AO fir) r:ni tan) liar i:mt w I- W (n J z Area(ac) CN Description 1.86 4.68 5.54 6.81 '+9__.. _s . ... -+lot Z I- 1_ 5 O • 0.090 61 Turf-Soil B W O O (n J • 0.050 98 Impervious Reach 4R:Pro AO l(STRM 6) sr r. Source: ae pr custom : C 0.140 74 Weighted Average HY4rng.0. Rainfall r,: >. Type: Type n.d .dot. Z CD e_ 0.090 64.29%Pervious Area DinerSll lestris 0 an cet cc^ V L i a.xpsaan lees tinit NYdrograpn: andard> 0.050 35.71%Impervious Area ' : w _12.2Si. �. O Z Z '3� < Tc Length Slope Velocity Capacity Description Inflow Area= �.. 0.53D ac '29ds ) Q Y CC D D (min) (feet/ (felt) (fusee) lcrs) Av!!1• ter'Flow Dth=0.18' ' - - ..:,ill ACNA Parking Lot W ,- Q eppa� 5.0 Direct Entry. Ex:stl ng Eordl.ionu Max Vel=16.09}Pe Albemarle SOME 1 MOAt_O county. Viry:n_aCC CC a CO U Summary for Pond tP:Storage 24.0" < W aydregreph.P.ati P.ax tame Table CO Round Pipe ELCD Inflow Area= 0.390 ac,94.87%Impervious,Inflow Depth> 5.0T for 10 YEAR event a sub-Area Peak Plato and Peak*tee in rn r) by Rainfall Re Period Inflow = 3.14 cfs @ 11.96hrs,Volume= 0.165 af - n=0.013 of Peach 2..Tr 10-Yr 1-Yr 0 1 Outflow = 1.80 cfs @ 12.03 hrs.Volume. 0.165 at;Att ); Ideal:11ex lost t_re) tcfa) 1en=43%.Leg=4 5 min L=54.5' I nr l it, it I CD = 1.80 cis @ 12.03 hrs.Volume= 0.165 al , 5=0.3490 Y SUBAPEA`i -1 Routing by Dyn-Star-Ind method,Time Span-0.0024.00 hrs di-0.01 hrs nc z a.r 5 0.45 e.oa Q Cn Peak Elev=375.95'@ 12.03 hrs Surt.Area-563 st Storage.1,684 cf Capacity=133.64 cis 12.02 u.94 l2.cz SEAL •en4a♦p a. ea Plug-Flaw detention time-10,8 min calculated for 0.165 al(1001E.of inflow) keA0bES ietl;y:Au a o e - Center-of-Mass det.time=10.8 min(765.4-754,7) -. O' i�ti 2(LFT 0.15 0.45 aloe '/ p S Volume Invert Avail.Slorage Storage Description More ftemw1 u�CY�_..P `r' G•wtl[?I 41 372.75' 622 d 42.0=Round 42•'Rpe Iff.Irt AN: eomat L.64.5'S.0.0048 uc 27 aumt 82 373.06 1,294d 36.0-Round 36-Pipe PROPOSED CONDITIONS Sr*o 1�2s�19 w r� L-183.0'S.0.0050't �1 A,` 07? --- 1,915of Total Available Storage 100 YEAR STORM (UNDERGROUND DETENTION) Mar,Ye_5S C:.:rear Oita 0tertioli•1a .� 0NMAk t.eQM i.AeA Device Routing Invert Outlet Devices Cl Primary 372.75 4.0"Volt O.ifice'Grate C=0.600 Summary for Pond 1P:Storage --• Ida,. ,taion°'t' -' KEY PLAN 62 Primary 375.20' outfall Weir,C=3.33 Offset(feet)0.00 0.00 1.75 1.75 225 2.25 4.00 4.00 [95]Warring:Outlet Device#2 rise exceeded a(e': kci;l Lace: cnalrSnle C' Height(feel)128 1.00 1.00 0.1)D 0.00 1.00 1.00 1.28 S.:b-='e:Pl at oon>Cro:i ter A:eai asita:A:reaa • Inflow Area= 0.390 ac,94.87%Impervious,Inflow Depth> 8.61" for 100 YEAR event Mir>1-:e Primary Outflow Max=1.80 cis@ 12.03 hrs HW=375.94'TW-368.78 (Dynamic Tailwater) Inflow = 5.21 efs@ 11.96 hrs,Volume= 0.280 of linty: Albemarle za:F. •l ROAN-0 L1=Orifice Grate(Orifice Controls 0.73 cis@8.38 Spa) Outflow _ 520 Gs@ 11,96 hrs,Volume= 0.280 af.Aden=0%.Lag=0.3 min Filename:P:6ACSA15a500?S5EO1Teantealc.:atlora,Mie9uabe Ousrall\AO 2-Propcs.d.u55 2,4:RAU l weir(Weir Controls 1.07 cfs @ 2.87 fps) Primary 5.20 cfs @ 11.96 hrs,Volume= 0.280 al Paid 1P•Storage Routing by Dyn-Stor-Ind method,Time Span.0.00-24.00 hrs,dt=0.01 hrs ---sea-Alma Dela--- Peak Elev.376.51'@ 11 96 hrs Surf Area-148 sf Storage=1.888 or I1ydrogr.ph Name Ofacr:pt_on React Areatscr RCP To ----------- _..-.-_._ el of detention time=9.3 min calculated far 0.280 af(100 inflow) -..- .. - __ - -. - - _ __ ---.- __ __. --_ - SCALE I .3 _ la } Center-of-Massdet.time=9.2 min(753.6-744.4) AC 2 mop;c d,et ciner s La e. 0.:oc 4 s_ a ' rl Total oriel .Off lac, a Inflow Area=0.390 ac Volume Invert Avail.Storaoe Storage Description a. It 372.75' 72 of 420 Round 42 PipePeak Elev=375.95' - L.64.6'S.0.0048Y' - _.� u. Storage=1,684 cf 42 . , c • p•. L=183.0'S.0.0050',^ kalmfa-1 eeper by aA:oa.l vex am Period _ • 1.915 ct Total Available Storage z-Y: s-Tr r -T ze-Yr 50-Y: 1a6-x: 1-Yr i ' : t+n) ala �„) tm,) ant and ttr., I Device Routing Invert Outlet Devices Cl Primary 37275' 4.0"Vert.Orifice/Grate C=0.600 c6 4.66 5.54 6.b. 1 9 9.1 1.0- N2 Primary 375.20' Outlet)Weir,Co 3.33 Offset(feet)0.00 0.00 1.75 1.75 2.25 2.25 4.00 4.00 -e� <.prr nsra dC, Veer y+rviled o„u_._stem,dare. ainfail Distribution iyde: Type II Height(feel) 1.28 1.00 1.00 0.00 0.00 1.00 1.00 1.28 ,�,,n.amess a::ny<o-ayreph: rs.andara, Primary OutFlow Mao=5.20 cis @ 11.96 hrs HW=376.51'TW=368.90' (Dynamic Tailwater) 11=Orfhee'Grate(Orifice Controls 0.80 cis @ 9.12 fps) B 2=Outfa l Weir(Weir Controls 4.40 cis @ 2.721ps) Moil: Af3A pa.rinv cut --- TO>pr.e Probe..ZAA_D tons a r 3 a 5 6 1 . a ,C , ,J , ,5 ,fi ,1 ,. ,. to f+ 3L 2a 2f Tw Iha:me1 4 A:p¢mar le LOSE 1 MOAA_L Oouary, VisV.nia Pond 1 P:Storage N:sdrograck rnOO.B000 cm..Table Nskettr se 2 01/28/19 HCG COUNTY COMMENTS -. _ _-,-- ....... .___fT_-- Sub-Area Peak flow and Peak r-ce rhrl by Pet•.tatl Retnr:.Peeled-,-" 1 11/12/16 DAB COUNTY COMMENTS or Peach z xr 10-xr :-xr Identifier (efs) ;nisi (emu) • flu, it, <rt) No. DATE BY Description Inflow Area:0.390 ac • ""-"..........--"'.--------- REM 9DNB S_9F•PEAS ' Peak Elev=376.51' AO 2 0.10 0.221 0.06 11.45 11.64 11.cz MNM DRAWN BY Storage=1,888 cf DRM PEACkf-9 • APPROVED BY • £ J 00'0T 6.10 0.2e 0.04 - CHECKED BY DRM d DATE JANUARY 28, 2019 O MILE ' - HYDROCAD - ROUTINGS a , x 3 a 5 5 3 g - 0 12 ,a 14 , ,6 I 19 ,g 2L 1, ,-, 25 24 AND Y.totue2 A QUANTITY CALCS PROJECT NO. 50075660 SHEET NO. • C6.4 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 11 x 17 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.) • 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 Clearing,grading,excavating,and Land Disturbance area Follow Erosion and Sediment Control unstabilized areas Plan.Dispose of clearing debris at acceptable disposal sites.Seed and mulch or sod within 7 days of land clearing. Paving Operations Parking lot and driveways Cover storm drain inlets and use drip pans and absorbent/oil dry for all paving machines to limit leaks and spills Landscaping operations Landscape areas shown on plan Apply fertilizers in accordance with _ _ manufacturer's recommendations and not during rainfall events 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, Generating 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.) Alexander Morrison - Owner - (434)-977-4511 This form will be transferred 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 Albemarle County Service Authority Operations Center Expansion: Parking Lot Expansion 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 1111.2 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 to Important Spill Response Plan p 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 Employees will Quality (800) 592-5482 • • 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) 1MS, Inc. / 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) III ( o •• EROSION 8.SEDIMENT CONTROL LEGEND \\ I Mit IIMUMCARDIOY Dewberry(c\N: Pa 426) /AW USE I ® rout AOPfS!BI \ \ Dewberry Engineers Inc. ®A EAR SAFETY FENCE 3.01 330 LF I I 1 / CBOS lAl(E 6ROOK DRIVE 1 SUITE 200 GLEN ALLEN.VA 23060 1 \\ I I \ `;+ 604290]95](PHONE) 'I • •-••-•-• • I \ ROD L. EWE 8042907923 I E.) E CE - - - - - CONSTRUCTION ENTRANCE 3.02 1 EA �1]\ ® \ �Fi \ +J\\ \ •. 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' \ I 1 PS • • N. 1 ♦ , w� \\ ,� \0\/ \,/ TS MU 1 ,/ ,[l Sk 4/ 0: \ ,� /��VA 11Ar£ SCALE I ✓ / ,' , % REMOVE PAVEMENT ` \ C7 1 it -� \ '' MARKINGS(TVP) \ it /' 1 i/ / 1 / • �. -SHALL / E \ ] I / .. / A �Oyat� / ,.../.: / II SLAM I S it TPdtp .V z Ni4/./- 1 I 1 P I .,/, / DISTURBANCE 1 LIMITS OF I 1 j r:i is}:'.:('.::':::7:rr RE f` OR2 AC ' \ \ l 111 1 ,�� ,0/ DEMO CURB8G i �� B • II i L j. I STOCKILE,BORROW FUELIry�,yJAS ��. �� WASHOUT AREA EN ASFFNNOOI�F'CON•: Al / .'In \ "'- / '� �« 2 Oi/28/19 HCG COUNTY COMMENTS 1 �V I ;P� OfEPHNY.' 1 11/12/18 DAB COUNTY COMMENTS ,� �6 i 1 �� / w/8BC'K No. DATE BY Description .. 'I e CCCUIYS 1 ,�y',@A;. �P / /�Xj REVISIONS �/'/ •` �) `�f rti 4 �W/ L. '�I / VMNM DRAWN BYDRAT • ,.1T. .,,.,,f-.s...a Ai, APPROVED BY 1 • -04:jam.'+:, f. 9' SAW CUT AND DEMO CHECKED BY DRIA 1 �� \\ �a���i� «J• ASPHALT(APPRO%.24'FROM EX GU ER / DATE JANUARY 28,2019 \\ ��I/ '� PAN,NEW GUTTER PAN,OR AS SHOWN 7 TITLE PROTECT STOR '' ) ' 11 , / / , POLLUTION STRUCTURE FROM ACCESS GATE LOCATION(CONTRACTOR DAMAGE DUE IC crra'�/2�a1•Ia'nBv,Cw B:/rD/+ti' PREVENTION // ' TO PROVIDE LOCK) / / VEHICLE TRAFFIC , SpF /BB 61171N47 AY1ER / 1 `i= �//L DEMO CURB INLET TOP r I / /-STORY / 1 ' AND PREPARE STRUC RE WICK MAW j PLAN A - --1 NI[ =SAE I �' FOR NEW MH1 TOP / / / 1(5 / / low _• ,G / PROJECT NO. 5007566o NAIL FOUND 57A9//N v �� <- SHEET N0. N:3,899,357 6,47003 7A��166 /\ E:1149fi,470.41 -\ // / X X 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. A bacteria TMDL has been listed for this receiving water. The project will not further influence the bacteria TMDL for this watershed. 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.) Alexander Morrison - (434) 977-4511 - 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 "I 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: Alexander J. Morrison Company: Albemarle County Service Authority Title: Senior Civil Engineer Signature: Date: Sral�l 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 formal,signed delegation of authority is needed.) Delegation of Authority 1,Alexander Morrison (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 ACSA Opertations Center Expansion 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(COP),and that the designee above meets the definition of a"duly authorized representative". Operator Name: Alexander Morrison Company: Senior Civil Engineer Title: Senior Civil Engineer Signature: Y�L Date: g1 v!i 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 )4'rI 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 I l I 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 III 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 III 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 II'w+SPECTION REPORT Date Tnspection Personnel Nature of Discharge Storm Water / Snow Melt (circle one) Tnspection Location Inspection Time Temperature (°F) Conditions at Time of Humidity (%) Inspection Barometric Pressure (in Ha) Conditions Runoff Occurring Y / 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 Y / N (if no, explain) efficiently Storm Event Information Date of storm event (mm/ddyr) 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