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HomeMy WebLinkAboutWPO201900034 VSMP - SWPPP 2019-12-19o LL COUNTY OF ALBEMARLE $ Department of Community Development u L 401 McIntire Road, North Wing Charlottesville, Virginia 22902-4596 Tel. (434) 296-5832 9 Fax (434) 972-4126 �rR�1�xF Stormwater Pollution Prevention Plan (SWPPP) For Construction Activities At: Project Name: UVA Encompass Health Rehabilitation Hospital WPO#201900034 3640 Lonesome Pine Lane Charlottesville, Virginia 22911 Prepared by: Timmons Group 608 Preston Avenue, Suite 200 Charlottesville, VA 22903 Contact: John Hash, P.E. 434.327.1691 Prepared for: Encompass Health 3600 Grandview Parkway, Suite 200 Birmingham, AL 35243 Contact: Elizabeth Mann 205.970.7850 SWPPP Preparation Date: December 17, 2019 (This document is to be made publicly available according to 9VAC25-880-70, Part II, section D) 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 VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY FOR OFFICE USE ONLY GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM ID Number: CONSTRUCTION ACTIVITIES (VAR10) Technical Criteria: 1113 ❑ IIC ❑ REGISTRATION STATEMENT 2019 NEW ISSUANCE M' MODIFICATION WITH ACREAGE INCREASE ❑ Existing Permit Coverage Number (if applicable, VAR10####): Section I. Operator/Permittee Information. RE -ISSUANCE ❑ MODIFICATION WITHOUT ACREAGE INCREASE ❑ 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: M.J. Harris Construction Services, LLC Contact person: Address: 1 Riverchase Ridge, Suite 300 City, State, zip Code: Birmingham, AL 35244 Phone Number: Primary Email: 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: Encompass Health Contact Person: Elizabeth Mann Address: 3600 Grandview Parkway, Suite 200 City, State zip Code: Birmingham, AL 35243 Phone Number: 205-970-7850 Primary Email: Elizabeth.Mann@encompasshealth.com 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 V 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: UVA Encompass Health Rehabilitation Hospital Address: 3640 Lonesome Pine Lane City and/or County and Zip Code: Charlottesville, VA 22911 Latitude and Longitude (6-digit, decimal degrees format): 38.138291; 78.440016 C. Construction Activity Entrance Location (description, street address and/or latitude/longitude in decimal degrees): Entrance located off of new road proposed by others 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: N/A 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 permit coverage. Report to the nearest one -hundredth of an acre. Total land area of development (including the entire area to be disturbed as approved in the Stormwater 8.11 Management Plan): Primary estimated area to be disturbed (portions with 8.11 Erosion and Sediment Control Plan approval only): Offsite estimated area to be disturbed (if applicable): N/A C. Property Owner Status: B. Estimated Project Dates (M M/D D/YYYY) Start date: 04/20/2020 Completion date: 04/20/2021 FEDERAL ❑ STATE ❑ PUBLIC ❑ PRIVATE V D. Nature of the Construction Activity Description (i.e. commercial, industrial, residential, agricultural, environmental): Commercial Rehabilitation Hospital E. Municipal Separate Storm Sewer System (MS4) name (if discharging to a MS4): Albemarle County 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. 6t" Order Hydrologic Unit Code (HUC) and Receiving Water Name(s). Attach a separate list if needed. HUC RECEIVING WATERBODY(S) 020802040303 North Fork Rivanna River - Jacobs Run 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 ENO ❑ Erosion and Sediment Control Plan Approval Date (for estimated area to be disturbed).: C. Has land disturbance has commenced? YES ❑ NO V 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.): N/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 III. 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 stormwater 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 stormwater 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 stormwater pollution prevention plan or comply with other permit conditions). In the context of stormwater 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 auth ority 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: Signature (signed in ink): Date: 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: Department of Environmental Quality Office of Stormwater Management Suite 1400 PO Box 1105 Richmond VA 23218 constructionep@deg.virginia.eov If the locality is the VSMP Authority, please send to: fhe Local VSMP Authority (insert address below Albemarle County Community Development Department 401 McIntire Road North Wing Charlottesville, VA 22902 Rev 04/2019 PAGE 4 17 Section 1. Registration statement (Provide a signed completed copy of the DEQ registration statement) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 2. Notice of general permit coverage (This notice is to be posted near the main entrance according to 9VAC25-880-70, Part II, section C.) (Provide a copy of the DEQ coverage letter when obtained) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 3. Nature of activity (Provide a detailed narrative of the construction activities. Include or reference a construction schedule and sequence. Include any phasing.) This project includes the construction of a rehabilitation hospital and associated parking, utilities & landscaping. Limits of clearing and grading area is 8.11 acres. The property is bounded by a fire rescue station and vacant land to the south. To the east, north and west there is mostly vacant wooded property. All construction shall take place in accordance with the Erosion and Sediment Control Sequence of Installation on plan sheet C3.0. Estimated construction dates are as indicated on the Registration Statement. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 4. Erosion and Sediment Control Plan. (Provide a reduced, 11x17 copy of the latest Erosion and Sediment Control Plan. Do not reference only.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County EROSION AND SEDIMENT CONTROL NARRATIVE: PROJECT DESCRIPTION THIS PROJECT INCLUDES THE CONSTRUCTION OF A REHABILITATION HOSPITAL AND ASSOCIATED PARKING, UTILITIES & LANDSCAPING. LIMITS OF CLEARING AND GRADING ARE 8.11 ACRES. ADJACENT PROPERTY THE PROPERTY IS BOUNDED BY A FIRE RESCUE STATION AND VACANT LAND TO THE SOUTH. TO THE EAST, NORTH AND WEST THERE IS MOSTLY VACANT WOODED PROPERTY. EXISTING SITE CONDITIONS THE SITE WILL BE SUBDIVIDED FROM A PARCEL OWNED BY THE UNIVERSITY OF VIRGINIA FOUNDATION. THE FUTURE PARCEL IS MOSTLY WOODED AND VACANT. SITE ACCESS WILL BE PROVIDED BY A PROPOSED ROAD, TO THE EAST, BY OTHERS. OFF -SITE AREAS NONE. CRITICAL EROSION AREAS NO CRITICAL EROSION AREA EXIST. UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE CURRENT ADDITION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. THE MINIMUM STANDARDS OF THE VESCH SHALL BE ADHERED TO UNLESS OTHERWISE WAIVED OR APPROVED BY A VARIANCE BY LOCAL AUTHORITIES HAVING JURISDICTION. STORMWATER RUNOFF CONSIDERATIONS UNDERGROUND PIPES WILL BE USED TO CONVEY STORMWATER ONSITE. THIS SITE PLAN IS PART OF AN OVERALL DEVELOPMENT PLAN WHICH WILL UTILIZE A REGIONAL BMP TO TREAT STORMWATER RUNOFF FOR QUALITY AND QUANTITY. REFER TO DOCUMENT TITLED "STORMWATER MANAGEMENT / BMP ANALYSIS AND FLOODPLAN STUDY FOR THE UVA RESEARCH PARK" BY DEWBERRY & DAVIS, OCTOBER 1997. ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE MAINTAINED IN ACCORDANCE WITH VESCH AND THE CONSTRUCTION SEQUENCE, INCLUDING THE INSPECTION OF ALL MEASURES AFTER ALL RAIN EVENTS. STRUCTURAL PRACTICES: 1. TEMPORARY CONSTRUCTION ENTRANCE - 3.02 A TEMPORARY CONSTRUCTION ENTRANCE SHALL BE PROVIDED AT THE LOCATION INDICATED ON THE PLANS. IT IS IMPERATIVE THAT THIS MEASURE BE MAINTAINED THROUGHOUT CONSTRUCTION. ITS PURPOSE IS TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. 2. SILT FENCE BARRIER - 3.05 SILT FENCE SEDIMENT BARRIERS SHAL L BE INSTALLED DOWNSLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT -LADEN RUNOFF FROM SHEET FLOW AS INDICATED. ITS PURPOSE IS TO INTERCEPT SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS AND PREVENT SEDIMENT FROM LEAVING THE SITE. 3. STORM DRAIN INLET PROTECTION - 3.07 STONE FILTERS SHALL BE PLACED AT THE INLET OF ALL DRAINAGE STRUCTURES AS INDICATED ON PLANS. ITS PURPOSE IS TO PREVENT SEDIMENT FROM ENTERING THE STORM DRAINAGE SYSTEM PRIOR TO PERMANENT STABILIZATION. 4. DIVERSION DIKE - 3.09 A TEMPORARY RIDGE OF COMPACTED SOIL TO DIVERT WATER FROM A CERTAIN AREA. 5. SEDIMENT TRAP -3.13 ATEMPORARY BARRIER OR DAM WITH A CONTROLLED STORMWATER RELEASE TO DETAIN SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS IN "WET" AND "DRY" STORAGE LONG ENOUGH FOR THE MAJORITY OF SEDIMENT TO SETTLE OUT. 5.1. MAINTENANCE OF SEDIMENT TRAP- INSPECT TRAP EMBANKMENT WEEKLY TO ENSURE IT IS STRUCTURALLY SOUND AND HAS NOT BEEN DAMAGED DURING CONSTRUCTION ACTIVITIES. THE TRAP SHALL BE CHECKED AFTER EVERY RAINFALL EVENT. ONCE THE SEDIMENT HAS REACHED THE DESIGNATED CLEANOUT LEVEL IT SHALL BE REMOVED AND PROPERLY DISPOSED OF. 6. TEMPORARY SEDIMENT BASIN - 3.14 A TEMPORARY DAM WITH A CONTROLLED STORMWATER RELEASE STRUCTURE IS TO BE USED TO DETAIN SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS LONG ENOUGH FOR THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. 6.1. MAINTENANCE OF SEDIMENT BASIN - INSPECT BASIN EMBANKMENT WEEKLY TO ENSURE IT IS STRUCTURALLY SOUND AND HAS NOT BEEN DAMAGED DURING CONSTRUCTION ACTIVITIES. THE BASIN SHALL BE CHECKED AFTER EVERY RAINFALL EVENT. ONCE THE SEDIMENT HAS REACHED THE DESIGNATED CLEANOUT LEVEL IT SHALL BE REMOVED AND PROPERLY DISPOSED OF. 7. DUST CONTROL - 3.39 DUST CONTROL IS TO BE USED THROUGH THE SITE IN AREAS SUBJECT TO SURFACE AND AIR MOVEMENT. VEGETATIVE PRACTICES: 1. TOPSOIL (TEMPORARY STOCKPILE) - 3.30 TOPSOIL SHALL BE STRIPPED FROM AREAS TO BE GRADED AND STOCKPILED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL BE LOCATED ONSITE AND SHALL BE STABILIZED WITH TEMPORARY SILT FENCE AND VEGETATION. 2. TEMPORARY SEEDING - 3.31 ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR MORE THAN 30 DAYS SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SELECTION OF THE SEED MIXTURE SHALL DEPEND ON THE TIME OF YEAR IT IS APPLIED. 3. PERMANENT SEEDING - 3.32 FOLLOWING GRADING ACTIVITIES, ESTABLISH PERENNIAL VEGETATIVE COVER BY PLANTING SEED TO REDUCE EROSION, STABILIZE DISTURBED AREAS, AND ENHANCE NATURAL BEAUTY. 4. SOIL STABILIZATION BLANKETS & MATTING - 3.36 A PROTECTIVE COVERING BLANKET OR SOIL STABILIZATION MAT SHALL BE INSTALLED ON PREPARED PLANTING AREAS OF CHANNELS TO PROTECT AND PROMOTE VEGETATION ESTABLISHMENT AND REINFORCE ESTABLISHED TURF. MANAGEMENT STRATEGIES 1. PROVIDE SEDIMENT TRAPPING MEASURES AS A FIRST STEP IN GRADING, SEED AND MULCH IMMEDIATELY FOLLOWING INSTALLATION. 2. PROVIDE TEMPORARY SEEDING OR OTHER STABILIZATION IMMEDIATELY AFTER GRADING. 3. ISOLATE TRENCHING FOR UTILITIES AND DRAINAGE FROM DOWNSTREAM CONVEYANCES IN ORDER TO MINIMIZE PERIMETER CONTROLS. 4. ALL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE MAINTAINED UNTIL THEY ARE NO LONGER REQUIRED TO COMPLY WITH THE CONTRACT DOCUMENTS OR STATE LAW. PERMANENT STABILIZATION ALL NON -PAVED AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH PERMANENT SEEDING IMMEDIATELY FOLLOWING FINISHED GRADING. SEEDING SHALL BE IN ACCORDANCE WITH STD. & SPEC. 3.32, PERMANENT SEEDING. SEED TYPE SHALL BE AS SPECIFIED FOR "MINIMUM CARE LAWNS" AND "GENERAL SLOPES" IN THE HANDBOOK FOR SLOPES LESS THAN 3:1. FOR SLOPES GREATER THAN 3:1, SEED TYPE SHALL BE AS SPECIFIED FOR "LOW MAINTENANCE SLOPES" IN TABLE 3.32-D OF THE HANDBOOK. FOR MULCH (STRAW OR FIBER) SHALL BE USED ON ALL SEEDED SURFACES. IN ALL SEEDING OPERATIONS SEED, FERTILIZER AND LIME SHALL BE APPLIED PRIOR TO MULCHING. SEQUENCE OF INSTALLATION PHASE I (SEE SHEET C3.3-C3.4) 1. A PRE -CONSTRUCTION MEETING IS REQUIRED WITH ALBEMARLE COUNTY E&S INSPECTOR, CONTRACTOR, OWNER, AND ENGINEER. THIS MEETING SHALL TAKE PLACE AT ALBEMARLE COUNTY COMMUNITY DEVELOPMENT BUILDING. CLEARING LIMITS MUST BE FLAGGED PRIOR TO THE MEETING WITH ONE (1) WEEK OF NOTICE. 2. INSTALL CONSTRUCTION ENTRANCE, SILT FENCE, SUPER SILT FENCE AND OTHER PERIMETER MEASURES. 3. CLEAR AND GRADE SEDIMENT TRAPS AND BASIN. 4. INSTALL STORMWATER STRUCTURES AND PIPES DOWNSTREAM OF SEDIMENT BASIN, PER SHEET C3.4. 5. INSTALL DIVERSION DIKES & INLET PROTECTION. 6. AFTER ALL EROSION AND SEDIMENT CONTROL MEASURES ARE IN PLACE, SITE WORK CAN BEGIN. 7. SEED ALL DENUDED AREAS PER VESCH STANDARDS. PHASE II (SEE SHEET C3.5-C3.6) 1. BEGIN ROUGH GRADING THE PROJECT AREA. INSTALL STORMWATER STRUCTURES AND PIPES TO DIVERT RUNOFF FROM THE "LOOP ROAD" TO THE SEDIMENT BASIN. INSTALL THE END SECTION AND OUTLET PROTECTION AS NOTED ON SHEETS C3.5-C3.6. SEE SHEETS C5.1, C5.2, C7.1 & C7.2 FOR STORM STRUCTURE DETAILS. 2. CONTINUE GRADING OPERATIONS TO ELIMINATE THE EXISTING DITCH AND ESTABLISH THE BUILDING PAD ELEVATION. 3. AD]LIST ALL DIVERSION DITCHES AND SEDIMENT TRAPS AS NECESSARY TO PREVENT SILT/SEDIMENT FROM LEAVING THE SITE. 4. SEED ALL DENUDED AREAS PER VESCH STANDARDS. PHASE III (SEE SHEET C3.7-C3.8) 1. INSTALL ADDITIONAL INLET PROTECTION WHERE SHOWN ON THE PHASE II EROSION AND SEDIMENT CONTROL PLAN AS THE STORM SYSTEM IS CONSTRUCTED AND BECOMES OPERATIONAL. 2. FINE GRADE PROJECT AREA. APPLY PERMANENT SOIL STABILIZATION TO THESE AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS ACHIEVED. 3. ALL STORMWATER PIPING & STRUCTURES SHALL BE INSPECTED FOR SILT/SEDIMENT. IF PRESENT, SILT/SEDIMENT SHALL BE CLEANED OUT FOR THE SYSTEM TO THE SATISFACTION OF THE E&S INSPECTOR. 4. ONCE THE SITE UP HILL FROM EACH SEDIMENT TRAP HAS BEEN STABILIZED AND APPROVED BY ESC INSPECTOR, REMOVE THE SEDIMENT TRAP. 5. ONCE THE SITE UP HILL FROM THE SEDIMENT BASIN HAS BEEN STABILIZED AND APPROVED BY THE ESC INSPECTOR, THE SEDIMENT BASIN CAN BE CONVERTED TO THE DRY POND. REMOVE ALL SEDIMENT BUILD UP AND GRADE THE DRY POND PER THE FINAL GRADING PLAN. REPLACE THE RISER STRUCTURE PER THE FINAL GRADING PLAN. 6. APPLY PERMANENT SOIL STABILIZATION TO THESE AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS ACHIEVED. 7. ONCE CONSTRUCTION IS COMPLETE AND ALL CONTRIBUTING AREAS ARE STABILIZED, EROSION CONTROL MEASURES CAN BE REMOVED UPON APPROVAL FROM THE E&S INSPECTOR. MINIMUM STANDARDS: AN EROSION AND SEDIMENT CONTROL PROGRAM ADOPTED BY A DISTRICT OR LOCALITY MUST BE CONSISTENT WITH THE FOLLOWING CRITERIA, TECHNIQUES AND METHODS: MS-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. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. MS-2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCKPILES AND BORROW AREAS SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING MEASURES. THE APPLICANT IS RESPONSIBLE FOR THE TEMPORARY PROTECTION AND PERMANENT STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS WELL AS BORROW AREAS AND SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE. MS-3. A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMANENTLY STABILIZED. PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT IS UNIFORM, MATURE ENOUGH TO SURVIVE AND WILL INHIBIT EROSION. MS-4. SEDIMENT TRAPS, PERIMETER DIKES, SEDIMENT BARRIERS AND OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP IN ANY LAND -DISTURBING ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. MS-5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. MS-6. SEDIMENT TRAPS SHALL BE DESIGNED AND CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY THE TRAP. A. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA AND THE TRAP SHALL ONLY CONTROL DRAINAGE AREAS LESS THAN THREE ACRES. MS-7. CUT AND FILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION. SLOPES THAT ARE FOUND TO BE ERODING EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED WITH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED. MS-8. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME OR SLOPE DRAIN STRUCTURE. MS-9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED. MS-10. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT SEDIMENT -LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT. MS-11. BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS OR PIPES ARE MADE OPERATIONAL, ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN BOTH THE CONVEYANCE CHANNEL AND RECEIVING CHANNEL. MS-12. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE TAKEN TO MINIMIZE ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE DURING CONSTRUCTION. NONERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NONERODIBLE COVER MATERIALS. MS-13. WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES MORE THAN TWICE IN ANY SIX-MONTH PERIOD, A TEMPORARY VEHICULAR STREAM CROSSING CONSTRUCTED OF NONERODIBLE MATERIAL SHALL BE PROVIDED. MS-14. ALL APPLICABLE FEDERAL, STATE AND LOCAL REGULATIONS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET. MS-15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED. MS-16. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION TO OTHER APPLICABLE CRITERIA: A. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME. B. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES. C. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE, OR BOTH, AND DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING STREAMS OR OFF -SITE PROPERTY. D. MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE STABILIZATION. E. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESE REGULATIONS. F. APPLICABLE SAFETY REGULATIONS SHALL BE COMPLIED WITH. MS-17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE, THE ROAD SURFACE SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTED TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. THIS PROVISION SHALL APPLY TO INDIVIDUAL DEVELOPMENT LOTS AS WELL AS TO LARGER LAND -DISTURBING ACTIVITIES, MS-18. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM AUTHORITY. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. MS-19.PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE PROTECTED FROM SEDIMENT DEPOSITION, EROSION AND DAMAGE DUE TO INCREASES IN VOLUME, VELOCITY AND PEAK FLOW RATE OF STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM OF 24-HOUR DURATION IN ACCORDANCE WITH THE STANDARDS AND CRITERIA LISTED IN SECTION 19 OF VIRGINIA ADMINISTRATIVE CODE 9VAC25-840-40 MINIMUM STANDARDS. EROSION AND SEDIMENT CONTROL NOTES: eGENERAL ES-1: UNLESS OTHERWISE INDICATED, CONSTRUCT AND MAINTAIN ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE LATEST EDITION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIAREGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. ES-2: THE CONTROLLING EROSION AND SEDIMENT CONTROL AUTHORITY WILL MAKE A CONTINUING REVIEW AND EVALUATION OF THE METHODS AND EFFECTIVENESS OF THE EROSION CONTROL PLAN. n E ES-3: PLACE ALL EROSION AND SEDIMENT CONTROL MEASURES PRIOR TO OR AS THE FIRST STEP IN CLEARING, m 8 GRADING, OR LAND DISTURBANCE. > E ES-4: MAINTAIN A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN ON THE SITE AT ALL TIMES. v E H W > 3 ES-5: PRIOR TO COMMENCING LAND -DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFFSITE BORROW OR WASTE AREA), SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE ARCHITECT/ENGINEER AND THE CONTROLLING EROSION AND SEDIMENT w W 1p CONTROL AUTHORITY FOR REVIEW AND ACCEPTANCE. a U N ES-6: PROVIDE ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND z w v SEDIMENTATION AS DETERMINED BY THE RESPONSIBLE LAND DISTURBER. (MODIFIED NOTE) C x N o ES-7: ALL DISTURBED AREAS SHALL DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING a LAND -DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT. i `w Fu> ES-8: DURING DEWATERING OPERATIONS, PUMP WATER INTO AN APPROVED FILTERING DEVICE. n ES-9: INSPECT ALL EROSION CONTROL MEASURES DAILY AND AFTER EACH RUNOFF- PRODUCING RAINFALL EVENT. MAKE ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL e F DEVICES IMMEDIATELY. SOILS INFORMATION: 0 47C- LOUISBURG SANDY LOAM, 7 TO 15 PERCENT SLOPES. MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: A s 47C- LOUISBURG SANDY LOAM, 15 TO 25 PERCENT SLOPES. MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL F DRAINED, HYDROLOGIC SOIL GROUP: A w 94B - WEDOWEE SANDY LOAM, 2 TO 7 PERCENT SLOPES. MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: B a 94C - WEDOWEE SANDY LOAM, 7 TO 15 PERCENT SLOPES. MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL N DRAINED, HYDROLOGIC SOIL GROUP: B j 0 •• • z O f i 51612019 D N BY Z. DAHL DESIGNED BY A. ALLISON 1. HASH SCALE NA J Q V) O 2 z O Q J IM-I W 2 Lu J Q Lu 2 V/ ca G O z Lu J Lu W oZS Lu O Z J O Z O U Z Lu Lu M 66 z O W O Lu OB NO, 43266 C3.0 A PIPE OUTLET CONDITIONS A Lam' -•�.����:• TABLE 3.31-B ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS -QUICK REFERENCE FOR ALL REGIONS' PLANTING DATES SEPT. 1-FEB. 15 PIPE OUTLET TO FLAT AREA WITH NO DEFINED CHANNEL FEB. 16-APR. 30 La O %— I� T SECTION A -A FILTER KEY IN 6"-9"; RECOMMENDED CLOTH FOR ENTIRE PERIMETER J —i� .�1�1��1 �/IAr���t��T��r� \7PIPED T UTLET TO WELL DEFINED CHANNEL PLAINVIEW��7�� ► Le 0%� dTj 1 SECTION A -A FILTER KEY IN 6"-9"; RECOMMENDED CLOTH FOR ENTIRE PERIMETER NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION BASKET, OR CONCRETE. 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED USING PLATES 3.18-3 AND 3.184. 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN 6 INCHES. 3.18-1 OP OUTLET PROTECTION MAY 1 -AUG. 31 TS SPECIES RATE(LBSJACREI -� GRAVEL INLET SEDIMENT FILTER JCURB \ / 50/50 MIX OF ANNUAL RYEGRASS (LODUM MULTI-FLORUM) 8 50-100 CEREAL(WINTER) BY (SECALE CEREALE) \ ANNUAL RYEGRASS 60-100 /J (LODUM MULTI-FLORUM) GERMAN MILLET SO (SETARIA ITALICA) 001 TABLE 3.32-D SITE SPECIFIC SEEDING MIXTURES FOR PIEDMONT AREA TOTAL LBS. PER ACRE MINIMUM CARE LAWN COMMERCIAL OR RESIDENTIAL 1]5-200 BE. KENTUCKY 31 OR TURF -TYPE TALL FESCUE 90-100% IMPROVED PERENNIAL RYEGRASS 0-5% KENTUCKY BLUEGRASS 0-.- GENERAL SLOPE SlOR LESS) KENTUCKY3I FESCUE 128 LBS. RED TOP GRASS 2LBS. SEASONAL NURSE CROP' 20 LBS. so Les. P LOW -MAINTENANCE SLOPE (STEEPER THAN 3:1) RENT 3I FESCUE 108 LBS. RED TOPOP GRASS 2LBS. SEASONAL NURSE CROP20 LBS. CROWNVETCH " 20 LBS. 150 LBS. ' USE SEASONAL NURSE CROP IN ACCORDANCE WITH SEEDING DATES AS STATED BELOW: FEBRUARY I6TH THROUGH APRIL ANNUAL RYE MAY 1ST THROUGH AUGUST 15TH ............................ FOXTAIL MILLET AUGUST 16TH THROUGH OCTOBER ............................... ANNUAL BY NOVEMBER THROUGH FEBRUARY 15TH..................... WINTER RYE SUBSTITUTE SERICEA LESPEDEZA FOR CROWNVETCH EAST OF FARMVILLE, VA (MAY THROUGH SEPTEMBER USE HULLED SERICEA, ALL OTHER PERIODS, USE UNHULLED SERICEA). IF FLATPEA IS USED IN LIEU OF CROWNVETCH, INCREASE RATE TO 30 LBSJACRE. ALL LEGUME SEED MUST BE PROPERLY INOCULATED. WEEPING LLVEGRASS MAY BE ADDED TO ANY SLOPE OR LOW -MAINTENANCE MIX DURING WARMER PSSEEDING PERIODS: ADD 10-11 LBSJACRE IN MIXES. 3.32 C]GG QQC] STANDARD ORANGE VINYL OR PLASTIC CONSTRUCTION FENCE ATTACHED TO POSTS (PRE -WEATHERED WOOD, GALVANIZED STEEL, IRON OR THICK PVC PLASTIC), AT LEAST 40" ABOVE FINISH GRADE WITH SPAN BETWEEN POSTS NO GREATER THAN 6' ON CENTER. EVERY NINTH POST SHALL CONTAIN A WARNING SIGN THAT CLEARLY IDENTIFIES THE TP FENCE AS A TREE PROTECTION FENCE. NO SCALE 3 2 ACRES OR LESS OF DRAINAGE AREA: 6" FILTER CLOTH 3 (OPTIONAL) (DOWNSTREAM VIEW) VOOT $1 COARSE AGGREGATE FLOC ROCK CHECK DAM NOTE: WD =� "awe (III (IIII I,II11 IIII COARSE AGGREGATE t MINIMUM TYPICAL GRAVEL STRUCTURE IIIN1- _ ... IIn 11u111111��--IIIIIIII NI-(IIII III�hIIIII=IIII pp111111`Il =111u IIN=_ �il _„' _„II - -TYPICAL EARTHEN STRUCTURE m COMPADTED SOIL e 4.5MIN. TEMPORARY DIVERSION DIKEws.w oF / /Es Aj FLa '� rulll E H STAKES EXGAVA GiTHS 1-50 N FL-11/IIII SHEET FLOW INSTALLATION (PERSPECTIVE VIEW, $F RO MDRAINAGEWAYINSTALLATIONO 3.05-2 (FRONT ELEVATION) N/A POSTSL SET EXCAVATE WIRE FENCING TO TREND UPELOPE ALONG THE LINE OF THE POSTS P IL� 'Le J APT4. BAGKFLL AND COMPACT THE THE WIRE FENCE AND EXTEND IT INTO E%CAVATED SOIL. E TRENCH. _ �FLow EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. SSF FLTEIR FI BRIc- wRE I a.o SILT FENCE (WITH WIRE SUPPORT) 2 X H- W"`ET WI WOOD SILT FENCE DROP INLET PROTECTION OR - GRATE D o� FRA"' Op LINKEXCESS CORNEA STgKE PERSPECTIVE VIEWS PERSPECTIVE VIEW FA RIC DETAIL A ELEVATION OF STAKE AND FABRIC ORIENTATION THIS (METHOD `OFA"LET PROTECTION IS APPLICABLE WHERE THE INLET DRAINS A RELATIVELY RAT AREA (SLOPE NO GREATER THAN 5%) WHERE Al,_ THE INLET SHEET OR TYR CONCENiRAIEDM ROWS, SSUCHNASTIN SiREET00R nIGHWAYEIMEDIAN)SAR PERSPECTIVE VIEW rs� a PERSPECTIVE VIEW P E SAF PLASTIC FENCE METAL FENCE ALL TREES IN A TREE PROTECTION AREA OR ISOLATED SPECIMENS THAT ARE NOT SPECIFICALLY SHOWN TO BE REMOVED ARE TO BE SAVED. ANY EXCAVATION OR TRENCHING WHICH IMPACTS THE ROOT SYSTEM OR CROWN BRANCHING OF TREE(S) NEEDS TO BE CARRIED OUT FOLLOWING THE GUIDELINES OF THE TREE PRESERVATION SPECIFICATIONS. THE SERVICES OF CERTIFIED ARBORIST SHALL BE REQUIRED. TREE PROTECTION FENCE: STORM DRAIN INLET PROTECTION 1 SAFETY FENCE N. SEE CIVIL DRAWINGS FOR LOCATION OF TREE PROTECTION FENCING. TEMPORARY, PARTIAL RELOCATIONS OF ENCLOSURE WILL BE ALLOWED TO ACCOMMODATE CONSTRUCTION NECESSARY WITHIN DRIPLINE. AS WORK WITHIN DRIPLINE CONCLUDES, ENCLOSURES SHALL BE REPLACED 18" BEYOND EXTENT OF DRIPLINE. 8'-0" HT CHAINLINK (2" MESH, 11 GA. FABRIC) CONSTRUCTION FENCE PANELS SET ON GRADE SECURED BY MEANS OF CONCRETE BASES. TREE PROTECTION FENCE SHALL NOT BE SECURED BY PENETRATING THE EXISTING GRADE. MODIFIED 3.38 CE TREE PROTECTION q MOUNTABLE BERM CLOTH (OPTIONAL) EXISTING GROUND SIDE ELEVATION I I 12'MIN.PM MIN "� PAVEMENT VDI COARSE AGGREGATE B POSITIVE L10' MIN. 'MUST EXTEND FULL WIDTH OF �DRAINAGETo INGRESS AND EGRESS OPERATION SEDIMENT TRAPPING DEVICE PLAN VIEW 12'MIN. 3"MIN. ( ( .) 3.. MIN. FILTER CLOTH $ECTON A -A REINFORCED CONCRETE DRAIN SPACE SECTION B-B STONE CONSTRUCTION ENTRANCE a8 •• • z O f i Z 6 u U O W z DATE 51612019 DRAWN BY Z. DAHL DESIGNED BY A. ALLISON CHECKED BY J. HASH SCALE N/A J Q V / O Z O Q J W 2 Lu 2 J Q Lu ,2 V / L ca G O Z Lu OB NO, 43266 L C3.1 tied lm ent Iraq design drainage aBa (acres) [c31 0.6T trap volumes! Nevalion (rt) area (SO. M mefcyl 574 213 575 345 10.3 576 503 15.7 577 666 22.0 578 M29.3 579 1126 37.4 114.6 e91 Stomob. Net s"rage required (cY] (67TAI 44.9 bottom d.1me-IR] 577.0 rrel ."rape pmaded a1 ttw eleneam Icy) 48.1 .lope I w Storage side. 2:1 dry storage: Try storage required Icy) (67'DA) 44.9 MI of Slone N'e/ 579.p dry storage p,.rlded at Ibis eieQU.h (cy) 65.7 since of dN storeos sides 2.1 drarr�e aea (acres] [�3} p.6b hap volume . S of ion (ft) area W) �me(cYi 565 492.71 %6 73516 22 7 5ei 1002.73 322 %8 1295.44 42.5 569 181320 53.9 it. -Sol Net a1DtaW' N01 storage required (el)(67'OA) 43 6 bottom N sloe weir III] 567.0 "I storage pr011ded at fts elexalion Icy) 54.9 elope & W EI S"raga Sites 2:1 3y ..rage try slorBge required fcyl [67-DAI 43 $ :rest (A slgne wgr 569A dry sfoMe praMed at this elenenpn (cyl 96.4 do. c1drr, sloreo. Sides 2.1 SEDIMENT TRAP coarse aggregate stkail be VDOT 0. 4357 of 05 weir lagm IA) (6x DP.) 4.0 bottom d trap eL Vlon M 574 bottom trap dimensionslui< IW nl dam ele ebon frt l 5K. bop widB, of dam (rt] W hap dxnen a 40K16 _F M -Coarse aaWazMe shag he V DOT AF3. #357 of 0 war length (A) I&❑4) 3.9 bottom (l.p eleardon IR) 585 bottom Irap dlmenslo 3' 50%10 tap of dam dMUM 0) 570 tap width o1 dam M) 2.5 "o biro dmensiuw 6&28 Sediment Basin design drainage area [acres) 9.3 basin wkonea: - eleer.n Irt) ..lire area t.ry wtu.e(cyl 527 54C4 err; 528 e369 218.0 528.5 W8 .93 52B 7392 254.6 530 8470 293.7 x..x 531 BM 334.7 532 10798 377.9 x rive,r.n.r 53$ 12LW 423.1) 534 13351 4703 534.2 12619 99.9 535 14712 419.7 536 16131 571.2 537 17605 624.7 530 19136 680.4 539 N724 M t 549 MW 796.0 -1 S"rage: wA storage required Icy) M?'CAI 623.1 design NO wafer dewateiln0 orifice elewnon [8) 530.0 top Of dam 111 590.0 -W storage P"ded at in'$ A&+mfm tcyi 869.2 top width of dam {1[1 6.0 requred (dune before cleaned Icy) (I'DA) 3p8.9 boll.. of bash ifL) 527.0 mailabe,olume before dear -A (cy) 340.6 appro b.ltam dimensions. WX 124: elean.ut deali-(ft) 528.5 upstream face slope: 31 distance from cx a, A to orifice (tt) p V) 1.5 downstream face slope' ? 1 dry StOrme dry sxml * required (gy)1671DAI 623.1 balles WC pie¢iple spillway oast (ff) 534.2 length .(flow, L (fl) 0 dry storage pmWded at this elexatim (cy) t705.8 eflecthe width. We M) 0 diameter of dematering.afice (in) 3.0 L 1 VY. iha®es re -.d if , 2) 0.0 7iameter d lle,l lble tubing (in) mo 4w-Z) $.0 callers' NO nNKN[ (See Routing In ealc book) deg. Of water at spnuway crest M) 0 C(us. 0.45 fo, Lie earth) 0.45 .I.p..r uP Crean, be. tZ1) o be {min) 198 slope of barrel (sb) o 2yr 2.9 O 2yr Ira length.( bane) m sateraleC zone (W 0 25yr 4.8 A 25yr 20.$ number edlers required 0 dimension of collaa 0 pmclple spillway: Mftble head Mt 6.1 aroarwey stwMI". NO diameter rise (in} So bottom width (n) 0 diameter trash rack {in) so slope of exist channel MM) 0 barrel length (6) 435 length of exit chapel fR] 0 dli meta Ctbaad Inn) 21 crest Or spi" Il) 0 barrel km. In eleatlpn A) 521 band inn. our denwlion (a) 406 SEDIMENT BASIN (PHASE 1 No araM a E > E a E ¢LLi; 3 wow aJ`u z O a �Mv v � 30 y,LL lu/1 �Q> O r � ref � O i2 O s 0 F V O 0 5/6/2019 0 � DaAwN av Z. DAHL DESIGNED By A. ALLISON HASH SCALE N/A E `m L _= JOB NO, 43266 SHEET NO. C3.2 EROSION CONTROL LEGEND LIMITS OF CLEARING AND GRADING'^�---____,� _____ -,,__/%% DRAINAGEDIVIDE - / / / ,� /, ' '�'/ /_________- - / / // /l _ - -530-- SOIL AREA DIVIDE - / / ,�� ' /' '�, �' � _' __�--_ - - - - ��___ -____ -_,, __ __ � //� // I I _____ ___ SAF —SASAFETY FENCE 3.01 _ _ WC —.A— 9E9'il '_' "_"_ y - _ _ _ _ _ �,9T�EP 8LOPES , _ _ CE CONSTRUCTION ENTRANCE 3.02 / / /i / i� Y 1 / (pRES�6fiV�LJi / , / _ _ _ _� �545- i �r 1 'bA,xy,2-�1-ICI A)AGE6) SF X X SILT FENCE / /' / ' '/ / `'-s,7%s� /1 - 1 _��I' -1-`1 jam_ -- _/ ,'� /OSfA1. 3.05 SS F SUPER SILT FENCE 3.05 / _ _ _ _ _ I _ _ _ _ _ _ F " i - _ EENIFRL7 AM I / / ,5�a0- t ^ E / / • '// / / / /-y.:i`�'//hy "y € IP ® INLET PROTECTION 3.07 /,/,/ 4i'�'�/�_ r' /`��, / k� k __\\� \ __ W If<>E _� _��— '�_—_ —�� ----� vA�� V� ,___• vA��-y-/ /I,' 0 _ vE CIP ® CULVERT INLET PROTECTION 3.08 -�- - ` \ -->�555- - \ \ \\ \ \ �\ \\ \ \ _ _WETLANDS 5 3 1n (n DD O _ _ DIVERSION DIK3.0l -�\\\ \t�WW .50'SrREAMBUFFEk a u z E g ST SEDIMEM TRAP 3.13�.SO LTY�E:� SB SEDIMENT BASIN 3.14 / j ,' / ' i /� �' =-= - - - - SEDIMENT TRAP #2 /� '/ - PHASE I DRAINAGE AREA =0.65AC /_VA PHASE - _ - PHASE 2 DRAINAGE AREA =0.65 AC ' \ \ '� O' STR AM`BUF EN pp OUTLET PROTECTION 3.16 /' ' /�+' y a y - TOTAL STORAGE REQUIRED: 87 CV \ \ \ \ \ F w u / 9 1 �, -- \ TOTAL STORAGE PROVIDED: 151 CY ��%� �_�'/ ARE jE GE�'-g 'y �'�{�`," s'y TOP OF DAM ELEVATION: 570.00 �� I•' \ \ \ "\�\ \ `� _ ,111Ynm 1_y CD CHECK DAM 3.20 6yA�� / ' 'Jyv /✓ _ _ _ _ �_ _ " ` x \ \ '� _ \ 6 � ��\\ RTC ' ,v , 1 SPILLWAY TS TEMPORARY SEEDING PS '/ AI RIPRAP TP.31 s PERMANENT SEEDING 3.32 WET/NI / MULCHING 3.35 -y�y- --- 565/ - - -- MU / ��'��- _ - 57 SF TP 1v TREE PRESERVATION FENCE 3.38 / ' „ \ _ _ _ - - ' 1 \ - " - - \ \ _ _ ST2 O _______/. +_�h,d 11 1 DD - CD > DC DUST CONTROL 3.39 /y, I_ --SOILSYPE:-T`P'� \\ \ \\ I V o 10 AREAS STEEPER THAN 3:1 TO BE -$7� TOTAL LIMITS OF - r - /' / / T \ \ \ 1 /y _ _ -`♦ B/M STABILIZEDWITH STABILIZATION 3.36 __ _ DISTURBANCE=8.11ACRES - - ."yam \ \ \ \ \ \ \ \\/,'/ DATE O BLANKET S \ \ DD - - - - -51612019 * "VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK" SPECIFICATION NUMBER ' - - - __ i �_ I = _ - ; ; ;^ DD \\ \ \\ \ - ' - - - - - - _ _ _ - ' - \ \ \ \ \ \ \ \ \I 1 1 1 1 11 11 \ \ ' / / ' ,'�I ' DRAWN BY _ _ \ \ 'WIRt'FEN E \\ \ \\ 1 \ 1 1 1 / ' / / / —moo.\�, / ' z.oARL �% DESIGNED BY SEDIMENT TRAP #1 _ PHASE 1 DRAT NAGE AREA = 0.64 AC - " /� __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ l� - \ \ \ \ \ \ 1 1 1 1 1 I I 1 �� ' / / y /1 • _ _ i / ' i - _ _ _ _ _ _ _ _ _ _ 1 I / ij/ _ - _ _ PHASE 2 DRAINAGE AREA=0.64 AC 590;_�_ �_ 1 illl III \ \��\\ / - \ 1 I 1 / / / I TOTAL STORAGE REQUIRED: 89.8 CY /•' / - _ �' _ - l - �_ - - = _- - _ / I A / _ _ _ _ _ _ _ _ _ _ - A v vv 1 I 1 A ALLISON TOTAL STORAGE PROVIDED: 11a.80 CY%-_- III v DC I I i - _ _ _ - . / / , / cHecKeo BY TOP OF DAM ELEVATION: 580.00 / SF - - -_ _ - - ij11YIDE= - / h�/ / /h/ / / \ \ TS ' , , _ - - - _ _ _ \\ \ 1 I 1 I I / •• �'/ '' �_- i�-/„/�il \ \ \� \ ,_ \ x I 1 I 1 I I/W ��/ • J. HASH SCALE �,y. II ..// ,' �:e!�� ♦ �.%ii: ��- / �_____ ___________ TS ____ \\ III I I r ' DC I �' I I I � 1 / ,y6 1„=30' \ ,, / , a - \1v1 vv\ \ I v \ v Iv' vI �!1/ \ I- - -_'-// ��_ -___-,'-'♦-"♦"�'' / ',/ i/,'./,.�\� ` I /v//\ � _ _ - - 5p5� \ 1 1 1 1 1 1 1I I 11r � x 1I 11r1/ I I / I I I l I I I�r I I I l IrI r lI r I I ///���' rrr���� i��,'�' / /y55 //' , U�. � /i nTS /l DFIkINAGE _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ``DIVIDEEMERGENCY SPILLWAY SF WCLASS Al RIPRAP C wIwEnwNOB TS _ / / J Q NSF / �� ♦♦ \ \ / A v vI \� �/�CL - - 1 r \ ♦ A `� `v �v ` v -- - I I I I I I I I I 1qq' / I11 _ "��� _ STI \ I / / \ �%/ ---- \ \ 1 I I I I I I I I I I j I IC / , • OIL P�`:/ \ / `\ INV.I7UTY RCA \ 1 I I I I I I / DRAINAGE ♦`- / �ELtlh=579:77' � ` i%\-------------- - -- - -- \ 1 \\ I I I I ' I/ I j i I I j i j Y ,'/ / i / .' W 7 O - i' cn DIVIDE ♦ - - - - __ _ _ -�-/- -\ % \ \ \ I i /'/ w _ SF I / / , a ' _ - - -� ' / ' , ^ _ �' M/ ' \ - - \ \ 1 1 1 1 1 I k l 1 1 1 1 1 1 \I \ / , , ;Lzu u \ ����♦ _ �\ //\ J\ \\�O \\ \ \ I I 1 1 1/1 1 1 1 1 1 1 1 1 1 /'y/ Q m i r / / _ \ \ \ 1 I I �1 1 1 1 ' 1 1 1 \ 1 1 „' / ' // / �. / - .570 O = 3 O DC ' ENE ��-_ - A �V - vI v I TB I 1 I I I 1 1 v 1 v�y /' / /' ' / 1 Z - / _ � I J a 4A /NDS/N 15%2FP \\ ` 1� I I 1 I / / / / �hV O pAD ELEV.--5BO.80^ \ _ ` 1 k I I I / W DD VgL R 1 ,' / / ' h v A r I I W/REI FENIPE I i I I I / / , / ' / / � W O - � SOILtYPE: /I i i XI I s75 ov U `A/ 94B I I I I I I / I I I' / - W SF \ 1�_�_� _ / v v / /' / l r / I I I I I / / _ _ _ _ Q Q 586 _ _ _ _ NPci/°7875"E / W LLI DC �_/� E TS 582 - SF _ _ _ _ _ _ _ _ _ _ _ _ _ - SF _ _ _ - TS / I' I / r ✓ /l /l I I - _ t= ' ,' // / , a / v / a 3 DC TS / e ♦ I s N ' Q Q 574 T - 580 , I r� , __yam = / s�4/ / - ♦I se R SEE DRAWINGS - _ _ _ _ — _ — _ _ T \ �f — — — — — /�♦ O e IP - - S 1 _ _ — — SAN S ♦ _ U Ise_— W Lu TITLED •LIVARESEARCH -------W- --- -- -- - -- -- sANy T_s S SAN` ; sAN/ Z . ` PARK LOOP ROAD" — —_ _ - - -w — = , W TR �o - - - - za/-�__ -� �T �-_-'-_-- — o� _ v � - __� -__ -- � - \\ 'tl • r 4a r r r Ea° e \\ 568 3�0 572� _ ►��-�ii����i�L_���7�`� IF 3 / �rw��� -575- ' - -7 _ v �574, 575_ - T - �� \\�` \ 76_ _ _ _ -5j5= �_____--/ / l , l l NPD Toe ma. i; \ \\ � __ II STORMINLETW - _ , � � I ����578_ _ _ \ � _ _ _ _ _ _ _ � _ _ _ _ � \ / / 43266 - \ 2.5'X 2.5' ,T / , r �� ,_ - - - ` _ I % SCALE I"=30' SHEET NO - o ELEV.=572.56' ^ I o r / r - - _ �O _ - - 0 30' 60' v /NV. 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ALLISON S C�C _ , STRUCT E TTB STALLED PE EDIMENT BASIN - - - - �. �� \ \ \\ \ \ - / / • / / W \ \ \ 1 CHECKED BY - _ - - �` A V DETAIL C3.2 RIS STRUCTUR T BE _ A �. / _ _ / - - REMOVE D REP CED\WITH FIN STRUCTURE - - - - - - - - - - - - - - - \ \ \\ \\ \ ' / • ]. 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STORM PIPE INSTALLATION i5 1 i =+ > O W W i / Q Qp OUTLET PROTECTION 3.16 / / �' ' ,'%�+' y� _ , - _ - _ _ TOTAL STORAGE REOU IRED: 87 CY I _ \ F / y y TOTAL STORAGE PROVIDED' 151 \ I ¢ 1° RE,EAV,E,-gy TOP OF DAM ELEVATION: 570.00 CY\� CD CHECK DAM 3.20 �� SPILLWAY TS TEMPORARY SEEDING 3.31 ' / ' / �' ,' ' / / ,�V-'�� CLASS Al RIPRAP PS PERMANENT SEEDING 3.32 WETL9N6S � - ' i - � � _ -' - - - _ _ -' - -- - ' s � �55/ � � TP -560= ���CD• SF �/ �� /,y55/ MU MULCHING 3.35 CD TP 1v TREE PRESERVATION FENCE 3.38 / y „" _ _ - _ _ _ -' TP , TP SF CD a DC DUST CONTROL 3.39 ry, SOIL -TYPE:- - - _ DD 47C- - -5'"_ _-'-'/'/.��� TY I I I 1 y __---- 9 �\ V `� 1 I 207 �� SF Oi p AREAS STEEPER THAN 3:1 TO BE - TOTAL LIMITS OF - _ - / / L I / ` B/M STABILIZED WITH STABILIZATION 3.36 _ - DISTURBANCE= 8.11 ACRES I J _ _ _ _ _ 1 'su. 208 �� ;\ 3 DATE BLANKET ems\ \`� ` I DD 0V �' /301 51612019 * "VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK" SPECIFICATION NUMBER _ - i I - " ; - _ DD \ `� �\ `� - - ' - - - - _ _ - ' \ I \I I �� 1 1 I 1 I 1 1 1 \ / \1 DRAWN BY -i_ _ _ _' - - " - --�i1 _ _ _ 1 \ /\ \ - - - - -s1p. '12 . �\ \ 1 1 1 1 I 1 I 1 1 1 \ . Ip Z. DAHL / S 575 ,',=___ --�_'' -r __` I / - \� 11 I I 1 I 1 I I 1 \ SEDIMENT TRAP #1 _ _ - '�_-580 _ ; _ ; _ _ _ _ - - _ _ I I \ �\ \ / / \ \ \ 1 I 1 1 I 1 I I 1 - • DESIGNED BY PHASE 1 DRAIN AREA = 0.64 AC _ - " �� 'i, �; ; _ _ _ __ _' _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ;; i I I 1 - \ \ \ 1 1 1 1 II 1 1 I I 1 II �� / PHASE 2 DRAINAGE AREA = 0.64 AC - - - A. ALLISON TOTAL STORAGE REQUIRED: 89.8 CY / �___-'� _� _ _ ,r,ll,I II III A / --- TOTAL STORAGE PROVIDED: 114.80 CY / i!/'/ '_;��!- - ;=-- _/ouJ,//,/ nl DC A�/ '-_ - / CHECKED BY TOP OF DAM ELEVATION: 580.00 TS 1 I 7. HASH - _ V A I 1 1 I'/ / J SF -=i----�1� \ \ ���------- DC �- \ 1 1 I I I I I I I I I I I , r ,_' / co 'uy • SCALE i `T / \ TS \� I I r I I I I ' , I I r --------- I I I / M • • 1"=30' ` / \ EMERGENCY SPILLWAY ' I I I I I / r I _ �'/ /'� // • - v CLASS Al RIPRAP ' / \III I II I W1 - _ /' -_ -_ %' / '/ , i ` / RAI GE ` _ - - - - - - - 1 I 11 I I I I ' I r I I , , I I I INSTALL STORM INLETS 8 PIPES / I/ - ' SF TP��_��_ .590 '�� /�� `� 'iso DIVIDE --------- A I II 1 I I I I r r I r r r, TOCONVEYOFFSITE RUNOFF' L J - - - \ I I I I 1 I I I I I I I 1 I I r r r I FROM THE "LOOP ROAD" LLI SF ,r -�___ ` �� A JI A I -- - - -- �V I r r I I I I I I /VJ ia- 5 r r I \ STi - \ IL OIL PE`:/ /` �\ .' 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IP _ _ _ ' -/ / w -- Lu '� s 575 _ 57 - IP - - _- �\\ 573 Z4575 6� -_ - - - - - - - ------- ° ---� J __ r 1aI I E� IP u \ - E19 I \ - _ �_.-+-575 a Q _575- J '-����`874 I o 575_ 7.6 -575- -NPO g3 JOB NO, m,$ i; I \\ - II STORM/NLETW--'S78_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - �' i l I i 43266 _ - - - _ _ - - _ I SCALE 1"=30' ______r I r Wo i \ 1 \ , - - 1 I I ° , •� \ - - _ _ _ I SHEET N0. - aN 1 II TOP ELEV.=572.56' '- ai /----�580_ _--_ / 0 30' 60• ma _ - _ _ C3.5 gE L "__-______ �-;---___'___i -- -- _______\___---_—_`'_�`_�\�:. --------__` LoI III II„ �� �j, ,/ // , \\`\\" `\: _ \ 1 EDGE OF STREAM. CONTRACTOR SHALL NOT IMPACT EXISTING STREAM. W III'llllll" IIIIII'II l 1 I l /,/,' /// - I I I I I I I I I I , / / / / i , \ `. \ \ 1 I , \ I I I , , I , � � , �, ` � , ` p1 I ❑ \ WI \\ OP 1 _ IIIIII'A10 III II IIIIIII II�� IIIII IIII I�, ,,I/�i/ "_-----__ _-_-� � 11I I1 II II TP \\`� w I II IIIIII III''I III'IIII'I'I1 ',/// / r �� i / /, I I I 1 / \ \ \ ` I \ \ \ IIIIII - CLASS \ \ � `� v �` , v v 1 I I I I I' � A 1 A �QVG DTA. 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PORTION OF SITE TO BE RAISED TO FINAL GRADE TO ALLOW FOR STORM PIPE INSTALLATION \ \ j i \ / / / / , ' rn / ' _ v v I I I V _ SCALE 1"=30' r I \ _ SF— —__- 50 EROSION CONTROL LEGEND CD SF ' .5 � � ' " _ _ � � -'Y , \ \ \ � \ \ � _ " - _ _ _ _ � " � _ _ � \ ` \ \\ \ � � � LIMITS OF CLEARING AND GRADING - ' DRAINAGE DIVIDE 20 - - � � -( I / ` `. \. \ \ ` - - _ _ � ` -� ' _ � _ \ � \ \ � i i � SOIL AREA DIVIDE - _,.� SF .A ,; 20 _ - - - �\ -SEDIMENT BASIN TO BE EXPANDED TO ALLOW FOR _ \ \ \ \ \ `\ \ \ \ \ SAF —SAF— SAFETY FENCE 3.01 ,THE INSTALLATION OF STRUCTURE 194 AS SHOWN / CONSTRUCTION ENTRANCE 3.02 3.05 \ \ 07 I O� \ \ \ \ ` \ \-'---'�� — — \ _ �`_ ��' l \ _ $F� SILT FENCE SF SUPER SILT FENCE 3.05 %\ v 301 u11 1 11 11 1 \ \ I \ \ \ / / \ 1 \ \ - - _ - - " - _ - - - _ _ \ \ \ \ \ \ IP ® INLET PROTECTION 3.07 CULVERT INLET PROTECTION 3.08 ,\ 1 I \ _ - ` / \ _ . \ \ \ - _ _ _ _ _ \ \ \ \ \ \ \ 1\ \ DD DIVERSION DIKE 3.09 SEDIMENT TRAP 3.13 SEDIMENT BASIN 3.14 - I OUTLET PROTECTION 3.18 I e RAINAGE` INSTALL STORM INLETS &PIPES / / II / _ ` \ / D\ \ \ \ _ _ - - - - \ \ _ I , I `/ - " - - -DIVIDE TO CONVEY OFFSITE RUNOFF1 \ \ \ \ CD CHECK DAM 3.20 ' FROM THE "LOOP ROAD" _ _ - _ \ g I / - \ \ 1 \ \ \ \ ` \ TS TEMPORARY SEEDING 3.31 \ PERMANENT SEEDING 3.32 4\ ` �\ MU MULCHING 3.35 TREE PRESERVATION FENCE 3.38 3 —570 \ \ ............ DUST CONTROL 3.39 \ \ \ \ s \ O AREAS STEEPER THAN 3:1 TO BE o / ' / IP - ' 3 5 1 �\ \ - _ _ \ \ \ _ ` `' - - - " " - - - - - - - _ ` \ \ B/M STABILIZED WITH STABILIZATION 3.36 BLANKET "VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK" SPECIFICATION NUMBER as �F • a 7 O z O f i Z 0 a uu w 0 DATE 51612019 DRAWN BY Z. DAHL DESIGNED BY A. ALLISON CHECKED BY 1. HASH SCALE I"=30' J a Ln O z O Q _j W _ Lu I..L J Q Lu _ 'Ln V / Q c� G O z Lu Q N Lu Q a z Q a J O z O U z Lu G Lu z O U) O Lu ]OB NO. 43266 C3.6 L EROSION CONTROL LEGEND LIMITS OF CLEARING AND GRADING'^� - - - -,/� % /,p DRAINAGEDIVIDE - / / / ,� /, ' '�'/ /----- - - - - - - / / '/',� -530-- SOIL AREA DIVIDE - / / ,�, i / i i � , �� � _' __�-- _ - - - - ��___ -_ - __�' ______� � '/i �/ I I _-___ ___ SAF -SASAFETY FENCE 3.01 WC -.A- 9k971 CE CONSTRUCTION ENTRANCE 3.02 / , //, i� V 1 i / / (pREiEkVl�gr l12 - � 1- q A) AGE6), �, -_ 5_35' SF X X SILT FENCE / // ' ' '/ / `�i�%s/ /I 1 _��l' _1-`1 jam_ _/ ,'� _" .,vz /OHA1. 3.05 SSF SUPER SILT FENCE 3.05 / _ _ _ _ _ I _ _ _ _ _ _ F " i _ - OE 0- AM 1 / / ,5�40-� t ^E € IP ® 00 INLET PROTECTION 3.07 �,' 4i��t/i_ l' /`��, / k� k __ -__ >E CIP ® CULVERT INLET PROTECTION 3.08 // l / / //� < - - // / , //' _ - _ -�- - ` \ -->�555- - \ \ \ \ �\ \\ \ \ _ _ WETLANDS L y ' / / ^/ 1 W u '" 3 1n (n ODD _ _ DIVERSION DIKE 3.09 i ' % 70- _ _ ' " �A -� \ \ \ \ \ \ \ \ \ \ \ �i510: \�l / y N w t W W TT / \ '/ , �i ' /� j5 '/ ' - - - -� .50'SrREAMBU�FFEk � 1� �-c�-� \ / ,' a z E g ST SEDIMENTTRAP 3.13 - �SOLTY�2E:�, / / / wEl J 00 \ �_ _air O F i --_- - - -560 - \ -- - -- Q SB SEDIMENT BASIN 3.14 - - OP OUTLET PROTECTION 3.16 _ //'- k �, \�' gO'STR�AM�BUFFCEIP�\ CD CHECK DAM 3.20 i� �i ��/ i/, / �y y y y y _ _�/ TEMPORARY SEEDING 3.31 PS PERMANENT SEEDING 3.32 WETL9N6S -ram " TP - .y66/ s y3,�'��".� � 56y - , _ \ 55ea� B/M PS - _ \ z�� � / o MU MULCHING 3.35 , / � _ � � � - � - - - _ _- - _ - - - 559 / �'/r'_PSG O _-- , TP 1v TREE PRESERVATION FENCE 3.38 -' - - - - - - - -� / ` - - - - / � � 7-7 .� ti s� � sDUST CONTROL3.39 ISOIILSYPE:7 -\ L DC \� \4,\,\ 47C- - - - ---- _ - - - - - �1 4° 4-------__--4, 4,: _ V A _ _ _ -_ �A A - i0� AREAS STEEPER THAN 3:1 TO 10 BE - - -5'" TOTAL LIMITS OF - r - \\ / / \ 5DC - \ \ \ I \ \\ �\ \ 1 w� PS \\y\\ ( S DATE B/M STABILIZED WITH STABILIZAl[ON 3.36 _ _ _ - - - - - DISTURBANCE = 8.11 ACRES -_ _ _ _ BLANKET I51612019 A2 � I I * "VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK" SPECIFICATION NUMBER _ i i _- - - _ _ _ _ 4 4 4`1 1T 1 1 I o _ / DRAWN BY PS MU 573 \ ,-'i Z. DAHL 1 pS A.ALLISON _ _ • CHECKED BY 3F --— SCALE 1„ e 30, -- -- _ - MU / A 1 Il/ r I / / I • J PS // PSCL ui IP Lu OIL PE:- (n VJ _ 7 ---- Lu - _ Lu 0 .570 I s I ---- — IP Z r TP _ , v -- PS MU I I I I I I I I I / / d PS MU ~ / MU PS l 1 1 I I i MU BPS > � DC lE 1 / �l I II II 11 II II I / // ,/ / C W Q¢ 0 ---- -' " / , 'hi 'nl '� v � z Z c B - - - MU / -- _ SOIL tYPE: I - u - ? PS 573 �'� DC 5j5 v_ pg _ - i f S B/M �'j �S = - - 1 `� P ' / I I I I TI . . LLJ DC PS 3 / / / � I I I I I I ILu W 577---- PS - - _- _ IP 5>7 _----5i2. I I j I/ / / 22. Z I a' 573' ' a R PS / B/M _ _ _ _ _ J) 574----- I I / ' —� IP ' S23' Q Q �- 580 - _ -�� / 1 574 _ 0 \ ROAD IMPROVEMENT BY</ \ G � OTHERS. SEE DRAWINGS IP ----- ---- T + f — — L - _ (� W a TR TITLED "UVA RESEARCH - - - - - - - - - - - - sAN s �cN spN sAN 4 _ - PARK LOOP ROAD" _ _ _ _ _ _ _ _ :8 � 568569570 -575- J ' - _574 --- \` --- _ / / a �a x' 575_ - - 576- _ �- - _ _ _ _ _ _ / / / , / / NPD 3 JOB NO. m,$ �� _ _ � '575-- o \ \ II STORM/NLETW - _ , I ,� \ 578_ _ \ / - 43266 I _ � ___ _ _ ___ _ __ _ _ _ _ / SCALE I"=30' 2.5'X 2.5' I ,T / ��-----�---- ------ _�- r l IMINI SHEET NO. mo uN T II TOP ELEV.=572.56' I o / - ' l / r _� - - �580 _ -__--_ - / 0 30' 60' a 1NV. 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REMOVE ALL - - - _ - - \ \ _ _ - A ` DRAINAGE DIVIDE - SEDIMENT BUILDING UP AND GRADE THE DRY POND -- _ - - 545 \ \ \ \ PER THE FINAL GRADING PLAN. REPLACE THE RISER - - _ _ \ \ \ SOILAREA DIVIDE STRUCTURE PER THE FINAL GRADING PLAN —SAF— SAFETY FENCE 3.01 CONSTRUCTION ENTRANCE 3.02 9 SILT FENCE 3.05 01, % / \ \ \ /` I '\ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ PSUPER SILT FENCE 3.05 S \ _ v 1 I 1 \ \ IP li \ / _ \ - - - - - - " - _ _ _ _ - _ \ \ \ \ IP ® INLET PROTECTION 3.07 —`_ �v s PS 1 v A — _ �v v 1 - — \ ` 1 \ \ \ _ — �- — — \ y�/%► \ ` \ \ \ \ ` CIP ® CULVERT INLET PROTECTION 3.08 IP DC _ \ 11 ` _ — - - \ I \\ \` \\ \\ \ ` \\ \\ \ - _ \ \ _ . \ \ \ \ _ - - , - _ \ \ \ \ \ \ ` 1\ \ DD DIVERSION DIKE 3.09 SEDIMENT TRAP 3.13 B/M �� \ - \ \ \\ \ \ \\- _ - - - -_ \ \ \ \ \\I I \ \ SB SEDIMENT BASIN 3.14 - I I yy / PS / \ \ I� \\ \ ' \ \ \ OP OUTLET PROTECTION 3.18 MU PS I _ _ \ ` - - - - \ \ \ \ \ CD CHECK DAM 3.20 Ps V I / 49 \ _ \ \ - - - _ - \ \ \ \ ` \ TS TEMPORARY SEEDING 3.31 IIPERMANENT SEEDING 3.32 OIL PE: \\ - - 3 ' / 7 - — MULCHING 3.35 v / - - / - - - _ - - \ \ / \ \ TP Ta TREE PRESERVATION FENCE 3.38 Z570 DUST CONTROL 3.39 s\ O AREAS STEEPER THAN 3:1 TO BE b / / / IP / I " ` - - \ - _ _ _ _ -' - - - - _ _ \ \ \ B/M STABILIZED WITH STABILIZATION 3.36 BLANKET PS MU Ps �' \ \ _ -\ \ 'VIRGIN IA EROSION AND SEDIMENT CONTROL HAND800K" SPECIFICATION NUMBER as �F a 7 O z O f i z O 1 u u w 0 DATE 51612019 DRAWN BY Z. DAHL DESIGNED BY A. ALLISON CHECKED BY 1. HASH SCALE 1"=30' M LLI Ln Q a z Q a J O z O U z LLI LLI z O_ U7 O Lu ]OB NO. 43266 C3.8 L Section 5. Stormwater Management Plan (Provide a reduced 11x17 copy of the latest stormwater management plan. Do not reference only.) 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DAHL 560'DESIGNED B�d��H V A. ALLISON CHECKED BY 4.2 0.40 0.90 1 SCALE ____________501 1"30' -- ------ p /hIL 811 60 ana$gam 9 c 606/60.570 heO 4.931 Z 316 810 -'- - -' — — — - — - - -77-<.f i/ u Lu @20.W40100 317 61 306 LUI I 5 -- 5'. 0.8 .z 574 -----' -----170.41 DG580 2. 'E 125.0040, R580 __________---- SAN --------w\-5em$�E_�_ 'o�zs2ii5y a _-N22°50'S5 E 42�.96' _ - - _ _ _ _ _ _ _v �� \`C22\��_ -T, Np0 g3 jj� 77 SCALE 1 "=30' ]oB NO,MR m ,$ STORM/NLETW -" I ~I r� \/_ r / r r 0 30' 60' 43266 2.5'X 2.5' r r r _ _ _ _ r W SHEET NO. c8_ TOP ELEV.=572.56• INV. OUT=569. 16' 18"RCP v�i I I r I _ _ _ _ C6. 0 gE L 11 LOAD PFkCMCT' WR ENXWPP.SB FG4.1H RE191EaJrATEfR EK19Pf1A6 Lti9ga6 q: 'A MASEE ROUTE PROJECT UVA ENCOMPASS HEALTH REHABILITATION HOSPITAL DESIGNER: A. MABEE DATE 1211712019 37MM SEWER 10ESE9N CONFUTATIDN6 VO ll[s+ N EILIfaE. 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A1<,d,R,. 0.1W0 OOIW 2000 2 0.10I1 ; IS% Wcir Flow 310 D41 211W 611iT QOI+3 Mck/Lt. BfgURIGH 215n OQ12i McWLt_ 0068 4 11272 0 Mc 1 64 0 0 Aheod/RI_ 02]2 UU100 2n(x1 _ p.2]). 1.16E N Flo�l i316 DI -I I?W _ i 001b � R ULt. IIINNI'RIGHI .6.. Mak/lx. 0.106 1424 II&L,. IIII h dlRl ¢(II W 1 4-1.4 '402 DI-1 211W 11.(116 raNNYRIGH 02A 13 00114 McWLt. (4086 4 0344 0 McW4_ (1 4 1) 0 AlieaJ/RI_ . f13H OOIW 2Wo 2 0.34E 111) Weir Flow �(A6 DI -I I11W 990 00225 MCW1 anfkMRlGlii 0069 0,2415 Ma1JU 1,M> 4 o_I8R Ma1JIx. Ahead/RI -- IN P -Flow .-I I.I. 002i (iel )1)P (LOBn'RIGH 1(6 002415 McWI 0 4 1) U Alizad/RI_ ILi88 YH)' IOIX1 I 0_I88 14111 1 Fl., 1616 DI -I I11W 0025 ­1 tI 25 MCW1 IM-IGH I)1169 11 (1U413 MCW1 0,(4] 4 n_ItU (I M A U -- 4 - 0 n I 1. a - - - _ _ -I - 15d/Rt. _ Drl ISiW - RnL� - MoA/D. OINp'RIGH[ 01)49 L@41± MCA 4x. MCARt. (1 4 0 0 A—_ 0_Is8 4WIW IfNH1 0.188 1401 T�80fi iR03 DI _�B RJ1W O. WO 0.90 0.13E O'RIGHT O.b30 0.3S I1.0105 0137 4 R548 0 0_548 U0283 00208 I89N 2na1 10. 4I OU833 4004A1 IOW 350 0.145N 0.16(b 5835 AfpO 1373 ­0­1OIXIO 1898 DI �B (x1 3 19N O'RtGHI' [(,23 1) 11 111(t ff_! )02(N _468 21Nx1 05367 00833 4(104N1 no]> � (11 11L121 F9 31 101 002( i NIB) 2.36E �RM DI -I 20W INO IAi16i Mck/13. 0a10'RIGHT OW, 4 0252 0 MCWD. (1 4 0 0 A1,11d/1I. 0.22 11.W1 2(YJO z LSd 1.10E T,YOlt e a8 > E ai E I-� N3 u � w O m3 W W a J`um z R � O O a U V 3o1'nLL In jj oar o00 iu> o n LUh S 7 C DATE K 5/6/2019 0 DIuwN BY Z. DAHL • DESIGNED BV • A. ALLISON • CHECKED BY • HASH SCALE N/A � J Q I..L V) O V Z C O O G J a HMI W j Q - 2 � G L�u/ Z 1� O U 0. W a LL H JW m L Q Q H z w a 2 F G O � i a ° O V U Z W NO, 4326E SHEET NO. C6.1 E `m L WATER QUANTITY -ANALYSIS POINT 1 Q �v����v� `II IIII IIIII IIIIvIIII II��IIIIIIIIv`IIIII�IIPI�, %r�l/'/'T,"_�%i%%i�� �-�_�_�� ��y ������`' �`•���i•��v�C�� �e DRAINAGE AREA ANALYSIS (PRE -DEVELOPMENT) I \`A\`AI111 I I AREA#1 . 1 IIPRE-DEVELOPED Ill !IIII IIIIII IIIIIIIIIIIIOI IIIIII Li%i!�''�:1AAREA=19.29ACRES :i-;l'I�lll/l li�l�t I / / //'i _/,/l I,I1,I //,4y����lv�01 nl_ _���t�vCN=55 \\"Tc=12 MIN SCALE I"=100' frry_ 1\i111 \ /'�% __-i //ii�'a%j' 1 /' v ''%,'V h��S'. / ,-'� v Si �__='_��� _ _ 0 100' 200' ` ,1 i114% _ /_, ,/ II_�(CFS) 'i'I VAC -FT I,'\ 1 YEAR 1.46 0.298 10 YEAR 29.08 ', III��1 XV1- _ \ DRAINAGE AREA ANALYSIS (POST -DEVELOPMENT) '/ ^'c ENCOMPASS REHAB PROJECT FUTURE DEVELOPMENT#2 (TO INCLUDE FUTURE BUILDING EXPANSION OF (ASSUME 75% IMPERVIOUS, DETAINED -DRY POND) I / _ /' ' ,___'_- -_ \�\`\�\\\�� `_-_�\'• i��/�//__\'\ ,\\\\ III' /'i`,a - - V vv t __vvv �w _-- __ _ V v` vv v v II 1 II I , _ _ Avvv �' - _ \ ` ' ,U10-� \l/ \\ \ IIII \, �, \` v / - >�� '- srr 0 - - ' �� i' , ` v 1 /a, l v >E v E 5,550 SF, DETAINED -DRY POND AREA=4.44 ACRES , -� _ _ ,mil , V _ _ _ _ _ v , v 1, { _ "'\� \\ \ ' _- '' j's;%/'�i �� -�_�- 560 `\� \�`` _;\��\,`'-' '` �- -�j, -_ 11, \ '�/i_ / � , . - ' - - l >._.a \ So ``sue \ 4 ,I). ` \ \ \ 1 1 1 ' \ Ill III \ � 1 \ /' �%/ t_ ���3 AREA =8.12 AC IMPERVIOUS = 3.33 AC IMPERVIOUS=4.62 AC MAN AGEDTURF =1.11 AC \ �11", I3.50ACTc=6MIN1Tc=6MIN v v (CFS) V(AGFT) ,, ,v�v111 1v____IIO \ �i/llllll111/__ __ ,,,/_-___='__ I111- \\\\\\\\\\\`�a.1\i/'/ /'/� I\II\1`: __�___�- \ \ �` �_ IIII Avg -98ry 600 OV O CFS VAC -FT 1 YEAR 14.11 0.695 �� �� 1 YEAR 18.98 0.916 10 YEAR 30.06 1.547 1. , / / / I _ - - - _ - - - \ - - - - \ \` \ _ _ - - \ vv,v _ _ ' II I - -570- m vvAv �, v,v V` i \ ,__ _ \\,\` �`\\ I'I` •'�Fi.. / _ ` \I`\ _ \\ - �',____ k.,e u �� 10YEAR 47.22 2,331 DRY PO N O AREA DRAINAGE AREA#4 AREA ACRES (ONSITE, UNDETAINED) IMPERVIOUS=O.00AC v vvvvI 11 /' \ I / ' 1 1 \ l "L ' \` _ - • . 5 580 - ` ` _ _ - ` `-) \ \ \ \ 11 IIII 111 \ _ _ _ _ _ _ ` 1 ' /rl Ilr A A, __- ----'_--_ vvv,u�lnlll_ _//,'/,�i /�--V,�-Avv ��_-= v�vvvvAvv�_ ,�--v 1 1 ��' I I _ 5 ``�_ _-___ v -' ' -- _ -_ - �� vv �-a _�N.q \ - ___ - I1�11111111 II � �a%/ ' v VA AAA. �( `A �A )A`- ---__,_ "l' / y-� v I " y ' ' /'_ f'"t `�-_____-__ l II !'� 5� ` �_ `\vvvv _ ` A `:� l '�'- __-_ 'Iq "I ;pax oar 5! 22 000 o R'K WW AREA =0.27 AC MAN AGEDTURF=1.50AC IMPERVIOUS=0.00 AC Tc=6MIN MANAGEDTURF=0.27 AC / / 1� vI i / �_59_"/(' -575.�� v I�I 1 lylrl �55'�''' - A ` _ ` v v v, c / / / / / / '' o' I u ., , '� \ , _ _ - 1. \%\ ,I�\p� _ (�✓_'F, \\, I\/ J' _ ,_ �\/r"�__/_ .1 \\\ II II II III '/i - _� ,\ \�_ _ �\` \ s\ys� \\\ ~\ \� �/ v v ',�`1` A „ r v `V PRE DEVELOPED AREA #1 1 JAI III . _ _ _ `�` ` i \ �\�� '�I 6rei ti �» ti Tc=8.3 MIN Q(CFS) V(AC-FT) 1 YEAR 0.s7 0.044 O CFS VAC -FT 10 YEAR 4.16 0.202 1YEAR ioo 0.08 \ \ \\ _'� Yi_ 1 \\ _ �� IIII III ./ii/�'i��'_' '//--�� �\ .\\`�\\� ,'1 - - - / �� ` v , A v _ _ _ a , ,' ,' = _ TOTAL AREA - 19.29 AC I 1 ,'�,' ° CN:55 570, v v v`vv _ T �v`,`,v \ �1 \ \TC12MIN 10 YEAR 0.69 0.036 FUTURE DEVELOPMENT#1 DRY POND _ �Jv ��,;'; _-� % ''('\ ,r\` ,,_1. \ �J-�, /1?h\'mod:, _` \-`y�,�IIIII II II%,!'/ / '0: Z - _ - \-`` �, �`- ,\� \`i!%: _--' l ,\II `�I' �\\ �' t _I �\ _ _ I ' �' 7590. •-J_� I `sB6•� % t, 1J'I'III BS `__ \�, ` �\ \ I li l v\Ln� - I 11 IIII 1 1 i 7 \ --\-' ` ' �) ' ' - - I III _ i� s (ASSUME 70% IMPERVIOUS, DETAINED -DRY POND) O (CFS) AREA =4.95 ACRES 1YEAR 0.06 __-- + - 1 I' ,' - ( , I 1 IMPERVIOUS = 3.465 AC 10 YEAR 26.18585_ 1 , \ -_ _ _ __. 1 IV ' / MANAGEDTURF=1.485 AC Tc=6MIN ANALYSIS POINT( / 1 A / _�� A . , ` , v 1 I - _ _ --------___----___ _ _, \\ , , ,�� r 1 1 v ` ` .. - _ _ _ 1 / si .-.. 580\\ o ,I - o (CFS) v (AC-FT)a� -580�- _ _ I 1 I I I / , _ _-,__ II III IIII , , , ____ ,// ' Q N n 1YEAR 14.47 0.706 1YEAR 0.15 10 YEAR 32.14 1.630 10 YEAR 26.43 , 4 �„ - _v,r,� ��_ ___ - _ _ 570 --�_ A`�v vv vvvv\vIII ,{1 IIIII it / r ( /-"/ / „/ /,�^/ ///' "/ %-- A� 11 III II III II / % / / ",r `�' ` ` - ' ' 575- - - - '� l /,/ I Ihl 1I I (/ t zo DATE _ , \ l'j"�"/'; l/I IIIIIII(\ t\\ \\ 1 I I ll 11 N 11 580_ I / _ ` \ \ \ II I / , I I„IIII\11�,,\\11,1111''l II 14 :' - ' / , / I - - \ \ \ \ , I l l l s 5/6/2019 CHANNEL PROTECTION (ENERGY BALANCE): -� \ I � I 1 I I 4, III I Iq DRAwN aV Z. DAHL �EVELDeED50.80'(QpaE-DevE�ovEo RVvne-oe/eLoaeouRVoevELoveo It,141\A\\\�II\ l I I II'l///// "l�/, l'// ,'' ✓ I III\\ \ `�\, �`J� ll� \\ IIIIIII , 1 I �'/ ' l , // 1, 1,/llll ',%�i%�'� l,Illtlll\1t l\ Ii1/I I ^11/ ,' I l// l \ \ \l s 0.80' 1.46 CFS'0.298 AC -FT / 2.369 AC -FT ( )( ) = 0.15 CFS _ _ _� , r / III\ III( /{\ {�\\ I, ) \- II �\ \o, \ _ I 1 I l /,/I,I I ( ( /i i//%////i/ / /i /,' I it \ II IIII //' \\\ \ \ \ \ �„\ \ I / _ 1 l l \\\ III I \ _ 1 /„' ' / / ¢/ ? i / / I ` / \\ / I4 v • DESIGNED BY _ - /A. ALLISON OK 0.15 CFS <_0.15 CFS\\�� \\ t /Ir VA 111 VA A /I\� -_ _ ' //,//,%'�'/„'i'✓%i ii/ / /,_/,' i I \ \\ \\ Shy \ I��_ / • CHECKED BY FLOOD PROTECTION: _-____ - I I II\\ \ \`\\\ `\� \ -_ ___�`��_ �'_\ �\\ _ _\ _ III �_ � \`` /'/,' /, //� /, // ,,////,'/, /�'�'� \ I\ I I I \\ \\\\\,\�� _ __ =_� _�____�_- '^�,�__ 1! __-_ ____-'L_= --\ �I��; \/� ___' ____ \�-"/ '/\\),'/' /'//%�� )'/��///, ///'/ / l/ / �� ' /'' /� • J. HASH I /\11 I �'/''� /_ ii '�'i �i • • SCALE POST -DEVELOPED Q 5 PRE -DEVELOPED Q m m 1 / ' ' �'//.=100' 0PRE-DEVELOPED' f �\ OK 26.43 CFS (POST -DEVELOPED O,a) 5 29.08 CFS (PRE -DEVELOPED Q,oI - - - - _ _ _ • `,\ \ \ I 1 IIII I I r1 I 1 IIII II III III l; l o,' � � ' T ; =- _ � - _C - - - - _ � \V A A I I I I I I V A I I IIIII II IAI I l it ii% � �� _� ? -�A:A` ANALYSIS III�V,- `V I V` \ POINT1 AA 60" RISER WITH TRASH RACK SEE DETAIL BELOW ( ) 083 \ \�1AIII�IIII Ill vv11 IIII IIIII111111 ,11]lpll �'/' , ` v 1 I NP I 111�1 IIII III IIIII141IJII pll�ll I TOP: 532.50' TOP ELEV: 540.00 SCALE("=100' 1 , / / ':ice-_=�_%//. l/'/III I1 IIII/" ,i//✓l /iFA, -,_ ��' , 1wv _ v ,r w 57��- 3EQTQ-__ --------------- 1 VRW E: 7.6 _---_-- 0 160' 200' I t S710-YRWSE_:533.1a '�'7 DR POND AREA 5so_ __''jam `vw� .`,` DRAINAGE AREAiWj„r�� \ TOTAL: 1.50 AC z -4RTN8E: _� / _;_ TOTAL: 0.27 AC :5?5_ _ -- _ / IMPERVIOUS:0.00 C -- \ \ `I� n, IMPERVIOUS:0.00AC ;-�-�- .,- \ -5 \` �I I MANAGED TURF: MANAGEDTURF:0.27AC' \ - \\4/ - III Z 1"DIA. ORIFICE \\\\ ,' __ ` // / /� / _ _ -_?1+` �\��� w0- \\•'//' - -_ lull'ilI \\ ;_"___; \�..'�' 526.00 21"HDPE \ �\ � \ -, •\ `\\\\ / ,' _ _\ � ,-_ �/��' � y1f/;-��g1"9: =-s'�, :\-��\\\\ \� �\\"� -, ,// 5 is - /I I\\ -= =-� y-`'''' ,__ Lu % �vvil�ll,� Iv__vvA ' �I ���/r/,Ilrl\�'�\\ \\iIII11111'I��IL-= '/ ���`\�\ Lu O Lu Z DRY POND SECTION NO SCALE TRASH RACK j Q merFUTURE - TOP 1` ^ _ ), v i-`.'„ (` .' - I1, 1., ../.1., 1 / ,; " _ DEVELOPMENT #2 _ - - ( / ,� V `` AVv r ` - 1 I "/'' �ASSUME75%IMPERVIOUS -' ` ` ` w _ rvarvmrv.a ELEV. 532.50 _ ,,,/ , vA .ENCOMPASS REHAB PROJECT - .`.` - .� FUTURE DEVELOPMENT#1 �\ _ �- .. _ Avv� _ /I ` i �� _ _ ' ` ,A"`. ASSUME 70%IMPERVIOUS \ ;%' TOTAL: 8.12 AC - - - TOTAL: 4.44 AC �`- - +1.OACFORFUTURE V� v` -� _ hI-__zIMPERVI0US 4.62AC/',y 570,E IMPERVIOUS: ;. ` ``v v _ - GRADING FLEXIBILITY �` A �O (, / '' _ _, ' PERVIOUS: 1.11 AC _ v v v MANAGED TURF: 3.50 AC , �/ ;� ` v`, ` v m Q Lu W Q 60"DIAMETER v,^TOTAL:4.95ACA��` IMPERVIOUS: 3.465 AC v 4 v 2 / / 1 / 1 u III I _ I ' / / / �� I�� I ''Intl III n, 575-�`vAv,``vov�v`` we m..l RISER _PERVIOUS1.485AC \ l/„ '�% VI a en¢mmarommasn a-n /I l■� ��, II\ II / S $ -� _ --. - ___----��-��� /J� ism`,\\\`�,. I, 11 ,/„11,,, i��:i I_ 580 ' `` \ //' LL z .0 wmuxs a maw aautN uus• m xor mao :avar ve> urta rrxrannx. ,' A ,' , ' , � I I I t P(/ /„ //, / . _ - - -� �S ` oRROW . - _ - _ � - 580 _ - _ _ _ �_ - � .` � \ \ \� \ ` \ \ \ \ I I I I I I I I IIII �%. � � ' , r./ / ►'�1 I / _ __ __ _ -__ \ \ . `\ \1\t \I III / / _ - _ _ _ - I III U I II I il"DIAMETER�/ WITH TRASH .. �..� ��,ORIFICE ' / / - a _ \ - 1 - -- ' l r i / - ` \ ' \ /l lI.'// / / .'I __ 4i1 9jI _al,l a \ % /I ,..I .l, \` -�/ I / l y� t\\ \ \ I �\ 11 II IIII I, ll/ l/ l l% �11 II II IIII I�\,I\I, II/I/%/I�' E17 / / / /, I II �,�1,IIIII' w ce ELEV. 526.00� /_..�.D I - I _� l / , II ' I '/ I'I / --- ORIFICE TRASH RACK DETAIL DRY POND RISER STRUCTURE 110 DETAIL DETAIL TAKEN FROM MONTGOMERV COUNTY, MD WATER RESOURCES SPECIFICATIONS NO SCALE- v/l `I_ ` Vt -- _ • A'�`_'-�/, ;;�A� '/'/j/„ / // / r '/,'!'�, �l,'!��� /% I 11- . INNOYA)/6NOFlVE - 'POST -DEVELOPED i e tO cao g�m0 �oN z_p mN�� o�u�iz0 Ny�Z N10ZZ Mpg>9 I` m�mmF cs z_ z_ 0 � ry.2zzz F F mom n m+Nn n p�urizp z 0= �r0» �r0 > wwt-99 amt-zz N = N ry o 'oF Nmr O�NZZp ��unizzp N y� Z Z Z N y 0 Z Z Z F 208: DI-3C 8 fl Throat m STA 10+00.00 m n o�ow TOP 571.51 O> INV IN 560.20 (301) INV IN 564.50(401) o r O» > INV IN 560.19 (209) N rn F Z Z Z Z INV OUT 559.15 (207) / 1 590 1 590 585 \ 1 585 580 580 \ EXIST. GRADE 575 GRADE 575 \ 570 570 4"DC MESTIC WA ERLINE 565 223 53.41' OF 221 219 24" HOPE 75.88'OF 132.1VOF @ 1.54% 24" HDPE 24" HDPE @ 1.50% @ 1.50% 5600 215 560 217 213 \ 39.93' OF 52.74' OF 199.00' OF 211 \ 209 24" HDPE 30" HDPE 30" HDPE 156.36' OF 171.28' OF @ 0.75% @ 0.76 % @ 0.50% 36"HDPE 0.62 / \ 36"HDPE 555 @ @ 0.50 555 \\ 550 550 \ 545 � 545 540 .0 S is g 0 o O» N mFzz x t ro -yOZZ z 0 $,OZZ 5 ^ O o a f0 n N N 0 50 g w - n = x PROFILE SCALE m ozo ooMe3 cnF oho N y�ZZ WH> $yOZZ 66 �yRzz �+.0z 570 570 565 565 560 560 EXISTING 12" PVC SANITARY F IPE 555 207 555 15.9T OF 36" HOPE @ 8.00% / \ EXIST. / \ GRADE 550 Z 550 STEP DOWN \ STRUCTURE \ ^ ITH i' STEEL \ / — PLATE .5 205 1.5' 545 19.22' OF MIN. 36" HDPE @ 7.00% 54a sao STEP DOWN203 STRUCTUR WITH q" STEEL 16.60'03 199 PROP. PLATE36 HDPE 66.18' OF GRADE @ 7.00% 36" HDPE 535 2.00% 535 201 53.36' OF 197 36" HDPE 81.84' OF @ 2 69% 36" HDPE @ 6.79 530 530 195 31.23' OF 36' HDPE @ 12.94% 525 S. 9+50 10+00 11+00 12+00 13+00 14+00 15+00 16+00 17+00 18+00 19+00 19+50 9+50 10+00 11+00 12+00 13+00 13+50 STORM: FUTURE DEV. - STR 208 STORM: STR 208 --DRY POND pHORIZ SCALE: VERT SCALE: 1"=5 VERT SCALE: V=5 e a E > E ai E w O m W W a J`um z Eg o O O a U V 3o v'i ix 22 oar o00 iu> o z WW O s o �a 0 DATE 51612019 0 � DaAwN BY Z. DAHL • DESIGNED BY • A. ALLISON • CHECKED BY — SCALE ASSHOWN � J ILICI O O t O � � L— E I --I in m Lu = LL LU _ Ce �CWa_ J m0 Q Z Q E Ln rc! O < a a O V w - E� JOB NO. Ji $! 43266 SHEET NO. - C7.1 L i Y � E ` zwa tc 6m+aizr= m ` �o � '' n p p O gr TA 14,22.13 z=O TOP 487.00 o S� 'ZI �macast 110 oi `Z � T m� �mm P O_ -woz -NQ INVIN484.00) NO 0z F >z ? 061Q0 »>or0zz - F ZZZZ m/FO OZZZ .. 545 .5 540 540 \ 535 535 PROP. \ GRADE \ (DRY \ 530 POND) 530 \ 525 525 \ 520 520 \ EXIST. GRADE 109 \ 90.20'OF 21"HDPE 515 @ 4.31% \ 515 \ 510 1 107 \ 5,0 102AT OF 21" HDPE \ @ 9.00 % \ \ 505 \ 505 \ 500 105-' 500 126.30' OF \ 21" HDPE \ 495 @ 10.00% 495 \ 490 490 103 \ 79.21' OF 21" HDPE \ 485 @ 9.13 % 485 '7 480 480 ,01 16.96' OF 30" HDPE @ 1.00% 475 475 PROP. 575 GRADE 575 570 570 4" DOI AESTIC 565 PPI WATE LINE 565 401 74.15' OF 12" HDPE @ 2.56 % 560 560 555 555 EXIST. 550 GRADE 550 545 545 540 540 s+So+11+So M: STR 402 - STR 208 STORM: HORIZ SCALE: 1"=50' VERT SCALE: 1 "=5 PROP. 575 GRADE 175 570 1 570 1.5' MIN. DOMESTIC WATERLINE 565 501 565 46.66 OF \ 8"HDPE @ 5.70% EXIST. 560 GRADE 560 9-50 10+00 11-00 STORM: STR 502 - STR 210 HORIZ SCALE: 1"=50' VERT SCALE: 1"=5 @ O M @ p E �o z� E +o O +nZ °Z>�o>o mmolZZ 5 0 0 50 PROFILE SCALE n m e m w 1 F Z_Zp 'Fp :0 $m0zzz E m E E m E E o 0 A N O r m�aF.7 ocNNo �om zC6, a01- -Zp '_�_f O o o > 8z eno>>¢'> y�.rzz ZZZ 580 580 PROP. GRADE / 575 � EXIST. 575 GRADE / 570 570 565 611 565 71.25' OF 609 12" HDPE 154.22, OF @ 1.00% 12" HDPE @ 1.00 % 560 560 580 \ 580 \ PORTION OF BUILDING PROP. EXIST. 575 GRADE GRADE 575 \ 570 \ 570 565 607 55.67' OF 605 603 801 , 8"HDPE 28.58'OF 91.08'OF 42.83'OF @ 1.00% 15" DIP 15" HDPE 12" HDPE 560 @ 1.00% @ 1.00% @ 3.00 % 560 11+00 9+50 10+00 00 STORM: DRY POND - STR 100 4+00 15+00 sa so o+ooSTORM: STR 612 - STR 606 z+oo 12+50 s+so ,o+ooSTORM: STR 608 - STR 21212+0o z+so HORIZ SCALE: 1"=50' HORIZ SCALE: V=50' HORIZ SCALE: 1"=50' VERT SCALE: 1"=5 VERT SCALE: 1"=5 VERT SCALE: 1"=5 e a8 > E w E w O m W W a J`um z Eg � O O a U V oar o00 iu> o z ww mF zo: O iD 0 s F 0 DATE 51612019 0 � DaAwN BY Z. DAHL • DESIGNED BY • A. ALLISON • CHECKED BY 7. HASH • • SCALE ASSHOWN � J ILI^�Q V O _ O OQ 2 F-I c j LU = J WLL O �CWa_ J JwO�� m ZLu Q VI E2 °c = E� U) of O D. a D �a � =v OB w ,s mo JOB Ea �a NO, m,$ 43266 =� SHEET NO. 10 8 C7.2 -' E L i 0 y E o >om�� wo +'..z o��F c^z� '"ra0>O> � 2N`n� o�ap �F0;:> ^z� o�inz0 `cFozZ $r0 myrzzz >> mmt -ZZ Mt�FzZ co'..-- p1nN u1 �vul��oin o;t�zp z zzp Z Z Z Z Z Z y N y 0 EXIST. GRADE / \ 575 PROP. \ 575 GRADE \ \ 570 4" DOMESTI 3.5 MIN \ 570 WATERLINE 3.5' MIN. / / \ / 4" DOM 1' MIN. WATER STIC INE \ 565 I \ 565 \ 309 \ I 116.50' OF 18"DPE 560 al 00% 560 307 105.01' OF 102.35' OF 303 \ 301 18" HDPE 1@ \ 65.47' OF @ 1.00% 1.00% 152.49' OF \ 24" HDPE 555 18" HDPE @ 1.00% \ @ 1.00% 555 550 \ 5. 545 545 9+50 10+00 11+00 12+00 13+00 14+00 STORM: STIR 310 - STIR 208 HORIZ SCALE: 1 "=50' VERT SCALE: 1"=5 ¢ao 8�0 EXIST. \ GRADE 575 \ 575 PROP. GRADE 570 570 565 565 703 30.75' OF TIE TO 6' HDPE 701 PIPE 213 30.15' OF 6" HDPE 560 @ 9.50% 560 555 555 9 50STORM: STR 704 - PIPE'1+00 213,+59 HORIZ SCALE: V=50' VERT SCALE: 1"=5 E �mcm+i o - +o v�^iz0 m`+omu`°iNw Dew r Z_Z_0 TIE TO PROPOSED -g oo> > oF0»> DOWNSPOUT °'�- iw0zi m zz (SEE ARCH/MEP PLANS) PROP. GRADE 570 570 317 / / 64.43' OF 6" HDPE 565 @ 4.00% 565 315 99.43' OF 12" HDPE 560 @ 1.04 % 560 EXIST. GRADE 555 555 15+00 16+00 9+50 10+00 11+00 12+00 STORM: STIR 318 - STIR 304 HORIZ SCALE: 1"=50' VERT SCALE: 1"=5 c� o E V �mO z0 _ N. ^� U� m 4IHz wtD F?> �roV Qz e6y�ZZ / 585 585 EXIST. 580 GRADE 580 PROP. 575 GRADE 575 -A 570 TIE TO PIPE 805 565 565 811 809 77.48' OF 51.12' OF 12" HDPE 12" HDPE @2.00% @4.90% 560 560 9+50 10+00 11+00 12+00 12+50 STORM: STIR 812 - PIPE 805 HORIZ SCALE: 1 "=50' VERT SCALE: 1"=5 5 2 0 0 mom 0 50 o N PROFILE SCALE F o v^ z 0 ... Z z IE F w 6 mnnvv pv�^nz z p O 6 '>>> SUK>9 Nv RZZz mNFz Z / 585 EXIST. GRADE 580 580 PROP. 575 GRADE 575 570 570 EXISTING 6" PVC SANITARY PIPE 1.5' MIN. tzzz 565 565 807 Tr 71.05' OF 805 803 801 6" HDPE 132.78' OF 14.62' OF 54.65' OF @ 4.00% 12" HDPE 18" HDPE 18" HDPE 560 @ 0.75 % @ 0.75 % @ 0.75% 560 9+50 10+00 11+00 12+00 13+00 13+50 STORM: STIR 808 - STIR 218 HORIZ SCALE: 1 "=50' VERT SCALE: 1 "=5 e a E > E ai E ¢LLi; 3 w O m W W a J`um z Eg O O O a U V z � a � 3ov'iLL � >j oar o00 iu> o z WW O s F 0 DATE 51612019 0 � DaAwN BY Z. DAHL • DESIGNED BY • A. ALLISON • CHECKED BY 7. HASH • • SCALE AS SHOWN � J 15 IL ICI O O 3 O r E I --I in C j W = > J LL V _ ce �CWa_ J JwO� m L ZLu QVI E FF = E� U) p: O Q a" a �P C �a GO 2 Lu / a Et m ,£ 43266 SHEET NO. w £ C7.3.E L 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 I Ix17 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 // /'� /�//" q - - � i/i� - i •- � � \mil / - 530 - _�� _5j60� 4L I off / / / / // / / - ' EPM 570- - - :515„580,._=- - \�` \ \y�A _ / 0� _59CY\\\�\ //C\ 4JJ /rillll /// =59 111/I�IJ[It/I/III111 0\\\\\Il�llllll�yllllll/,/ ////-r` \ - ' CONSTRUCTION / ` \ — — \ I I TRAILER �N� �� v \ 80 \ \ \ I 1 I 1 11 1111 1 / h�0 570. \ � ----- I 111 1 111 11 �•Wy / / // /� / /// / --1 / PROPOSED CONSTRUCTION ABOVE GROUND FUEL CONTAINER / WITH IMPERMEABLE HEAVY -MIL ENTRANCE \R h i / LINER. VOLUME SUFFICIENT TO � G. /' / / / , CONTAIN STORED FUELED SCp` VOLUME + 10% (GAS/DEISEL s \ (WIRE ENE ' TEMPORARY \ TOILETS r/1�� CONCRETE WASHOUT r r MORTAR MIXING STATION -_-U1V1VERS'�7Y-4 FD'IRGMA_ - --------- - - 58o- - _ _---,_D-B-27 IPG.326\ DUMPSTER 580 _ _ 1 / / / / - -_ _ _ \ - _ - -D.9 -t684 PGA 25`5, 585— 575�//—nT/l\\wp \ \\\\ \ \ 1 \ UVA ENCOMPASS HEALTH REHABILITATION HOSPITAL POLLUTION PREVENTION PLAN - PHASE 1 12/17/19 SCALE 1 "=80' o� 0 80' 160' TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. 1 /I110 1K/l J/ IIII/I oe i / / / i _ _ _ // / / / / // �/ -- _ _ / / -53_0- yla�.Ja2 7i4= A73/l / / �� / / — \ _ — — �\ \ \ _aweee \ \ \ \ \ \ ,•YI" / / /i ' — \ \ _ \ \ \ ` , I 1 \ / / / / // 'i � '/ � / _ — ���\\ \ �\ \ S � \ \ �• / / ' \ \ 1 \ I III I —560, -- 1 � \ \�\\\\�\\SQS\ ��� \�\� /(��/'// /� —� 53 2, 66 �/go',�F� 580'-- _==::��\ \\ \\ \7\\ \ \ \ ,\11�1111 1►\\ \,— / ,- \ \ \\ Y\\__—_—/ �� \ \ \ , III► IIIII I �- —_ � /� �i I , \\ \_,\\ —__�—___-- \�\ \ / \ \_ \\ \ i \ \ \ \ --- \ \ III I III 11 I II / / /G�6/// 'i � i \ ,• �_/ \ \_,__ I CONSTRUCTION \ I 1 1I 1 \ TRAILER \_�— / _ ti`\\ 8� \ \ \ I IIII IIIII 11,\ 1"�/ / // /!�0/ / ,- 570.` >o _ / / PROPOSED — — _I /\ « \ \ \ \ ^ \ 1 1 \ III 1 I 1 I / / / CONSTRUCTION / / (BOVE/GROUND FUEL CONTAINER \ \ 1 1 \ 1 \ — — / / / WIT M PERMEABLE HEAVY -MIL — / ENTRANCE JLINf . VOLUME SUFFICIENT TO CONTAIN STORED FUELED / / \ \ _ /JX/OLUME + 10 /o (GAS/DEISEL \ \ \ \ / / / / I I 1 I I IIII I I I I / / / / I f / 'TEMPORARY / / t i = _/ _ \ \� / 1 1 II I I I .// // 1 I I I // , rR TOILETS r/1r�-eNETE WASHOUT // \"`\ L.._j -- _— MORTAR MIXING STATION _ — _ — — 'i v °%825�"E 655.78' r / / /, //' l I l / I I ► I I / i / / / , , 4J/ '/ — / — — _ _ = _ _ _ — TNI�#.3� 6f_ A =Ldi'I I %/ / / / I / / 5 2 — — _ REAL E5TlA7E QU%�D.4Zl01N \ \ \ \ \ \ \ \ 580 _D e-2;9PG. 325 \ \ \ \ \ cry \LOOP\/ OAQ DUMPSTER _ — — — — — —_ — — — / / — — — — — — — _D.B. '1'684 PC, 255\ \ \ \ \ \ O V u — — W _ _ \ / 'A _ \ ` l I POND/72gp dr— \ cSj\\\KxA\57 /'9' fl 575� sEex�Avszo//�� 11 / l 'r 1/\ \\ \\ \00\\ \\\\ \ \ \ _u UVA ENCOMPASS HEALTH REHABILITATION HOSPITAL SCALE V=80' 04� POLLUTION PREVENTION PLAN - PHASE 2 12/17/19 o 80' 160' T I M M O N S GROUP YOUR VISION ACHIEVED THROUGH OURS. / / �/ / / / / / / I I 1 1 \ I ►II I Illl II II / /�—'// ///////i/ // i' /—_ � \� � >\ \ \\ I 1 //// /II ►IJ►I,J►I,I► //_ _'//// //// // l \ \ \ —\ t \� \- / / / / / / / / / I 1 _ _ l/ /// \ Irjr / / // / / // �////�/ fi//i / � c \ -ate � // _ •�i �___ � /%,/ � � l \ I / 0� / 1/ o% _ v60- // `� /(� / / • / — — — ' _ — _ �5 � \\\\ \ � \ \ \\ \ � \ � _ �n \ W / / / '/ / ! — ti \ \ \ \ \ III � I / IN \ I l N. 575 580 O�U— \/_\`\ �j�� I \ \\ -- — —— \\\ `` 11/ III IIIII/ / /� �j _ \ \ 11 I 5 /I / / /����'''i"� 9 �c g•I cS�\ \ \\�— �� \\11�1111/ll/// I/ �/ /, // / /� I��I // �\ \—\ \ � 1 \ \ \\\\�-- _—\�\� \ I / •�: � CONSTRUCTION TRAILER _ \ — / I / PROPOSED CONSTRUCTION ABOVE GROUND FUEL CONTAINER TEMPORA\ \ \ \ _ A ENTRANCE I / WITH IMPERMEABLE HEAVY -MIL \ \ \ RY I �h I 1, 134 / // � — -• � \ \ — l� l l l l / �i `/ // � � II , � � I � \ � \ � \ \ \ \ � — _ _ _ — — \\ \ 570 1I _ / LINER. VOLUME SUFFICIENT TO TOILETS CONTAIN STORED FUELED VOLUME + 10% (GAS/DEISEL CONCRETE WASHOUT MORTAR MIXING STATION \ \ \ \-� _--_- 580— �`� LflZ9P\f�0/ - x DUMPSTER~�-m- — — — — — — _ _ _ _ y / / /� — — \\ _ 580 \PIA s5------------- - - - - -\ UVA ENCOMPASS HEALTH REHABILITATION HOSPITAL POLLUTION PREVENTION PLAN - PHASE 3 12/17/19 SCALE 1 "=80' o� 0 80' 160' TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. u. hources of ronutants. locations. ana Pollutant, or Pollutant Location on site Prevention Practices, Generating Activity Control Measures C. Sources of Pollutants continued. Common activities and minimum control and prevention practices Pollutant, or Pollutant Location on site Prevention Practices, Generating Activity 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 pans Paving operations Roads and driveways and absorbent/oil dry for all paving machines to limit leaks ands ills Concrete washout shall occur in area Direct concrete wash water into a leak - Concrete washout and adjacent to the construction entrance as proof container or leak -proof settling basin cement waste designated on the Pollution Prevention that is designed so that no overflows can Plan. 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 coruounds. Dewatering if necessary when Water shall be filtered, settled or similarly Dewatering operations converting culvert inlet protection treated prior to discharge as shown on shown on plans plan, Designated areas for material delivery and Material delivery and storage Adjacent to construction entrance and storage. Placed near construction construction trailer. entrances, away from waterways and drainage paths Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Pollutant, or Pollutant Location on site Prevention Practices, Generating Activity Control Measures Material use during building process Building areas Follow manufacturer's instructions. MSDS's attached. Waste collection area will not receive a substantial amount of runoff from upland areas and does not drain directly to a waterway. Containers have lids covered before periods of rain, or are in a covered area. Scheduled collection to prevent As provided by contractor overfilling. MATERIALS NOT TO BE Solid waste disposal BURIED ON -SITE Convenient and well -maintained portable sanitary facilities will be provided, and Sanitary waste Current locations shown on plan 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 Wash area is located at the construction control as specified on plan. Minimize Wash Waters entrance. Adjacent diversion dike will the discharge of pollutants from divert wash water to sediment trap. e ui ment and vehicle washing Vehicle and equipment washing Designated areas and details shown on Provide containment and filtering for all 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 Dust control water Sediment As shown on plan Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Discharge Pollutants or Pollutant Location on Site Constituents E. Persons responsible for pollution prevention practices (Provide the names and contact information for all persons responsible for prevention practices as listed above.) Elizabeth Mann 3600 Grandview Parkway, Suite 200 Birmingham, AL 35243 205-970-7850 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; Materials and equipment necessary for oil or chemical spill cleanup will be kept in the temporary material storage trailer onsite. Equipment will include, but not be limited to, brooms, dust pans, mops, rags, gloves, goggles, kitty litter, sand, saw dust, and plastic and metal trash containers. All oil or other chemical spills will be cleaned up immediately upon discovery. Identify and stop source of discharge. Use absorptive materials to soak up as much chemical as possible. Place all contaminated material in trash containers for disposal. 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.) Reports will be made to the following: Virginia Department of Emergency Management Emergency Operations Center (EOC) Phone: (800) 468-8892 Spills large enough to reach the storm sewers will be reported to the National Response Center at 1-800-424-8802. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County 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.) The registered land disturber shall oversee all construction activities to implement and maintain pollution prevention measures. As such training and procedures shall be provided by contractor for each worker on site before they begin land disturbing activities. Training on implementation of erosion and sediment control devices/procedures must be provided by registered land disturber each time a new E&SC procedure is constructed. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 7. Discharges to impaired waters, surface waters within an applicable TMDL wasteload allocation, and exceptional waters. This site discharges to impaired waters as detailed on the following sheets. Enhanced inspection frequency is required as outlined below: (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. Addition items for implementation: (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. 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.) Elizabeth Mann 3600 Grandview Parkway, Suite 200 Birmingham, AL 35243 205-970-7850 Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 9. Signed Certification (Provide certification according to 9VAC25-870-370. For purposes of plan review and approvals, this certification should be the owner of the property, the same signature as appears on the bonds and applications. Another operator can be designated on the delegation of authority form to follow.) 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." Owner/Operator Name: Company: Title: Signature: Date: 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 I, (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 construction site. The designee is authorized to sign any reports, stormwater pollution prevention plans and all other documents required by the permit. (name of person or position) (company) (address) (city, state, zip) (phone) By signing this authorization, I confirm that I meet the requirements to make such a designation as set forth in the Construction General Permit (CGP), and that the designee above meets the definition of a "duly authorized representative". Operator Name: Company: Title: Signature: Date: 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 COMMONWEALTH of VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY General Permit No.: VAR10 Effective Date: July 1, 2019 Expiration Date: June 30, 2024 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 the registration statement filed with the Department of Environmental Quality, 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 in this general permit. Construction General Permit Effective July 1, 2019 Page 2 of 26 PART 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. Page 3 of 26 4. Impaired waters and total maximum daily load (TMDL) limitation. a. Nutrient and sediment impaired waters. Discharges of stormwater from construction activities to surface waters identified as impaired in the 2016 § 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 stormwater pollution prevention plan (SWPPP) in accordance with Part II B 5 of this permit that minimizes the pollutants of concern and, when applicable, is consistent with the assumptions and requirements of the approved TMDL wasteload allocations and implements an inspection frequency consistent with Part II G 2 a. b. Polychlorinated biphenyl (PCB) impaired waters. Discharges of stormwater from construction activities that include the demolition of any structure with at least 10,000 square feet of floor space built or renovated before January 1, 1980, to surface waters identified as impaired in the 2016 § 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 PCB are not eligible for coverage under this general permit unless the operator develops, implements, and maintains a SWPPP in accordance with Part II B 6 of this permit that minimizes the pollutants of concern and, when applicable, is consistent with the assumptions and requirements of the approved TMDL wasteload allocations, and implements an inspection frequency consistent with Part II G 2 a. 5. Exceptional waters limitation. Discharges of stormwater from construction activities not previously covered under the general permit effective on July 1, 2014, to exceptional waters identified in 9VAC25-260-30 A 3 c are not eligible for coverage under this general permit unless the operator develops, implements, and maintains a SWPPP in accordance with Part II B 7 of this permit and implements an inspection frequency consistent with Part II G 2 a. 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. D. Prohibition of nonstormwater discharges. Except as provided in Parts I A 2, 1 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; Page 4 of 26 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, managed in a manner to avoid an instream impact; 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, unless a registration statement was not required to be submitted in accordance with 9VAC25-880-50 A 1 c or A 2 b for single-family detached residential structures, to the VSMP authority after one or more of the following conditions have been met: Page 5 of 26 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 has operational control. When applicable, long term responsibility and maintenance requirements for permanent control measures shall be recorded in the local land records prior to the submission of a complete and accurate notice of termination and the construction record drawing prepared; 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 individual lots in residential construction only, final stabilization as defined in 9VAC25- 880-1 has been completed, including providing written notification to the homeowner and incorporating a copy of the notification and signed certification statement into the SWPPP, and the residence has been transferred to the homeowner. 2. The notice of termination shall be submitted no later than 30 days after one of the above conditions in subdivision 1 of this subsection is met. 3. Termination of authorization 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 a complete and accurate notice of termination in accordance with 9VAC25-880-60 C, whichever occurs first. 4. 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 unless otherwise notified by the VSMP authority or department. 5. The notice of termination shall be signed in accordance with Part III K of this general permit. G. Water quality protection. 1. The operator shall 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 C 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 Page 6 of 26 c. Submit an individual permit application in accordance with 9VAC25-870-410 B 3. All written responses required under this chapter shall include a signed certification consistent with Part II I K. PART II STORMWATER POLLUTION PREVENTION PLAN A. Stormwater pollution prevent 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. 2. 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 B. 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 shall develop the missing elements and include them in the SWPPP. 3. Any operator that was authorized to discharge under the general permit effective July 1, 2014, 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. B. 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: Page 7 of 26 (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; (5) Locations where concentrated stormwater is discharged; (6) Locations of any support activities, including (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 as allowed by Part II G 2 a (1) (ii) or Part II G 2 b (2). 2. Erosion and sediment control plan. a. An erosion and sediment control plan designed and approved in accordance with the Virginia 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. b. All erosion and sediment control plans shall include a statement describing the maintenance responsibilities required for the erosion and sediment controls used. c. An 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, implemented to: (1) Control the volume and velocity of stormwater runoff within the site to minimize soil erosion; (2) Control stormwater discharges, including peak flow rates and total stormwater volume, to minimize erosion at outlets and to minimize downstream channel and stream bank erosion; Page 8 of 26 (3) Minimize the amount of soil exposed during the construction activity; (4) Minimize the disturbance of steep slopes; (5) Minimize 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) Provide and maintain natural buffers around surface waters, direct stormwater to vegetated areas to increase sediment removal, and maximize stormwater infiltration, unless infeasible; (7) Minimize soil compaction and, unless infeasible, preserve topsoil; (8) Ensure initiation of stabilization activities, as defined in 9VAC25-880-1, of disturbed areas 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 (9) Utilize 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. Except for those projects identified in Part II B 3 b, 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. b. For any operator meeting the conditions of 9VAC25-870-47 B of the VSMP regulation, an approved stormwater management plan is not required. In lieu of an approved stormwater management plan, 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; Page 9 of 26 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); (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 Page 10 of 26 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, waste concrete, and sanitary wastes; (8) Address any other discharge from the potential pollutant -generating activities not addressed above; (9) Minimize the exposure of waste materials to precipitation by closing or covering waste containers during precipitation events and at the end of the business day, or implementing other similarly effective practices. Minimization of exposure is not required in cases where the exposure to precipitation will not result in a discharge of pollutants; 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 nutrient and sediment impaired waters. For discharges to surface waters (i) identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated Report or (ii) with an applicable TMDL wasteload allocation established and approved prior to the term of this general permit for sediment for a sediment - related parameter (i.e., total suspended solids or turbidity) or nutrients (i.e., nitrogen or phosphorus), the operator shall: a. Identify the impaired waters, approved TMDLs, and pollutants of concern in the SWPPP; and b. Provide clear direction in the SWPPP 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 II G 2 a. 6. SWPPP requirements for discharges to polychlorinated biphenyl (PCB) impaired waters. For discharges from construction activities that include the demolition of any structure with at least 10,000 square feet of floor space built or renovated before January 1, 1980, to surface waters (i) identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated Report or (ii) with an applicable TMDL wasteload allocation established and approved prior to the term of this general permit for PCB, the operator shall: Page 11 of 26 a. Identify the impaired waters, approved TMDI-s, and pollutant of concern in the SWPPP; b. Implement the approved erosion and sediment control plan in accordance with Part II B 2; c. Dispose of waste materials in compliance with applicable state, federal, and local requirements; and d. Implement a modified inspection schedule in accordance with Part II G 2 a. 7. SWPPP requirements for discharges to exceptional waters. For discharges to surface waters identified in 9VAC25-260-30 A 3 c as an exceptional water, the operator shall: a. Identify the exceptional surface waters in the SWPPP; and b. Provide clear direction in the SWPPP 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 II G 2 a. 8. Identification of qualified personnel. The name, phone number, and qualifications of the qualified personnel conducting inspections required by this general permit. 9. Delegation of authority. The individuals or positions with delegated authority, in accordance with Part III K, to sign inspection reports or modify the SWPPP. 10. SWPPP signature. The SWPPP shall be signed and dated in accordance with Part III K. C. 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 shall 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 shall be accomplished as described in Part II H. Page 12 of 26 3. The SWPPP shall clearly identify the contractors 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 as soon as possible but 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 were modified; 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 G. 5. Amendments, modifications, or updates to the SWPPP shall be signed in accordance with Part III K. D. 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. E. 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. Page 13 of 26 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 shall 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 D. 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. F. 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. All control measures shall 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 G identifies a control measure that is not operating effectively, corrective actions 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 G identify an existing control measure that needs to be modified or if an additional or alternative 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 additional or 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. G. 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 ensuring that the qualified personnel conduct the inspection. 2. Inspection schedule. a. For construction activities that discharge to a surface water identified in Part II B 5 and B 6 as impaired or having an approved TMDL or Part I B 7 as exceptional, the following inspection schedule requirements apply: (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 24 hours following a measurable storm event. In the event that a measurable storm event occurs when Page 14 of 26 there are more than 24 hours between business days, the inspection shall be conducted on the next business day; and (2) Representative inspections as authorized in Part II G 2 d shall not be allowed. b. Except as specified in Part II G 2 a, inspections shall be conducted at a frequency of: (1) At least once every five business days; or (2) At least once every 10 business days and no later than 24 hours following a measurable storm event. In the event that a measurable storm event occurs when there are more than 24 hours between business days, the inspection shall be conducted on the next business day. c. 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 described in Part II G 2 a and 2 b 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. d. Except as prohibited in Part II G 2 a (2), 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 inspection report required by Part II G. e. If adverse weather causes the safety of the inspection personnel to be in jeopardy, the inspection may be delayed until the next business day on which it is safe to perform the inspection. Any time inspections are delayed due to adverse weather conditions, evidence of the adverse weather conditions shall be included in the SWPPP with the dates of occurrence. 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; Page 15 of 26 (2) Record the information and a description of any discharges occurring at the time of the inspection or evidence of discharges occurring prior to 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 and effective impoundment or flow control; (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 channels, flumes, 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 or public roads for minimizing sediment tracking; (5) Inspect areas that have reached final grade or that will remain dormant for more than 14 days to ensure: (a) Initiation of stabilization activities have occurred immediately, as defined in 9VAC25-880-1; and (b) Stabilization activities have been completed within seven days of reaching grade or stopping work; (6) 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: Page 16 of 26 (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 sediment 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 or is not effective 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 or sediment deposition outside of the approved area to be disturbed; (7) Inspect pollutant generating activities identified in the pollution prevention plan for the proper implementation, maintenance, and effectiveness of the procedures and practices; (8) Identify any pollutant generating activities not identified in the pollution prevention plan; and (9) 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 locations of prohibited discharges; d. The locations of control measures that require maintenance; Page 17 of 26 e. The locations of control measures that failed to operate as designed or proved inadequate or inappropriate for a particular location; f. The locations where any evidence identified under Part II G 3 a (6) exists; g. The locations where any additional control measure is needed; 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; Documentation of any corrective actions required from a previous inspection that have not been implemented; and The date and signature of the qualified personnel and the operator or its duly authorized representative. 5. The inspection report shall be included into the SWPPP no later than four business days after the inspection is complete. 6. The inspection report and any actions taken in accordance with Part II shall 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. H. Corrective actions. The operator shall implement the corrective actions 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. Page 18 of 26 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 shall comply with the requirements of subsections A, B, and C, as appropriate. A. Monitoring. 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 (1 VAC30-45 or 1 VAC30-46). 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 individuals who performed the sampling or measurements; c. The dates and times analyses were performed; d. The individuals 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. Page 19 of 26 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. 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 terminating this general permit coverage 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; Page 20 of 26 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. 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 in this general 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 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 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; Page 21 of 26 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 II I 1 1 or 2 in writing as part of the SWPPP. The reports shall contain the information listed in Part 111 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. 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 Page 22 of 26 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 and other information. 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 III 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 III 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 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 shall 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: 5. "1 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 Page 23 of 26 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 coverage, 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 60 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. 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. Page 24 of 26 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 I I I 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. 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. Page 25 of 26 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 of the upset; b. The permitted facility was at the time being properly operated; c. The operator submitted notice of the upset as required in Part III I; and d. The operator complied with any remedial measures required under Part III S. 5. In any enforcement proceeding, the operator seeking to establish the occurrence of an upset has the burden of proof. W. Inspection and entry. The operator shall allow the department as the board's designee, the VSMP authority, EPA, or an authorized representative of either entity (including an authorized contractor), upon presentation of credentials and other documents as may be required by law to: 1. Enter upon the operator's premises where a regulated facility or activity is located or conducted, or where records shall be kept under the conditions of this general permit; 2. Have access to and copy, at reasonable times, any records that shall 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. Page 26 of 26 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. X. State permit actions. State permit coverage 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 permit coverage. 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. Section 12. Inspection logs INSPECTION FREQUENCY: (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. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County STORM WATER INSPECTIONS FOR VSMP GENERAL PERMIT LAND DISTRIBUTING ACTIVITIES Page 1 PROJECT: MONITORING FOR THE WEEK BEGINNING: DATE AND TIME OF INSPECTION: RAINFALL: Date of Rain Amount (Inches) Initials EROSION AND SEDIMENT CONTROL FACILITIES INSPECTED: (Inspections shall be conducted according to Part IIF2 of the Permit. However, if the discharges of stormwater from construction activities are to surface waters identified as imparied, inspections shall be conducted according to Part 164d.) Facility Identification Date and Time of Inspection Operating Properly (Y/N) Description of inspection observations OBSERVATION OF RUNOFF AT STORMWATER DISHCARGE OUTFALLS: (Inspections shall be conducted according to Part IIF2 of the Permit. However, if the discharges of stormwater from construction activities are to surface waters identified as imparied, inspections shall be conducted according to Part 164d.) By this signature, I certify that this report is accurate and complete to the best of my knowledge: Qualified Personnel By this signature, I certify that the contruction activity is in compliance with the SWPP and general permit. Qualified Personnel Note: If msepction report does not identify any mci ceritication statement on page 3 shall be signed. By this signature, I certify that this report is accurate and complete to the best of my knowledge: Operator/Duly Authorized Representative By this signature, I certify that the contruction activity is in compliance with the SWPP and general permit. Operator/Duly Authorized Representative nce Stormwater Discharge Outfall Identification Date Clarity Floating Solids Suspended Solids Oil Sheen Other obvious indicators of stormwater pollution (list and describe) Visible sediment leaving the site? (Y/N) If yes, describe actions taken to prevent future releases (may need to attach additional information) Describe measures taken to clean up sediment outside of disturbed limits (may need to attach additional information) Clarity: Choose the number which best describes the clarity of the discharge where 1 is clear and 10 is very cloudy Floating Solids: Choose the number which best describes the amount of floating solids in the discharge where 1 is no solids and 10 the surface us covered in floating solids Suspended Solids: Choose the number which best describes the amount of suspended solids in the discharge where 1 is no solids and 10 is extremely muddy. Oil Sheen: Is there an oil sheen in the stormwater discharge (Y or N)? STORM WATER INSPECTIONS FOR VSMP GENERAL PERMIT LAND DISTRIBUTING ACTIVITIES Page 1 PROJECT: MONITORING FOR THE WEEK BEGINNING: DATE AND TIME OF INSPECTION: RAINFALL: Date of Rain Amount (Inches) Initials EROSION AND SEDIMENT CONTROL FACILITIES INSPECTED: (Inspections shall be conducted according to Part IIF2 of the Permit. However, if the discharges of stormwater from construction activities are to surface waters identified as imparied, inspections shall be conducted according to Part 164d.) Facility Identification Date and Time of Inspection Operating Properly (Y/N) Description of inspection observations OBSERVATION OF RUNOFF AT STORMWATER DISHCARGE OUTFALLS: (Inspections shall be conducted according to Part IIF2 of the Permit. However, if the discharges of stormwater from construction activities are to surface waters identified as imparied, inspections shall be conducted according to Part 164d.) By this signature, I certify that this report is accurate and complete to the best of my knowledge: Qualified Personnel By this signature, I certify that the contruction activity is in compliance with the SWPP and general permit. Qualified Personnel Note: If msepction report does not identify any mci ceritication statement on page 3 shall be signed. By this signature, I certify that this report is accurate and complete to the best of my knowledge: Operator/Duly Authorized Representative By this signature, I certify that the contruction activity is in compliance with the SWPP and general permit. Operator/Duly Authorized Representative nce Stormwater Discharge Outfall Identification Date Clarity Floating Solids Suspended Solids Oil Sheen Other obvious indicators of stormwater pollution (list and describe) Visible sediment leaving the site? (Y/N) If yes, describe actions taken to prevent future releases (may need to attach additional information) Describe measures taken to clean up sediment outside of disturbed limits (may need to attach additional information) Clarity: Choose the number which best describes the clarity of the discharge where 1 is clear and 10 is very cloudy Floating Solids: Choose the number which best describes the amount of floating solids in the discharge where 1 is no solids and 10 the surface us covered in floating solids Suspended Solids: Choose the number which best describes the amount of suspended solids in the discharge where 1 is no solids and 10 is extremely muddy. Oil Sheen: Is there an oil sheen in the stormwater discharge (Y or N)? STORM WATER INSPECTIONS FOR VSMP GENERAL PERMIT LAND DISTRIBUTING ACTIVITIES Page 1 PROJECT: MONITORING FOR THE WEEK BEGINNING: DATE AND TIME OF INSPECTION: RAINFALL: Date of Rain Amount (Inches) Initials EROSION AND SEDIMENT CONTROL FACILITIES INSPECTED: (Inspections shall be conducted according to Part IIF2 of the Permit. However, if the discharges of stormwater from construction activities are to surface waters identified as imparied, inspections shall be conducted according to Part 164d.) Facility Identification Date and Time of Inspection Operating Properly (Y/N) Description of inspection observations OBSERVATION OF RUNOFF AT STORMWATER DISHCARGE OUTFALLS: (Inspections shall be conducted according to Part IIF2 of the Permit. However, if the discharges of stormwater from construction activities are to surface waters identified as imparied, inspections shall be conducted according to Part 164d.) By this signature, I certify that this report is accurate and complete to the best of my knowledge: Qualified Personnel By this signature, I certify that the contruction activity is in compliance with the SWPP and general permit. Qualified Personnel Note: If msepction report does not identify any mci ceritication statement on page 3 shall be signed. By this signature, I certify that this report is accurate and complete to the best of my knowledge: Operator/Duly Authorized Representative By this signature, I certify that the contruction activity is in compliance with the SWPP and general permit. Operator/Duly Authorized Representative nce Stormwater Discharge Outfall Identification Date Clarity Floating Solids Suspended Solids Oil Sheen Other obvious indicators of stormwater pollution (list and describe) Visible sediment leaving the site? (Y/N) If yes, describe actions taken to prevent future releases (may need to attach additional information) Describe measures taken to clean up sediment outside of disturbed limits (may need to attach additional information) Clarity: Choose the number which best describes the clarity of the discharge where 1 is clear and 10 is very cloudy Floating Solids: Choose the number which best describes the amount of floating solids in the discharge where 1 is no solids and 10 the surface us covered in floating solids Suspended Solids: Choose the number which best describes the amount of suspended solids in the discharge where 1 is no solids and 10 is extremely muddy. Oil Sheen: Is there an oil sheen in the stormwater discharge (Y or N)?