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WPO202200011 VSMP - SWPPP 2022-10-14
of A COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road, North Wing 1 Charlottesville, Virginia 22902-4596 Tel. (434) 296-5832 • Fax (434) 972-4126 �IRGiN1P Stormwater Pollution Prevention Plan (SWPPP) For Construction Activities At: Project Name: Rio Point WPO-2022-00011 878 Rio Road East Charlottesville, Virginia22902 Prepared by: Timmons Group 608 Preston Avenue, Suite 200 Charlottesville, VA 22903 434.295.8317 Prepared for: Rio Point LLC 123 East Main Street 5a' Floor Charlottesville, VA 22902 Contact: Mr. Chris Henry CHenry@stonypointdg.com SWPPP Preparation Date: February 04, 2022 Rev: May 9, 2022 Rev: October 12, 2022 (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 Section 1. Registration statement (Provide a signed completed copy of the DEQ registration statement) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY PERMIT #: GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM PLAN/ID #: CONSTRUCTION ACTIVITIES (VAR10) TECHNICAL CRITERIA: 1113 ❑ IIC ❑ REGISTRATION STATEMENT 2019 Application type. ❑ NEW PERMIT ISSUANCE (CHOOSE ONE) ❑ MODIFICATION WITH ACREAGE INCREASE ❑ MODIFICATION WITHOUT ACREAGE INCREASE ❑ EXISTING PERMIT RE -ISSUANCE Section I. Operator/Permittee Information. A. Construction Activity Operator (Permittee). The person or entity that is applying for permit coverage and will have operational control over construction activities to ensure compliance with the general permit. A person with signatory authority for this operator must sign the certification in Section V. (per Part III. K. of the VAR10 Permit). Operator Name: Contact person: Address: City, State and Zip Code: Phone Number: Primary and CC Email: B. Electronic correspondence. To receive an emailed coverage letter or to pay by credit card, you must choose YES and include a valid email. May we transmit correspondence electronically? YES ❑ NO ❑ Section II. Construction Activity 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 waterbodies receiving stormwater discharges from the site. B. Project site location information. Construction Activity Name: Address: City and/or County and Zip Code: Construction Activity Entrance Location (description, street address and/or latitude/longitude in decimal degrees): Latitude and Longitude (6-digit, decimal degrees format): C. 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 (include entire area to be disturbed as approved in the Stormwater Management Plan): Primary estimated area to be disturbed (include portions with Erosion and Sediment Control Plan approval only): Off -site estimated area to be disturbed (if applicable): D. Property Owner Status: FEDERAL ❑ STATE ❑ PUBLIC ❑ PRIVATE ❑ E. Nature of the Construction Activity Description (i.e. commercial, industrial, residential, agricultural, environmental, utility): F. Municipal Separate Storm Sewer System (MS4) name(s) (if the site is discharging to a MS4): G. Estimated Project Dates (MM/DD/YYYY). Start Date: Completion Date: H. Is this construction activity part of a larger common plan of development or sale? YES ❑ NO ❑ Rev 11/2020 PAGE 1 1 6 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 I. 6" Order Hydrologic Unit Code (HUC) and Receiving Water Name(s). Include additional areas on a separate page. HUC NAME(S) OF RECEIVING WATERBODY Section III. Off -site Support Activity Location Information. List all off -site support activities and excavated material disposal areas being utilized for this project. Include additional areas on a separate page. Off -site Activity Name: Address: City or County: Off -site Activity Entrance Location (description, street address and/or latitude/longitude in decimal degrees): Latitude and Longitude (6-digit, decimal degrees format): Is this off -site activity an excavated material disposal area? YES ❑ NO ❑ If this off -site activity is an excavated material disposal area, list the contents of the excavated fill material: Willa separate VPDES permit cover this off -site activity? YES ❑ NO ❑ Section IV. 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 VESC Authority for review? YES ❑ NO ❑ Erosion and Sediment Control Plan Approval Date (for the estimated area to be disturbed MM/DD/YYYY): C. Has land -disturbance commenced? YES ❑ NO ❑ D. Annual Standards and Specifications. If this project is utilizing approved Annual Standards and Specifications (AS&S), attached the completed AS&S Entity Form. AS&S Entity Name (if different from the Operator identified in Section I): E. Billing information (leave blank if same as the Operator identified in Section I. above). This entity will receive Annual Permit Maintenance and Permit Modification Fee invoices (if applicable). Billing Name: Contact Name: Address: City, State and Zip Code: Phone Number: Primary and CC Email: Rev 11/2020 PAGE 2 16 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 Section V. 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 (ill 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 os follows: a. For a corporation: by a responsible corporate officer. For the purpose of this chapter, a responsible corporate officer means: (i) a president secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy -making or decision -making functions for the corporation; or (ii) the manager of one or more manufacturing, production, or operating facilities, provided the manager is authorized to make management decisions that govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long-term compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for state permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures, b. For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or c. For a municipality, state, federal, or other public agency: by either a principal executive officer or ranking elected official. For purposes of this chapter, a principal executive officer of a public agency includes: (i) the chief executive officer of the agency or (ii) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency. Certification: "I certify under penalty of law that I have read and understand this Registration Statement and that this document and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering the information, the information submitted is to the best of my knowledge and belief true, accurate, and complete. I am aware that there are significant penalties for submitting false information including the possibility of fine and imprisonment for knowing violations." Printed Name: K 6na1ci A - Signature (signed in ink): Date Signed: Section VI. Submittal Instructions. Submit this form to the VSMP Authority. If the locality is the VSMP Authority, please send your Registration Statement submittal directly to the locality; do NOT send this form to DEQ. A list of local VSMP Authorities is available here: VSMP Authorities. If DEQ is the VSMP Authority, please send to: If the locality is the VSMP Authority, please send to: Department of Environmental Quality Office of Stormwater Management Suite 1400 PO Box 1105 Richmond VA 23218 constructiongp@deg.virginia.gov Rev 11/2020 PAGE 3 16 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 demolition of all existing structures to construct a residential development, amenities, and associated utilities and site work. Limits of clearing and grading area is 18.92 acres. The western and northern property line is bound by John W Warner Parkway. The eastern property line is bound by Rio Road. The southern property line is bound by the Rio Commons Development, the Charlottesville Waldorf School, and City of Charlottesville Public Open Space. All construction shall take place in accordance with the Erosion and Sediment Control Sequence of Installation on plan sheet C3.0 — C3.18. 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, I W 7 copy of the latest Erosion and Sediment Control Plan. Do not reference only.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County PROJECT DESCRIPTION THIS FROECT INCLUDES THE CBNSTRUCTIDN OF 11 APARTMENT BUILDINGS, 15 TCWNHOUSES AND CLUB HOUSE AND ASSOCIATED UTIIDES AND SIZE WORK. LIMITS OF DISTURBANCE I518.92 ACRES. ADJACENT PROPERTY THE WESTERN AND NORTHERN PROPERTY LINE IS BOUND BY JOHN W WARNER PARKWAY. THE EASTERN PROPERTY LINE IS BOUND BY NO ROAD. THE SOUTHERN PROPERTY LINE IS BOUND BY THE RIC COMMONS DEVELOPMENT, THE CHARLOTTESVILLE WATAME SCHOOL, AND CITY OF CHARLOTTESVILLE PUBLIC OPEN SPACE. EXISTING SITE CONDITIONS CURRENTLY THE SITE HAS RESIDENTIAL HOUSE AND A VARIETY OF SHEDS AND A VACANT GRASS PASTURE. PERMITTING THE OWNER SHALL OBTAIN ALL REQUIRED STATE AND FEDERAL PERMITS INCLUDING WED INDIVIDUAL PERMIT, VRMC GENERAL PERMIT OR US ACE NATIONWIDE FERMI (WETLAND IMPACTS) M. OFF SITE AREAS NO CU TIS AREAS WILL BE DISTURBED AS PART OF CONSTRUCTION. OPTICAL EROSION AREAS ALL CRITICAL SLOPES ARE SHOWN ON PLAN SEEM C2.1, C2.2, C2.3, C2.4, C2.5, C2.6, C4.1, CU2, C4.3, U.4, C4.6. SILT FENCE WILL BE INSTALLED ON THE UPSTREAM ENO OF CRITICAL SLOPES WITHIN THE LIMITS OF DISTURBANCE TO DEMARCATE AND PROTECT THE SLOPES. EROSION AND SEDIMENT CONTROL MEASURES 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 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. A LEVEL l WET POND, AND SIX BIOFILTERS WILL BE CONSTRUCTED FOR THE PURPOSE OF ADDRESSING WATER QUANTITY REQUIREMENTS. AT (FAST I5%OF NUTRIENT TREATMENT WILL OCCUR ONSEE. THE REMAINDER WILL BE PURCHASED STRUCTURAL PRACTICES: 1. TEMPIRARYCOWIRUCTON ENTRANCE-3.02 A TEMPORARY CONSTRUCTION ENTRANCE SHALL BE PROVIDED AT THE LOCATION INDICATED 0PR PREMIUMS. IT IS IMPERATIVETHATTIRS MEASURE BE MAINTAINED TWOUGHOIR CONSTNCTIBN. 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 WWNSLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT -LADEN RUNOFF FROM SHEET FLOW AS INDICATED. rt5 PURPOSE IS TO INTERCEPT SMALL MOUNTS OF SEDIMENT FROM DISTURBED AREAS AND PREVENT SEDIMENT FROM LEAVING THE SIZE. 3. STORM DRAIN INLET PROTECTION - 3.07 STONE FILTERS SHALL BE PLACED AT THE INLET OF ALL DRAINAGE STRUCTURES AS INDICATED ON FEARS. HIS PURPOSE 15 TO PREVENT SEDIMENT FROM ENTERING THE STORM DRAINAGE SYSTEM PRIOR TO PERMANENT STABILIZATION. 4. DIVER$IONDINE-3.09ATEMPORARYRIWEOFCOMPACIEDSCILTO DNERTWATER FROM ACERTAIN AREA. 5. SEDIMENTTRAP-3.13ATEMMMW BARRIER OR DAM WITH A CONTROLLED STORMNATERRELEASETO OBTAIN SEDIMENT.UDEN RUNOFF FROM DISTURBED AREAS IN NVEPAND "CORN STORAGE LONG ENOUGH FOR THE MAJORITYC£SEDIMERITTOSETTLE CUT 5.1. MAINTENANCE OF SEDIMENT TRAP-INSPECTTRAP EM&WKMENTWEEKLYTO ENSURE TIP STRUCTURALLY SWNDANDHASNOT BEEN DAMAGED DURING CONSTRUCTION ACTIVITIES. ADDITICNALLYTHETRAPSHAIL BECHECKEDAEIEREVERYRAINFALLEVENT. ONOETHESEDIMENTHASREACHEDTEEDESIGNATEO 6. SEDIMENT BASIN -3.14 A TEMPORARY SANDIER OR DAM WITH A CONTROLLED STORMWATER REUSE STRUCTURE FORMED BY CONSTRUCING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGE WAY T. OUTLET PROTECTION - 3.18 STRUCTURALLY LINED AMtONS OR OTHER A=nABU ENERGY DISSPAUNG DEVICES WALL BE PLACED ATALLOUTLET$ OF PIPES OR PAVED CHANNEL SECTIONS. S. DUSTCBNNWL-3.39 DUST CONTROL IS TO BE USED THROUGH THE SITE IN AREAS SUMECT TO SURFACE AND AIR MOVEMENT. VEGETATIVE PRACTICES: 1. TOPSOIL TEMPORARY STOCKPILER-3.30 TOPSOIL SHALL BE STRIPPED FROM AREAS TO BE GRADED AND MOORED MR ENTER SPREADING. STOCKNLE LOCATIONS SHALL BE LOCATED ONSIIE 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 15 APPLIED. 3. PERMANENTSEEDIN6-3.32 FOLLOWING GRADING ACTIVITIES, ESTABLISH PERENNIAL VEGETATIVE COVER BY PLANTING SEED TO REDUCE EROSION, STABILIZE DISTURBED AREAS, AND ENHANCE NATURAL BEAUTY. 4. SOIL$TASILIZATION BLANKETS & PUTTING -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. MANAGEMENTSIMTEGIES 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 TROOPING FOR UTILITIES AND DRAINAGE FROM DOWNSTREAM CONVEYANCES IN ORDER TO MINIMIZE PERIMETER CONTROLS. 4. ALL EROSION AND SEDIMENT CONTROL PBACTCES 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 M. B SPEC. 3.32, PERMANENT SEEDING. SEED TYPE SHALL BE AS SPECIFIED FOR MINIMUM CARE UWNS" AND"GENERAL SLOPES" IN THE HANDBOOK FOR SLOPES LESS THAN 3'.1. FOR SLOPES GREATER THAN 11, SEED TYPE SHALL BE AS SPECIFIED FOR "LOW MAINTENANCE SLOPES" IN TABLE 3.32-D OF THE HANDBOOK. FOR MULCH (STRAW OR FIBER) SHALL SE USED ON ALL SEEDED SURFACES. IN ALL SEEDING OPERATIONS SEED, FERTILIZER AND LIME SHALL BE APPLIED PRIOR TO MULCHING. SEQUENCE OF INSTALLATION INSTALLATION PHASE 1(SEE SHELF C3.3, 04, C3.5, C3.6, 0.7, C3.0, CII 1. APRE -CONSTRUCTION MEETING 15 REQUIRED WITH ALBEMARLE COUNTY EBS INSPECTOR, CONTRACIOR, OWNER, AND ENGINEER. THIS MEETING SHALL TAKE PUCE AT THE COUNTY OFFICE BUILDING. CLEARING LIMITS MUST BE FLAGGED PRIOR TO THE MEETING WITH ONE (1) WEEK OF NOTICE. 2. INSTALL CONSTRUCTION ENTRANCE SHOULD THE TEMPORARY CONSTRUCTION ENTRANCE NOT BE MAINTAINED PROPERLY OR AN EXCESSIVE AMOUNT OF SOIL BE TRACKED ONTO THE PUBLIC ROADWAY, THEN A PAVED CONSTRUCTION ENTRANCE, WATER TANKER TRUCK WITH PRESSURE WASHERS, AND SETTING AREA MAY BE REQUIRED BY THE EROSION CONTROL INSPECTOR. 3. INSTALL PERIMETER SILT FENCE AND TREE PROTECTION ALONG LIMITS OF GRADING. 4. INSTALL SEDIMENT TRAPS AND SEDIMENT BASIN PER PUN. 5. INSTALL DIVERSIONS DIKES TO DIRECT RUNOFF TO THE TRAPS AND BASIN. CONTRACTOR TO ENSURE POSITIVE DRAINAGE. STABILIZE ALL AREAS AFTER INSTALLATION. 6. AFTER ALL MEASURES ARE IN PEACE, CONTRACTOR TO COORDINATE INSPECTIONS AS REQUIRED BY THE COUNTY OF ALBEMARLE. T. CLEAR AND GRUB THE PROIER AREA AND BRING SITE UP TO GRADE. A STOCKPILE AREA HAS BEEN INDICATED ON THE PLAN FOR USE BY THE CONTRACTOR. S. SEED ALL DENUDED AREAS PER VESCH STANDARDS. PHASE 11 (SEE SHEET CITED, 0It, 0.12, C3.13, C3.14, CITE, 0.16) 9. ASCONTRAC )RBNNGSTEUPTOGRADE-CONSTRUCTION ROAD STABILIZATION MAY BE REQUIRED IF DEEMED NECESSARY. 11. ADD DIVERSION DIKE PER SHEET 3.12 TO RELAY RUNOFF TOWARDS THE SEDIMENT BASIN. ADDITIONAL DIVERSIONS DIKES MIGHT BE NECESSARY TO DIVERT WATER DURING THE GRADING PROCESS. 12. KEEP THE PHASE 1 DIVERSION DIKES IN PLACE AS LONG AS POSSIBLE. MAINTAIN POSITIVE DRAINAGE TOWARDS SEDIMENT TRAPS AND BASIN TO FULLEST EXTENT POSSIBLE. AS ONE SEDIMENT BASIN OR TRAP IS BROUGHT OFNNE, DIVERT WATER AS NECESSARY TO REMAINING TRAP OR BASIN. ENSURE THAT NO SECTION OF SILT FENCE IS OVERLOADED. 13. SEED ALL DENUDED AREA& PER VESCH STANDARDS. l8. COMPLEE GRADING, INSTALL CURB AND GUTTER, AND BUILDING PADS. l9. ONCE THE STOW NETWORK IS FULLY ONLINE, CLOSE REMAINING SEDIMENT TRAPS. 20. ALL STORMWATER PIPING& STRUCTURES SHALL BE INSPECTED FOR SILT/SEDIMENT. REPRESENT, SILTISEDIM ENT SHALL BE CLEANED OUT FOR THE SYSTEM TO THE SATISFACTION OFTHE EBS INSPECTOR. 21. APPLY PERMANENT SOIL STABILIZATION TO AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS ACHIEVED. 22. ONCE CONSTRUCTION IS COMPLETE AND ALL CONTRIBUTING AREAS ARE STABILIZED, EROSION CONTROL MEASURES CAN BE REMOVED UPON APPROVAL FROM THE IRS 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 PINY PORTION OFTHE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN WRMANTFOR LONGERIHAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE ZEST DORMANT FOR MORE THAN ONE YEAR. M$-2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCKPILES AND BORROW ARMS 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 $FEE AS WELL AS BORROW AREAS AND SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SEE. MS-3. A PERMANENTNEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOTOTHERWISE 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. MI SEDIMENT TRAPS,PERIMETER DIKES, SEDIMENT BARRIERS AND OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP IN ANY LAND DIMMING ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PEACE. MS 5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURE SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALUTION. ME 6. SEDIME TTRAPS SHALL BE DESIGNED AND CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY THE TRUMP. A. THE MINIMUM STORAGE CAPACITY OF 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-T. OUT AND TILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION. SLOPES THAT ARE BOUND TO BE ERODING EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED WITH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM 15 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 GRAIN STRUCTURE. MS-9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALLBE PROVIDED. MS-10. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SMALL BE PROTECTED SO THAT SEDIMENT -LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT. ME 11. BEFORE NEWLY CONSTRUCTED STORM WATER CONVEYANCE CHANNELS OR PIPES ARE MADE OPERATIONAL, ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT CHANCELLERIES SHALL BE INSTALLED IN BOTH THE CONVEYANCE CHANNEL AND RECEIVING CHANNEL. MS -II. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE TAKEN TO MINIMIZE ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND STABIIJZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE DURING CONSTRUCTION. NONEROOIBEE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAU$EWAYSANDCOFFERDAMS. EARTHEN HILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NONERODIBLE CCER MATERIALS. MS-13. WHEN AWE 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 WI1H THE FOLLOWING STANDARDS IN ADDITION TO OTHER APPLICABLE CRITERIA: A. NO MORE THAN SHIP 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 MAPPING DEVICE, OR BOTH, AND DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLAWING STREAM$ OR OFISITE 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-1J. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBLIC ROADS, PROVISIONS SHALL BE 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 SEE STABILIZATION OR AMR THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM AUIHBMY. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SPUR$ SHALL BE PROTECTED FROM SEDIMENT DEPOSITION, EROSION AND DAMAGE DUE TO INCREASES IN VOLUME, VELNTY AND PEAK FLOW RATE OF STORMWATER RUNOFF MR THE STATED FREQUENCY STORM OF 24-HWR DURATION IN ACCORDANCE WITH THE STANDARDS AND CRITERIA LISTED IN SECTION 19 OF VIRGINIA ADMINISTRATIVE CODE 9VAC25- SLID -40 MINIMUM STANDARDS. CONTRACTOR SHALL PROVIDE ALL INFORMATION REQUIRED FOR CONSTRUCTION RECORD DRAWINGS: IS 1: UNLESS OTHERWISE INDICATED, CONSTRUCT AND MAINTAIN ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES ACCORDING TO MINIMUM STANDARDS AND SFCUFIGTIONS OF THE LATEST EDITION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. E$-2: THE CONTROLLING EROSION AND SEDIMENT CONTROLAUIHORFFY WILL MAKE A CONTINUING REVIEW AND EVALUATION OFTHE METHODS AND EFFECTIVENESS OFTHE EROSION CONTROL PLAN. IS PUCE ALL EROSION AND SEDIMENT CONTROL MEASURES PRIOR TO OR AS THE MET STEP IN CLEARING, GRADING, OR LAND DISTURBANCE. IS 4: MAINTAIN A COPY OFTHE APPROVED EROSION AND SEDIMENT CONTROL PUN ON THE SEE AT ALLURES. IS 5: PRIOR TO COMMENCING UND-DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PUNS (INCLUDING, PUT NOT LIMITED TO, OFFSITE BORROW OR WASTE AREA), SUBMIT A SUPPLEMENTARY EROSION CONTROL PUN TO THE ARCHITECT/ENGINEER AND THE CONTROLLING EROSION AND SEDIMENT CONTROL AUTHORITY FOR REVIEW AND ACCEPTANCE. ES -6: PROVIDE ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE RESPONSIBLE LAND DISTURBER. (MODIFIED NOTE) ES-]: ALL DISTURBED ARM SHALL DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT AL IMES DURING LAND -DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT. ES-8: DURING DEWATERING OPERATIONS, PUMP WATER INTO AN APPROVED FILTERING DEVICE. ES-9: INSPECTALL 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 DEVICES IMMEDIATELY. 215 - CULPEPER FINE SANDY LOAM, 2 TO Z PERCENT SLOPES. 40 TO 79INCHES TO PARAIIIHIC AND ETHIC BEDROCK, WELL DRAINED. HYDROLOGIC SOIL GROUP 21C- CULPEPER FINE SANDY LOAM I TO 15 PERCENT SLOPES. 40 TO 79 INCHES TO PARALITHIC AND LEHIC BEDROCK WELL DRAINED. HYDROLOGIC SOIL GROUP 220 - CULPEPER RELAY LOAM, I TO 15 PERCENT SLOPES. 40 TO 791NCHES TO PARALITHIC AND CITRIC BEDROCK, WELL DRAINED. HYDROLOGIC SOIL GROUP:B ME PHILOMOM SANDY LOAM, 25 TO 45 PERCENT SLOPES. MORE THAN 80 INCHES TO RESTRICTIVE FEATURE, WELL DRAINED. HYDROLOGIC SOIL GROUP: A P8 • CL D 0 z 0 OV0Z/2022 DRAM .1 VAN ANSWER oJ. DENKO CLERKED .1 C. KOTARSKI NAM NA, E PHASE III (SEE SHEET 0.17, 0.18, C3.19, C3.20, C3.21,0.22, 0.23) 14. IH$TALL DEPUTY NETWORKS PER PLAN. lfi. INSTALL INSET PROTECTION WHERE SHOWN ON THE PHASE III EROSION AND SEDIMENT CONTROL PUN AND AS THE STORM SYSTEM IS CONSTRUCTED AND PRCOME$ OPERATIONAL. V. ADJUST DIVERSION DIKES AND REMOVE SEDIMENT MAP AS UPHILL DRAINAGE AREAS ARE STABILIZED AND HAS BEEN APPROVED BY ESE INSPECTOR FOR REMOVAL. p 1 46883 C3.0 PIPE OUTLET CONDITIONS SILT FENCE OROPINLET PROTECTOR 1.9ETTIE 0%E3. SLUE 8i ENU X OF A A s.I nnv[mExr n EeM wlt>t EVANS FxnrtE ALONG THE LINE OR sNET HI .N1 O cLo ICYTITURED) iN SIDE ELEVATOR 15 — ` _ � EFI6TINGGxOUND �� FOUR0 STIQNXL 3 e Mlrv� i nliS nrvD PnclmE PIPE OUTLET TO FLIT FxiFROIT IrvroiNEivEucN. FxwvgiFnsoB. AREA WITH NO PTIONAL ���--' ^ m E 'm8 DEFINEDCWINNEL coRNEla PLAN VIEW IN nISTING PERSPECTIVE VIEWS >E vooTa)coursEnccREwTE a / /T AN FULLDRnSIiTIVE To INGFE66 NIDEGFE68 OFEWETH RON / NSPPRG DOSED /_ FLorv€M 3 3 0%� PLAN VIEW FnareSrgxF �mx SHEEf FLOWIN3TALLATION E` ayEPA z0 TD_ ' M ^ , (PERSPECTIVE VIEW( n�iiry SECTION A -A FILTER KEV IN RECOMMENDED IN. /�' / 3 „ U w CLOTH FOR ENTIRE PERIMETER FlvearmrH•,_Ty, ' SECTION A -A �. FLU w leq o��a OETAILA e A ELEVATION OF STAKE AND FABRIC ORIENTATION — r ¢'N M6 ; 3b(MINJ As - SPEACIFICTION / qPo 24 THI6METNOD INIEigMTEciION IBgfFLIW9LE WHERE THE INLEfpMIN6A THE-ETAwL BRET VELYFLATARES ISLOPE1p GRFPTERIxW S%I WHERErHEINLETSHE OPFA LAN I.IREXCEARDS 1 BA3)ANE TYPICAL THE METHOD eWll POINTS SHOULD BE HIGHER INN POINTB. $r W y 62 ea PWELL REINFORCED CONCRETE TxglrvsPACE SECTION B-B (FLOW TNDNODS RRECEIVING DENCENTRATED FLOWS, 611CH AS IN 6TPFET CR xlGxwq DRAINAGEWAYTION £ p £ DEFINEDO PWJ VIEW CHANNEL CE 3.02 IP 3.OT-1 FRONT ELEVATION) EVTION SF 3.052 B O V M1 Z 808 STONE CONSTRUCTION ENTRANCE STORM DRAIN INLET PROTECTION SILT FENCE (WID WIRE SUPPORT) 0 te[ ERNST CONSERVATION SEEDS RIGHTCF-WAY RON NATIVE WOODS MIX -ERNMX-132 PF OAre � SECTION A -A GRAVEL CURB INLET SEDIMENT FILTER C 5oI Sp FILTER KEY INNIRE RECOMMENDED BOTANICAL NAME CCMM'JN NAME \ --� µ. CLOTH FOR ENTIRE PERIMETER PRICEILB An OPUPHIu He MI (F L L L ( SIDE I I1 `FTBN ENA N EI NOTES: :W.W% FRNCARURRA CREEPING RED FESCUE t90 L L .VAN NTEKE 1. APRON LINING M4Y BE REFUSE, GROUTED RESUME, GABION BASKET, OR DSRGUEDM1 CONCRETE. COS 20 W% LOLIUMPERENNE, PERENNIAL RYEGRASS 1BE 2. THE LENGTH OF THE RIPRAP APRON AS CALCULATED USING 'FASTBALL RGL' 'FASTBALLROL' • J. DENKO PLATES 3.1"AND3.iN-0. 3 THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN 6 (TURF TYPE( / /y\ �/ • cx[cxED eY C KOTARSKI NCHES.IME8 20.W% PHLEUMPRATENSE, TIMOTHY,' CLIMAX 1.211 'CLIMNC / % -' • OP a.ta-t 12.03% TRIFOLIUMHYSRIDUM ALSIKECLOVER 3.25 TOM% AGROSTISPEREANNANS. AUTUMN BENTGRAER 14.W ALB.ANYPINESUSH- ALBANY PINE BUSH- NYECOTYPE NY ECOTYPE R RU ATE LLFLrt 1z Fw REDINATER ` }-' /.TILT • • � • PROTECTION TEMPORARY DIVERSION DIKE NEALE N'AE ND Scab TABLE 331-B ACCEPTABLE TEMPORARY SEEDING PLANT MATENU LS -QUICK REFERENCE FOR ALL REGIONS" 8W% AGROSTISALSA RECTOR 8SO _ 100% MO( PRECIS BULK: MUST PLANTING DATES SPECIES RATE(LBS./ACRE) SEDIMENT-Z� -- mBxSUTTERE SEPT. 1-FEB. 15 WENMI%OF SEEDING RATE: HOLES LB PER ACRE PEXE T ANNUAL RYEGRAES WOODLANDOPENINGS cuREI INLET (LOLIUM MULTIFLOR@) fl 50-1 D3 THE SHADE -TOLERAM CLASSES AND CLOVER ARE GOOD FOR )B ' tlU4EL SHALLBE 4DOTF3, XURT OR 5 COARSE M+9REMTE. CEREAL (WINTER) RYE (SECAIECEREALE) WOODLAND OPENINGS AND PARTIALLY SHADED SITES. MIX FORMULATIONSARE SUBJECT TO CHANGE WITHOUT NOTICE DEPENDING - _ FEB. 16-ARE. 30 ANNUAL RYEGRASS 60-1W ON THE AVAI4BILI EY OF EXISTING AND NEW PRODUCTS. WHILE THE FORMULA MAY CHANGE, THE GUIDING PHIL080PHY AND FUNCTION OF 6PECw0APPupTORTHI6 METHOD OF uLETPROTECTONISAPPUCARISAT (Q (DOILIES MULTIFLORUM) THE MIX WILL NOT. CURB v IENCFRwm FT TIRx Ym PARAIWONEORD MSTWOTU J_ U OIECTm FRFPSEOR Q MAY1-AUG.31 GERMAN MILLET 50 TS ITALILA( 331 IP 3.W-8 PERSPECTIVE VIEW O F. (SETARIA W J fr TEMPORARY SEEDING PLANT MATERIALS SLOPE STABILIZATION SEED MIX STORMWATER INLET PROTECTION w ale TABLE S.3LDMIXTURES SITE SPECIFIC SEEDINGFOR PIEDMONT AREA BLOCK AND GRAVEL DROP INLET SEDIMENT FILTER - � z w HI Q Z O TOTAL CBS. PER ACRE Nu 6LCFE Mutm FN RIWE MINIMUM CARE LAWN COMMERCIAL OR RESIDENTIAL PSQ00 CBS. - 1 J vas a Q 1 OR TURF -TYPE TALL FESCUE Str100% KENTULKY3Lu IMPROVED PERENNIAL RYEGRASS O6% 5ry �i^= —BLOCK T g -- © _ �� „,R, R��ew �F no O O Z KENTUCKY BLUEGRASS 05% - —III IIIII xi Famxc EW PERSPECTVE VIEW PLASTIC LH GENERAL SUCKYFI:1 ORFES LESS ___ - ., III ® PLASTIC FENCE METAL FENCE FENCE LL O W KENTULKY 3I FESCUE 128 L88. REDTOPGRASS 2UPS. -� ` �� EJ U) SEASONAL NURSE CROP 20 Ms. 0 B3. LOWMAINTENANCE SLOPE (STEEPER 3:1) FO 3.itr1 SF 3.10 Z 'SEE SLOPE STPBILI24TION SEED MIX — G�IJFSTFkx �� m O to TEMPORARY FILL DIVERSION SAFETY FENCE xo saM wsal. sc O O OVER of ' USE SEASONAL NURSE CROP IN ACCORDANCE WITH SEEDING DATES AS STATED BELOW'. BELOW w FED IBTH THROUGH PPRIL.................................. ANNUAL RYE smlm ENT MAY 1ST THROUGH AUGUST 15TH............................ FOXTAILMLLIET y_. pPCP r' 1� AUGUST 1EN THROUGH OCTOBER............................... ANNUAL RYE y LI LI ❑ 1—I Q Q NOVEMBER THROUGH FEBRUART ISTH........................ WINTER RYE RABREM '-WITH PRE "SUBSTITUTE SERICEA LESPEDEZA FOR CROWNVETCH EAST OF PARIN ILLE,VA(MAY THROUGH SEPTEMBER USE HULLED SERICEA, ALL STANDARD ORANGE VINYL OR PLASTIC CONSTRUCTION OTHER PERIODS, USE UNHULLED SERICEA(. IF FLATPEA IS USED IN LIEU SPECIAGAFPLTeroFON THIS METHOD OF INLET PROTEDRON IBmPuwRE FENCE ATTACHED TO PoSTS (PREWEATHEREDWOOD, OF LROWNVETCH, INCREASE RATE TO SO LBSJACRE. ALL LEGUME SEED DREARE HEAVY OPENS utE EXPECTED AND WHERE An OVERTURN EAPAUDITY GALVANIZED STEEL. IRON OR THICK PVC RUSTIC). AT LEAST MUST BE PROPERLY INOCULATED. WEEPING LOVEGRASS MAY BE IS NECESSARY TO PREVENT EXCEENVE ENDING AROUND THE STXunURE. 4(Y ABOVE FINISH GRADE WITH SPAN BETWEEN POSTS NO ADDED TO ANY SLOPE OR LOWNIAINTENANCE MIX DURING WARMER GREATER THAN N ON CENTER. EVERY NINTH POST SHALL _ SEEDING PERIODS; ADD UT20 LBSIACRE IN MIXES. CRgVELswu FEVcoi p,pnmuecwRSEACCRECATE CONTAIN A WARNING SIGN THAT CLEARLY IDENTIFIES THE IP 3W-3 FENCE AS ATREE PROTECTION FENCE. NO SCALE O PS 332 3.30 V�3;�13 PERMANENT SEEDING MIX FOR PIEDMONT AREA STORM DRAIN INLET PROTECTION TREE PROTECTION ENT X, nosal. no u.I. Table 11: OutletPmRetlon Oeegn Tahle (ref Va_ERISIM a1tl SeClreerl Oonhnl Handboon, Simon 318) ONILET PBnTE4Tpl DESIGN ktl M OItlY Qw111va exon e 8 - a gNg @ g E E in J. 1W 1W tlaIB nL u4 6aal wag Dinh WlbnGo N1J 1IIta Bg fl0 tat as II.O 1!8 Is ,All R ONhII h1n WIX LM'1JW 4.lap Q211 3a 68 Oac AI ONhll lnlo wd laa0 as In _ go - se.e ONhll mlo Blo iG un IImlo Ilb1E omfi. umminolc ® 14�. OIFI ea 2n n.1 oulM1"Do2A Oultell .9101A OUHuIl inio Bp lB Table M SeElmantTmp diesign (spec 3.13) low -lames, P, 259 I, sin- _ pens w m WoManl(M Sea ml, wlumemrl au 1. (oy) sps- - - nil 4Ca 4562 toa.9 1.e w t48s 2525t1 ..,nun. Se 446 sonll 1Po.t 4a.6 ad'+ Ins .0 (cy) 251.5 2A stops,' sums,,"I(q) MYLA) 1935 n d.wa.al We WaeN olake! en NIe i eslkn 011 19i Table M Sesciment Trap Eeaign (agin,113) cwrsegprepele shell trVDJTW.1p5T cfMS I1ll6aWl 155 ,P elect'. Pit) N5 l dlmeubre1.121 iii ln) I18 Idemml z dame aw gene)1'3) 165 Imp wurres «n. w me ,kwt-ml aaa lxn wlNmgan mrwlatre Icy) wnnaWer 43T IIN A tw 2Dss46 wa Sap a3B 3'I53 151< a4o a1a tMe 2e1`.3 --.a' ¢lance re4uiRtl toy) t&".) 11U.1 nm of slnrc se, ml 'N0 II Pmddal A Nls 4ation(q) V]H4 -s- attention,shall To SPOT AIL St dJ6 c of -I is., G. 21 on, an n(I)IMi 9B slda,e: MI. aflrep III.. a) 431 daepelsnllimI(cr) gli 1107 Man grin din-sis,: ini,lo itaets- aaao topadwslegr nn(1) aaD shape plmlEed WNls ele'slcn Pi lag as, sift MUam M) 2 Table 15: Sediment Basin design(spe, 3,14) Basin design r (acre, 1566 :: (Nang I' nwlwr image) ekwhons) wMwealeelep nlumgcy) °umJerm Wume Rrl 45 1 Son 13wT E 4.3 J9 41158% 531 z 9705 418 1&O B31 1Po1.8 419 21487 IN.I 23407 420 24591 8We 31A18 421 Pete M 5 41"TI 422 31141 10318 5255.9 423 3"A" 1216, 64n.7 424 =93 L.: 781&3 425 4172o tATB0 am 426 A5al` 16142 lo91o.5 ce.111as kr) (61 I W9.z I, otmce season IN 89 w awnal nm1M. nb may) 9n Iaume Mine oklneut(cy)133.0.A) 9T0.$ do.- M) 4IL0 Morn cleemmn to once an P I, +o da 1c nWIM lay) Rl'D41 1.V aplllaar ctmilAn reda In. aeoMy) SHIES •n-goqiae ln, 12. mI.... Mining (b)(ddee.rl too a Syr 5+A a 25yr 131] me eglWey. 422 Ne lmd(1, 4.0 1.m (n) MI ack (in) n length ln) In in panel through emmnkmelt an 14 hap, hi serer(251. di wn am In) m ml tNlan m pa s, (fl) eaplw. IIpNGm dlmerelore'. yxtresm sessions ewretRsm bce ib,'. III of ff.. L (n) GI mat. we on TIM Isomerre,insc.I Ronan M,Ih of -,a al.,Iso, easel (a) mlou, truam No. a1) Ate pe of land (SM slain 0Mm In saturate zare 0) Pentar cakm Rpuied 5mmalm 0salms one9maroPlkwr: IWlern Win (A) Nose dwlM most nlwN un len,lh den cMIM (ft) -Nwass' a.,wa 02s.0 aze.o m&0 znz16 a o+ 3:+ No tfi 67 JJ No WA WA WA WA WA WA Na WA WA WA WA SHALLOW BILANKM SUGI�ONJ SHALLOW SLOPES. STRIPS NETTING PROTECTIVE CMENINGS � BE APPLIED ACROSS THE SLOPE. WHERE THERE 13 A BERM AT THE POP OF THE '11E TNI 'HE siAlERIALOVENT.E.Ea. AN. SLOPE ANCHO COVERING PAHVU.UEL TO THE DIRECTION OF FLOW AND ANCHOR SECURELY. BRING GROPERIAL DOWN TO A LEVEL AREA BEFORE TERMINATING THE INSTALLATION 417RN THE AT TE INTERVALS IN DITCHES. APPLY PROTECTIVE COVERING PARALLEL TO THE DIRECTION OF FLOW DITCH FATAILLPOSSIBILE BM J.,F1 j TYMC4L VESCH TREATMENT- 1(SOIL STABILIZATION BLANKET) INSTALLATION CRITERIA WVTAug.NOTES APP' Vr STAPLES REQUIRED PER100SOYDS. YDOF MATERIAL OLI- ANCHOBLMJUNCTONHILOMS CHECK$UOTSO3EBVRIEO fi'TO12. 1YWtk10RM si ED'LH ~ RM'marow IILL llwnlulrep N. Mee MI RITE 1�nW� mE,Dr EomE *�sus REEPOt�eNR1s lilE TI 1.T �r 1 11 OLI VARgss AR 12: T vFllwLv Boll rER uvmwLr H ) 4.y}row Y BM � 3.3fr2 Ps CL D O z O p OV0712022 VAN NtEKER ollgal oJ. DENKO CHEi BY KARSKI SCITE N A. L 1 46883 03.2 _ - SCALE 1 =30' _ ID 6 �urEno , i CURB 0 20 BID OF J R — — — — P _SHEET css SHEET c35 I it '4 d +r SO CUR o W s °RFssIoxXL aS / \ / -' /ram \ 50.CURB INL€TR INVWT 99- \J TDP=L3,.00g\ --_"r,i yT 2 SO .bUT<22 llrZF _ _ _ _ _ _ _ T caT I E r SHEET ca9 oP .,...�.... a fi \ \ TOP<Fi. EORATE TO J E INV BHEE 511 E. ]9 - +. INV UUL=3; 9811' - o - l M=V EASEMENT \ `� ` --+/ `� \\`� \ `\ IN'Nt1.. - n e . i / j^XCEPT/IX✓13, '/ / / \ / C� BEE VDOTPL4N \ `. +% v ` \ _ _ OUT MU•� ra y 6 m O LIM?EL5 y \ ___ / n�rvN e FdBEMENT/ / \ +,n KEY MA — TP ��%'�'� .>• SOILTYPE:=3 _ _ _ _ _ _ _ _�_ _ _ _ _ _ _ 4 _ _ ____ 601E TTFE:31B 4%*, — — — _ _+r INGAVEDWALWAYEXSTl QT TP TP TP \i / •_- evoorPUNce ! I '-- Y SEE VOO9PIAN _________ / l I\ `\ rTIE —TP --TP TP —TP �'TP- TP A ` PROPOBED TEMP-- �- .'-�L DPE EASEMENT I I 1 / \ BEEYQpT PLAN I I \ \ I I ` 1 r I I TREE ENVE AREI(TYP.). A 1'� 1 I \ I PERM PARH � EASEMENT 1 \ SF \ r I�TYI ry IIII,, AYrB"EOOUIII" GIS, i� iARLE T. AK - CDUI,iY'IS LIZ(TICA�I. SYOPkAs LWIAGEO I DID TIOALSLOFES-FREEERYE, A V A 2q VALNUT I I _ - \ -- - -- =-,o�M _ J / SOIL TYRE IS0IL TYPE: 48E I. / V I I'+ SEDIMENT TRAP R2' r� I 3 B0ILTYP'�(31C DC 185 ACRE DRAINAOEMEA I I / I ` T0TAL9TORAGE RE�UIRED:YlY CY I A' r TOTAL BT0RAOEPROVIDED:2BT CYO TOP OE DAM ELEVATION: "To I I I_ BEC BT212 �� I 1 .. liNFEem I ..-__.._..._.--. A _ _..o .. n �•' G oATe VAN R.o s�rveDKR BY PERM. PA _ AA 1 •• J. DENKO r+ - --- -- SEEVDOTPLAN _ - • cx[exeo BY \ -� SF __-- i � � • swe — — a • -- _ — �= w _______IS I _ Q 17 li 01 A si 1 �<pINK I I / - w Ei 0 ^ € I 1 O W � � i AREA TO / / �.''. ' / / 1 w � pP AP�M2: 1.85 AC 4y€4 l SHED � •'�� _ $ £ ��, l �' // SHED `1 •��p����'� 00���•••' ' 46883 it INNE BHEEf C3.5 '` 1 ,I / / ..� fOfj_fj E3 L 1 1 1 1 -r-_ --_— ____ 1 SO FAIRED END SECTION 11 -. OUTIIET=428.45' 1 1 ALBEMARLECOUNTYGIS CRITICAL SLOPES MANAGED - � 1 r1 , IEI 1 -- \� `--- - - - - -- _ EASEMEbT_--------- - .� IF P T TP /\ TP = TP — TP TP TP IPA` 9 i ESE Ni - ST1 ,1 _ D itMHD rol I rOP-011P- sv�mnm 41. Ai �OTST(lUCTURE=42404' %. � LE ® — >° ; �..�.1•'< §dou 35 SHEET cgs IF GOSC ....,.� r� �ESSIOMAA �♦ ________ ______ \ 'Z �TOPN4<4T 76 /GR/�TE 1 ST anti° ru ___ ° ` /i �� NV 11-41 .I6 IA'RCP SB mn.v au - __ STINLETW,.`n ! - INV.OUT=dJJ T24'RCP 8,g INVTOPIN=0J95o BaIEET Lll \ 1 SME ; BHEET C3.9 OF """`"" u� i E V WARNER I INv our 43 ° .'^"^'^' "' . e PKWY o>E 6,6)z3' ....,.,... a4 � P9 MU EXLLIR6 MFY MAP �/+ V TP amsvu v a ry vN C qy '�r 5^a. ittyA AU IF 'IRr 4;N�vyGTF oc .." y9{F SOCURB INLET wMH R TOP dd]65' nu.m.mm iB O 3 INVZM442.05'15"R INVIN(N)=d33. ]0'15'R E e _ MIT59E _ iB.12 _ _ _ y INV OVT=433. 65' 15WL SCALE I"=20' dl—j— - LIDISTURBAIfCE= AC a \ ` - -\ ` W SSILTFPE: 22C3 , �BBBI 11 Is f _________ ��s + 1 `\ ��_���___�1/„s� Duo — — _------------- - - - -- / DBAIIN BY DD - _I \\ ` \\\I / ``� O R. VAN NIEKER , DES GNED BY _ - • , 1 1 I \ � 1 P\ •1 J. DEBAR SO CURB - A / - _ _ ` D BY TOP--054.2T'LETWMHD • C. ATRCHIEEKRS KI 456 /- _ _ _ _ _ ` ` \ INV OUT--149.84 MRCP C A., 1 C�r _ SEDIMENTTRAP #1 - _---- 1 r \ \1 `I j. ' 1` • • -2 q80_ - 2.59 ACRE DRAINAGE AREA 46 TOTAL 8GRACE REQUIRED: SAT CV __ \ ` i ' • ,'20 A �469� TOT STOFACE PROVIDED:WCY ^ \ k'� • ' Y _ TOP OF DAM ELEVATION: 44B.0 MUNJCATI N S f� _ - '-"� 24'HOLLY � _(��i\ OWEST COMMUNICATIONS \\I 111\ i R `Y#'CONC LID COR ON 1 °._ 4L. O -• s wOT vuH II ` ` 1 `` 1 , Du L D P 470 — _ _ _�— _ _ _ \11 I \III 1, $$ — m aLu IMENTTEARE9ro _ \\ `\` 1 \ 1 Q p J I AI _ 3 SEDIMEM TRAP#,:2.59 AC i _ - : `II1 / p _ _ ♦ SHRUBS ry 1 ♦ I ', I \ `I I III 11 \ I I > a/ E 2YMAGNOLIA O CX 48'FLE 20'CEDAR ` II °� SHRUBS ♦ ` I, II O m 018"DSHED --1 i - i < ___"- fe•oEc /❑��uiii i♦ ♦/ I� I I I irylI , Z EC Y 5HOLY WELL ED j WHouSE STUCCO lEDW� g5g e $o '. _,/`' I III Z O ; § �+�-- 24'Ho�y�•�••� T i � _ � HEDGE i �, � , I � O 1 e I II 0 i 36"MAPLE W .` 12GEC ,,•• DEC %z �1 INy�\ ---- —c _ DELID UG ;FEE; 15'CEGAR PP TS ■■� /�R•E�i - / DC _ 470� SF ii% 1 o,No. 4 rwir-s=>. �>t��>.��>. �>t��>. ��}Ff�' MAT TC37 �� Tifr >t >.=Mm=J �msf�rrl� -s., -- >.��>. �>. >t �>.����>. EC3A 37— �F/ i { MATCHLINE SEEM ET C3.6 _ L W TC 3H TC. ' '1 I �� r r 1' I I I I w' / / L--a _.' �0.- I I / / MATCHLINE SEE SHEET C3.3 / ��. �00 S �lS'`lLRt ���1�� iLa-� ���•���s'��I�����srr'����I�����,1����>•������������i�����J� s�.\ q. 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DENKO II l II e1� TS 00, D ev 00/ / I c. KDraasKl I / TREE SAVE AREA(TYR) ' ! � I / I I 1 � � DC ` 1 I I 1 11 III \ � 11 00 I / w I III II 1 , �_� ale.' i a / SOIL TYPE'3,B I IIIII F/ :1 / ♦\ f_ PRE6ERVEP STEEP ! I \ - f' - :r BOIL TYPE 31C _ l 'T'TRM.9 I a \ �� ,•� I >s I f I >s I >s I �' i I� _ /ov / ---------------- IF \ ♦\ o 1 — 1 li CDD �> s a `` `` _-_ 1 t _ _ O m z — a a 3 J — 1 0 -__ f E' A(6EMARlELWN MANAGED -_ r � _ STEEP SLOPESOV£RV - _ _ __ue _ _ _ '-- __ _ �- - _ - - aif - I Q p (n \ \\\\ `llsr+♦'-__ _ va - r � -,u __� r' - _ - ;S Sr�af --------BGRTYPG 2,L , s -------------- I -. 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KOTARSKI I"-20' F— Z O a w Q 2 a 0 F— Z U z z w O w (n 0 Z Q V) O X w 1 46883 1s C3.7 - ___ - - -_ -- a, _ _ _ _ _ _ _ x` , \ � - - _ LIMRS OF DISTORBANCE 18.B2 AC _ -qyp a 1,1pTCHLINE SHEET C35 „-�� ,' \ •M v � A TREESAVEAREF(TYP.) v � � W � i 'aC � 3 xn H9 � i Jam. 3�na p O p O 1 =A SBI e€ SEDIMENTEASINII - U I V 1S85ACREDRARECRNNAOE PAE•1 TOTAL STORAGE REOIRED:3.Lg8 CY may, T STORAGE PROVVIDED: SR TOTAL SS CY\ �'. p BFi TOP OELEVATION: CR OF -- - BOTTOM OF MOFISASINEIEVATIOTION:H5 <33 _ B 1 _ 02/0az0 / z ° _ � N i- e oy 01 DENK wrcxen0 PS DOC / / may- F <e ' 1 • 2D DS 5085 PG. 66S vsE.-RevbENTIAL'-' _ E! • SP -- DC +� OI VY1flTETORTO NMR THE AMOUNT OF - SOILA'PE P1C _ N5 ':: g�[ 4TURBANCE TO ]HE EXTENT \ \ �` -1 ARY FOR UNITARY SEINER CONSTam NECERIUCTION. RESTORE GRACE, / SEED D STRAW \ iT I10 - _ _ _ �� e ALSEM4FLECom/ s' 1 Q T _ _ / e3 ♦ ��� PRESERVED STEEP Z _____ MTRICT VERL1r \♦ J* O \♦ Z�z3 0 3 J* d a z a _ o W o W! _ 4# NCE a: €' O $E l :� IP • .n.mmv.., .n O N DO �m a Lu SCALE 1'@0' I E, 0 30' <p' MEET b — SHEET L38OF ammo vu �. _ — — SHEET C]2��` BHEET C3.9 TP SON NO. 46883 III �5„�� sn�T NO. SCALE 1"=20' SHEET C3.11 CURB 0 - JD% ER WE SHEET C312 $E C3 'SrqcLRelm€ Mn4 i3WC p �,/./�y/ - -- _ _— o _ •'d / __ -- -JNIKWT\1'[:15 iS�REQ I= ```� S. EErc31a r ¢IEEE-�i is - 1 a SHEET C0.16 OP< 6 O_UT<2298 5 CURB/'..ti _ — rSEE VDT SEE OT %AN ENT _ _____________ _ate \ \\ _I / \ `\ \ ��--__ u �. TRAIL EASEMEJIT i r \ EASE T\ lI / \ 1` \ `_-� _ I _ _ __ ____ \ \ .�p�1A.53'1$' \-________ _/ I _ _ _ � PEHN GRAIN I I �__ _ _ / __' ___ _ ____ \ SEE VOONIAN J�II II /� \ I/ I / II/ \ `-��_ �_ �` i.TREE----F---I_ _ _ _ _ IIIII 1 ``\\`\1 ; j rTp—TP-�TP �jP �'tKW; ��TP-=�7 _____________ --___ - - _ - _ . � sEEYpQr PLAN ____ I I I 1 \\ 1 11 I _ _ ____ _ _ __ `- l -. ` 11 \ ` -------- \ \ — _______________ --�__ IIIII --' 1\1 \pp\ \ `. \I r' 1 1 I______________`1K\T'AILI Id' 1 '1 LIMRSOFOISTUR OW07120zz c,r _ _ -- \ III _ _'" \ ` \ \ \ y \ 1 \ � - Jo. l NKO OENKO wEeKED BY \ _ \ 4AR�_v _'_ • CKOTARSHI -� __ _ __ _'ao- / / • swe `C TREE SAVE AREA P. ____ \ _ _ - / • A ' m' ). PERM PARK T i I •`\\\` \ \\� `\\ \ \ \ \ \ ____ ____ _______ -CL ______ _--- � /' a jj� �1\\`\ \ � \\ I i / ________ w ° y1 . � Ala nAw nmm rns Mavrtceo 1 � / O GRI iIGAL OPES-PRESERVE /\ \ \ _ _ , I lY I I I g r coE. €i .�I A A. I I v �I�llii I I I I I I I I I' I i i /l � � �/ _- — ��� ��. 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VAN WEKER lOENKO $B CURB INLET WMNO •• CHKKEU BY SITT 41T CHBOTARSHI BEDIMEJII FLAP#1 r YRCP _ 1 ` INVIN=M9.8T1 SLLLE ? SBACRE DMINAGEARl _ _ - \' ' 1 i ` � • 3"=20' TOTAL STORAGE REGOIRED: YO CY _— `\" \\\ ,\ ,t 1 • TQTALSTI'MGE PROVIDED: 4"CY - TOP OF DPM EIEVADONr0L80 _ _- 1t Ir\ \\\ I 1 /- • EXCEPTI d GIA N✓O 4DU RAD P ----- ' ' f /11 W O0W L, w 1 3\ f Ea _I--------- -- _ ,' I � ill ll�iiil �.'' `♦ TS O __ __-___era-___' ,_--_-_____ ---------- ________ - ___--______ 46863 - III ggF / � roe No. ���-s�>t♦Ei �i i�>t�� s���>. >t ����>.� �� ������>.��>.����s H.K Ho. AIATCHLINESEESHEE C3.13 ' ,I 11 ,', SC3.TT (ig F - _ AA L u . /,�/,'•'i /// ./ T ,� �i'. I l / l 1 i I i i / I / , IMATCHLINE SEE SHEET C3d0 1 >• �-�. i >•�s��>•��>•,�>t��>• ass >•>• a r� 00 � � / / i � i ' ✓ i i l I � / / / / oeF �c•� SF / I ' aM ..,ZR 'scace zo�.p. T/ uMIT3,bFp13ryH34N�E=,es2ac /' / / / � / � I I I / ' I � / / •� /� � w n n 24 r i - k TS I I S / /' / / ;p I i R. 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VAN NIEKER w---------- Sc IFE r=90' cxEexeP BY o as as • G KOTARSKI 1 / \ • • S.E I I � / � 1 / • t^=za P LIMITS OF OISlUR&\NCE=10.92 AC (NJ y __ _ \ \ `\\I W i� - \ \\ \\ \ EZC.EPTION ( `/ ,, O ' CENTRAL TELEPHLr ECOMPANYOr\VIRGI \ ' \I 06.3] w \ N a p `\ O SF > of s '•�� \ \ zaps \ \ \\ O m i..) a \ \ d ¢ H s 1 oW. fA O o! 0 ----- -- ----- I e IL,gi ' otJ a 1 \ \ a5a I 1111 II z 6y>< -�� - _- _ \ \—_ y I 11 II O IS F - - ICONCRETEWAOHOUT j 'C 46883 d _ !• �� �!*�� �!•�t)• >t lt� �� .I I��!•����!•��!•�!•s EHEET No M4C. Eg \!\\ I HL�NE S EEi C.10 j 11 I C3.13 @ig F L o / i I i / I / I I / / I / 3, / ' ,O$ NARY SCHOOL ,,5LfFlaE �- --CONTRACTOR LIMIT THE AMOUNT OF TO DISTURBANCE TO THE EXTENT SEWER CONSTRUCTION RESTSANITORE CONSTRUCTION. REETORE GRAOE. SEED AND STRAW. e aEKITX pEY Z � 0 105� R. pE11Kp Uc, No. 57791 � <yo0-12-22�iW� OM �° &ggE 6 CL D 0 z 0 OV0712022 VAN MEKER DESIDHEDW I. OENKO CNE<YED BY C. 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KOTARSKI • 5 LIE • h-s$ • • H F— z a 0 I..L 1 46883 C3.15 CURB S EV=20' a 20 49 1 p Vo DC ----- - - - --- DI _=-�-- '�$LlCDR91NL€T W/MR4 TORa31.00 . V.9UTJ } IN:60'15"FE SD INLETWMaRATE T21 e _ _ _ _ _ SHEET \ TOP<2306_ �\ PERM. DR s 1 - N __ SEE VDOTPLAN \ ` ` ___ _ `�_ \ 4, _ ___ EMEN 1 ___-_____ __ � I J)' � F �(2)6'RISER9 1I; i T I I MATCACINE SHEET C3.19 / l ' ; / I TP 430.53'15-RCP 6,F m 0 ¢ OW0712022 O R. VAN NIEKER J. DENKO C.KOTARSKI • P=20' FT U) z O z 0 a O Fti L.6. 1 46883 C3.17 SCALE I"=20' 'SH TL3. _ _ rv. - OF _ I orb Im • ��ExATX Yi ' SHEET C]19 {�j.2 IP • mnmmv an AD_2-22 �W$r ' so ElET ENo SECTION our1 L _ _ mp O SSIB 1IIET-42=428.45' In.1 11 ALBEMA SLOPE MANAGED �AISEMARLECOS-MANAOEO JOHN WARNER __ / Z SHEETCO21 2 9 EE 322 INvouT4 L 2 aM w u• TS • • e E E '.I �___�-� •\• �� e s��`.'s'Y - c �____ ,.. 1 - - - __ --- ``cT.M� 5m / ^w zPKWY �- - � - M4P ■ �_ IP \\\ t o i w _PE yy ��. EASEMENT -- �� - - ___ _ _ _ _ _ _ _ _ _ _ _ _ ` / _ - - - ��S✓�.�� $o CURB INLET W/M TOP 4476b BM ®•�, a a - VE� e 3 ____SEEVOOTPIAN — — _ _ _ _ ___ _ _ _ __ — - T -_ — —.� _ __ _ �`. \ � q INV IN(51=4420511 P _ WVIN(Nl 43a Tv 15" � \ -"- INVOUT=433.65'1YFCP 6 2C L IP F€ iP �\ TP=TP—TP—TP P yy �Ip ' - - - _ 1 LIMR$OF OI$TURwFe=ifl�AC ` _', f 0 V O V _ _ _ _ PERM PARK, TOP=40403' _ -' __ ____ "RCP _ _ _ _ — ��' 24 60 $ /I �� ` ' wie �m IP '^ OBABN BY R. VAN WESER _____ ______ ___` r //� O oeslerveo By J. SENSE CHEI BY 7- SM CU--054BINLET WMNO TOP.2]'0 I1 • . N SAN _ _ _ _ _ - - _____---- 1 \ • 1 &WEER INV OUT4 15"RCP • C. TA KORSKI =- 20' 4. ; 'EB • —' srv_______rn _________ PS _4"—--- -- I c)" BI IP J ol Z fA o W. Owu 0•W �A10 0'W - 0'W BNJ 8'W 8'W SF / NS P •a j j A3 A3 � ® Y - - � Z a � ..... .;29 i� IS29 a= Ala I I\ oTo ==s>•=m==>•=m>•BRO ' �>• �>•� >•� �, >• >•�>•��>•��>•�>•>•�s r���>• / 1•' _MATCHLINE SEESI ET BHBBT No. an L MATC.LNE$EE 811.T C3.T/ �,AT X OF =7� 1�rrL rt/r -/ 1 r r��r�r s�r.!`rrr rr rJrr rr rrrr�� +!E qRi / UF iE 9AN SfBNN Iy6m zp 'I ads E / 1 ny' UMI SOF I �a,Dl6T'9 VLE ,o Y /i @ . V6 rpu G2C IPIP / I / / / I I / r � •e i �,• I- o ao I � PS I o ao— __DRAWN BY R. VAN NIFXER DE=I��ED� I I I. 1 I .' J •1 J. 0ENK0 w2FEDBY TREE SAVE AREA(TVP.) I (1)WRISER H /., • • � I 1 I I ' \ __ IP I�• 1 ? e P / I 1 / I �tir I I ' S 5 R✓ / I I I � 1 � 1/ ____ � I c I r I O 1 �2i SER_.S _ / I 1 _ __ — W I / _ y. fq § � _____ — �• w H -- ___ Ox UJ cE — _ _ •uo — — _ otS •'a E 20'.. O 6X SF �ee 8H TM. SHEET C3.18 p _ _ _ ` \ \ ` IP • { 1 \ _--- SAN —sAN u` BAN" 00 - - - --- ---- - r IS : xe I W s2 OP 1 �I MU ..a• ass 0 _ — — _ — t TP v—nevmum •„ BHEETC3.21 SHE j __-446 46883 '� \ rrrrr rrrTCHrLINEs r rrrr!A� ruz S.°:3 KEYMg {F L ° ° m I I \\ L \ / y S E1"=20' - 10 20' an lco ° • RO'ACM SANITARY EASEMENT DBGG � OD wwrn v DC SIT Ps SB 00 PS HARLV;E>ST Vf LE,t;V 4D6RFS vHQ-OL—Wb. dD / D8: 4202 PGA 3 �� v USE; ELEM�NTARYSCHOOL P ., oc Y / i / �59' m�vowma.�o.mrovio.e MSTURBANCE TO LIMB XERMOUNi OF &H W. &HEETC318 \ ��Y.J 3s DI&TU �BL��EpT�O.$THE EXTENT � 2'" LONNECSTTRUCTION`iU?�3i0RE 9E E a dT J .Dy$-��f' ( SEED AND STRAW ` e /\ 26 /SOI'� i 18'/ �aE�,ITX pEYJB Uc, No. 57791 � <yo0-12-22�iW� OM � F � o WfE 02/0712022 R. VAN WEAER • oE510HEDIN • J OENKO • llKKIDOY c. WTARSW • —S. • 1-20FT • • CL O U) z O M w Q_ a J O F- H z 0 F- z z w w w Z O O w w 1 46883 C3.21 LIMITS OF DISTURBANCE 1882 AC i� F p' STEEP 0 TRICT �aE�,ITX pqE Y/q c i i _ — �v .�i 1CSSIG 0. DENKp Bo, N5. 57791 � ' - <yo0-12-22 ivy —� OM ' aid '--A32 C3 � ate & g aze rza € =ggam 22 CSI Y< 2 3 SBI 8fDIMENl8481N t1 � O �1SBBACRE CRNNNOE PAEI I V TOTAL STORAGE REQUIRED: 2. CY 0 TOTAL STORAGE PROVIDED: EKES CY TOF OFDMI ELEVATION: C28 o ry \\FSASIN EIEVATION:H5 p o � mr� LV0712022 y i 516HED BY SF DC —IWI�\L11V/!t_ �i i' _ __ — ' L.K OTARSW ___ - - RrO COMMONS ELC --- --- ' • / _ - - 3wv _ - - - -- _\ PE fi6S - - - -_-- -_— S 5 _ �• --- -- - _ - ,w - -- _ - \ _ - _ - - AID NT _ uD� E --ago---- --- ----- ,- _-� Po �� -" QC RTOUMRTHE AMOUNTOF ___ �_ __ _ EXTEHT i \ --- __CONSTRUODON. _ - NECESSARY FOR eN UNITARY SEWER SE RE STORE GRACE. _ y SAN PS N i �'" �. i SEED AND STRAW. _ A(BEAWR,E Y _ _____--_ /41 0 PRI STEEP _ _ _,- i __-- ___ E[AMICTOPES EFLAY O > s w F— �' A[ec-.IurzLE000N,1'O/SCR/nCAC SLOVE9-vaESER1E0 \ ' O m ' \ g �I - ' \ o w E. Fn P: SHEET SHEET C3.15 \ Q SCALE I'=20' murw ., W E.. D2V 40 6HEET W 1 wni.mv . CHEET]21 3HEE� Sg_FE[C91 �OBO34688 C2.'.. MATCHLINE SHEET C3.0 �t1mm mw V F \ SEDIMENT BASIN IFI 1 /p a/ — '/ FV6 �2C RE DRAINAGEAREA i5.8RAC TOTAL STORAGE REOUIRE0: 2.088C \ TOTAL STORAGE PROVIDED EBBS CY Ow TOP OF DAM ELOMQS BOTTOM OF BASIN ELEVATION: <15- 0 O�U \ \ _ 's Oy07/2022 ' \ \w \ \ \ '•// le'/ // O R. VAN NNEDKER BY ' \ •1 DJ. 0ENKO CHE�KED BY —F — _ _ --_ \\ P »• \ I _ / • CKOTARSHI _ _ \ M _ J _ i i RIOCOMMONSLLC� 1 -- - DB. 5085Pd. 669 1 USE: RESIDENTIA w AlHEM1RLECW�i 1%GlS / LIMITS OF DISRJI BANCE=1082 AC p ' CR[f -SLOAFS-MANAGED\ �7.108 AC-ol O a 0 s I X m aals SF fA O z w B �owgi NS -E z aI SH TC3. SHEET C3.1B \ Q Fn IS �7 W %z / sHEEr ca so SHEET /3.21 P—BFTq MAP SCALE I'=2tl �'.no �o m ,3.23 gF Section 5. Stormwater Management Plan (Provide a reduced l 1x17 copy of the latest stormwater management plan. Do not reference only.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County SCALE 1'=a0' LEGEND \ / / ' _ _ _ \ • \ `. - P `� �\ —/,__ \ \ #_,--_``_-- ---_// _ Ems_ ________ VlfpN iN ri \—�-----------------TC = TIME OFroucENnunorv\DRAINAGE DMDE_-________' /\ -_.___--- I _ __ __ ROOF DRAINPIPE CONNECTIONS mx r�x Tr —." Iw Et � _____ __ 'SS/ONNIf+V\ �.`�"aa 1 \ `� ��— _ _ d — — � Io r- 1 E- E p — `a 99 \�.awsiouaa�r< \ FYI \ — 1 _ \ `. �. - _I j \ \ 1 Tc-6MIN A' _ 6 1`1```\�;. `I �� = Tc6MIN / \ I Tc=6MIN q1 - _-_-____ _ - - 1 I qo • ` ` - / b r6 _ 8 _ __ ro. \`..\.` \\ 1`II\ 1 M1 _ d E4 i ` e _--_— -- __`�_�__ .\.�—�_ �.\.� II �!/II ,'�' j 1 zeal �` 0.29 \ /.m' p I I, I 1 I 214 D]9 Tc=6MIN '"°� / Tc-6MIN O _—_ �� _ �.\ �`i),i'i'—.'r\rIi IyGTe .",,,<°,tri „ e`., I,.1,• .", yr _ \ ` r I0.38 6 MIN / i I, Tc=6MIN If k III .1 I ' ' / X r''i 7 l / r' / 0.11 ' O — / D=234 D]9 '— ow Tc MIN 204371 6 Tc 6MIN 6MIN ' ii_ -\I`� _ - \ ` \♦ 51 ` I 1 1 �' y'r P r TC MIN =63 XI I /2_ I I I 1 rm 1 1 1 r' it 1 _++ez / D5 0.90 D7 0.90 0.06 I' % / L /� LD.12 1` Tc-6MIN V 1 21D Q6ns T�=6MIN 11 11 1 1 1 1 1 I I I l l l I /' 7 �z/� 282 0.40 l/ io 0.36 ', , / 1 11 1 D6 0.90 0.08 D8 0.90 Tc = fi MIN / i 232 0 79 ' a , 0.11 0.06 i l i i r r l l' r J l l 0.40 yg+ r *r / T<_ ///I I� 1 II i 1 II I it /r ;l •i .\` / i v1 _ 6MIN Tc 6MIN ° 1v I 1 � / I 1 ` r I 1 I T 6MIN rl / O d I _ y IIII II�I'i/r' Ali /r / I 1 v �� II 242 0.80 zro — `�. w ' _-0 r / 0.20 1' Di 0.90 244 0.62 I'1' it i I 0.14 .l Tc=6MIN D.D6 " I 0.11 Tc-6MIN T bM]N I _ �z/: 'i / ' r/ l' i / �'r' 1 I II / (\ I \ •d' '3 208 0.80 D1 090�I D71090 f III/1�I-1 7A 0.12 c Tf 41L"" 6MIN - r 1 .. '4 • I ° MATCHLINE SEE SHEET LBY r 0210712022 I. DENKO CHEI BY C. KOTARSKI z a C) Q W Q w Q QZ Q H W J Z 1 46883 L 06.0 SCALE 1'=W LEGEND _ _ _ _ _ _ _ �� \ P ffmr�n.rr / I 9oz \ mro O w 6a _-__ _ TC=TIME OF - _ _ _ - _ - CONCENTRATION % _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___ / DRAINAGE DIVIDE _ _ •\ `' `� I\ 10-17-07 < _ ROOF ORAIN/PIPE CONNECTIONS _ - ------------ - \ 902 O.BBc �\ / \\ Ps _ _r__ \\I ` nvmcrace rsu P _ w _o / - _ _ - Z• C MW � W 4 IA -________" _ �__- - D7 0.90 %� •�� ,"_ Di 0.90 ``� \` 1�/-` � ORA OR. .az DDRL o �D__ 'HI £ TA 6 MIN w 8100.3 y Di 0.90 Di 0.9 Tc.-6MIN _ _ _ _ �- 1 U.12 U.12 J m Tc-6MIN Tc-6MIN _ 3 1 o .17 -' zi6 o.ao z1a a.7 _ zzo a.7e 0.29 - _ _ _ 0.49 0.32 II p _� tr^ / / T ` r I / / oz/m/zozz ifT Tc=6MIN '`•� i Tc-6MIN Tc-6MIN li O AN NIEK _ ®e ; e 7t, V RAwx BVE _I1 o` II .� R. R 86 ofslBrveo ev 14=6MIN � �I I • CHECKED BY I" y�r / •r ` D3 0.90 I D4 9.90 _ _ _ C KIARSKI 2ao o.e m i• / 0.20 i 0.020 / r Ir / / • I^ so• y■ _ r I, l •' I Tc-6MIN 6 Tc=MIN Tc=6MIN / / _IF / • II o D2 IN �I TC o 6 MIN .. - , Tc-0.06 ' Tc-fi MIN / / Tc-6MIN L " __ _ _ __ 6MIN 25 0 6 e z vd T b MIN W 5 0.19 Dr d o.os I I -_ O o z_ I -Tc--6MIN T_ 6M I TD9 0.9I0 _ 282 0.4 0.120.08 A \ •. 1 _ iII HI o/ 90 c=6MN s 256 o.7D0J o W Tc-6MIN Tc-6MIN 0 yg9�g ;^oE 034 - I J ES Tc=6MIN !TC-6MIN x a I \ ,6 __---2460.5 0.23 Ur � ' / T -6M IN 230 0.43 242 0.80 c - _ ' 0.20 \`� Di 0.90 244 0.62 - - » I�g '' I ` 3 _ 4 / Tc=6MIN Tc-6MIN I Tc 6MIN Do.lasa zse osa ` F Ma 0 11 _ J I 1 46 886 NMATCHLINCE 5�EE 5XEET C6 " _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 3 5� - 231 z30 MATCXLINE SEE SHEET C6.2 HEfiX 'g -2 ,3�C. r Er _ I' \ \ I I I BC6.1 EF TC 6MIN �. �I L Tc-06 MIN ! ` Yr Y3/6 3 � Tc 6 Mw ll .a V et 6 MIN Tc = 6 MIN 2100.6-r/_T_____ �' � 282 0.40 0.36 D6 0.90 0.08 I D8 0.9 _ I I P s ` I Tc=6MIN Tc=6MIN _ 232 Q79 / 0.11 0.06 1 258 0] \ Tc-6MIN Tc-6MIN I 2.34 F Tc-fi MIN / I E d Tc=6MIN \ = � I : 1 1 a \ - -- A -0 I 1 T -6MIN as 1 a `s" 2300.43 1 �f Dl 0.90 zaz 0.ao z44 os ; I^`f ^e6 S \'L yy m --- T�-6MIN 0.06 0.74 Tc-6MIN I Tc-6MIN 1 Tc 6MIN E I 4, -S 208 08 �> D1 O.g I-D110.90 , 1 D1 0.9 0.1a __ _Tc 6MIN CB 0. C6.1 - D.6a xti`e MATCHLINE6EESHEET Tc=6MIN .. _ �c�NilY O 30 .ss - 252 0.8 �` I 22fi\OB z7z ass `��� I DA.E 0.13 I p 0210712022 o.z5 0.11 ,. ,, \ Y, _ � z7a o.71 0 _1 e`e-v MIN j_ _ Te=6MIN T,6MN T,-6MIN ` _6MIN .1 23 __ _ Tc-6MIN _ _ - _ / _ _ 'ef " ♦ - _ _ M AN NIEK Q _ ` omwx av 31NI' x 150ENKOBEY _ c 6 CHECKED BY ___ - - 0.78 Tc=6MIN __________ ___ - ___ --_ '� � �� � ��.��� \ ��� _ ��� � �` 3080.E d°// - �I II ••• WET POND 0.30 - 0.48 O £ W a ��-i' --___-_}I'_•O� l��__ - A 4 V '!� O.zfi - Tc=6l MIN a za >L T =6MIN _ lLL Q s 1 r / � F p � 3 p / O i B --_______ _ _ _ V 0.29 W .Ea '- _ __-�" ___ - SX " - _ /10 i _ - N-U5---_ ' '------------ SCALE 1-=30 LEGEND i - - - \ AftE4 i �� -v - TC=TIME OF CONCENTRATION r _ _ i DRAINAGE DMDE --'-"-'-- ROOF DRAIN/PIPE CONNECTIONS 8 ' 46883 6C6.2 @F L WATER QUALITY COMPLIANCE: ' %//// ' / - \ —' \ \ ' \ _ THE DISTURBED AREA OF 1692 ACRES WAS USED FOR THE WATER QUALITYANALY$I$. Mi1ff PROPOSED CONDTION (HERE WBJ.// \ LEGEND LiN OF BEE ACRES OF MANAGED TURF, AND 10.12 ACRES OF IMPERVIOUS COVER. THE REQUIRED PHOSPHORUS REMOVAL IS I7.90 MVYR.'/ / r / ///� / +\ \ \ \ \ , / / \ _ ._ _ \ \ \\ \ -- = = \ — LIMITS OF DISTURBANCE Z�fK ya ANNA LEADER WET POND THEER REMAINING 403 LRNRWILL BOEP PURCHASED FROM AN$O FSITBNUTRIENT REDITOBANK.INOSITE / � /r// / ////// � — -�' \ \ \ \ \ ` / / ` \ \ \ \ � _ — >•>•>•>•>• DRAINAGE AREA DIVIDE PHOSPHORUS REMOVAL TREATMENT WHL ACCOUNT FOR OVER73% OF THE REQUIRED PHOSPHORUS REMOVAL REQUIRED. /{/- / TIME OF CONCENTRATION A OMKO WATER QUANTITY COMPLIANCE: THEI%ANALYSIS POINT PORTERS PROIECTIS LOCATED NET SOUTH WESTOF THE PROPERTY EN MEADOW OW CTHE SUE DRAINAGE CURRENTLY LEAVES iHE$REMiHREE DIRECTION$,NORTH TO iHE$iORM NETWORK MIOHN W. WARNER PARKWAY,/ SOUTHWESTTOSHEET FLOW TO MEADOW CREEK AND SOUTH TO A DEFINED CHANNEL THAT OUTFALLS TO MEADOW CREEK, ALL ONSITEDRAMAGEAREASULTIMAMLYDMMMMEADOWCREEKATTHEANALYSISMN .T MTALDRAMAGEAREAATME ANALYSIS PoNT IS2,%3ACRES. THETOTALONSUEDRAMAGEAREAIS18.92AMS.AT=HE YSISPoINTMEONSUE DRAMAGEAREAI$R6% OF THE TOTAL DRAINAGE AREA. RUNOFF WAS ANALYZED AT OUTFALL$ I AND 2 MR COMPLIANCE WITH ENERGY BALANCEFORCHANNELPROTI IONNDDETANMGTHE10-YRPoSi DEVELOPEDMEA OWR MB60WTHE10-YR WI DEVELOPED PEAK FLOW RATE. BIORETNTION BASINS WITH ADDITIONAL STORAGE CAPACITY AND A LEVEL I WET POND \ TH UDITIOHAL STORAGE CAPACITY WERE UTILIZED TO MEET THE SORMWATER QUANTITY REQUIREMENTS AT EACH / III I \\J \\ \ \\ \ \\ \ I I rv3 OUTFA TWO AREAS OF OFFSITE DRAINAGE ARE MCLUDN IN THE ANALYSIS OF THIS PROJECT. PREDEVELOPNOFFMEROADDA MCLUDESAREAWMWM OROAD TWILLNOTBEMSORBEDW MZPWHCi(OUISIDETH LOD)BU E ES DER M THROUGH THE PROJECT AREA AND INTO THE WET FOND, THE AREA WAS INCLUDED IN THE ENERGY BALANCE EQUATION ASAN/// / ADDITIONAL FLOW AS IT GOES NOT NEED TO BE REDUCED WITH THE IMPROVEMENT FACTOR OR VOLUME RATIO. THE SECOND AREAOF OFFSITE DRAINAGE AREA MCLUDED LATHS ANALYSIS IS THE PRE ANDPoST DEVELOPMENTFLOWS FROM THE AMACENT PROPERTYRIOCOMMONSTOTHE$OUTH.MOMO DEVELOPAINNTWILLBETH FIMTTOBEBNLTA MSUCHWILLBUILD \ �/ \ \ —� \ / / / 06m EVERYTMNGNECE85ARXMSUSTANU MCLUDMGOFFSTTE SEWERCONNECTION, NDEPNDNi WATERLINECONNECTIONAND— ALLMMESORMWATERMFRASRUCTURE. MEMO POMTPoNTI BE BNLT WITH MIS PLAN IS ALSO PROVIDMGADDITIONAL e CAPACITY FORTHE WATER QUANTITY REQUIREMENTS OF RIOCOMMONS. NO WATER QUALITY CAPACITY IS PROVIDED THE ANALYSIS OF THUS PROJECT INCLUOESEXISUMG PRE DEVELOPED CN VALUE FOR RIO COMMONS OF M TO MATCH THE CONDITION$ / / -- / / SCALE 1'=EP ?pp&a OFMEPROPERTY ODAY.APOST DEVELOPED CN OF]4 PROVIDED BY THEM ENGINEER WAS USED INMEPOST DEVELOPED / —�_ 36$ w CALCULATIONSTOSMETMPONDOUTFALLASSIIMMGTHEFIJLLDEVELOPMMC UIONS.MOCOFBAONSPRBANDPOST / / ___ _,-I e a W / 0 W 120' oa ca DEVELOPEDARFASMCLUDMGTHEMCREASEMVALUEWERE ML CLUDEDMMEENERGYBALNCECALCULAHONWITH _-_- 1' i \- _ -_ _ _ ME 0.8 R&ROVEMNi FACT00. \ / / ✓/�///� / /// // c�•�-"`_ — —_ \ `� ,//////�/// /�'///I I Igo\✓� „"%'�,_-------�_I�ji ;�`,\�, I \� _________- +.. .�,`�'�.,,,;',.� --"_-----"'�',i� >= ----- ��,�;',',' pll /� � o ao _ \ \ 1 • .\N \, \� _ _ -_ PR2-0E I.. X31TE _ I J \d" \ `' � `� _ _ — i / _/ i PREA�1.8$ ACREB _ O o n FN=61 0210712022 -_---.---__ _-'Tc =samd -_-- J �"A" I t; p wTe `}`a _ 'OCNNCENTr£AfEg / -FLOWy1NPAVED1-i _ ♦ C,\,�\'' \ / R. VAN NIEKER IGNI BY rr__ - - -- ``)' ' ' ',� FLowrvs - _�►�i>� I •� DZSDENKo _ \:••- I ! , i .'' nOrvsmoN OF 'r c. DEN O �EED \°° 1 CpNGEMPAyED FLOVy G KOTARSKI OF �, >/ Iva eb I,� / l • • _- ----________--. ;;O�ET ♦I Ili// �/ ' �..' , % """"""--Trr-- l , FLow. 11 1/ _ - SHEET / / / II I om i\ °e° fa';s<- ",+-,:i�..;� ,`% f;'!I'II�II I'' �/� ��'�./ ` r��y�r•a _ — rLyw.�_e_ i�l l l / / / • l \ °\ \ \\'.' '/',' i/ �i�uii �i''i /,', II,I I T N'HIONJI // ' ` ___ 4 / / / // • �„ $ OF Oh'TYFE i TIUN/ 11 SOFF 'SHEET ,may _ _ K+ R silEEr- " __ -.. ___-� .�i-j"r?�,r(Fiow '. ,'/ I \ \ \ \ -- -- \ \ \ \ \ # 1' �' /; ' / ; I �'I `:��`°,"'A ll"l'ii,,I /p�.'y` I / i�',i ,' ! I �' /� I I'°—/ •/' /// \\I\/ I O _/ / / 'II"'lug' "II',''. �'II 1/ dE-DEv>=Lo oorlslTEDA3 Q / J/✓/ / I �\ ( \� le 'IA''I ,'III I' nNl I I �' i i / AScm-as]sE lil l/✓ / \\\V A� 'L,' 11r,41ili%�' I' I I i/ 1 A 'I I I A I < Lu Q E PRE -DEVELOPED ON SITE DAi: _ - - \`� e�, AREA =IU.7%ACRES _-___ c.NI D ` / I A \ �I\ 'b, I'''/ I r / , A — _ -/ cN 5B .... FLOWIUNPAVkD) / f Z / i TC 9.1 MIN. `I m ��% I /' I (;I, %w �;'/�;P /';,: � I �� �; 11'(•_, I ---- - _ - •--" -- I , , / 0 0 g� -3- —------ - - --_- w ?3 w `' _ _ IRE-DEy1iQI LOPED f O"SWR ROAD BA: AREA =0.259 ACRES CN=9$ Mloe xo. Xf 11 / o ° / _ram \ / ^ \ % % _ '►a .,' _ ` \. �;I \ `, I \ I '. \ �� I / m=e.B Irv. 4686 55 / 1 1m It I -� m 1� i-a�>✓rlj w[ i' � / ,��Yr iil \ `vri \ im �I� ii;;iff iiiiiE MBTI MATCHLINE SEE SHEETC].1 , 1 ET L !•!"•r�!•" !• DRAINAGE AREA DIVIDE TIMEOFLONCENTRATICN �4f ORFDEVELO oN-sve ona IRa.6TeACRe TO-"IN LEGEND LIMITS OFDISN \ �.J\ jvO.jp�`.c�ImO ,F,i• N-cIAN1i2o0.N.-9�02F[sN92 +YRt�V U��C c'� SHE -v-10.7MACRES_-- - �sHALLow. \ V F �, I'II IIII/r ��/r rl r r:l�%rlllr r II I AREA o.Tx ACRES '--' CONC 1;T ED / A CN-fib TC 91 MIN FLOWNNPAVE% V > �I ��I Ill/// jl I Shvv - - - - -_ --# - - - - -- v 1 I;e SCALE 1•=60' ( / I ?`ry `/// j l�1111 l l -_ �� \\ ;7_====____-___, -- li--- -- - A III \ °� \��\ \\� --�--_-___-_,--_— ��Fi�=-=_%_ _''.:• i011 `�� `:I``I1 I; ' ' ''// / \ ' e \ —\ ` — _ _ .• ' _ _ _ _ _ _IVEY PREDEVELOPEDO o o n • e / / — ° \ — _ . _ _ -� r_ .\ ` \ \. , , ` `/ / OFF -SITE ROAD RE: AREA =O.P59 ACRES wie 0210712022 TC=6.0 MIN. p MATCHUNE GEE SHEET OF - - T' .� ,'_ __ \`. \ I / oPANev NNNf NN` NNNf NNNf NN NNNf NNNf NNNf N�NNNf NNNf NNNf NNNf ��/NNNf �/t t `�-� _ --5 �_ Y_�_ t �� t,t t t t t R. VAN NIEKER _ _ -7777-777- - _ \ I oesierveo ev J. DENKO \ �° l l l 11 y�/ // / / �/ / �� = _�_ _ —ICP-� _ i 4%i.509%p'-%r5C3f S = _ _ _ i - _ _ _ _ _ ` - `I ` r I' " /,I /// / • l/ q / o°°�/ / �/f -_ ___- -� S' j./� -- _ � -� / '' / \ _\` -- \\ \ \ I r I I I i i I • cx[exeo BY I I / /� / / / / /J/j < __ -�-I�j �=�6—FJ / i _ _ _ _ 1 _ / - ''/ / _ - _ , I , Ir //l I '\ • C KOTARSHI %3.=6 0, ° / // % f //%////,/j/�/�'�'✓//—v'=v3}i_i=// / jam=/ L _� /---�\ \�'�� _/ �,'//•'%' /r/ r/, //l— lL •• / 11� //p / l / •�/ ,�d/, ��,/// �`K / / / 5� —�� // / i '—_ \�i,, / ---_ \ \\_ l / l \ J I I Jb / //,'/, }�°'/ / / / .�/�/ / / / / // — \ \ \ `c'\\�'�AIIyII,s uoW✓ / / / \ NCE FLOW REq NATPAVj.0 1 (2r' / 11 d/l •�//``'%' 0p'91y`�. Ni, �` \ \ / I \ / / / / / \ \ \ \ -RI ECOMMO SDA: FSI S4 �. , ry A l I V / I / — — \ 4\ AREA=6.35ACRES/ -IF\ \ V / _ E64MINLu / II/ a SITION OF� / \ �2 F P4QE (TYP.) I //• W \ c� 100FSHEET\FLO\W I \ I 1 O m LU ell j// j/// // i. // / / I \\ // / r / I W %/ , w ELI — — — — -- /\ `\ \\ \ III \I I 46663SHEET NO L DRAINAGE AREA DIVIDE //i_+ \ \ NA \.�\\ TIME OF CONCENTRATION // // \\\ \ IN \\ \NN IN, \ I \ \\ \\ \ \ L Yl SCALE rxa. '/ / j / / / / /A NA IN / /i jj / / / / / \I� — — — — — — // ✓l \/ l/ EA ( / ///r / / // ,'i, _:-Y \\`\\\\.DEVEXO �DDOI = LPV OBIORETENTIIOw. /// \ AREA DTRLN ACRE - AREA III. CN-7E l \ \ l� /l TC B O MIN_ \ — /V ✓// - _ TO S3MIN' / / iii _ -"I ELOPED DA 213 \ --_-_ - ' pISTURBEDNNDETAINEO ��//�/ / / l I �TJ/I I ✓ /\ ,t - r_ \`1°1 ` 1 TRANSITION OF FLOWWPE rl - _ ' AREA ACRES - - - SHALLOW CONCENTRATED FLOW _ \ _ - - SHALLOW CONCEMRATEO FLOW _ _ - - 1 TC RG MIN. \ 1 1, �• __ _ _ , \ it -" "°S IY _ _______ _ _ _ ___ ____ __ _ ,-- {/ J \ \ \ \ ________ -. \ III III ,o\I\I I \ II AYN \%/\/ / \ /'--`_ \_i _\\`\ III II_ :III`` \ - - - TRANSmoN OF FLOW TYPE (WE.) ___ _�_ __ �j 9\ o\/__\�\�_\•A ll i iWOF SHEET FLOWe __ 1L0'OF SHEET AN FLOW \o\\\\l\ IEVEL2BICRETEMION % i,�/1 / // - '/I / l I / I I \ \/, / ; _ POST DEVELOPED W 1A I l -/ '•,� i IF TC SHEET / TFLowOI n\ yad eI m,ceic- ---------- -1. `° \ \ \\ _30 \\ `Ib I I 1 1 I / { / POST DEVELOPED DAIB-WET POND. \ \ \ \ ,$ 'l / AV A I I.I 1 I I / ' , TR NTION OF I A V A I I ✓ \\\ \ / tea ` P I\ \I 1 , \ 1� II \ I 1 \ /�` FLOW TYPE ttP.I AREA=14.498 ACRES / e \ 1`SHALLOW ` / PII-CN 80%P • 1 \ \\I /m � \ 1' / _ TC 9.4 MIN. 1' t - - , I \ e \\ /✓ // e I — \ II , C POST DEVELOPE-D i -r I&H&I I DISTURBE OUTFALL 1: AREA 0.5B9ACRES TC83MIN CN40 - \/ el l v/ �/ li l�/ m POST m ,— m m m II e// i a// /° /= V } \ \\ �\;` - , \ A.bo• 11 \ I OFFSIDROAD DEVELOPED I; a / NN \ _ AREAIF X=0. 9ACRES \ ` _ � / _ i y � C � TC 8.0 MIN. SNNNiegs/'1�, _ /s � �NS T� llnL•/•=s ��� • .� ��T>ta a,sa!>• r\ iL /'6m /--" / -� j�`�/f��� �MATCHLINE SEE SHEET L]3 oraE'll H 0, llSSwI, R. DERKO ' lk. No. 5779� SSIONRL��G\? YE Sys NIX F $F 0 s 02/07/2022 'o R. VAN NIEKER •• oI BY 'sDENKO CHEOIDD BY • C KOTARSHI • • 20' • • • 0 z 0 F 1 46883 C7.2 L OF FLOW TYPE FLOW ITVP.) SHALLOW CONCENTRATED / lFIL -7111 J/✓// //I I \ 1 \� \a`; 1'111 � li'h I� I'i y�' i / � - .Il �li/////hl 'Il l i I // P If l �d 1 /111111 I I l , �OISTON URRENDETAINED. _ c d TO OUTFALL I:— AREA AS69 ACRES'- \. _ CN TC=63MININ. 66/ - / TC� E C1499ACR ON IS -WET POND �X / \ M4TOHLWE BEE SHEET C7.3 / s °ss 'ss e sss>t / II I 1 i � \ l I / I / I ✓2 TO=60 MIN. OPEC OFFSITEDA. / ACRES CN 70 l / 111 1�� l / � h/)� /�r// M,zs✓, f/Y/// / / W1✓/ — / i' / // / / / /i— —= — \ \ \ TC 60 /� \\ uy,Vj dam/ ///,�llll r/�!•E11�\A \ V 1 // /// /—�— C� o % /llll(1�� / �� II l l:j\\ \ \ \ \ I // ��r 1 \ 1 I / `7 /l / yy/1111 jf Y (17 \�---------- / / I I Fj I IIIII / / // I � / nA \ I/i� I IIIII / \` I I l ll/ l � I I l Il \ \� ��\_ 10\—'--__--_ _ —/ /IC✓/ II / — — — — — txll x O! R`a Y>9 •��, a. ouao Lk, Nu. 57791 � f0� SS/ONaL��G\? 0 ¢ 02107/3033 O R. VAN WESER •• oD BY 'sDENKO CHP�KFD BY • C KOTARSHI • • 5= 60' • • • 0 z 0 L F 1 46883 C7.3 Proles Name: Rio Point Date: I 9/2S/2022 BMP Design sivealkernp Lin: 2013 Draft Stds & Specs Site Information Post -Development Project (Treatment Volume and Loads) Land Cover (awes) A Sells IT Sells Csoih Dsolls Teals Fore"IninS (sues(- undisturbed, see r.m ens aorrebrestea Om Managed Turd (social - disturbed, gntletl foryard crothertudtobe 2.82 6.20 9.01 lmperviuuscover(acres) 1.05 LUNG 9.91 Constants Runeff Coefficients RV Annual RalnX00nAes1 43 ASHIs BSolls Csplls DSolls Tar t Rainfall EveMOn6as) 1.00 Forest/O en5 ace 0.02 Q03 000 0.05 Teal PhosphomAITP)EMC(mg/L) 0.26 Mansgetl run 1 0.15 1 Dw 022 0]5 Tom l NI,Wn DN) EMC(myL) 1.85 Impervious Cover 0.95 Q95 0.95 0.95 Target Lead (lb/Are/ r) 0.41 >j Inniuesseame0on Factor) 0.90 wrestlopen Space Cover (acres( 0.m W.Kinted Rv(Fores) 0.00 %Front O% Managed Tuff Cover (aanl 9.01 Weighted Rv (tail 0.18 %Mamged Tort 48% Impervious Cover (ecru) 9.91 By (ImpeMan) 0.95 %Impervious sin sea Ance (-I 111Un LM RV g39 Treatment Velum. Uwe-ft) 0.9233 Treatment Volume(ablc feel 0,219 TP Load pb/Tr) 25.27 TNleed(IbNO 180.78 Site Results (Water Quality Compliance) Area Checks FOREST/OPEN SPACE Iasi IMPERVIOUS COVER(ac) IMPERVIOUS COVER TREATED (so MANAGED TURF AREA (so MANAGED TURF AREA TREATED (at) AREA CHECK DEQ Vkpnia Runoff Redu<Non Method New Development Compliance Spreadsheet - Venion 3.0 data lnput<alb aMP0esi9n Speci)icodom List 10l3 Draft SIFF & $pass Illusions Summary shown <aMani values Site Summary Project Title: Rio Pound gkulHbn pis Data : 44790 Prinl Preriary Print Total Ralnlall= I31n<Kn Urn I one! Cnuar summary Forest/Open(Ares) Managed Tudhicrel Impervious Com(acrnl A SNk O.m 2.81 1 1 1.05 BSolls 0.00 6.20 1 8.86 [Sells 0.00 GO 0.00 DSolk 0.00 a" 1 am Totak YOITwI 0.m 0 1 9.01 a8 9.91 52 1892 100 D.A.A D.A.B D.A.0 DA.D DA.E AREACKE. am 0.00 O.m MOD 0.00 OK. 9.29 0.60 O.m O.m O.m ON. 9.2) 0.a9 Ow 0.00 0.Go OK. ).]1 1.05 On Don O.W OK. 6.59 0.75 O.W 0.00 ON OR. OK. OK. OK OK. OK. Site Treatment Volume (k3) a0,219 Runoff Reduction Volume and TP By Drainage Area RUNOFF REDUCTION VOLUME ACHIEVED (Xa TP LOAD AVAILABLE MR REMOVAL IIb1, TP LOAD REDUCTION ACHIEVED (Ib/yr TP LOAD REMAINING IIb/yr D.A. A DA. B DA, C DA, D D.A. E TOTAL 2,533 G. 0 0 b320 23.32 1.26 O.W O.W 25.10 1219 1.26 UOD O.m 0.00 2.m 13.55 11.03 0.51 DCO O.W O.DO list NITROGEN LOAD REDUCTION ACHIEVED Ilb/yr)l 58.08 1 9.22 1 OwOm I DOD 67.30 Total Phosphorus FINAL P IIb/yr)M21�21TP ST-D VTLOIP LOAD REDUCTION ION REQURED IIb/yr)TP LOAD REDUCTION ACHIEVED(IbIV)TP LOAD REMAINING IIb/yr): REMAINING TP LORD REDUCTION REQUIRED (lb/yr): 3.96 Total Nitrogen (For Information Purposes) POST -DEVELOPMENT LOAD 116/yr ]gOJB NITROGEN LOAD REDUCTION ACHIEVED IIb/yr) 67.30 REMAINING POST -DEVELOPMENT NITROGEN LOAD (lb/yt)l 113.47 Site TV arM land Cover Nutrient Loads 911e M Treatment Volume Xa TP Load (lb/Yr) �.211 TN Wad YINr) Total TP Load Reduction Reeulretl Ib Site Compliance Summary Total Runoff Volume Reduction IN) 4,320 Total TP Lead Reduction Achleved 13.55 (lb/vrl Total TIN Lead Reduction Advkvatl GEM UI I Remaining Pon Development TP Lead 21.72 IIb/yrl Remaining TP Load Reduction IIb/yn 3% settled OAA 1 DAB 1 DAC 1 DAD DAIS Total farm/oOeu(Ares( Om I Om I Om I am Om OW Managed Turd (aeas) )JI 1.05 1 Dop am Qm 8.76 Impervious Cover (acres) 9.29 O.m I O.W two 0.W 9.a9 Total Area huresl I 17A0 1 1.65 I OAD I OAO I GAO 1BE0 Drainage Area Compliance Sumnary DA. ♦ DA.9 DA. C DA D DA. E Total TP Load Reduced Ib r 12.29 1.26 1 0.00 0.00 DCG 23.55 TN La ad Red ... dllb/yr) I Sa.W 9.11 I W 0.00 D.W fi].30 Drainage Area A Summary Land Cover Summary A Soils BSolk CSolls Dsolls Total %oi THRI Form/O...(scres) OW OW OW 0,00 QW 0 Managed Tod hical) 2.81 4.W 0.ED 0.00 ].]1 45 Impervious CYverlacrnl 1.05 8.30 O.W 0.00 939 55 BMP Sele<tlnns 1 1TAo 1 Managed Turf Impervious TP Load hem UnueHed TP Downstream BFnv rraatmant Tv a¢moved To R¢ma;n;nP Praahe 4edlt Area foyer Qedll upstream mad ro Ptaame Treatment to be laeresl Area laon) Velumelflal Prarde. ((tail) hies (lb/Yr) (lb/Yr) Lonp .Yed Total Impervious Over Treated (acres) 927 Total Turf Area Treated lavers) 6.59 Total TP bad RaduHlOn A<bkvad In DA. lb r 12.29 Tea, TN (pact Reductlon Achleved In DA. Jiblyrl 58.m Drainage Area B Summary Land Cover summary A 5011s BSolls C&IX DSOI& Total %HTOMI Forest/Open stern) DOE o.W 0.00 ON D.m 0 Managed Turd lmn) DOG 1.05 pm 0.00 LOS fie Imperviomrnve hmme) Om Om Not Ono Om 36 env selections I im I Managed Tud I Impervious I I o l0atl hem I Untreated TP I ptT^st vain BMP Tremment TP Remavetl TP Remaining Pnttke GetlitAns Carer 4edit TIBUPer lastlro Pntti¢ Trtetmentmbe r r t Volume inal m, nr.I IIb/Yrl IIb/Yr) a Total Impervious Cover Treated hiserd Q49 Total Turf Area Treated (acres) 0.75 Total TP load Reduction Achieved In DA. liblyr) 1.26 Total TN mad Reduction Achieved In DA.(Ib/yr) 1.21 P3 I an Q0s Sys. n fo N� 3€aft offzg�a F @A $w 0210712022 DRNNN BY R. VAN NIEKER •• oD BY 'sDENKO •CHEcKGD BY C KOTARSHI • r N/A e 0 z 0 F Z O g J U w Lu O H 1 46883 isn C7.4 L STRM STORMS MER DESIGN COMPUTATIONS STUIERFEEQUEMCYF 10 PROJECT: MOPWR LOCATION: count: Neemelx Gesell. 0, J. ROho Gleclletl W: c. Kdaaxl IM15 EXOYBX PNP ITIMO.T AAD:. A. tl) V COFIP. Y" u lN. MT nme MP- OMI, IM4 .0" Q In LVYEIarEIPYnrWNs IIIFA enn 100.'SR v 1111 ex WNIK 11. (2) INEE Es', (I)) me IMV Or ;wimiel Il (14) 9W'E 1,., (TII 115) 1.- ell. Ft.Ft 1. I Tt5 (I61 FLO FMFno l4n (Il) naMI.- 1111 FVCRF I5101101 1C(FPF ADDFF. 77PINET i e. (d) i 1. M 10± O(N OOW OW) OOM DOA' OW) L9)I OOW ali.dU 1109ID 1).1. 11 AW) ('Jwle' I305 ONO 1. 00L m�1a ab IV 3l5 334 3I4 0.1)V 0.110 0Ee Il]I O.3W A]65 AON KM3 af<.tlf 15I1W ]3'WS 0011 IKOS C...1.111 NEI 19f0 O.ISI 411fi NO 1-1. ",1,np]1 5 Ill 'I 04M b7lb 4110 c'-w Is IN Op)) B 1,11. 17 4111 Cah 15 T)1 Ill IC 1M OQO 0<W 0. 00)1 0 ON 0. IWI O3E IM.153 459M 234I 0013 1305 (3mJff e.5C3 ONO 3218 0II1 3f) lia 1G U.IIU O6ID AWtl 03Yl 4(W AOW 6DU +.416 a5b W1 i]]70 i)WO U. 3U IS.W] CiwW YtlW OWI O13 O.IW m ]DIN Ci Jil 111732 ON lbs Nb Nd I TI Ills 1.7 OVB9 ION ONO BWI 0I"1 C59450 4Yr.556 M717 Clwls 5.015 4500 2.07 0491 4154 0-14 a ON ]41 101 1M O:aM 03W 01 - O.a1.i 0NO 0039 8303 1.3M a1B IN 4A III13±IM O.IN 15fM Ci-1. 5.03± ONI 40.5 OOT 2Po IN 1. U1N 411a 025 OYN ,Me B351 ),SN a58 Ne 456.W ITtt0 0011 isNII ciww 7155 OA)1 5135 014 ±S) 1. 1. IOSO .1. 0. 01. 0. 114 I)W U. ITR 4565W 450.3N 1.411 0 IS Wa 11m . 1f54 fOl 0.1 a55 I. 1. 0.3. 01W OaIB IIN DOA' AN) A210 B.1 453.879 453ON 101.325 0M IANT (Am yr 10176 ON5 63W 0M1 09 Cir Idw 19 N COrvtr d 373 314 3R 1.0 0.110 0,163 0. O(W AOA 6210 ]I4V Vf.6lf 4336N ISOIVO Sn' 150A COwb Ytlll ON3 13(1 0w x Ciwtr 1 4fA5 1)16 1 M IM CII� )9 ±21 3±4 1M OQ1O OOM OfM ]4)0 1. 1Nl 5056 .1. 4111. C30T 44N5 O.IEO 11 ON Ciwl. ±IO. NO 4N1 31.2 00±1 4153 0481 0 YN 6 NO 6110 2N5 460 BIT E0 EN =I 449 0014 15 ON C-1w B _ 0140 m umJ. v wafer N .1 2(tl aW UlXU OtlN O3W }IW 1ON KIW S.65I 131W U. 4OE7 4]235 ONO 34.W. Chvb ]1505 OW3 1WL O.IW 431E M C.- 19 -.0 9 ON 305 2W 203 0.110 0.170 Op5 35W BIN tl39B S/CB 14M) 410.65 4II pIJ NJ40 B.IW Ic. C.. "Ole ON' l+.)TB OBI1 2M asn aK O0ro 4fA) 01ro fiM) 6a0 0aro M09N H0.341 z)u 0T5 1sro0 cwlu a OW0 n I 7.1 ONO ONO III 3W 3M O.III 1111 . IP% IOil I'll I. IAM 4aE oN 4b.6 )PI28 I'. i Cwl 61. BI1 OM O.R4 0412 Ill MY $TKX XYOPAULIC GMCE LIXENULY813 INODB3LEENHEMB I-ITY 10 Yeel PROJICr: So PoIM DESIGNEOBY: J.0. W CIRC. G Kd98Kl 'T. NOU" ONGR IHN" FICIIDII sDFEs F 3UBIBIB OSE sramx ELEEG m w e 1« ve ro a Y� QNi Yana R nw xe n x x durcnox REY. (M lap IPo lRM1ll A A 102 H4R 4B 301E 1m.69 OW% O.W BW 025 0 0 0 0 0 0 0 OR6 0 ]RUE 0.16 11435 132 OK -T.W 302 iZl.R % 45.6 5193 U.10% 0.3 ID.B6 3.9 9299 Zi.W 9P.Z] 11.99jj%.O1 1 OK d.%22/ 425.1] 38 D239 M 020% OW Tl.W 285 1852 Ya.18 A31.89 B.W1 1.]9 10.& 0 1318] IA 25 OK -193!2. A'S.8.5 93 1352 ]2A3 017% ITS 231E 2.14 1461 9W Teen 1.412 ON B.. 0 9 M1.F .13 OK223 451,26 93 1451 RN 011% 01 8.55 0So 1195 015 WR 0.Me2 Gee 0.93 o 451.W IW99 OK -915 452.43 24 13R 7807 D92% O25 616 015 1&52 801 1Wll 1 0.61 1.1 0 B 44N 181,54 OK 23 453.24 N 1862 ISM ON% 0.23 801 Ole 10] 882 52.21 053 03] 0.8 0 E. XMUE01 ISdB] Mile OK 8d6 234 4M.W 24 10.7 M5 019% ON 682 D.13 821 ]W W.i4 ON01 O.W 1.17 0 ] 15836 d5239 OK -].W23B 455.34 111ON ]3.W Bull, 0.30 ]W D.M 4W 8.8 1O9 1.2 0 0.67 Q87 2 MIS IW.H OK -7.27 239 496.86i 16 4.W 1712 044% On 8.8 0.3 24 6Y1 IS, D] T 0.21 On ON 7 450.13 IW69 OK -756 2i 48T.1 1] 24 17317 012% 03 Is. 015 0 0 0 0 0 0.10 33 b1.W iF.01 OK dBl 204 4ID.Id 33 18.04 381.N 0.13% 0.5 10.72 0..dS 144d 22.37 3230E ].7] 272 no 4.74 7.01 0 ]RUE 4.45 131.1E Id011 OK AM BOB ME b 14M 49.35 e.%% 0.17 23.3] 1.N 12I9 7.9 101.W 0.97 I].91 3).69 0.N 2.62 0 TRUE 1.18 0.Yn09 M47 OK -22.39 Me 4522 M 12M 47M 027% 013 10 024 1185 7Is Be 0IN 0W 412 04 0W 0 ]RUE 0B1 0.481 =20 1W I1 OK d31 210 44.B1 24 IIN 116.M 0.23% 0.26 T.To 023 9.W El ... 05 O.le 0 8 0.41 0 ]RUE 04] 46013 OK GB5 212 451.W 24 9W I.. 0.1B% 022 5] 013 9W 6So Go To aBE OYJ 0SO 0 0% 0 MUE 0M 451.M MI 42 OK HG9 2H 4M.M 18 9.02 231.12 OWN 1.45 6.So 0..16 7.3 9.26 67.13 1.33 047 M.W 0.57 1.2 0 ]RUE 2W 4 49 4BQ6 OK 41 218 457.6') 15 7 O MM 107% 027 BW ON 5% 851 075 112 0So 45 0% 129 O TRUE Ow d5]BS 161 DI OK 3IT 31D 'E'T 15 S.. 131.>e O.>d% t.18 .1 . J . O.0 10 001 6 Z 001 0 0 0.I O.Bi 11Ne "1 49W 4d.W OK 1.M 1. M1.7 IS 3 M1.45 IT IB% 0.3] Is. 0.15 0 0 0 0 0.15 02 TRUE 04] 4821] 46/.W 0K dB1 3W 134 15 0 14153 0.W% 0 0 0 0 0 0 0 0 0 0 0 0 7XUE o 434 M..51 OK -1251 2W N1.5 15 0 135.32 O.WTO 0 0 0 0 0 0 0 0 0 0 0 0 ]RUE 1 o 1 M1.29 1 446.25 1 OK 3.95 322 1 1 161.0 1 18 1 1.35 151.211 0.04% 1 0.02 1 90 1 D32 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0.32 1 D41 1 TRUE 1 0.23 1451.62 14W.W OK -7.21 In ElN24 -262 'ASES Is 26 112 37 014% 0 M 415 007 2 IT 3 N 787 022 2. 1 1 457.21 1 IS 1 3.87 1 Inn 1 0.31% 1 01 1 B 1 014 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0.14 1 011E 1 MUE 1 047 1 sE7W 1 4 .e OK AM No 1 1 4 'Go 15 SN 11132' O59%OMO 1752 119 425 1613 WA] 403 141 923 04 313 0 TRUE 208 4249 WM I OK -183d 310 4M.92 15 425 012 OS]% 0.1 16..12 10 1 4.27 10.BE 485 1.64 0& 0 0 1% o TRUE 092 CeiM 45072 OK -14 W 901 443.91 15 427 49.8 037% 018 10W 04B OB2 I 69d 1 571 1 075 1 OR I fl]B I 022 1 095 1 123 1 TRUE I 9 IM.39 dS1BE OK 9Y7 3W 1 415.97 1 12 1 0.02 I M.40 1 0.05% 1 0.02 1 See 1 ITS 1 0 1 0 1 O 1 0 1 0 1 O 1 0 1 0.1E 1 024 1 MUE 1 14 44811 453.5 OK 9A 309 435.12 1e o W.W O.W% 0 0 0 0 0 0 a 0 0 0 0 0 1HUE o a36.1z af&Oz oK 31.T siz 44P.fis iz a dI.TT aDD% D D D D D D D D D D D D TauE D MBW a5T oK -T ss TO± d S 15 1W MISS aM% 001 673 019 1 D 1 D 1 D 1 D 1 0 D 1 e 1 016 1 D MUE ON UVON N5.5 oK JW B@ .7 1S 2.83 M.19 O. cfi% 0.01 6.]4 0,13 1E 3.72 672 0.22 aW W C.15 0.35 0 TRUE 2.19 M 119 454.84 OK -T.. 0W MO.39 15 1.6 213.M 0.07% 0.14 3.72 0..W 0.67 BW 4.W 0.58 0.2 25.58 0.1T 0.42 0 TRUE 0.35 MT.25 150.58 OK 334 810 MB.W 15 0.67 41.73 O.W% 0 6Be 0.14 0 0 O 0 0 O 0 0.14 016 TRUE 0.1 WAS 451.27 OK 311 Ps 0210712022 DEMIN BY R, VAN WEBER •• 0JN BY . DENK0 •CHE�EED BY C KOTARSHI • NIA E 0 z 0 L F 1 46883 C7.5 Madvanne nwuxa Tm� MINOR PMa Eder woucaus Pre Lawal... d Onslle Crilne,e Area l pe, M lapel Onslle pain;¢ Area3 pre"" reMvelape d Onslle DralWArea3 Prc Developed ONsim Drainage Area- No Commons Pre Developed OffsiL Drainage Area- Road b)x A I As 1. 3N in T. 6I AM DO 1. 0961 Past Developed OnsIR Drainage Area 1A to OF 3 Post Developed Evans Drainage Area 1BNAOF3 Pan Developed Onslte Drainage Area 2Ato OF 2 Pan Developed Onslte Drainage A e.1Cto0F 3 Post Developed Onsite Drainage Area NUGF 2 Post Developed Onslte Dminage Area 2Cto OF 2 O fsi s areata pond Rlo Comnensto OF 1 TRASH RACK 9 100_YR WSE IYI.Sg RISERTOP S7 10 TR W3E ELEV. 0Y3.[O _ _ 62252 S7 1 YR W3E A21.05 ELEV 417.00 A' DIN ORIFICE \ ELEV. MOTOR / 1 \ / ANY 01ACU ELEV A1D]A ELEV 41074Td GRADE 6' DEEP Side XXT AGAINST BASE OF DI-1 UNDER ORIFICE FOR DEBRIS SEDIMENTAND CLEAN DU]. 9I-1 RISER STRUCTURE 102 DETAIL No Sale OUTI l CHANNEXANNEI PROTECTION AND FLOOD PROTECTON CALCULATIONS CHANNEL PROTECTION(ENERGY BALWCE)-I YR Qs raron-oevroravS IF.iQE reeee- -AARE re eae-oev)IRVsrawx-ow. QsreM. DO CFS 5 0.9p '( IRS - SIT )/ 2.m ♦ IT? DAD CFS 5 1.17 CFS ON FLOOD PROTECTION-10 YR M m andtfava Q"eR EverONTOTnw USQmP-oev PoM w ARM CFS 5 311.6E CFS m HAII I 2D32 CPS s MUSS CIS ON m neeedr n o. rs ro wM OURREAL1.2 CHANNEL PROTECTION AND FLOOD PROTECTION CALCUI MOONS CHANNELPROTECDON(ENERGYRALANCE)-TYR Qa rarom-ow AI<IF, iQ1 nPAa-oN, - RV raeas-oev)IRVlraroeT-oav �01 CPS 5 0800 'I lA • SIR I/ 0.16 M76 CFS 5 0.% US OR FLOOD PROTECTION-10 YR Q,P"roe.-owtrow G Qlo ra pia-aw 23] CFS s TOM CFS 237 CFS s MUSS CFS OR M.I.. Fbm., Frpaw.y` e Pemaw debts and RE1.9e1 OueM1Mwebrrrelw stornc e Papoundentleseded,andbaresolanow IN l"U'rainfalll e Nearing em anbrcM Two AMr e FhwNlm d«.up to rermve Usae, defile and hatable. • A Sol maMenmmlmsaaw. Annually • upon up In. nso la... and Not it. ..a • Repor broen metllantalm oneMS It needed Onetim1Me-umm • Food bnlfer and aeuaue bmcn remewement IaIin P ea ewvd Wor mllmin bul4al • Forabe Sediment Renaval E 5b]yee • Pe Ea.So years 'AWmrnmw ncros and nqurrtN helumq should be ven0ed wiN Merl m'UUPdn tt TOP OF DAM 426.00 CREST ELEV. 40AV PAM TR NUMBER 1. To WIANTEVORTEXI DEVICE MAMAPPMA PIPE NUMB -MR. ORIFICE WITFUMSHRAMI �NLLT FIFE mrrwv GEERA...a TOTE TRASN PA. a ALL slwAc RA 9Rweo waT RE HCT onmmuw nmlm AFTER R raamn. na- RAYTo er1 M RE Fk ENED TO wen erns try' Moray ANCRms EMAw mn Tawso THE NEABBIG A Tstets mrwm Move'..MMRAM irmnrwT BE MIAMI eA 1-1 nen3 IA ORIFICE TRASH RACK DETAIL DETAIL TAKEN FROM MONTGOMERY CGUNTY, MD WATER RESOURCES SPECIFICATIONS 6DIA. X 1.5' CONC. BASE NOTES: 1. TRASH RACK TO BE INSTALLED ON 7ORIFICE AS SHOWN ON DETAIL ON THIS SHEET OR APPROVED EQUAL 2. IMFBCVIOUS CORE AND CUTC£F TRENCH SHOWN FOR INFORMATIONAL PURPOSES ONLY. FINAL DESIGN TO BE PROVIDED BY GEOTECHNICPL ENGINEER. 3. WARNING SIGNS PROHIBITING SWIMMING MUST BE POSTED d. AQUATIC AND SAFETY BENCHES ARE NOT REQUIRED FOR PONDS WITH DEPTHS Ad 6. POND EMBANKMENTTO BE STABILIZED WITH TURF. NO OTHER PLANTINGS ARE PROPOSED WITHIN POND FOOTPRINT. WATER QUALITY VOLUME WOV REQUIRED: 23.IM CF WET STORAGE VOLUME PROVIDED: 27,179 CF CONVERSION FROM SEDIMENT WIN TO WEF POND: • CONVERT SUCH ME An MIN TO WET POND ON LY AIRERALL UPSTREAM CAPE MAEE AREAS HAVE BEEN STABILIZED • FLUSH AND CLEAR ALLON-NTE PAVING AND SEORM DRAIN PIPE OF ANY SEDIMENTS • DE -WATER AND DREWE MIN • RES PAGE AREAS TO ACHI EVE FI SEE PROPOSED EIEVATIONS • REPAIR/CIFAN ALL RIP RAP OUTFLOW PROTECTI ON ARM TO BE FR EE AN DCLEAR DISORIENT • CONVE RT RISER STRUEM RE FROM SEN M ENT MSI N DaNum N TO A NAL POND RISER DESIGN COM PACTION TESTS SHOU in BE PERFORM ED REGU WRLY TH ROUG HOLD ME EMMNKMENTCONSTRUCIION. • WNCALLY ON E TEST P ER S,D]O SO R. ON EACH IAYER OF A LL OR AS DI RECNO BY TH E GEOTEOI NICAL ENGI NE ER. • USE EIMER A STANDARD PROUD R TEST IASIM MORE) OR A MODIR ED PROROR TEST IASTM DISST-USUALLY MORE APPROPRIATE FOR EARTHEN CAME), • ANEW DOCTOR TEST C RECUT RED I F ME MATERIAL CHAN GO FROM THAT PREVIOUSLYTESTED. • THE AN GI NE ER SHOO N C BETTY, AT TH E TI MEOF CON STRURI ON, THAT EACH FILL WYER MEETSTHE MINIMUM DENSITY A GEOTECHAREAL OR CONSTRUCTION INSPEROR sxaum nE ON SITE CURING EM WwM ENT CONSTRURION TO DO TH E FOLLOW I W, • TESTFILLCOMPARION • OBSERVE FOUNDATION PREPARATION. • OBSERVE PIPE INSINNUATION. • OBSERVE RISER CONSTRUCTION. • OBSERMYRUTERINSTALIATION, ETC. IMPERVIOUSCORE AND CUTOFF TRENCH 1-YR ELEV =621.05 10-YR ELEV =422.52 100-YR ELEV =623.88 C.B.N.L T ChesaVeahe Bay Nutrient Land Tma4 LLC. July 18,2022 Timmons Group ATTN: Riki van Niekerk,P.E. 609 Preston Avrn , Suitt 200 Chalonesville, VA 3290J "T sNa+Nro[Reso ured Today' RE: CBNLLReynolds Farm Nutrient Facility-NoMe3t Credit Availability Project Reference: Rio Paint, Albemarle County This Imo is BY confirm this availability ofautho tad nutrient cradits sulBeimt to mttt your Tryuirermarts at we Reynolds Farm moment fviliry, which is registered wish the Virginia Oepwbnem of ETwh .1 Quality (DEQ). Reynolds Farm is Iwaled it 3038 Wildway Read (SR 616)m Ap noK Counry.Virginia. Thcse nueient credits arc Wmmted and m gM under theterms ofthe Reynolds Farm Nutrient Reduction Implenrentntion Plan dated Qbber 16, 2019 which wo authonzed by VADEQ On December 1, 2020, The Reynolds Farm project Is located in HILL 02080203 and has been authmlmd to provide nutrient emdies far uw in the Tame: River watershed including HUC, 02080201. 02080302, 02081 0201 02ON205 and)2080201 Theo writs are tmrsfenble Be6. mute, regulated under DEQ's Str men ter Mon emem Program in wcordance with VA Code R 62.IJA.15135. Cam tly Pc Reynolds Farm facility list 123.81 pounds of Umaphoms credits available and will bed able 10 meet the plwsphmus removal u,nir ment for you pw,AAU Ifw emMvidePonefcssistar plea f Ifixemcon ctouraR Sincerely, Chesapeake Bay Nutrient Land Tms4 LLC By IRA Mamger EartMoss. Solution. ED,. SDofCA. Reed Slmn A. Reed Vice President Clr•uprL• Say NNnM L-Bunat LICE. • ON S. Lahm,um MIAMI • Rio mend.VA=1 • P. BOR92. 5110 • xww.Evil .Man FOREBAY CROSS SECTION DETAIL 100 >orytRL' N DAAA'Ps M ,1[E51CA R. DBIRO ' lk. NO. 6,191 � O-DJ� Wd' fO� SS/ONALLNG\? 0210712022 nows! at R. VAN NIEKER •• DD BY 'sDENKO •CHECKED BY AGU C KOTARSHI • E NIA FT CL n 0 z 0 fn Z O g J U W LU of 0 U) L F 1 46883 C7.6 VA DCR SPECIFICATION NO. 9 MAINTENANCE it DCR SPECIFICATION NO. 9 SOIL MEDIA SPECIFICATIONS 24^Nnolxasr mslx CLEPNOUT WITH COME GRATE Material Specifiinumn NWea TOP =NSS RAMPSOILTOUPOF Filter MIBOXWX FlXIINtlLYb19YM: ion TlMmamtlMlY'n9�1H 1m110X P'unpmbn 10W9N6mfiw tl�Iemvdme,b�eabatli�Ig OVERFLOWSTRUCIVRE s% ono w Iwy'ml, MIx SLOE 31 BOTOM OF AveMMRP beewvt La gMMpv RIIU MCIIb CCR2JIIB M4Yd Mam9amra Thn muds alotl dela�Bfletl hytle BIORETEMION TAN Givix taxis- BASINTEY 3' XARDWOOO BARK MULCX BOTTOM ELEV MOTS 48E SIOFILTER MIX Mulch layer Ilan epey NMix1 MNaatl ball mMMLwdllde®IS OJIIpRL LryaYb]krA MpmMeaaF altle IiHB¢0' Aldrgpae IM ana, aB wpi lDiw. maalw Ibyaf b]LaT maatlbmppmi Wp salamrnaa linstatthasaftod. nowifit. BOTTOMmevmorr I NG. B STGNE lmnP Mad or ealtly Min Bank, Hap" ml d. Risk MIN laid. PH JMM iwBPEM6. BGTTOMELEV4,10.S FUTilfnwr mmnellmbdi.m Bdd rJid nn 3r NO.5TSTONE� G llia'limr M tab d> 110 gdhnnh4 M1 Mmtaae.�mH. iq ai l.—.awelm.rm ELEV.48 ies (e.IB.Gmm[%iwiahY i( s� . DETAIL Of OI.1 IYIM•n01aYi, Laya]ta9kCblapdfad Plr a]I�Itl�Mywtltlldi'mu(bpbly lM RDM xiM1etl whid�ibMmlhe uMmba�dorr MEN CONEELOIT 43CXEDULEaO BEAR 14M ' b 11Mffisse..mmMivME 1]abl®asthan aae MbYi� Bid id dean dd hee aYlb (ell. 1]b181d]ai NUnaiva Mwam Myna. PVC UNDERDMIN FABRIC OR C-0VIVAIENT. AWm VUUT /5]nlixt. ilnmutlad TIE IMTOWERFLO'N TOBEe VXGE BIRUCTURE CEMERED ON UNDERO GIN Ux 81M NN aticUbWFNCl4e Leytle palMded Mi mention laratia d (I mianm fmipdrd HOPE M, the IYddmlfaM Call, and aNw UN9entia CFmimuy and, X]Oakatlentlml. wN N6Ydl plwwiw ppellvRiM mPMII aN NOTEB lBlialb®9 B Ital®m FCAC: tlxtlim 481n eydiM1 IMwT$Mtl YB 1.Am DOEILTER MEDIA DEPTH SXPLLBETHE MINIMUM DEPTIAFTERA SETTLING Nuann,G, 'A'aft lmXkn mIT idadrzln m e 1% ar an® rIlnll. tleman Mm4dal ndng n n PERIOD OF THREE DAYB. lYngMpplaOaammMalLT ]O fa31 O MFINiefil Eland dBdllVi b ft 2APPROXIMATE GROUND WATER ELEVATW 5' ION I& 3PROVIDING MORE THAN 2' OF apetlCn$ eernicasuMaked aIIBc Ts"'A, SEPARATION FROM THE BOTTOM OF THE BIORETEMION 3. BEDROCK WAS NOT ENCOUNTERED IN NEARBY BORE IDLES WITHIN I8'OF PYIIiBbY M1B ENaMM pbM miliVbiclxtlBw In NO Berm aQUN ( �d F� a Ban BOTTOM OF SGRETENTION Mae mmllli', minllill 1 and,Pin. NO4. FILTER MEDIA MUST BE SUPPLIED BY A VENDOR mom' a High 9Obtainnnmiiam imnmd3D0he .islM Lliiw MmlLHama Lavxtlei LEVEL 2 BIORETENTION ALONG UNDERDRAIN(2A Prows a Iid tD ran mX bMiaaeapmli®iz .sch NO SCALE Pled Llduldo mzlli, mmr klp�M+mdLdii�Ipn�aihin �s,M. Mosome: PMIn mMB wi a1 lE b M atl® YpeMag on Not InXW 1 Ivi MgaXwllpm. Medium (M) M defined in Table 2.2 of I C (2005) Virginia Nutrient Management Illda s, and CURTIS. Par The hfelficb l meaGioe procedure yNh NMNMM An a XoNK u FS 15mgAg Par I I Saa mg&g P/mahe Mehlieh Illposmedarn e Fiber media should contain sufficient plant available P to support initial plant ablishncm and plant gmNL1, but No seine as a signifcam smmc of P fan Img it. Ching. The media most also be relmively Imse and vovwmpaclW to allow fan adequate Mr-comeened] Mostly to meet the requhM pemsability (RAN) specifieshon. Naxtm it al. I86) estimated generalized bulk densities and Wil-rater CharticUm UCs from .coil texmrt umptions. The expected bulk density of the loamy sand soil composition described above Rld be in the range of 1.6 to 1.7ly-o" 2 mlmnv iN.&OBY I mdpnieaMtlwdtiM Mmlezvil fine idDlergernm mobikl4•fm�4c RmralwP""iea MeW AeFabal L'rpeidee.'lh®mel wiltr.ffire d'the biwd�mmil ¢ffimMhe ImmYcmrc seed ariW m amrePom 103hndn3'. mantas Ihm YJM adl+cyy mdi Iiut T59idtli emdBacM1m eNalldlecaux waery m.ez iM 'IM dlow fi ap va aide Ctimn Lmrtbaoge 1Slicily (CEO) and mWetl rmnWd, wD mia abash caDnadis, 0 hid 10% huff jia "+ tls') while, — in the ANNI jewhart, Mrni6ulids alarse'Itle partele airs amlyeie. be, mndlaNd mthe nrireil f umeas only fdbwmg apmgmmc. asahrllffi b mmmc Rgamc uvula bcfiac PmPlc Iriac ambaia. ]iM Fdbeded'mehvddmvmiu3N M SM wgokwawbyc®vmd®dwalldey-Hlackmd mpdcm314xd Y®ivatimmdhodwd®Im analysis. &H wy®cmMtauvxprewedma day .eilfil bMv off aims m iminde cLvs witicdde (.dMNe) mlmlmda. The 6 Howmg ie Its rttm�eded maopoehim of Nm tl¢a nrdia ivpePornM: o Nidahag rmdeLofnilinbeam cams agAe6 le,i�MTwrmmdie ehepemd Mori tha miwnm � sane dmibdim below. No MlbedtmimF. tl eUmmi mderie4 hmrt hwiensm min amL Shire Nis %Fiala 3Min 9SOmm IN Nina 4.35 non, 100 Nia 236mm BID to TOO NV. 16 138mm 415b85 No. 30 0.6mn islow IMI 03. 3 W I5 N. IN US— obi HtERdvc Iwtidc utt(DID)> CyEan U C«Scilm 10 a4.0 o LvpmlN gm®aryae®eB ae mee®vmavm name mtv mpm®mvmceam don Mtcehmdm mail vaaN: ®u,r (,iN®dalq}mdmya tmai:lwpnie tmlld. Siena tldd8ifiveoftlsepwr6dtdmiam®¢ ollyitlWisM1MCP�oPIXN¢M Sleet The W'wadd MI: dui8a„ TrvmiAa not WaRbY mpanuemom tan ally wEG 1h¢ bpxW wa¢¢ w6va1 iv I¢tic to m C.uwl 10. amolm tl' my me ilmcfim. Ganal the use w. hyial detfid IN A Gamy Mnd- sandy lmi Helonm IS. the II TemuMlTyinegle) mLbe mamxpLeNe inppolumEWinnomtiilimwilh the aaber mymmV.meel the. sated[ nrr®n Sand ufNn End o a1,sub, made nmiida LIMB in she AND mxfia mix should mndd ad wwl- decommaednabadGdervil Lgnicrnaanda. MI:t .pmlvm.lnnmgcmpmt (naiiemnladhalendiIS eEBI fiMNMn feeM o Dewftrpsom saute hu 1N C.MpW 6W1 Ammlm�} bA fines D utb' R�mP PPS axmhlamnR ®Imom mmeav, aM dais, Be,the banks (,ranx or ass ahadd orIN 3%ra b Sskday add aapiic mum m dry is+�1 bed. (N® mF�e ®Ller Fr 100 g® day and) M the Wa1kIlmBlrtmMhodsdhsaimilmmvlvl'xal Mcllvivm. GUISVIOUT WITH DOME GRAVEE OVERFLOW STRUCTURE HARDWOOD RFRKMULCH 64KE51 FILLERRa 6pTTW0t5 WHO NO.8STBTONE ROT TOM ELEV 441 l5 r xo.3rSTORE SEECLEANOUT DECADE $NEU OF 1 STRUCTURE NOTES 1. 3d BI OF ILTER MEDIA DEPTH SHALL BE THE MINIMUM DEPTH AFTER A MEDDLING PIERCE) OF THREE DAYS. 2 APPROXIMATE GROUND WATER ELEVATION IS Sea PROVIDING MORE THAN 2 SEPARATION FROM THE BOTTOM OF TEE SC RETENTION A BEDROCK WAS NOT ENCOUNTERED IN NEARBY BORE HOLES WITHIN 18OF BOTTOM OF ICARETENTION 4. FILTER MEDIA MUST BE SUPPLIED SYA VENDON NO SCALE WASHED GRAVEL MPAAFI1 1;t SIDE HE GRFPBRIC OR SLOPE EpUIVALENT PRETREATMENT- GRAVEL DIAPHRAGM ��ENIi N OF Y/ GRADE u JE590A R. p(KKO � ue. Na. siz91 p 0-12-22 w� CONTRACTOR SH41 NOTIFY THE TIMMONS GROUP PRIOR TO COMMENCEMENT OF CONSTRUCTION OF BMP PRACTICES INCLUDING THE BIORETENTION FILTERS AND THE WET POND. A SPECIFIC PRECONSTRUCTION MEETING BETWEEN THE CONTRACTOR, ENGINEER, INSPECTOR, AND MANUFACTURER IS HIGHLY RECOMMENDED PRIOR TO INSTALLATION OF THESE PRACTICES TO ENSURE THESE PRACTICES ARE NOT ONLY INSTALLED CORRECTLY BUT ALSO DOCUMENTED THROUGHOUT CONSTRUCTION. IT IS THE CONTRACTORS SOLE RESPONSIBILITY TO DOCUMENT THE INSTALIATIgJ OF THESE PRACTICES AND IF THEY PROCEED WITH DOING SO R IS DONE AT THEIR OWN RISK CONTRACTOR SH4LL TAKE NOTES. PICTURES. AND MEASUREMENTS OF ALL STRATA LAYERS WITHIN THE BIORETENTION FACILITIES DURING CONSTRUCTION. IT IS HIGHLY RECOMMENDED TO TAKE PICTURES OF EACH MEASUREMENT OF EACH STRATA LAYER OF EACH FACILITY. WITHOUT DOCUMENTING TO THIS LEVEL OF DETAIL THE CONTRACTOR RUNS THE RISK OF DIGGING THE FACILITIES BACK UP TO PROVE THE CORRECT SECTIONS WERE INSTALLED. TCPFIF/, rs A TOLEEIs) +�WI THE 3M NruTaEav MESH W'NE aEal El1(SHOPBO1 I H"MLIBIONEIFNTION (aLOPE VNtl N rWLf M / ryLOPE VMIES) (M' iWTN 6aBNlN WALL aLWlixTTDx311Ea+y a l'IXIO BOTTOM 6ABN3X BA81('tf IglEB: 1. IxGTaLL GAMY VL41x a{fl)aMM4'£ i1MXLIFµTINExS.iPl1'IFY.aTN.YIi. 2. GRBIUM EASKEETNEIII UST BE TMPE 3. ORBIOx xM1SKEf WIRE MENH MAST BE IYPE.W1 STNNLESi SIEELGRLIff 110R LGa9Y A W CNIBI NB ASKE11OMDE TO W TONEDfd FORaPPIgVaLRIpRTO NBTaMATx)N F. FlLLGAOION BA4NETBwi'DeR3TONE(Da'bl GABION BASKET FOREBAY DETAIL NOT TO SQpIE P3 0210712022 O R. VAN NIEKER •• Do SO 'SDENKO •CHIRENED BY G KOTARSKI I, • f E NIAFT CL n 0 z 0 z p 1 46883 C7.7 L MP. 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(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 W 7 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 IT -mow TE L µ - I �urnRB OF _ 1e9ze �AC � �aE��A _ _____--- _ — �Y1 �� ' ` ?...ems r A ___ __ _ BCALE I'=m' \ �y^y^ / 11 V ' SEDIMENT TRAP p1 _ _ _ _ 2 E r r � 9 5P A �� — III�1�rrArr A _� __ _ TOTAL �_ 1 1 3 O h \ I11 \ / ` \�/` _ = TOTAL STORAGEATION ED:.0 �..w. 1 1. 6E _ / �Y / _ - �- I V�Y�`•T — _ _ ,TOPOF DM ELEVATION MS.0 / .. \ 1 7 _ l I =77' SEDIMENTTRAPN2 1.65ACREDRAINAOEAAEA m __ .• d / __-.l� / TOTAL STORAGE REQUIRED: 2CY _ TOTALSTORAE PROVIDED. 287 8]CY ❑�T� TOP OF DM ELEVATION: M0.0 _ 00 0 As CONTRACTOR STAGING, 0210712022 STORAGEBSTOCKPILEAREA A I � � � / 1 R. VAN NIEKER 1 . I OENKO \Za\ VOly LIMITS OF DISTURBANCE =1892AC _ - ` \ I • C KOARTSKI �na`nwaa,reswuE� V / ________ sum '__ Tenvawa1 v �"81 TOILETS— • 1"= 50' GONG RUCTION/ • TRAILER RAIN GAUGE' pg / 1 IF _ £I / 9 PAWL, STUCCO. STORAGE IF REQUIRED. PBOVE ROUNI WITH IMPERMEABLE MPERMEABL HENVY-IL SEDIMENTBASPTAH LINES NPERMEASLEHEAW-MIL L.I 14.b9 ACRE DRAINAGE AREA LINES STOREDFUELEDICIENT TO ul W WWME +NtO%IGARO�ESEy TOTAL STORAGE REQUIRED: 1,929 CY \ TOTAL STORAGE PROVDED: 4W5CY TOPOFDMI ELEVATION'428 I DUMPSTER V —ILL. k °/ / r _ _ _ - _ _ _ - CONCRETE / Z 1 _ _ _ �- - A4 WASHOUTA� r - WATERTANK G / 09434 , / MORTAR r ° LIMITS OF DISTURBANCE STATION 34Y�"� MIXING w °r \ \ _ 2$24z9� STATIONo UD Fy Q Z 42942 I a Z ° a>;an o � y A� � 0 ILL. € � F. /0 — CONTRACTOR TO THE EXTENT / � V A � �-M CONTRACTOR TO LIMIT AMOUNT OF Y �A� 2� �v_ _ R A 0 K ° f / /° r>< 2 `&`• . _-_ , P PI ]j] 4 421P°u1B / / 6° / ° d —v 9 �• ,g/gv ',.4.�. za'S+°zP42a 422 $ j / 6 NEOESSUCTFOR RESTORE SEWER p 8 1 � COMB v SEED ANDTION_RESTOREGMDE SEED AND STFAW. OF i *a ° / y / / / / °i / °b°° �� .' �'_,'_;_ ✓ _ ;��_ _ BCOUNTY GIS CRITICN-SLOPES MWNA GwEDN`%1`ter e y mho/Y _ SC ALBEIMRLE COUNTY GI RRILAL SLOPES PRESERVED M6fl5 Epv ymR6 F?yu mc' I Eta MTARYAa,oOL 0 69 4 46883 P 0 / �' >—sI s�szszzw A1�fi � sx�rna is 6S xoO j y__ Am IMIT$OFpI$TURBNKE 1892AC 9WLE 1'=50' 06IURBNICE -1&BR ACh lII�I)III / l l 8'W 8'W IsAN I M A LIMITS OFDISTURBANCE =1892 AC � a a„s1q° J $AN 11�Y MR SANb/ 4 \ T � _ T r2Y i / A Y� qI �k ; 5xv t�D bS0,�n MC ALBEMARLECCUNT'GISCRInCALSLOFES-PREERVED S f 1peroswOOL `\ A,a // f Y— �i �< i �e rn ^f�i l o / p - 'go � . ( `, rs'a^zszzrvP _Vill _ a I .° •c5'si'W � TT TWi 1 os* s _ - 11 V \ALBEMARLE COUNTY GIS CRITICAL SLOPES - MANAGED TEMPORARY ��I' OLETS CONS Ory pAILER RAiN GE — SIDE VOLUME SUFFICIENT TO CONTAIN STORED FUELED VOLUME +10%IGASIDIESELI MORTAR MIXING STATION a i's�V� E �oA 3 ee ISIS V�V �nr7 OD.IE 0210712022 R. VAN NIEKER • oE510nEDBY • J BENI • CHE<YED BY KOTARSKI • • IONM • 50' • • W O a ae S wa d<Z 0�W8` d"0 a ` ZZ H $i O J �53 O D3 a a: f� ES $]1 SOB A 46883 I sSHEIlLNO' y PI 8 E L ts. sources or rouutants, vocations, anu 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 on- Land disturbance area Plan. Dispose of clearing debris at stabilized areas acceptable disposal sites. Seed and mulch, or sod within 7 days of land clearm Cover storm drain inlets and use drip pans Paving operations Roads and driveways and absorbentloil 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 compounds. 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. equipment and vehicle washing Vehicle and equipment washing Designated areas and details shown on Provide containment and filtering for all Ian 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.) 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 1-800424-8802. 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 freauency 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 Bacteria TMDL Development for the Rivanna River Mainstem, North Fork Rivanna River, Preddy Creek and Tributaries, Meadow Creek, Mechums River, and Beaver Creek Watersheds Submitted by Virginia Department of Environmental Quality Prepared by THE Louis Berger Group, INC. 2445 M Street, NW Washington, DC 20037 Final Report March 2008 Executive Summary This report presents the development of bacteria TMDLs for the Rivanna River mainstem, North Fork Rivanna River, Preddy Creek and tributaries, Meadow Creek, Mechums River, and Beaver Creek watersheds. These water bodies were listed as impaired on Virginia's 303(d) Total Maximum Daily Load Priority List and Reports (DEQ, 1998, 2002, 2004, 2006) because of violations of the state's water quality standards for E. coli and for fecal coliform bacteria. Description of the Study Area The bacteria impaired Rivanna River watershed is located within the borders of Albemarle, Greene, Nelson, and Orange counties. The city of Charlottesville is also within the watershed's boundaries. All impaired streams are located in the Rivanna River watershed (USGS Cataloging Unit 02080204). The entire Rivanna River bacteria impaired watershed is approximately 321,877 acres. Impairment Description Segments of the Rivanna River mainstem, North Fork Rivanna River, Preddy Creek and tributaries, Meadow Creek, Mechums River, and Beaver Creek were listed as bacteria impaired on Virginia's 2002, 2004, and/or 2006 303(d) Total Maximum Daily Load Priority List and Reports due to violations of the state's water quality standard for fecal coliform bacteria and/or E. coh. The impaired segments are located in the Rivanna River Basin in central Virginia. The watershed is located in the hydrologic unit (HUC) 02080204. The impaired watersheds include the City of Charlottesville and portions of Albemarle, Greene, Orange, and Nelson counties. The impaired segment of the Rivanna River (VAV-H28R-RVNOIA00) extends 5.28 miles along the mainstem from the confluence of the North Fork Rivanna River to Moores Creek. This segment of the Rivanna River was first listed on the 2006 305(b)/303(d) Water Quality Assessment Integrated Report for exceedances of the E. coli standard. During the 2006 assessment period (January 200 through December 2004), 2 Executive Summary E-1 out of 9 samples (22%) collected at listing station 2-RVN037.54 exceeded the E. coli criterion of 235 cfu/100 ml The impaired segment of Beaver Creek (VAV-H23R-BVR02AO4) extends 4.8 miles from its headwaters to Beaver Creek Reservoir. This segment of Beaver Creek was first listed on the 2004 305(b)/303(d) Water Quality Assessment Integrated Report for exceedances of the fecal coliform standard. During the 2004 assessment period (January 1998 through December 2002), 2 out of 16 fecal coliform samples (13%) collected at listing station 2-BVR005.70 exceeded the fecal coliform standard instantaneous of 400 cfu/100 ml. This segment remained on the 303(d) list in the 2006 Water Quality Assessment Report. The impaired segment of Meadow Creek (VAV-H28R-MWCOIA00) extends 4.01 miles from its headwaters to the confluence of the Rivanna River. This segment of Meadow Creek was first listed on the 2002 303(d) Water Quality Assessment Integrated Report for exceedances of the fecal coliform standard. During the 2002 assessment period (January 1996 through December 2000), 4 out of 23 fecal coliform samples (17%) collected at listing station 2-MWC000.60 exceeded the fecal coliform instantaneous standard of 400 cfu/100 ml. The impaired segment of the Mechums River (VAV-H23R-MCMOIA00) extends 10.44 miles from the confluence of the Lickinghole Creek to the Moormans River. This segment of the Mechums River was first listed on the 2006 305(b)/303(d) Water Quality Assessment Integrated Report for exceedances of the E. coli standard. During the 2006 assessment period (January 2000 through December 2004), 2 out of 18 samples (11%) collected at listing station 2-MCM005.12 exceeded the E. coli criterion of 235 cfu/100 MI. The impaired segment of the North Fork Rivanna River (VAV-H27R-RRNOIA00) extends 10.38 miles from the public water intake to the confluence of the Rivanna River. This segment of the North Fork Rivanna River was first listed on the 2006 305(b)/303(d) Water Quality Assessment Integrated Report for exceedances of the E. coli standard. During the 2006 assessment period (January 2000 through December 2004), 3 out of 9 Executive Summary E-2 samples (33%) collected at listing station 2-RRN002.19 exceeded the E. coli criterion of 235 cfu/100 ml. The impaired segment of Preddy Creek and its tributaries (VAV-H27R-PRDOlA00) extends 25.96 miles from its headwaters to the confluence of the Rivanna River. This segment of Preddy Creek was first listed on the 2006 305(b)/303(d) Water Quality Assessment Integrated Report for exceedances of the E. coli standard. During the 2006 assessment period (January 2000 through December 2004), 3 out of the 9 samples (33%) collected at listing station 2-PRD000.21 exceeded the E. coli criterion of 235 cfu/100 ml. During this same period, only 1 out of the 9 samples (11%) collected at listing station 2- PRD004.42 exceeded the E. coli criterion of 235 cf i/100 ml. Applicable Water Quality Standards At the time of the initial listing of Rivanna River mainstem, North Fork Rivanna River, Preddy Creek and tributaries, Meadow Creek, Mechums River, and Beaver Creek segments, the Virginia Bacteria Water Quality Standard was expressed in fecal coliform bacteria; however, the bacteria water quality standard has recently been changed, and is now expressed in E. coli. Virginia's bacteria water quality standard currently states that E. coli bacteria shall not exceed a geometric mean of 126 E. coli counts per 100 mL of water for two or more samples within a calendar month, or an E. coli concentration of 235 counts per 100 mL of water at any time. However, the loading rates for watershed - based modeling are available only in terms of the previous standard, fecal coliform bacteria. Therefore, the TMDL was expressed in E. coli by converting modeled daily fecal coliform concentrations to daily E. coli concentrations using an in -stream translator. This TMDL was required to meet both the geometric mean and instantaneous E. coli water quality standard. Watershed Characterization The land use characterization for the Rivanna River watershed was based on a combination of land cover data from the National Land Use Land cover data set (NLCD) using 2001 reference data and the Virginia Department of Forestry 2005 land use data. Executive Summary E-3 Dominant land uses in the watershed are forest (64%) and agriculture (21%). These account for a combined 85% of the total land area in the watershed The potential sources of fecal coliform include run-off from livestock grazing, manure applications, industrial processes, residential, and domestic pets waste. Some of these sources are driven by dry weather and others are driven by wet weather. The potential sources of fecal coliform in the watershed were identified and characterized. These sources include permitted point sources, failed septic systems and straight pipes, livestock, wildlife, and pets. TMDL Technical Approach The Hydrologic Simulation Program -Fortran (HSPF) model was selected and used as a tool to predict the in -stream water quality conditions of the delineated watershed under varying scenarios of rainfall and fecal coliform loading. HSPF is a hydrologic, watershed -based water quality model. The results from the model were used to develop the TMDL allocations based on the existing fecal coliform load. Basically, this means that HSPF can explicitly account for the specific watershed conditions, the seasonal variations in rainfall and climate conditions, and activities and uses related to fecal coliform loading. The modeling process in HSPF starts with the following steps • delineating the watershed into smaller subwatersheds • entering the physical data that describe each subwatershed and stream segment • entering values for the rates and constants that describe the sources and the activities related to the fecal coliform loading in the watershed The Rivanna River watershed was delineated into 41 smaller subwatersheds to represent the watershed characteristics and to improve the accuracy of the HSPF model. Of these 41 representing the entire Rivanna River watershed, 28 were within the bacteria impaired watershed. This delineation was based on topographic characteristics, and was created using a Digital Elevation Model (DEM), stream reaches obtained from the National Hydrography Dataset (NHD), and stream flow and in -stream water quality data. Executive Summary E-4 Stream flow data were available from the U.S. Geological Survey (USGS). Weather data were obtained from the National Climatic Data Center (NCDC). The data used in the model include meteorological data (hourly precipitation) and surface airways data (including wind speed/direction, ceiling height, dry bulb temperature, dew point temperature, and solar radiation). The period of January 1998 to December 2006 was used for HSPF hydraulic calibration and validation. The hydrologic calibration parameters were adjusted until there was a good agreement between the observed and simulated stream flow, thereby indicating that the model parameterization is representative of the hydrologic characteristics of the study areas. The model results closely matched the observed flows during low flow conditions, base flow recession and storm peaks. Instream water quality data for the calibration was retrieved from DEQ, and was evaluated for potential use in the set-up, calibration, and validation of the water quality model. The existing fecal coliform loading was calculated based on current watershed conditions. Since Virginia has recently changed its bacteria standard from fecal coliform to E. coli the modeled fecal coliform concentrations were changed to E. coli concentrations using a translator. TMDL Calculations The TMDL represents the maximum amount of a pollutant that the stream can receive without exceeding the water quality standard. The load allocation for the selected scenarios was calculated using the following equation: Where, TMDL = 2] WLA +2] LA + MOS WLA = wasteload allocation (point source contributions); LA = load allocation (non -point source allocation); and MOS = margin of safety. Executive Summary E-5 The margin of safety (MOS) is a required component of the TMDL to account for any lack of knowledge concerning the relationship between effluent limitations and water quality. The MOS was implicitly incorporated in this TMDL. Implicitly incorporating the MOS required that allocation scenarios be designed to meet a 30-day geometric mean E. coli standard of 126 cfu/100 mL and the instantaneous E. coli standard of 235 cfu/100 mL with 0% exceedance. Typically, there are several potential allocation strategies that would achieve the TMDL endpoint and water quality standards. A number of load allocation scenarios were developed to determine the final TMDL load allocation scenario. For the hydrologic period of January 2000 to December 2006, fecal coliform loading and instream fecal coliform concentrations were estimated for the various scenarios using the developed HSPF model of the Rivanna River mainstem, North Fork Rivanna River, Preddy Creek and tributaries, Meadow Creek, Mechums River, and Beaver Creek. After using the instream translator, the TMDL allocation plan was developed to meet geometric mean and instantaneous E. coli standards. Based on the load -allocation scenario analyses, the daily TMDL allocation plans that will meet the 30-day E. coli geometric mean water quality standard of 126 cfu/100 mL and the instantaneous E. coli water quality standard of 235 cfu/100 mL are presented in Table E-1. Executive Summary E-6 Table E-1: Allocation Plan Loads for E. coli (% reduction) for the Rivanna River mainstem, North Fork Rivanna River, Preddy Creek and tributaries, Meadow Creek Mechums River, d Beaver Watershed Human Sources Livestock Agricultural Wildlife (failed septic (Direct and urban (Direct systems and Instream non point Instream straight pipes) Loading) sources Loading) Rivanna River 100% 100% 95% 76% VAV-H28R-RVNOIA00 North Fork Rivanna River VAV-H27R-RRNOIA00 100% 100% 95% 92% Preddy Creeks and Tributaries 100% 100% 95% 72% VAV-H27R-PRDOIA00 Meadow Creek VAV-H28R-MWCOIA00 100% 100% 95% 48% Mechums River 100% 100% 95% 76% VAV-H23R-MCMOIA00 Beaver Creek 100% 100% 95% 66% VAV-H23R-BVR02A04 The summaries of the daily bacteria TMDL allocation plan loads for the Rivanna River mainstem, North Fork Rivanna River, Preddy Creek and tributaries, Meadow Creek, Mechums River, and Beaver Creek are presented in Table E-2. Table E-3 summarizes the yearly bacteria TMDL allocation plan loads. Table F-2: Rivanna River mainstem, North Fork Rivanna River, Preddy Creek Meadow Beaver Creek TMDL �and Loads for E. coli (cfu/day) WLA (Point LA MOS Watershed Sources) (Nonpoint (Margin of TMDL sources) safety) Rivanna River 3.72E+10 4.11E+11 Implicit 4.48E+l l VAV-H28R-RVNOIA00 North Fork Rivanna River 9.88E+09 1.62E+l l Implicit 1.72E+l l VAV-H27R-RRNOIA00 Preddy Creeks and Tributaries 6.67E+08 5.91E+10 Implicit 5.97E+10 VAV-H27R-PRDOIA00 Meadow Creek 4.08E+10 2.36E+10 Implicit 6.44E+10 VAV-H28R-MWCOIA00 Mechums River 906E+07 3.50E+10 Implicit 3.51E+10 VAV-H23R-MCMOIA00 Beaver Creek 2.60E+08 1.12E+10 Implicit 1.14E+10 VAV-H23R-BVR02A04 Executive Summary E-7 Table Ina River mainstem,North1 I 1 1 I 1 11 II Be 1 II J Loads WLA (Point LA MOS Watershed Sources) (Nonpoint (Margin of TMDL sources) safety) Rivanna River 4.93E+12 4.11E+13 Implicit 4.60E+13 VAV-H28R-RVNOIA00 North Fork Rivanna River 2.15E+12 1.54E+13 Implicit 1.75E+13 VAV-H27R-RRNOIA00 Preddy Creeks and Tributaries 2.43E+11 5.58E+12 Implicit 5.83E+12 VAV-H27R-PRDOIA00 Meadow Creek 3.89E+12 2.23E+12 Implicit 6.12E+12 VAV-H28R-MWCOlA00 Mechums River 3.31E+10 3.31E+12 Implicit 3.34E+12 VAV-H23R-MCMOIA00 Beaver Creek 3.29E+10 1.07E+12 Implicit 1.10E+12 VAV-H23R-BVR02A04 TMDL Implementation The Commonwealth intends for this TMDL to be implemented through best management practices (BMPs) in the watershed. Implementation will occur in stages. The benefits of staged implementation are: 1) as stream monitoring continues to occur, it allows for water quality improvements to be recorded as they are being achieved; 2) it provides a measure of quality control, given the uncertainties that exist in any model; 3) it provides a mechanism for developing public support; 4) it helps to ensure the most cost effective practices are implemented initially, and 5) it allows for the evaluation of the TMDL's adequacy in achieving the water quality standard. Table E-4 provides load reduction targets for staged implementation achieving a 10% instantaneous standard violation reduction for each TMDL watershed. While section 303(d) of the Clean Water Act and current EPA regulations do not require the development of TMDL implementation plans as part of the TMDL process, they do require reasonable assurance that the load and wasteload allocations can and will be implemented. Additionally, Virginia's 1997 Water Quality Monitoring Information and Restoration Act (the "Act") directs the State Water Control Board to "develop and implement a plan to achieve fully supporting status for impaired waters" (Section 62. 1 - Executive Summary E-8 44.19.7). The Act also establishes that the implementation plan shall include the date of expected achievement of water quality objectives, measurable goals, corrective actions necessary and the associated costs, benefits and environmental impacts of addressing the impairments. EPA outlines the minimum elements of an approvable implementation plan in its 1999 "Guidance for Water Quality -Based Decisions: The TMDL Process." The listed elements include implementation actions/management measures, timelines, legal or regulatory controls, time required to attain water quality standards, monitoring plans, and milestones for attaining water quality standards. Once developed, DEQ intends to incorporate the TMDL implementation plan into the appropriate Water Quality Management Plan (WQMP), in accordance with the Clean Water Act's Section 303(e). In response to a Memorandum of Understanding (MOU) between EPA and DEQ, DEQ also submitted a draft Continuous Planning Process to EPA in which DEQ commits to regularly updating the WQMPs. Thus, the WQMPs will be, among other things, the repository for all TMDLs and TMDL implementation plans developed within a river basin. Executive Summary E-9 Table mainstem, North Fork Rivanna1 1 I tributaries Meadow Cree_�,j- Mechums River and Beaver Creek TMDL_ I zatiom Scenario Instantaneous 1 1 Violation violation of violation of Failed Direct NPS NPS Direct GM Inst. Watershed Septics & Livestock (Agricultural) (Urban) Wildlife standard standard Pipes 126 235 #/100m1 #/100m1 Rivanna River VAV-H28R- 100% 92% 0% 0% 0% 14.7% 10% RVNOIA00 North Fork Rivanna River 100% 100% 50% 58% 0% 21% 10% VAV-H27R- RRNOlA00 Preddy Creeks and Tributaries 100% 100% 50% 48% 0% 36.8% 10% VAV-H27R- PRDOlA00 Meadow Creek VAV-H28R- 100% 100% 0% 23% 0% 27% 10% MWCOIA00 Mechums River VAV-H23R- 100% 100% 55% 0% 0% 33% 10% MCMOlA00 Beaver Creek VAV-H23R- 100% 95% 0% 0% 0% 31.4% 10% BVR02AO4 Executive Summary E-10 Section 8. Qualified personnel The following personnel are responsible for inspections; (Provide the name, telephone number, and qualifications of the qualified personnel conducting inspections.) 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: Cyp /C FO Signature: Date: 7 1.� 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 10M.T 1 DISCHARGE AUTHORIZATION AND SPECIAL CONDITIONS A. Coverage under this general permit. 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. 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. 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. 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. 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. 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. 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. 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. 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 III K. 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. 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). 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. 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. 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. 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 TMDLs, 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. 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 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. 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. 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 11 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; i. 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. 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. 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. 1. Samples and measurements taken for the purpose of monitoring shall be representative of the monitoring activity. 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. 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 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. 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 III 1 1 or 2 in writing as part of the SWPPP. The reports shall contain the information listed in Part 111 1 2. 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: "I certify under penalty of law that I have read and understand this document and that this document and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant 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 III U 2 and 3. 2. Notice. a. Anticipated bypass. If the operator knows in advance of the need for a bypass, the operator shall submit prior notice to the department, if possible at least 10 days before the date of the bypass. b. Unanticipated bypass. The operator shall submit notice of an unanticipated bypass as required in Part III I. 3. Prohibition of bypass. a. Except as provided in Part III U 1, bypass is prohibited, and the board or department may take enforcement action against an operator for bypass unless: (1) Bypass was unavoidable to prevent loss of life, personal injury, or severe property damage. Severe property damage means substantial physical damage to property, damage to the treatment facilities that causes them to become inoperable, or substantial and permanent loss of natural resources that can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused by delays in production; (2) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes, or maintenance during normal periods of equipment downtime. This condition is not satisfied if adequate back-up equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass that occurred during normal periods of equipment downtime or preventive maintenance; and (3) The operator submitted notices as required under Part III U 2. 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. 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 I 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 IB4d.) Facility Identification Date and Time of Inspection Operating Properly (YIN) Description of inspection observations OBSERVATION OF RUNOFF AT 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 IB4d.) 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 SW PP and general permit. Qualified Personnel 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 Stormwater Discharge Outfall Identification Date Clarity Floating Solids Suspended Solids Oil Sheen Otherobvious indicators of stormwater pollution (list and describe) Visible sediment leavingthe site?(Y/N) If yes, describe actions taken to prevent future releases (may need to attach additional information) Describemeasurestakento 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 I 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 I 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 IB4d.) Facility Identification Date and Time of Inspection Operating Properly (YIN) Description of inspection observations OBSERVATION OF RUNOFF AT 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 IB4d.) 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 SW PP and general permit. Qualified Personnel 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 Stormwater Discharge Outfall Identification Date Clarity Floating Solids Suspended Solids Oil Sheen Otherobvious indicators of stormwater pollution (list and describe) Visible sediment leavingthe site?(Y/N) If yes, describe actions taken to prevent future releases (may need to attach additional information) Describemeasurestakento 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 I 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 I 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 IB4d.) Facility Identification Date and Time of Inspection Operating Properly (YIN) Description of inspection observations OBSERVATION OF RUNOFF AT 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 IB4d.) 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 SW PP and general permit. Qualified Personnel 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 Stormwater Discharge Outfall Identification Date Clarity Floating Solids Suspended Solids Oil Sheen Otherobvious indicators of stormwater pollution (list and describe) Visible sediment leavingthe site?(Y/N) If yes, describe actions taken to prevent future releases (may need to attach additional information) Describemeasurestakento 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 I 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)?