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Home My WebLink AboutWPO201800092 VSMP - SWPPP 2020-09-04Al,t COUNTY OF ALBEMARLE ;y Department of Community Development 401 McIntire Road, North Wing Charlottesville, Virginia 22902-45% Tel. (434) 296-5832 • Fax (434) 972-4126 try}. Stormwater Pollution Prevention Plan (SWPPP) For Construction Activities At: Project Name: Glenbrook at Foothill Crossing Phase 5 Name: Name: Address: Prepared by: Prepared for: SWPPP Preparation Date: (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 Stonnwater 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: IIB ❑ IIC ❑ REGISTRATION STATEMENT 2019 Application type. KI 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 VI. (per Part III. K. of the VAR10 Permit). Operator Name: Stanley Martin Companies, LLC Contact person: Jeremy Swink Address: 404 People Place Suite, 303 City, State Zip Code: Charlottesville Virgina 22911 Phone Number: 571-309-5043 Primary Email: swinkjw@stanleymartin.com CC Email: OdonnellGP@stanleymartin.com; chollandsworth@wetlands.com B. Billing Information (leave blank if same as the Operator identified in Section I. A. above). This entity will receive Annual Permit Maintenance and Permit Modification Fee invoices (if applicable). Name: Contact Person: Address: City, State Zip Code: Phone Number: Primary Email: CC Email: C. May we transmit correspondence electronically? You must choose YES and include a valid email in order to pay by credit card and to receive your permit coverage approval letter via email: YES ® NO ❑ Section IL Construction Activity Location Information. Project site information. A. Include a site map showing the location of the existing or proposed land -disturbing activities, the limits of land disturbance, construction entrances and all water bodies receiving stormwater discharges from the site. B. Construction Activity Name: Address: City and/or County and Zip Code: Latitude and Longitude (6-digit, decimal degrees format): C. Construction Activity Entrance Location (description, street address and/or latitude/longitude in decimal degrees): Glenbrook at Foothill Crossing- Phase V Extension of Indigo Road CROZET, VA 22932 38.065295,-78.692062 Indigo Road Rev 01/2020 PAGE 1 ( 6 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 Section III. Offsite Support Activity Location Information. List all offsite support activities to be included under this permit registration. Enter additional areas on a separate page. Offsite areas not included on this registration will need to obtain coverage under a separate VPDES permit. A. Offsite Activity Name: Address: City and/or County and Zip Code: Latitude and Longitude (6-digit, decimal degrees format): B. Offsite Activity Entrance Location (description, street address and/or latitude/longitude in decimal degrees): Section IV. Site Information. N/A N/A A. Property Owner Status: B. Nature of the Construction Activity Description (i.e. commercial, industrial, residential, agricultural, environmental): C. Municipal Separate Storm Sewer System (MS4) name(s) (if the site is discharging to a MS4): FEDERAL ❑ STATE ❑ PUBLIC [D PRIVATE K] Resedential N/A D. Acreage totals for all land -disturbing activities to be included under this permit coverage. Report to the nearest one -hundredth of an acre. Total land area of development (including the entire area to be disturbed as approved in the Stormwater 7.06 Management Plan): Primary estimated area to be disturbed (portions with 6.03 Erosion and Sediment Control Plan approval only): Offsite estimated area to be disturbed (if applicable): N/A E. Estimated Project Dates (MM/DD/YYYY) Start date: 09/10/2020 Completion date: 12/O1/2021 F. Is this construction activity part of a common plan of development or sale? YES ® NO ❑ G. 61h Order Hvdrologic Unit Code (HUC) and Receiving Water Name(s). Attach a separate list if needed. HUC RECEIVING WATERBODY(S) 020802040102 MechumsRiver- BeaverCreek Section V. Other Information. A. A stormwater pollution prevention plan (SWPPP) must be prepared in accordance with the requirements of the General VPDES Permit for Discharges of Stormwater from Construction Activities prior to submitting the Registration Statement. By signing the Registration Statement, the operator is certifying that the SWPPP has been prepared. B. Has an Erosion and Sediment Control Plan been submitted to the VESC Authority for review? YES RE NO ❑ Erosion and Sediment Control Plan Approval Date (for estimated area to be disturbed).: 09/01/2020 C. Has land disturbance has commenced? YES O NO E D. Annual Standards and Specifications. If this project is utilizing approved Annual Standards and Specifications (AS&S), attach the completed AS&S Entity Form. AS&S Entity Name (if different from the Operator identified in Section II. A.): N/A Rev01/2020 PAGE 2 16 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 Section VI. Certification. A person representing the operator as identified in Section I. A. and meeting the requirements of 9VAC25-880-70. Part III. K must physically sign this certification. A typed signature is not acceptable. Please note that operator is defined in 9VAC25-870-10 as follows: "Operator" means the owner or operator of any facility or activity subject to the Act and this chapter. In the context of stormwater associated with a large or small construction activity, operator means any person associated with a construction project that meets either of the following two criteria: (i) the person has direct operational control over construction plans and specifications, including the ability to make modifications to those plans and specifications or (H) the person has day-to-day operational control of those activities at a project that are necessary to ensure compliance with a stormwater pollution prevention plan for the site or other state permit or VSMP authority permit conditions (i.e., they are authorized to direct workers at a site to carry out activities required by the stormwater pollution prevention plan or comply with other permit conditions). In the context of stormwater discharges from Municipal Separate Storm Sewer Systems (MS4s), operator means the operator of the regulated MS4 system. 9VAC25-880-70. Part III. K. Signatory Requirements. Registration Statement. All Registration Statements shall be signed as follows: a. For a corporation: by a responsible corporate officer. For the purpose of this chapter, a responsible corporate officer means: (i) a president secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy -making or decision -making functions for the corporation; or (ii) the manager of one or more manufacturing, production, or operating facilities, provided the manager is authorized to make management decisions that govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long-term compliance with environmental laws and regulations, the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information forstate 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 principal executive officer or ranking elected official. For purposes of this chapter, a principal executive officer of a public agency includes: (i) the chief executive officer of the agency or (ii) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency. Certification: "I certify under penalty of law that I have read and understand this Registration Statement and that this document and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering the information, the information submitted is to the best of my knowledge and belief true, accurate, and complete. I am aware that there are significant penalties for submitting false information including the possibility of fine and imprisonment for knowing violations." Printed Name: Signature (signed in Ink): Date Signed: Jeremylyink- On behalf of Stanley Martin Companies, LLC Zf Zo2d Section VII. 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 Authorityplease send to: Department of Environmental Quality Office of Storrnwater Management Suite 1400 PO Box 1105 Richmond VA 23218 con struction¢o0deg.vi r¢inia.eov If the locality is the VSMP Authorityplease send to: The Local VSMP Authority insert address below) Albemarle County, VA 401 McIntire Road 4th Floor Charlottesville, VA 22902 Rev 01/2020 PAGE 3 16 Q Project Area LJ LOD Stream Waterbody ® Primary Construction Entrance VPDES Site Registration Map Glenbrook at Foothill Crossing WSSI #30245.01 Longitude of Primary CE:-78.692874° Lathude of Primary CE: 3a.065196° Data Samoa: Albemarle County Digital Data Image Scuroo: Virginia Base Mapping Program (VBMP) - Spring, 2018 'Area is based on GIS data, and does not reflect the legal acreages of the site. For exact LOD acreage, see approved plans. Wetland. Studies and Solutions, Inc. a DiIONY1 company A IVORTH o 200 Feet Original Scale: ' = 200' 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 Stonnwater 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.) Issued—10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County 5. THE INITIAL PLAN, SHALL BE INSTALLED NEXT. THE CONTRACTOR SHALL BEGIN BY INSTALLING THE PERIMETER SILT FENCE AND TREE PROTECTION. PERIMETER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. 6. ONCE THE PERIMETER EROSION CONTROL MEASURES HAVE BEEN INSTALLED, AND THE COUNTY INSPECTOR HAS APPROVED THESE MEASURES, THE CONTRACTOR CAN BEGIN LIGHT CLEARING. THE CONTRACTOR SHALL BEGIN BY CLEARING THE AREAS REQUIRED TO ACCESS THE LOCATIONS OF SEDIMENT BASIN AND ITS CONTRIBUTING DIVERSIONS. INSTALLATION OF SEDIMENT BASIN #7 SHALL IMMEDIATEL Y FOLLOW THE SELECTIVE CLEARING, FOLLOWING THE INSTALLATION OF THE BASIN, THE CONTRACTOR SHALL INSTALL ITS DIVERSIONS. ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON THE PHASE I EROSION CONTROL PLAN SHALL ALSO BE CONSTRUCTED AT THIS T[ME. 7. ONCE ALL THE PHASE I EROSION CONTROL ITEMS HAVE BEEN INSTALLED & ARE OPERATIONAL, DRAINAGE IS PROPERLY CONVEYED TO THESE MEASURES, ANO THE ESC INSPECTOR HAS GRANTED APPROVAL, THE CONTRACTOR CAN BEGIN CLEARING THE REMAINDER OF THE SITE. TEMPORARY SEEDING, PERMANENT SEEDING AND DUST CONTROL SHALL BE IMPLEMENTED AS REQUIRED. 8. AFTER CLEARING THE PROPOSED AREAS, THE CONTRACTOR CAN PROCEED TO PHASE 11 OF THE EROSION & SEDIMENT CONTROL PLAN. THE CONTRACTOR SHALL BEGIN ROUGH GRADING THE SITE TO THE CONTOURS SHOWN ON THE PHASE H EROSION & SEDIMENT CONTROL PLAN. AS THE ROUGH GRADING OCCURS THE CONTRACTOR SHALL MAINTAIN, AND MODIFY AS NECESSARY, THE PERIMETER DIVERSIONS FEEDING THE SEDIMENT BASIN. THESE DIVERSIONS SHALL REMAIN FUNCTIONAL AS LONG AS POSSIBLE AND SHALL NOT BE MODIFIED OR REMOVED WITHOUT PRIOR APPROVAL FROM THE ESC INSPECTOR. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. 9. ONCE THE SITE IS ROUGH GRADED, THE CONTRACTOR CAN BEGIN INSTALLATION OF THE UTILITIES, CURB AND GUTTER, AND ROADS. INLET PROTECTION SHALL ALSO BE INSTALLED AS THE STORM SEWER IS CONSTRUCTED. INLET PROTECTION SHALL BE INSPECTED AFTER EACH RAINFALL EVENT AND REPAIRS SHALL BE MADE AS NEEDED. IF THE STONE FILTER BECOMES CLOGGED WITH SEDIMENT SO THAT IT NO LONGER ADEQUATEL Y PERFORMS ITS FUNCTION, THE STONE MUST BE PULLED AWAY AND CLEANED AND/OR REPLACED. 10. INSTALL THE CULVERT FOR THE EMERGENCY ACCESSWAY. 10.1 CONTRACTOR SHALL INSTALL AND MAINTAIN A STREAM FLOW DIVERSION PER DIVERSION CHANNEL. CROSSING VESCH DETAIL 3.25- 1 DURING ENTIRE CULVERT CONSTRUCTION OPERATION. 10.2 SILT FENCE SHALL BE INSTALLED ON BOTH SIDES OF THE PROPOSED STREAM DIVERSION CHANNEL. THE CONTRACTOR SHALL INSTALL AND ADJUST SILT FENCE AS NECESSARY TO PREVENT SOIL FROM ENTERING STREAM. RIPRAP SHALL BE PROVIDED WITHIN THE EXISTING STREAM BED AT THE TRANSITION FROM THE EXISTING STREAMBED TO THE PROPOSED DIVERSION CHANNEL, AND AT THE TRANSITION BACK FROM THE DIVERSION CHANNEL TO THE EXISTING STREAMBED. AN APPROVED FLOW BARRIER (SANDBAGS, PL YWOOD, JERSEY BARRIER, OR EQUIVALENT) WELL. BE INSTALLED BEHIND THE RLPRAP TRANSITION. 10.3 THE DIVERSION CHANNEL CROSSING MUST BE OPERATIONAL BEFORE WORK IS PERFORMED IN THE STREAM {CONSTRUCTION OF DIVERSION SHALL BE PERFORMED "IN THE DRY"). 10.4 ONCE THE STREAM IS DIVERTED, THE CONTRACTOR SHALL INSTALL THE PROPOSED CULVERT. 10.5 UPON COMPLETION OF THE CULVERT INSTALLATION, AND WITH INSPECTOR APPROVAL, THE CONTRACTOR SHALL REMOVE THE STREAM DIVERSION AND ALLOW STREAM FLOW TO RESUME THROUGH THE CULVERT. 11. THE CONTRACTOR SHALL INSTALL ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON THE PHASE B EROSION CONTROL PLAN. TEMPORARY SEEDING, PERMANENT SEEDING AND DUST CONTROL SHALL Be IMPLEMENTED AS REQUIRED. 12. PERMANENT OR TEMPORARY SOIL. STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. PERMANENT STABBIZATION SHALL Be APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 13. ONCE PHASE B OF CONSTRUCTION IS COMPLETE, THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR CAN THEN CONVERT SEDIMENT BASIN 41 INTO THE PROPOSED SWM FACILITY. AT THE TIME OF SEDIMENT BASIN # 1 's CONVERSION THE INLETS, AND ANY POTENTIAL AS BUILT YARD DRAINS, SHALL BE MADE OPERATIONAL. AFTER THE BASINS CONVERSION THE CONTRACTOR CAN REMOVE THE REMAINING EROSION & SEDIMENT CONTROL MEASURES. NO ITEM SHALL BE REMOVED, THROUGHOUT ALL PHASES OF CONSTRUCTION, UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE INSPECTOR GIVES PERMISSION. 14. THE CONTRACTOR SHALL MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGE UA EROSION AND SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 15. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. 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 l� GENERAL NOTES OWNER: DAILY SOUTH INVESTMENTS LLC PO BOX 1467 CHARLOTTESVILLE, VA 22902 DEVELOPER: RIVERBEND DEVELOPMENT, INC. 455 SECOND STREET SE SUITE 400 CHARLOTTESVILLE, VA 22902 ATTN: ALAN TAYLOR ENGINEER: COLLINS ENGINEERING 200 GARRETT ST, SUITE K CHARLOTTESVILLE, VA 22902 (434)293-3719 TAX MAP NO.: 05600-00-00-057B3 (OB.5122, PG.723) TOTAL AREA: 5.84 AC. ZONING: R-6 RESIDENTIAL, STANDARD LEVEL — CLUSTER DEVELOPMENT DENSITY.• ALLOWABLE DENSITY FOR STANDARD LEVEL CLUSTER DEVELOPMENT-6 DU/AC 5.84 ACRES x 6 UNITS / ACRE = 35 UNITS PROPOSED DENSITY: PROPOSED LOTS = 31 31 UNITS/ 5.84 AC. = 5.3 DU/AC. PROPOSED USE: 31 SINGLE FAMILY ATTACHED UNITS (TYPICAL NUMBER OF BEDROOMS FOR EACH UNIT SHALL BE (2) OR (3) BEDROOMS) OPEN SPACE: TOTAL OPEN SPACE PROPOSED = 1.622 AC (27.87.) TOTAL OPEN SPACE REQUIRED (251—) = 1.46 ACRES OPEN SPACE TO BE OWNED AND MAINTAINED BY THE HOMEOWNERS ASSOCIATION. ALL OPEN SPACE SHALL BE RESERVED IN A DEED FOR THE COMMON USE OF LOT OWNERS IN THE SUBDIVISION. OPEN SPACE A = 0.067 ACRES OPEN SPACE B = 0.092 ACRES OPEN SPACE C = 1.383 ACRES OPEN SPACE D = 0.055 ACRES OPEN SPACE E = 0.025 ACRES RECREATION AREA: TOTAL AREA PROVIDED = 37,950 SF (6,200 SF REQUIRED) 4,450 SF PROVIDED FOR ACTIVE RECREATIONAL TOT LOT. (MIN. TOT LOT SIZE = 2,000 SF) 33,500 SF PROVIDED FOR THE PRIMITIVE WALKING TRAIL AND PASSIVE RECREATIONAL AREA. SEE SHEET 3 FOR DETAILS ON THE ACTIVE AND PASSIVE RECREATIONAL AREAS. PRESERVED/MANAGED SLOPES: NO PRESERVED SLOPES ARE SHOWN WITHIN THE LIMITS OF THE PROPERTY. SMALL AREAS OF MANAGED SLOPES ARE LOCATED ON THE PROPERTY AND SHOWN ON THE EXISTING CONDITIONS PLAN SHEET. BUILDING HEIGHTS: MAXIMUM BUILDING HEIGHTS SHALL NOT EXCEED 35 FEET NOTE: VILLA UNITS WILL BE 1-1/2 STORIES AND A MAXIMUM OF 25' IN HEIGHT SETBACKS: FRONT: MIN. 5' (18' MINIMUM FROM R/W OR EDGE OF SIDEWALK TO GARAGE) MAXIMUM — 25' MAXIMUM SETBACK SIDE MINIMUM — 5 FEET, UNLESS THE BUILDING SHARES A COMMON WALL MAXIMUM — NONE BUILDING SEPARATION: 10 FEET, UNLESS THE BUILDING SHARES A COMMON WALL REAR: 20' MINIMUM AND NO MAXIMUM SUBDIVISION STREETS: CURB & GUTTER WATERSHED: LICKINGHOLE CREEK WATER SUPPLY WATERSHED AGRICULTURAL/ FORESTAL DISTRICT NONE TOPO & SURVEY.- TOPOGRAPHY PROVIDED BY A COMBINATION OF ROUDABUSH, GALE AND ASSOCIATES AND LOUISA AERIAL SURVEYS INC., JANUARY 2007. THE BOUNDARY LINE INFORMAT7ON IS PROVIDED BY ROUDABUSH, GALE AND ASSOCIATES. INFORMATION FIELD VERIFIED BY COLLINS ENGINEERING IN DECEMBER OF 2018. DATUM: NAD 83 EXISTING VEGETATION: LARGELY WOODED WITH SMALL OPEN SPACES & LIGHT UNDERBRUSH LIGHTING: NO LIGHTING IS PROPOSED PARKING: 2 OFF—STREET PARKING SPACES SHALL BE PROVIDED FOR EACH UNIT. ON —STREET PARKING SHALL BE PROVIDED WHERE INDICATED ON SITE PLAN. ONE GUEST PARKING SPACE IS REQUIRED FOR EVERY 4 UNITS. TOTAL UNITS = 31 UNITS/4 = 8 GUEST PARKING SPACES REQUIRED TOTAL ON STREET GUEST PARKING SPACES PROVIDED = 8 SPACES PHASING: THE PROJECT WILL BE COMPLETED IN ONE PHASE. THE EROSION & SEDIMENT CONTROL PLAN IS SEPARATED INTO TWO PHASES. BURIAL SITES. NO CEMETERIES WERE FOUND DURING A FIELD INVESTIGATION OF THE SITE. STREAM BUFFERS: THE STREAM BUFFERS SHOWN HEREON SHALL BE MANAGED IN ACCORDANCE WITH THE ALBEMARLE COUNTY WATER PROTECTION ORDINANCE RETAINING WALLS: A RETAINING WALL IS PROPOSED WITH THIS PLAN, SEE SHEET 5. IMPERVIOUS AREAS: Proposed Roadway 34,600 sf Proposed Sidewalk 9,425 sf Proposed Driveways 16,225 sf Proposed Residences 58,550 sf Proposed Emergency Access 9550 NOTES: ""' " 1) THIS PROPERTY DOES NOT LIE WITHIN AN AGRICULTURAL AND/OR FORESTAL DISTRICT. 2) ONLY (1) DWELLING PER LOT SHALL BE PERMITTED. 3) THIS PROJECT IS NOT LOCATED WITHIN FLOODPLAIN LIMITS, BASED ON FEMA MAP NUMBERS 51003CO229D ADOPTED FEBRUARY 4, 2005. 4) STREET TREES SHALL BE PROVIDED ALONG ALL THE PUBLIC STREETS 40' O.C. IN ACCORDANCE WITH VDOT AND ALBEMARLE COUNTY STANDARDS. 5) ITE TRIP GENERATION: TRAFFIC IMPACT NUMBERS ARE BASED ON THE ITE TRIP GENERATION MANUAL, 10TH ED1770N. CODE 220 WAS USED FOR THE DEVELOPMENT PROPOSED 31 DWELLING UNITS ADT RATE — 7.32 VPD PER DU = 227 ADT (113.5 EN7ER/113.5 EXIT) AM PEAK RATE — 0.46 VPH PER DU = 14 VPH (3 ENTER/11 EXIT) PM PEAK RATE — 0.56 VPH PER DU = 17 VPH (11 ENTER/6 EXIT) 6) ALL TRASH SHALL BE COLLETED BY A DRIVING DUMPSTER SERVICE — EACH LOT SHALL HAVE AN INDIVIDUAL TRASH CONTAINER. 7) THIS PROPERTY IS NOT LOCATED WITHIN A DAM INUNDATION ZONE. 8) RETAINING WALLS GREATER THAN 3' IN HEIGHT REQUIRE A SEPARATE BUILDING PERMIT WALLS EXCEEDING 4' IN HEIGHT REQUIRE A STAMPED ENGINEERED DESIGN. WALLS CROSSING LOT LINES REQUIRE AN EASEMENT 9) ALL WATER LINES, SEWER LINES, AND FIRE LINES FROM THE MAIN TO THE STRUCTURE MUST HAVE A VISUAL INSPECTION PERFORMED BY THE BUILDING DEPARTMENT FOOTHILL CROSSING PHASE V - VSMP PLAN WP02018-00092 WHITEHALL DISTRICT ALBEMARLE COUNTY, VIRGINIA � / � /// III II II III ICI III \# \ LOTz3 i LOT la LOTa2 \ 4111 \ LOT io • \ \ �� LOT a4 ` \ \ 411 �� \ LOTS LOT I LOT7 LOT LOTS 1 LOT LOT LOT z LOT INDIGO ROAD VAR. WDITH PUBLIC R/W OVERALL ACREAGES TOTAL ACRES OF LOTS: 2.99 AC (51.27) TOTAL ACRES OF OPEN SPACE. • 1.62 AC (27.8%) TOTAL ACRES OF ROW 1.23 AC (21.07.) LOTiS LOT 16 LOT EA 0 LOT 18 \ ` LOT 29 \\ LOT26 LOT 25 LOT 27 LOTz4 � LOTa8 \ LOT zo - LOT 23 V �y. LOT n-- �- �� v OT 29 \ I L0T22 � I LOT3o LOT 3i \\ - \ CLAUDIUS CROZET PARK SHEET LAYOUT SCALE: 1" = 60' GENERAL BUILDING DEPARTMENT NOTES: 1. WHERE THE FLOOD LEVEL RIMS OF PLUMBING FIXTURES ARE BELOW THE ELEVATION OF THE MANHOLE COVER OF THE NEXT UPSTREAM MANHOLE IN THE PUBLIC SEWER, THE FIXTURES SHALL BE PROTECTED BY A BACKWATER VALVE INSTALLED IN THE BUILDING DRAIN, BRANCH OF THE BUILDING DRAIN OR HORIZONTAL BRANCH SERVING SUCH FIXTURES. PLUMBING FIXTURES HAVING FLOOD LEVEL RIMS ABOVE THE ELEVATION OF THE MANHOLE COVER OF THE NEXT UPSTREAM MANHOLE IN THE PUBLIC SEWER SHALL NOT DISCHARGE THROUGH A BACKWATER VALVE. 2. DUE TO REQUIRED DISTANCES FROM LOT LINES AND STRUCTURES AS REQUIRED BY THE NFPA, UNDERGROUND PROPANE TANKS MAY BE PROHIBITED. THE BUILDER/DEVELOPER SHALL PLAN ACCORDINGLY. SCOTT/R. (�LLINS� U LIc. Noa . 035791, 06/02/20� 11 Ouer, ��Gt0 SITE [I�Ojlt\-GHOLE �'.- - ©ASIN al ME 0 VICINITY MAP SCALE: 1" = 2000' a EXISTING CULVERT EARTH DITCH O CULVERT DRIVEWAY CULVERT F0 DROP INLET & STRUCTURE NO. BENCH MARK CURB CLEARING LIMITS 0 CURB & GUTTER - - - PROPOSED PAVEMENT T EC-3A DITCH 100 EXISTING CONTOUR DEPTH OF EC-3A DITCH PROPOSED CONTOUR 200 240.55 VDOT STANDARD STOP SIGN EC-2 DITCH PROPOSED SPOT ELEVATION DEPTH OF EC-2 DITCH VSMP PLAN SHEET LIST Sheet Number Sheet Title 1 COVER SHEET 2 EXISTING CONDITIONS 3 EROSION & SEDIMENT CONTROL NOTES, NARRATIVE & DETAILS 4 PHASE I EROSION & SEDIMENT CONTROL PLAN 5 PHASE II EROSION & SEDIMENT CONTROL PLAN 5A MITIGATION PLAN 6 STORMWATER MANAGEMENT PLAN & DETAILS 7 STORMWATER MANAGEMENT DETAILS 8 CULVERT PLAN 9 TOTAL SHEETS APPROVED by the Albemarle County Community Development Department Date 19/1/2020 File WP0201800092 APPROVALS DATE DEPARTMENT OF COMMUNITY DEVELOPMENT PLANNER/ZONING ENGINEER INSPECTIONS ARB DEPARTMENT OF FIRE RESCUE ALBEMARLE COUNTY SERVICE AUTHORITY VIRGINIADEPARMENT OF TRANSPORTATION HEALTH DEPARTMENT COLLINS ENGINEERING IS NOT RESPONSIBLE OR LIABLE FOR ANY CONSTRUCTION OR DAMAGES TO THIS PROJECT PRIOR TO ALL FINAL PLAN APPROVALS. rn rn o N Uri o r+ N � \ M (] J Q Q Q O J F — Z I, Q Z ¢ LU z LU z 0 m o 0 o U Z) U U U //\ cn wU1 rz a Ul w V� ¢ H o > > > _- ` Ul z W W W Z / w �U)�z a a a (n LLJ zzd g IcLa 0 a 0 d 0 > > Uj U1 Ln Ln Ce W 0 0 LU QM 1 C\ M N N M o 0 W N O O N W N Z W J J_ > U) 0 W 0 z U W� LU TIM, H z LULU U) LLU LL Of 0 O O N AM Q G 1 t.tJ w W a = U) ♦0- W z > 14 L/) U oC J O G � w � x a � JOB NO. 112066 SCALE kS SHOWN SHEET NO. 1 ✓r!° LEGEND: I TMP: 05600 00-00-057D0 �i�` � �i�- r /l / " l V / / l - i, � - T 0i�j MANAGED STEEP SLOPES J� OWNER: GLENBROgK, LLC ACREAGE: 9.72 AC / \ ZONING: R-6 RESIDENTIA EXISTING TREELINE --� / SCOTT R. LLINS: �, I V� D.B.IPG.: 5039/66 sl — _ —� —_ I \ v V USE: RESIDENTIAL/ — — — — — — — — — — 00� S Lic. No. 035791 1 TREAM BUFFER s � a.�a� �:1..y \ s /� \ -�_i _ _ -- �, 06/02/20 k, m m ■ ■ ■ m ■ m ■ m FUTURE PRIMITIVE CLASS B TYPE 1 TRAILWAY °� s �1 zz ONAL �'� �s / �- H I " \ - \- / j �- _ /r/ l r l /I �•% y I r zz FOOTHILL CROSSING GREENWAY AREA EX. ACSA SANITARY SEWER ° , • f IN20'ACSASANITARY ESMr - / / GLENBROOK GREENWAY AREA - = D.B. 1997, PG. 235 \\ XISTING LOT LINE V > v 100' STREAM BUFFER �� - - FII OOTHILL CROSSI�1 _ r l CURRENTLY UNDER V v r r / % r-1 l --llll E \, A / - - - 7_ - - - - EX MH PSV OS 17 �CONSTRUCTION PER, TMP: 056A2-04-00-OOOAOAPPROVED PLAN L OWNER: PARKSIDE VILLAGE HOMEOWNERS ti v / SU6201400187------�- - - - - - ASSOCIATION, INC V / ACREAGE: 5.69 AC 1� ■ - -\ - - - -� ZONING: R-6 RESIDENTIAL , .,. sib 1 1■ i 11 �y .',� A /./h If /. l w w h > l ;.. - �� V EX MH PSV OS-16 _ / / �� l ,,I,� o l l F F Q O D.B./PG.: 3205/626 - \ -� / a a - 1 � A i J � o � USE: OPEN SPACE FOR THE PARKSIDE ��r l C In IN ■ - VILLAGE NEIGHBORHOOD 11 • ' 1 �l 11 /1 i Z o z z Lu a N890 51"W I08.79' �;. \ 1 \ \\` \ \ o NO2° 44'-fi3"E 49-99U ' I-� \ \ �, / /'� ` U m O O U rii --T— i v� l "r ill l r cn U U co //' w M a a a 0600 - V p lr r !./l / l E L s 4-00-0 I - • " ° - . -� IS I PARISI RONt}LD & ALBF.RTA \ _ _ A - �• / - -ZONING--6 ESIDENTIAL I A� v.' lIf I .�. .Z. w w a Z ,I y o.lszoAREs \ F. \ r .. r�.6.4aT1-Pei�sa6 .\ I \ \ \ / � w can w 'n ---�05 .B6A. zI6#��G-sIffit3OO_J _ _- -__JamI°I - I I �! i _ \ A s� ' du'v \` \�\ \ �\ ► y \ ��\C\%�� \ _V� /I l Lu ,�-•�/ g g-+ Luo.w. > MURRAY, DEMISE -_ n n w/0.1760 ACRES r /%l/, LUZONINGR-6 RESIDENTIAL l/ d r / 056A2- �- JUST-00600 93cAz9aoo-o1600 JUSTIN CHARLE, BECK, DEAN W;cxoTT � OR swRAH wNNe_\ SI \ \ \ \ \ \\ \ \ \ , \ \ \ \ \�r\. '-�\ V \\\'' \\ \. "- - \\ \- \'A. ,l' C "` •>° .'h ,/,-i �- ,� /ii r' II I l I I I ^' ` 'fj 1/.' / (� /l /// •r1r'rr\ll ,�/,�l 11 YSANDRA,C HAUSMAN 0.2150 ACRES ORES II ZONING: R=6 RESIDENT� ZONING: R-6 RESIDENTIAL D.B.364082 P D.a-Ys Pc. 174 l 11 l 1� -- _ 700 C6kWMY PARTNERS RLLLP �I �I ROTHM056A2-04-DO-0JNJAMINA _ ��m _ - A\ \ \\ ✓/-�� Iq �'�� = / / _ I OR C /-/ A KIRBY, PHILIP � i, � i Z 1R-6 RES E24TIAI� _ % t ZONING' I I \ % A D.B. 5107 PG. 85 RESIDENTIAL �, �I 0. 80 ACRES �� — 0.2399 ACRES - I � � \ / • / �I \ \\ 0. 990 ACRES 2708 PG. 619 �� I _ ZONING: R 6 RH5 EN'CIAGII -- _ B. 2229 PG. 297 EXISTING CREEK V EN-TURA OBERT E JR I 6 056A20 00 -----_yI I � \ H: TIAL.- o56Az oa o0 oosoo I � �to�5» I r � OR KARENN� �I � yI I II�iI I FRAN`KLIN-A-LANG HANYON C 0 2270 ACRES OR S 0.1740 ACRES R 6RESIDENTIAL -6 RESIDENAL I \ - _-_4 `.ZONING:R TD.B. 2838 PG641 iRE4CHAB. 295 PG. 115 OROANA OA0-04-0-01300 2056A2-04-00-0090 ZONE_ SIDEN.. TIALKASEN, SCOTT D OR SA2AH F ADHOUSE, STEPHEN - -- n^y - ` ��'/yr// �/,�,(/I� � - ��r.•l - _ _ - - -( ,-- - „- 01980 ACRES I ORURSULA j �--NSE�RESIDEN•I'�AL -- EXISTING - - - ` ` �\ V '� - ` _ TMP: - - 05600-00-00-057B1 "•1 D. 4 I I PG. - \ - - D.B. 3s5I P os6 — - - _ MANAGED \ \ OWNER: GLENBROOK, LLC ------ ti I ZONING: R- RESIDENTIAL I I ii I b56A2-0 - 300 SLOPES - A \ ZONING: R-6 RESIDENTIAL I � 0.1760 ACRE I � \ ACREAGE: %32 AC JONES, BENT IN MARTIN _ _ \ A. A \ - - -_� OR SAP AR _ = A \ \ \ A ZONING: RESIDENTIAL_ - D.B./PG.: 5039/75 0562 04 rar2oe— D400-01000 CE USE: SINGLE FAMILY RSI,-E TGROTHEMIL �-own-toNpTHaN ZONING: sIDHNTtnI 1 tIA tL OA AND.B. 4369 PG.1 9 0.2170 REACRES -�USE:SID TIAL BENCHMARK: ZONING 6 RESIDENTIAL ZONING- R 6 RESIDENTIAL EX MH PARKSIDEVIL-1-14 �D.B. 2533 PG.77N.. -2\INV IN�33T u I 06J BEASLEY, ALBALl 056A2 04-00-IIPI 0 ORPMELA B AXSTRICKLAND, LAMES KEL0.22 lRRI I 0ACRES OR ZONING: RESIDENTIAL �30ACDBPG. _USE: ESIDENTIALENTIAL DB��N1INGR6 RE51 �!r �. ' � ' � - TMP: 05600-00-00-057B3 100' STREAM BUFFER V _ f - r 1 �, < PICKRAC00-00100 �• JUSTINE OWNER: DAILY SOUTHINVESTMENTSLLC I os6wz-oa - ` & rcATHERrNE v� _ - A V� ACREAGE: 5.84 AC ZONING E ING R-6 RESIDENTIAL - - -- - - RESIDENTIAL o271oACREs I ZONING: R 6 RESI \ \ \ ,40�°� Ro USE: sIDENTIAL D.B./PG.: 5122/723250 \ham V A� , b 4, _ U \ t EASEMENT ARY SEWER, TMP: 056A2-01-00 07200 \ B�•/CR/N / - - lys �, D.B. 1997, PG. 235 \. 0 V OWNER: CLAUDIUS CROZET PARK, INC I \ ACREAGE: 10.73 AC � � A -� � \ \ EXISTING LOT LINE tip` ZONING; RURAL�o, D.B./PG.: 1536/408 " _ - _� \__ - -- -- 11 EXISTING 12" -DI WATERLINE � `\ � , _ \\ EXISTING TREELINE - / 20' WATERLINE EASEMENT RESERVED FOR FUTURE EXTENSION D.B. 1974, PG. 456 AREA RESERVED FOR \\ N • TMP: 05600-00-00-057132 / PUBLIC DEDICATION UPON ��- 1 ` V OWNER: GLENBROOK, LLC DEMAND BY THE COUNTY 1 ro 1 ® \ ACREAGE: 8.50;AC D.B. 1974, PG.456 �N� A A ZONING: R-6 RESIDENTIAL/ 0 q2 7j w S.SC 11 o D.B./PG.: 5039/75 f m \ ` USE: SINGLE FAMILY RESIDENTIAL OS. \ \ EXISTING CREEK NOTES: 1. THIS PROJECT IS NOT LOCATED WITHIN FLOODPLAIN LIMITS, BASED ON FEMA MAP NUMBER 51003CO229D ADOPTED FEBRUARY 4, 2005. 1\ J 2. TOPOGRAPHY IS PROVIDED BY A COMBINATION OF ROUDABUSH, TMP: 056A2-01-00-072A0 \ GALE & ASSOCIATES AND LOUISA AERIAL SURVEYS IN JANUARY OF OWNER: CLAUDIUS CROZET PARK, INC \ 2007. THE BOUNDARY LINE INFORMATION IS PROVIDED BY ZONING: RURAL N52° 02'18"W 30.6. INa9° 19' 591E 22.09' ACREAGE: 11.67 AC ROUDABUSH, GALE & ASSOCIATES. TOPOGRAPHY HAS BEEN FIELD 1 VERIFIED IN DECEMBER OF 2018. D.B-/PG.: 1536/408 1 _ USE: PUBLIC PARK 3. NO PRESERVED STEEP SLOPES ARE LOCATED ON THE PROPERTY. \ THE MANAGED STEEP SLOPES ARE LABELED. GRAPHIC SCALE P: 00-00-00-05500 4. A 100' WPO STREAM BUFFER IS SHOWN. � \ t ' . -.\ 1 A - - . \ \ 1 -f -- so a 25 Rs0 100 - 200 r � � i � . - OWNER: CO TY OF ALBEMAR�E C/O ACREAGE: 2.19 NC DMINISTRAT QN RM 149 FIN { AC \ 1 N - ( IN FEET ) ZONING R-4 RESIDEN 1 inch = 50 ft. D.B./PG.: 2397/431 0 0 Q N m N O rN ti M 0 0 6k z ICY) M M O N M 1 W N O N W \N z w J J U) TIM I- Zw J~ Of J< u O O N u H w a En JOB NO. 112066 SCALE ill =50' SHEET NO. 2 r�- EROSION CONTROL NOTES EROSION CONTROL HANDBOOK SSPECIFICA7701V NUMBERV TROD ;7c 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE SA -(� - SAFETY FENCE 3.01 WEEK PRIOR TO THE FINAL INSPECTION. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT 000NS7RUCTION ENTRANCE 3.02 CONTROL HANDBOOK AND 16RGINIA REGULA7IONS OR 625-02-00 EROSION AND SEDIMENT CONTROL CR CR CONSTRUCTION ROAD 3.03 J. REGULATIONS. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STABILIZATION STEP IN CLEARING. 4• A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SF�� SILT FENCE 3.05 SITE AT ALL TIMES. IP STORM RAIN INLET PR07EC77ON 3.07 SO MDL 0 ®( 5. PRIOR TO COMMENCING LAND DISTURBING ACTIW71ES IN AREAS OTHER THAN INDICATED ON THESE PLANS INC UDING BUT NOT LIMITED TO OFF -SITE BORROW OR WAS AREAS THE CONTRACTOR B 7E C DD 11 � TEMPORARY DIVERSION DIKE SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR RENEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY: 3.09 6. THE CONTRAC70R IS RESPONSIBLE FOR INSTALLATION OF ANY ADD177ONAL EROSION CONTROL TEMPORARY RIGHT-OF-WAY MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN RW 11 DIVERSION 3. APPROVING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES SB SEDIMENT BASIN J. O DURACHING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UN7L FINAL STABILIZATION IS D. B. 9. DURING EWA IN OPERA WAT R WILL E PUMPED IN70 AN APPROVED FILTERING DEVICE. D TIER G R E B D VFD £ THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER OP OUTLET PROTECTION 3.18 5*4 EACH RUNOFF -PRODUCING RAINFALL EVENT ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY RR � RIPRAP 3.19 8 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 11. ALL WASTE MATERIALS SHALL BE TAKEN 70 AN APPROVED WASTE AREA. EARTH FILL SHALL BE 8 TS TEMPORARY SEEDING 3.31 12. INERT MATERIALS ONLY' FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER DEBRIS BORROW OR WASTE AREAS ARE 70 BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. PS PS PERMANENT SEEDING 3.32 S --a 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SEC71ON 13-301 OF THE CODE O �� TREE PROTECTION 3.38 14. OF ALBEMARLE. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7: 00 AM 70 9: 00 PM. 15. BORROW1 FILL OR WASTE AC77WTY SHALL BE CONDUCTED IN A SAFE MANNER THAT MAINTAINS DC-0- DC DUST CONTROL 3.39 LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE OF SLIDES, SINKING, OR COLLAPSE. 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT SIORMWATER MANAGEMENT FACIL177E'S WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR EROSION & SEDIMENT CONTROL SHAPPE�T 17 TEMPORARYTISTABRIZAHTION BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT MEASURES: 75 LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER 70 FEBRUARY 70 CONSIST A 50/50 MIX OF ANNUAL RYGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET: STRAW MULCH IS TO BE APPLIED STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE IN AT 80LBS/100SF. AL TERNA TIV£S ARE SUBJECT 70 APPROVAL BY THE EROSION CONTROL ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. INSPECTOR. STRUCTURAL PRACTICES USED IN THIS SECTION CONSIST OF THE FOLLOWING: 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICUL77JRAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBSII000SF, INCORPORATED INTO THE 3.01 SAFETY FENCE 70P 4-6 INCHES OF SOIL. FER77LIZER SHALL BE APPLIED AT 10ODLBS/ACRE AND CONSIST OF A A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 180LBS/ACRE AND CONSIST 1O PROHIBIT THE UNDESIRABLE USE DE AN EROSION CONTROL MEASURE BY THE PUBLIC. OF 95X KENTUCKY 31 OR TALL FESCUE AND 0-5X PERENNIAL RYGRASS OR KENTUCKY BLUEGRASS. APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE STRAW MULCH IS TO BE APPLIED AT 80LBS/700SF. ALTERNA77VES ARE SUBJECT TO APPROVAL BY CONSIDERED UNSAFE BY VIRTUE OF P07EN71AL ACCESS BY THE PUBLIC THE EROSION CONTROL INSPECTOR. 3.02 CCWSWUCTIQN ENTRANCE.' 19. MAINTENANCE.' ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY A STABILIZED CONSTRUCTION ENTRANCE LOCATED AT POINTS OF VEHICULAR INGRESS AND DAMAGE OR CLOGGING 70 STRUCTURAL MEASURES IS 70 BE REPAIRED IMMEDIATELY. SILT TRAPS EGRESS ON A CONSTRUCTION 97E. 70 REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO ARE TO BE CLEANED WHEN 5OX OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT ALL PAVED PUBLIC ROADS BY U07-OR VEHICLES OR RUNOFF C0NS7RUC710N ENTRANCES SHALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. DE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE AMOUNT SEDIMENT TRANSPORTED SILT FENCE AND DIVERSION DYKES WHICH ARE COLLECTING SEDIMENT 70 HALF THEIR HEIGHT MUST ONTO PUBLIC ROADWAYS BE CLEANED AND REPAIRED IMMEDIATELY. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 303 CONSTRUCTION ROAD SFABILIZATION: DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT 70 TI-E TEMPORARY STABILIZATION DE ACCESS ROADS, SUBDIVISION ROADS, PARKING AREAS, APPROVAL BY THE EROSION CONTROL INSPECTOR. AND 0711ER SITE VEHICLE TRANSPORTA770N ROUTES WI717 STOVE IMMEDIATELY AFTER 21. THE E&S INSPECTOR HAS THE AUTHORITY TO ADD OR DELETE E&S CONTROLS AS NECESSARY IN GRADING. 70 REDUCE EROSION OF TEMPORARY ROADBEDS BY CONS7RUC770N TRAFFIC THE FIELD AS SI7F CONDITIONS CHANGE. IN ADDITION, NO SEDIMENT BASIN OR TRAP CAN BE DURING WET WEA TITER AND TO REDUCE EROSION AND SUBSEQUENT REGARDING OF ROADBEDS BETWEEN THE 71ME OF INITIAL GRADING AND FINAL STABILIZATION. REMOVED WITHOUT WIRIT7EN AUTHORIZATION. USE WHEREVER STONE -BASE ROADS OR PARKING AREAS ARE CONSTRUCTED, WHETHER PERMANENT OR TEMPORARY, FOR USE BY CONSTRUCTION TRAFFIC. SOIL DESCRIPTION 3.05 SILT FENCE: A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYWIE71C FILTER FABRIC STRETCHED 58 - BELVOIR LOAM-2X TO 7X SLOPES SOIL IS SOMEWHAT POORLY DRAINED, W77H 12 TO 24 ACROSS AN ATTACHED 70 SUPPOR71NG POSTS AND ENTRENCHED 70 INTERCEPT AND D SI INCHES TO THE WATER TABLE_ MADE FROM RESIDUUM WEATHERED FROM GRANITE AND GNEISS DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION THIS SOIL HAS CONCAVE DOWN -SLOPE" AND CONCAVE ACROSS -SLOPE SHAPE. NO FREQUENCY OPERA 710NS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE S17E; AND TO DECREASE OF PONDING OR FLOODING, AND MODERATELY LOW TO MODERATELY HIGH KSAT. TIE VELOCITY OF SHEET FLOWS AND L0WaTO-MODERATE LEVEL CHANNEL FLOWS THE SILT 78 - BRADDOCK CLAY LOAM-2X TO 7X SLOPES. SOIL IS WELL DRAINED, WITH MORE THAN 80 INCHES FIL FENCE BARRIERS SHALL RUNOFF INSTALLED DOWN SLOPE OF AREAS WI. MINIMAL GRADES TD SEGMENT LADEN SHEET FLOW INDICATED. THEY SHALL BE TO THE WATER TABLE. MADE FROM ALLUVIUM AND COLLU14UM DERIVED FROM AGO CRYSTALLINE INSPE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WI711 THE AFTEREACH M ROCKS, THIS SOIL HAS CONVEX DOWN -SLOPE AND LINEAR ACROSS -SLOPE" SHAPE. NO FREQUENCY VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). OF PONDING OR FLOODING, HIGH WATER CAPACITY; AND MODERATELY HIGH 70 HIGH KSAT. 37C3 -HA YESVILLE CLAY LOAM-7X TO 15Z SLOPES. SOIL IS WELL DRAINED KITH MORE THAN 80 3.07 STORM ORAIN INLET PROTECTION. INCHES TO THE WATER TABLE_ MADE FROM RESIDUUM WEATHERED FROM GRANITE AND GNEISS A SEDIMENT FILTER OR AN EXAVA 1D IMPOUNDING AREA AROUND A STORM DRAIN DROP THIS SOIL HAS CONVEX DOWN -SLOPE" AND CONVEX ACROSS -SLOPE SHAPE. NO FREQUENCY OF INLET OR CURB INLET. TO PREVENT SEDIMENT FROM ENTERING STORM DRAINAGE SYSTEMS PONDING OR FLOODING, HIGH WATER CAPACITY; AND MODERATELY HIGH TO HIGH KSAT PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA INLET FR07EC77ON APPLIES WHERE S70RM DRAIN INLETS ARE TO BE MADE OPERATIONAL BEFORE PERMANENT REFERENCE: WEB SOIL SURVEY ONLINE DATABASE, FOUND AT STABILIZATION of THE CORRESPONDING DISTURBED DRAINAGE AREA http://websoilsurveynres.usda.gov/app/WebSo:7Survey ospx 3. 9 TEMPORARY DIVERSION DIKE. GENERAL SLOPE 13:1 !R LESS) FE..._R_ACRE A TEMPORARY RIDGE DE COMPACTED SOIL CONS7RUC7E0 AT THE TOP OR BASE OF A 70T/+cCRS SLOWING DISTURBED AREA 70 DIVERT S70RM RUNOFF FROM UPSLOPE DRAINAGE AREAS 31 FESCUE 12LBS, AWAY FROM UNFR07ECIED DISTURBED AREAS AND SLOPES TO A STABILIZED OUTLET 70 TOP GRASS REED LBS, 2 DIVERT SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -]RAPPING FACILITY SUCH AS A SEDIMENT TRAP OR SEDIMENT BASIN. USE WHEREVER STORMWATET2 SFI,SONAL NURSE CROP ?0 LDS. SEASONAL RUNOFF MUST BE TEMPORARILY DIVERTED TO PROTECT DISTURBED AREAS AND SLOPES OR 150 LBS RETAIN SEDIMENT LW SITE DURING CONSTRUCTITHESE STRUCTURES GENERALLY HAVE A NURSE CROP - SEASONAL LIFE EXPECTANCY OF 18 MONTHS OR LESS, WHICH CAN BE PROLONGED WT H PROPER MAINTENANCE. FERRUAR'f 16 THROUGH APRIL ANNUAL RYE MAY 1 THROUGH AUGUST 15 FOPTAL MILLET 3.11 TEMPORARY RIOHT--OF-WAY DIVERSION: AUGUST 15 THROUGH OCTOBER ANNUAL RYE A RIDGE OF COMPACTED SOIL OR LOOSE ROCK OR GRAVEL CONSTRUCTED ACROSS NO'VEMBER THROUGH FEBRUARY 15 WINTER RYE DISTURBED RIGHTSOF-WAY AND SIMKAR SLOPING AREAS TO SHORTEN THE FLOW LENGTH NOTES: WITHIN A SLOPING RIGHT -OF- WAY. THEREBY REDUCING THE EROSION PO7ENTIAL BY DIVER71NG STORM RUNOFF 70 A STABILIZED 0U7LE7: GENERALLY, EAR77EN DIVERSIONS ARE 1. LIME AND FERTILIZER NEEDS SHALL ME DETERMINED BY SOIL APPLICABLE WHERE THERE WILL BE LITTLE OR NO CONSTRUCTION TRAFFIC WITHIN THE RIGHT-OF-WAY GRAVEL 57RUCTURES ARE MORE APPLICABLE 70 ROADS AND 0771ER TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32. RIGHTS-CF WAY WHICH ACCOMMODATE VEHICULAR TRAFFIC. 2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION J. 74 TEMPORARY SEDIMENT BASIN: OF SEED APPLICATION, IN ACCORDANCE W/ `IESCH STD 3.35. A TEMPORARY BARRIER OR DAM M771 A CON7ROLLED STORMWATER RELEASE STRUCTURE FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A PS PERMANENT SEEDING SCHEDULE DRAINAGEWA Y: 70 DETAIL SEDIMENT LADEN RUNOFF FROM DISTURBED AREAS i7 NO SCALE IN 'WET" AND 'DRY" STORAGE LONG ENOUGH FOR THE MAJORITY OF THE SEDIMENT TO SETTLE OUT: APPLIES BELOW DISTURBED AREAS WHERE 77E TOTAL CONTRIBUTING DRAINAGE (STD. & SPEC. 3.32 OF VIRGINIA EROSION & AREA IS EQUAL TO OR GREATER THAN THREE ACRES. THERE MUST BE SUFFICIENT SPACE SEDIMENT CONTROL HANDBOOK., 3RD ED. AND APPROPRIATE TOPOGRAPHY FOR THE CONSTRUCTION OF A TEMPORARY IMPOUNDMENT. ) J. CURET PROTECTION: STRUCTURALLY LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPATING DEVICES PLACED AT TIE OUTLETS OF PIPES OR PAVED CHANNEL SECTIONS TO PREVENT SCOUR AT STORMNATER OUTLETS, TO PROTECT THE OU7I.ET STRUCTURE, AND 71) MINIMIZE THE POTENTIAL FOR DOWNSTREAM EROSION BY REDUCING THE VELOCITY AND ENERGY OF CONCENTRATED STORMW47ER FLOWS. APPLICABLE 70 THE OUTLETS OF ALL PIPES AND ENGINEERED CHANNEL S£CTONS. 319 RIPRAP.' A PERMANENT, EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR S70NE KI771 FILTER FABRIC OR GRANULAR UNDERLINING 70 PROTECT TIE SOIL FROM THE EROSIVE FORCES OF CONCENTRATED RUNOFF, SLOW THE VELOCITY OF CONCENIRA TED RUNOFF WIT/LE ENHANCING THE P07EN77AL FOR INFIL IRA7TON, AND TO STABILIZE SLOPES WITH SEEPAGE PROBLEMS, AND/OR NON -COHESIVE SOILS. USE WHEREVER SOIL AND WATER INTERFACE AND THE SOY CONDITIONS, WATER TURBULENCE AND VELOCITY, EXPECTED VEGETATIVE COVER, ETC., ARE SUCH THAT THE SOIL MAY ERODE UNDER THE DESIGN FLOW CONDI710NS. 331 TEMPORARY SEEDING: THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. 70 REDUCE EROSION AND SEDIMENTATION BY STABILIZING DISTURBED AREAS INAT WILL NOT BE BROUGHT 70 FINAL GRADE FOR A PERIOD OF MORE THAN 30 DAYS TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO DOWNSTREAM OR O'-F-97E AREAS, AND 70 PROVIDE PROTECTION 70 BARE SODS PoS DURING CONSTRUC ON UNTIL PERMANENT PEGE ANION OR 0 1 R IcbSION DESCRIPTION OF EROSION & SEDIMENT CONTROL MEASURES: EROSION AND SEDIMENT CONTROL MEASURES: fv 7/ENTRANCE,R/ R P T T PROTECTION, IT !S AN77CIPA TED TO USE A CONS ONP A OUTLET DIVERSIONS A SEDIMENT BASINAND SILT FENCES TO CONTROL SURFACE DRAINAGE TEMPORARY SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE- ACTIVITIES. TEMPORARY STOCKPILE AREAS ARE NOT BE REQUIRED WITH THIS PROPOSED DESIGN. SHOULD FIELD ADJUSTMENTS NECESSITATE A SMALL S70CKPILE AREA, IT SHALL BE DISCUSSED WITH 771E ESC INSPECTOR AHEAD OF TIME. THE STOCKPILE WILL NEED TO BE MAINTAINED AND S70RED FOR LATER SPREADING. S70CKPILE LOCATIONS SHALL BE ON SITE AND SHALL BE STABILIZED W17H A TEMPORARY VEG R. PERMANENT SEEDING WILL BE PERFORMED FOR ALL 7E ET A77VE COVER. AREAS WHICH WILL NO LONGER BE EXCAVATED AND WHERE CONSTRUCTION AC77V777ES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE: SELECTION OF SEED MIXTURE WILL DEPEND ON THE 77ME OF YEAR APPLIED. TEMPORARY SEEDING WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR MORE THAN SEVEN DAYS THESE AREAS SHALL BE SEEDED W77H FAST GERMINATING IIEGETA77ON IMMEDIATELY FOLLOWING GRADING OF 7740SE" AREAS. SELEC77ON OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. 3.01 SAFETY FENCE- TO DISCOURAGE ACCESS TO A PAR77CULAR AREA. 3.02 CONSTRUCTION ENTRANCE - TO REDUCE" THE- AMOUNT OF MUD TRANSPORTED ON70 PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF 3.03 CONSTRUCTION ROAD STABILIZATION - TO REDUCE THE EROSION OF TEMPORARY ROADBEDS BY CONSTRUCTION TRAFFIC AND 70 REDUCE THE EROSION AND SUBSEQUENT REGARDING OF PERMANENT ROADBEDS BETWEEN THE 77ME OF INITIAL GRADING AND FINAL STABILIZA 770N. CONSTRUCTION ROAD STABILIZATION WILL BE APPLIED TO THE CONTRACTOR PARKING & STAGING AREAS AS NFEDEO. 3.05 SILT FENCE- SILT FENCE IS PROPOSED, WHERE SHOWN ON THE PLANS. 3.07 STORM DRAIN INLET PROTECTION- INLET PROIEC77ON IS PROPOSED ON INLETS WHERE SHOWN ON THE PLANS 3.09 DIVERSION- PERIMETER DIVERSIONS ARE PROPOSED WHERE SHOWN ON THE PLANS TO DIRECT RUNOFF IN70 A SEDIMENT TRAPPING DEVICE. 3.14 SEDIMENT BASIN- A SEDIMENT BASIN IS PROPOSED WHERE SHOWN ON THE PLANS. 3.18 OUTLET PROTECTION -OUTLET PR07EC77ON IS PROPOSED AT THE OUTLET OF PIPES. 3.19 RIPRAP- RIPRAP IS PROPOSED AT THE OUTLET OF PIPES. 332 PERMANENT SEEDING -PERMANENT SEEDING IS REQUIRED AND PROPOSED WITH THIS PLAN. 3.38 TREE PRESERPA77ON AND PROTECTION- TREE PR07EC71ON IS PROPOSED WITH THIS PLAN. SEE THE ESC PLAN FOR THE REQUIRED LOCA77ONS. 3.39 DUST CON7ROL-DUST CONTROL IS REQUIRED AND PROPOSED WITH THIS PLAN. MAINTENANCE: YN GENERAL, DURING CONSTRUC7ION THE RLD OR CONTRACTOR ON -SITE WILL CHECK ALL EROSION AND SEDIMENT CONTROL MEASURES DAILY AND AFTER EACH SIGNIFICANT RAINFALL. MONITORING REPORTS WILL BE REQUIRED FROM THE RLD IF NEEDED. SPECIFIC ATTENTION WILL BE GIVEN 70 THE FOLLOWING ITEMS a. SEDIMENT BASINS AND%QR 7RAPS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE WI7H THE VIRGINIA EROSION & 5EDIMENT CONTROL HANDBOOK. b.ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT WILL PREVENT PROPER DRAINAGE. IF THE GRAVEL IS CLOGGED BY SEDIMENT; THE GRAVEL KILL BE REMOVED AND CLEANED, OR IT WILL BE REPLACED. c.ALL SILT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING OR DE7ERIORA77ON OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHED HALF WAY TO THE TOP OF THE BARRIER. d.ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS NEEDED. IN CASE' OF EMERGENCY, THE PRIMARY CONTACT FOR THE PROJECT WILL BE THE RLD OR CONTRACTOR ON -SITE. THE CONTRACTOR AT THIS TIME IS DIGS. BROOK WOOD WITH DIGS MAY BE REACHED AT (434) 978-4435. IN ADDITION THE OWNER MAY BE CONTACTED. UPON COMPLE7ION OF THE PROJEC7; THE OWNER WILL BE RESPONSIBLE FOR SITE MAINTENANCE. EROSION CONTROL NOTES ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE' AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRAC77CES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE WWNIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS ES-2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO 774E PRE-CONS7RUC77ON CONFERENCE ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY AND ONE WEEK PRIOR 70 THE FINAL INSPEC770N. ES-3:ALL EROSION AND SEDIMENT CONTROL MEASURES ARE 70 BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. ES-4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES ES-5:PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. ES-6., THE CONTRAC7017 IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTA7ION AS DETERMINED BY THE PLAN APPROVING AUTHORITY: ES-7: ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING AC770TIES AND DURING SITE DEVELOPMENT UN77L FINAL ST48ILIZA770N IS ACHIEVED. ES-8:DURING DEWAIERING OPERATIONS, WATER KILL BE PUMPED INTO AN APPROVED WATER FILTERING DEVICE. ES-9: THE CONTRAC701? SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT: ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. F8.9'RR FABRIC 1411'1881CBRD B• �i _ ,- OO TEMPORARY 18" DIVERSION BERM 1. SET POSTS AND EXCAV,A7E A 4X4 TRENCH UPSLOPE ALONG THE LINE OF POSTS. j f -- IL / �/� I k Ili EX £D 71 T TI E E %E CONTROL MEASURES CAN DE ESTABLISHED. s..a: v.Ozswc / FLOW ,32�RMANENT STABILIZA TIONSTABILIZA TION A. TIE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLAN71NG SEED. TO REDUCE EROSION AND DECREASE SEGMENT YIELD FROM DISTURBED AREAS TO PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTABLE TO 97E CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT 70 ENHANCE NATURAL BEAUTY. UPON COMPLE71ON OF CONS7RUCT7ON ACTIVITIES, ALL AREAS KILL RECEIVE A PERMANENT VEGETATIVE COVER. 338 TREE PRESERVATION AND PROTECTION: FR07EC77ON OF DESIRABLE TREES FROM MECHANICAL CR OTHER INJURY DURING LAND DISTURBING AND COIVSTRUC77ON ACTIVITY. TO ENSURE 77-,E SURVIVAL OF DESIRABLE TREES WHERE THEY WILL DE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, WATERSHED FR07ECTION, LANDSCAPE DEAU77FICATay, DUST AND POLLUTION CONTROL, NOISE REDUCTION, SHADE AND CRIER ENVIRONMENTAL BENEFITS WHILE THE LAND IS BEING CONVERTED FROM FOREST TO URBAN -TYPE USES. APPLIES IN 7REE-INHABITED AREAS SUBJECT TO LAND DISTURBING AC77WIlES. 339 DUdT CONTROL- REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOL177ON AND CONSTRUCTION ACTIVITIES. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEAL 711 HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE DUST CONTROL MEASURES SHALL BE EMPLOYED 70 PREVENT SURFACE AND AIR MOVEMENT OF DUST DOTING CONSTRUCTION MEASURES EMPLOYED SHALL BE IN J. ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND IT INTO THE TRENCH. __011. ,- i u4I ql I // lam/ �l II F 2 STAPLE WIRE FENCING TO THE POSTS. 4. BACKnU AND COMPACT THE EXCAVATED SOIL /. 11II hI 11' .. /� ;III=III '-T - EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. �UPER SILT FENC r ssF WITH WIRE -BACK o5- ACCORDANCE KITH THE VESCH Swece: Va. DSWC NO SCALE STONE CONSTRUCTION STONE CONSTRUCTION ACCESS -\ AI/N - .3" SM-2A ASPHALT TOF COURSE 2X 2I I 12X EROSION CONTROL NOTES & NARRATIVE PROJECT DESCRIPTION. THE PURPOSE OF THIS LAND DISTURBANCE ACTIVITY IS TO CONSTRUCT RESIDEN77AL HOMES AND THEIR CORRESPONDING INFRASTRUCTURE. THIS PROJECT PROPOSES TO DISTURB A TOTAL OF 7.06 ac (6.03 cc. REQUIRED FOR THIS SITE. 1. 03 �c. FOR THE EMERGENCY ACCESSWAY CONNECTf N TO GLENBR00K DEVELOPMENT WHICH !S COVITRIC UNDER THE FOOTHILL CROSSING It vSMP AMENDMENT 12 14P6207700020 PLAN) OF LAND. THE PROJECT WILL BEGIN ITS CONS7RUC77ON WITH THE PROPOSED ESC MEASURES IMMEDIATELY FOLLOWING PLAN APPROVAL WHICH IS AN77CIPA TED TO BE IN THE SUMMER OF 2019. THE WORK IS AN77CIPA TED 70 BE COMPLETED WITHIN 18 MONTHS AND 70 CONCLUDE IN THE WINTER OF 2021. EXISTING SITE COND177ONS. LOPMENTIS LARGELY WOODED AREAS OPEN SPACES AND LIGHT UNDERBRUSH 7111S SITE GENERALLY SLOPES FROM THE WEST TO THE EAST TOWARDS THE EXISTING STREAM. THE SITE GENERALLY CONTAINS MODERATE SLOPES AND IS WELL DRAINED. ADJACENT AREAS,• THIS SITE IS BORDERED ON THE WEST BY CRANBERRY LANE & ITS EXISTING RESIDENCES THE SITE IS BORDERED BY THE CLAUDIUS CROZET PARK DN THE SOUTH. A STREAM PROPOSED 70 BE PRESERVED IS LOCATED TO THE EAST AND AN ACTIVE' CONSTRUCTION SITE IS LOCATED 70 THE NOR771 (FOO771ILL CROSSING PHASE IF). SILT FENCE W77H WIRE BACKING, DIVERSIONS, A SEDIMENT BASIN, INLET CONTROLS AND VARIOUS OTHER ESC MEASURES ARE PROPOSED 70 LIMIT THE PO TEN 77AL FOR CON TAMINA 77ON OF THESE ADJ.A CENT PROPER NES AND WATERWAYS. OFFS'ITE LAND DISTURBANCE: Or•FS1IF LAND DISTURBANCE IS PROPOSED IN THE PROJECTS IMMEDIA7E VICINITY. SUFFICIENT DOCUMENTED PERMISSION SHALL BE OBTAINED FOR ANY DISTURBANCE OUTSIDE OF THE PROPERTYs LIMITS AND PUBLIC RIGHTS -WAY. SEE -SOIL DESCRIP77ONS ON THIS PAGE AND THE PHASE I EROSION & SEDIMENT CONTROL PLAN FOR BOUNDARIES, SOIL TYPES AND SOIL DESCRIP71ONS. CRITICAL AREAS: A STREAM AND ITS ACCOMPANYING WPO BUFFER ARE LOCATED TO THE EAST OF THE PROJECTS PRIMARY CONSTRUCTION ACTIVITIES THESE AREAS ARE DOWN GRADIENT FROM THE VAST MAJORITY OF THE PROPOSED DISTURBANCES THESE AREAS, IN ADDITION TO THE MANAGED STEEP SLOPES, ARE CONSIDERED 70 BE CRITICAL AREAS THE CONTRAC70R SHALL GIVE EXTRA AT7EN77ON AND CAUTION IN AND AROUND THESE AREAS 70 ENSURE SEDIMENT IS NOT DEPOSITED ON THEM OUTSIDE THE SCOPE OF THE PROPOSED PLAN. TREE PR07EC71ON FENCING, SILT FENCING, DIVERSIONS AND SEDIMENT TRAPPING DEVICES SHALL ALSO BE INSTALLED AS A FIRST STEP IN LAND DISTURBANCE TO ENSURE THESE CRI77CAL AREAS ARE MAINTAINED. SEQUENCE OF CONS7RUC770N: 1. CONTRACTOR SHALL NOTIFY THE ALBEMARLE COUNTY COMMUNITY DEVELOPMENT ENGINEERING DEPARTMENT TO SCHEDULE A PRE-CONSTRUC1ON MEETING. 2. PRIOR 70 DISTURBANCES, 711E LIMITS OF DISTURBANCE SHALL BE FLAGGED AND THE TREE PR07EC77ON FENCING SHALL BE INSTALLED. 3 NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT THE APPROVAL FROM 711E INSPECTOR ON THE PROJECT. 4. INSTALLATION OF THE PROPOSED CONSTRUCTION ENTRANCE SHALL OCCUR NEXT: TIE CONTRACTOR SHALL APPLY CONSTRUCTION ROAD STABILIZA 7701V AS NEEDED. CON7RAC70R SHALL ENSURE 711E CONSTRUCTION ENTRANCE DRAINS TO AN ADEQUATE E&S MEASURE. A NEARBY SEDIMENT TRAPPING DEVICE IS PROPOSED TO HANDLE SMALL, FLASH WASHOFFS FROM CONSTRUCTION VEHICLES. CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONS7RUC71ON VEHICLE ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE 70 MINIMIZE THE TRANSPORT OF SEDIMENT BY (VEHICULAR) TRACKING ON70 7HE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ON70 A PUBLIC ROAD SURFACE, 711E ROAD SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTING 70 A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. 5. THE INITIAL ESC CONSTRUCTION MEASURES, AS SHOWN ON THE PHASE I EROSION & SEDIMENT CONTROL PLAN, SHALL BE INSTALLED NEXT: 7HE CONTRACTOR SHALL BEGIN BY INSTALLING THE PERIMETER SILT FENCE AND TREE PR07EC77ON. PERIMETER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP KITH ANY LAND DISTURBANCE ACT70TY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. 6. ONCE THE PERIMETER EROSION COMROL MEASURES HAVE BEEN INSTALLED, AND THE COUNTY INSPECTOR HAS APPROVED THESE MEASURES THE CONTRACTOR CAN BEGIN LIGHT CLEARING. THE CONTRACTOR SHALL BEGIN BY CLEARING THE AREAS REQUIRED TO ACCESS THE LOCATIONS OF SEDIMENT BASIN AND ITS CONTRIBUTING DIVERSIONS. INSTALLATION OF SEDIMENT BASIN #1 SHALL IMMEDIATELY FOLLOW THE SELECTIVE CLEARING FOLLOWING THE INSTALLATION OF THE BASIN, 771E CONTRACTOR SHALL INSTALL ITS DIVERSIONS ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON 71•IE PHASE l EROSION CONTROL PLAN SHALL ALSO BE CONSTRUCTED AT THIS TIME. 7. ONCE ALL THE PHASE l EROSION CONTROL ITEMS HAVE BEEN INSTALLED & ARE OPERATIONAL, DRAINAGE IS PROPERLY CONVEYED 70 THESE MEASURES, AND 771E ESC INSPECTOR HAS GRANTED APPROVAL, THE CONTRACTOR CAN BEGIN CLEARING THE REMAINDER OF THE SITE. TEMPORARY SEEDING, PERMANENT SEEDING AND DUST CONTROL SHALL BE IMPLEMENTED AS REQUIRED. & AFTER CLEARING THE PROPOSED AREAS, THE CONTRACTOR CAN PROCEED 70 PHASE Il OF THE EROSION & SEDIMENT CONTROL PLAN. 711E CONTRACTOR SHALL BEGIN ROUGH GRADING THE SITE TO THE CONTOURS SHOWN ON THE PHASE 11 EROSION & SEDIMENT CONTROL PLAN. AS THE ROUGH GRADING OCCURS THE CONTRACTOR SHALL MAINTAIN, AND MODIFY AS NECESSARY, THE PERIMETER DIVERSIONS FEEDING THE SEDIMENT BASIN. THESE DIVERSIONS SHALL REMAIN FUNCTIONAL AS LONG AS POSSIBLE AND SHALL NOT BE MODIFIED OR REMOVED WITHOUT PRIOR APPROVAL FROM THE ESC INSPECTOR MEASURES INTENDED 7"0 TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP W771 ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES FL ACE. 9. ONCE 717E 517E IS ROUGH GRADED THE CONTRACTOR CAN BEGIN INSTALLATION OF THE UTILITIES CURB AND GUTTER, AND ROADS. INLET PROTECTION SHALL ALSO BE INSTALLED AS THE STORM SEWER IS CONSTRUCTED. INLET PROTECTION SHALL BE INSPECTED AFTER EACH RAINFALL EVENT AND REPAIRS SHALL BE MADE AS NEEDED. IF THE STONE FILTER BECOMES CLOGGED WITH SEDIMENT SO 771AT IT NO LONGER ADEQUATELY PERFORMS ITS FUNCTION, THE S70NE MUST BE PULLED AWAY AND CLEANED AND/OR REPLACED. 10. INSTALL THE CUL PER FOR THE EMERGENCY ACCESSWA Y. 10.1. CONIRAC70R SHALL INSTALL AND MAINTAIN A STREAM FLOW DIVERSION PER DIVERSION CHANNEL CROSSING VESCH DETAIL 325-1 DURING EN77RE CULVERT CONSTRUCTION OPERATION. 10.2. SILT FENCE SHALL BE INSTALLED ON B0711 SIDES OF THE PROPOSED STREAM DIVERSION CHANNEL THE CONSTRACTOR SHALL INSTALL AND ADJUST SILT FENCE AS NECESSARY TO PREVENT SOIL FROM ENTERING STREAM, RIPRAP SHALL BE PROVIDED KI71TIN 7H£ EXISTING STREAM BED AT THE TRANSITION FROM THE EXISTING STREAMBED TO THE PROPOSED DIVERSION CHANNEL, AND AT THE TRANSITION BACK FROM THE DIVERSION CHANNEL TO THE EXISTING S7REAMBED. AN APPROVED FLOW BARRIER (SANDBAGS, PLYWOOD, JERSEY BARRIER, OR EQUIVALENT) WILL BE INSTALLED BEHIND 711E RIPRAP TRANSITION. 10.3. THE DIVERSION CHANNEL CROSSING MUST BE OPERATIONAL BEFORE WORK IS PERFORMED IN THE STREAM (CONSTRUCTION OF DIVERSION SHALL BE PERFORMED 'YN THE ORY"). 10.4. ONCE 711E STREAM IS DIVERTED, THE CONTRACTOR SHALL INSTALL THE PROPOSED CULVERT 10.5. UPON COMPLETION OF THE CULVERT INSTALLATION, AND WITH INSPEC70R APPROVAL, THE C01VTRAC70R SHALL REMOVE THE STREAM DIVERSION AND ALLOW STREAM FLOW TO RESUME THROUGH THE CULVERT. 11. 711E CONIRAC70R SHALL INSTALL ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON 711E PHASE II EROSION CONTROL PLAN. TEMPORARY SEEDING, PERMANENT SEEDING AND DUST CONTROL SHALL BE IMPLEMENTED AS REQUIRED. 12. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED 70 DENUDED AREAS K17HIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY POR77ON OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED 1014711IN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT UNDISTURBED FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 13. ONCE PHASE 11 OF CONSTRUCTION IS COMPLETE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR CAN THEN CONVERT SEDIMENT BASIN }7 INTO THE PROPOSED SWIM FACILITY. AT THE TIME OF SEDIMENT BASIN #1's CONVERSION 711E INLETS, AND ANY P07EN 77AL ASBUILT YARD ORMNS, SHALL BE MADE OPERA 71ONAL AFTER THE BASINS CONVERSION THE CONTRACTOR CAN REMOVE 711E REMAINING EROSION & SEDIMENT CONTROL MEASURES NO 17EM SHALL BE REMOVED, THROUGHOUT ALL PHASES OF CONSTRUCTION, UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE INSPECTOR GIVES PERMISSION. 14. 711E CONTRACTOR SHALL MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE WITH 711E VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 15. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL 571E STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS 07HERKISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOS177ON OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FUR IHER EROSION AND SEDIMENTATION MIN. 21A AGGREGATE BASE MIN. -ASPHALT PAVED WASHRACK 2% 12' MIN.* 1 POSITIVE DRAINAGE *MUST EXTEND FULL WIDTH yA� � 70 SEDIMENT � OF INGRESS AND EGRESS TRAPPING DEVICE OPERA 770.N PLAN I 12' MIN. 29 SECTION A -A PAVEMENT -EXISTING I PAVEMENT POSITIVE DRAINAGE 71 SEDIMENT TRAPPING; nFVICF A minimum water tap of 1 inch must be instollea with o minimum 1 inch bollcock shutoff valve supplying o wash hose with diameter or 1-5 inches for adequate constant pressure. Nosh water most be carried away from the entrance to an approved settling ores to remove sediment. All sediment shall be prevented from entering storrn droins, ditches or woterccurses. PAVED WASH RACK Hin CIA. C FENCING AND ARMORING 11 II, - 1, ` L II "' R - 111 ' . r I . i FuIdIIIIIIImiIII�I�V,i .......,.. Igllllll��IIil,iillIlF. ICI\ I �,. . f; I I\ ■VI coax FENCE .A/ - � PIAIMC FENCE CORRECT METHODS OF TREE FENCING � , �«- CORRECT TRUr K ARMORING go TRIANGULAR BOARD FENCE ROCK CHECK DAM (DOWNSTREAM VIEW) 11 .' F •.6�; Y:L: F •4u I j��%"ram`~w:. C.._ -- .. ?: -. :?ma's}%i;•`�iQ �•1:: �__ '. �e ra':{• Ia:F:.: F:F.�•.M:�'C ::Ari:: �v.;irt»!i!�:1r3:Y. 2-10 ACRES OF DRAINAGE AREA. 1 110 . �.��... • �11•NftsZOR SI-41•� -i•!. 1• V 0 D T1 9 COARSE AGGREGATE FLOW CLASS I RIPRAP Source: Va. DSWC PIaie 3.20-1 U92 3.1/ PIPE OUTLET CONDITIONS Source: Va. DSWC Ill - 157 IPE OUTIET TO FIAT AEA VITH NO DEFINED HANNEL Plate 3.18-I SCOTTFR. CO•LLINS2� .-. Lic. No. 035i91 a p vew 06/02/20 v/ rn .-r rn .-I o N In o ; .-r N � M . 1j ❑ ❑ ❑ J Q O 'A U) p p ❑ 0- Z a. Ce Z 0 a Q Z w Z w wCe f O 2: 2: � 2 Of m O O O uU U Ua N ❑ _j f f N ""' O > > > _ U1 Z W W w Z w o_ 0- a U N U) W g g 5 f Wd ❑ a ❑ O. w Ln > Lu Of Of O� 0 PIP � o \ M w \ \ Q N N In N ,1 v � m 0 ti " C0 N N WCD N N W Q zw J J_ w 13 J of U W Y V 0 O N Am Q I- LLI 0 z °6 W a- F In/ z LL/ � /•� L L VJ Q > z \I ) / W w0 QZ 2 J - V z o ,(n U V / O z 11 W U 2 J_ 0 = 06 O O L.I_ W O w w EC M CL I Ln JOB NO. 112066 N/A SHEET NO. 3 `0 0 B `0 0 Sediment Basin Design 41 5 T\y`X\ SEDIMENT BASIN #1 DETAIL / drainage area (acres) 4.02 DESIGN NIGH WATER '�'� W� o�sr� rNr. / . I - ,,.� ✓ y \ \ \\�\�\+ \' SCALE 1 "=20' TH basin volumes: (using 2' contour Intervals)MAY.J- PROPOSED TEMP. '---- --"- _ _ _ - _ - \ DIVERSION (D_M S m J elevation (fl) contourarea (sf) volume(ey) a,• % J S r 647 375.0 0 5 Y � 648 2830.e ss • a., • SrGNdE �/ � � io' wIDE TOP of DAM � � � �SCOTT R. LINti N0 / z lY^\ \ \ ELEVATION-656', TYP, r S 650 3818.0 342 \ \ PROPOSED FLAT VONW/GCLASS AXTILEFCOARSE AGGREGATE .\ \ \ L) Lic. No. 035791 _ - __ / OUTLET PROTECTION w/ GEOTEXTILE FILTER FABRIC 652 4907.0 884 .E. / // - - \ ""'` \ `. \�� SILT FENCE UNDERLAYMENT TO EXTEND TO STREAM BANKS. _y i�\+ w'J� 01/30/20 654 6096.0 1071 / s \ ONTRACTOR SHALL NOT DISTURB EXISTING STREAM. i� \ O7 \y smyprr ci . wr ram .... \\ \ `\ /� 656 7387.0 1588 ('M -srwrcx amuan ✓ / / \ .- \ .,...\ $\� (L10 Wl cfs, W2 22±,x1.2 MIN.) �� \ i� "F\\ IONAL F'�G ro 3. c.7 X� / TREE Q10 ESC-10.5 cfs, Wl 3xD-3z1.25'-3 75 , i'I- ��pp��\ + PROTECTION 2=D+0.4xL 1.25'+0.4*21=9.65' MIN., La=21 MIN. �� wet storage 5 / _ \ \+k LIMITS OF wet storage required (cy) (67'DAI 269 design high water 654.50 - / \ \ S _ \� \ DISTURBANCE PROPOSED io4.00 OF�- \ \ His CO III RCP .0 ' OF J" �\ WITH VDOT STD. EW 1PC dewatenng orifice elevation (ft) 650.25 top of dam (ft) 656.00 _,' " '/ ---- _-, � �, -' � k\ (INV IN=644.00; INV wet storage prodded at this elevation (cy) 378 top width of dam (ft) 10.0 �' - SO TYPE / ' ROP05ED z ' WIDE GRASS / - �- � \�" S OUT=638.00') >� o available volume before cleanout (cy) (34'DA) 137 bottom of basin (ft) 647.0 - / / - \ \�\ LINED EMERGENCY _ 37 �.. �."4I SPILLWAY W/4:1 SIDE cleanout elevation (ft) 648.31 approx. bottom dimensions: 27k86' � / . / � i 1 \ -- \ "r\� SLOPES &CREST distance from cleanout to orifice (ft) (> 11 1.9 upstream face slope: 2:1 / i.� \ - _ \ ` ELPES & downstream face slope: 3:1 dry storage: SOIL T1T,,' dry storage required (cy) (67'DA) 269 baffles: YES I _ 5 principle spillway crest (ft) 653.50 length of flow. L (ft) 21 dry storage provided at this elevation (cy) 583 effective width, We (ft) 275.5 diameter of dewatering orifice (in) 6.D L / We (baffles required if < 2) 0.1 'v diameter of flexible tubing (in) (orifice+2") 8.0 PROPOSED SWM PRESERVATION.. ✓ �X-X� collars: YES N I EASEMENT AREA ENCOMPASSED runoff. depth of water at spillway crest (ft) 6.5 WITHIN ESMT., TYPICAL C (use 0.45 for bare earth) 0.45 slope of upstream face (Z:1) 2 - / /+ \ PARCEL LIMITS -\ to (min) 8 slope of barrel (Sb) 5.77% I / /}/. - -\\�\ (TYP.) 12yr 4.5 Q 2yr 8.1 length of barrel in saturated zone (Ls) 50.7 125yr 6.5 Q25yr 12.9 number collars required 2 I // + dimensions of permanent collars 4.55K4.5' WIRE BA KING SF //// _� \ \\+ X�X PROPOSED principle spillway: � I / }/ ♦ � ♦ ft � \+ 100' WPO STREAM � BAFFLE a71 O o � � N rj M /} }/ Lu w Lu V/ N Z Z ¢ z z W N U) j O O V w � � � a available head (ft) 1.00 emergency spillway: YES U) - f�/ ♦ ♦ 46 \\ BUFFER, �'/ 'k �r 1� VJ 0 J � � / /�' ♦ \ \ }/ PROPOSED 030" CL. III RAC S�w/TRASH RACK Z EA t/1 diameter riser (in) 30 required capacity (Q25-Qp) (cfs) 0.0 •, / �i� ♦ -F\ }/ SERVE AS THE RISER STRUCSIR E TRASH RACK D N O ~' D > spillway capacity, Op (cfs) 23.0 bottom width (ft) 25 1 - �` _-.. / i �, \+\ }/-V-/ SHEET 6. RISER RIM ELEV.= �50' WITH ONE (i) i' \ ` U) Z w w a diameter trash rack (in) 42 slope of exist channel (ft/ft) 33% I - i f�/ - k / ` / a a i - O \ } FLOW ORIFICE (INV=646.o')TE RARILYSEA E1-0 barrel length (ft) 104 minimun length of exit channel (ft) 18 i 658. Sys , \ }/ .PROPOSED SAFETY FENCE, 06" MID -FLOW ORIFICE (INV. 6 o.z SED A O RY M N N Z I i �' \ \ }/ INSTALL SIGNS "WARNING 5 ) Uj Z Z head on barrel through embankment (ft) 10.5 crest of spillway (ft) 854.5 i X �(! / DEWATERING ORIFICE AND THREE F W g diameter of barrel m 15 I X� x ��-I- + QUICKSAND, KEEP OUT" g rz O /f .. rx X♦ � ♦ 0� \ ORIFICES (INV=65i.z5') TEMPOR AL � W W W / ♦ ,� TO PREVENT FLOTATION THE RISER ` \-i\� U) U) 658.5 % �, ` � BASE AND BARREL CONNECTION \ w LU Lu SHALL BE FIRMLY EMBEDDED 6" \+ K of X _SOILTYPE ,, PROPOSED CONIC. INTO AN 18" THICK CONCRETE 37C3 -- - -- 0*, ` ` WASHOUT AREA PROPOSED TEMP. FOUNDATION TH)\TIS7.5'x7.5', AND ` DIVERSION BURIED BELOW GROUND.411 \i / L/ �(c , - - T J II _ ,,}/}/ PROPOSE D LIMITS OF DISTURBANCE7,06 a[. \ \ s TOTALl 00 CM CD r1j PROPOSED 18" DIVERSION. kv k� X ��. -- w rN \ / rN � x CONTRACTOR SHALL ENSURE Q N N POSITIVE SLOPE IS MAINTAINED. UU AFIRST3TEPBNSIBILI-NAS " x\k� 1CD rc 41 u _ k A S v 0 411#® e ,�\\ TP TREE \\ �� / x• ®� �� V A PROTECTION S; I 10 - \ ® , - �- SOILTYPE ) • T \ \ J x SOIL BOUNDARY, 37C3 I( 1' TYP. ' \ \ \ �,_ -' . ♦ \-I'\ \ \ /'�/X \ \"{- �1T� . 656 CY) 0 co If I • / - solLT�vPE C ' z 411 SOILTYPE - - - v\ "� i • ' sal ♦v+ +i}/ w I II m I • v 1 \�\ // �- --- - - % .PROPOSED LIMITS OF j. , ^„ DISTURBANCE COINCIDES / I PROPOSED SAFETY FENCE, z WITH THE PROPERTY LINE. �• X INSTALL SIGNS "WARNING GAF '� f PROPOSED _ ) �� 'y QUICK SAND, KEEP OUT" \. f. `.TREE LINE (n W v (TYP.) .. w V 3 / � L9 i Q PROPOSED R18"S DIVERSION. D TR TREE �� . CONTRACTOR SHALL ENSURE � LU SB # 1 ' PROPOSED CONIC. POSITIVE SLOPE IS MAINTAINED. \ \t\ PROTECTION \ \ IL L.L x � � I - f WASHOUT AREA j PROPOSED - ° 3.97 aC. BAFFLE BERM SHALL BE STABILIZED AS\\ w/ WIRE ( � - x A FIRST STEP IN DISTURBANCE. ` �- _ (/ LU t 1 BACKING to SOILTYPE 9 7B x • } _ 1 �I w 1 1 I � PROPOSED STOCKPILE LOCATION - ,v/1, , -x -}/ , MANAGED STEEP � _ " W l SURROUNDED BY SILT:FENCE. NOTE, X } 1 SLOPES (TYP.) A�� 1'.L # m (1 i 1 THE PROPOSED SITE IS LARGELY IN CUT �"��"� i\V �� I PROPOSED SAFETY FENCE �� ( , 0E� SO CONSTRUCTION CONDITIONS MAY X�X • � ` \ �.%� I Ln LL �I (Y J' I fP ON WESTERN PROPERTY SAF �, , ELIMINATE THE NEED FOR A STOCKPILE. • `� SOIL TYPE ( O BOUNDARY TO PROTECT j # ` + v i 11. EXISTING SINGLE FAMILY SS wLij f ill � HOMES x _ _ \ w _ Il _ _ I ♦ ♦ �Tv F4 L U - - I _ I V1 f ` Cn I 1" THE FUELING TANK SHALL B COC�O PLETELY SURROUNDED BY A 2' SOIL TYPE"% DEEP, 2' WIDE EARTHEN BERM WITH A HEAVY MIL POLYETHYLENE : 78 x�"� r �Lu O 0- LINING, OR BE PLACED IN AN IMPERVIOUS OPEN -TOP DUMPSTER. I THE PROPOSED BERM OR DUMPSTER HALL CONTAIN FUEL IN THE I° EVENT OF A SPILL. CONTRACTOR SHAENSURE VOLUME CAPACITY \ \ I 3 ) IS 10% LARGER THAN THE MAXIM 'VOLUME OF STORED FUEL. Q U_ >c LOCATION OF FUELING AREA LOCATION OF , \f \f / a ° 15ey DUMPSTER , \ \ OO LOCATION OF _ - - - - - - - )IL TYPE PORTA-POTTIES \ rl- ❑ ❑ ❑ ❑ ❑ ❑ I f.00 a C - PROPOSED ESC PHASE I DIVERSION •\fI' ^��*- - - I • - SHALL FUNCTIONAL G AS POSSIBLE. CONTRACiOR SHALLw I- 3 I - COORDINATE THE TIMING OF ITS V A lu \ INDIGO ROAD w/WIRE I �\ / o I„ LFO' PUBLIC RAW BACKINGS REMOVAL WITH THE ESC INSPECTOR. i f\ _ $ r W W w W w w w w w w w 1_tl w w- w - , - --- - JOB NO. -'I f 112066 Pill 30 - - b - - 15 7b 80 i� 120- - - - r �_�� - -'- SCALE PROPOSED PAVED CONSTRUCTION ENTRANCE C€-112'x70'_MIN_)w/-ONSIT€WASH -RACK DOWN _- -- E nn+Favr _4RWD CONTRACTOR SHALL INSTALL A - PROPOSEII-CONTRACTOR _ GRA NT FROi:'LRL1K_.SIDN- - R/W DIVERSION ACROSS THE CRS PARKING & STAGING PROPOSED LIMITS OF DISTURBANCE COINCIDES WITH THESHEET NO. FEET - -- -_ CONSTRUCTION ENTRANCE. AREA WITH RAIN GAUGE SILT FENCE AND THE PROPERTY LINE. THE DRAINAGE DIVIDE 4 AND SILT FENCE ARE OFFSET FOR GRAPHICALLY PURPOSES. `v ACCESSWAY ESC PHASE II EXHIBIT \ GRAP C 9 AL / NOTE: PROPOSED SLOPES STEEPER THAN z:1 \ EXISTING POND APPROVED UNDER WPOzo1 000zo \� // 7 MATCHLINE I x 9 I SCALE: 1 " 80' COVER SUCH AS MULCH OR JUNIPER PLANTINGS. A� /�� l \ — r ao o +s 30 o SHALL HAVE LOW MAINTENANCE GROUND \ / % I SEE THIS / TH QF \ \' " . y SHEET f I / -E3o SC( R. LINS� x snch ft \ \ \ � f _ ll ` � Lic. No. 035791 � \ ` y �'�I I AREA OF EMERGENCY ACCE oP, _' �� PRIMITIVE NATURE TRAIL. NO \ \ - "� y I I I X t� 01�3��20 'rV � PROPOSED CLASS B, TYPE 1 \ � \ \ ` \ � � W I DISTURBANCE (1.03 ACRE / �� x I Orc, . f I I \ PROPOSED WITHIN / I �`SS'IO BAG\ / °y DISTURBANCES SHALL � \ ; - � �' � \ y y � '', 1 EXISTING LIMITS OF x NAL y, WITHIN THE57 RO BUFFER OR \\ \ ` ly �"" I DISTURBANCE APPROVED'�I III z OUTSIDE THE PROPOSED LIMITS \ \ yI I FOOTHILL CROSSING II VMP I CD 'T✓ 1 C - ,� �� `,' ' ° o / SECTION OF THE TRAIL. T S \ \ RIPRA`l� \ \ y i'\ AMENDMENT #2 I I I x w / 0 S 5 / OF DISTURBANCE FOR THIS \ \ W I x y y (WP0201700020) I1 x e \ TRANSITION L. . Vy y \ I ; \ BOUNDARY OF NEW L1g1 0 x z DISTURBANCE PRQPOSEDI�IITS,��\ x o I I o ✓ \ \ \FLOW BARRIER (SANDBAGS, P�10NOOD, / THIS VSMP AND REGIS A770N' - --- - 5F 5 / lv r o \ \ E SEY BARRIERS, OR EQUIVAL T STATEMENT = 6.03 ACES` \ X o i \ — \ N$TALL STREAM DIVERSION AT LOCATION � \ I (.�+ / m PROPQ ED EMERGENCY ACCESS LVERT ` \ r v �Q \ AT THE TIME OF THE SITE's ROUGH GRADING THE r= _ ` �cr J _� \ - \ BACKING. i \� m rn o CONIKAUIUK SHALL RECONFIGURE, AS NECESSARY, THE _\ \ \ s A x ESC PHASE I DIVERSION TO ENSURE IT REMAINS /. X � FUNCTIONAL DURING ESC PHASE II, CONTRACTOR SHALL PROPOSED SWM PRESERVATION.. X COORDINATE ANY MODIFICATIONS & REMOVALS OF - X X `` X-_ - X_X - X - - - „(X _ 0 ip� DIVISIONS WITH THE ESC INSPECTOR. ESC PHASE II \ \ \ X a ° EASEMENT AREA ENCOMPASSED / - \ •� X - -�X--YEA � _ - X X w w � WITHIN ESMT., TYPICAL - �, --/ L AS LONG AS POSSIBLE. \ ` X - �C \ - X X X H- �, K 1 - ♦ \ X-- X-- \ \ - X X X Q Q a -y -'{ � j _ f C ; � , DIVERSION TO REMAIN FUNCTIONA PARCEL LIMITS -` � � - X � � \ _ - - X X X❑ ❑ N v >` ,�`_ �� r( - T I I�I� - I // j// - -- ,♦ \ (TYP.) T, \ ��,\ k X X�YC _�FL6W BARRIER NDBAGS,.PYWOOD, �- - �XX X_I Z A- �r \ JERSEY BARRI S,OR EQUI ENT) - -- _ X X y 0 Q z z w f / j L i F ° / / / ♦ \ �X X� 1 `1 \ — w w p I ♦ \ ,� - _ \ RIPRAP AT X X- O •• o WIRE S // ♦ f\ X . _ �. Li- X X X Kj m O O _ >: BACKING / j ♦ \'I" X�X \ \ X X N U U U 'i — — \ TRANS SOfd X O w x x..- ,--' / / I I I / 1 ♦ \ 10 `WP STREAM 'A o En >I \ + X- vl cn s IF ,� r' - - J L _ - . I _ _. - / �� ♦ A kv kv _ X X ul z w - - - �.-: Z Z j 1 -1\ y L / x/ x x � > \ \ \ j- � I ♦♦ li -- _ - _ �' IGNMEN -0 STRE \ �-1- s \ ` ❑ ❑ (q = SUBDIVISION APPROVED _ _ X X ♦ ��a w w w ° K> UNDER SUB201400187 — x — x \ ♦♦ I ED\k\-I' x- (UNDER CONSTRUCTION) x wH R IN r / ♦ — XX _ A A vvv � �oz _ i r ti to — ° X V V -° I �\ \V.,. PROPOSED 50'GREENWAY��\\ �. L-WE_ TO BE DEDICATED TO e SEE THIS SHEET dam, I 'z \ ♦ / r V A \ ° �- SE MITS OF LBEMARLE COUNTY \ ,.. I �� / � � � - '. � I � � ♦� � � DISTURBA CE - 06 ac. V A � � � A � c \ ♦ TOT \ \ c DIVERSION CHANNEL CROSSING I / �� \\ ° vv -FLOW _ - �X o - - - \ _ �� o FORMER LOCATION w,°F PROPOSED 18" DIVERSION. ,�, \ \ �� \ \ '2 Lu °} OF FLOW awR[R CONTRACTOR SHALL ENSURErq a-r FENCE ' j ( I' I POSITIVE SLOPE IS MAINTAINED. I „ , ` \ \ \ z ❑ v m - x I ° BERM SHALL BE STABILIZED AS �,� \ �\ 0 0 1 �rrooe c�ROTa-stcnoN / I A FIRST STEP IN DISTURBANCE. ' I ♦ �kv \ \� �,, c A -A _ . / <,\ 1 -U I / 04 _ \�\-IV PRIMIFNE NATURE OPOSED B, PENS S �. . TYPE TR TREE DISTURBANCES SHALLLAICCUR WHioOUR STRUM OTECTION °Q CWSSNC. WITHIN THE STREAM BUFFER OR pptt SPED. 3.24 RIA4� `. ^ / OUTSIDE THE PROPOSED LI�Q�S 00 BE LOCATED AT - �• /�� p,pR,,p ` / 'I e , �' IS \ \ oRiawv. sTREAMaa _ `• a `\ OF DISTURBANCE FOR THIS FOR RnTNL cRassxcs) .. �✓ ATR TRANSITION I ° - :-- �� yH-. SECTION OF THE TRAIL'. - - PROPOSED DRAINAGE I® ♦♦ +\ / °m eA FLow RuzairR - DIVIDE COINCIDES WITH ° ♦ ,�f\ i/ +/j/ s\ (�f o0 --- THE PROPIrIFTY LINE & I - --- - IV % ♦ _ A X \, ®® �A .- PROPkYSED CUT. �; I IP - I ♦♦ \�\ \ X X XX Xj/ VA ��. (� a Y CD +\ CV - C ° FLOW A I �� — I t\IC /j/I \ \ \S\ > o a � .PROPOSED LIMITS OF I. ° � \ ♦ � I \ � � \ DISTURBANCE COINCIDES I to OS D S FETY FENCE, 1 0. - � N. - FLOW BARRIER AI WITH THE PROPERTY LINE. - II I ST LL IG S "WARNING eA - I fV `PROPOSED A \\ > n (Rw . saTOencs, \ _ I �i- I UI K S N KEEP OUT" 1 \,./. 'TREE LINE \ L ` MEFS OR r i wRcoH cnc I I 5 ` \\ (TYP.) \\ s\ W W U o FORMER LocA oR RucE RiRRnP OPERATOR I II IP / �� " ' \ I / \ \ \ \ \ \ \ ~ 4./ / 1 A �� A z W Fl.IOM flWUkl[R AT T'RAtr5rt'gN "'� / _-... ° , II VIEW A T PERSPECTIVE VI 11 �'I li I. + PROPOSEDI8"DIER ION. CONTRACTOR SHAL EN URE , TP TREE Source: Va. DSWC - - - ° IP. I - I PROPOSED PROPOSED P SITIVE SLOPE IS MAINT INED \ \-J\ PROTECTION Plate 3.25-1 I �I WASHOUT ARE BAFFLE B RM SHALL BE STABILIZE \ \ \ Q Q -O im 3.25 - _ A RST STEP IN DISTU BANG . vfv• BACKING A V (D W W/ WIRE a P �z SB #1 — 14.02 ac. x LU !/� a MNAGED STPE SLOPES (TYIP E fr \ Ul U) ° PROPOSED SAFETY FENCE _ z i ON WESTERN PROPERTY A '� .>�' I Af�:Z \ BOUNDARY TO PROTECT EXISTING SINGLE FAMILY " I � R I A �W �W z HOMES � p1 J 4 i \ I fit\ `c / \ j I J THE FUELING TANK SHALL B CO LETELY SURROUNDED BY A 2 / I - �P, ° ♦, � a . DEEP 2' EARTHEN WIDE BERM WITFV A HEAVY MIL POLYETHYLENE /: 1 I LINING, OR BE PLACED IN AN IMPER IOUS OPEN -TOP DUMPSTER. \ _ _ Clp I L- , \ / j \ / x LU EVENT OF A SPILL. CONTRACTOR SHAL ENSURE VOLUME CAPACITY x Tn Ln O LLL�� nN/ ° THE PROPOSED BERM OR DUMPSTER HALL CONTAIN FUEL IN THE I __ -NI v I •° \ `x L.1_ O o X I A30 .n I IS 10% LARGER THAN THE MAXIM 'VOLUME OF STORED FUEL. x '° O i '� U ° x LOCATION F z O _- x �< FUELING �\ \I , f� ��rY \ % LOCATION OF I a. g : I \ ` - \f\� K 15cy DUMPSTER oJi LOCATION PPOTTIES f----❑ - - _ \ \f\ IP ROPOSED ESC PHASE I DIVERSION_ \ ` -f E --- I INLET SHALL REMAIN FUNCTIONAL AS LON -� , 0 PR ECTION, TYR' / \¢\ ' w -°° /WIRE PROPOSE REMOVAL WITH THE ESC NR SCAO // \I� / ` L O w w COORDINATE THE TIMING OF I \ CKING INDIGO RO -�� \ ° �® w w - w.. W W 1 w ---- _ EXTENSION / W IP a -- ..` // �_ \ff� JOB NO. o " 0 a W W W W W�� 112066 X X R= =X -X- _ .:. _I V V, SCALE � RROROS€D PAVED CONSIRllCIIOrLENIRANCE - - _ .. - - - :. _ - _ - - w7 -� -�I�t �- t t-� �'� 1 (T=.3O ( co 12' 70'101..1x 1 ONSI EWASH-RACK-DOWPt - -- - x _ CONTRACTOR SHALL INSTALL A :PROPOSED -CONTRACTOR-- - - -- - - -- -- '� - GRADIENT FROM. R%W nn+Faarpp� RWD R/W DIVERSION ACROSS THE CRS PARKING & STAGING PROPOSED LIMITS OF DISTURBANCE COINCIDES WITH THE �Y ' -� SHEET NO. N -- - - - Sowce; Adapted from VDOT Standard Sheets Plate 3.75-2 - _ _- CONSTRUCTION ENTRANCE. AREA WITH RAIN GAUGE SILT FENCE AND THE PROPERTY LINE. THE DRAINAGE DIVIDE f1 'f ' �� _� 5 t -- AND SILT FENC€ ARE OFFSET FOR GRAPHICALLY PURPOSES. � �� R�\� Pe LEGEND: o� = S yw y W y WEXISTING POND APPROVED UNDER WPO201700020iQT I �— - J 30 0 15 _ 30_ 60 ° y y \ y '" y. '� +' I _ _ _ _ l� O, jr� \ I TH _ y \ y •, x � r EXISTING STREAM BUFFER IMPACTED WITH THIS PHASE = 0.51 ACRES TOTAL �j y \� .W i y° II I I T�I �_ ® REQ'D MITIGATION = 2X IMPACT (1.02 ACRES) 1 inch - (W FEET)iL. \ �\ y J 9 OSCOTT R. LINSZ I� LiO. No. 035791� MITIGATION AREA PROPOSED WITH THIS PLAN = 1.02 ACRES 5 i - \�//\ �/ L \ \ yl . W � °�0 06/02/20 v/�� " PLANTINGS REQUIRED FOR MITIGATION AREAS: _ _ y \ I \ z y HARDWOOD AND/OR PINE SEEDLINGS = 1.02 X 600 - 612 \ y I I / X X \�\ \\\ z NOTES: -- � S AREA OF 51REAM BUFFE MITIGATION =0.23 AC. 1. SEEDLINGS SHALL BE PLANTED AT 8'x8' ON -CENTER WITH TREE TUBES AND MATS IN ACCORDANCE WITH THE CHESAPEAKE BAY LOCAL ASSISTANCE / \ \ III X DEPARTMENT RIPARIAN BUFFERS MODIFICATION AND MITIGATION GUIDANCE MANUAL Y\ `�' \'x I 2. IT IS A GOAL OF ALBEMARLE COUNTY THAT A MINIMUM OF 85% OF THE TOTAL PROPOSED PRIMITIVE S \ I Il I II x w PLANTINGS REQUIRED FOR BUFFER MITIGATION BE NATIVE PLANS FROM THE — — TRAILWAY, NO GRADING OR _ COUNTY PLANT DATABASE. IMPACTS TO THE WPO BUFFER \ PREA OF STREAM BUFFER- 3. MITIGATION AREAS TO BE INCORPORATED INTO EASEMENTS. wlrH THE TRAIL MIr(GanoN = 0.06 Ac. PLANTING NOTES: 1.02ACTOTAL 1. THE PLANTINGS SHALL FOLLOW THE STREAM BUFFER MITIGATION PLAN. 2. THE FINAL PLANT LAYOUT SHOULD RESEMBLE A RANDOM AND NATURAL PLACEMENT r+ N OF PLANTS RATHER THAN A STANDARD LANDSCAPED APPROACH WITH TREES IN ROWS � m OR ANY OTHER ORDERLY FASHION. A - �\ / o 0 0 < y WPO-STREAM BUFFER \� // - w w w Q v, 3. THE CONTRACTOR SHALL WARRANTY THAT A MINIMUM OF 85% OF ALL PLANTINGS / - X \� -!� - - > SHALL SURVIVE FOR A PERIOD OF ONE YEAR FOLLOWING PLANTING COMPLETION. z - -- X X X r X X ✓�� 0 0 0 4. THE CONTRACTOR SHALL FURNISH NURSERY GROWN PLANTS CONFORMING TO ANSI w Z60.1, WITH HEALTHY ROOT SYSTEMS DEVELOPED BY TRANSPLANTING OR ROOT X;X X O ¢ z z z a PRUNING. TREES AND SHRUBS SHALL BE WELL SHAPED, FULLY BRANCHED, HEALTHY, w VIGOROUS STOCK FREE FROM DISEASE, INSECTS, LARVAE, AND DEFECTS SUCH AS ✓ f X -X-X y X -- -- O g g o KNOTS, SUN SCALD, INJURIES, ABRASIONS AND DISFIGUREMENTS.+� \ X X-y X m o o 0 w w 5. NURSERY GROWN STOCK SHALL COME FROM A LOCAL NURSERY OR BE ADAPTED TO +✓ \ - _X Xy X X � W 5 a a a W a LOCAL GROWING CONDITIONS AND BE GUARANTEED BY THE NURSERY AS SUCH. ��' \\ -� X X X ---- ¢ N N L ° 6. THE CONTRACTOR SHALL CLEAN THE TOPSOIL OF ROOTS, SODS, STONES, CLAY LUMPS, _ Z > y AND OTHER EXTRANEOUS MATERIALS HARMFUL TO PLANT GROWTH. \V\ X X X X I ~ z cc °C w z N 7. THE PLANTS SHALL BE SET AT THE SAME DEPTH THAT THEY WERE GROWN IN AND +� , > a a ° u THE TRUNK SHOULD BE SITUATED NEARLY PLUMB. TREES AND SHRUBS SHALL BE z� �� / - W z z Z w o STAKED, AS NECESSARY, TO PREVENT THEM FROM OVERTURNING. ✓� ✓ - g B. ALL VEGETATION SHALL BE WATERED THE DAY AFTER PLANTING AND THEREAFTER AS✓�✓� AREA of STREAM BUFFER g o > NECESSARY TO ENSURE SURVIVAL UNTIL THE END OF THE GROWING SEASON OF THE 0 i'I� MITIGATION = 0.65 AC. LLA uw Ln w ° FIRST YEAR. �� \ J (1.02 AC TOTAL) > > > o 9. THE GRASS SEED MIX LISTED ABOVE SHALL BE SPREAD THROUGHOUT THE ENTIRE �X �\, w w L STREAM BUFFER MITIGATION AREA, 10. ALL PLANT MATERIAL QUANTITY COUNTS ON THE PLAN ARE THE RESPONSIBILITY OF \\ THE CONTRACTOR. PLANT LIST TOTALS ARE FOR CONVENIENCE ONLY AND SHALL BE \ o VERIFIED PRIOR TO BIDDING. \ / `- 11. NO CHANGES TO PLANT SCHEDULE UNLESS FIRST APPROVED BY THE ALBEMARLE- COUNTY PLANNING DEPARTMENT AND THE LANDSCAPE ARCHITECT. AREA OF DISTURBANCE TO TH , REAM BUFFER REQUIRING - I o \ STREAM = 0.51 AC. G 0 PROPOSED PRIMITIVE \� °�' .? WPO STREAM BUF - R � TRAILWAY NO GRADING OR\ E IMPACTS TO THE WPO BUFFER � ` ., _ �� .ti � .� o o « WITH THE TRAIL ° L \ 00, / AREA OF STREAM BUFFER ' \ / `, �c 1-- �C ��i'� MITIGATION = 0.06 AC. 02 AC TOTAL) > (1. AL d _ IMPACTS TO THE WPO BUFFER (i MH4. _I SSOCI UTILITIES PUBLIC \� 1 1 � \ ATED WITH THE 0 iDE RIBS 0� p I I 1 - - -- ` \. A �` i \ V�� x� �X�X� �X ✓ s CV w ' I ✓V s ' ) c -- Q V / \ i ✓i ° -" ,ICI 1 1 _ i \+✓+ � � � �. I I - 1— - r \� ✓ 1 .a1 N -- - ' A \ \ \')"\ AREA OF STREAM BUFFER S J c MITIGATION = 0.02 AC. W (1.02 AC TOTAL) ` -- W o I• I - V A �\ � Q IMPACTS TOTHEWPO BUFFER J ° / d \ ---ASSOCIATED WITH THE PUBLIC � L UTILITIES S c o 1 - MHS f I a 1 I 1 IMPACTS TO THE WPO BUFFER Tl H o i ^ I / SSOCIATED WITH THE PUBLIC \ / LL! FUTILITIES e IJ-I cn I I \ — I W z \ !\ v +vim ; LLJ J z O I ... d .>.' \ \ \V\ � WPO STREAM BUFFER � J w \ \ N z _ I U- ° w O / — — — _ — — — — — — — — E ❑❑ � \ w I d,d I JOB NO. f N INDIGO ROAD 3 �� / 1 `f\� 112066 40' PUBLIC R/W - - % / SCALE w w— w w w w w w -w �� W W W �� _w ��1 f� 1°�30' � W -' o I - "- - - - - --� - - i "- - -- - ------ - ----- �f r� SHEET NO. --. _. - - — - - - ----- --- -- ; -�- - - - ---- ----- - �. r m -�-�X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X X-R7Y=X- � - �S 34 b�i�',=�`X�1C X iC�C-K R7C X X X X X x-x-X-X-X-X-X-X-X X X X-X ,.�(•�-�X 7C.�C=X�3�XX-X-X-X-X-X-X-X-X X X-X-X K X � � � `�� y —. -. _ _ - . _ - ^tYVYWYYVYYWWWYY'YY'.^!"r ' ••: - � Section 5. Stormwater Management Plan (Provide a reduced 11x17 copy of the latest Stormwater management plan. Do not reference only.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County 11 -POSED 5wM EXISTING POND APPROVED UNDER WP02o1700020 PRE DEVELOPMENSCALE 1 T IM PLAN. / / PROPOSED & -PEN \\\ \\ EXISTING ON APPROVED UNDER WP0201700020 POST -DEVELOPMENT SWM PLAN; L6O�2 FOREST & OPEN �wSCALEZ"=5P'QNII SUBAREA SPACE ESMT, TOTALING 0.25 ac> SPACE ESMT:'� � � '° � I � I I' / TOTALING 0.25 ac. \ IOPROPOSED SWM FOREST & �.' / / PROPOSED SWM FOREST & S BAREA -, �� _ L%J1 OPEN SPACE ESMT. + , - - `. �'SHE0ET4LOW I \,, i A DEFIN SOTHEE VRRM WATER C 14 ac. �( � OPEN SPACE ESMT. + Tc=0.10 hrs. � :.� � _ � � �LIMITS OF DISTURBANCEDEFINES THE VRRM WATER � �. la,QUALITY BOUNDARY ' �' QUALITY BOUNDARY \ _�1 SUBAREA �I // .�� ♦♦ \ - - - LIMITS OF WPO 1 /� 0SHE.10 ac. C. ---� ---__�'- - 1 ----- �. / ♦ - \ _ .STREAM 1 / i CN 72.1 _ ♦ .,� - _. ---\- _ _ BUFFER / 54-- \ - / Tc=0.10 hrs. -�. . ♦ -.. 'SHEET FLOW E' f 1 0.16 o ♦ 0 -_`� SUBAREAA y �� 0.10 hrs. _ iFj , ♦♦ � � �� e4-. � � �®i`.'z J- 'SHEET FLOW F\' ♦ - _ j e 0.11 ac. _ _ w w LU _ `�� \ �' - ec2oo V A w eC A - cN=711 \ \ Q Q a o A ♦♦ \ �6T OF OLF w� b ,E / =0.10 hrs. \V A\ to m a _ ..`.. / 4p010 ft sF ® _ I \ \ N, \ •-� ¢ w w w 0 x., ♦ / A ELEV.-18t & \. \ a < z z Lu O ■ -- ♦♦ / - 4 \ V LIMITS OF g / / DISTURBANCE � U Ln D O O Ln . - ♦ \ - . \ \\ \.\ WITHIN THE Lu Xn rz rz rL.. u1 •_ •'♦ \ 1-i• \ / /„ • , / of • " ` �. \ LIMITSOFPO\\ \\ ASSOCIATED STREAM BUFFER \ O F D > UO UO Q - PUBLIC UTILITIESH �� ♦ I - / ` ./ / BUFFER \ \ Xn Z of of uj Lu LuCZLu ,7 ♦ _-- „� x z z \ > Ce a a Xn / ♦♦ t oow - ♦ _ �- 1oo'�F� LF w ♦ \ wLU Ul - TS�OF OF w �' ♦ � � , � I A � �� \ \ _ _--- o LEv� za' ♦ - - I _ ♦♦ - ROPOSED LIMITS P I 1 . OF DISTURBANCE, % I' -� \ \ OF DISTURBANCE, TYP.\ I ♦ J �... I _ TYP. S LOCATION ATIONILITY PLANE 1 - �� : -1� -�. ,� _ �� A' A ` _ I _ � '.:•�. \ � • � MISTS OF\ ' STREAM SUFFER � i / DISTUR ANCE\ WITHIN o rn o No No m STREAM BUFF R w - ASSOCIATED WW H Q N r,.t r4 o E H- � � o M N 1_ N SUBAREA O ll O 1 _ CN-.82:4 \ / S, PUBLIC UTTLITTE V .� 0 0 °-` 3.33 ac. : \ L.:, H - ` Tc=0.16 hr \ c 3 (. ' Tc=0.24 hrs. ) _ CN-55.0 a � _ � - � \ LIMITS OFWPO � a � � STREAM - %- ). � i I � ,. BUFFER � I t ti r i - -, 100 OF CUP \ i A ELEV.=4"& I 1-25' OF OF w/ s� A ELEV.=9 _ TTTaaa - - .. • .. I Lr - 'yp II SUBAREA B , 0.69 ac.r Tc= 0.26 hrs. ®I XI ROAD _ - - �� ROAD - ICRIW \. 'V IC RIW _ _ - w - _ 7-W -VV W r NOTE, THE MAXIMUM PROPOSED SLOPE IS 2I FOR -THE SITE ANDTHE MAXIMUM PROPOSED SLOPE FOR THE SWM FACILITY IS Sri 665 665 WATERSHED SUMMARY \ PROPOSED 048" CL. III RCP STAND IPE TOPPED GENERAL SWM NOTES: Pre -Development \ w/STEEL WEIR PLATE PROVIDING 0�0" OPENING 1. STATE APPROVED TRASH RACKS AND ORIFICES SHALL BE INSTALLED ON ALL ORIFICE OPENINGS. SEE EXISTING AND TRASH RACK SHALL SERVE AS THE RISER DETAILS ON THIS SHEET AND THE FOLLOWING SHEET, OR EQUIVALENT, FOR INSTALLATION. 1-year 2-year Flow, 10-year Flow, GRADE STRUCTURE, SEE TRASH RACK DETAIL ON THIS 2. CONCRETE FOUNDATIONS SHALL BE INSTALLED ON ALL RISER STRUCTURES MEETING MINIMUM VESCH 1 CN Area, ac. Total Phosphorous Removal Required for the Development 5.32 Ibs/yr & 4 Flow, Cf5 CfS Cf5 SHEET. RISER STRUCTURE SHALL HAVE A RIM SPECIFICATIONS. Phosphorous Removal Achieved from the BMP of the SWM Forest &Open Space Easements 0.08 Ibs/yr - PROPOSEDio'WIDEGRADED ELEV.=65 )AWIT FOUR FFLOWORIFICE 3. CONTRACTOR SHALL HIRE ATHIRD PARTY GEOTECHNICAL ENGINEER TO ENSURE THE EMBANKMENTS ARE rpiA AA 55.0 3.33 0.36 1.03 4.32 O -I GRASS -LINED SAFETY BENCH WITH _ 660 Remaining Phosphorous Removal Required to be Purchased 5.24 Ibs/yr LOW ORIFICES STRUCTURALLY SOUND. THE EMBANKMENTS SHALL HAVE A COMPACTED CLAY CORE WITH A CUTOFF A 2°h MAXIMUM CROSS SLOPE. (INV. 652.58). TRENCH & BE IN ACCORDANCE WITH THE DETAILS SHOWN IN THIS PLAN. BERMS AND SPILLWAYS SHALL BE B 55.0 0.69 0.07 0.21 0.90 SAFETYBENCHTOII LOCATEDAT STABILIZED WITH EC-3 MATTING AND THE REMAINING DISTURBED EMBANKMENT SLOPES SHALL BE 55.0 4.02 0.43 1.24 5.21 THE TOP OF THE FACILITY. lo' WIDE TOP OF DAM STABILIZED WITH EC-2 MATTING. ALL BERM FILL MATERIAL SHALL CONSIST OF ML, CL, SC OR GC SOILS & BE ELEVATION=656' FREE OF WOOD, ROOTS, ROCKS OR ANY OTHER NON COMPACTING SOIL. COMPACTED FILL SHALL BE PROCTOR MAXIMUM DRY DENSITY ASTM D698 AND HAVE A MINIMUM OF 95%OF MAXIMUM DRY DENSITY r c PROPOSED PROPOSED 65' WIDE GRASS LINED AND 2%OF OPTIMUM MOISTURE CONTENT. ALL EXISTING AND PROPOSED FILL MATERIAL AND PROPOSED Post-Development-1" Low -Flow Orifice G .yS GRADE EMERGENCY SPILLWAY w/ :1 SIDE 655 CONSTRUCTION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE 100-yr PEAK WSE=654.99 10-yr PEAK WSE=654.68 i.. 650 SLOPES&CREST ELEV.=6 I'4.75' CONSTRUCTION OFTHE EMBANKMENTS AND FILL AREAS, AND PRESENT DURING THE CORE SAMPLING. T A ST 4. THE DOWNSTREAM EMBANKMENT SIDE SLOPES OF ALL PERMANENT FACILITIES SHALL HAVE A MAXIMUM 3:1 DAA & B CN Area, ac. 1-year 2-year Flow, 10-year Flow, 1' of Freeboard 84.2 4.02 0.06 0.81 5.20 Yes CON RACTOR SH LL IN .ALL SLOPE. EMBANKMENT IN ACCORDANCE w/ THE 5. UNDERDRAIN SYSTEM TO SLOW THE INFLOW OF WATER TO THE RISER, AND TO PROVIDE FURTHER DESIGNS SHOWN ON THESE PLANS. SEDIMENT FILTRATION. IN ADDITION TO THE LOW -FLOW ORIFICE TRASH RACK, THE UNDERDRAIN SYSTEM SHALL PROVIDE A SECOND LAYER OF PROTECTION TO REDUCE THE RISK OF CLOGGING BY INFILTRATING PROPOSED BASIN'S FLOOR SHALL BE SLOPED TO DRAIN MINOR STORM EVENTS AND PROTECTING THE LOW -FLOW ORIFICE. TO THE RISER. A PERFORATED 06" SCHEDULE 40 PVC Impervious Area Summary- Water Quality Impervious Area Summary- Water Quantity UNDERDRAIN SHALL BE INSTALLED AT THE BASIN'S LOW __� POINTS/ CHANNEL AND SHALL BE CONNECTED TO THE (Defined by Limits of Disturbance & SWM Preservation Esmt.) (Defined by DAA & B) RISER. THE PERFORATED PIPE SHALL BE CENTERED IN A Proposed Roadway 34,600 sf Proposed Onsite Roadway 34,600 sf 3' WIDE, 18" DEEP PEA GRAVELTRENCH WITH FILTER. 2-yr PEAK WSE=652.89 l FABRIC AT THE SOIL& STONE INTERFACE. Proposed Sidewalk 9,425 sf Offslte Proposed Roadway 1,020 sf 1-yr PEAK WSE=652.54 ( °' PROPOSED FLAT VDOT CLASS Al COARSE AGGREGATE OUTLET PROPOSED 65'WIDE GRASS LINED Proposed Driveways 16,225 sf Proposed Sidewalk 9,425 sf 6 4 5 PROTECTION w/ CL II FILTER FABRIC UNDERLAYMENT KEYED EMERGENCY SPILLWAY w/ 4:1 SIDE PROPOSED CLEANOUT INTO THE EXISTING GROUND A MINIMUM OF 9" ATTHE ENDS & Proposed Residences 58,550 sf Proposed Driveways 16,225 sf w/ SCREW CAR IN ALONG THE PERIMETER. EDGES OF FILTER FABRIC SHALL SLOPES & CREST ELEV.=654-75� OVERLAP A.MINIMUM OF 12".OUTLET PROTECTION TO EXTEND Proposed Emergency Access 9550 Proposed Residences 48,520 sf CLOSED POSITION TOSTREAAMNZ. CONTRACTOR SHALL NOT DISTURB THE 660 660 128,350 sf 109,790 sf DURING NORMAL OP RATION�j5II EXISTING STREAM. (L=60'±, W1=3.75% W2=22', D=18" MIN.) Oa-� TO PREVENTFLOIIfA IONTHE RISERIBASE Q10 ESC=10.5 cfs(highest flow),W1=3xD=3x1.25'=3.75', AND BARREL CONNECTION SHALL BE FIRMLY W2=D+0.4xL=1.25'+0.4-21=9.65' MIN., La=21' MIN. EMBEDDED 6" INTO AN A" THICK \ REINFORCED CONCRETE FOUNDATION THAT IS 7.5'x7.5', AND BURIED BELOW GROUND. PROPOSED 125.20` OF Oi5" OIL. III RCP AT 4.790/0 WITH VDOT STD. EW-1PC 635 (INV IN=644.00; INV OUT= 38.00') 63 632 63 U pJJUN cl�LO CO 7 WW rQ � C7 U0 C6 U0 Cd ; N rp � W0XO ILL � c c0 CDc0 Co 3 0+50 1+00 1+50 2+00 2+50 2+88 SWM FACILITY SECTION RISER STANDPIPE- STEEL WEIR PLATE DETAIL PROPOSED 048" CL. III RCP STANDPIPE TOPPED w/STEEL WEIR PLATE PROVIDING 0io" OPENING, PROTECTED w/ TRASH RACK 1 0" SCALE: STORMWATER MANAGEMENT NARRATIVE: OVERVIEW: THIS PROJECT COMPLIES WITH PART IIB SWM REQUIREMENTS. THREE BEST MANAGEMENT PRACTICES ARE PROPOSED TO OFFSET THE IMPACTS FROM THE PROPOSED DEVELOPMENT. WATER QUALITY SUMMARY THE STORMWATER QUALITY REQUIREMENTS FOR THIS DEVELOPMENT ARE MET, IN PART, THROUGH THE USE OF PRESERVING OPEN SPACES. THIS PLAN PROPOSES TO PRESERVE 0.25 ACRES OF UNDISTRIBUTED LAND WITHIN THE PROPERTY LIMITS. ADDITIONALLY, NUTRIENT CREDITS WILL BE PURCHASED, TOTALING 5.24 Ibs/yr. THE VRRM SPREADSHEET'S BOUNDARY IS DEFINED BY THE LIMITS OF DISTURBANCE + THE PRESERVED OPEN SPACE EASEMENT. PLEASE SEE THE'SWM FOREST & OPEN SPACE EASEMENT NOTES' BELOW AND THE ACCOMPANYING 'STORMWATER MANAGEMENT CALCULATIONS PACKET' FOR ADDITIONAL DETAILS. WATER QUANTITY SUMMARY A DETENTION BASIN IS PROPOSED TO ATTENUATE FLOWS FROM THE PROPOSED DEVELOPMENT, BEFORE IT IS RELEASED INTO THE DOWNSTREAM CHANNEL. PLEASE SEETHE ATTACHED 'STORMWATER MANAGEMENT CALCULATIONS PACKET' FOR ADDITIONAL DETAILS. SWM FOREST & OPEN SPACE EASEMENT NOTES: 48 0+50 0+90 1. NUTRIENT CREDITS WILL BE REQUIRED TO BE PURCHASED FOR THIS DEVELOPMENT PRIOR TO THE ISSUANCE =20' OF A LAND DISTURBANCE. 'SWM' IS AN ACRONYM FOR STORMWATER. MANAGEMENT. 2. THE SWM FOREST AND OPEN SPACE EASEMENT IS SUBJECT TO THE GUIDANCE SET FORTH BY DEQ IN THE VIRGINIA STORMWATER MANAGEMENT PROGRAM. THE AREAS WILL REMAIN UNDISTURBED IN A NATURAL, VEGETATED STATE EXCEPT FOR ACTIVITIES AS APPROVED BY THE LOCAL PROGRAM AUTHORITY, SUCH AS FOREST MANAGEMENT, CONTROL OF INVASIVE SPECIES, REPLANTING AND REVEGETATING, PASSIVE SWM FACILITY SPILLWAY REECREATION (e.g. TRAILS), AND LIIMITED BUSH HOGGING TO MAINTAIN DESIRED VEGETATIVE COMMUNITY (BUT NO MORE THAN FOUR TIMES A YEAR). OPOSED GRADE 655 65' 65' XISTING GRADE 650 \0 J J W W O Xp r- LO CD O c0 Un U0 CID Xfl 0 Xo W ILL StormI ROUND SERIES TRASH RACK CONCRETE MANHOLE STANDARD 60 INCH RACK SHOWN DIMENSIONS IN INCHES (OR EQUIVALENT) . emucruwur Cw FUBrIC TM.M PLAN SIDE VIEW ISOMETRIC StormRax7m Round Series for Concrete Manhole Pan Mo. Dim A oln 6 Ella L Min ID Mtn 00 W24 17Y4 14% 28 24 30 Ai9b 21 14 36 43 &S•fi0 27% isV4 663E 60 70 Plastic Solutions, kv- M61011191: PO 1114386. w1 hn=. VA22E06 US AkU" Rd. uMchesW VA 22603 877)877-57270ow PFAI ,540) 721-2219 ha hnp//WWv.'•1h5ft-S0bd 'fmlr CONCRETE STRUCTURE DIMEN610N8 INSIDE STRUCTURE DIMEN810N OUTSIDE STRUCTURE DIMENSION AVAILABLE OPTIONS CROSS BRACING FOR OVERHANG HOP@ ANTI -VORTEX PLATE (REDID FOR ESC) DATE: PAWN Or AWDDY: DETAIL: r > Z� ti m 0 o 3 N 0 c z o Q a ' J N J W N C Q °' w o ; o Q L U I 06 o J_ z a LLJ J 7 r O T L ww L V LLI o r`.1 J7 a W U zQ� Y z� o W c Q > f- Lf) O � a Ul z w ZW Lu J�z 5 w �1 Z z o 0 H � U aaJW ® lIi J On/ U o a < > � V � x 0 C:) ON L 0 U w w a En JOB NO. 112066 SCALE 1 =5' (v) 1 "=50' H SHEET NO. 6 DETENTION BASIN CONSTRUCTION NOTES: FACILITY PLANTING SPECIFICATIONS: 1. THE DETENTION BASIN SHALL HAVE TURF GROUND COVER, SUCH AS GRASS, MULCH OR SOME OTHER FORM OF A VEGETATIVE GROUNDCOVER. LANDSCAPING BEYOND THIS IS OPTIONAL AND IS NOT REQUIRED. 2. THE PROPOSED INTERIOR SIDE SLOPES OF THE BASIN SHALL BE A MAXIMUM OF 2:1 TO REDUCE THE RISK OF EROSION. THE PROPOSED FLOOR SLOPES SHALL BE GRADED TO PROVIDE POSITIVE DRAINAGE AT ALL TIMES TO THE RISER STRUCTURE. 3. WOODY VEGETATION SHALL NOT BE PLANTED OR ALLOWED TO GROW WITHIN 15 FEET OF THE TOE OF THE EMBANKMENT NOR WITHIN 25 FEET OF THE PRINCIPAL SPILLWAY STRUCTURE. 4. THE SOILS IN THE STORMWATER BUFFER AREA ARE OFTEN SEVERELY COMPACTED DURING THE CONSTRUCTION PROCESS, TO ENSURE STABILITY THE DENSITY OF THESE COMPACTED SOILS CAN BE SO GREAT THAT IT EFFECTIVELY PREVENTS ROOT PENETRATION AND, THEREFORE, MAY LEAD TO PREMATURE MORTALITY OR LOSS OF VIGOR. AS A RULE OF THUMB, PLANTING HOLES SHOULD BE THREE TIMES DEEPER AND WIDER THAN THE DIAMETER OF THE ROOTBALL FOR BALL -AND -BURLAP STOCK, AND FIVE TIMES DEEPER AND WIDER FOR CONTAINER -GROWN STOCK. 5. AVOID SPECIES THAT REQUIRE FULL SHADE, OR ARE PRONE TO WIND DAMAGE. EXTRA MULCHING AROUND THE BASE OF TREES AND SHRUBS IS STRONGLY RECOMMENDED AS A MEANS OF CONSERVING MOISTURE AND SUPPRESSING WEEDS. CONTRACTOR REQUMEMENTS: 1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR LAYOUT OF ALL WORK COVERED UNDER THESE PLANS. 2. LANDSCAPE CONTRACTOR SHALL REFER TO THE STANDARDIZED LANDSCAPE SPECIFICATIONS FOR THE STATE OF VIRGINIA FOR ADDITIONAL INFORMATION. THE CONTRACTOR SHALL ABIDE BY ITS CONTENTS; HOWEVER ANY NOTES OR SPECIFICATIONS ON THE PLANS SHALL SUPERSEDE THOSE OUTLINED IN THE SPECIFICATIONS MANUAL (COPIES ARE AVAILABLE FOR A FEE FROM THE VIRGINIA CHAPTER OF THE AMERICAN SOCIETY OF LANDSCAPE ARCHITECTS, VIRGINIA NURSERYMEN'S ASSOCIATION, INC. AND THE VIRGINIA SOCIETY OF LANDSCAPE DESIGNERS). ALL DISCREPANCIES SHALL BE BROUGHT TO THE ATTENTION OF COLLINS ENGINEERING PRIOR TO THE CORRESPONDING CONSTRUCTION ACTIVITY. 3. ALL PLANT MATERIAL SHALL MEETTHE MINIMUM SPECIFICATIONS AND STANDARDS DESCRIBED IN THE CURRENT ISSUE OF THE AMERICAN STANDARD FOR NURSERY STOCK, PUBLISHED BY THE AMERICAN ASSOCIATION OF NURSERYMEN, 1250 STREET, NW, SUITE 500, WASHINGTON, DC 20005. 4. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS IN THE FIELD AND NOTIFY THE DESIGNER OF ANY VARIANCE FROM THE PLAN. 5. THE LANDSCAPE CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE LOCATION OF ANY ONSITE UTILITIES (CALL MISS UTILITY 1-800-552-7001 BEFORE ANY EXCAVATION). 6. REFER TO THE APPROVED FINAL SITE PLANS FOR ANY DETAILED SITE INFORMATION. 7. ALL WORK SHALL BE COORDINATED WITH OTHER PARTIES. 8. PLANTS WILL BE PREPARED FOR SHIPMENT IN A MANNER THAT WILL NOT CAUSE DAMAGE TO THE BARK, BUDS, BRANCHES, STEMS, OR OVERALL SHAPE OF THE STOCK. CONTAINER GROWN PLANTS WILL BE TRANSPORTED IN THE CONTAINERS IN WHICH THEY HAVE GROWN. 9. ALL PLANT MATERIAL, UNLESS OTHERWISE SPECIFIED, SHALL BE UNIFORMLY BRANCHED AND HAVE A VIGOROUS ROOT SYSTEM. PLANT MATERIAL SHALL BE HEALTHY VIGOROUS AND FREE FROM DEFECTS DECAY DISEASES INSECT PEST EGGS AND ALL FORMS OF INFESTATION. ALL PLANT MATERIAL SHALL BE FRESH FREE FROM TRANSPLANT SHOCK OR VISIBLE WILT. PLANTS DEEMED UNHEALTHY WILL BE REJECTED. 10. ALL CONTAINER STOCK SHALL HAVE BEEN PROPAGATED IN A CONTAINER LONG ENOUGH FOR THE ROOT SYSTEM TO HAVE DEVELOPED SUFFICIENTLY TO HOLD ITS SOIL. CONTAINER STOCK WITH POORLY DEVELOPED ROOT SYSTEMS WILL NOT BE ACCEPTED. 11. PLANTS NOT INSTALLED ON THE DAY OF ARRIVAL ON SITE SHALL BE STORED AND PROTECTED BY THE CONTAINER. OUTSIDE STORAGE AREAS WILL BE SHADED AND PROTECTED FROM THE WIND AND SUN. PLANTS STORED ON SITE SHALL BE PROTECTED FROM ANY DRYING AT ALL TIMES BY COVERING THE BALLS OR ROOTS WITH MOIST SAWDUST WET BURLAP WOOD CHIPS SHREDDED BARK PEAT MOSS OR OTHER SIMILAR MULCHING MATERIAL. 12. THE OWNER RESERVES THE RIGHT TO SUBSTITUTE PLANT MATERIAL TYPE, SIZE AND/OR QUANTITY. ANY SUBSTITUTIONS MUST BE APPROVED BY THE INSPECTOR INITIALLY, AND THEN THE DESIGNER. 13. MINOR FIELD ADJUSTMENTS MAYBE NECESSARY DUE TO SITE CONDITIONS EX: ROOTBALL AND UTILITY CONFLICT). MAJOR ADJUSTMENTS MUST BE APPROVED BY THE DESIGNER. 14. NO PLANTING SHALL OCCUR WHEN THE SOIL IS FROZEN. 15. PLANT MATERIAL SHALL BE PLACED IN EXISTING SOIL WITH EACH PLANTING PIT EXCAVATED TO A SIZE SUFFICIENT TO CONTAIN THE ENTIRE ROOT BALL OR ROOT MASS, WITHOUT CRAMPING ROOTSTOCK. 16. THE CONTRACTOR SHALL MAINTAIN A ONE (1) CALENDAR YEAR 90%CARE AND REPLACEMENT WARRANTY FOR ALL PLANTINGS. THE PERIOD OF CARE AND REPLACEMENT SHALL BEGIN AFTER INSPECTION AND APPROVAL OF THE COMPLETE INSTALLATION OF ALL PLANTS AND CONTINUE FOR ONE CALENDAR YEAR. 17. THE CONTRACTOR IS RESPONSIBLE FOR REMOVAL AND DISPOSAL OF TRASH AND DEBRIS WITHIN THE LIMITS OF THE PLANTING ON A DAILY BASIS. 18. THE CONTRACTOR WILL NOT BE RESPONSIBLE FOR PLANT MATERIAL THAT HAS BEEN DAMAGED BY VANDALISM, FIRE, OR OTHER ACTIVITIES BEYOND THE CONTRACTOR's CONTROL. FACILITY CONSTRUCTION 1. THE DETENTION BASIN MAY SERVE AS A SEDIMENT BASIN AND/OR TRAP DURING PROJECT CONSTRUCTION. IF THIS IS DONE THE VOLUME SHALL BE BASED ON THE MORE STRINGENT SIZING RULE (EROSION AND SEDIMENT CONTROL REQUIREMENTS VS. STORMWATER TREATMENT REQUIREMENTS). INSTALLATION OF THE PERMANENT RISER SHALL BE INITIATED DURING THE CONSTRUCTION PHASE, AND DESIGN ELEVATIONS SHALL BE SET WITH FINAL CLEANOUT OF THE SEDIMENT BASIN AND CONVERSION TO THE POST -CONSTRUCTION POND IN MIND. APPROPRIATE PROCEDURES SHALL BE IMPLEMENTED TO PREVENT DISCHARGE OF TURBULENT WATERS WHEN THE BASIN IS BEING CONVERTED TO AN DETENTION BASIN. 2. THE DETENTION BASIN SHALL ONLY BE CONSTRUCTED AFTER THE CONTRIBUTING DRAINAGE AREA TO THE POND IS COMPLETELY STABILIZED. IF THE PROPOSED POND SITE WILL BE USED AS A SEDIMENT TRAP OR BASIN DURING THE CONSTRUCTION PHASE THEN. THE FACILITY WILL BE DEWATERED DREDGED AND RE -GRADED TO DESIGN DIMENSIONS AFTER THE ORIGINAL SITE CONSTRUCTION IS COMPLETE.MODIFICATIONS SHALL BE MADE TO THE RISER ORIFICES AND BARRELS AS REQUIRED SO THAT THEY ARE CONSISTENT WITH THE FINAL CONSTRUCTION SPECIFICATIONS. 3. THE CONTRACTOR SHALL ASSEMBLE CONSTRUCTION MATERIALS ON -SITE, MAKING SURE THEY MEET DESIGN SPECIFICATIONS AND ARE PREPARED AT STAGING AREAS WHEN POSSIBLE. 4. THE CONTRACTOR SHALL CLEAR AND STRIP THE PROJECT AREA IF REQUIRED TO THE DESIRED SUB -GRADE. 5. INSTALL E&S CONTROLS PRIOR TO CONSTRUCTION OF THE BASIN, INCLUDING TEMPORARY DE -WATERING DEVICES AND STORMWATER DIVERSION PRACTICES. ALLAREAS SURROUNDING THE BASIN THAT ARE GRADED OR DENUDED DURING CONSTRUCTION SHALL BE PLANTED WITH TURF GRASS, NATIVE PLANTINGS, OR OTHER APPROVED METHODS OF SOIL STABILIZATION. 6. CONTRACTOR SHALL EXCAVATE THE CORE TRENCH AND INSTALLTHE SPILLWAY PIPE DURING THE ESC PHASE. 7. CONTRACTOR SHALL ALSO INSTALL THE RISER, OUTFLOW STRUCTURE AND/OR THE BARREL(s) WITH PERMANENT COLLARS DURING THE ESC PHASE TO ENSURE THE TOP INVERT OFTHE OVERFLOW WEIR IS CONSTRUCTED LEVEL AT THE DESIGN ELEVATION. 8. THE CONTRACTOR SHALL CONSTRUCT THE EMBANKMENT AND ANY INTERNAL BERMS IN 8-TO 12-INCH LIFTS, COMPACTION SHALL BE COMPLETED IN LIFTS WITH APPROPRIATE EQUIPMENT. THE CONTRACTOR SHALLALSO ADHERE TO THE CLAY LINER SPECIFICATIONS OUTLINED IN TABLE 14.4 BELOW: Table 14.4, Clay Liner Specifications Property Test Method Unit ciflcdion Permeability ASTM 0-2434 cmisec 1 X is Plasticity Index of Clay ASTM D 423/424 % Not less than 15 Liquid Limit of Ga ASTM D-2216 % Not less than 30 Clay Particles Passing ASTM D-422 % Not less than 30 Clay Cc m coon ASTM P2216 % 95% of standard iomtor density Source: Virginia Stormwater Management Handbook (1999) tS y / �� PROPOSED zy SEATjALL PROPOSED zo' WIDE GRADED GRASS -LINED ACCESS ENCOMPASSED IN PROPOSED CLEANOU w VARIABLE WIDTH SWIM FACILITY SCREW CAP IN CLO ED EASEMENT. ACCESS TO HAVE AMAX. 20% POSITION DURING LONGITUDINALSL0PE&2%CROSSSI RMALOPERA.'fIONS � \ / \ SEE SHEET:6 FOR SCALED PROFILES.OFT \ v v ALIGNMENT (Ty) PROPOSED VARIABLE r\ / \ \ � W1OTH-SWM FACILITY/ EA57NT, TYP. \ / s \ \ i I� - I I I CONTRACTOR SHALL INSTALL'. PEDESTRIAN HANDRAILS ON THE l \ J RETAINING WALL, MEETING MINIMUM I / I BUILDING CODE REQUIREMENTS, ': I ( WHERE WALL HEIGHTS EXCEED 30". PROPOSED z " 4 SEATWALL ` I I I1 I II I I n .a \ I /JJ11 II I I \ I I I 9. UPON COMPLETION OF THE EMBANKMENT GRADING, THE CONTRACTOR SHALL EXCAVATE/GRADE UNTIL THE APPROPRIATE ELEVATION AND DESIRED CONTOURS ARE ACHIEVED FOR THE BOTTOM AND SIDE SLOPES OF THE BASIN. 10. CONTRACTOR SHALL THEN CONSTRUCT THE EMERGENCY SPILLWAY IN CUT OR STRUCTURALLY STABILIZED SOILS. 11. THE CONTRACTOR SHALL THEN FINISH CONSTRUCTION OF ALL OUTLET STRUCTURES, INCLUDING DOWNSTREAM RIP -RAP APRON PROTECTION. 12. THE CONTRACTOR SHALL NEXT STABILIZE EXPOSED SOILS BY HYDROSEEDING OR SEEDING OVER STRAW. 13. THE CONTRACTOR SHALL THEN INSTALL THE APPROPRIATE BASIN LANDSCAPING IN ACCORDANCE WITH THE APPROVED PLANS. FACILITY MAINTENANCE; MAINTENANCE OF THE DETENTION BASIN IS DRIVEN BY ANNUAL INSPECTIONS THAT EVALUATE THE CONDITION AND PERFORMANCE OF THE FACILITIES. DURING THESE INSPECTIONS THE FOLLOWING TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST YEAR FOLLOWING INSTALLATION, AND THE OWNER THEREAFTER: 1. MEASURE SEDIMENT ACCUMULATION LEVELS IN THE BASIN. 2. MONITOR THE GROWTH OF THE GROUNDCOVER AND ANY TREES AND SHRUBS PLANTED, AS APPLICABLE. RECORD THE SPECIES AND THEIR APPROXIMATE COVERAGE, AND NOTE THE PRESENCE OF ANY INVASIVE PLANT SPECIES, AS APPLICABLE. 3. INSPECT THE CONDITION OF STORMWATER INLETS TO THE BASIN FOR MATERIAL DAMAGE, EROSION OR UNDERCUTTING. 4. INSPECT THE BANKS OF UPSTREAM AND DOWNSTREAM CHANNELS FOR EVIDENCE OF SLOUGHING, ANIMAL BURROWS, BOGGY AREAS, WOODY GROWTH, OR GULLY EROSION THAT MAY UNDERMINE EMBANKMENT INTEGRITY. 5. INSPECT BASIN OUTFALL CHANNEL FOR EROSION, UNDERCUTTING, RIP -RAP DISPLACEMENT, WOODY GROWTH, etc. 5. INSPECT CONDITION OF PRINCIPAL SPILLWAY AND RISER FOR EVIDENCE OF SPALLING, JOINT FAILURE, LEAKAGE, CORROSION OR OTHER FAILURES. 7. INSPECT CONDITION OF ALL TRASH RACKS, REVERSE SLOPED PIPES OR FLASHBOARD RISERS FOR EVIDENCE OF CLOGGING, LEAKAGE, DEBRIS ACCUMULATION COUNTY OF ALBEMARLE 8. S. OR OTHINSPECT MAINTENANCE INSPECT MAINTENANCE ACCESS TO ENSURE IT IS FREE OF WOODY VEGETATION, AND CHECK TO SEE WHETHER VALVES, MANHOLES AND LOCKS CAN BE A Department of Community Development �, , OPENED AND OPERATED. `'r„u,,,N 9. INSPECT INTERNAL AND EXTERNAL SIDE SLOPES OF THE BASIN FOR EVIDENCE OF SPARSE VEGETATIVE COVER, EROSION, OR SLUMPING. 1. Construction Record Drawings (As -built) for VSW 10. OWNER OR CONTRACTOR SHALL MAKE NEEDED REPAIRS IMMEDIATELY. FACILITY INSPECTION: The following is a list of information required on construction record drawings for MULTIPLE INSPECTIONS ARE CRITICAL TO ENSURE THE BASIN(s) ARE PROPERLY CONSTRUCTED. BECAUSE THE TIMING OFTHE INSTALLATION IS DICTATED BY THE stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the CONTRACTOR, THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER AND INSPECTOR PRIOR TO INSTALLATION. MULTIPLE SITE VISITS AND INSPECTIONS ARE REQUIRED TO BE SCHEDULED BY THE CONTRACTOR WITH THE ENGINEER AND INSPECTOR DURING THE FOLLOWING STAGES OF THE DETENTION construction record drawing be prepared by someone other than the designer. Please do not BASIN's CONSTRUCTION PROCESS: provide design drawings as construction record drawings. 1. PRE -CONSTRUCTION MEETING 2. INITIALSITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS) A. A signed and dated professional seal of the preparing engineer or surveyor. 3. EXCAVATION/GRADING (e.g., INTERIM/FINAL ELEVATIONS) B. The name and address of the firm and individual preparing the drawings on the title sheet. 4. DETENTION BASIN INSTALLATION e.. INTERIM AND FINAL ELEVATIONS ( g • ) C. The constructed location of all items associated with each facility, and the inspection records to verify 5. INSTALLATION OF THE EMBANKMENT, THE RISER/PRIMARY SPILLWAY, AND THE OUTLET STRUCTURE(s). proper dimensions, materials and installation. The items include, but are not limited to the following: 6. PLANTING PHASE (WITH AN EXPERIENCED LANDSCAPE ARCHITECT PRESENT/DIRECTING IF APPLICABLE) 1. Inspection Records and photographs for pipe trenches and bedding, including underdrains. 7. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE) 2. Video Pipe Inspection for any pipes which are not accessible or viewable. 3. Updated Location with geo-coordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities. 5. Current physical and topographic survey for all earthen structures. Ponds should include a survey of the pond bottom. Surveys should verify pond volumes are per design. Corrections may be required EMBANKMENT NOTES: for alterations from the design. AFTER AN INVESTIGATION OF THE SITE's SOILS SITE VISITS AN ANALYSIS OF THE SURVEYED TOPOGRAPHY AND AN 6. Plants, location and type. EXAMINATION OF VA DEQ APPENDIX A: EARTHEN EMBANKMENT, THE APPLICANT HAS PROVIDED A COMPREHENSIVE EMBANKMENT DESIGN THAT DOES NOT NEED A GEOTECHNICAL STUDY ATTHIS TIME. SUCH IS THE CASE DUE TO THE 7. Plans and profiles for all culverts, Pipes, Risers, Weirs and Drainage Structures - Display the PRECAUTIONARY EMBANKMENT DESIGNS PROPOSED. A SUMMARY OF THE EMBANKMENT DESIGN REQUIREMENTS ARE LISTED BELOW, MANDATING THE CONTRACTOR MEET THESE REQUIREMENTS AT A MINIMUM. installed //��,,e of drainage structures, culvert/pipe 1 size, We1iS, materials, inlets or end treatment s •JY O Ppe �)+ inlet and outlet protection, alignment and invert elevations compared to design. THE EMBANKMENTS SHALL HAVE . COMPARED CLAY CORE WITH E CUTOFFTRENCHCH & BE IN ACCORDANCE WITH THE DETAILS SHOWN ON IN THIS PLAN. BERMS AND SPILLWAYS SHALL BE STABILIZED WITH EC-3 MATTING&THE 8. Computations: For significant deviations from design, provide sealed computations verifying that P 6""' gn+P P nfying REMAINING DISTURBED SLOPES SHALL BE STABILIZED WITH EC-2 MATTING. ALL BERM FILL MATERIAL SHALL CONSIST the as -built condition is equivalent or better than design. OF MIL, CL SC OR GC SOILS & BE FREE OF WOOD ROOTS ROCKS OR ANY OTHER NON COMPACTING SOIL. COMPACTED 9. Ditch Lines - Display the constructed location of all ditch lines and channels, including typical FILL SHALL BE PROCTOR MAXIMUM DRY DENSITY ASTM D698 AND HAVE A MINIMUM OF 9S%OF MAXIMUM DRY DENSITY AND 2% OF OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL AND CONSTRUCTION SHALL BE APPROVED BY sections and linings. AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS. 10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage must be within platted easements. Provide copies of recorded documents. 11. Guardrail, fences or other safety provisions - Display the constructed location of all safety provisions; fences, guardrail, including the type, length and applied end treatments, compared to design. 12. Material layers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to General Construction notes for Stormwater Management Plans 1. All dams and constructed fill to be within 95% of material types and depths. Include inspection reports, boring or test pit reports and materials maximum dry density and 2% of optimum moisture certifications. Biofilter media must be an approved state mix. content. All fill material to be approved by a geotechnical 13. Access roads- show location of access roads, surface treatment, drainage, etc, as applicable. engineer. A geotechnical engineer is to be present during 14. Compaction reports are required to verify fill compaction in dams. construction of dams. 2. Pipe and riser joints are to be watertight within 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. stormwater management facilities. 3. For temporary sediment traps or basins which are to be converted to permanent stormwater management facilities; conversion is not to take place until the site is stabilized, and permission has been obtained from the County erosion control inspector. .0 1111 I I I \ i PROPOSED J \1 RECREATIONAL _ \ AREA PROPOSED BASIN's FLOOR SHALL BE - SLOPED TO DRAIN TO THE RISER. A \ V: PERFORATED 06"SCHEDULE yo PVC \ UNDERDRAIN SHALL BE INSTALLED AT THE BASIN's LOW POINTS/ CHANNEL - \ I AND SHALL BE CONNECTED TO THE _ � ISER. THE PERFORATED PIPE SHALL BE (CENTERED IN A3' WIDE, 18" DEEP PEA GRAVEL TRENCH WITH FILTER FABRIC AT THE SOIL & STONE INTERFACE \ \ DETENTION BASIN DETAIL: \ \ \ \ SG1 LE 1 "=20' \ \ 20' WIDE TOP OF DAM \ \ ` ELEVATION=656', TYP. \\ \ ` PROPOSED 65'WIDE GRASS LINED \ \ EMERGENCY SPILLWAY \ \ ` w/ 4:1 SIDE SLOPES \ CREST ELEV.=654-75' PROPOSED 048" CL. III RCP STANDPIPE TOPPED w/STEEL WEIR PLATE \ \ PROVIDING 0io" OPENING AND TRASH RACK SHALL SERVE AS THE \ \ \ ` RISER STRUCTURE, SEE TRASH RACK DETAIL ON THIS SHEET. RISER STRUCTURE SHALL HAVE A RIM ELEV.=653.75' WITH ONE (i) 0i' LOW +00 ` FLOW ORIFICE (INV=646.o')AND FOUR (4) 05" MID -FLOW ORIFICES. / J . INV. 652.58). TO PREVENT FLOTATION THE RISER BASE AND BARREL \ (o J \ / � CONNECTION SHALL BE FIRMLY EMBEDDED 6" INTO AN 28" THICK J \ REINFORCED CONCRETE FOUNDATION THAT IS7.5'x7.5', AND BURIED /< o \ \ BELOW GROUND. 3P,- 0 f 0 0 PROPOSED z25.2o OF V OiS" CL. III RCP AT 4.79% �/ o i o \ \ WITH VDOT STD. EW-1PC i (INV IN=6yy:oo; INV OUT=638�')� i i PROPOSED FLAT VDOT CLASS AI COARSE AGGREGATE \ l i OUTLET PROTECTION w CIE. II FILTER FABRIC \ 7 UNDERLAYMENT KEYED INTO THE EXISTING GROUND A MINIMUM OF 9" ATTHE ENDS & ALONG THE PERIMETER \ EDGES OF FILTER FABRIC SHALL OVERLAP A M I NIMU 12". OUTLET PROTECTION TO EXTEND TO STREAM K5. CONTRACTOR SHALL NOT DISTURB THE EXISTIN REAM. - l \ (L=60'±, W1=3.75', W2=22', D=18" .) \ PROPOSED So'WIDE GREEIJWAY \ STRIP TO BE DEDICATED TO ALBEIVARLECOUNTY i n- i v oo' WPO STREAM BUFFER,TYP, \ Y _ 1 PROPOSEDio WIDE `S ROPERTY LIMITS, JADED GASS-LINED 1 - STY BENCH WITH A 2% TYP. ' MAXIMUM CROSS SLOPE. O i SA ETY BENCH TO BE OCED AT TH{E.TOP OF a THE FACILITY. \ �' tit" zinc plated hook p attached with 9/8' faetenor 0 ® ®®-1;'a" din. boles 1000 ]so inetric 1/4' HDPE pialc (optional) pipe :.. culvert r HDPF sl rucfurnl pinslGc with 0 21-1/8" holes and 1/4" plate OO manufacturcd by Plastic Solutions Inc. or equal 000 1 0000 3W..;W shown with optional pla!r HDPF. etruOurnl plasllr. with 2-1/8" holes and 114' plate Sac Lion manufactured by Plastic Solutions Inc or equal U O O O O 00 0 0 single Bmp Elevation orifice PLASTIC P.O. RaX a;lfte DEBRIS CAGE SOLUTIONS Nincneser VA 22604 INC. 877-877-5727 vnrpteslie-FalU:a^ [din Perforated a FOUNDATION DRAIN � ` s SECTION.1-9: TVPICAL GRsiPHIC.AL DETAELS Homogeneous fill min _�` Cut off trench -AL' below slJtable material TYPICAL HOMOGENEOUS EMBANKMENT CHIMNEY DRAIN Coo fl Grimm s ioEs -ain BLANKET DRAIN It red Fill or grovel R9L< or grovel < drain Transition filter TOE DRAIN Figure A -la. Homogeneous Emhart rients n'/ .S'eepage Controls lP SCOTT/R. CR?LUM Lic. No. 035791 P 06/02/20 1SIOuet. B G� 01 a1 O r+ N Vl N Z 0 a ¢ Z 2: Z w w0� 2:O Ow H N O OO U) (� N N Z �J ^ 0 ~ > > > Q ` (n Z W W w Z a a (7 W'-" ZZNU) LU cIf g 5 3 2 a a o a w rn > IIIui toj to to of 2 ct, (,a rn o 0 LU 0 V ZM ti Co co co co W N N W N Z LU J J_ U) In D C. ZLU 1� Uj V 0 C:)C:)N u U U UJ O w JOB NO. 112066 SCALE 1 ri=20' SHEET NO. 7 `0 _ LD-269 / �Rev.3-83 , y CULVERT DRAINAGE PLAN i, ; '� /� •■■ ■ ■ Project Foothill Crossing Phase V Plan Sheet No. Designer FGM, PE Sheet 1 of 1 Culvert beneath Pedestrian & Emergency Access Rev. Date Data 3/28/19 AHW Controls STATION: HYDROLOGICAL DATA DA_ = 53.4 ac. 100 yr. Flood plain elev. Design AHW depth elev. Structures elev. Beq. - TWelev. Culvert DA: Cw - 0.38, Tc - 27 min., 12 - 2.5 in/hr, 110 - 3.4 in/hr,125- 3.9 in/hr Shoulder elev. 649.0 - I CL -_ elev. 649.2 DISCHARGES USED RISKASSESSMENT ADT Skew ° Cover Q 2 = 50.73 CFS Demurs Available Length Q 1U--= 6�F_CFS Overtopping Stage Q �7 .T�CFS Flood Plain Management Inv. El. 641.5 So= 0.50% Inv. El. 641.16 __ Q CFS Criteria and Signitcant Impact Orig. Gr. Elev. L= �F_ Ong. Gr. Elev. _= Q = CFS CULVERT TYPE & SIZE Q GIB HEADWATER COMPUTATIONS CONT. HW. ELEV. OUTLET VELOCITY Treat COMMENTS INLET COW. OUTLET CONTROL HWID HW Ke do (dc+D)2 ho H LSo HW C.M. Smoolh Outlet Controlled w/downstream riprap. Proposed 36" RCP Culvert (10 yr) 68.99 68.99 2.0 6.0 0.5 2.6 2.80 2.80 4.0 0.3 6.5 6.5 N/A Culvert shall be countersunk 6'. Outlet Controlled w/downstream nprap. Proposed 3 5' RCP Culvert (25 yr) 79.14 79.14 2.5 7.5 0.5 2.9 2.95 2.95 5.0 0.3 7.6 7.6 NIA Culvert shall be countersunk 6'. esign F xceed. Prob. Elev. Overtop Flood Exceed. Prob. Elev. SUMMARY& RECOMMENDATIONS: Base Flood 1%Exceed. Prob. - Elev. SCALES"=1oo' �� ❑ � � �1w • TH 0)6 �� \�/� ♦♦♦ �� ■ ■ ■ ■ ■ ■ ■ ■ ■ (0!ISCTT R. LLIINGe. No. 0357J1 STREAM _ �• O O1/30/20 I " T 7� �� . _.,.'/. ram- ❑ - :_�:- - /i m m o ONAL Ln CD LU Z z F H .' ¢ w w w �FAA\ R(�VE�OTHILL'.�,I�. _ - --. - I I ,_- _ -�.� .. t'{ g g 0 �.•% / ❑ / i \\ �.... C. l` (CROSSING II SWM FACILITY 26' �❑�/ ' \ \I\ � {�� \� O UUl DO � O WATERSHED OUTFALLS BEL W' �__ _. I,✓ / \ I . LJ w cn a a d ❑ . /I.•/. / I' i / \ \ \� THE PROPOSEDCULVERT ! I I r\ -__ Q N • \ III I I • ❑ \ �. \ / Ln rUj is-- - / ..■■■■•• / / / \ \\\�� _ �N i ❑ I III 1I�� \\ %j/� > z vI v� m rLU - LU __ _ - _ ■ __■ ■ii■■J■■ 11�■■■■■■■■■�■■■• - w �♦ - - I -/ -- �j_% E PROPOSED CULVERT ANALYSIS WITH - - l ■ -- �� / / 'I - i ♦ 200' OF OVERLAND " - THIS PLAN) IS CONSERVATIVE BECAUSE ♦�. �� \ FLOW .W/ A ELEV.-6'/ I IT ASSUMES THE TWO SWM FACILITIES / �, / _ ------ �__ ■ _-I� �'' j'.. I'. MER�_ min.) I V j WITHIN ITS WATERSHED ARE CLOGGED r'r - - �. CIAL He� - - (Tc=22 I I \\ \ AND PROVIDE ZERO ATTENUATION. S / ■ I ; f. INDUSTRIAL AREAS \ \\ ♦ wpo STREAM WITH A Cw=0.70 1 \ \ �\ \V l00 �j 9.7ac. \ • / I I CULVERT DA k 00 o CD 53.4 ac. I ✓ �♦ I I� a Cw=0.38 4w�too \ • ❑� / / / I Tc=27 min. �/ f_ PROPOSE ♦1 \ • / / // 440' OF CHANNEL �' / / / / / I r 1/ CULVERT I ❑ 0 / / FLOW,vi/ 0 ELEV.=35'� r - N / ��• (TC=2 min.) � ` � I in " ♦ _ ---------- I I ❑ �d 61 OCJiGF / _ - �- . > r l-r ` \ s CONCENTRATED / - - �� J ' 3 FLOW AT 10ft/ 1 - / - _ •---•� �� \ m (Tc=3 mart' AIL A EXISTING / STREAM HACw=0a5 / s / ♦ \ FORESTED AREAS I"WCT O ■ �vJ / > ■ / _ \ / to LP ■ - \ a �� I _ / ♦� ❑ T \ RESI ENTIA% / AREAS WITH - ❑� �/ \ \ ♦ � A-C� 0.40 ■ ■ ■ PO i28 � w w � ■ �■-F w (Y ED om,IPAIEF . I �\ \ \ \ •� / 1 \ \ \ ■�•• /�_ ,� �, _-_ _. PROPOSED SWM FACILITY o. (WITH THIS PLAN) OUTFACES � r Z J ITS WATERSHED BELOW THE / .. ■ ■ ❑ -- _ _ _ _. -- PROPOSED CULVERT �L ^ v , ❑ ♦•��■�• ❑❑ 1J Ul U? CSC - o ❑ ,I 1-, \ 650 650 UPSTREAM END OF PROPOSED CULVERT SHALL BE COUNTERSUNK 6". PROPOSED INVERT ELEV.=641.50'. CONTRACTOR SHALL FIELD VERIFY CHANNEL BOTTOM ELEVATION & ENSURE CULVERT IS COUNTERSUNK 6". CONTRACTOR SHALL LINE THE CHANNEL BOTTOM, A MINIMUM OF 20' IN LENGTH, WITH VDOT STD CL II RIPRAP. CONTRACTOR SHALL LINE THE CHANNEL BOTTOM UPSTREAM & DOWNSTREAM FROM THE CULVERT. DOWNSTREAM INVERT ELEVATION OF PROPOSED CULVERT=641.16. DOWNSTREAM 'END OF PROPOSED CULVERT SHALL BE SET 6" BELOW EXISTING CHANNEL BOTTOM ELEVATION. CONTRACTOR SHALL FIELD VERIFY CREEK CHANNEL ELEVATION & ENSURE CULVERT INVERT IS BELOW INITIAL CREEK BOTTOM ELEVATION. RIPRAP OUTFALL WITH GEO-FABRIC UNDERLAYMENT RIPRAP OUTFALL WITH LENGTH=20' GEC -FABRIC UNDERLAYMENT 0+50 1+00 WIDTH=i8' LENGTH=20' PROFILE SCALES DEPTH=2' DEPTH=2$' CULVERT 1"=50'((H) PROPOSED GRADE/ EM RGENCY ACC SS ROAD 36" CL. II RCP 68.00' 5) o.5o0 645 645 XISTING RABE/ HANNE 640 640 m cc � 0 N O M 0 w o o ko i LULU J J I �, IIIIIIIIIIIIIII� CULVERT DETAIL 100' WPO STREAM-- \ BUFFER,TYP. 2 ❑ SCALE "'=30' ❑ ' F \ w O \ UPSTREAM END COUNTERSUNK 6". CULVERT - '� A SHALL T COUNTERSUNK 6". PROPOSED \ RTING EMAIN UNDISTURBED SANITARY SEWER U_ INVERT ELEV.=641.50'. CONTRACTOR i�� TO RE�jAIN' UNDISTURBED. ' � � n/ SHALL FIELD VERIFY CHANNEL BOTTOM , - BENEATH, PROPOSED FILL ELEVATION & ENSURE CULVERT IS COUNTERSUNK 6". PROPOSED \\ VD OT STD. = O 100, WPO-STREA EW-1 - _ 0 0 _ ---- BUFFER, TYP. �❑ � \ CROZET PARK POOL EXISTING SWM FACILITY -- n ' �� EXISTING U F- ❑ \ STREAM, TYP. w w 0 LU S \ CONTRACTOR SHALL LINE THE S a m ❑ I 1 20H NNNEL LENGTOTTOM, A MINIMUM H, WITH DOT STD.00IL JOB NO . P IC S C AL 6�poE II RIPRAP_ CONTRACTOR SHALL LINE 1 2066 p THE CHANNEL BOTTOM UPSTREAM & DOWNSTREAM INVERT ELEVATION OF PROPOSED 100 50 100 200 400 66 ❑ DOWNSTREAM FROM THE CULVERT. CULVERT=641.16. DOWNSTREAM 'END OF SCALE OPEN PROPOSED CULVERT SHALL BESET 6"BELOW \�®.. AS SHOWN EXISTING CHANNEL BOTTOM ELEVATION. E ` ( IN � EET ) CONTRACTOR SHALL FIELD VERIFY CREEK44 SHEET NO. I I70 �FFL� SPACE C CHANNEL ELEVATION & ENSURE CULVERT INVERT IS BELOW INITIAL CREEK BOTTOM ELEVATION. 8 Section 6. Pollution Prevention Plan. (reference County Code 17-404 and State Regulation 9VAC25-880-70 part II section AA) A. Plan showing pollution activities and prevention practices (Provide a reduced 1 lx17 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 Stonnwater Pollution Prevention Plan (SWPPP) Albemarle County Pollution Prevention Plan Prevention - Stopping - Containing - Cleanup - Reporting A spill is reportable if it; causes a sheen (the sheen Wile), creates discoloration/emulsion on surface waters, or reaches storm drains. Any Fish Kills must be repo d. Reporting information regarding specific substances can be found below. Potential Pollution Generating Prevendon/Response Activities: Quick Reference Chart Fuels, Hydraulic Vehicle refueling and maintenance operations will be conducted in a dedicated Oils and Vehicle location away from surface waters. Secondary containment (berms), readily Maintenance available spill kits and cover will be provided where appropriate. For additional information, see the Fuels and Oils subsection below. Soaps, Solvents, Chemicals will be safely stored in sealed containers when not in use. Clean-up and Detergents & disposal will be done in a manner to prevent contact with stormwater, utilizing Wash Water cover, tarps, buckets, and proper disposal techniques. For additional information, see the Hazardous and Toxic Chemicals subsection below. Construction products and materials will be stored in a safe location and handled in a manner consistent with the pollution prevention plan and manufacturer's Hazardous recommendations. Likely utilized items on site include asphalt sealants, copper Materials Construction flashing, roofing materials, adhesives, concrete admixtures, pesticides, herbicides, products, materials, insecticides, fertilizers, and landscape materials. Construction and domestic wastes and wastes such as packaging materials, scrap construction materials, masonry products, timber, pipe and electrical cuttings, plastics, Styrofoam, concrete, and other trash or building materials will be disposed of properly. For additional information, see the Hazardous and Toxic Chemicals subsection below. Fertilizers will be applied per manufacturer's recommendations and not during Fertilizers rainfall events. For additional information, see the Hazardous and Toxic Chemicals subsection below. On site portable lavatories must be located away from surface waters and storm Sanitary Wastes drains. Any spills must be cleaned according to federal, state and local regulations. For additional information, see the Sanitary Waste subsection below. Wash Water without Wash water will be directed to sediment basins or traps, using filtration devices Non-Stormwater Soaps such as filter bags or sand filters or similarly effective controls. Discharges Site Excavation Must pass through a sediment trapping device and be released onto a stabilized (Examples listed in Dewatering surface. Conveyance channels must be stabilized. Table 4 below) Utility Flushing Energy from clean water releases must be appropriately dissipated in a stabilized area. For additional information, see the Water Testing subsection below. Concrete wash water will be directed into a leak -proof settling basin or container. The container or basin shall be designed so that no overflows can occur due to Concrete Waste & inadequate sizing or precipitation. Hardened concrete wastes shall be removed and Wash Water 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 Managing Waste surface waters. For additional information, see the Concrete subsection below. All solid waste and debris must be deposited in dumpsters and kept out of surface waters. Exposure of waste materials to precipitation shall be minimized by closing Solid Waste or covering waste containers during precipitation events and at the end of the business day or by 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. Other Spills and Leaks Oil, chemical or other hazardous substance spills and leaks that exceed the reportable threshold will be reported to the DEQ in accordance with Part Ill G of the Permit as soon as the discharge is discovered, and in no case later than within 24 hours. A reportable quantity of oil is defined by the EPA as a discharge to surface waters that causes a sheen, discoloration, and/or an emulsion. A written report of the unauthorized discharge shall be submitted to the DEQ and VSMP authority within five days of the discovery of the discharge and include the information listed below: • Name, address, and telephone number of the person reporting and the responsible party • Specific location of the incident • Date and time the incident occurred or was discovered • Name of the chemical/material released • Source and cause of the release • Total quantity discharged • Medium into which the substance was discharged • Amount spilled into water • Weather conditions • Name of the carrier or vessel, the railcar/truck number, or other identifying information • Number and type of injuries or fatalities • Whether an evacuation has occurred • Estimation of the dollar amount of property damage • Description of current and future cleanup actions • Other agencies notified or about to be notified Reports will be made to the following: DEQ Valley Regional Office Phone: (540) 574-7800 Fax: (540) 574-7878 For reports outside normal working hours, leave a message. Virginia Department of Emergency Management Emergency Operations Center (EOC) Phone: 1-(800) 468-8892 Materials and equipment necessary for oil or chemical spill/ leak 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, universal absorbents, sand, saw dust, and plastic and metal trash containers. All oil or other chemical spills/ leaks will be stopped, contained, and cleaned up immediately upon discovery. Those large enough to reach the storm sewers will be reported to the National Response Center at 1-800-424-8802. In the event of a hazardous spill contact: 9-1-1 Fuels and Oils The State Code of Virginia §62.1-44.34:19, states that discharges that may be reasonably expected to enter state waters, lands or storm drains must be reported. In the event of a spill, it will be stopped, contained, and cleaned up immediately and the material, including any contaminated soil, will be disposed of according to all federal, state, and local regulations. Any on -site storage tanks will have a means of secondary containment. All vehicles on site will be monitored for leaks and receive regular preventive maintenance to reduce the chance of leakage. Petroleum products will be stored in labeled, sealed containers. Spill kits will be included with all fueling sources and maintenance activities Hazardous and Toxic Chemicals Spills of hazardous or toxic chemicals that exceed the reportable quantity threshold must be reported, as previously stated. The EPA lists reportable quantity thresholds for each chemical under 40 CFR Part 110, 40 CFR part 117, or 40 CFR part 302. All paint containers and curing compounds will be tightly sealed and stored when not required for use. Excess paint will not be discharged to the storm sewers but will be properly disposed according to the manufacturer's instructions. Spray guns will be cleaned on a removable tarp. Chemicals used on -site are kept in small quantities and stored in closed containers undercover and kept out of direct contact with stormwater. As with fuels and oils, any inadvertent spills will be cleaned up immediately and disposed of according to federal, state, and local regulations. Fertilizers will be applied only in the minimum amounts recommended by the manufacturer. Fertilizers will be worked into the soil to limit exposure to stormwater. Fertilizers will be stored under cover and partially used bags will be transferred to a sealable bin to avoid spills. Sanitary Waste Portable lavatories are located on -site and are serviced on a regular basis by a contractor. They will be located in upland areas away from direct contact with surface waters. Any spills occurring during servicing will be cleaned up immediately, including any contaminated soils, and disposed of according to all federal, state, and local regulations. Concrete Concrete trucks will not be allowed to wash out or discharge surplus concrete or drum wash water on the site, except in a specially designated concrete washout area which contains all wash water resulting from washout activities. Form release oil used for decorative stonework will be applied over a pallet covered with an absorbent material to collect excess fluid. The absorbent material will be replaced and disposed of properly when saturated. Water Testing When testing/cleaning of water supply lines, the discharge from the tested pipe will be collected and conveyed to a completed stormwater pipe system for ultimate discharge into a sedimentation basin or SWMBMP facility. Authorized Non-Stormwater Discharges The following table (Table 4) displays non-stormwater discharges from construction activities that are authorized by this general permit when discharged in compliance with the permit: Table 4. Authorized Non-Stormwater Discharges A Discharges from firefighting activities and/or fire hydrant flushings. B Waters used to wash vehicles or equipment. ' C Landscape irrigation, or water used to control dust. r D Uncontaminated waterline flushings, air conditioning/compressor condensate, and ground or spring E Potable water sources, including uncontaminated waterline flushings. F Routine external building wash down. ' G Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred (or where all spilled or leakcd material has been removed prior to washing). r H Foundation or footing drains where flows are not contaminated with process materials such as solvents. I Uncontaminated excavation dewatering, including dewatermg of trenches and excavations. f Where soaps, solvents, or detergents have not been used; and where the wash water has been filtered, settled, or similarly treated prior to discharge. BMP MAP Concrete Washout Portable Toilet Material Storage Trash Container Fueling Station ACCESSWAY ESC PHASE II EXHIBIT \ GRAP C 9 AL / NOTE: PROPOSED SLOPES STEEPER THAN z:1 \ EXISTING POND APPROVED UNDER WPOzo1 000zo \� // 7 MATCHLINE I x 9 I SCALE: 1 " 80' COVER SUCH AS MULCH OR JUNIPER PLANTINGS. A� /�� l \ — r ao o +s 30 o SHALL HAVE LOW MAINTENANCE GROUND \ / % I SEE THIS / TH QF \ \' " . y SHEET f I / -E3o SC( R. LINS� x snch ft \ \ \ � f _ ll ` � Lic. No. 035791 � \ ` y �'�I I AREA OF EMERGENCY ACCE oP, _' �� PRIMITIVE NATURE TRAIL. NO \ \ - "� y I I I X t� 01�3��20 'rV � PROPOSED CLASS B, TYPE 1 \ � \ \ ` \ � � W I DISTURBANCE (1.03 ACRE / �� x I Orc, . f I I \ PROPOSED WITHIN / I �`SS'IO BAG\ / °y DISTURBANCES SHALL � \ ; - � �' � \ y y � '', 1 EXISTING LIMITS OF x NAL y, WITHIN THE57 RO BUFFER OR \\ \ ` ly �"" I DISTURBANCE APPROVED'�I III z OUTSIDE THE PROPOSED LIMITS \ \ yI I FOOTHILL CROSSING II VMP I CD 'T✓ 1 C - ,� �� `,' ' ° o / SECTION OF THE TRAIL. T S \ \ RIPRA`l� \ \ y i'\ AMENDMENT #2 I I I x w / 0 S 5 / OF DISTURBANCE FOR THIS \ \ W I x y y (WP0201700020) I1 x e \ TRANSITION L. . Vy y \ I ; \ BOUNDARY OF NEW L1g1 0 x z DISTURBANCE PRQPOSEDI�IITS,��\ x o I I o ✓ \ \ \FLOW BARRIER (SANDBAGS, P�10NOOD, / THIS VSMP AND REGIS A770N' - --- - 5F 5 / lv r o \ \ E SEY BARRIERS, OR EQUIVAL T STATEMENT = 6.03 ACES` \ X o i \ — \ N$TALL STREAM DIVERSION AT LOCATION � \ I (.�+ / m PROPQ ED EMERGENCY ACCESS LVERT ` \ r v �Q \ AT THE TIME OF THE SITE's ROUGH GRADING THE r= _ ` �cr J _� \ - \ BACKING. i \� m rn o CONIKAUIUK SHALL RECONFIGURE, AS NECESSARY, THE _\ \ \ s A x ESC PHASE I DIVERSION TO ENSURE IT REMAINS /. X � FUNCTIONAL DURING ESC PHASE II, CONTRACTOR SHALL PROPOSED SWM PRESERVATION.. X COORDINATE ANY MODIFICATIONS & REMOVALS OF - X X `` X-_ - X_X - X - - - „(X _ 0 ip� DIVISIONS WITH THE ESC INSPECTOR. ESC PHASE II \ \ \ X a ° EASEMENT AREA ENCOMPASSED / - \ •� X - -�X--YEA � _ - X X w w � WITHIN ESMT., TYPICAL - �, --/ L AS LONG AS POSSIBLE. \ ` X - �C \ - X X X H- �, K 1 - ♦ \ X-- X-- \ \ - X X X Q Q a -y -'{ � j _ f C ; � , DIVERSION TO REMAIN FUNCTIONA PARCEL LIMITS -` � � - X � � \ _ - - X X X❑ ❑ N v >` ,�`_ �� r( - T I I�I� - I // j// - -- ,♦ \ (TYP.) T, \ ��,\ k X X�YC _�FL6W BARRIER NDBAGS,.PYWOOD, �- - �XX X_I Z A- �r \ JERSEY BARRI S,OR EQUI ENT) - -- _ X X y 0 Q z z w f / j L i F ° / / / ♦ \ �X X� 1 `1 \ — w w p I ♦ \ ,� - _ \ RIPRAP AT X X- O •• o WIRE S // ♦ f\ X . _ �. Li- X X X Kj m O O _ >: BACKING / j ♦ \'I" X�X \ \ X X N U U U 'i — — \ TRANS SOfd X O w x x..- ,--' / / I I I / 1 ♦ \ 10 `WP STREAM 'A o En >I \ + X- vl cn s IF ,� r' - - J L _ - . I _ _. - / �� ♦ A kv kv _ X X ul z w - - - �.-: Z Z j 1 -1\ y L / x/ x x � > \ \ \ j- � I ♦♦ li -- _ - _ �' IGNMEN -0 STRE \ �-1- s \ ` ❑ ❑ (q = SUBDIVISION APPROVED _ _ X X ♦ ��a w w w ° K> UNDER SUB201400187 — x — x \ ♦♦ I ED\k\-I' x- (UNDER CONSTRUCTION) x wH R IN r / ♦ — XX _ A A vvv � �oz _ i r ti to — ° X V V -° I �\ \V.,. PROPOSED 50'GREENWAY��\\ �. L-WE_ TO BE DEDICATED TO e SEE THIS SHEET dam, I 'z \ ♦ / r V A \ ° �- SE MITS OF LBEMARLE COUNTY \ ,.. I �� / � � � - '. � I � � ♦� � � DISTURBA CE - 06 ac. V A � � � A � c \ ♦ TOT \ \ c DIVERSION CHANNEL CROSSING I / �� \\ ° vv -FLOW _ - �X o - - - \ _ �� o FORMER LOCATION w,°F PROPOSED 18" DIVERSION. ,�, \ \ �� \ \ '2 Lu °} OF FLOW awR[R CONTRACTOR SHALL ENSURErq a-r FENCE ' j ( I' I POSITIVE SLOPE IS MAINTAINED. I „ , ` \ \ \ z ❑ v m - x I ° BERM SHALL BE STABILIZED AS �,� \ �\ 0 0 1 �rrooe c�ROTa-stcnoN / I A FIRST STEP IN DISTURBANCE. ' I ♦ �kv \ \� �,, c A -A _ . / <,\ 1 -U I / 04 _ \�\-IV PRIMIFNE NATURE OPOSED B, PENS S �. . TYPE TR TREE DISTURBANCES SHALLLAICCUR WHioOUR STRUM OTECTION °Q CWSSNC. WITHIN THE STREAM BUFFER OR pptt SPED. 3.24 RIA4� `. ^ / OUTSIDE THE PROPOSED LI�Q�S 00 BE LOCATED AT - �• /�� p,pR,,p ` / 'I e , �' IS \ \ oRiawv. sTREAMaa _ `• a `\ OF DISTURBANCE FOR THIS FOR RnTNL cRassxcs) .. �✓ ATR TRANSITION I ° - :-- �� yH-. SECTION OF THE TRAIL'. - - PROPOSED DRAINAGE I® ♦♦ +\ / °m eA FLow RuzairR - DIVIDE COINCIDES WITH ° ♦ ,�f\ i/ +/j/ s\ (�f o0 --- THE PROPIrIFTY LINE & I - --- - IV % ♦ _ A X \, ®® �A .- PROPkYSED CUT. �; I IP - I ♦♦ \�\ \ X X XX Xj/ VA ��. (� a Y CD +\ CV - C ° FLOW A I �� — I t\IC /j/I \ \ \S\ > o a � .PROPOSED LIMITS OF I. ° � \ ♦ � I \ � � \ DISTURBANCE COINCIDES I to OS D S FETY FENCE, 1 0. - � N. - FLOW BARRIER AI WITH THE PROPERTY LINE. - II I ST LL IG S "WARNING eA - I fV `PROPOSED A \\ > n (Rw . saTOencs, \ _ I �i- I UI K S N KEEP OUT" 1 \,./. 'TREE LINE \ L ` MEFS OR r i wRcoH cnc I I 5 ` \\ (TYP.) \\ s\ W W U o FORMER LocA oR RucE RiRRnP OPERATOR I II IP / �� " ' \ I / \ \ \ \ \ \ \ ~ 4./ / 1 A �� A z W Fl.IOM flWUkl[R AT T'RAtr5rt'gN "'� / _-... ° , II VIEW A T PERSPECTIVE VI 11 �'I li I. + PROPOSEDI8"DIER ION. CONTRACTOR SHAL EN URE , TP TREE Source: Va. DSWC - - - ° IP. I - I PROPOSED PROPOSED P SITIVE SLOPE IS MAINT INED \ \-J\ PROTECTION Plate 3.25-1 I �I WASHOUT ARE BAFFLE B RM SHALL BE STABILIZE \ \ \ Q Q -O im 3.25 - _ A RST STEP IN DISTU BANG . vfv• BACKING A V (D W W/ WIRE a P �z SB #1 — 14.02 ac. x LU !/� a MNAGED STPE SLOPES (TYIP E fr \ Ul U) ° PROPOSED SAFETY FENCE _ z i ON WESTERN PROPERTY A '� .>�' I Af�:Z \ BOUNDARY TO PROTECT EXISTING SINGLE FAMILY " I � R I A �W �W z HOMES � p1 J 4 i \ I fit\ `c / \ j I J THE FUELING TANK SHALL B CO LETELY SURROUNDED BY A 2 / I - �P, ° ♦, � a . DEEP 2' EARTHEN WIDE BERM WITFV A HEAVY MIL POLYETHYLENE /: 1 I LINING, OR BE PLACED IN AN IMPER IOUS OPEN -TOP DUMPSTER. \ _ _ Clp I L- , \ / j \ / x LU EVENT OF A SPILL. CONTRACTOR SHAL ENSURE VOLUME CAPACITY x Tn Ln O LLL�� nN/ ° THE PROPOSED BERM OR DUMPSTER HALL CONTAIN FUEL IN THE I __ -NI v I •° \ `x L.1_ O o X I A30 .n I IS 10% LARGER THAN THE MAXIM 'VOLUME OF STORED FUEL. x '° O i '� U ° x LOCATION F z O _- x �< FUELING �\ \I , f� ��rY \ % LOCATION OF I a. g : I \ ` - \f\� K 15cy DUMPSTER oJi LOCATION PPOTTIES f----❑ - - _ \ \f\ IP ROPOSED ESC PHASE I DIVERSION_ \ ` -f E --- I INLET SHALL REMAIN FUNCTIONAL AS LON -� , 0 PR ECTION, TYR' / \¢\ ' w -°° /WIRE PROPOSE REMOVAL WITH THE ESC NR SCAO // \I� / ` L O w w COORDINATE THE TIMING OF I \ CKING INDIGO RO -�� \ ° �® w w - w.. W W 1 w ---- _ EXTENSION / W IP a -- ..` // �_ \ff� JOB NO. o " 0 a W W W W W�� 112066 X X R= =X -X- _ .:. _I V V, SCALE � RROROS€D PAVED CONSIRllCIIOrLENIRANCE - - _ .. - - - :. _ - _ - - w7 -� -�I�t �- t t-� �'� 1 (T=.3O ( co 12' 70'101..1x 1 ONSI EWASH-RACK-DOWPt - -- - x _ CONTRACTOR SHALL INSTALL A :PROPOSED -CONTRACTOR-- - - -- - - -- -- '� - GRADIENT FROM. R%W nn+Faarpp� RWD R/W DIVERSION ACROSS THE CRS PARKING & STAGING PROPOSED LIMITS OF DISTURBANCE COINCIDES WITH THE �Y ' -� SHEET NO. N -- - - - Sowce; Adapted from VDOT Standard Sheets Plate 3.75-2 - _ _- CONSTRUCTION ENTRANCE. AREA WITH RAIN GAUGE SILT FENCE AND THE PROPERTY LINE. THE DRAINAGE DIVIDE f1 'f ' �� _� 5 t -- AND SILT FENC€ ARE OFFSET FOR GRAPHICALLY PURPOSES. � �� Section 7. Discharges to impaired waters, surface waters within an applicable TMDL wasteload allocation, and exceptional waters. (Provide detailed measures for any applicable TMDL) Issued — 10/2014 Stormwater Pollution Prevention Plan (S WPPP) Albemarle County Impaired Waters / TMDL Statement Receiving Waters The receiving waters for this site is Mechums River. The USGS Quad map and National Wetlands Inventory (NWI) map can be found within this section. The receiving waters for this project are impaired. Factsheets for waters identified as impaired in the 2018 § 305(b)/303(d) Water Quality Assessment Integrated Report (along with any associated documentation) are included in this Section. Total Maximum Daily Load (TMDL) Limitations & Impaired Waters Upon obtaining coverage under the 2019 Construction General Permit, DEQ will determine if the land disturbing activity will discharge to a TMDL water body and identify any additional measures needed to address the TMDL. This project resides within the Chesapeake Bay watershed, for which a TMDL wasteload allocation has been established. The Chesapeake Bay TMDL is a comprehensive "pollution diet' to restore the health of the Bay and its local streams, creeks and rivers. The Chesapeake Bay TMDL — the largest such cleanup plan ever developed by the U.S. Environmental Protection Agency (EPA) — sets limits on nitrogen, phosphorus and sediment pollution necessary to meet water quality standards in the Bay and its tidal rivers. The Chesapeake Bay TMDL was prompted by insufficient restoration progress and continued poor water quality in the Bay and its contributing rivers. The TMDL is designed to ensure that all pollution control measures needed to fully restore the Bay and its tidal rivers are in place by 2025. 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 the general permit for a sediment -related parameter or nutrients are not eligible for coverage under the general permit unless the operator develops, implements, and maintains a SWPPP that minimizes the pollutants of concern and, when applicable, is consistent with the assumptions and requirements of the approved TMDL wasteload allocations. In accordance with Part I B 4, control measures shall minimize the pollutants of concern and, when applicable, are consistent with the assumptions and requirements of the approved TMDL wasteload allocations for waters identified as having impairments in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated Report. Stabilization requirements (7 days after final grade is reached), inspection frequency, and application of nutrients for projects with impaired waters shall follow the guidelines set forth within Parts II B 5-7. Fact Sheets for Impaired (Category 4 or 5) Waters in 2018 James River Basin Cause Group Code: H23R-03-BAC Mechums River Cause Location: Mechums River from the headwaters downstream to its confluence with the Moormans River. (Start Mile: 26.36 End Mile: 0.00 Total Impaired Size: 26.36 Miles) City / County: Albemarle Co. Nelson Co. Use(s): Recreation Cause(s) / VA Category: Escherichia coli / 4A This segment is impaired due to exceedences of the a-coli bacteria WQS at station: 2-MCM005.12 (14 exceedences of 71 samples for a-coli) and 2-MCM018.92 (25 exceedences of 70 samples for e-coli). Initial Listing Date: 2006. The impairment size was lengthened in 2012 to add upstream assessment units. This segment is included in the EPA approved Mechums River bacteria TMDL. Federal TMDL ID # 35771. Cycle TMDL Cause First Dev. Water Assessment Unit / Water Name / Location Desc. Category Cause Name Listed Priority Size VAV-H23R_MCM01A00 / Mechums River / Mechums River from the4A Escherichia coli 2006 L 7.26 pumping station below Lake Albemarle downstream to its confluence with the Moormans River. VAV-H23R MCM01B10 / Mechums River / Mechums River from its 4A Escherichia coli 2006 L 3.92 confluence with Lickinghole Creek downstream to the pumping station below Lake Albemarie. VAV-H23R MCM02A00 / Mechums River / Mechums River from its 4A Escherichia coli 2012 L 2.07 confluence with Stockton Creek downstream to its confluence with Lickinghole Creek. VAV-H23R_MCM02B10 / Mechums River / Mechums River from the4A Escherichia coli 2012 L 13.09 headwaters downstream to its confluence with Stockton Creek. Mechums River Estuary Reservoir River Recreation (Sq. Miles) (Acres) (Miles) Escherichia coli - Total Impaired Size by Water Type: 26.34 Sources: Non -Point Source Wildlife Other than Waterfowl Draft 2018 Appendix 5 - 954 i a q ° o C co e(r e e„• w e _ s o ° n goolo R �� y go° � '♦. 4�0 �e to o"oagee Y _ Laafa la o h M'q'ia. f' pa °e a. ' J4AaP(G(P ROC Q N GIOIN M1NT'O M1e .i "I ... mew 0 0 0 ,, ern a •a of 3 °• Np�f�9Is 4e'e W RrN ''oo 'h AP •l°e�`I tlO' i ema PiY a1Q Rp Locu4 La _ yPa\ae vx o� a? d e140 •.e �g Y Gtl10r � a6 0 � Albemarle County VA �px• cagy s� aa,\h 4 • a° Oar�aOl The Meeeows � eV oP�G1ao0.a.1� �e a i` 4 F Brownsville ° PiYPa c , ft•oa M1a° Wv lvke� Y e.,,a^argleR _ u S°Yc i n Project Area Vicinity Map - Glenbrook at Foothill Crossing WSSI #30245.01 NORTH 0�2 000 Feet Original Scale: 1 "= 2.000' Source: World Street Map - ESRI Wetland Studies and Solutions, Inc. Exhibit 2 a DAVEY#-. company oaa.aaVe-vee.mmwuamrnaectssrouuus,aazumaueae.m,ulsswrrr rnasemauzae.ut U ususmxa •�� %/YZ�• o �l Tr /- � �`�i � :.., r�—•�%•�. ,,jam^ •'• � �, . � ; �� .%✓` . �, �, � � , � e:sue., Q Project Area Crozet, VA 1999 Longitude: 78'41'31"W, (78.691944') Latitude: 38756"N, (38.065555') Hydrologic Unit Code (HUC): 020802040102 HUC12 Name: Beaver Creek-Mechums River COE Region: Eastern Mountains and Piedmont USGS 7.5' Quadrangle Map Glenbrook at Foothill Crossing WSSI #30245.01 NORTH 0�2 000 Feet Original Scale: 1"2 1 = .000' Wetland Studies and Solutions, Inc. Exhibit 3 a DAVEYI company Q Project Area Wetland Type ® Open Water - Freshwater Forested/Shrub Wetland Freshwater Emergent Wetland 0 Estuarine and Marine Wetland 0 Other •Ave S Digital National Wetlands Inventory Map Glenbrook at Foothill Crossing WSSI #30245.01 Source: U.S. Fish and Wildlife Service; March 2019 NORTH 000 Feet Onginal Scale: 1 "= 1 000' Wetland Studies and Solutions, Inc. Exhibit 4 a DAVEYI. company 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 (S WPPP) Albemarle County Qualified Personnel Name: Caroline Hollandsworth Qualifications: DEQ Dual Combined Administrator Company: wetland Studies and Solutions, Inc. Name: Qualifications: Company: Name: Company: Qualified Personnel Name: Kathy Dobbie Qualif cationS: DEQ Erosion and Sediment Control Combined Administrator Company: Wetland Studies and Solutions, Inc. Name: Bobby Rae Allen Qualifications: DEQ Erosion and Sediment Control Combined Administrator Company: Wetland Studies and Solutions, Inc. Name: Qualifications: Company: Wetland Studies and Solutions, Inc. Qualified E&S and SW Inspectors Updated:08/26/2020 VA DEQ E&S Certifications VA DEQ STORMWATER Certifications DOT E&S Certifications National Cents. WSSI Office/Depart. RLD Program Admin. Inspector Plan Review Certification # Program Admin. Inspector Plan Review Certification # NCDOT VDOT CESSWI CPESC Bryce Miller RVA-Compliance X X X DCA0329 X X X DCA0329 X X X X Caroline Hollandsworth RVA-Compliance X X X DCA0457 X X X DCA0457 X X X TBS Terry Williard RVA-Compliance X X X DCA0421 X X X DCA0421 X X X TBS Amanda Ward RVA-Compliance X X X X DCA0470 X X X DCA0470 TBS X TBS TBS Bobby Rae Allen RVA-Compliance X X X X ESCA0406 X TBS TBS n/a TBS X TBS TBS Kathy Dobbie RVA-Compliance X X X X ESCA0420 X X X Provisional TBS TBS TBS TBS TBS = To Be Scheduled Note 1- DEQ Combined Administrators have all three E&S or Stormwater Certifications Note 2 - DEQ Dual Combined Administrators have all six E&S and Stormwater Certifications Section 9. Signed Certification (Provide certification according to 9VAC25-870-370) CERTIFICATION "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." Operator Name: Jeremy Swink Company: Stanley Martin Companies, LLC. Title: Vice president- Charlottesvi!o &Richmond Signature: Date: 2 $( —20z0 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, Jeremy Swink (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 Glenbrook At Foothill Crossing- Ph V construction site. The designee is authorized to sign any reports, stormwater pollution prevention plans and all other documents required by the permit. Qualified Environmental Compliance Inspectors (name of person or position) Wetland Studies and Solutions, Inc. (company) 717 N. Courthouse Rd. (address) North Chesterfield, Virginia 23236 (city, state, zip) 804-253-9880 (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: Jeremy Swink Company: Stanley Martin Companies, LLC Title: Vice President- Land, Charlottesville & Richmond Signature: Date: Issued — 10/2014 Stonmwater Pollution Prevention Plan (SWPPP) Albemarle County Section II. General permit copy (Provide a copy of the construction general permit, 9VAC25-880) Issued — 10/2014 Stonnwater 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 FOMO 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 11 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. MMM 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 11 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 III 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 II I 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. 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 (Provide templates for your inspections. Requirements are listed in 9VAC25-880-70, Part II, section B and F.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County VAR 10XXXX VPDES EROSION CONTROL INSPECTION FORM Project Name: New School/111222 WSSI #: Permittee: New School Public School Contractor: XYz Contracting Location: New Town, Virginia Weather: Sunny, 70's XXXXX.XX Wetland 9ryFa and Solminnmin�' a YIYl1/i wmpany Date: 03/01/2017 Time: 1:00 PM Weekly Rainfall (in.): 0.75" Item# Inspection Questions N/At YESz No 1. Have all denuded areas requiring temporary or permanent stabilization been stabilized? ❑ ❑ 2 Have disposal/borrow and soil stockpiles (on -site and off -site) been stabilized with seeding and/or El protected with sediment trapping measures? Are off -site areas included in the E&S plans?El 3. Does permanent vegetation provide adequate stabilization for completed project areas? X❑ ❑ ❑ 4 Have perimeter controls been constructed as a first step in land disturbing activities (i es clearing OR ❑ X❑ ❑ grubbing)? 5 Are perimeter and other erosion and sediment control structures and systems be aintained, ❑ ❑ Q inspected and repaired to ensure functionality? 6. Have earthen structures, such as dams, dikes, and diversions, been imm 'ately stabiliz ❑ © ❑ 7. Have sediment basins and traps been constructed according to plans, spec ons, and/or 3011ilgirdsi& ❑ X❑ ❑ 8. Are finished cut and fill slopes adequately stabilized? InkX❑ ❑ 1 ❑ 9 Is concentrated water flowing through adequate slope drains, es, or n1froditIVIIIIII&W cut or ❑ ❑X ❑ fill slopes? 10. Do slope faces have drainage or protection from water se" S? X❑ ❑ ❑ 11. Do all operational storm sewer and culvert inlets have inlg„ r ion in rdance with plans, El ❑ X❑ specifications, and/or standards? 12. Are stormwater conveyance channels stabilized v_ lth channe Thing a r out protection? ❑ X❑ ❑ 13. Is in -stream construction conducted using measures to minimize channel age? ❑ ❑ ❑ 14. Are temporary stream crossings of non -erodible material installed where construction equipment X❑ ❑ ❑ crosses? 15. Are all DEQ water quality#rmit requirements being adhered to? ❑ X❑ ❑ 16. Are material/equipment handling/storage areas clean and free of spills, leaks, or other deleterious ❑ ❑ materials and are related protective measures adequate%'' 17. Is re -stabilization of in-stre_+am construction complete before leaving the area? 0 ❑ ❑ 18. Are utility trenches stabilized properly according to the specifications? ❑ 0 ❑ 19. Is effluent from dewatering oper ns being filtered (including in -stream structure dewatering)? ❑ X❑ ❑ 20 Are constructi nces adequa protected, being maintained, and paved roadways kept clean from El El and mud? AL 21 Have all temporary c I res that are no longer needed been removed and such areas been Q ❑ ❑ stabilized? 22 Are properties and waterw ys adjacent to development adequately protected from pollutant discharge, El X❑ El erosion, flooding, and sedimentation? Has encroachment outside of the project limits been prevented? 23, When necessary, are dust control measures being properly implemented? X❑ ❑ El 24. Have all deficiencies from previous reports been addressed? ❑ ❑X ❑ 1—N/A: not applicable; 2—YES: All items related to contract requirements, plans, specifications, standards, and permits are being satisfied If a box is checked 'NO' please we the attached sheet for issue of non-compliance and corrective action necessary to regain VPDES compliance. This report was written by Joe Inspector 03/01/2017 Print Name Signature Date Sheet 1 of 2 VAR 10XXXX VPDES EROSION CONTROL INSPECTION FORM Project Name: New School/111222 WSSI #: 1' •.LLI:I:w:1:1 Wetland srnF"and Solmions, ln�' a OrRA company Date: 03/01/2017 Item n (See sheet l) Description of problem, location, and corrective action Date corrected/ Initials S Silt fence needs to be cleaned out and repaired when sediment reaches half the height of the barrier. 11 Inlet protection needs to be cleaned out and repaired when sediment reaches half the height of the barrier. 16 Concrete washout must be contained within an impervious area where it can cure and dry preventing wash from contaminating surrounding soil. 20 Sediment is being tracked onto roadway. Re -work construction entrance and sweep roadway as needed. * Continue to monitor and maintain all E&S controls for proper function. VSMP inspections occur every four business days, following the Commonwealth of Virginia holiday schedule. Weather Underground - Station Name (Station ID) - XXXft. Elev. I Lat., Long. Sheet 2 of 2 SWPPP Amendment & Modification Log Date Description of Amendment or Modification Responsible Party Signature per Part M K Operator or Delegated Authority Responsible Party Signature per Part 111 K Operator or Delegated Authority Responsible Party Signature per Part N K Operator or Delegated Authority Responsible Party ---------------------------------------------- Signature per Part 111 K Operator or Delegated Authority Record of Land Disturbance The operator (or designee) shall update the SWPPP no later than seven days following any modification to its implementation. All modifications or updates to the SWPPP shall be noted and shall include the following items: 1. A record of dates when: a. Major grading activities occur; b. Construction activities temporarily or permanently cease on a portion of the site; and c. Stabilization measures are initiated; 2. Documentation of replaced or modified controls that have been used inappropriately or incorrectly and where modified as soon as possible; 3. Areas that have reached final stabilization and where no further SWPPP or inspection requirements apply; 4. All properties that are no longer under the legal control of the operator, and dates of which operator no longer had legal control; 5. The date of any prohibited discharges, the discharge volume released, and what actions were taken to minimize the impact of the release; 6. Measures taken to prevent the reoccurrence of any prohibited discharge; and 7. Measures taken to address any evidence identified as a result of an inspection required under Part II F. By initialing a SWPPP modification below, you are making the certification found in Part III K of the Permit. Action and Location Start Date / End Date initial Started mass clearing andgrading in Section 1 of site. 711114- 1011114 XG Installedperimetercontrols in Sections 1-5. 7/1/14 XG Started mass clearing andgrading in Section 3 of site. 8113 4 XG InstalledSediment Basin #1 n 813114 Construction activity done in Section 1— temporary stabilmed. N further inspections needed 4 IT Temporarily sta6il-medstoc(pde in 9VE corner of site. 2/14 (DIF Section 7 of project transferred legal control o . 1 1 10115114 �7f ftracedconcretewashout nearsite aV r. 11128114 W Instalredperimetercontrols ' ect ns -5 1112115 IG Record of Land Disturbance The operator (or designee) shall update the SWPPP no later than seven days following any modification to its implementation. All modifications or updates to the SWPPP shall be noted and shall include the following items: 1. A record of dates when: a. Major grading activities occur; b. Construction activities temporarily or permanently cease on a portion of the site; and c. Stabilization measures are initiated; 2. Documentation of replaced or modified controls that have been used inappropriately or incorrectly and where modified as soon as possible; 3. Areas that have reached final stabilization and where no further SWPPP or inspection requirements apply; 4. All properties that are no longer under the legal control of the operator, and dates of which operator no longer had legal control; 5. The date of any prohibited discharges, the discharge volume released, and what actions were taken to minimize the impact of the release; 6. Measures taken to prevent the reoccurrence of any prohibited discharge; and 7. Measures taken to address any evidence identified as a result of an inspection required under Part II F. By initialing a SWPPP modification below, you are making the certification found in Part III K of the Permit. Start Date/ Action and Location Initials End Date Action and Location Start Date / Initial End Date