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WPO202000003 VSMP - SWPPP 2020-06-29
COUNTY OF ALBEMARLE q� Department of Community Development o i 401 McIntire Road, North Vying Charlottesville, Virginia 229024596 Tel. (434) 296-5832 • Fax (434) 9724126 Stormwater Pollution Prevention Plan (SWPPP) Project Name: WP02020-00003 - 2511 Avinity Drive Address: 2511 Avinity Dr Charlottesville, VA 22902 TM 90 Parcel 35L Prepared by: Shimp Engineering P.C. Prepared for: James Rogers Moss SWPPP Preparation Date: 04/24/2020 APPROVED by the Albemarle County Community2eevel ment Department Date 661/ UU ����• 1ymoll (This document is to be made Publicly available according to 9VAC25-880-70, Part II, section D) Issued — 10/2014 Stormwater Pollution Prevention flan (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 b. 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 v 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 1. Registration statement Issued 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY FOR OFFICE USE ONLY GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM ID Number: CONSTRUCTION ACTIVITIES (VAR10) Technical Criteria: IIB ❑ IIC ❑ REGISTRATION STATEMENT 2019 NEW ISSUANCE 0 MODIFICATION WITH ACREAGE INCREASE Q Existing Permit Coverage Number (if applicable, VAR10####): Section I. Operator/Rermittee Information. RE -ISSUANCE ❑ MODIFICATION WITHOUT ACREAGE INCREASE ❑ A. Construction Activity Operator (Permittee). The person or entity that is applying for permit coverage and will have operational control over construction activities to ensure compliance with the general permit. A person with signatory authority for this operator must sign the certification in Section VI. (per Part 111. K. of the VAR10 Permit). Construction Activity Operator Name: 2511 Avinity Dr Contact person: Jason Moss Address: 1799 Avon St City, State, Zip Code: Charlottesville, VA 22902 Phone Number: Primary Email: jasonrmoss75@gmail.com CC Email: keane@shimp-engineering.com B. Billing Information (leave blank if same as the Operator identified in Section 1. 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 IF] NO Rev 04/2019 PAGE 1 17 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 Section II. Construction Activity Location Information. Project site information. A. Include a site map showing the location of the existing or proposed land -disturbing activities, the limits of land disturbance, construction entrances and all water bodies receiving stormwater discharges from the site. B. Construction Activity Name: 2511 Avinity Dr Address: 2511 Avinitv Dr City and/or County and Zip Code: Charlottesville, VA 22902 Latitude and Longitude (6-digit, decimal degrees format): 37.994852°,-78.501143° C. Construction Activity Entrance Location (description, street address and/or latitude/longitude in decimal degrees): 37.994912°,-78.500652° Section Ill. Offsite Support Activity Location Information. List all offsite support activities to be included under this permit registration. Enter additional areas on a separate page. Offsite areas not included on this registration may need to obtain coverage under a separate VPDES permit. A. Offsite Activity Name: n/a Address: City and/or County and Zip Code: Latitude and Longitude (6-digit, decimal degrees format): B. Offsite Activity Entrance Location (description, street address and/or latitude/longitude in decimal degrees): Section IV. Site Information. A. Acreage totals for all land -disturbing activities to be included under this permit coverage. Report to the nearest one -hundredth of an acre. Total land area of development (including the entire area to be disturbed as approved in the Stormwater 1.12 ac Management Plan): Primary estimated area to be disturbed (portions with Erosion and Sediment Control Plan approval only): 1.12 ac Offsite estimated area to be disturbed (if applicable): C. Property Owner Status: D. Nature of the Construction Activity Description (i.e. commercial, industrial, residential, agricultural, environmental): E. Municipal Separate Storm Sewer System (MS4) name (if discharging to a MS4): B. Estimated Project Dates (MM/DD/YYYY) Start date: 04/01/2020 Completion date: 04/01/2021 FEDERAL ❑ STATE ❑ PUBLIC ❑ PRIVATE X residential Albemarle Rev 04/2019 PAGE 2 17 CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 F. is this construction activity part of a common plan of development or sale? YES ❑ NO G. 6" Order Hydrologic Unit Code (HUC) and Receiving Water Name(s). Attach a separate list if needed. HUC RECEIVING WATERBODY(S) 020802040402 1 Moores Creek Section V. Other Information. A. A stormwater pollution prevention plan (SWPPP) must be prepared in accordance with the requirements of the General VPDES Permit for Discharges of Starmwater from Construction Activities prior to submitting the Registration Statement. By signing the Registration Statement, the operator is certifying that the SW PPP has been prepared. B. Has an Erosion and Sediment Control Plan been submitted to the VESCP Authority for review? YES ❑x NO ❑ Erosion and Sediment Control Plan Approval Hate (far estimated area to be disturbed).: C. Has land disturbance has commenced? YES ❑ NO O. If this project is using approved Annual Standards and Specifications (AS&S), attach the completed AS&S Entity Form. AS&S Entity Name (if different from the Operator identified in Section II. A.); SEE THE FOLLOWING PAGE FOR SIGNATURE AND CERTIFICATION REQUIREMENTS AND INFORMATION Rev 04/2019 PAGE 3 17 CONSTRUCTION GENERAL PERMIT JVAR10) REGISTRATION STATEMENT 2019 Section VI. Certification. A person representing the operator as identified in Section 1. 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 fallowing two criteria: f i) the person has direct operational control over construction plans and specifications, including the ability to make modifications to those plans and specifications or f d) the person has day-to-day operational control of those activities at a project that are necessary to ensure compliance with a stormwoter 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 stormwoter pollution prevention plan or comply with other permit conditions). In the context of stormwoter discharges from Municipal Separate Storm Sewer Systems (M54s), operator means the operator of the regulated M54 system. 9VAC25-880-70. Part Ili. 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, secretory, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy -making or decision making functions for the corporation; or (ii) the manager of one or more manufacturing, production, or operating facilities, provided the manager is authorized to make management decisions that govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long-term compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for state permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures; b. For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or c. For a municipality, state, federal, or other public agency: by either a principal executive officer or ranking elected official. For purposes of this chapter, a principal executive officer of a public agency includes: (i) the chief executive officer of the agency or (h) 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." 1 Printed Name: C . 2 S e � _- ZSS Signature {signed in ink): '} Date: -- - -- - Section Vil. Submittal Instructions. Submit this form to the Virginia stormwater Management Program (VSMP) Authority. if the locality is the VSMP Authority, please send your Registration Statement submittal directly to the locality; do NOT send this form to DEQ. A list of local VSMP Authorities is available here: VSMP Authorities, If DEQ is the VSMP Authority, please send to: If the locality is the VSMP Authorityplease send to: Department of Environmental Quality Office of Storm+water Management Suite 1400 PO Box 1105 Richmond VA 23218 co n st ructi onto? @ d era. virai ni a .ttov address Rev 04/2019 PAGE 4 17 Section 2. Notice of general permit coverage (This notice is to be pasted near the main entrance according to 9VAC25-880-70, Part II, section C.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 3, Mature of activity THIS SITE IS A SINGLE-FAMILY MOSTLY GRASSED LOT BEING REDEVELOPED INTO 2 APARTMENT BUILDINGS WITH ASSOCIATED PARKING. THIS SITE SITS AT THE INTERSECTION OF AVON ST AND AVINITY DRIVE. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 4. Erosion and Sediment Control Plan. Issued 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County VSMP PLAN FOR LEGEND EXISTING NEW I ---310•-- - In g 31z .5 1p Xs7" 311.5 TC x 311 5 TW . 57°X 311 5 BW x 57"X GAS DESCRIPTION BENCHMARK SITE PROPERTY LINE ADJACENT PROPERTY LINE VACATED PROPERTY LINE BUILDING SETBACK PARKING SETBACK ACCESS EASEMENT PARKING COUNT DIMENIONS GRADING EASEMENT INDEX CONTOUR INTERVAL CONTOUR SPOT EVELVATION TOP OF CURB ELEVATION TOP OF WALL ELEVATION BOTTOM OF WALL ELEVATION RETAINING WALL STAIRS BUILDING ROAD -EDGE OF PAVEMENT ROAD- CENTERLINE ROAD -FRONT OF CURB ROAD BACK OF CURB CG•2 STANDARD 6' CURB CG•G STANDARD 9' CURB AND GUTTER CG-12 STANDARD ACCESS RAMP SIDEWALK BIKE PARKING PARKING SURFACE CROSSWALK HANDICAP ACCESSIBLE AISLE HANDICAP PARKING L�=J CONCRETEJPAVEMENTSIDEWALK 0 RIPRAP 0 ASPHALT O GRASS EC-3 MATTING EC-2 MATTING WETLAND TREELINE - X - FENCE STREAM UTILITY EASEMENT -t;- UTILITY POLE { LIGHT POLE OVERHEAD UTILITY i7f OVERHEAD UTILITY GUY 0 MANHOLE STORM LINE -/�RD - ROOF DRAIN V --- ( vt DRAIN INLET DRAINAGE EASEMENT STORM DRAINAGE EASEMENT - S - SEWER LINE SANITARY EASEMENT - W WATERLINE WATER METER WATER VALVE AND BOX O FIRE HYDRANT WATER EASEMENT - GAS - GAS LINE GENERAL CONSTRUCTION NOTES I. Prior m any consaruco--I- any exlsung ngni-of way =ncluamg oc inection to any exlsting road, a permit Shall be abteulad from the Virginia Department of Transit {VDOTY This plan as drawn may not accurately hefted the requirements of the panaaLWhere any discrepancies occur the requirenranm of the permit shall govem. 2 Adl malerlaAs and construction methods shall cmfwm to the current specifications and siandwils of VDOT unoosa otherwise no ed. 3. Elusion and miltedim control measures Shall be provided In accordance wish the approved arosdon control plan end Sheet be Inslallad pew to any Gearing, Qrading or other crostraeilon. 4. All Stapes and disturbed areas are to be feNGzed. seeded and mulched. 5. The maximum Allowalole slope Is 2:1 {hanzentle;vBrllcall, Whore reaSanably oblainahfe, lesser stapes of 3:1 pr batter are to be achahred. 6. Pavad,'dp-rap or stabilization aril lined ditch they Isla required wlsan in the opinion of the County Engineer or designee It is deemed necessary in order to stebdrze a drainage charcoal. 7. All traffic control signs shall conform with the Virginia Manual for Uniform Tmffrc Control Devices. 8. Unless od rewlea noted all concrete pipe shall be reinforced cmcrate pipe - Class III. 9 All excavation for underground pipe Installation must comply will-, OSHA Standards for the Construction Industry (29 CFR Part 1926), NOTES PER ZMA201600022 1; Landscapng and Screening m side shall meal all requlremanls of Section 32.7.9 of the Albemarle 0DWly Zorbng Didinanw. 21 Parking shall meet the mqulreme nes of Section 4.12 at term Albemarle County Zoning Ordinance. 3) Slotmwater management facilities shall be located under the parking area. Slormwater facilities shall nor be located Inland contributing to the ""I'd cpan apace par Sac. 19.6.1 of the Albemarle Comty Zoning Ordinance. Exact location and design of Slormwatm menagern"I faclllSles shall he dale osi t1uri� see total nernew. 4h Build ng setbacks for this appllca0on shall be as shaven on this Most. Setbacks m Not. 6] may be m ditd to aaororeodata landscaping. 53 Bulldktg heghire shall be lauded to 3 Stories. 6) Setbacks: Front: 15' Side adjacml to PRO zone; 5' Side adjacent to low denarty residential: 10' Rear: 20 7) 20%of the units bWh wild be designated as affordable fa'a period of 10 years from bra date of issuance of certificate of m orpar y. The urn will rent e1 a real see by HUD-publeshlad Fair Market Rents, making the units affodehas to those warming up to a0% of the o area edlan Income. The property mnar share maintain records docunwAng the household Income of the oacuparrta of the affordable units: and upon request by the County, the praparty owner shall provide the County wHh these retards 8) Large shade trees required to meet landscaping requirements par Seam 32-7.9.5 of the Albemarle County Zoning Ordinance shall be planted outside of the electrical utility essernant located al %a front of the property. 9) If the owners of tax map parcels 91A-57 and 91A-A would prefer landscape screening in tleu of the 8 foot proposed fence. than TMP 90-35L shall provide landscape screening in accordance Men the Zoning Ordihanca. If the existing fence, m lax mop parcel 91 A.A is removed, the owner or o ,nerihile entity (the "owneel of TMP BO-3611. shall construct a lence on TMP 90-35L to provide Screening in addition to the landscaping. The fence shall be a minimum of Tin height m the eastern side 0 the parking lot and the southern most portion of the fence shall he a solid material. The owner Sheet construct the new fence within 90 days of removal of the Nil" on 91A-A. GENERAL CONSTRUCTION NOTES FOR EROSION AND SEDIMENT CONTROL PLANS I The plan approving sutryoMy must be hotifi done walkprior to the pre-canatruction conference, one week prim to the corrknencement of land disturbing adlwlty, and one weak prior to IM final Inspection. 2. As, emaim and aedmeM control measures. wig be constructed and mainleared according b minimum standards and apectncafrgn3 o1 the Virginia Eroalm and Sedlment Contact Handbook and VeiglMe Reguta0ms VR. 625-02•W Erosion and Sediment Control Regulafiona. 3. Aet-I- and Seolmem control measures era to, be placed prior io a as the first step in clearing. 4. A copy of the approved erasion and sediment control plan shall be ma ntalned an the site at all lams. S. Prior lo commenccing lend disturbing actaviiies in areas oNer than indicated m these plans (ncludng, but not limited to. off-Slte bwrow a Waite areas). the cmbactor Mail submit a Supplementary erasion control plan to the tr mar for review and approval by the plan approving authoM.y. 6. The contrackar is responsible for installation of any additional eraaim control mearsumm, necessary to prevent arostan and sadlmennaran as determined by the plan approvng suliodty. 7. All dsturbed areas era to dmin to approved sediment central measures at all Icons during land disturbing actrvdies and during arm davelaprnant uma final sraaillzall n sc i-cl. a. Dumrlg d"Wering operations water will be pumped into an approved Nteringe device. 9. The contractor shall Inspect all mm a control measures periodically and after each mrloff producing rainfall event. Any necessary repairs or cleanup to malmison the e6activensaS of the match control devices area be made emnadhately. 10 AD AD fill material lo be taken from n approved. designated borrow area. 11. All waste materials shall be Isken to an approved wash area. Earth fill shsa be Inert malenals only, free of moors, stumps. wood, rubbish, and other debris. 12. 3--or wash areas are 10 be reclaimed -than 7 days of completim per Zoning Ordinance section 5.1.28. 13. As, Inert austeri 1. shall be transported 1. gompllanco -m sedlm 13.301 of tee Code of Albemarle.. 14. Borrow, on or waste activity rc olving ndustdal-type prover equipment shall be limited to the hours of 7:00am to 9 90pm. 15. Borrow, ti or warts activity 1,111, conducted in a aefe manner that maintain, Islsral Support, a alder 1,minima any hazard to persons, physical damage W adjacent land and Improvements, and damage to any public strait because o slides, sinking, or collapse 16. The developer shad reaerva the right 0Instate, maintain. remove or convert to parnanerd all-star management facilities Whare applicable all erosion conlrol measures recurred by cols plan regadless of the sale of any lot, unit, building or other portion of the property. 17. Temporary s mbill¢afian shah Ile temporary seeding and mulohlrg. Sending Is to be at 75 Ibslacre, and en It. months of September to Fobruary to consist a 50150 mix of Annual Ryegrass and Clereal Wntar Rye, W in March and April to consist of Annual Rye, or May through August M consist of German Millet. Sinew mulch is to be applied at 801bsl1 War. Alternatives are subject to approved by the County Bwoslm control Inspector. 1a. Permanent stabilizelim shall be lime and ferilf a, permarsent seadng, and mulch. Agricultural grade Ilmestme Shari be applied at 9010000gsf, nmrperated echo the lop 4-6 inches of som, Fertilizer Shall be applied at 10001b.1sore mind consist of a 10.20.10 nutrient mix. Permanent seeding shall be applied at I8011,.4ce and amaret.495% Kentucky, 31 or TEA Folsom and D-5% Perennial Ryegreas or Kentucky Bluegrass Shaw mulch is M he applied .1801bN100.1'. Allsmeli-ra are (subject to approwad by this County crown control nspwor. 19. wintenexe All measures are to be inspected weekly and after each rainfall. Any damage m clogging to structural measures IS to be repaired rmreedlately. SA turps are to he cleaned when SD%of the wetalwage volume Is fi9d with sediment. All sanded areas are to ten reseeded when necessaty to achieve a good stand of grass. SIIt Twice and diverslon dykes which are colledirg sediment to hear thou height must be cleaned and repaired Immediately. 20. All temporary Bros in and Sediment cenaral measures arc to be removed within 30 days of that site stabilization, when measures we ro longer needed, subjacl to approval by the County erosion control nspeclar. 21. This plan shall be void It me owner does not obtain a permit within 1 year of Insiders of approvals. (Winer Prdecelose Ordinance section 17-204G.1 22. Permanent vegetation shall be Installed m all derruded areas within nine (9) months after the date the land dulurbing reavlty commenced. (Water Pm WIm Ordnance sedlon I7.20TB) OWNERIDEVELOPER Cs Rogers Mws Avon Street Charlottoaville VA, 22902 ZONING PRO - Planned Residential DevefoPmenl ZMA201000022 approved m May 15, 2019 A special exception wee epp-.d with ZMA201 OU0022 to modify the minimum we of the PRD to slim this 0.91 acre ode Initial site plan SDP201900037 approved an 12102J2019 DISTRICT Sccltaville SOURCE OF TITLE DB 1942 P 341. DO 387 P $02 SOURCE OF BOUNDARY AND TOPOGRAPHY Boundary and Topographic Infamanun Is provided tyy commenweaM suin aymg, LLC. Supplemental boundary, planlmet-, aril topographic Information for adjoining percale Is dovenloaded inch, Albemarle Calmly CIS dole along with dig ored data from approved development plane for AvinAy Subdivision, BENCHMARK Datum for topography is NAVD 1988 FLOODZONE FEMA hood msurenca rate map (-unity parcel 51003c0407d}, off-A,a date February 4, 2005 shows, this properly within zone's" and no portion of the property within the 100-year flood plain. RESERVOIR WATERSHED This site I. -thin the M.-'s Creek Watershed. This sits Is not within a vat -had of re public water supply. LAND USE SCHEDULE EXISTING Aran AC % Building 1,010 SF 0-02 2.5 % Pavement 1S9 SR 0-DO 0,44% Sidewalksf connate 0 SF 0.00 0.0 % Impervious Area 1, 169 OF 0-03 2.9 % Turf W.470 SF 0'.08 97.1 % Woods 1) Sir D-00 0.0 % To al= 39.646 SF D91 10D % PROPOSED Area AC % Pavenxnl 14,6033F 0.34 $6.8% Building 8848 SF 0120 22.3 % Sid ... &sl COncmla 3 668 SF R 06 EQ % Impervious Area 17,119 OF 0,62 68.4 % Turf 12,628 SF 0.29 31.6 % Wanda D SF ,. 0.0 % Toi 39.645 SF 0.91 100.0 % Tolat Disturbance - '.12 Acres STEEP SLOPES Neither preserved slopes nor managed slopes are present on this property GENERAL NOTES 1. The inforrhalim and reala shown or Indicated with respect to the existing underground utilities at w contiguous to the Site are based on Information and data furnished 10 the owner and engineer by the ownas of such undergmmd facilities or others. The awalar or engneer shall not he responsible for me accuracy a completeness of such rnformalmn a data. The emtractor shall have full responsibility for conllmang the accuracy of the data, for locating all undergmwid utilities. for acord lallm of the work with owntere of such underground ukases during construction, for the safety end protection a'sereof and repairing any damage thereto resulting from the work. All of these condlillms shall be met at no additional cost to tree owner. The coh"crof shall contact "Miss Utilities' at Virginia al 1-800-552-70D1 prior to the start of work. 2. When working adje caM to existing structurea, pates, ate_, the oorbactor shelluse whatever methods that sere necessary to protect sinlctums from damage. Replaioemenl all damaged structures shall be at the contractors expense, 3. The cantrectur snag be raspmsible for protecting all exrsling .sae shucurea from damage and co-crmaling work so that the owner can make necessary arrangements to moalty7proleet eaal ing senKWres frrxa damages. 4. The centractor shelf be nesponshble for notifying all utility owners, adjacent land owners whose property may bs impacted and the Virgnia DSpartmeM of Transportation prior to completing any off -site work. 5. Contractor shall notify and coordinate all work Invo" existing uliNies with ulllhy ownelrs, at least 72 hours pit& to the start of conslmctim. 6. CoMractw shall Immediately report any discrepancies behovelen existing emdelmrs and contract docuaeents to the owner ard engineer 7. Contractor shall -lbroM for the approval of the owner auhmiaals of ail Specified materials listed in the plane, to indude shop drawings, manufacturers speclllration, and tars alwy repose the owners approved of sutrrmhats will be general and will not reseve the Ere contractor from the responsibility of adherence to the contred and for my error that may exist. S. All bare areas shall he scarified,rm lud, fsdhized, seeded and mulohad. 9. All tracts.. saplings, brush. arc.. shall be• removed Gorr within the right of way end the drainage easements. 10. Visibility of all mechanical equipment from the Entrance Cormfor shall be eliminated. 11. Retaining ,It, require separate building pennies. 12.All wafer earvico litres, sanlary laterals, and apdnkler Ilea must be visually Inspected by the Alhamerie County Building Iyepann*ant frnm the main M the atnrcture. PERMANENT DETENTION PIPE MAINTENANCE 1. Chisel clew ortrim- Seasonally 2. Cammemovc heavy oetivls Gum pipe - seasonally 3. Inspect Inash acnamn & naaa debris - yearly 4. Inspect culvert 4 dear debris - yearly' 5. Inspect entim detention pips system & remove sediment vuth vac -muck - every 2 years 2511 AVINITY DRIVE WPO 2020-00003 TAX MAP 90, PARCEL 35 ALBEMARLE COUNTY, VIRGINIA VICINITY MAP SCALE: 1'=1000' Map pmvidad by Gocglei can SHEET INDEX (13 TOTAL) C1 COVER SHEET C2 EXISTING BOUNDARY & ZONING C3 EXISTING CONDITIONS & DEMO C4 SITE PLAN SHIMP Cs GRADING PLAN ENGINEERING C6 UTILITY PLAN 9Np x lna - a0 £Cr Mf f5E r* CT SITE DETAILS Me HUH9 aatsun C8 STORM, WATER & SEWER PROFILES c: .t[ssadavidaso 6 e1 p91NPa rvEE9HeWY C9 EROSION CONTROL NARRATIVE C10 EROSION CONTROL PLAN - PHASE 1 „+ C11 EROSION CONTROL PLAN - PHASE 2 Gp,� C12 EROSION CONTROL PLAN - PHASE 3 ❑ C13 EROSION CONTROL DETAILS L . au 451aJ 'pp 7i �( q4 E`rYfi7MA1, 0 VSMP PLAN 2511 AVINITY DRIVE ALBEMARLE COUNTY, VIRGINIA SUBMISSIIDNI 2020.01.15 REVISION: 1) 2020.04.24 FILE NO. COVER 16.050 C1 I r I AVINITY DRIVE 11 6Q' PRIVATE RIGF+T—OF—W-AY J J I — — — — — ------ F— —_ z'_- ---- —-- --F . LOCATION 120' ACE EASEMENT TO BENEFIT TMP 90-35L (0.6. 5119 P 321) AL'UN PR4PERTIE5 LLO APPROX. LOCATION 27 TMP 091A0-OD-00-QOO AO ' ZONED PRO C I ACSA UTILITY EASE41EN1 (D.e. 4018 P. 511) OPEN SPACE - SOY! YMIc W.1 'Pall (OlLN , I 1 - 1 V� I fHI,NtiP - JAMES R6GERS MOSS TMP Og000-00-00-0351-0 y \ ENGINEERING ZONED PRD In x ! 49Hp F'L5N1lIH(1 - PorO,£C+M�5E4+f* (PER ZMA201600022)11 I nl r1 �- 3 ,gig„ 267 68' 5sloE SETe ACK — — — — ,\ ,r � niEHgH9T / I! CIYf40t16NLLE YA 3$!@ ` I j KAITLiN E NOY f TMP 091AO-00- Y 1 7 D0- 05700 ` - - _ 2[3NE0 PR0 LTM ram. SINGLE FAMILY a � � � ATT HED 16' EMERGENCY ACCE9s. LANDSCAPE, MAINTEN NF AND CONSTRUCYION �C-E. EASEMENT (D.E. 5142 P. 717) I ' - 1 r ! r , I 1 + E9W1N BARBOUR. TMP 09000-00-035GO ZONED R1 DB 541 PG 642 SINGLE FAMILY RESISENTIAL JERRY W 5R OR LAURA J SAS}5 IMP 09DOO-00-035AG 10NED R1 OB 541 PG F542 I I SINGLE FAMILY RESISENTIAL I 1 I d P I I r 1 I I � a -� +I 2i!' ACSA UTILITY EASEMENT (O.B. 5291 P. 597-366) � � I I I I r 2G 0 20 4,01 60 Stole.- 1-=20' 4H g—ti(l 11 NT"P1NPE—t— WY 41 7 I-+ JUSTIN M. SHFMP > No 45193 w S'L�fO,NAl- 4�, VShaP PLAN 2511 AVINITY DRIVE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2020.01.15 REVISION: 1) 2020-04.24 FILE NO, 16.050 EXISTING BOUNDARY & ZONING C 2 L— L— — —— 1 ------ + __— -- _ — I I I I I I JIL i JIL I I r -- �I ` / — — — — — — AVINITl' C7R9V 1 _ w —w —w —W — A"TE� I{ FfT1C�>�"b4iw —w —w — w —w —w —w — —w —w —w —w —w 1 EXISTING DRIVEWAY T19 BE REmovrD FROM N40iNING OPEN 51 ACE PARCEL \ \ 'VON PROR€RTIES TM \ P .1 AO-00-00-0 Op ZONED PRO �i'T l , + /I - \ OPEN SPACE i 6 -6B' 5' SIDE SETBAG< �ISTIhlG TREE E'XISTI NG TREE- i, I 1 Fse REMOV (TO BE REMO ) 1 c7 o f 1 SHIP EXISTING ENGINEERING Y' HOUSE (TO BE x c• I I + J REMOVEO •'•Y J+ + I I ) APPROX. LOCATION a(OF EX. 8' FENCE I +rTS I ON ADJOINING nf'' i l tonEsauE VA psoz usro�slxwtb;rvE�nHG WY OPEN SPACE ICAITLIN E J40'Y r - 4 l f fI _99'1 A4-00- - -� f_ / EXISTING Tf?FE �- -`- - 20NE01 PI r \rr,NL7'Fl. B REMOV€0] r SINGL€ AMILYr i +r /r. i x I +I j ? ATTA HEO Ir 777777 r, � Ir J e 2 9 'n - I +p I'' + l'1aC-XI%�/TIINC TFFI:-- 1 ��'r '+ �� 7_ : :g�c I- & c { ~' `- I r„ ', ''�' 7llSTiN M. 3HFMP W'0 Z 1 i ! (TO EIE REMOVFPj + I+ ---i__ -iy+ ; �I+ Lie. Nu. A319; 6 � II \ LJ i30 JI + } , V-TBACd( VSI.1P PLAN }�._aT_„� - -'�$----� - _ _ � '%- �~ rrrfff _ -- ---- --------- -------------- I `---- I If 2511 AVINITY - T---- - X r T ---. �pW1N BARBGUR. I- + DRIVE _` l I ZONED R1- I , i,--J--_-`-__- �Y - - + y f f DB 54 1Gf� ��- � SINGLE FAMILY RESY9ENTIAL; J z JERRY' N, SR OR LAURA J MOSSY ' -� z - ,-- } r ALBEMARLE COUNTY, VIRGINIA TMP 09OOD-00-035A0 SU6MISSIdN: y j i SINGLE FAMILx RE515EN TIAL REVISION: =' -- ` I - -� 1 I I ~ I + I I I I r L - -I - - - - - - - - FIL€ NO. I I I I I .I r� + l6.©5U I I EXISTING CONDITIONS I I _ & DEMO 20 f7 20 40 60 C3I. I I - scale ii-=2c�' | | | | / | Y� | | / / / | o | l | |~ / ' ' | | | | | | | ° �-- | \ | --- ' / ( | -_ | . / -� | / / IT-- -_- | | - --- -- _T' | -'- � �--- -x � -- -� L- � -� � | AVINITY DRIVE 60' PRIVATE RIGHT-OF-WAY I) nL, JEA-MENT �-___ - / —T--~ APARTMENT 101 ,3 STORIES 12 RESIDENIIAL UNITS s IMP ATTACHED 41 JV�24' CON ENCLOSURE j Ll --_ ' � / ' - / ,' / vmu p�w / -�a�� cEss�--- / / / 2511AVU���`Y ���---T-- wNBARBOUR . / � . ---- -_ -~��=~w°~ [�RJVK� | / -I^ r J- / 4,065 SF PER FLOOR STORIES PEOESTRIAN acNCIIES 171 RACK 58 �°° 0 I I _ I 7 � I +I 1 !I f r� 1� I - I I c*i N I L_ 0 I IL_� _ I ► ► V I � L --� y�� I ��1111111 _J I I , h I r- I i ^�AVINITY DRIVE - faD' PRIVATE RIGHT�OF-WAY Vf ppo r f / F�lll i ! 4 ■ Ila/A 11 \ 1 f� J, E-- � 1. ,1g � ,,� � f SHIMP -' ` V ti Il�� I� '` ENGINEERINGI- 4H e;'itif I / ate' f ` CNVi0t16NLLE YA#!@ 1116iH1�1NPErvEE9HG WY �1 p -� -. _ — a� _ I I L- -t I ' I I L —J 1 f I re NLTH rj, JUSTIN AA, 518 Li l.c. Nu. A3193 -,I � 777 , i , r r r � i - � _ •aq! Q� I11 +r ! Il �rt II ! r rrJl`� 104A1- 4, )rr jj 1 \ + + fl + ,-SLIP PLP.N 4 + !! 2511 AVINITY + DRIVE ' L ALBEMARLE COUNTY, VIRGINIA SUBMISSION: -- — 2020.01.15 --� =,� I I REVISION: ! "- - ---_{,`- 1) 2020.04.24 + I ! � I I FILE NO. + 15.050 I I - _-_ i GRADING PLAN I I r I 2G p 20 4C7 60 Scale1-=20- I - I + I i I i 4 � f` _ I _ I I I, 1 I I' �1 1 Illy I S1 1 I II I I I � I I I I I I I L — J I I I 14 1 ---- J E%- 20' ACSA UREL EASRG oe— e�� i r i I I i I I 1 � I I I I I I I I 1 2G 0 20 401 60 I ScaleI =20- SHIMP ENGINEERING 49Np ttANNINp - PoiOI£C+M9'+nSEMf*�� v2 E. HUH F +H e," 1lQ CNVi0t16NLLEY v. 11161H1p1NPE—E9—W M1LTH 41 � 7 -+ JUSTIN M. SHFMP 7 Lie. No 45183 w d4r. VShaP PLAN 2511 AVINITY DRIVE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2020.01.15 REVISION: 1) 2020.04.24 FILE NO, 16.050 UTILITY PLAN r sAe« 7x rs >e AVPT STANDARD M=11 STD 6" CURB (',7 jNM To Smk 4 e 'y �iu•i row otru 9„ Ya 9ECTgN A -A SECTdm �U-0 0 j ME- mi 1 __- I - — �r I" .. a TYPICAL PLACE]]&NT TPC TAL PLACEMENT AT PRERSECTKW p1AGliNAL VNMrION AT NTER OSSWN WTHN CRDSSNALK XK (WITH lffl`U TRI (WITH RNFFEN srnwl `�n'�C'.'•"'r'irv°rr'.'�:,.�'�°.r: w..a owx u.r ws•m r ra..o� �.. CC-12 DETECTABLE WARNING SURFACE TYPE A O'ERPENDICEA_AfR3 APPLICATION NprEs= RA - n•R ry .,t 6, - W COMBINATION 66" CUUEIII+� GUTTER ('a�GOMBINATION 6" CURB & GUTTER C7 Not To So* � I ���pjls L g A u - nIiamu ION A-F SECTM H-9 eeeeeel�eeR�eeeE)f eeeeeef�eeelF��)� CROSSWALK TYPICAL. PLACEMENT AT 11,1TERSECTION WTTHN CROSSWALK CGDETECTABLE WAKING SURFACE � TYPEPE $ (PARALLELS APPLICATION r 2"�CG-12 DETECTABLE WARNING SURFACE TYPE A APPLICATION r5' CG-12 DETECTABLE WARNING SURFACE TYPE B i,] Not To Scale (;] Not To Scale via.,N �ro eE s I I A+MINIM GEIERAL NpiES �aw� `�r ou rxw q ; y�-I GN AAr' iP K �•K91— PLM NOTES VIEW ENTRANCE me Tipm t•aK uws - - ��f�HwM�w4��[�M1,o � NTERSECTON NOTES r ,g�* Au SEGTgTI A ALLOWAELE EM -E BRADE CN-- � SECTION c-C u,l Alv�aA,C fx,!1'i_R,1• *R[.'.c nnr METHOD I SE IOW( " BEN7 IpOIMCCTpiM FOR STREET INTEAdSECTIpNS AN] CDMMERpAL ENTRANCES 3 VDOT: METHHD OF TREATMENT [ 7 NaP To Sc k A y� tl PLAN SE'CTKN A A iA aax , - r--R w„ J e.rn •.ns• I�R f. � wxti.f FRCNP vE'L"pVATICN aNR �� � SECrApH 6 -8 twna ..ox me w,. .�. ,.,x n•. ,• "w K- NOSE pErAis I I oErAt WHEN usEo uu a AOJACENT TO GARB WITHOUT WtTlIDUT GUTTER STANDARD CURB DROP INLET mm- fj- - ]p- PPE: MANAMW DEPTH IM - 6' �. el..nen v +xr�a,aa s STD CURB DROP INLET C] Not To Scale GENERAL NOTES, jms v.r"uwwn. • r� rtwc��r•6s m� �vx� � x+S •�31�cw l�i�rinam. urn I t=W'r -Aaw �y� y� p•��d • M [um cev�c P rt�w-.m xi ,v� -y"- - ♦♦M�.Qurt a�Ow,�•x�xa ���Ylnaa� %��tr�n�• l e ,Ef V nlr. WT _S_Eir+Lvlr %PARALLEL TYP[ C 4 PEI4'ENpICIRM OETAA. CTNVEiV.WAR "" CC-12 DETECTABLE WARNNG SURFACE .ENERAL NOTES �ZCG-12 DETLf--ABLE WARNING SURFACE GENERAL NOTES C7 Not TO Scale TYPICAL PI_ACEM AT INTERSECTION WTTN B[:PPER STRIP TYPE C PIRALLEL k PERPETOIC4.EM y APPiICCAAVON _ ve ! rlmCtlrL m x LAOs.Tm s16cx Al C0lEEfm fi YK !`. CG-12 DETECTABLE WARNING SURFACE TYPE C (PARALLEL 6 PERPENDICULAR) APPLICATION ,,, 8 CG-12 DETECTABLE WARNING SURFACE TYPE C C7 Nok To Seale • 4" - 3,000 P51. CONCRETE oo1°,aoo0 oano�abo. 4" - 'VDOT #21A BASESTDNE TiT TIT COMPACTED SUBGRADE MIN. CBR=6.0 TO BE FIELD VERIFIED TYPIFA'- _SIDEWALK SECTION 1] Not Tn I. -- — 2" OF Sid-9.5A SUPERPAVE 4DOT #21A BASESTONE COMPACTED SUBGRAOE MIN. CBR-6.0 TO BE FIELD VERIFIED ifl TYPICAL PAVEMENT SECTION FOR PARKING LOT C7 Net Ta Scale fb" - 3000 PSI CONL'RETE _ AT 2E OAYS OR STRONGER WIRE RfINFORCMG OR �4 8AR5 Ai IZ• O.C. ona6000QceooO o�op. M j— k=�T� 4" CiIMPACiEO VuOT g21A -t.l, iILLATI-� f.OMPACIcD SUMRAUE MIN, CBR=6.0 TO BE FIELD VERIFIED it Dumaster Pad Detail C] jw To She SHIMP ENGINEERING 1.9Np FL,SNNINq - PoiOI£C+M•rvtlSEMT*�� �� E HUH 9T +H e;' xtAf V:hVi0t16NLLE YA R^N AI61HI�xNPE�rvEE9HG.WY SAhL:TM r.K' 7 U JUSTIN M. SHIMP 7 Lee. No, 45183 w VSMP PLAN 2511 AVINITY DRIVE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2020.01.15 REVISION: 1) 2020.04.24 FILE NO. 15.050 SITE DETAILS C7 tkinlmaw 11 9.4'�T PR k .s , Z. AVAx YEThCU fJG TREAT.YFNT M MWFOLES V'�oF STANDARD METHOD OF 'SHAPING MANHOLE Y INLET INVERTS VR WI DETENTAN C£NSTRUCRCN NOTES, ANT: TIIESE NOTES ARE GENERAL INSTRUCTIONS FOR DESIGN AND CONSTRUCTION Or THIS DMINTION SYSIE41 MANUFAF,TURER'S GUIDELINES SHALL SUPERCEDE NOTES, F OISCREPANDES OCCUR CETAPEN THESE NOTES AND MANUFACTURER'S GUIDELINES, CONTACT DESIGN ENGINEER BJMEDIATELY, CONTRACTOR IS qWE FOR FOLLDVWG ALL MANUFACTURERS GUIDELINES. 1, MINIMUM TRENCH 'MOTH MUST ALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE. THE TRENCH WIDTH IS THE MINIMUM AMOUNT REOUIREO FOR PROPER INSTALLATION AND TO SUPPORT HORIZONTAL PRESSURE FROM THE PIPE. THE MANUFACTURER'S SUGGESTED MINIMUM VALUE 15- 1.51) + 12"- 2. MINIMUM EMBANMMENT NOTH (IN FEET) FOR INITIAL FILL ENVELOPE: 3:00 BUT NO LESS MAN D + 4'0'. 3. FOUNDATION SHALL BE WELL CONSOLIDATED h STAEtE- CAPABLE OF SUPPORTING FILL MATERIAL LOAD. 4. OPEN- GRADED GRANULAR REEDING MATERIAL SHALL BE A RELATIVELY LOOSE MATERIAL THAT IS RD'JGHLY SHAPED TO FIT THE BOTTCM OF THE PIPE. MIN. 6" IN DEPTH. SUGGESTED PARTICLE SI2E OF 1/2 CORRUGATION DEPTH 5. PIPE MATERIAL 16 GAGE ALUMINIZED PERFORATED CORRUGATED STEEL PIPE. V. 5'xt' CORRUGATIONS OR EO 6. HAUNCH ZONE MATERIAL SHALL BE HAND SHOVELED OR SHOVEL SLICED INTO PLACE TO ALLOW FOR PROPER COMPACTION. 7. HE RACVnLL MATERIAL SH ALL 8E A REE- RAINING, ANGULAR. WASHID-ST NE PER AA13HTO M d . USE 057 STONE FOR BACKFILL, MATERIAL SHALL, BE PLACED IN 12" MAXIMUM LIFTS AND SHALL BE WORKED INTO THE PIPE HAUNCHES BY MEAh15 OF SHOVEL 511CTNG REDOING, RJR -TAMPER, 'ABRATORY PLATE CR OTHER EFFECTIVE METHODS. COMP,ACTON IS CONSIDERED ADEQUATE WHEN A DENSITY EQUIVALENT TO W% STANDARD PROCTOR IS ACHIEVED OR WHEN NO FURTHER YIELDING OF THE MATERIAL IS OBSERVED LENDER THE COMPACTOR OR UNDER FOOT. THE PROJECT ENGINEER OR HIS REPRESENTATIVE MUST BE SATISFIED WITH THE LEVEL OF COMPACTION. INADEQUATE COMPACTION CAN LEAD TO EXCESSIVE PIPE DEFLECTIONS AND SETTLEMENT OF THE SOILS OVER THE SYSTEM, BACKFILL SHALL BE PLACED SUCH THAT THERE IS NO MORE THAN A TWO-UrT DIFFERENTIAL BETWEEN THE SIDES OF ANY PIPE IN THE SYSTEM AT ALL TIMES DURING THE BACKFILL PROCESS. BACKFILL SHALL BE ADVANCED ALONG THE LENGTH OF THE SYSTEM AT THE SAME RATE TO AVOID DIFFERENTIAL LOADING ON ANY PIPES IN THE SYSTEM, B INITIAL OPEN GRADED GRANULAR BACKFILL ABOVE PIPE MAY INCLUDE ROAD BASE MATERIAL CARD RIGID PAVEMENT IF APPLICABLE). 9. TOTAL HEIGHT OF COMPACTED COVER FOR CONVENTIONAL HIGHWAY LOADS 15 MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT DR TOP OF RIDD PAVEMENT 1O.FINAL BACKFILL MATERIAL SELECTION ABOVE THE SPECIFIED STONE LAYER IS COMPACTED SOL BACKFILL. MIN CBR=10, PER PARKING LOT PAVEMENT DESIGN SECTION IN THE PANTCPS CORNER SITE PLAN. 11.EEOTFXTILE SHALL BE USED AROUND TOP AND SIDES OF STONE BEDOING TO PREVENT SOIL MIGRATION. 12,FCR MULTIPLE BARREL INSTALLATIONS THE RECOMMENDED STANDARD SPACING BETWEEN PARALLEL PIPE RUNS SMALL BE PIPE DIAL./2. FOR PIPE DIAMETERS 72" AND LARGER, NO LESS THAN 36" SPACING PROJECT SPECIFIC SPACING IS 9 k CIA = 48'. 13.CONTRACTOR SHALL ENSURE DETENTOH PIPES ARE SOILTIGHT AT JOINTS BY UTILIZING GASKET AND HUGGER BANDS. (SEE CMP BAND NOTES) 1. DELIVERED BAND STYLE AND FASTENER TYPE MAY VARY BY FABRICATION PLANT. 2. JOINT IS TO BE ASSEMBLED PER AASHTO BRIDGE CONSTRUCTION SPECIFICATION SEC 26.4.2.4. 3. BAND MATERIAL AND GAGE TO BE SAME A5 RISER MATERIAL. 4, IF RISER HAS A HEIGHT OF COVER OF 10' OR MORE. USE A SLIP JOINT 5, BANDS ARE NORMALLY FURNISHED AS FOLLOWS: R.12" THRU W 1-PIECE 1, 54'+: 2-PIECES 6. ALL RISER JOINT COMPONENTS WILL BE FIELD ASSEMBLED. r, MANHOLE RSSERS IN APPUCATION5 WHERE TRA.fFIC LOADS APE IMPOSED REWIRE SPECIAL DESIGN CONSIDERATIONS. REFER TO RISER DETAIL. B. DIMENSIONS SUB.EC I' TO MANUFACTURING TOLERANCES. 9. PREMAR UFACTUREC STUB -CUTS FROM THE DETENTION PIPES SHALL BE PROVIDED FOR RISER CONNECTIONS ALL OTHER RISER JOINTS SHALL BE SOILTIGHT HUGGER RANDS OR EQUIVALENT $HALL BE USED TO ATTACH SECTIONS OF CUP PIPE SUP JOINTS SHALL BE USED TO ATFACH RISER SECTIONS WITH A TOTAL HEIGHT 310'. BAND MATERIALS $HALL W 16 GAGE ALUMINIZED STEEL OR EQUIVALENT PER MANUFACTURERS RECOMMENDATION, 1. BANDS SHALL BE SHAPED TO MATCH THE PIPE. 2. BANDS ARE NORMALLY FURNISHED AS FOLLOWS; 0.12" THRU 40": 1-PIECE c.gd'+- 2-PIECES 3. BAND FASTENERS 5HAAL BE ATTACHED WITH SPOT WELDS, RIVETS CIA HAND. WELDS 4 ALL CLIP IS REROLLED TO HAVE ANNULAR END CORRUGATIONS OF 2-2/3"xt/2" PER MANUFACTURE RECOMMENDATIOH- 5. DIMENSIDNS .ARE SUBJECT TO MANUFACTURING TOLERANCES- 6. O-RINC GASKETS SHALL BE USED FOR RISER CONNECTIONS. FLAT CASKETS SHALL BE USED FOR CAP DETENTION PIPE CONNECTIONS; Top WER-553,D3 4' 0 ORIFICE IRISH RMAI 14 Ga(E AWWINZED A+ STEEL WEIR PLATE MELD 11W IO i�1�t 1 Q -53Q0 TO INSIDE OF WP PIPES nV ELE-527.00 11 WEIR PLATE DETAIL C8 , SCALE= 15 5 I f 550 545 540 535 530 625 520 w I \STORM PROFILE Al-A2 5 L5 10+00 10+50 12 DETENTION PROFILE CB .SCALE: VERT. T =5., HORIZ. 1 -10' HaN NRrWATto erFu. nv �,'�'F J1F, :var -; ,�;aa^� � Tom' •>:x'� nraRa�tr9At,.seasffi ITANDARO STP MIP'I. U.11:11.I.1'' -' LIP DIMENSION S-1SCALE: VERT. 1"-10% 1•JR'Z "=30 DETENTION PLAN VIE'',"'i C8. SCALE: 1"=20' gm aR VN. D&W CMP HUGGER BAND DETAIL 11 SCALE: 1"=5' 550 ivl 1C 540 _ 535 5J5 -' 530 530 � -E _ 525 525. ..z z� n+E� Ce 550 565 560 535 530 Fm FL ,OP SECTION" IITnr. BAAI;LTRAP 3 CMP SLIP ,JOINT DETAIL VSCALE: 1•-5' OU 14- Trash R. V, HQ11 s 30% Opening A.- UO.: FrortY SnGtlon 6,. SIfTF a ORIFICE TRASH RACK DF 8 AL : 1 - - FCL.'AJVi P Dip WATER .. � MV-APPR9I- �xzR f IEW-GRABS �I I2 i-ia"wN-. - - - ---SSE 1Tf SEPAR'A TWA -- - FiTT�lY 525 _ s STORM PROFILE B1-B2 ('STORM PROFILE 01-C2 ci SCALE: VERY. 1"=10, HORIZ. 1'=30 GB SCALE: VERT i'=10'. HORIZ 1 =30 M ESMT 550 545 WD 535 �539 I1+W5 W-1 FRAJ-= FOR RISERS N ASPHALT PARMNC LOT. PROVIDE 5 DIAMETER CCNMETE SUPPORT SLAB 4' IHKM. JEDO PN. PR,YWLE MN i' GAP FROM 11P Cf CDNC 10 RIS R RY EEV. TO ALLOW 0SPOLT PAMW04 COVER. PROL9E 6' KK' Rik MA411 BADUTAER COHC. RMG. tiLD LADDER TO ACCESS RGER. 11WE IARER DOM TO CMP ENPDN INVENT CUR' RISER p.WAffACT OUP DETENTON RISER19 AUUMNI2EO 51EIIAIRSTRA91SCREEN. IWLD i0RACE OF OUP PIRES.�- (9 yACC'ESS RISER DETAIL �8 NOT TO SCALE aiIAEE - c�-- - 3 ' FTfP_31III f>ITSP� 7 STONE WRAP IRJI@TA!& W u6 �Ad'm'YftRR-F 1T7B.PJ� I -- STEEL .OR PLA1E I'' ! f l r.0'-�. I i. 1A O�-'4�j- PERFUF L i ! PROVIDE MIN t' i ,. L F :1I-' (TYP.) AL PIPE __! � - HNC " g # JANii I,OlClatlt -.., �= .AJr1W. SPEC -'fTN"Y .. /0.PaF�l§� UIITERDRAN 0 529:R INCLUDE 7' STCNf $UYA � 41PMDINIDFARRNFV-1RHHf.H : +37R5 DTl[M RTUR INV-52900W INY =526.00 . - =.TtiI�THN 52 . 2' PWERLAP 0. BO 11+00 10 TRASH SCREEN DETAIL e8 NOT TO SCALE SHIMP ENGINEERING I.AIq FY,ANNIIq - PROIEC+MANnGEN+Fn�r HJ E HUH gT +H e;' iYP V:HNi0t16NLLE YA R^N JII61Nx�HNPE�rvEERHG WY ���+rL,TFI TEAR. t7 41 S0 � 7 I-+ 7llSTIN M. 3HFMP 7 Lie. No 45183 k: SW'RJ,NAL t" VSI.1P PLAN 2511 AVINITY DRIVE 545 ALBEMARLE COUNTY, VIRGINIA - SUBMISSION: PROP, WIDE HALr-aT9., 2020.01.15 -Tip _ CP Ate. i40 - I I� i II I-e L _.: u I I LU-1 MN EOWEASW 0-SI99 m F IIIILIE'11,�L IR..;aIl�Tfl YI--IIf=1T" �MRu �LaE W I� REVISION: 1} 21120.'D4.24 = ' 40 AW ASTM D-5194� •-- F -• .....- TCP STONE 33T0 PA19Ali IRD NW OLIER FABRIC HOPE OEGWDIERANE. I •• •"�T 1' 157 5ttNF �, WRAP YE 1FILTER IN 0FILTER FABRM. 2' MIN i Ind 95�ot 7,tl - Y MN. 7rER1AF ,]� AU' W PERFORATED CYP 3.0' 1- (I* I�YR tw SFACINC (TYP,) Tw1 44�1ACafR C1J.'I-4 WELDED TO A ITS IRO NW i34 :-Yes• `S I FILTER,FAMIC FILE NO, MY 11 A57 $Tu1E sooTIQ�R ,SIONI.k29 'YL1- - 1U.0 C.©�0 Y'YXl OIER-AP. r LL!q K PLACED ON I. W FERT. PVT z' WN, OVERLAP STORM PROFILES & 1$3 TRENDI BOTTOM IINDERORAIN 0529D THOJJDE 3" STOLE 4uMP say, A _ DETAILS 13 DETENTION SECTION C8 SCALE: , .5 /\�\,V (/y(�� V PROJECT DESCRIPTION, GENERAL NOTES, EROSION & SEDIMENT CONTROL NOTES, AND SEQUENCE OF CONSTRUCTION PROJECT DESCRIP THE SITE CURRENTLY IS A GRASSED LOT, WITH A HOUSE AND A DRIVEWAY.THIS PROJECT PROPOSES TWO (2) RESIDENTIAL BUILDINGS THAT ARE 3 STORIES AND HAVE 12 VNI75 EACH, WITH REOUI RED PARKING AND A COURTYARD IN BETWEEN THE TWO BUILDINGS. THERE WILL BE A SILT FENCE AND A SEDIMENT TRAP TO BE CONSTRUCTED AS A PART OF THE EROSION PLAN. THE TOTAL AREA OF DISTURBANCE IS 1.12 ACRES. THE PROJECT INVOLVES THE FOLLOWING WORK ACTIVITIES: 1. THE CONTRACTOR SHALL OBTAIN AU. LOCAL AND STATE EROSION AND SEDIMENT P€RMITMNG REQUIREMENTS AND 'MAINTAIN ALL EROSION AND SEDIMENT CONTROLS !N ACCORDANCE WITH THE PERMIT REQUIREMENTS 2. tlNSTALLATION OF TEMPORARY AND PERMANENT EROSION AND SEDIMENT CONTROL MEASURES AS SHOWN ON THE PLAN AND DETAILS. 3. INSTALL LIMP AS SHOWN IN THIS PLAN, EXISTING SITE CONDITIONS THE SITE CURRENTLY IS A GRASSED LOT WITH A HOUSE IN THE CENTER OF THE LOT. THE SITE 15 BOUNDED BY AVINITY DRIVE ON THE NORTHEAST SIDE, AVOW STREET ON THE NORTHWEST SIDE, WHILE THE SOUTHEAST AND SOUTHWEST SIDES ARE SURROUNDED BY RE510ENTIAL HOMES. OFF-SI1E AREAS THERE ARE NO OFFSITE ACTIVITIES, THE SITE IS COMPRISED OF: I- MYERSVILLE SILT LOAM, 2 TO 7 PERCENT SLOPES, HSG: B 2- RABUN CLAY LOAM, 2 TO 7 PERCENT SLOPES. HSG,B 3- UDORTHENTS, LOAMY, 2 TO 25 PERCENT SLOPES. HSG:D THE SOUTHWEST AND SOUTHEAST CORNERS OF THE SITE ARE CRITICAL AREAS DUE TO PROXIMITY TO NEIGHBORING RESIDENCES, THEREFORE, THOSE CORNERS SHOULD HAVE DUST CONTROL AT ALL TIMES UNTIL THE PROJECT IS FINISHED TO LIMIT IMPACT TO THE NEIGHBORS. SAFETY FENCE WILL ONLY BE REQUIRED ALONG THE SOUTHWEST CORNER AS THERE IS EXISTING FENCING ALONG THE SOUTHEAST CORNER OF THE SITE. WENT CONTR UNLESS OTHERWISE INDICATED, ALL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO THE MINIMUM STANDARDS AND SPECIFICATIONS AS SET FORTH IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, LATEST EDITION THE MINIMUM STANDARDS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL REGULATIONS SHALL BE ADHF.REO TO UNLESS OTHERWISE WAI'JED OR APPROVED BY VARIANCE TEMPORARY T N - CMPORAR CONSTRUCTION ENTRANCE ICE) .,.OZ A STONE PAD WILL BE CONSTRUCTED AT THE ENTRANCE THE SITE TO PROMDE A MEANS OF REMOVING SEDIMENT FROM THE TIRES OF CONSTRUCTION VEHICLES LEAVING THE WORK SITE THE CONTRACTOR.. SHALL REMOVE ANY MUD FROM THE EXISTING ROAD SURFACE BY MEANS OF SWEEPING AND SHOVELING, SAFETY FENCE (SAF) - 3.01 A PROTECTIVE BARRIER INSTALLED TO PROHIBIT UNDESIRABLE USE OF AN EROSION CONTROL MEASURE. STD, AND SPEC. 3.D1 STORM DRAIN INLET PROTECTION (IP) - 3.07 THE INSTALLATION OF VARIOUS KINDS OF SEDIMENT TRAPPING MEASURES AROUND DROP INLETS OR CURB INLET STRUCTURES PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA; LIMITED TO DRAINAGE AREAS NOV EXCEEDING ONE ACRE, AND NOT INTENDED TO CONTROL LARGE, CONCENTRATED STORMWATER FLOWS, STD, AND SPEC. 3.07 CONSTRUCTION ROAD STABILIZATION (CRS) - 3.0-3 TEMPORARY TR I R'TION WITH STONE F A R A V STREETS. S B L 2 5 0 E 4 ACCESS 0 D$, SIJBDI SION $ EE S. PARKING AREAS, AND OTHER TRAFFIC AREAS IMMEDIATELY AFTER GRADING TO REDUCE EROSION CAUSED BY VEHICLES DURING WET WEATHER, AND TO PREVENT HAVING TO REGRADE PERMANENT ROADBEDS BETWEEN INITIALGRADINGAND FINAL STABILIZATION. SILT FENCE (SF) - 3.05 SILT FENCING WILL BE INSTALLED AS A FIRST STEP IN CONSTRUCTION ACTIVITIES: LOCATION AND DETAILS ARE SHOWN ON THE PLANS. TEMPORARY DIVERSION DIKE (DD) - 3.D9 A TEMPORARY DI VERSION DIKE SHALL BE USED TO BOTH DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPROTECTED DISTURBED AREAS TO A STABILIZED OUTLET AND TO DIVERT SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDNENT-TRAPPING FACILITY, LOCATION AND DETAILS ARE SHOWN ON THE PLANS. TEMPORARY SEDIMENT BASIN ISE) - 3.14 A TEMPORARY BARRIER OR DAM WITH CONTROLLED STORMWATER RELEASE STRUCTURE WHICH IS FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACCRO 33 A DRMNAGEWAY. IT IS USED TO DETAIN SECIMFNT-LADEN RUNOFF FROM DRAINAGE AREAS .3 ACRES OR GREATER FC* ENOUGH TIME TO ALLOW MOST OF THE SUSPENDED SOLIDS 10 SETTLE OUT, IT CAN BE CON5TRUCTED ONLY WHERE THERE IS SUFFICIENT SPACE AND 4PPROPRIATE TOPOGRAPHY. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS UNLESS DESIGNED AS A PERMANENT POND BY A QUALIFIED PROFESSIONAL DUST CONTROL (DC) - 3.39 DUST CONTROL MEASURES IN ACCORDANCE WITH STANDARD AND SPECIFICATION 3.39 SHALL BE IMPLEMENTED ONSITE TO PREVENT AIRBORNE MOVEMENT OF OUST. MEASURES INCLUDE IRRIGATION, MULCHING OR OTHER MEASURES AS OUTLINED IN THE SPECIFICATIONS. 1E10POR ARY SEDIMENT TRAP (SI) - 3.13 A SMALL PONDING AREA, FCP.MEO BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A STONE OUTLET ACROSS A DRAINAGE SWALE. TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS FOR ENOUGH TIME TO ALLOW MOST OF THE SUSPENDED SOLIDS TO SETTLE OUT. MAXIMUM EFFECTIVE LIFE IS 1B MONTHS. STD. AND SPEC. 3. 13. TEMPORARY SEEDING (IS) - 3.31 TEMPORARY SEEDING SHALL BE APPLIED TO ALL DENUDED AREAS WITHIN SEVEN (7) DAYS TO DENUDED AREAS THAT MAY OR MAY W07 BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 14 DAYS. TEMPORARY SEEDING SHALL BE APPLIED IN CONFORMANCE WITH STD. AND SPEC. 3.31. PERMANENT STABILs OUTLET PROTECTION - 318 THE INSTALLATION OF RIPRAP CHANNEL SECTIONS AND/GR 51TLLING BASINS BELOWSTORM DRAIN OUTLETS TO REDUCE ER05ION AND UNDER -CUTTING FROM SCOURING AT OUTLETS AND TO REDUCE FLOW VELOCITIES BEFORE STORMWATER ENTERS RECEIVING CHANNELS BELOW THESE OUTLETS. PERMANENT SEEDING (PS) - 3.32 A PERENNIAL VEGETATIVE COVERING SHALL BE ESTABLISHED ON DISTURBED AREAS WITHIN 7 DAYS OF BEING BROUGHT TO FINAL GRADE ON AREAS NOT OTHERWat PROTECTED. SELECTION OF THE SEED MIXTURE SHALL DEPEND ON THE TIME OF YEAR IT IS TO BE APPLIED ACCORDING TO THE PERMANENT SEED SCHEDULE A$ SHOWN ON THE DRAWING, SEEDED AREAS SHALL BE LIMED WHEN NECESSARY AT A RATE OF 2 TONS PER ACRES, AND FERTILIZED AT A RATE OF 1,000 LBS. PER ACRE OF 10-20-10 (10 LBS. PER 1,000 SQUARE FEET) OR EOUIVALEN T. MULCHING (MU) - 3.35 ALL SEEDED AREAS SHALL BE MULCHED WITH STRAW IMMEDIATELY FOLLOWING SEEDING OPERATIONS, STRAW MULCH SHALL BE APPLIED AT A RATE OF ING TONS PER ACRE. SOIL STABILIZATION BLANKETS AND MATTING - 3.36 SOIL STABILIZATION MATTING SHALL BE APPLIED IN THE CONVEYANCE AREAS OF THE DESIGNED DIVERSIONS TO HELP REDUCE VELOCITIES AND AID IN THE ESTABLISHMENT OF VEGETATION. A DETAIL SHOWING THE PROPER MATERIALS AND INSTALLATION IS SHOWN ON THE PLAN. 40T 1. THE INFORMATION AND DATA, SHOWN OR INDICATED WITH RESPECT TO THE EXISTING UNDERGROUND UTILITIES AT OR CONTIGUOUS TO THE SITE ARE BASED ON INFORMATION AND DATA FURNISHED TO THE OWNER AND ENGINEER BY THE OWNERS OF SUCH UNOEPGRCUND FACILITIES OR OTHERS THE OTHER OR ENGINEER SHALL NOT BE RESPONSIBLE FOR THE ACCURACY OR COMPLETENESS OF SUCH INFORMATION tM DATA. THE CONTRACTOR SHALL HAVE FULL RESPONSIBILITY FOR CONFIRMING THE ACCURACY OF THE DATA, FOR LOCATING ALL UNDERGROUND UTILITIES, FOR COORDINA HON OF THE WORK WITH OWNERS OF SUCH UNDERGROUND UTILITIES DURING CONSTRUCTION, FOR THE SAFETY AND PRO TECTIGN THEREOF AND REPAIRING ANY DAMAGE THERETO RESULTING FROM THE WORK. ALL OF THESE CONDITIONS SHALL BE MET AT NO ADCHTIONAL COST TO THE OWNER THE CONTRACTOR SHALL CONTACT "MISS UTILITIES' OF VIRGINIA AT 1-1300-552-7001 PRIOR TO THE START OF WORK. 2. THEN WORKING ADJACENT TO EXISTING STRUCTURES, POLES, ETC., THE CONTRACTOR SHALL USE WHATEVER METHODS THAT ARE NECESSARY TO PROTECT STRUCTLIRES FROM DAMAGE. REPLACEMENT OF DAMAGED STRUCTURES SHALL BE AT THE CONTRACTOR'S EXPENSE. 3. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROTECTING ALL EXISTING SITE STRUCTURES FROM DAMAGE AND C00ROtNATING WORK SO THAT AWE OWNER CAN MAKE NECESSARY ARRANGEMENTS TO MODIFY/PROTECT EXISTING. STRUCTURES FROM DAMAGES. 4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR NOTIFYNNG ALL UTILITY OWNERS. ADJACENT LAND OTHERS WHOSE PROPERTY MAY BE IMPACTED AND THE VIRGINIA DEPARTMENT OF TRANSPORTATION PRIOR TO COMPLETING ANY OFF -SITE WORK, 5. CONTRACTOR SHALL NOTIFY AND COORDINATE ALL WORK INVOLVING EXISTING UTILITIES WITH UTILITY OWNERS, AT LEAST 72 HOURS PRIOR TO THE i S ART OF CONSTRUCTION. I" v REPORT DISCREPANCIES 6. CONTRACTOR SHILL D CONTRACT EL RE CR ANY TO THE. CES BETWEEN TEXT STING CONDITIONS AND CONTRACT DOCUMENTS TO THE OTHER AND ENGINEER, e. CONTRACTOR SHALL ADJUST ALL APPURTENANCES AS REWIRED TO MATCH NEW GRADES. THE EXACT LOCATrt:N OF APPURTENANCES SHALL BE COORDINATED WITH THE OWNER. 9. CONTRACTOR SHALL SUBMIT FOR 'THE APPROVAL OF THE OWNER SUBMITTALS CF ALL SPECIFIED MATERIALS LISTED IN THE PLANS, TO INCLUDE SHOP DRAWINGS, MANUFACTURER'S SPECIFICATIONS AND LABORATORY REPORTS, THE DWNER'S APPROVAL OF SUBMITTALS WILL BE GENERAL AND WILL NOT RELIEVE THE THE CONTRACTOR FROM THE RESPONSIBILITY OF ADHERENCE TO THE CONTRACT AND FOR ANY ERROR THAT MAY EXIST. EROSION & SEDIMENT CONTROL NOTES: 1. ALL VEGETATIVE AND STRUCTURAL EROSION & SEDIMENT CONTROL I, E&S) PRACTICES WILL BE CONSTRUCTED AND MAIN tAINEO IN ACCORDANCE WITH THE MINIMUM SPECIFICATIONS OF THE NRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATION 9VAC25-840-40, 2, THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO COMMENCEMENT OF LAND DI5TUR8rNG ACTIVITY AND ONE WEEK PRIOR T11 FINAL INSPECTION. THIS REQUIREMENT CAN BE WAIVED AT THE DISCRETION OF THE PLAN APPROVING AUTHORITY, 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO DR AS THE FIRST STEP IN CLEARING. 4. A COPY O THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ONSITE AT ALL TIMES. 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTRY EROSION AND SEDIMENT CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN REVIEWING AUTHORTY. 4. THE CONTRACTOR IS RESPONSIBLE FOR INS ALLATION OF ANY ADDITIONAL EROSION AND SEDIMENT CONTROL MEASURES NECESSARY TO PREVENT EROSION! AND SEDIMENTATION AS DETERMINED BY THE PLAN REVIEWING AUTHORITY. 7 ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVIES AND DURING SITE DEVELOPMENT UNTIL FINAL STA13ALIZATION 15 ACHEIVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9.THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALY AND AFTER EACH RUN-OFF PRODUCING STGRM EVENT. ANY NECESSARY REPARIS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10, INSTALL AND MAINTAIN CONSTRUCTION ENTRANCES FOR ENTIRE PROJECT AT ALL LOCATIONS WHERE VEHICLES ENTER/LEAVE THE WORK AREA AND WHERE SOIL IS STOCKPILED. 11. MAINTAIN ALL EROSION AND SEDIMENT CONTROL UNTIL THE COMPLETION OF FINAL STABILIZATION. UNLESS OTHERWISE NOTED ON THE PLANS REMOVE ALL EROSION & SEDIMENT CONTROLS FOLLOWING THE ESTABLISHMENT OF A PERMANENT' VEGETATIVE COVER AND COMPLETION OF FINAL STABILIZATION. STORMWATER MANAGEMENT: RUNOFF WAUTY SHALL BE ADDRESSED THROUGH THE PURCHASE OF 1.14 LBS NUTRIENT CREDITS TO SATISFY THE NUTRIENT LOAD FROM THE VRRM REDEVELOPMENT SPREADSHEET RUNOFF QUANTITY WILL BE ADDRESSED BY A DETENTION PIPE WHICH OUTLETS INTO AN EXISTING CHANNEL AT FLOW RATES THAT COMPLY WITH THE ENERGY BALANCE EQUATION. T .A.-' AU"� - N- F ;;TRUCTION TFfE FOLLOWNG ARf THE PROPOSED MANAGEMENT STRATEGIES AND DETAILED SEQUENCE OF CONSTRUCTION. REQUIRED PERMITS MUST BE IN -HAND BEFORE WORK BEGIN$ PHASE I 1. INSTALL CONSTRUCTION ENTRANCE AND SEDIMENT TRAP. 2. INSTALL SILT FENCE 3. INSTALL DIVERSION$ PHASE 2 T, CONTACT THE ENGINEER AND ALBERMALE COUNTY FOR INSPECTION AND APPROVAL OF ALL E&S CONTROL MEASURES. PHASE 3 1. UPON APPROVAL OF E&S CONTROL MEASURES, BEGIN WHOLESALE CLEARING, GRADING, AND STOCKPILING. 2. INSTALL INLET PROTECTION. 3. BEGIN CONSTRUCTING BUILDING PADS AS SHOWN. ON THE SITE DEVELOPMENT PLAN. 4. MAINTAIN SILT FENCE. DIVERSIONS. AND CONSTRUCTION ENTRANCE. PHASE 4 L ESTABLISH AND MAINTAIN PERMANENT STABILZATION, INCLUDING VEGETATION OF ALL SLOPES AND GRASSED AREAS. REMOVE INLET PROTECTION, 2. CLEAN OUT ANY SILT AND DEBRIS FROM DETENTION PIPES THE FOLLOWING CONSTRUCTION MAINTENANCE PRACTICES SHALL BE FOLLOWED AT THE SITE. I. ALL E&S CONTROL MEASURES WILL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAIN EVENT. ALL DEFICIENCIES IDENTIFIED DURING THESE INSPECTIONS SHALL BE CORRECTED AS SOON AS PRACTICABLE. 2. THE SILT FENCE BARRIER. SHALL BE REGULARLY CHEOkED FOR UNDERMINING DETERIORATION OR SIGN FICANT EROSION. SEDIMENT SHALL BE REMOVED AFTER EACH STORM EVENT AND WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHES HALF THE HEIGHT OF THE CONTROL. 3. THE CONTRACTOR IS RESPONSIBLE FOR ADHERING TO ALL MAINTENANCE RE(A.IIREMEN TS SET fORYH IN THE CURRENT EDI TIOIN OF THE VIRGINIA SEDIMENT AND FRO$ION CONTROL MANUAL, OTHER APPLICABLE COMMONWEALTH OF MRGINIA REGULATIONS AND THE PROJECT SPECIFICATIONS 4. ALL SEEDED AREAS WILL BE REGULARLY CHECKED TO ENSURE THAT A GOOD STAND OF GRASS IS MAINTAINED. 5. AREAS WITH RIP -RAP SHOULD RE REGULARLY INSPECTED TO DETERMINE IF HIGH FLOWS HAVE DAMAGED THESE CONTROLS OR CAUSED EXCESSIVE SEDIMENT DEPOSITION. ALL AREAS SHALL BE MAINTAINED IN ACCORDANCE WITH THE REQUIREMENTS OF THIS E&5 CONTROL PLAN. ENNRONMENHTALE CONTROLS I. CONTRACTOR SHALL PROVIDE AND MAINTAIN ALL ENVIRONMENTAL CONTROL MEASURES $0 AS TO COMPL', WITH LOCAL ORDINANCES, STATE AND FEDERAL LAWS AND REGULATIONS APPLICABLE TO WATER POLLUTION IN WATERS OF THE STATE AND IN INTERSTATE WATERS. 2.CONTRACTOR SHALL MINIMIZE THE POTENTIAL FOR AIR POLLUTION BY THE USE OF EMISSION CONTROL EQUIPMENT ON CONTRACTOR OPERATED EQUIPMENT, SHUT -DOWN CF MOTORIZED EQUIPMENT WHEN NOT IN USE, AND ACTIVELY CONTROLLING DUST EM45SIONS THROUGHOUT THE PROJECT. 3. ANY WASTE DISCOVERED DURING THE PROJECT SHALL NOT BE MOVED WITH OUT PRIOR AUTHORIZATION OF THE OWNER AND BE DIRECT -LOADED INTO COVERED ROLL -OFF CONTAINERS FOR TEMPORARY STORAGE PRIOR TO DISPOSAL IN A PERMITTED LANDFILL. ERCISIQN III SEDIMENT CQNNTRQL PERMITTING 1, CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL LOCAL AND STATE EROSION AND SEDIMENT CONTROL PERMITS AND MAINTAINING ALL EROSION AND SEDIMENT CONTROLS IN ACCORDANCE NTH. THE PERMIT REQUIREMENTS. p,�gy),ANENT DETENTI Q[{, PIPE MAINTENANCE L CHEf:K/GEAR ORIFICE - SEASONALLY 2. CLEAN/REMOVE HEAV'r DEBRIS FROM PIPE - SEASONALLY 3. INSPECT TRASH SCREEN & CLEAR DEBRIS - YEARLY 4. INSPECT CULVERT 11 CLEAR DEBRIS - YEARLY 5. INSPECT ENTIRE DETENTION PIPE SYSTEM & REMOVE SEDIMENT WITH VAC -TRUCK - EVERY 2 '-EARS IAI NIMUM STANDARDS iMS1: All .ppliaobto V.rginia Erasion and Sediment Control Regulaticne and Minimum Standard. shall be adhered to during all phases at cans. uelicn. These metude, but arc at limited to the fallowing: I, STABILIZATION OF DENUDED AREAS- Penman-1, or temporary .oil stablllzation shall be applied to bare o within seven days after final grade Is reached an any portion, of the site. Temporary sail stabilization shall be applied within seven days 10 denuded woos that may not be at final grade, but will remain dormant or undisturbed for ranger thon 7 days. Permanent stabilization Sholl be applied at areas that era ,a be left coo noni for more than 30 days. 2. STABILIZATION OF SOIL STOCKPILES'. During C.dnstrL,Ugn of the pra}eet, salt stoekpll.a sh.11 be stabilized or protected with sediment bappma measures. The applicant is reap.rathlo for temporary prplecllan and pemm�ent slIbIllzanan of oll loll stockpiles on site as well US soil lot- 1009hy lrunsporta7 Iram the prefect sit.. 3.PERMANENT VEGETATIVE COVER A permanent vegetative cover shall be estoollehetl an denuded areas not m otherwise permanently stabal-c! Peranent vegelabono n shall t be considered established until d ground cover is a.hieve that, in the opinion If the city In specter, Is unifam and malu enough to sur,lvt to inhibit erosion 4.1MMING & STABILIZATION OF SILT TRAPPING MEASURES: Sediment basins and traps, perrneter daces, sediment barriers and other measures intended to trap sediment shall be constructed as A fin{ step In any land disturbing activity and shall be made functional before upalape land di.t.rbance takes place 5. STABIUZATON OF EARTHEN STRUCTURES: Stabalzatian m s snarl be applied to earthen structures such aS dams, dikes and averalons Immediately after Installation. 6.SEDIMENT TRAPS AND BASINS: A sediment basin shall control surface runoff from disturbed areas that is wmprlsed of flaw from drainage areas greater than or equal to three acres. TN sediment basin shall be deal9ned and constructed to accommodate the an[cpol.ed sediment lood-j for the I-d d.turbng activty. The outfoll device err ty hem device shall joke :n to accwnl the tolpl' drainage area Mowing through the disturbed area to be served by the basin, 7.CUT AND FILL SLOPES: Cut and fill slopes mall be designed and constructed In a manner that will la n mlge erason Slopes that are found to be erod,nq a cessively within a a yw]r or permanent stabilization stall be provided wllh additional slaps stabilizing maaeures until The Prolblem is .orrocted B.CONCENTRATED RUN-OFF DOWN CUT OR FILL SLOPES: Concentrated runoff shall not flow down cut or RI slopes unless contalned within on adequate temporary or permarienl channel, flume. w slope drain structure, 9. WATER SEEPS FROM A SLOPE PACE Whenever water seeps from a slope face, adequate drainage or other protection shall be provided. IO.STCRM SEWER INLET PROTECTION All storm s inlets that a op made erobte during construction shall be protected so thoL sediment -laden water cannot enter the conveyance system 9 s tem without first bean filtered or oHerwisetreated to remove sediment II. STABILIZATION OF OUTLETS Bef- newly conslructed t rmwater conveyance ch.-I. are made operational adequate outlet protection and any required temporary or permanent channel lining shall be installed in both the conveyance channal and receiving channel. I2.WORK. IN LIVE WATERCOURSES: When work In a Ilve watercourse is pertwmed, precoOloris shall be Taken to minimize a croachmenr cpnir.1 -di-rt trn port and stobilize the work ore. to the greatest ertanl passble during construction Nanerodible material shall be used for the constnictian of causeways and cofferdams. Earthen fill may be used for these structures If armored by nonerodibie Cavor materiale. 13.CROSSNG A. LIVE WATERCOURSE' When a live wofereolr.e must be crossed by can 7locton vehicles more thon twice In any sla month period atemporary stream crossing constructed of nonerodible materials shall be provided. 14.APPLICABLE REGULATIONS: All applicable federal, state and local regulations portaining to working in or -rising live watercourses shall be met 15.STAENUZATION OF BED AND BANKS The bed andbanks an, a watercourse shall be stabilized Gnmedlately after work In the alercou Ise s completed MUNDERGROUND UTIUTIES: Underground utilities shall be installed in accwdance with the fallowing standards in addition to other criteria - *.No more than 500 Ilneor feet of trench may be opened at one, time. b.E.scavated material shall be Placed an the uphill side of trdnohes c.Eflluent for dewatering operations shall be filtered or passed through .pp'c"d sediment trapping device, or both, and discharged In a manner Shut does not adversely affect Flowing streams err utfsile property, d.Mot.rial used for b.10illing trenches shall be properly compacted in order to minimize erosion and promote stobdizdtion. e. Restabilization shall be occomptlshed In accordance with these regulations. I. Applicobie safely regulotions ahall be Compiled with. 17.CONSIRU"ONI ACCESS ROUTES: Where construction vehicle access routes fnter54Ct paved public roads, Provisions shall be made to minimize the transport of sediment by vehicular tracking onto paved surlocea. Where sediment Is transported an to a pualic rand surf..., the rggd shall be cleaned thoroughly at the end of eoch coy. Sediment sholl be ramaved by shoveling o--ping and transported to a sedlm.nt control disp.sol wee Streetwashing shill be m allowed only after sediment ie .ved in this m This provvsion shall apply to Individual lass. as well roato larger land disturbing a bAtles. I B.TEMPCRARY EdcS CONTROL MEASURE REMOVAL: A T temporary erosion and sediment. Control measare2 shalt be removed within 30 days of or Final ails akabilizotiw, a otter temporary m ur ea we o longer needed, cent ass otherwise authorized by the Local program authority. Trapped sediment and the disturbed soil areas resulting from the dlepasihion of temporary measures shall be permanently stabilized to prevent further erasian and sediment. 19,ADEDUACY OF RECEIVING CHANNELS: Properties and waterways downstream from the development site shall be protected frun sediment deposition, erosion and damage, due to increases in Volume. Velocity and peak flow rates of stormwater runoff for the slated frequency at.rm of 24-hour duraf ion SHIMP ENGINEERING L9Ne RL,9NNINa - .ROI£C+ M9IIa5Ernr*� ei2 E. HUH 91 +H t:' 1W, c"WI.t16NLLEYA4. A weels+wPI-loNaWY t� Lp LIJ I S fr Li . N 45183 'Pya l�IJ Q4 R E`rYJi7MA1, W VShaP PLAN 2511 AVINITY DRIVE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2020.01.15 REVISION: 1) 2020,04.24 FILE NO. EROSION CONTROL NARRATIVE 15.050 e 1 II I f L J IL—I�—JIL J L III ---'I: I --- IfA�•. L. J f A + f � i czl- _w —w-w —ii — I _w —w _w — P w w! w —w w �.w .,w � 3 w � 1p i 1 4 5 6 r NS B 13 bC? LEX. GRAEWAY ys. 3 h 4 r Il Q- IN If TER �iC AI 1C� 4 , 5 6 �j 710 P' 1 MSG B 1 1 13 U 1 ` L y PS TS � s � 88 CUT: DIVERSION IR BERM INTO TOP 1 EX. HOUSE NSG 'D ' OF SEDIMENT TRAP J TER ELF. 53Q.5— ► SHIMP ENGINEERING __y 1.9Np ttANNINfJ - PoiOI£C+MaE✓aSEuli n r{7 w P 8,7 I' + If V:hVi0t16NLLE YA R^N 1116M1�1NPE�rvEE9HG WY 1 �I SST ' 8 / �, V >�' If �� �++ fff! +r 7 C17 x \ + r f SF A �+ 2 3 iI J r~~ 273 x + ! - �. - FAWN+ 1 � - .. _ - _£_�= i `': "•, +~, oc 2 i; L ❑a a-N 4583m� -- r---- _ - `-'------------ _ - ! , �4, `-- --- r �i - -_ _ x Ir \ y �ESYA7M.41, % I L -- --- 7 —_�- ! --- VSMP PLAN 2511 AVINITY SOIL EROSION & SEDIMENT CONTROL SYMBOLS DRIVE LEGEND KEY ALBEMARLE COUNTY, VIRGINIA ri ® SOIL TYPE BOUNDARY SUBMISSION: (NOlt ALL SOILS HSG B) 3.02 CONSTRUCTION ENTRANCE CE —.� OVERLANDFLOW DIRECTION 2020.01.15 x x e x x 3.05 SILT FENCE SF REVISION: 13 3.01 SAFETY FENCE OF 2112004.24 NOTE: T11E INSPECTOR MAY REQUIRE ADDITIONAL 3.09 TEMPORARY DIVERSION DIKE DOD DEPENDING ON SITE CONDITIONS. [DRAWN T SCALE] 3.13 SEDIMENT TRAP S) 3-07 INLET PROTECTION IP 3.18 OUTLET PROTECTION cop) FILE NO. -�'--�� 3.31 TEMPORARY SEEDING (TTDS 16.050 3.32 PERMANENT SEEDING Ps EROSION CONTROL hiU 3,35 MULCH 1U PLAN -PHASE 1 3.39 DUST CONTROL 20 o 20 ao nu LIMITS OF DISTURBANCE LO c l o Scale; 1"=20' \ \ e 1 —JII I IL—I�IL J i --- If•/• T� Ji I— / _ — J f A J} w— w -- w— w— A Vw�I„KIN�I-T-,Y�y D R 11!1E 17 T It GM-*07—WN7w w ww "w — —w I L ��� �- Y_=-= - !!Y = -' —T _- _ _ - r — .f V \fir I maw Iti1 -= S" i � PS T �x -x T • a k y I{ r �f 11 nc��h x l /r. APARTMENT 101 ,APARTMENT c^^ 1 � � 6 � 52' x 84' 1-f 52 z 74' p 1- 4.585 SF PER FLOOR c �� 3 STORIES j' 4Ai5 SF PER FLL�ER - 12 RESIDENTIAL UNITS f + 3 JTRIE PS TS FFE=540.58 _ II 1 REFE=55IAL II'NITS # � I'� '� • r \ \� PFE=534, 20 I I 5 PS La 1 �f � Iu L+I •Y I 1 , p ; C , f 1 Y 1I# ' W Llj � < D C ' - — y — — — T _ +� \ i 7 { J- 1 _ 'I _ awn e.,Emom a2 6A 44 f �I NOTE: THE INSPECTOR MAY REQUIRE ADDITIONAL SOIL EROSION & SEDIMENT CONTROL SYMBOLS MEASURES DEPENDING ON SITE CONDITTONS. IIII,. TITLE KEY 3-02 CONSTRUCTION ENTRANCE GE x —x —x —x 3,01 SILT FENCE SF -- 3,01' SAFETY FENCE 3.09 TEMPORARY DIVERSION DIKE ['1P±:V4N TO 'SCALE] 3.13 SEDIMENT TRAP ST 3.07 INLET PROTECTION IP 3.18 OUTLET PROTECTION OP TS 3.31 TEMPORARY SEEDING TS 3.32 PERMANENT SEEDING 3.35 MULCH ---{--� 3.39 DUST CONTROL (♦ LOD 2U 0 zo 40 6o LIMITS OF DISTURBANCE SHIMP ENGINEERING IAWR MIW - PoiOI£C+MaE✓aSEMf*� PIS E HUH 9T +H e;'.tif V:hVi0t16NLLE YA R^N 1116M1�1NPE�rvEE9HG WY Lp UJ I S it Li.N 451"I �A ESyA'7NAL 0 VShaP PLAN 2511 AVINITY DRIVE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2020.01.15 REVISION: 1) 2020.04.24 FILE NO. 16,050 EROSION CONTROL PLAN - PHASE 2 cil 0 SOIL EROSION & SEDIMENT CONTROL SYMBOLS NOTE: THE INSPECTOR MAY REQUIRE ADDITIONAL MP.ASURFS T38PEN0ING ON WE LONDITIONS. �J �.:. TITLE KEY 3.02 CONSTRUCTION ENTRANCE Cf x —x —x —x 3.05 SILT FENCE SF 3.01 SAFETY FENCE 3.09 TEMPORARY DIVERSION DIKE DD [DRAWN TO SCALE] 3,13 SEDIMENT TRAP SOT 3.07 INLET PROTECTION P 3.18 OUTLET PROTECTION EFJ TS 3.31 TEMPORARY SEEDING TS P$ 3.32 PERMANENT SEEDING + t 3.35 MULCH 3.39 DUST CONTROL DC LIMITS OF DISTURBANCE LOD� cam, SHIMP ENGINEERING 1.9Np F'L5N1lI!!(1 - PoiOI£C+M�SEMf*�� 9�� E HUH 9T +H e;' iti0 V:hVi0t16NLLE YA R^N 1116M1�1NPE�rvEE9HG WY UJ I S iP]� Li.N 451"I .pp R ES'YR7MAL 0 VShaP PLAN 2511 AVINITY DRIVE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2020.01.15 REVISION: 1) 2020.04.24 FILE NO. 116,050 EROSION CONTROL PLAN - PHASES 0 20,,, E0 C121 TEMPORARY DIVERSION DIKE Compacted Sail T 8" min w—Flaw R•- 4.5' min. (I)TEMPORARY DIVERSION DIKE (DD C13 Iral To scale PERSPECTIVE VIEW PERSPECTIVE VIEW PERSPECTIVE VIEW PLASTIC FENCE METAL FENCE (-2-'),SAFETY FENCE (SAF) 23 Not TO Scale TABLE 3.39-A ADITESINrE:S USED FOR DUST CONTROL Water Application Diluliun T' prof Rate. Adhesive tAdhesivei Water) Nozzle GillansfAcre Anionic Asphalt Emulsion 7:1 Coarse Spray 1,200 l.,a[CA Emulsion 123A Fine Spray 235 Resin in Water C Fine Spray 300 Acrylic Emulsion INon-Traffic) 7:1 COUVW Spray 450 Acrylic Fmulsion l Trallicl 3,5;1 Coarse Spray 3110 3 DUST CONTROL DC C13 Gist To Scala E i PERMANENT SEEDING SPECIFICATIONS Feh,uary 16 through April 30 Kentucky 31 Fescue 128 Ibs/acre, Red Top Grass 2 Ibs/acr Annual Rye - 20 Ibe/acre. Add 20 Ibs/acre Inolon grass 'when slopes are greater than 3.1 May 1 through ANgu Pt 15 Kentucky 31 Fescue 128 Ibs/acre• Red Top Gross 2 Ibs/acre; P t oil Millet 20 Ibs/ocre Add 20 lbe/¢ere Indian gross when elopes are grenler than ;:I. August 16 through October 3t: Kentucky 31 Fescue - 128 Ibs/acre, Red Top Grass - 2 Ibs/acre; Annual Rye - 20 Ibe/acre. Add 20 Ibs/acre Indian grass on slapes greater than 3:1 Navemtrer 1 through February 15- Kentueky 31 F—e - 128 IDs/acre; Red Top Grass - 2 Ihs/acre; Winter Rye - 20 Ibs/ocre. Add 20 Ibs/acre Indian grass on slopes greater I.hon 3:1. MULCHING SPECIFICATIONS: Strata or hay at o rate of 2 tans/acre Must be anchored, Spread with uleh blower or by hand. LIME AND FERTILIZER SPECIFICATIONS: Lune and fort fixer needs should be determined by soil tests Soil tests may be preformed by the Gaaperative Extension Service Soil Testing Laboratory at VPI&SU. ar by a. reputahte c erckA laboratory. Intarmogion concemmg the Stole Sail Testmq Laboratory is available From CITY €x trnslon Agent". Under um-0 candillpms Where it m not Posadblc to obtain a sell teat, the following soil amendments will be applied' Far Perm anent Seedng Seeded areas shall be Imcd of a rate of 2 tons per acre, and f talzed et a rate of 1 00D Ib per acre of 10-20-10 (10 Ibs- per 1 ODO Ru a feet) or equ Vol I. For Temporary Searing:. Seeded weaa shall be Bard of a rate of 2 lone per a and fertilized at a rate of 600 Its. per acre of 10-20-10 (10 Ibs. P., T, COO square feet) or equivalent. s PERMANENT SEEDING PS C13 Not I. scale Se11Cle5 sEsm ra � 1 b.l.eu, I&1 a tvP 651Ytalki Wraor aAO WeIiA Iv LL�rucWl � .k.111im T•sffivil Ind fMfa�isW PW r. p I-e,n Ivx Mr 6 TEMPORARY SEEDING TS C13 wet To scale 1992 3.35 TABLE 3Z.A o11CANIC MULCH MATERIALS AND APPLICATION RATES RA7'F.S: MULCT-IES: Mo-t'f55: Per Are Per I❑oD mg. a Straw or ),•lily IA .2 tan, 70 - gD Ilia Free from Weeds and muse (Minmrum 2 matter. Most he en h ftd. tuns for w[nter aver} Spored with mulch blower m by hand - Fiber Mulch :9linlmum 35 Imo. Do not vise as mWati for 15001bs. winter cover or during hol, dry periods.* Apply as rkurry. Corn Shallot 4 - 6 Ions 185 - 275 N.. Cut or shredded in 4-6" langlhs. Air-dried. Do AOI use In fine turf "rear. Apply with mulch blmwar or by hand - Wood Chip. 4 - 6 woe 185 • 275 lbs. Free of Orqu a tannin, Air- dried. Treat with 12 lbs adragc par coo. Do rat use in fine Wrf areas Apply with 1aalch RoWer, chip hardlnr, or by hand. _ Hark Chips 50. 70 cu. 1.2 cu yds. Free of alarse otaucr. All—Yds. dried. Do nul use in Fine Shredded wrf areas. Apply with Hart mulch hlmver, chip haadir.T. ar by head, • When fiber mulch i€ the Only availahle mulch during peTinds when atrow should tic used. apply at a minimum rule of 2000 Ihs.,fae. or 45 IbaflOfs) eg. IL 4 MULCHING MU C13 CONSTRUCTION OF A SILT FENCE (WITH WIRE SUPPORT) I. SE'I POSTS ArG Ex[ VALE A 4"s'r•' 2. STAPLE wAr FE9>:INa To T.E K5T3. TRENCH f ROS E AL9nG ME aNE or Pam 3 A " THE FILTER FABRIC Ta THE COKE FENCE AND EX11hO IT INTO TIE TKNr FL oo u 4 BACNFILL MA COMPACT THE ExCAWATM WL F.IRWWN OF FASIX AND WIFE Wm TFE TRENCH. FILTER FABRIC III I —I r-7 ISILT FENCE (SF� a3�/1bt To Soots Sediment Trop Design Doto Na A B C H (fL} C (n} 'eek tm M OA Wet 01 ()t Wet Vol. Dry 02 Oro Vol (it) (APO) (Rea.} (Pcoe.) (Raq.), (h') (pro,) 5.3;1 D 530.0 527.0 310 3'D $.2 0.87 58.3 3.0 $9.7 58-3 2.0 64.1 OPoaN4 EV. E° ,,ro,I—E w[T sTCR.4tE q 61 U ,U.7Av'PE m mH 114 I[ Au9f[GI rir[A 0. „- , r ,. CaAPSE AaFftECATE"" CUASS I a1rV01P CROSS SECTION OF OUTLET IR FEET) - r . OA UN —rs1 ME ��� exrfr.,,TEo rnL:eu %urH S��-� -COARSE AGGREGATE SHALL BE VDOT 03. /357 OR /S OUTLET (PERSPECTIVE VIEW) B' TEMPORARY SEDIMENT TRAP (ST L C YNot To Soak SFONL 70- MIN. CONSTRUC-IDN ACCESS ^3 SM 2A ASPHALT TOP Coll;;c E1aSTASG PAVEMFIJT pp7 5- WIN, 2'A AGGREGATE BASE PROFILE STUN[ CpH$TRLK:'r:� NCCESS -� ASPHALT PAWED A wASHrucK 111111111jj11II j11r�IIIIjIIIIjjIIp1`[11j, IIIIj11111 -ERiSIND 2 2R PAVF'NEM 219 i? MIN L� I `� TOS ED1 ONNNA(:E 11 TO SEOIMLFLf TRAPPING DEVICE 'mu`57 Utrc RILL wICITIi OF INGRESS AHD LCR[55 GfrW,ION .'PLAN y�-17' MIN. P05RVE DRAINAGE ITC SFDF TRa PINMD DEYiCf. ., r ILTCR C:UI.I.� ' SECTION A —A A buuLahu Wrier tap of 1 iudlnatst be'ulstalled W411 a uuwmult 1 Inch ballc ocA sholotf valve snppl}ina a wash hose wilt[ a tha netw of 1 iuchm for mi sti late, c ululud preKsme. tVesh Wals lutist fir caned aWaV Dmn tlLe mlrauce to au >h,1rn1•erl senfal¢ less to relnm:e Reerhnutlt ;'4.11 serlaneld Hhldl Ire prnelde4l Fran elneyng Onnju dtrlujN. dd01e4 aF e,;d.I c'otuseu. PAVED WASH RACK NO SME s PAVED CONSTRUCTION ENTRANCE PCE C13 Hut To Scala — GRAVEL CURB INLET SEDIMENT FIL TER GRAVEL FILTER 1?- RUNpFF WATERS —WIRE MESH FILTERED WATER ff SEDIMENT!" III- CONCRETE GUTTER iIv- LU:RB INLET SPECIFIC APPUCAtION THIS METHOD OF INLET PROTECT" 1S APPUOASLE AT CURB INLETS WHERE PORDING IN FRONT OF THE STRUCTURE IS NOT UKELY TO CAUSE INCONVENIENCE OR DAMwGE TO ADJACENT STRUCTURES AND UNPROTECTED AREAS. • GRAVEL 'SMALL BE VDOT A3, 0357 C0 5 COARSE AGGREGATE. 10\INLET PROCTION IP) C13 Nat to SC* SHIMP ENGINEERING L9Np PL,9XNINB - PRaIEC+M9NA5EMr*�� 012E. HUHF 4H t:•illO ChARLa11$WLLe v. alnwep—se r1EEANaaeM t� Lsf I S fF ]� Li . N 45183 �„R 2gi190 �Syr{xMA1. 0 dShaP PLAN 2511 AVINITY DRIVE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2020.01.15 REVISION: 1) 2020.04.24 FILE NO. EROSION CONTROL DETAILS 15.050 C13 Section 5. Stormwater Management Plan 1. ALL ONSITE RUNOFF SHALL BE ROUTED INTO EXISTING CHANNELS AT RATES THAT COMPLY WITH 9VAC25-870-66-B(3). SINCE RUNOFF RATES MEETS THE ENERGY BALANCED EQUATION, NO DOWNSTREAM ANALYSIS IS REQUIRED. 2. ONSITE RUNOFF SHALL BE MANAGED USING UNDERGROUND DETENTION. 3. WATER QUALITY WILL BE ADDRESSED BY A NUTRIENT CREDIT PURCHASE TO SATISFY 9VAC25-870-65. Issued — 10/2014 Stormwater Pollution Prevention Flan (SWPPP) Albemarle County SHIMP ENGINEERING, P.C. Design Focused Engineering January 15, 2020 Engineering Review Albemarle County Department of Community Development 401 McIntire Road Charlottesville, VA 22902 Regarding; WPO 2020xxxxx 2511 Avinity Dr VSMP — SWM Calculation Packet Bear Emily,. Enclosed is the stormwater calculation packet for 2511 Avinity Dr. The development property has an area of'0.91 acres and a disturbed area of 1.12 acres. The project is a private redevelopment of a site. The proposed stormwater design meets water quality requirements set forth in 9VAC25-870-65 and water quantity requirements set forth in 9VAC25-870-66-B(3) and 9VAC25-870-66-C. SWM Quality SWM Quality is satisfied by providing required nutrient treatment for the development. 9VAC25-870-65 requires that the total phosphorous (TP) nutrient load created by the site development be treated in accordance with the VRRM Redevelopment Spreadsheet reduction requirements. To achieve nutrient treatment, a purchase of nutrient credits for the full amount of required treatment shall be made. This amount totals 1.14 lbslyr phosphorous credits and satisfies the nutrient treatment requirement. Treatment Required Total Phosphorous) Treatment Provided Total Phosphorous) 1.14 lb/yr 1.14 lblyr SWM Quantity SWM Quantity is satisfied by analyzing concentrated runoff from the development at 2 Points Of Analysis (POA) within a channel downstream of the development property. 9VAC25-870-66-B(3) requires that concentrated runoff from development at each POA meet the energy balance equation. To achieve this, most concentrated runoff from the site will be routed to an underground detention facility which discharges to POA 1. The runoff from the detention, along with unmanaged (bypass) runoff for the site to POA 1, meets the energy balance equation. At POA 2, the postdev runoff from the site has less volume and peak flow than the predev conditions, so the energy balance equation is also met at POA 2. 9VAC25-870-66-C requires that the post-dev 10- year runoff at both POA's not exceed the pre-dev 10-yr runoff. This condition has also been satisfied. See table below for summary. 912 E. High St. Charlottesville, VA 22902 1434.227.5140 1 shimp•engmeerrng.com P©A 1 Pre-dev Peak. Runoff Max. Allowed Peak Runoff Post-dev Peak Runoff 1-Yr 0.43 efs 0.26 cfs 0.24 cfs 10-Yr 1.89 cfs 1.89 efs 1.35 cfs POA 2 Pre-dev Peak Runoff Max. Allowed Peak Runoff Post-dev Peak Runoff 1-Yr 0.97 cfs 0.97 cfs 0.42 cfs IO-Yr 2.57 cfs 2.57 cfs 1.13 cfs Individual Channel Capacity The proposed development outlets to 4 existing inlets on Avon St. For each one of these inlets, the postdev runoff is less than the predev runoff. This is shown on the Lb-204 worksheet, and the runoff flows from the design requirement of I=4.0 are shown in the table below. Since the runoff to each inlet is less than the predev condition, no further capacity analysis was performed. Inlet Pre-dev Pear Runoff Post-dev Peak Runoff X1 0.54 cfs 0.2.2 cfs X2 0.45 cfs 0.37 cfs X3 0.27 efs 0.20 cfs X4 0.74 cfs 0.34 cfs If you have any questions about this calculation packet please do not hesitate to contact me at: keane@shimp- engineering.co or by phone at 434-299-9543. Regards, Keane Rucker, EIT Shimp Engineering, PC 2511 AVI N ITY I a>�B HS B -r 1 I I I I I I I I AVIDITY DRIVE 60' PRIVATE RIGHT-OF-WAY rss�� PREDEV VRRM MAP DISTURBED AREA: 1.12 AC HSG B AREA: 0.55 AC HSG D AREA: 0.53 AC WOODS: 0.00 AC TURF: 1.02 AC HSG B: 0.52 AC HSG D: 0.50 AC IMPERV: 0.10 AC HSG B: 0.07 AC HSG D: 0.03 AC 36 0 30 60 96 r- S41e: 1 "=30' —. 00' P ; NATEERIGHT-OF-WAY 1 �.--------- f ( I t — — — d `— --- -_ 2511 AVI N ITY POSTDEV VRRM MAP TOTAL SITE: 1.12 AC WOODS: 0.00 AC TURF: 0.42 AC HSG B: 0.30 AC HSG D: 0.12 AC IMP€RV: 0.70 AC HSG B: 0.29 AC HSG D: 0.41 AC ff� •0 40 ■ ■ ■ ■ ■ Scale:M DE4 Virginia Runoff Reduction Method Re -Development ClPmpiiaare Spreadsheet - Vemlon 3.0 112011 AMP Standards and SPedflcartions 0 2013 Draft AMP Standards and Specific tkens projtet Narm. data input edk 2511 AvinitY Odw Data YjY2/2020 °or tant'"ra3ues Linear Development Project? No cak.W oodl. Site Information Post -Development Project (Treatment Volume and Loads) Enter Total Disturbed Area {acres) -i 1.12 Check: BMPDesign Specifications Lfst: 2013 Draft Stds & specs Linear No Land raver arras entered rorrecrnectIV? Gy? �® Totai disturbed area entered? Corer i nPPn spare 0.90 Managed%,flacers] -MmbO,gmdPd!or yard, or ntW epd to bP mo-dlmanaged 0.52 050 1.92 Impervious Cover latex] ,,_ I I „ _. 110:F0 A Sods I asoirs CWN Dsoils I totals raresifOpan $7 [weft - urrdaturbPd, ODO Pmrnrtad fo_'cln^'spprn or rafw wd land Managed Turtlwnl a t rnRa. ��aRa der 042 yards w other lwrt to be-edfm pd! 0.30 0.12 ImparriousCmmr(aves] M79 0.41 ❑.M Area CN-k OR. ON. OR. OK. 1 12 A 1,11, aSolk CSoils Dw. Foreslirlpen Space 0.02 003 o.ed 0-05 Managed Twrf o.15 O-x0 eg 0-25 Impervious Cover 0.95 o.4S o.95 0,95 Pr"- uev lk w listed Adjuxied� ForeJD,o n Space Cover (acres) 0.00 0.00 We,gllsep a J%ftal Do0 0-00 '%Forest 0% 0% Ma gedTmf Coven{-.) I'M OA2 Wegh"d ft(o l 0.22 021 %MaaagM Tmf 91% al% Impervious Corer{acres¢ 0.10 0.10 rota) Site A{ a a lames) 1.12 Q.SE Site Rv M79 636 Treatment Volume and Nutrient Load Prc-Reoeveippmenlrrcavnent Vdume 0.0270 60154 (_D) Prc-Ita0WlnnemTre MVd- [cu4ic feeQ 1.176 G72 Pre-nebevelopment TP Load 0,74 0,42 [1Djyr( ere-rzeoe. momeea rp ewaper ene e� u.B1 MY-10l 6asellpe TP taatl {N[yr) lu at lbsfaue/tt applietl la Pre+adcrele>Pmemara -Wing a.1a 4nd Prrpgsea br new vnpervlws cwerl I Adjanred Lpral d'gs•rr $ummgry' Prc Rnfrcaa#+pmrnd Mrxlrover minox RarviquF lgrei mvrr OhrcrL'pPen FpRR ur nam 4 nazi gcracRa mnwosed fornrw mrerrvrgpsPmvr shows foW rrduFt/on raquriwnrnrfar mrw Nrwrryroen oova.r (based on now Posl ReDev. & New Impervious Fore W Open Space Coxertacrcxl eoO We_' htM RWrorexq 0.00 %Forest M Managed Turf Corer 042 a -I Weighted RV INK) 0,21 %Managed TO 36% Impervious Cover 070 lac esl aWlmpervlmrsj 0.95 %Irnperd4us 0% Final 3Ae Area trawl 1.12 FoalP Dev Sire R. 0,67 Flnal Peat Derelppment Treatmenx 4ghsme 0.0529 Final Post o-lopmem Treavnent VaMeme 7.741 [winckee] Final Post- DeretapttlexxrTP Load 1.72 Itb O 11- _a oar -rm. -.>a Vlb(erelvri leard [oven Svmnrory-Port L.nd cavern-ri,-Pout PoReDevelopment P'asr-Derelppment Hew Impervious F-Wopen Space 0D9 -- Cover (ac esl Weighted Hvlforexsl O-DD I xwesr 0% Mznoged runt Cover 042 i-0 Weighted Rv [Lodi 0.21 %Managed rarf R1% ReOev. Imps -rvuus o.to ... •.a' Impervious Coves .. �.. Cover 1-i J_e Rvlanprevlpusj 0.95 x:a(Impervlous) %Imperviovs 19% UNI MMM. Sae M. 0.5E [-) MD. sae AV 0.35 Treatment Volume and Nutrient Load Posi.ReQevelopm�t Post-Oeve{tprrnen[ Tree .M.- 0,0154 Treatment Volume 0,0475 (aae-D] Ya�Dy Pwt�-ReOevelopmerrt PostDerctapmem Treatment M,577 T,.-M Velume (cubic 2.M (cublcree[ feet) - L1t Lad(TP( 0.42 Past-Oreelapnlegr TP UPO WTI* load Llbipi ss geoeva�Ppm r wad Peraoe eel (IbfeuNw) Max. Redelgva RrRvlred 3aeloy Prv- PO.wtgPmaM wadi Ppff TP bad ReduetWn pepuirzd }Pr TP load Reduction Redeveloped Area D Required fur New LOS ilblvr] Impervious Area Ilbfyrl TP Load Reduction Required IlblYrl I L14 I r k-D I'll 5 B HS 5� B LL 0 �AVHNITY DRIVE P, 601 VATE RIGHT-OF-WAY m moo ONE won 0 4 4le 41 ** 71 B HSG B 38, TO POA I 26760 SF \0 \545.0 ----�DWIN BAR"OUR 1-00 0,35GO ZON EID -1 -5-4 Y Rl SINGLE RES6 NTIAL L 88 HSG Q ■ ■ TO POA 2 • 22930 SF ■ ■ ■ ■ It RR W SIR OR LAURA J MOSS P 09000-00-035AO ZONED RI DB 541 PG 642 S1111LE FAMILY RESISENTIAL J545.0 . )) Ar 1532.7 ■ ■ t ■ C AVON PROPERTIES L C TMP 091AO-00-00-0 0 ZONED PIRID OPEN SPACE I (KAITLIN E OY i TMP 091A -00- 40 -O 00 ZONED PRD SIN AMIL E A Y T HED 2511 AVINITY PREDEV POA DRAINAGE MAP PREDEV DRAINAGE AREA (AREA WITHIN LIMITS OF DISTURBANCE) DRAINAGE TO POA 1:0.61 AC TURF: 0.58 AC HSG B: 0.49 AC HSG D: 0.09 AC IMPERV: 0.03 AC ALL HSG B TOC 1: 11.2 MIN DRAINAGE TO POA 2:- 0.53 AC TURF: 0.10 AC HSG B: 0.06 AC HSG D: 0.40 AC IMPERV: 0.10 AC HSG B: 0.04 AC HSG D: 0.03 AC TOC 2:11.7 MIN 30 0 30 60 90 Scq le: 1 "=30' LL Q c? • 4 ; ---`-------- _-- AIIW1;YDRIVE `— —:-- --,.—mow:_.—.'— 60" PTVATS RIGHT-OF-WAY ..- — — —•' — Now r ,% + *+ + i i 0 '/r #1 B OSG B cellIll r:7,,, % I� d I I � m lrN I I/.//.�/�W.�I "MA mfr`�_— PAR i r Scale: 1 r 2511 AVINIT'Y POSTD EV POA DRAINAGE MAP DRAINAGE TO POA 1: 1.00 AC. INCLUDES DRAINAGE TO BMP AND BYPASS DRAINAGE. BMP DRAINAGE AREA: 0.71 AC TOTAL TURF: 0.10 AC HSG B: 0.04 AC HSG D: 0.06 AC IMPERV: 0.61 AC HSG B: 0.24 AC HSG D: 0.37 AC TUC: ASSUMED 5.0 MIN. BYPASS DRAINAGE AREA: 0.24 AC TOTAL ALL HSG B TURF: 0.20 AC IMPERV: 0.04 TOC: ASSUMED 5.0 MIN DRAINAGE TO POA 2: 0.19 AC. BYPASS DRAINAGE TURF: 0.13 AC HSG B: 0.07 AC HSG D: 0.06 AC IMPERV: 0.06 AC HSG B: 0.01 AC HSG D: 0.05 AC TOC: ASSUMED 5.0 MIN Energy Balance Equation Summary 2511 AVINITY DR 24 Hr 1 year Storm Comparison: Qdeveloped:S I.F. *(Qpre-developed*RVPre-Developed)/RVdeveloped l y. QdevelopedC (Qforested* RVforested)/RVdeveloped POA 1: Qpre-developed = 0.43 RVPre-Developed = 0.029 Max Qdeveloped = O.26 cis RVDeveloped = 0.043 Achieved Post-Dev Peak Runoff Qivr=0.24 cis. Runoff complies with 9VAC25-870-66-(3)A 10-YEAR STORM; Qpre=1.89 cis Qpost=1.35 cis Energy Balance Equation summary 2511 AVINITY DR 24 Hr 1 year Storm Comparison: Qdeveloped:5 I.F. *(Qpre-developed*RVPre-Developed)IRVdeveloped Qdeveloped5 Qforested RUfarested Redeveloped POA 2: Qpre-developed = 0.97 RVPre-Developed = O.OS7 Max Qdeveloped = 0.97 cis RVDeveloped = 0.019 Achieved Rost-Dev Peak Runoff Qlyr=0.42 cis. Runoff complies with 9VAC25-870-66-(3)A 1 O-YEAR STORM: Qpre=2.57 cfs Qpost=1.13 cis JMEW� ji AVINITY DRIVE 60'11VATE RIGHT-OF-WAY X3 x PRE TO X3 5445 SF PRE TO X2 14390 SF PRE TO X4 22350 SF 2511 AVINITY PREDEV POA DRAINAGE MAP X4 170 xi PRE TO Xl 18215 SF If .. ........................ .......... ........... .......... 30 0 30 60 90 r t--- Mwl6n& t-wm m m m !!I I S41e! 1 "=30' 2511 AVINITY 0 -- - - - - - - - - - - - - - - - ----- -7- - - - - - - - - - - - AVINITY DRIVE 60'fJIVATE RIGHT-OF-WAY Z�M - - - - - - - - - - - - JPOST TO X2 POST TO X3 L---------------- POSTDEV INLET DRAINAGE MAP X4 POST TO X4 560 SF 34 I'l 3- U C2 0 P n R,; VTT C) C 9 30 0 30 60 90 %■no■w■m !!I Scale: 1"=30' 2511 AVINITY DR LD-204 Starmwater Inlet Computations Inlets on Grade Only Sag Inlets Only m E m ¢ N a m a n z m co Z C O 41 N z y _ O tll C] 7 t1 d "� a il'1 N T UQ C O p M +� � `x f6 m z uJ - m CL a 9 2 C1 -0 C3 0 0 C> a- 0 F cn ® a° 0 0 L. 1 2 3 4 5 6 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 (ft) (ac) (infhr) (cfs) {c(s) (cis) (T) ('P) V) (ft) (ft) (cis) (cfsj (ft) 1 01) 1 (ft) C2 DI-3B 10 0,24 0.71 0.17 4.0 0.69 0.00 0.69 0.015 0,042 0.020 0.08 0.5 0.16 4.68 6.5 1,12 0.00 1.12 0.11 0.5 0.22 5.60 B2 DI-3B 10 0,45 0,71 0.32 4.0 1.27 0,00 1.27 0.015 0.015 0.020 0.12 0.5 0.24 5.91 6.5 2.06 0.00 2.06 0.16 0.5 0.33 8.15 X1 PRE DI-313 12 0.42 0.32 0.13 4.0 0.54 0.00 0.54 6.5 0.87 0.00 0.87 X1 POST DI-3C 12 0.14 0,41 0.06 4.0 0.22 0.00 0.22 6.5 0.36 0.00 0.36 X2 PRE 13I-313 8 0.33 0.34 0.11 4.0 0.45 0,00 0.45 6.5 0.73 0.00 0.73 X2 POST DI-313 8 0.24 0.38 0.09 4.0 0.37 0.00 0.37 6.5 0.60 0.00 0.60 X3 PRE DI-313 6 0.13 0.53 0.07 4.0 0:27 0.00 0.27 6.5 0.43 0.00 0.43 X3 POST DI-3C 6 0.12 0.41 0.05 4.0 0.20 0.00 0.20 6.5 0.33 0.00 0.33 X4 PRE DI-313 6 0.51 0,36 0.18 4.0 0.74 0,00 0.74 6.5 1.19 0.00 1.19 X4 POST DI-313 6 0.17 0,49 0.08 4.0 0.34 0.00 0.34 6.5 0.55 0.00 0.55 Note: For existing inlets (X1 -X4), postdev runoff to the inlet is less than predev. No further analysis needed for these inlets or pipes. LD-229 Storm Drain Design Computations 2511 AVINITY DR From To Catch. Runoff Increment Accum. Total Total Total Up Down Pipe Invert Pipe Pipe Velocity Flow time Structure Structure Area Coef AC AC TOC Intensity Flow invert Invert Length Slope Diameter Capacity Increment act min infhr cfs Elev. Elev. ft % in (cfs) (ftls min 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 02 C1 0.24 0.71 0.17 0.17 5.00 6.81 1.17 532.00 530.00 132.60 1.51 % 15 8.6 4.9 0.45 B2 B1 0,45 0,71 0.32 0.32 5,00 6.81 2.16 532.40 532.00 18.07 2.21% 15 10.4 6.7 0,04 A2' Al 0.55 529.00 525.94 107.81 2.84% 15 15.7 4.9 0.37 *10 yr Flow from H droCAD model Section G. Pollution Prevention Plan. (reference County Code 17-404 and State Regulation 9VAC25-880-70 part 11 section A,4) A. Plan showing pollution activities and prevention practices Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County II AVINITY DRIVE tt*ATE RIGHT-�'JOF—WAY -2— 30 0 30 60 90 Scale: 1 "=30' PORTAJOHNS, TRASH, — AND RINSE SUPPLY SPILL KIT STATION & CONCRETE RINSE CONTAINER �9 �SP MWAPILSPDX RAIN GAGE LOCATION 44 2511 A VINITYDRIVE POLLUTIONPREVENTIONPLAI) NOTE: CONTRACTOR CAN RELOCATE POLLUTION PREVENTION ITEMS, BUT MUST MARK UP DRAWINGS WITH UPDATED LOCATION. LIMITS OF DISTURBANCE TO BE FIELD MARKED WITH WHITE FLAGS OR WHITE PAINT IMPORTS MUST BE NOTED IN THE SWPPP GRADING LOG. SOIL EROSION & SEDIMENT CONTROL SYMBOLS SYMBOL NO, TITLE KE 3.02 CONSTRUCTION ENTRANCE (CE 3.03 CONSTRUCTION ROAD STABILIZATION CRC X X 3,05 'SILT FENCE SF 3,07 INLET PROTECTION cip 3.09 TEMPORARY DIVERSION DIKE (ED _DRAVyH TO -D--- ALL 313 TEMPORARY SEDIMENT TRAP CST 3.18 OUTLET PROTECTION Cop TS 3.31 TEMPORARY SEEDING CTS 3.32 PERMANENT SEEDING PCs 3.35 MULCH 6 3.39 DUST CONTROL (cc SAFETY FENCE LIMITS OF DISTURBANCE S. C. Sources of Pollutants continued. Common activities and minimum control and prevention practices Pollutant, or Pollutant Location on site Prevention Practices, Generating Activity Control Measures Follow Erosion and Sediment Control Clearing, grading, excavating, and un- Land disturbance area Plan. Dispose of clearing debris at stabilized areas acceptable disposal sites. Seed and mulch, or sod within 7 days of land clearing Cover storm drain inlets and use drip pans Paving operations Roads and driveways and absorbent/oil dry for all paving machines to limit leaks ands ills Direct concrete wash water into a leak - Concrete washout and Current location and detail shown on proof container or leak -proof settling basin cement waste plan that is designed so that no overflows can. occur )unclose or cover material storage areas. Mix paint indoors in a containment area or Structure construction, stucco, Structures in a flat unpaved area. Prevent the painting, and cleaning discharge of soaps, solvents, detergents and wash water, paint, form release oils and curing com pounds. Water shall be filtered, settled or similarly Dewatering operations Dewatering sites shown on plan treated prior to discharge as shown on lan. Designated areas for material delivery and Material delivery and storage Designated area shown on plan storage. Placed near construction entrances, away from waterways and drainage paths Material use during building process Building areas Follow manufacturer's instructions. MSDS's attached. Waste collection area will not receive a substantial amount of runoff from upland Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Pollutant, or Pollutant Location on site Prevention Practices, Generating Activity' Control Measures areas and does not drain directly to a Current designated container areas on waterway. Containers have lids covered Solid waste disposal plan before periods of rain, or are in a covered area. Scheduled collection to prevent overfilling. MATERIALS NOT TO BE BURIED ON -SITE Convenient and well -maintained portable sanitary facilities will be provided, and Sanitary waste Current locations shown on plan located away from waterways or inlets. Such facilities shall be regularly maintained. Apply fertilizers in accordance with Landscaping operations Landscape areas shown on plan manufacturer's recommendations and not during rainfall events To be treated in a sediment basin or better control as specified on plan. Minimize Wash Waters Wash areas shown on plan the discharge of pollutants from e ui merit and vehicle washing Vehicle and equipment washing Designated areas and details shown on Provide containment and filtering; for all plan wash waters per the plan Minimization of exposure to precipitation and stormwater. Minimize the exposure of building materials, building products, construction wastes, trash, landscape materials, fertilizers, pesticides, herbicides, detergents, sanitary waste, and other materials present on the site to precipitation and to storrnwater. (Identify all non-stormwater discharges to occur on your site. Keep this plan up-to-date with ongoing site changes and inspections. See CGP, 9VAC25-880-70 section E for examples of non-storinwater discharges.) D. Non-stormwater di! Discharge Dust Control Treatment Pollutants or Pollutant Constituents chemicals Location on Site Designated areas and details shown on E. Persons responsible for pollution prevention practices Issued — 10/2014 Storrnwater Pollution Prevention Plan (SWPPP) Albemarle County To be determined when contractor is selected. F. Response and reporting practices Minimize discharges from spills and leaks. Minimize the discharge of pollutants from spills and leaks and implement chemical spill and leak prevention and response procedures as follows. To the extent practical, do not store oils, chemicals, or other potential contaminants on site. When storage of potential contaminants is required, provide secondary containment, such as spill berms or spill containment pallets. These should be located within the drainage areas to a sediment trap or sediment basin. Direct concrete wash water into a settling basin, dispose of hardened concrete with other construction waste debris to an appropriate waste facility. Respond to all spills, leaky and discharges as follows. Spills of oil, petroleum products, sanitary wastes, and substances listed under 40 CFR parts 110, 117, and 302 should be cleaned up as soon as possible while protecting worker safety. Construct an earthen dike around any spills on dirt to prevent spreading. If a spill occurs during rainfall, cover it with a tarp or another impermeable cover to prevent contaminating runoff. Do not bury any spills or wash them with water. Maintain a spill kits in a readily accessible location. A spill kit shall consist of a lined drum with bags of universal sorbents in the bottom, accessible without tipping the drum, sorbent socks above the bags, and personal protective equipment on the top. All materials used to remove the contaminants, including any water used to rinse equipment, and all dirt removed must be treated as contaminated. Textiles, such as from coveralls, may be sent to a certified laundry facility. Waste must be disposed of according to the standards of Albemarle County and the Commonwealth of Virginia. Store hazardous materials and wastes in covered containers. Report all .spills, leaks and discharges as follows: All spills, leaks, and discharges shall be recorded in the inspection logs. If construction activity results in a discharge of contaminants that may be reasonably expected to enter surface waters, the operator shall notify the Department of Environmental Quality immediately or within 24 hours, and shall submit a written report within five days. For significant spills that cannot be controlled by personnel in the immediate vicinity, notify the local emergency response by dialing 911. Albemarle County must also be notified, and potentially some of the following agencies: the Fire Department, the Public Works Department, the Coast Guard, the Highway Patrol, the County Police Department, Department of Toxic Substances, OSHA, etc. For spills of federal reportable quantities, in conformance with the requirements in 40 CFR parts 110, 119, and 302, the contractor should notify the National Response Center at (800) 424-8802. G. Pollution Prevention Awareness The engineer, project superintendent, and contractor shall have weekly meetings to review on -site conditions and advise contractor of potential risks that should be addressed. Contractor will be responsible for following procedures on a daily basis and applying appropriate waste management and prevention practices to be in compliance with the conditions of the general permit. Employees shall be informed of the danger to nature and to human health of various chemical spills. Section 7. Discharges to impaired waters, surface waters within an applicable TMDL, wasteload allocation, and exceptional waters. Issued o 10/2014 Stormwater Pollution Prevention flan (SWPPP) Albemarle County Water discharges into an impaired water: Moores Creek. Moores Creek was listed as impaired due to Benthic- Macroinvertebrate Bioassessments for E-Coli and Fecal Coliforms. Site work shall be in compliance with the following requirements: 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. In accordance with Part I B 4 and Part I B S, inspections shall be conducted as follows: I. Inspections shall be conducted at a frequency of (i) at least once every four business days or (ii) at least once every five business days and no later than 48 hours following a measurable storm event. In the event that a measurable storm event occurs when there are more than 48 hours between business days, the inspection shall be conducted on the next business day; and II. Representative inspections used by utility line installation, pipeline construction, or other similar linear construction activities shall inspect all outfalls discharging to exceptional waters. Section 8. Qualified personnel The following personnel are responsible for inspections: To Be Determined. The Operator or duly authorized representative will serve as the gualifled personnel. This may include delegating this responsibility to other contractors as they become involved with the project. The SWPPP will be updated when contractor is hired. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 9. Signed Certification 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. l am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." Owner/Operator Name: James Rogers Moss Company: Title: Signature: Date: 00 Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 1 Q. Delegation of authority. Delegation of Authority 1, (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 2511 Avinity Dr. construction site. The designee is authorized to sign any reports, stormwater pollution prevention plans and all other documents required by the permit. (name of person or position) (company) (address) (city, state, zip) (phone) By signing this authorization, I confirm that I meet the requirements to make such a designation as set forth in the Construction General Permit (CGP), and that the designee above meets the definition of a "duly authorized representative". Operator Name: Company: Title: Signature: Date: Issued - 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 11. General permit copy Issued 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County COMMONWEALTH of VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY General Permit No.: VAR10 Effective Date: July 1, 2019 Expiration Date: June 30, 2024 GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION ACTIVITIES AUTHORIZATION TO DISCHARGE UNDER THE VIRGINIA STORMWATER MANAGEMENT PROGRAM AND THE VIRGINIA STORMWATER MANAGEMENT ACT In compliance with the provisions of the Clean Water Act, as amended, and pursuant to the Virginia Stormwater Management Act and regulations adopted pursuant thereto, operators of construction activities are authorized to discharge to surface waters within the boundaries of the Commonwealth of Virginia, except those specifically named in State Water Control Board regulations that prohibit such discharges. The authorized discharge shall be in accordance with the registration statement filed with the Department of Environmental Quality, this cover page, Part I - Discharge Authorization and Special Conditions, Part II - Stormwater Pollution Prevention Plan, and Part III - Conditions Applicable to All VPDES Permits as set forth in this general permit. Construction General Permit Effective July 1, 2019 Page 2 of 26 PART I DISCHARGE AUTHORIZATION AND SPECIAL CONDITIONS A. Coverage under this general permit. 1. During the period beginning with the date of coverage under this general permit and lasting until the general permit's expiration date, the operator is authorized to discharge stormwater from construction activities. 2. This general permit also authorizes stormwater discharges from support activities (e.g., concrete or asphalt batch plants, equipment staging yards, material storage areas, excavated material disposal areas, borrow areas) located on -site or off -site provided that: a. The support activity is directly related to the construction activity that is required to have general permit coverage for discharges of stormwater from construction activities; b. The support activity is not a commercial operation, nor does it serve multiple unrelated construction activities by different operators; c. The support activity does not operate beyond the completion of the last construction activity it supports; d. The support activity is identified in the registration statement at the time of general permit coverage; e. Appropriate control measures are identified in a stormwater pollution prevention plan and implemented to address the discharges from the support activity areas; and f. All applicable state, federal, and local approvals are obtained for the support activity. B. Limitations on coverage. Post -construction discharges. This general permit does not authorize stormwater discharges that originate from the site after construction activities have been completed and the site, including any support activity sites covered under the general permit registration, has undergone final stabilization. Post -construction industrial stormwater discharges may need to be covered by a separate VPDES permit. 2. Discharges mixed with nonstormwater. This general permit does not authorize discharges that are mixed with sources of nonstormwater, other than those discharges that are identified in Part I E (Authorized nonstormwater discharges) and are in compliance with this general permit. 3. Discharges covered by another state permit. This general permit does not authorize discharges of stormwater from construction activities that have been covered under an individual permit or required to obtain coverage under an alternative general permit. Page 3 of 26 4. Impaired waters and total maximum daily load (TMDL) limitation. a. Nutrient and sediment impaired waters. Discharges of stormwater from construction activities to surface waters identified as impaired in the 2016 § 305(b)1303(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 (Le., 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 11 G 2 a. b. Polychlorinated biphenyl (PCB) impaired waters. Discharges of stormwater from construction activities that include the demolition of any structure with at least 10,000 square feet of floor space built or renovated before January 1, 1980, to surface waters identified as impaired in the 2016 § 305(b)r303(d) water Quality Assessment Integrated Report or for which a TMDL wasteload allocation has been established and approved prior to the term of this general permit for PCB are not eligible for coverage under this general permit unless the operator develops, implements, and maintains a SWPPP in accordance with Part II B 6 of this permit that minimizes the pollutants of concern and, when applicable, is consistent with the assumptions and requirements of the approved TMDL wasteload allocations, and implements an inspection frequency consistent with Part II G 2 a. 5. Exceptional waters limitation. Discharges of stormwater from construction activities not previously covered under the general permit effective on July 1, 2014, to exceptional waters identified in 9VAC25-260-30 A 3 c are not eligible for coverage under this general permit unless the operator develops, implements, and maintains a SWPPP in accordance with Part II B 7 of this permit and implements an inspection frequency consistent with Part II G 2 a. 6. There shall be no discharge of floating solids or visible foam in other than trace amounts. C. Commingled discharges. Discharges authorized by this general permit may be commingled with other sources of stormwater that are not required to be covered under a state permit, so long as the commingled discharge is in compliance with this general permit. Discharges authorized by a separate state or VPDES permit may be commingled with discharges authorized by this general permit so long as all such discharges comply with all applicable state and VPDES permit requirements. D. Prohibition of nonstormwater discharges. Except as provided in Parts I A 2, 1 C, and I E, all discharges covered by this general permit shall be composed entirely of stormwater associated with construction activities. All other discharges including the following are prohibited: 1. Wastewater from washout of concrete; 2. Wastewater from the washout and cleanout of stucco, paint, form release oils, curing compounds, and other construction materials; Page 4 of 26 3. Fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance; 4. Oils, toxic substances, or hazardous substances from spills or other releases; and 5. Soaps, solvents, or detergents used in equipment and vehicle washing. E. Authorized nonstormwater discharges. The following nonstormwater discharges from construction activities are authorized by this general permit when discharged in compliance with this general permit: 1. Discharges from firefighting activities; 2. Fire hydrant flushings; 3. Waters used to wash vehicles or equipment where soaps, solvents, or detergents have not been used and the wash water has been filtered, settled, or similarly treated prior to discharge; 4. Water used to control dust that has been filtered, settled, or similarly treated prior to discharge; 5. Potable water sources, including uncontaminated waterline flushings, managed in a manner to avoid an instream impact; 6. Routine external building wash down where soaps, solvents or detergents have not been used and the wash water has been filtered, settled, or similarly treated prior to discharge; 7. Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred (or where all spilled or leaked material has been removed prior to washing); where soaps, solvents, or detergents have not been used; and where the wash water has been filtered, settled, or similarly treated prior to discharge; 8. Uncontaminated air conditioning or compressor condensate; 9. Uncontaminated ground water or spring water; 10. Foundation or footing drains where flows are not contaminated with process materials such as solvents; 11. Uncontaminated excavation dewatering, including dewatering of trenches and excavations that have been filtered, settled, or similarly treated prior to discharge; and 12. Landscape irrigation. F. Termination of general permit coverage. 1. The operator of the construction activity shall submit a notice of termination in accordance with 9VAC25-880-60, unless a registration statement was not required to be submitted in accordance with 9VAC25-886-50 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 overall areas of the site that have not been finally stabilized and obtained coverage for the ongoing discharge; c. Coverage under an alternative VPDES or state permit has been obtained; or d. For individual lots in residential construction only, final stabilization as defined in 9VAC25- 880-1 has been completed, including providing written notification to the homeowner and incorporating a copy of the notification and signed certification statement into the SWPPP, and the residence has been transferred to the homeowner. 2. The notice of termination shall be submitted no later than 30 days after one of the above conditions in subdivision 1 of this subsection is met. 3. Termination of authorization to discharge for the conditions set forth in subdivision 1 a of this subsection shall be effective upon notification from the department that the provisions of subdivision 1 a of this subsection have been met or 60 days after submittal of a complete and accurate notice of termination in accordance with 9VAC25-880-60 C, whichever occurs first. 4. Authorization to discharge terminates at midnight on the date that the notice of termination is submitted for the conditions set forth in subdivisions 1 b through 1 d of this subsection unless otherwise notified by the VSMP authority or department. 5. The notice of termination shall be signed in accordance with Part III K of this general permit. G. Water quality protection. 1. The operator shall select, install, implement, and maintain control measures as identified in the SWPPP at the construction site that minimize pollutants in the discharge as necessary to ensure that the operator's discharge does not cause or contribute to an excursion above any applicable water quality standard. 2. If it is determined by the department that the operator's discharges are causing, have reasonable potential to cause, or are contributing to an excursion above any applicable water quality standard, the department, in consultation with the VSMP authority, may take appropriate enforcement action and require the operator to: a. Modify or implement additional control measures in accordance with Part II C to adequately address the identified water quality concerns; b. Submit valid and verifiable data and information that are representative of ambient conditions and indicate that the receiving water is attaining water quality standards; or Page 6 of 26 c. Submit an individual permit application in accordance with 9VAC25-870-410 B 3. All written responses required under this chapter shall include a signed certification consistent with Part III K. PART II STORMWATER POLLUTION PREVENTION PLAN A. Stormwater pollution prevent plan. A stormwater pollution prevention plan (SWPPP) shall be developed prior to the submission of a registration statement and implemented for the construction activity, including any support activity, covered by this general permit. SWPPPs shall be prepared in accordance with good engineering practices. Construction activities that are part of a larger common plan of development or sale and disturb less than one acre may utilize a SWPPP template provided by the department and need not provide a separate stormwater management plan if one has been prepared and implemented for the larger common plan of development or sale. 2. The SWPPP requirements of this general permit may be fulfilled by incorporating by reference other plans such as a spill prevention control and countermeasure (SPCC) plan developed for the site under § 311 of the federal Clean Water Act or best management practices (BMP) programs otherwise required for the facility provided that the incorporated plan meets or exceeds the SWPPP requirements of Part II B. All plans incorporated by reference into the SWPPP become enforceable under this general permit. If a plan incorporated by reference does not contain all of the required elements of the SWPPP, the operator shall develop the missing elements and include them in the SWPPP. 3. Any operator that was authorized to discharge under the general permit effective July 1, 2014, and that intends to continue coverage under this general permit, shall update its stormwater pollution prevention plan to comply with the requirements of this general permit no later than 60 days after the date of coverage under this general permit. B. Contents. The SWPPP shall include the following items: 1. General information. a. A signed copy of the registration statement, if required, for coverage under the general VPDES permit for discharges of stormwater from construction activities; b. Upon receipt, a copy of the notice of coverage under the general VPDES permit for discharges of stormwater from construction activities (i.e., notice of coverage letter); c. Upon receipt, a copy of the general VPDES permit for discharges of stormwater from construction activities; d. A narrative description of the nature of the construction activity, including the function of the project (e.g., low density residential, shopping mall, highway, etc.); e. A legible site plan identifying: Page 7 of 26 (1) Directions of stormwater flow and approximate slopes anticipated after major grading activities; (2) Limits of land disturbance including steep slopes and natural buffers around surface waters that will not be disturbed; (3) Locations of major structural and nonstructural control measures, including sediment basins and traps, perimeter dikes, sediment barriers, and other measures intended to filter, settle, or similarly treat sediment, that will be installed between disturbed areas and the undisturbed vegetated areas in order to increase sediment removal and maximize stormwater infiltration; (4) Locations of surface waters; (5) Locations where concentrated stormwater is discharged; (6) Locations of any support activities, including (i) areas where equipment and vehicle washing, wheel wash water, and other wash water is to occur; (ii) storage areas for chemicals such as acids, fuels, fertilizers, and other lawn care chemicals; (iii) concrete wash out areas; (iv) vehicle fueling and maintenance areas; (v) sanitary waste facilities, including those temporarily placed on the construction site; and (vi) construction waste storage; and (7) When applicable, the location of the on -site rain gauge or the methodology established in consultation with the VSMP authority used to identify measurable storm events for inspection as allowed by Part II G 2 a (1) (ii) or Part II G 2 b (2). 2. Erosion and sediment control plan. a. An erosion and sediment control plan designed and approved in accordance with the Virginia Erosion and Sediment Control Regulations (9VAC25-840), an "agreement in lieu of a plan" as defined in 9VAC25-840-10 from the VESCP authority, or an erosion and sediment control plan prepared in accordance with annual standards and specifications approved by the department. b. All erosion and sediment control plans shall include a statement describing the maintenance responsibilities required for the erosion and sediment controls used. c. An approved erosion and sediment control plan, "agreement in lieu of a plan," or erosion and sediment control plan prepared in accordance with department -approved annual standards and specifications, implemented to (1) Control the volume and velocity of stormwater runoff within the site to minimize soil erosion; (2) Control stormwater discharges, including peak flow rates and total stormwater volume, to minimize erosion at outlets and to minimize downstream channel and stream bank erosion; Page 8 of 26 (3) Minimize the amount of soil exposed during the construction activity; (4) Minimize the disturbance of steep slopes; (5) Minimize sediment discharges from the site in a manner that addresses (i) the amount, frequency, intensity, and duration of precipitation; (ii) the nature of resulting stormwater runoff; and (iii) soil characteristics, including the range of soil particle sizes present on the site; (6) Provide and maintain natural buffers around surface waters, direct stormwater to vegetated areas to increase sediment removal, and maximize stormwater infiltration, unless infeasible; (7) Minimize soil compaction and, unless infeasible, preserve topsoil; (8) Ensure initiation of stabilization activities, as defined in 9VAC25-880-1, of disturbed areas immediately whenever any clearing, grading, excavating, or other land - disturbing activities have permanently ceased on any portion of the site, or temporarily ceased on any portion of the site and will not resume for a period exceeding 14 days; and (9) Utilize outlet structures that withdraw stormwater from the surface (i.e., above the permanent pool or wet storage water surface elevation), unless infeasible, when discharging from sediment basins or sediment traps. 3. Stormwater management plan. a. Except for those projects identified in Part II B 3 b, a stormwater management plan approved by the VSMP authority as authorized under the Virginia Stormwater Management Program (VSMP) Regulation (9VAC25-870), or an "agreement in lieu of a stormwater management plan" as defined in 9VAC25-870-10 from the VSMP authority, or a stormwater management plan prepared in accordance with annual standards and specifications approved by the department. b. For any operator meeting the conditions of 9VAC25-870-47 B of the VSMP regulation, an approved stormwater management plan is not required. In lieu of an approved stormwater management plan, the SWPPP shall include a description of, and all necessary calculations supporting, all post -construction stormwater management measures that will be installed prior to the completion of the construction process to control pollutants in stormwater discharges after construction operations have been completed. Structural measures should be placed on upland soils to the degree possible. Such measures must be designed and installed in accordance with applicable VESCP authority, VSMP authority, state, and federal requirements, and any necessary permits must be obtained. 4. Pollution prevention plan. A pollution prevention plan that addresses potential pollutant - generating activities that may reasonably be expected to affect the quality of stormwater discharges from the construction activity, including any support activity. The pollution prevention plan shall; a. Identify the potential pollutant -generating activities and the pollutant that is expected to be exposed to stormwater; Page 9 of 26 b. Describe the location where the potential pollutant -generating activities will occur, or if identified on the site plan, reference the site plan; c. Identify all nonstormwater discharges, as authorized in Part I E of this general permit, that are or will be commingled with stormwater discharges from the construction activity, including any applicable support activity; d. Identify the person responsible for implementing the pollution prevention practice or practices for each pollutant -generating activity (if other than the person listed as the qualified personnel); e. Describe the pollution prevention practices and procedures that will be implemented to: (1) Prevent and respond to leaks, spills, and other releases including (i) procedures for expeditiously stopping, containing, and cleaning up spills, leaks, and other releases; and (ii) procedures for reporting leaks, spills, and other releases in accordance with Part III G; (2) Prevent the discharge of spilled and leaked fuels and chemicals from vehicle fueling and maintenance activities (e.g., providing secondary containment such as spill berms, decks, spill containment pallets, providing cover where appropriate, and having spill kits readily available); (3) Prevent the discharge of soaps, solvents, detergents„ and wash water from construction materials, including the clean-up of stucco, paint, form release oils, and curing compounds (e.g., providing (i) cover (e.g., plastic sheeting or temporary roofs) to prevent contact with stormwater; (ii) collection and proper disposal in a manner to prevent contact with stormwater; and (iii) a similarly effective means designed to prevent discharge of these pollutants);.. (4) Minimize the discharge of pollutants from vehicle and equipment washing, wheel wash water, and other types of washing (e.g., locating activities away from surface waters and stormwater inlets or conveyance and directing wash waters to sediment basins or traps, using filtration devices such as filter bags or sand filters, or using similarly effective controls); (5) Direct concrete wash water into a leak -proof container or leak -proof settling basin. The container or basin shall be designed so that no overflows can occur due to inadequate sizing or precipitation. Hardened concrete wastes shall be removed and disposed of in a manner consistent with the handling of other construction wastes. Liquid concrete wastes shall be removed and disposed of in a manner consistent with the handling of other construction wash waters and shall not be discharged to surface waters; (6) Minimize the discharge of pollutants from storage, handling, and disposal of construction products, materials, and wastes including (i) building products such as asphalt sealants, copper flashing, roofing materials, adhesives, and concrete admixtures; (ii) pesticides, herbicides, insecticides, fertilizers, and landscape Page 10 of 26 materials; and (iii) construction and domestic wastes such as packaging materials, scrap construction materials, masonry products, timber, pipe and electrical cuttings, plastics, Styrofoam, concrete, and other trash or building materials; (7) Prevent the discharge of fuels, oils, and other petroleum products, hazardous or toxic wastes, waste concrete, and sanitary wastes; (8) Address any other discharge from the potential pollutant -generating activities not addressed above; (9) Minimize the exposure of waste materials to precipitation by closing or covering waste containers during precipitation events and at the end of the business day, or implementing other similarly effective practices. Minimization of exposure is not required in cases where the exposure to precipitation will not result in a discharge of pollutants; and f. Describe procedures for providing pollution prevention awareness of all applicable wastes, including any wash water, disposal practices, and applicable disposal locations of such wastes, to personnel in order to comply with the conditions of this general permit. The operator shall implement the procedures described in the SWPPP. 5. SWPPP requirements for discharges to nutrient and sediment impaired waters. For discharges to surface waters (i) identified as impaired in the 2016 § 305(b)1303(d) Water Quality Assessment Integrated Report or (ii) with an applicable TMDL wasteload allocation established and approved prior to the term of this general permit for sediment for a sediment - related parameter (i.e., total suspended solids or turbidity) or nutrients (i.e., nitrogen or phosphorus), the operator shall: a. Identify the impaired waters, approved TMDLs, and pollutants of concern in the SWPPP; and b. Provide clear direction in the SWPPP that: (1) Permanent or temporary soil stabilization shall be applied to denuded areas within seven days after final grade is reached on any portion of the site; (2) Nutrients shall be applied in accordance with manufacturer's recommendations or an approved nutrient management plan and shall not be applied during rainfall events; and (3) A modified inspection schedule shall be implemented in accordance with Part II G 2 a. 6. SWPPP requirements for discharges to polychlorinated biphenyl (PCB) impaired waters. For discharges from construction activities that include the demolition of any structure with at least 10,000 square feet of floor space built or renovated before January 1, 1980, to surface waters (i) identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated Report or (ii) with an applicable TMDL wasteload allocation established and approved prior to the term of this general permit for PCB, the operator shall: Page 11 of 26 a. Identify the impaired waters, approved 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. 2. The SWPPP shall be amended if, during inspections or investigations by the operator's qualified personnel, or by local, state, or federal officials, it is determined that the existing control measures are ineffective in minimizing pollutants in discharges from the construction activity. Revisions to the SWPPP shall include additional or modified control measures designed and implemented to correct problems identified. If approval by the VESCP authority, VSMP authority, or department is necessary for the control measure, revisions to the SWPPP shall be completed no later than seven calendar days following approval. Implementation of these additional or modified control measures shall be accomplished as described in Part II H. Page 12 of 26 3. The SWPPP shall clearly identify the contractors that will implement and maintain each control measure identified in the SWPPP. The SWPPP shall be amended to identify any new contractor that will implement and maintain a control measure. 4. The operator shall update the SWPPP as soon as possible but no later than seven days following any modification to its implementation. All modifications or updates to the SWPPP shall be noted and shall include the following items: a. A record of dates when: (1) Major grading activities occur; (2) Construction activities temporarily or permanently cease on a portion of the site; and (3) Stabilization measures are initiated; b. Documentation of replaced or modified controls where periodic inspections or other information have indicated that the controls have been used inappropriately or incorrectly and were modified; c. Areas that have reached final stabilization and where no further SWPPP or inspection requirements apply; d. All properties that are no longer under the legal control of the operator and the dates on which the operator no longer had legal control over each property; e. The date of any prohibited discharges, the discharge volume released, and what actions were taken to minimize the impact of the release; f. Measures taken to prevent the reoccurrence of any prohibited discharge; and g. Measures taken to address any evidence identified as a result of an inspection required under Part II G. 5. Amendments, modifications, or updates to the SWPPP shall be signed in accordance with Part III K. D. Public notification. Upon commencement of land disturbance, the operator shall post conspicuously a copy of the notice of coverage letter near the main entrance of the construction activity. For linear projects, the operator shall post the notice of coverage letter at a publicly accessible location near an active part of the construction project (e.g., where a pipeline crosses a public road). The operator shall maintain the posted information until termination of general permit coverage as specified in Part I F. E. SWPPP availability. 1. Operators with day-to-day operational control over SWPPP implementation shall have a copy of the SWPPP available at a central location on -site for use by those identified as having responsibilities under the SWPPP whenever they are on the construction site. Page 13 of 26 2. The operator shall make the SWPPP and all amendments, modifications, and updates available upon request to the department, the VSMP authority, the EPA, the VESCP authority, local government officials, or the operator of a municipal separate storm sewer system receiving discharges from the construction activity. If an on -site location is unavailable to store the SWPPP when no personnel are present, notice of the SWPPP's location shall be posted near the main entrance of the construction site. 3. The operator shall make the SWPPP available for public review in an electronic format or in hard copy. Information for public access to the SWPPP shall be posted and maintained in accordance with Part II D. If not provided electronically, public access to the SWPPP may be arranged upon request at a time and at a publicly accessible location convenient to the operator or his designee but shall be no less than once per month and shall be during normal business hours. Information not required to be contained within the SWPPP by this general permit is not required to be released. F. SWPPP implementation. The operator shall implement the SWPPP and subsequent amendments, modifications, and updates from commencement of land disturbance until termination of general permit coverage as specified in Part I F. All control measures shall be properly maintained in effective operating condition in accordance with good engineering practices and, where applicable, manufacturer specifications. If a site inspection required by Part II G identifies a control measure that is not operating effectively, corrective actions shall be completed as soon as practicable, but no later than seven days after discovery or a longer period as established by the VSMP authority, to maintain the continued effectiveness of the control measures. 2. If site inspections required by Part Il G identify an existing control measure that needs to be modified or if an additional or alternative control measure is necessary for any reason, implementation shall be completed prior to the next anticipated measurable storm event. If implementation prior to the next anticipated measurable storm event is impracticable, then additional or alternative control measures shall be implemented as soon as practicable, but no later than seven days after discovery or a longer period as established by the VSMP authority. G. SWPPP Inspections. 1. Personnel responsible for on -site and off -site inspections. Inspections required by this general permit shall be conducted by the qualified personnel identified by the operator in the SWPPP. The operator is responsible for ensuring that the qualified personnel conduct the inspection. 2. Inspection schedule. a. For construction activities that discharge to a surface water identified in Part II B 5 and B 6 as impaired or having an approved TMDL or Part I B 7 as exceptional, the following inspection schedule requirements apply: (1) Inspections shall be conducted at a frequency of (i) at least once every four business days or (ii) at least once every five business days and no later than 24 hours following a measurable storm event. In the event that a measurable storm event occurs when Page 14 of 26 3 there are more than 24 hours between business days, the inspection shall be conducted on the next business day; and (2) Representative inspections as authorized in Part II G 2 d shall not be allowed. b. Except as specified in Part II G 2 a, inspections shall be conducted at a frequency of: (1) At least once every five business days; or (2) At least once every 10 business days and no later than 24 hours following a measurable storm event. In the event that a measurable storm event occurs when there are more than 24 hours between business days, the inspection shall be conducted on the next business day. c. Where areas have been temporarily stabilized or land -disturbing activities will be suspended due to continuous frozen ground conditions and stormwater discharges are unlikely, the inspection frequency described in Part II G 2 a and 2 b may be reduced to once per month. If weather conditions (such as above freezing temperatures or rain or snow events) make discharges likely, the operator shall immediately resume the regular inspection frequency. d. Except as prohibited in Part II G 2 a (2), representative inspections may be utilized for utility line installation, pipeline construction, or other similar linear construction activities provided that:. (1) Temporary or permanent soil stabilization has been installed and vehicle access may compromise the temporary or permanent soil stabilization and potentially cause additional land disturbance increasing the potential for erosion; (2) Inspections occur on the same frequency as other construction activities; (3) Control measures are inspected along the construction site 0.25 miles above and below each access point (i.e., where a roadway, undisturbed right-of-way, or other similar feature intersects the construction activity and access does not compromise temporary or permanent soil stabilization); and (4) Inspection locations are provided in the inspection report required by Part II G. e. If adverse weather causes the safety of the inspection personnel to be in jeopardy, the inspection may be delayed until the next business day on which it is safe to perform the inspection. Any time inspections are delayed due to adverse weather conditions, evidence of the adverse weather conditions shall be included in the SWPPP with the dates of occurrence. 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 gills, 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 (g) 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 Park II G 3 a (6) exists; g. The locations where any additional control measure is needed; h. A list of corrective actions required (including any changes to the SWPPP that are necessary) as a result of the inspection or to maintain permit compliance; Documentation of any corrective actions required from a previous inspection that have not been implemented; and j. The date and signature of the qualified personnel and the operator or its duly authorized representative. 5. The inspection report shall be included into the SWPPP no later than four business days after the inspection is complete. 6. The inspection report and any actions taken in accordance with Part II shall be retained by the operator as part of the SWPPP for at least three years from the date that general permit coverage expires or is terminated. The inspection report shall identify any incidents of noncompliance. Where an inspection report does not identify any incidents of noncompliance, the report shall contain a certification that the construction activity is in compliance with the SWPPP and this general permit. The report shall be signed in accordance with Part III K of this general permit. H. Corrective actions. 1. The operator shall implement the corrective actions identified as a result of an inspection as soon as practicable but no later than seven days after discovery or a longer period as approved by the VSMP authority. If approval of a corrective action by a regulatory authority (e.g., VSMP authority, VESCP authority, or the department) is necessary, additional control measures shall be implemented to minimize pollutants in stormwater discharges until such approvals can be obtained. 2. The operator may be required to remove accumulated sediment deposits located outside of the construction activity covered by this general permit as soon as practicable in order to minimize environmental impacts. The operator shall notify the VSMP authority and the department as well as obtain all applicable federal, state, and local authorizations, approvals, and permits prior to the removal of sediments accumulated in surface waters including wetlands. Page 18 of 26 PART III CONDITIONS APPLICABLE TO ALL VPDES PERMITS NOTE: 'Discharge monitoring is not required for this general permit. If the operator chooses to monitor stormwater discharges or control measures, the operator shall comply with the requirements of subsections A, B, and C, as appropriate. A. Monitoring. Samples and measurements taken for the purpose of monitoring shall be representative of the monitoring activity. 2. Monitoring shall be conducted according to procedures approved under 40 CFR Part 136 or alternative methods approved by the U.S. Environmental Protection Agency, unless other procedures have been specified in this general permit. Analyses performed according to test procedures approved under 40 CFR Part 136 shall be performed by an environmental laboratory certified under regulations adopted by the Department of General Services (1 VAC30-45 or 1 VAC3046). 3. The operator shall periodically calibrate and perform maintenance procedures on all monitoring and analytical instrumentation at intervals that will ensure accuracy of measurements. B. Records. 1. Monitoring records and reports shall include: a. The date, exact place, and time of sampling or measurements; b. The individuals who performed the sampling or measurements; c. The dates and times analyses were performed; d. The individuals who performed the analyses; e. The analytical techniques or methods used; and f. The results of such, analyses. 2. The operator shall retain records of all monitoring information, including all calibration and maintenance records and all original strip chart recordings for continuous monitoring instrumentation, copies of all reports required by this general permit, and records of all data used to complete the registration statement for this general permit, for a period of at least three years from the date of the sample, measurement, report or request for coverage. This period of retention shall be extended automatically during the course of any unresolved litigation regarding the regulated activity or regarding control standards applicable to the operator, or as requested by the board. C. Reporting monitoring results. Page 19 of 26 1. The operator shall update the SWPPP to include the results of the monitoring as may be performed in accordance with this general permit, unless another reporting schedule is specified elsewhere in this general permit. 2. Monitoring results shall be reported on a discharge monitoring report (DMR); on forms provided, approved or specified by the department; or in any format provided that the date, location, parameter, method, and result of the monitoring activity are included. 3. If the operator monitors any pollutant specifically addressed by this general permit more frequently than required by this general permit using test procedures approved under 40 CFR Part 136 or using other test procedures approved by the U.S. Environmental Protection Agency or using procedures specified in this general permit, the results of this monitoring shall be included in the calculation and reporting of the data submitted in the DMR or reporting form specified by the department. 4. Calculations for all limitations which require averaging of measurements shall utilize an arithmetic mean unless otherwise specified in this general permit. D. Duty to provide information. The operator shall furnish, within a reasonable time, any information which the board may request to determine whether cause exists for terminating this general permit coverage or to determine compliance with this general permit. The board, department, EPA, or VSMP authority may require the operator to furnish, upon request, such plans, specifications, and other pertinent information as may be necessary to determine the effect of the wastes from his discharge on the quality of surface waters, or such other information as may be necessary to accomplish the purposes of the CWA and the Virginia Stormwater Management Act. The operator shall also furnish to the board, department, EPA, or VSMP authority, upon request, copies of records required to be kept by this general permit. E. Compliance schedule reports. Reports of compliance or noncompliance with, or any progress reports on, interim and final requirements contained in any compliance schedule of this general permit shall be submitted no later than 14 days following each schedule date. F. Unauthorized stormwater discharges. Pursuant to § 62.1-44.5 of the Code of Virginia, except in compliance with a state permit issued by the department, it shall be unlawful to cause a stormwater discharge from a construction activity. G. Reports of unauthorized discharges. Any operator who discharges or causes or allows a discharge of sewage, industrial waste, other wastes or any noxious or deleterious substance or a hazardous substance or oil in an amount equal to or in excess of a reportable quantity established under either 40 CFR Part 110, 40 CFR Part 117, 40 CFR Part 302, or § 62.1-44.34:19 of the Code of Virginia that occurs during a 24-hour period into or upon surface waters or who discharges or causes or allows a discharge that may reasonably be expected to enter surface waters, shall notify the Department of Environmental Quality of the discharge immediately upon discovery of the discharge, but in no case later than within 24 hours after said discovery. A written report of the unauthorized discharge shall be submitted to the department and the VSMP authority within five days of discovery of the discharge. The written report shall contain: 1. A description of the nature and location of the discharge; 2. The cause of the discharge; Page 20 of 26 3. The date on which the discharge occurred; 4. The length of time that the discharge continued; 5. The volume of the discharge; 6. If the discharge is continuing, how long it is expected to continue; 7. If the discharge is continuing, what the expected total volume of the discharge will be; and 8. Any steps planned or taken to reduce, eliminate and prevent a recurrence of the present discharge or any future discharges not authorized by this general permit. Discharges reportable to the department and the VSMP authority under the immediate reporting requirements of other regulations are exempted from this requirement. H. Reports of unusual or extraordinary discharges. If any unusual or extraordinary discharge including a "bypass" or "upset," as defined in this general permit, should occur from a facility and the discharge enters or could be expected to enter surface waters, the operator shall promptly notify, in no case later than within 24 hours, the department and the VSMP authority by telephone after the discovery of the discharge. This notification shall provide all available details of the incident, including any adverse effects on aquatic life and the known number of fish killed. The operator shall reduce the report to writing and shall submit it to the department and the VSMP authority within five days of discovery of the discharge in accordance with Part III 1 2. 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. 1. Reports of noncompliance. The operator shall report any noncompliance which may adversely affect surface waters or may endanger public health. 1. An oral report to the department and the VSMP authority shall be provided within 24 hours from the time the operator becomes aware of the circumstances. The following shall be included as information that shall be reported within 24 hours under this subdivision: a. Any unanticipated bypass; and b. Any upset that causes a discharge to surface waters. 2. A written report shall be submitted within five days and shall contain: a. A description of the noncompliance and its cause; Page 21 of 26 b. The period of noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; and c. Steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance. The department may waive the written report on a case -by -case basis for reports of noncompliance under Part III I if the oral report has been received within 24 hours and no adverse impact on surface waters has been reported. 3. The operator shall report all instances of noncompliance not reported under (Part III 1 1 or 2 in writing as part of the SWPPP. The reports shall contain the information listed in Part III 12. NOTE: The reports required in Part III G, H and I shall be made to the department and the VSMP authority. Reports may be made by telephone, email, or by fax. For reports outside normal working hours, leaving a recorded message shall fulfill the immediate reporting requirement. For emergencies, the Virginia department of Emergency Management maintains a 24-hour telephone service at 1-800-468-8892. 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 Ill 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 Ill 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 Ill K 1 or 2 shall make the following certification: 5. "1 certify under penalty of law that I have read and understand this document and that this document and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant Page 23 of 26 penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." L. Duty to comply. The operator shall comply with all conditions of this general permit. Any state permit noncompliance constitutes a violation of the Virginia Stormwater Management Act and the Clean Water Act, except that noncompliance with certain provisions of this general permit may constitute a violation of the Virginia Stormwater Management Act but not the Clean Water Act. Permit noncompliance is grounds for enforcement action; for state permit coverage, termination, revocation and reissuance, or modification; or denial of a state permit renewal application. The operator shall comply with effluent standards or prohibitions established under § 307(a) of the Clean Water Act for toxic pollutants within the time provided in the regulations that establish these standards or prohibitions or standards for sewage sludge use or disposal, even if this general permit has not yet been modified to incorporate the requirement. M. Duty to reapply. If the operator wishes to continue an activity regulated by this general permit after the expiration date of this general permit, the operator shall submit a new registration statement at least 60 days before the expiration date of the existing general permit, unless permission for a later date has been granted by the board. The board shall not grant permission for registration statements to be submitted later than the expiration date of the existing general permit. N. Effect of a state permit. This general permit does not convey any property rights in either real or ,personal property or any exclusive privileges, nor does it authorize any injury to private property or invasion of personal rights, or any infringement of federal, state or local law or regulations. U. 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 Glean 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. ail 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. 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 9VAC25-870-1 g, 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 I II Y 2, a state permit may be transferred by the operator to a new operator only if the state permit has been modified or revoked and reissued, or a minor modification made, to identify the new operator and incorporate such other requirements as may be necessary under the Virginia Stormwater Management Act and the Clean Water Act. 2. As an alternative to transfers under Part III Y 1, this state permit may be automatically transferred to a new operator if: a. The current operator notifies the department at least 30 days in advance of the proposed transfer of the title to the facility or property; b. The notice includes a written agreement between the existing and new operators containing a specific date for transfer of state permit responsibility, coverage, and liability between them; and c. The department does not notify the existing operator and the proposed new operator of its intent to modify or revoke and reissue the state permit. If this notice is not received, the transfer is effective on the date specified in the agreement mentioned in Part III Y 2 b. 3. For ongoing construction activity involving a change of operator, the new operator shall accept and maintain the existing SWPPP, or prepare and implement a new SWPPP prior to taking over operations at the site. Z. Severability. The provisions of this general permit are severable, and if any provision of this general permit or the application of any provision of this state permit to any circumstance, is held invalid, the application of such provision to other circumstances and the remainder of this general permit shall not be affected thereby. Section 12. Inspection lags Issued 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Proffit Rd TH North SWPPP Gradinq Loq Inspection: Date Time Instructions: Fill out this sheet as grading events occur. Record grading events and their respective locations on this log. Summary: Event on record: Location(s) on Site; • Major Grading Activities: ■ Construction Activities Cease: o Temporarily: o Permanently: ■ Stabilization Measures Initiated: ■ Other Grading Activity Notes: Inspector Signature Date operator Signature Date Inspections shall be completed at least once every 5 business days and no later than 48 hours following a measurable storm event. In the event that a measurable storm event occurs when there are more than 48 hours between business days, the inspection shall be conducted on the next business day. Representative inspections used by utility line installation, pipeline construction, or other similar linear construction activities shall inspect all outfalls discharging to exceptional waters. Where an inspection report does not identify any incidents of non-compliance, the report shall contain a certification that the construction activity is in compliance with the SWPPP and general permit. Inspection requirements: Describe discharges at time of inspection Record land -disturbing activities outside approved ESOP Inspect proper installation, maintenance needs, and effectiveness of: Perimeter controls, such as silt fence Soil stockpiles and borrow areas — Completed earthen structures (dams, dikes, ditches, diversions, etc.) Cut and fill slopes — Sediment basins and traps, sediment barriers, etc. Channels, flumes, slope drains, etc. Operational storm inlets Construction vehicle access routes Areas at final grade or to remain dormant for more than 14 days: — Initiate stabilization activities Complete stabilization activities within 7 days of stopping work Evidence that ESOP has not been properly implemented: — 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; Sediment laden or turbid flows of stormwater that have not been filtered or settled to remove sediments prior to discharge; — Sediment deposition in areas that drain to unprotected stormwater inlets or catch basins that discharge to surface waters. Inlets and catch basins with failing sediments controls due to improper installation, lack of maintenance, or inadequate design are considered unprotected; Sediment deposition on any property (including public and private streets) outside of the construction activity covered by this general permit; Required stabilization has not been initiated or completed on portions of the site; 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; 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 Land disturbance outside of the approved area to be disturbed Pollutant generating activities from PPP: implementation, maintenance, and effectiveness Pollutant generating activities not identified in PPP Proffit Rd TH North SWPPP Inspection Loq Inspection: Last Rainfall: Date Time Date Rainfall Amount Summary (requirements on back of sheet): Locations of: • Prohibited discharges • Controls needing maintenance • Failed controls: Evidence that ESOP has not been properly implemented: • Additional measures needed: Corrective actions required: U'nimptemented corrective actions from previous inspection: Inspector Signature Date Operator Signature Date "If this report does not identify any incidents of non-compliance, I certify that the construction activity is in compliance with the SWPPP and Construction General Permit."