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Home My WebLink AboutSDP202200029 Review Comments Final Site Plan and Comps. 2022-05-27Ben Holt Senior Planner, Planning County of Albemarle bholt(rDalbemarle.org _ Community Development Department Telephone: (434) 296-5832 ext. 3443 Memorandum To: Ammy George, ageorge(rDroudabush.com Date: May 27, 2022 Re: SDP202100029 S.L. Williamson Asphalt Plant (at Red Hill Quarry) — Final Site Plan — Review Comments All comments in the attached letter must be addressed prior to Final Site Plan approval: [Each comment is preceded by the applicable reference, which is to the Subdivision/Zoning Ordinances unless otherwise specified]. Albemarle County Planning Services (Planner) — Ben Holt, bholt(cbalbemarle.org 1. [32.6.2.A] — General info. Include conditions of approval for SP2019-09. 2. [32.6.2.A] — General info. Update Critical Slopes note from under review to approved. Please contact Ben Holt in the Planning Division by using bholtCcDalbemarle.org or 434-296-5832 ext. 3443 for further information. Comments from Other Reviewers: Albemarle County Engineering Division — John Anderson, landerson2oalbemarle.org — requested changes, see attached. Albemarle County E911 Services — Andrew Slack, aslackC&albemarle.orq — no objection. Albemarle County Building Inspections — Betty Slough, bslough0_albemarle.org — no objection. Albemarle County Department of Fire & Rescue — Howard Lagomarsino, hlagomarsino(rDalbemarle.org — no objection. Virginia Department of Transportation (VDOT) — Willis Bedsaul, willis.bedsauIC&vdot.virginia.gov - no objection, letter attached. Virginia Department of Health (VDH) — Alan Mazurowski - alan.mazurowskiOvdh.virginia.gov — no objection, letter attached. WWW.ALBEMARLE.ORG 401 McIntire Road, North Wing, I Charlottesville, VA 22902-4579 From: John Anderson To: Ben H21S Cc: Ammy George; Jim Taggart Subject: Planning Application Review for SDP202200029 S.L. WILLIAMSON ASPHALT PLANT AT RED HILL QUARRY - FINAL - DIGITAL . [ Engineering review comments] Date: Sunday, May 22, 2022 3:59:52 AM The Review for the following application has been completed: Application Number = SDP202200029 Reviewer = John Anderson Review Status = Requested Changes Completed Date = 05/22/2022 This email was sent from County View Production. Ben, Thanks for your patience. I copied RGA since: we anticipate WPO plan submittal soon; Engineering hopes to review it, once submitted, as expeditiously as possible; S.L. Williamson plant upgrades are critical; and I am away with infrequent response likely, now thru 7-Jun. I hope it was okay to cc: Ammy and Jim. Thanks, again. Ammy, Jim, Please feel free to text brief notice of WPO plan submittal to: 434.906-1506 ( if submitted while I am away). `SL Williamson Red Hill Asphalt WPO plan submittal,' or text to that effect should alert me. I may be able to review or respond prior to 7-Jun, but will be out -of -office thru 7-Jun. Thank you, both. Cy'RIZIMEr1 1. Sheet 4: a. Provide existing spot shot elevations to delineate /establish there is an existing berm along west edge of (S.L. Williamson) lease area not precisely reflected by existing topographic contours. FSP does not indicate proposed change to berm along west edge of lease area. Without such grade change, existing topography will direct site storm runoff to proposed settling basins, which then in turn may (on rare occasion) fill to the point that detained volume crests proposed settling basin rim (please provide spot elev. for each proposed settling basin to establish low point of rim, sheet 8 , at which point, given existing topography, Engineering anticipates shallow flooding of the asphalt plant could occur (as it may at present) prior to breaching overall perimeter lease area berm. This is important: existing perimeter grade prevents storm runoff reaching a stream to the west without first passing through a settling basin. The manner of settling basin pass -through is via shallow flooding with detained basin volume first breaching existing settling basin rim, and then (which may occur infrequently, or perhaps never during a 10-yr storm event) ponded elevation may rise until such point detained runoff may crest lease area perimeter elevation. During site visit 4/15/22, Engineering observed no trace or pattern of detained storm runoff escaping lease area. Rather, ponded runoff level does not appear to exceed existing settling basin capacity. Drawdown of existing settling basin ponded volume appears to occur via infiltration to earth, or evaporation. Ref email to Applicant (J. Anderson to Planning Div. coordinator /RGA: April 19, 2022 4:27 PM; ISP/FSP review comments, SDP202100092) for additional information. The purpose of discussing settling basin elevations in detail is to affirm Engineering understanding of design, which is: site storm runoff will in fact reach one of two proposed settling basins depicted on sheet 8 prior to reaching the stream to the west (unnamed tributary to North Fork Hardware River). Also, item 2 , below (from 4/19/22 Engineering review comment email). b. Remainder of Engineering review comments for SDP202200029 mirror text sent as April 19, 2022 4:27 PM email; specifically: 2. -C7 [Now Sheet g/Grading Plan with SDP202200029] a. Provide spot elevations that indicate all site storm runoff reaches proposed settling basins, and that establishes relative grade as close as possible to existing vertical interval between rims of existing settling basins and perimeter site grade before slope falls steeply to the creek. b. With WPO plan: i. Provide mitigation plan (with proposed plantings) for proposed improvements within landward 50' of stream buffer. ii. Compare (via table) existing volume and proposed volume of settling basins. Total proposed settling basin volume should exceed total existing settling basin volume. iii. Recommend submit WPO plan /application at earliest convenience. iv. Note: site visit 15-Apr by county engineering indicates volume of existing settling basins, existing basin rim elev., inlet design, site perimeter elevation, and circulation patterns appear to provide adequate storm runoff management for routine operations at the plant, and as discussed /outlined in correspondence with RGA (email, Friday, April 15, 2022 1:03 PM), design that mimics current basin volume, rim elevation/s, and site perimeter elevation are goals that may alleviate nearly entirely storm runoff concerns relative to adjacent stream water quality. 3. An approved WPO plan (ESC, SWM, Mitigation) is required prior to FSP approval. 4. Settling basins are not SWM facilities, but rather serve industrial site runoff settling /filtering function. Water evaporates from basins. Ex. settling basins have no outlet. Engineering anticipates similar design with WPO plan: details that provide basin volume, profiles, with no outlet.' " John E. Anderson, PE I Civil Engineer II Department of Community Development I County of Albemarle, Virginia 401 McIntire Road I Charlottesville, VA 22902 434 296 SR32 ert 3069 Blue Ridge HeaRh Dlshlcl VIRGINIA DEPARTMENT OF HENTH 1 4 Ben Holt, Senior Planner II Albemarle County Community Development 401 McIntire Road Charlottesville, VA 22902 RE: Williamson Asphalt Plant at Red Hill Quarry Final Site Plan SDP202200029 Tax Map: 88-18 Mr. Holt: ChabMSNN/Albemarle Heaeh DepaAm@W 1138 Rose Hil Drive Chorlolfesvile, VA 22903 ofte 434-972-6200 1 tax 434-972-4310 May 27, 2022 As requested, I have reviewed the Preliminary Plat referenced above, dated 4/18/22, for compliance with VDH regulatory requirements. Permitting will be necessary when the pump & haul holding tank is replaced, but for the purposes of this review, I have no objection to the site plan and recommend approval. If there are any questions or concerns, please give me a call, 434-972-4306. Sincerely, Alan Mazurowski Environmental Health Supervisor Blue Ridge Health District alan.mazurowski(a,vdh.vir ig nia.gov (Z) COMMONWEALTH of VIRGINIA DEPARTMENT OF TRANSPORTATION Stephen C. Brich, P.E. 1401 East Broad Street Commissioner Richmond, Virginia 23219 May 13, 2022 Ben Holt County of Albemarle Department of Community Development 401 McIntire Road Charlottesville, VA 22902 Re: SDP-2022-00029- SL Williamson Asphalt Plant— Final Site Plan Dear Mr. Holt: (804)786,2701 Fax: (804) 786,2940 The Department of Transportation, Charlottesville Residency Transportation and Land Use Section, has reviewed the above referenced plan as submitted by Roudabush Gale & Assoc., Inc., dated December 07, 2021, revised April 18, 2022, and find it to be generally acceptable. If further information is desired, please contact Willis C. Bedsaul at 434-422-9866. A VDOT Land Use Permit will be required prior to any work within the right of way. The owner/developer must contact the Charlottesville Residency land Use Section at (434) 422-9399 for information pertaining to this process. Sincerely, John Wilson, P.E. Assistant Resident Engineer -Land Use Charlottesville Residency VirginiaDOT.org WE KEEP VIRGINIA MOVING