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Home My WebLink AboutWPO202000032 Review Comments WPO VSMP 2020-07-06Phone (434) 296-5832 Project title: Project file number: Plan preparer: Owner or rep.: Plan received date: Date of comments: Reviewer: COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road, Room 227 Charlottesville, Virginia22902-4596 VSMP Permit plan review 1300 Richmond Road — Flow Automotive WPO202000032 Shimp Engineering Buddy Thomas June 2, 2020 July 6, 2020 David James Fax (434) 972-4126 [kendra@shimp-engineering. com] [bthomas@flowauto.com] [djames2@albemarle.org] County Code section 17-410 and Virginia Code §62.1-44.15:34 requires the VSMP authority to act on any VSMP permit by issuing a project approval or denial. This project is denied. The rationale is given in the comments below. The application may be resubmitted for approval if all of the items below are satisfactorily addressed. The VSMP application content requirements can be found in County Code section 17-401. A. General 1. Cover —Add `WPO202000032' under title. 2. Submit a floodplain development permit for disturbance in the floodplain. B. Stormwater Pollution Prevention Plan (SWPPP) The SWPPP content requirements can be found in County Code section 17-405. A SWPPP must contain (1) a PPP, (2) an ESCP, (3) a SWMP, and (4) any TMDL measures necessary. 1. Registration Statement: a. Add `County of Albemarle' under Section IV. E. b. Check the yes box under Section V. B. C. Pollution Prevention Plan (PPP) The PPP content requirements can be found in County Code section 17-404. 1. Show staging, stockpile, borrow, concrete washout locations on the PPP. Also, show locations where concentrated stormwater may discharge. 2. Show possible stockpile/waste areas with silt fence around it. 3. Provide detail of concrete washout on the plans or with PPP. D. Stormwater Management Plan (SWMP) VSMP Regulation 9VAC25-870-108 requires the VSMP authority to approve or disapprove a SWMP. This plan is disapproved, and the reasons are provided in the comments below. The stonnwater management plan content requirements can be found in County Code section 17-403. 1. Sheet 3: Provide deed bk/pg of existing SWF easement (ex. 48" detention pipe). 2. Sheet 4: Show proposed SWM facility & access easement for the pond. 3. Sheet 10: a. Show the HGL in the profiles, LD-347 calcs or equivalent. b. Show the 2-, 10- & 100-yr design WSE lines for the basin. c. Provide 2' minimum cover height over pipes. d. Reduce outlet velocity to under 10fps at F1 end. e. Provide endwall at F1 end. f. LD-229 design table — Provide pipe diameter in inches under column 14. 4. Detention basin: a. Provide a sediment forebay. Follow the erosion & flood control guidelines from VADEQ, Appx. D. b. Design a low -flow, smaller diameter orifice(s) in riser structure before considering larger diameter. c. Show detail of trash rack 5. Provide storm inlet drainage area map. 6. SWM Cates — Please correct the diameter of outlet device #1 showing 24.0" culvert. The plans show a 30" culvert. 7. Show letter of availability from the nutrient credit bank or provider on the plans. Currently, 2.40 lb/yr TP credit required. 8. Contact Ana Kilmer regarding the Nutrient Credit Agreement. 9. Record the SWM maintenance agreement. E. Erosion and Sediment Control Plan (ESCP) Virginia Code §62.1-44.15:55 requires the VESCP authority to approve or disapprove an ESCP. This plan is disapproved, and the reasons are provided in the comments below. The erosion control plan content requirements can be found in County Code section 17-402. 1. Sediment trap (ST2) will not be allowed on top of fill material or be held up by retaining wall (policy). 2. Show the key symbols in addition to linetype symbols (i.e. SF). 3. Include CE in your LOD. 4. Show/Provide RWD to sediment trapping device for each construction entrance. 5. Sheet 7: a. DD is BOIiW PR�I� 1lIP 9Ef SItl1AQ 111P .F1' S10RME to direct runoff to b. SF need along here: 6. T EUN W May need additional off site construction easement to tie in to grade. Letter of permission from offsite owner will suffice for this review. c. In the Sequence of Construction clarify that A5a end will be blocked for the new pipe until the downstream detention pond grading is complete. Sheet 8/10: a. Provide a detail of what this IP looks like and refer them to that detail. NEW GR a _, _ 15` PEF \\ �1NSTALL STRUCTURE El AND LEAVE / OFF TOP. ADD STONE BERM AROUND IT TO ACT AS A DROP INLET SEDIMENT TRAP. FINISH RETAINING. WALL & REMOVE TRAP •• ONCE SITE IS STABILIZED. do S T R U C TION ��\\�y• b. Add OP to Al & Fl end and/or show that existing riprap is adequate. The OP riprap will need to be sized and extend along length, L.. A filter fabric should be placed underneath the riprap. 7. Sheet 9: a. Add in noted items here: b. Add in low maintenance cover here & where needed. O6 U �_ U A AiL NEW 6 — �5 P - LOW MAINTENANCE GROUND - EW STAIRS 28 RISERS CO''ER %0PM 11 OR sTEERER (S IzAC111WuM - 00" sco UM •uT MUESTE -) —� BUILDING B - is -N,�W SALES & SEICE FFE- z 16 "635 CE SERNCE _� I RECEPTION ,6 --M+6 _ 04 T:. .5 I .. .. __ S f f, A :AT 8. Sh The VSMP permit application and all plans may be resubmitted for approval when all comments have been satisfactorily addressed. For re -submittals please provide 2 copies of the complete permit package with a completed application form. Engineering plan review staff are available from 2-4 PM on Thursdays, should you require a meeting to discuss this review. Process: After approval, plans will need to be bonded. The bonding process is begun by submitting a bond estimate request form and fee to the Department of Community Development. One of the plan reviewers will prepare estimates and check parcel and easement information based on the approved plans. The County's Management Analyst will prepare bond agreement forms, which will need to be completed by the owner and submitted along with cash, certificates or sureties for the amounts specified. The agreements will need to be approved and signed by the County Attorney and County Engineer. This may take 2-4 weeks to obtain all the correct signatures and forms. Stormwater Management Facilities Maintenance agreements will also need to be completed and recorded. The County's Management Analyst or other staff will prepare the forms and check for ownership and signature information. The completed forms will need to be submitted along with court recording fees. After bonding and agreements are complete, county staff will need to enter project information in a DEQ database for state application processing. DEQ will review the application information based on local VSMP authority approval. At this time, the DEQ portion of the application fees will need to be paid directly to the state. For fastest processing, this is done electronically with the emails provided on the application. DEQ should notify applicants with instructions on how to pay fees. When DEQ approves the application, they will issue a permit coverage letter. This should be copied to the county. After DEQ coverage is issued, via the coverage letter, the County can hold a pre -construction conference. Applicants will need to complete the request for a pre -construction conference form, and pay the remainder of the application fee. The form identifies the contractor and responsible land disturber, and the fee remaining to be paid. This will be checked by county staff, and upon approval, a pre -construction conference will be scheduled with the County inspector. At the pre -construction conference, should everything proceed satisfactorily, a joint VSMP and grading permit will be issued by the County so that work may begin. County forms can be found on the county website forms center under engineering; hft://www.albemarle.org/deptforrns.asp?department==cdengWo