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HomeMy WebLinkAboutWPO201600052 Correspondence 2022-03-01 (2)COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road, Room 227 Charlottesville, Virginia 22902-4596 Phone (434) 296-5832 Fax (434) 972-4126 VSMP Permit plan review Project title: Hunters Wat Project file number: WP0201600052 Plan preparer: Shimp Engineering, P.C. [keane@shimp-engineering.com] Owner or rep.: Heartrock Farm, LLC [kschuyler@cstonelle.com] Plan received date: 04 Jan 2019 Date of comments: 01 Feb 2019 Reviewers: Emily Cox 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. 02-28-2022: Responses in Red below A. 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. SWPPP was not provided. Please provide SWPPP. Template can be found here: SWPPP provided htt)://www.albemarle.orp/uDload/ima2es/forms center/departments/Community Develonment/for ms/Engineering and WPO Forms/Stormwater Pollution Prevention Plan SWPPP temDlate.Ddf 2. Registration statement says total disturbed area is 0.51 AC, however Sheet C2 says 0.64 AC Please clarify. updated to match. B. Pollution Prevention Plan (PPP) The PPP content requirements can be found in County Code section 17-404. 1. PPP not provided. Please provide PPP and ensure that all items from 17-404 are included. PPP provided. C. 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 stormwater management plan content requirements can be found in County Code section 17-403. 1. [Sheet Cl] Title should be WP0201600052 —Amendment 1. Added to Plans & SWPPP 2. Please ensure the following document is included on the plans: htto://www.albemarle.org/uDload/images/forms center/deDartments/Community Develooment/for ms/Engineering and WPO Forms/WPO VSMP Construction Record Drawings Policv 23Ma y2014.Ddf Added to C9 Engineering Review Comments Page 2 of 3 3. [Sheet C8] Provide maintenance requirements for SWM facility. Since orifice is so small (less than Y) ensure there is an adequate frequency of inspections required to ensure the orifice is not clogged. Added to Cover Sheet. 4. SWM agreement will need to be executed before plan approval. noted. 5. Executed plat showing SWM facility easement along with deed will be necessary before land disturbance permit can be issued. Noted, plats will be submitted March 1, 2022 6. Nutrient credits must be purchased before land disturbance permit can be issued. Contact Ana Kilmer (akilmer@albemarle.org 434-296-5832 ext 3246) before purchasing credits. noted. 7. [Sheet C2 — SWM ] Provide short summary of how regulations are met on the plans. (allowable Q based on energy balance, proposed Q, credits required & purchased, etc.). Back-up calculations There is not, may be kept in the SW calculation packet. Added to C10. it is now 8. [Sheet C3] Is there an existing SWM easement? Provide DB & PG of executed easement plat. added to 9. [Sheet C3] County GIS shows critical slopes on this parcel. Per County Code 18-4.2, a waiver is new plat. required for disturbance to these slopes. Please show the slopes on all applicable sheets of the plan and ensure the limits of clearing are outside of the critical slopes. Noted, shown on site layout & grading plans. 10. Provide legend for all hatches on the plan. labelling added, hatches revised for clarity. 11. Provide detail for proposed retaining wall. Note that a building permit and engineered design will be necessary for the retaining wall. Wall removed. No design Required. 12. Retaining wall should be outside of the SWM facility easement. N/A This cannot be easily achieved, 13. [Sheet C6] Suggest moving inlet 4 outside of the wheel path of cars. smaller inlet provided. 14. [Sheet C8] Provide 2'd manhole for access and maintenance at the outfall of the SWM facility. Added. 15. [Sheet C8] Provide larger trash rack that will extend to the top of the weir and cover the weir so that debris and trash cannot exit the facility. This has not been required on other plans. Ordinance does not 16. [Sheet C8] How will the steel weir plate be secured to the HDPE pipe? Is a junction box require this. This is not a necessary? Notation added to address this. SWM quality treatment BMP. Not added. D. 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. [Sheet C3] Title should be existing conditions and demolition plan. Title updated. 2. [Sheet C5] Provide dust control symbol on the plans. It is in the legend, just not in the plans. DC symbol added. 3. [Sheet C5] Limits of disturbance should be OUTSIDE of silt fence. Please revise limits. Ensure limits are outside of the critical slopes. See comment #9 above regarding critical slopes. Noted, updated as requested. 4. [Sheet C5] Consider clean water diversion along the western property line to keep clean water offsite. Added as requested. 5. [Sheet C5] Extend silt fence along eastern edge of property up to the construction entrance. Updated as requested. 6. [Sheet C5] Safety fence is shown going through construction entrance. Please revise. Updated as requested. 7. [Sheet C5] Provide wash rack for construction entrance and a place for the water/sediment to Added as requested. settle. 8. [Sheet C5] Provide perimeter controls and phasing plan for the proposed waterline installation. Added as requestec WL can be installed The VSMP permit application and all plans may be resubmitted for approval when all comments have at any time, so no been satisfactorily addressed. For re -submittals please provide 2 copies of the complete permit package phasing added. 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.