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HomeMy WebLinkAboutWPO202200005 Correspondence 2022-08-31SHIMP ENGINEERING, P.C. Design Focused Engineering August 17, 2022 David James County of Albemarle Community Development 401 McIntire Rd, North Wing Charlottesville, VA 22902 RE: Response Letter #4 for WPO202200005 Castalia Farm Winery Dear David, Thank you for your review of the VSMP plan for Castalia Farm — New Facility. This letter contains responses to comments dated August 12, 2022.Our responses are as follows: A. Stormwater Pollution Prevention Plan (SWPPP) 1. Addressed. 2. Addressed. 3. (Rev. 3) Note: Engineering will stamp approved the SWPPP once the approved copies of the ESC & SWM plan are inserted. RESPONSE: Confirmed, the approved drawings will be added to the SWPPP and sent back to the County. B. Pollution Prevention Plan (PPP) 1. Addressed. C. Stormwater Management Plan (SWMP) 1. Addressed. 2. Addressed. 3. Addressed. 4. Addressed. 5. Bioretentions: (Ensure bioretention meets all requirements per DEQ specifications: https:Hswbmpvwrre.wp.prod.es. cloud.vt.edu/wp-content/uploads/2017/ 11 BMP-Spec-No- 9_BIORETENTION_v 1-9_03012011.pdf ) a. Addressed 912 E. High Sr. Charlottesville, VA 22902 1434.227.5140 1 shimp-engineering.com b. Addressed c. Addressed d. Acknowledged. e. Addressed f. Addressed. g. Addressed. h. Addressed i. Addressed j. (Rev. 3) Show/Provide observation well locations (6.7) RESPONSE: j. Observation well locations are now shown for all bioretention basins. 6. Addressed. 7. Addressed. 8. Addressed. 9. Addressed 10. Acknowledged 11. Addressed 12. Addressed 13. Addressed 14. Acknowledged — Easement plat will need to be approved/recorded prior to WPO plan approval. Submit an easement plat application. RESPONSE: Easement plat and application have been submitted. 15. Addressed 16. (Rev. 2) Record SWM Maintenance Agreement Response: This will be recorded prior to plan approval. D. Mitigation Plan (MP) 1. Addressed. 2. Addressed. 3. Acknowledged. 4. Addressed 912 E. High St.. Charlottesville, VA 22902 1434.227.51401 shlmp-engineenrig.rom 5. Addressed. 6. (Rev.3) Provide copy of NW permit. Sec. 17-604 C. Evidence of required permits. RESPONSE: Confirmation of permit status from USACE engineer has been provided. A permit is not required to be issued for this site. CWA Section 401 Certification Compliance form has now been attached for record indicating compliance with NWP 18. 7. Addressed 8. Acknowledged E. Erosion and Sediment Control Plan (ESCP) 1. Addressed. 2. Acknowledged. 3. Sheet C 10/11— a. Addressed. b. Addressed. c. Addressed. d. Addressed. e. Addressed f. Addressed. g. Addressed. h. Addressed. i. Addressed. j. Addressed. 4. Sheet C 12, etc a. Addressed. b. Addressed. c. (Rev. 3) Cl 1: Provide diversion (DV) with rock check dams to receiving channel. - Similar solution in addressing comment If. RESPONSE: c. A DV has been added with rock check dams to the start of the receiving channel. The final grading has also been updated at this location to more clearly show how discharge from the culvert reaches the existing channel. 5. Addressed. 6. Addressed. 7. Addressed. 8. Addressed. 9. Addressed 912 E. High St.. Charlottesville, VA 22902 1434.227.51401 shlmp-engineenrig.rom 10. Addressed 11. Addressed. 12. Addressed. If you have any questions or concerns about these revisions, please feel free to contact me at chris@shimp-en ine eering com or by phone at 434-227-5140. Regards, Chris Marshall, EIT Staff Engineer Shimp Engineering, P.C. 912 E. High St.. Charlottesville, VA 22902 1434.227.51401 shlmp-engineenrig.rom