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HomeMy WebLinkAboutWPO202100056 Correspondence 2022-01-31L I N E + G R A D E C I V I L E N G I N E E R I N G COMMENT RESPONSE LETTER January 3151, 2022 TO: County of Albemarle Community Development Department 401 McIntire Road, North Wing Charlottesville, VA 22902 ATTN: Emily Cox, plan reviewer RE: Waverly Residence— WPO-2021-00056 Response to Rev. 1 Comments Ms. Cox, On behalf of Cyrena Sparkman we offer the following responses and plan revisions to comments dated December 20", 2021. Our Responses are in bold italic text below each comment. A. Stormwater Pollution Prevention Plan (SWPPP) 1. SWPPP will need to be updated to include the final approved plans. Rev. 1: Comment still applies. The SWPPP has been updated to include the most recent plan sheets. 2. Rev. 1: Section 9, signed certification, must be signed. Section 9 of the SWPPP is now signed. See attached updated SWPPP. B. Pollution Prevention Plan (PPP) 1. No Comment. The PPP has been updated to reflect changes in the underlying phase 2 erosion and sediment control elements, but no changes to prevention practices have been made. See plan in the SWPPP. L I N E + C. Stormwater Management Plan (SWMP) GRADE 1. Since this plan is for the establishment of a single family dwelling unit, according to County Code 17-403-13, an agreement in lieu of a stormwater CIVIL ENGINEERING management plan can be used. The conditions listed on the agreement must still 113 d" STREET NE, STE. 100 be met, but your water quality and VRRM requirements (forest & open space CHARLVA22902 LINE-GRNE-GR ILLE, ADE.COM Waverly Residence (WPO-2021-00056) Response to Rev. 1 Comments January 31", 20221 Page 2 easement) may be removed. The level spreaders must remain to address the concentrated flow. Please fill it out and submit with your next submission. Rev. 1: Comment not addressed. SWIM agreement in lieu must be submitted before plan approval. The stormwater management agreement for single family residence construction is included with this submission. A contractor has yet to be selected by the owner, so this portion of the agreement (responsible land disturber) has been left as TBD and will be filled in upon final selection of the contractor prior to Land Disturbance Permit issuance. 2. An easement is not required for the level spreaders, however a SWIM facility maintenance agreement will be necessary before this plan can be approved. Please contact Ana Kilmer [akilmer@albemarle.org or 434-296-5832 ext 3246) in our office to complete that process. Rev. 1: Comment not addressed. SWIM agreement must be executed before plan approval. The SWM maintenance agreement process is underway. 7. Rev. 1: Please keep the rip -rap that is shown as outlet protection on the E&S plan for the culverts. Ensure it is designed as permanent rip -rap. Permanent rip -rap style outlet protection is now proposed for both culverts. See revised sheet C2.2 and minimum dimensions and detail on sheet C2.3. 8. Rev. 1: Based on photos provided, the area below level spreader B must be fully stabilized before bond will be released. Acknowledged. A note has been added to sheets C2.2 and C5.1 notifying the contractor of this. L I N E + GRADE CIVIL ENGINEERING 113 4`" STREET NE, STE. 100 CHARLOTTESVILLE, VA 22902 LINE-GRADE.COM