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Home My WebLink AboutWPO201600009 Approval - County 2022-07-07�q off nig 401 McIntire Road, North Wing Charlottesville, VA 22902-4579 County of Albemarle Telephone: 434-296-5832 COMMUNITY DEVELOPMENT DEPARTMENT WWW.ALBEMARLE.ORG �tBGIN�P' VSMP Permit Plan Review Project title: Old Trail Block 10 WPO Plan Amendment (VR0201600009) Project: WP02016-00009, Amendment #3 Plan preparer: Jeremy Fox, PE /Timmons Group leremy.fox(i�timmons.com Craig Kotarski, PE, Timmons Group — 608 Preston Ave, Suite 200, Charlottesville, VA 22903 [craig.kotarski(jjtimmons.com ] Owner or rep.: East Village, LLC 1005 Heathercroft Cir, Suite 100, Crozet, VA 22932 Plan received date: 7 Feb 2022 (Rev. 1) 6 Jun 2022 Date of comments: 15 Mar 2022 (Rev. 1) 7 Jul 2022 -Approved Reviewer: John Anderson, PE 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 (Amendment #31 approved. 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. SWPPP 1. Please ensure SWPPP (VAR100043) is on -site, but Please note: If East Village LLC is not subsidiary to March Mountain Properties (i.e., does not hold an active VAR10 permit), then a VAR10 and SWPPP for East Village LLC OTV block 10 is required. Please clarify East Village LLC status relative to March Mountain Properties. (Rev. 1) Addressed. Applicant response (letter d. 6 Jun 2022): `VAR100043 is on - site. East Village LLC is a subsidiary to March Mountain Properties.' 2. If a new VAR10 is required, please submit SWPPP using county template located at: https://www.albemarle.ore/home/Showpublisheddocument/166/637202310327530000 (Rev. 1) Addressed. See item 1. above. Applicant: `A new VAR10 is not required. Project is approved and permitted under current VAR100043.' Note: Applicant is reminded to update on -site SWPPP, as needed. a. Sec. 1: Registration Statement, please complete. Feel free to call if any questions. b. Sec. 6.A.: PPP Exhibit: Please show initial location of: i. Rain gauge. ii. Portable sanitary facilities (porta-john), as required. iii. Covered non -hazardous waste dumpster, if required. iv. Vehicle wash waters, draining to trapping measure (Not a sediment trap design, per se, but shallow depression — 1-2 backhoe buckets. Avoid direct drainage to Ex, storm system, or pond/s.) v. Concrete wash -out. vi. On -site fuel, if required. vii. Paint, stucco, chemical storage, if required. c. Sec. 6E: List named individual responsible for PPP measures. d. Sec. 8: Although county personnel will inspect, Applicant is required to retain qualified (contractor/third-party) E&S inspection personnel to perform ESC inspections and evaluate compliance relative to VESCH, 3rd Edition, 1992. e. Sec. 9: Ensure Signed Certification is signed and dated. Engineering Review Comments Page 2 of 3 B. Pollution Prevention Plan (PPP) —see SWPPP item 2.b., above (Rev. 1) Addressed. Ref. items 1.,2., above. The PPP content requirements can be found in County Code section 17-404. C. Stormwater Management Plan (SWMP) VSMP Regulation 9VAC25-870-108 requires the VSMP authority to approve or disapprove a SWMP. This plan (Amendment 43) is approved. 1. VAR100043 covers most Old Trail Village Development. Please confirm whether East Village LLC is subsidiary to March Mountain so Albemarle may determine whether this Plan Amendment requires a separate VAR10 and separate WPO, or is covered under VAR100043, with Amendment to WPO201600009 a possibility. It is not immediately apparent what the case may be. (Rev. 1) Addressed. Applicant: `VAR100043 is on -site. East Village LLC is a subsidiary to March Mountain Properties.' 2. C0.0: Please revise plan title to include `Amendment 43'. (Rev. 1) Addressed. 3. C2.0: Ensure easement plat vacates or establishes new easements, as outlined. (Rev. 1) Addressed. Applicant: `Easement plat will be submitted under separate cover.' Note: Easements may be established or vacated and shown and recorded with final subdivision plat for this portion of OTV block 10. 4. C4.0: Provide North arrow. (Rev. 1) Addressed. 5. C6.1: 9.005' spread, inlet Str. 202, throat length 6', does not impede travel lane, but nearly entirely occupies parallel parking space width, in interest of safety and convenience, Engineering recommends slightly longer throat length for this inlet. Comment may repeat with Road plan review comments. (Rev. 1) Addressed. 6. Please remove C8.0 (please ensure sight distance profile is included with the road plan). (Rev. 1) Addressed. 7. Recent email correspondence discussed requirements for 4 subdivided lots east of Rowcross St. Engineering recommends represent land disturbance associated with 4-lot subdivision with this Amendment, but developer may wish to pursue VSMP /WPO permit coverage separately, under a separate WPO. Advantages applying now are several: (Rev. 1) Withdrawn. Engineering defers to Applicant on timing and method of addressing future land disturbance that may later require additional plan Amendment. Applicant: `East Village LLC is a subsidiary to March Mountain Properties and this area is covered under VAR100043.' a. Relatively straight -forward approval. b. Quicker WPO approval for subdivided lots (subdivision also requires plat). c. No new VAR10 permit for subdivided lots (if covered under VAR100043). d. Please note this comment is affected by item C.1., above. 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 (Amendment #3) is approved. 1. C3.1: Limits of silt fence ambiguous, please include linework that delineates SF. (Rev. 1) Addressed. 2, C3.2: It appears that SF should persist in ESC Phase 2; please clarify, or provide SF. (Rev. 1) Addressed. Process: (Rev. 1) Clarification: Process outline sent 15 Mar 2022 is revised, relative to Amendment #3. No additional WPO bond or (DEQ) database registration or update is required. Development is permitted with DEQ (VAR100043), SWM Facility Maintenance Agreement is recorded (with WPO201600009). This Amendment reflects altered block layout, principally street and product /unit mix. From SWM perspective, sheet C6.2 Master SWM Compliance Map provides useful summary: `Per Old Trail Village Stormwater Master Plan (WPO201600009) approved April 25, 2016, the Project Limits and Impervious cover within the block 10 development remain within approved parameters and consistent with approved drainage area I IB as shown. SWM Facility L-3 was amended in 2018 and constructed Engineering Review Comments Page 3 of 3 in 2021 as an enhanced extended detention facility (above) that provides equivalent water quality and quantity controls as the original approved design of a biofilter.' Also: `The proposed development lies within drainage area 11B, as shown on Figure 8 of the Stormwater Master Plan (WPO201600009) approved April 25, 2016. The design land cover conditions for the drainage area to SWM Facility L-3 is shown hereon and below calculations were used to generate similar approved calculations.' Then, C6.2 indicates that L-3 Approved drainage calculations for total drainage area of 8.96 Ac. has a weighted CN =85, while L-3 present day (Amendment) drainage area calculations for the same 8.96 Ac. area has a weighted CN =76, therefore: L-3 present day CN of 76 < Approved CN of 85. [Design] ok. Engineering accepts Amendment #3 has no effect on already -approved WPO201600009 SWM design, imposes no new or additional requirements relative to DEQ, does not increase bond amount, and has no effect on existing recorded Maintenance Agreement. Given this, a WPO plan preconstruction (or similar) meeting is not strictly necessary. Thank you. Please call if any questions — tel. 434.296-5832-x3069, or email ianderson2(a)albemarle.org . WP0201600009 OTV blk 10-16-17-18 Amend 3 070722revI