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HomeMy WebLinkAboutWPO201200086 Review Comments WPO VSMP 2020-09-02Phone (434) 296-5832 COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road, Room 227 Charlottesville, Virginia22902-4596 VSMP Permit plan review Project title: The Preserve at Glenmore Project file number: WPO201200086 [Amendment 2] Plan preparer: Collins Engineering Owner or rep.: Sansovich Development, LLC Plan received date: Jan. 27, 2020 July 27, 2020 Date of comments: March 5, 2020 Sept. 2, 2020 (Rev. 1) Reviewer: David James Fax (434) 972-4126 [scott@collins-engineering.com] [provide email contact] [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 (notes) 1. This plan amends an earlier approved plan WPO2012-86 and appears to be the 2"d one. 2. It appears that this project was never covered under a CGP. The limits of disturbance was 4.23ac. 3. This project will need to apply & obtain state permit coverage prior to plan amendment approval. 4. A SWPPP will need to be prepared prior to plan amendment approval. 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. Submit a SWPPP. (Rev.1) Addressed. 2. (Rev.1) Include Registration statement, Provide Notice of General Permit Coverage. C. Pollution Prevention Plan (PPP) The PPP content requirements can be found in County Code section 17-404. 1. Submit a PPP. (Rev.1) Addressed. 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 stormwater management plan content requirements can be found in County Code section 17-403. 1. Provide deed bk/pg of SWM facility easement. (Rev. 1) Not addressed. Not able to find. 2. Please provide calc. packet. Summary of pre -/post -development values not enough. Provide reports of the routing design and stormwater analysis. (Rev. 1) Addressed. 3. Wet Pond (#1, Spec#14): a. Please show bottom 350' contour. (Rev. 1) Addressed. b. Provide a non -clogging low -flow orifice. 1" will likely fail. Increase to 3". Provide solution. (Sec. 6.6) (Rev. 1) Addressed. c. Provide that the flow path is at least 2:1 ratio. (Sec. 6.3) (Rev. 1) Addressed. d. Pond embankment reports will be required prior to release of this facility (Sec. 6.4). (Rev. 1) Acknowledged. e. Provide a safety bench. (Sec. 6.3) (Rev. 1) Addressed. I. Provide aquatic bench. (Sec. 6.3) (Rev. 1) Addressed. g. Provide a pond drain. (Sec. 6.6) (Rev. 1) Addressed. h. Provide anfi-seep collars for the barrel (design found in Sediment Basin worksheet). (Rev. 1) Addressed. i. Provide that RCP barrel was laid in a concrete bedding for its entire length. (Rev. 1) It's not a requirement but strongly recommended to follow advice given in Appendix B. It could be an issue with embankment failure if joint separation is found in the barrel. Concrete bedding seems to be strongly advised to help reduce the risk of embankment failure during the fill compaction stage of construction. I think this should have been installed but at the option of a qualified Geotech professional. https://www.swbmp.vwrrc.v-t.edu/wp-content/uploads/2017/1 I /Introduction_Anp- B Principal -Spillways 03012011.pdf j. Show bottom spot elevations at the forebay, mid -pond and at the riser. - maintenance & inspection reasons (Rev. 1) Addressed. k. Provide planting plan -turf cover. Show 25' veg. buffer. (Sec. 6.7) (Rev. 1) Addressed. 1. Provide recommended veg. cover for spillway. (BMP Appx. C, p.4) (Rev. 1) Addressed. m. Include operation and maintenance requirements on the plan. (Sec. 9.2-9.4) (Rev. 1) Addressed. 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. (E&SC measures adequately addressed in the approved plan. ) 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; http://www.albemarle.org/deptforms.asp?department==cdeng"