The URL can be used to link to this page

Home My WebLink AboutWPO201800042 Review Comments WPO VSMP 2018-07-18COUNTY 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: Westminster Canterbury -VSMP Project file number: WP0201800042 Plan preparer: David Jensen, WW Associates, Inc. 3040 Avemore Square Place Charlottesville, VA 22911 fidiensen(a)wwassociates.net ] Owner or rep.: Westminster Canterbury of the Blue Ridge 250 Pantops Mountain Road, Charlottesville, VA 22911 Plan received date: 4 Jun 2018 Date of comments: 18 Jul 2018 Reviewers: John Anderson 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; rationale given in comments below. The VSMP application content requirements can be found in County Code section 17-401. 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. Please: 1. Revise Sec. 8 to list qualified personnel until GC is selected. A/E typically listed, until GC selected. 2. Revise to include WP0201800042 on cover, and throughout. 3. Revise section 4 in response to ESC /SWM review comments. 4. Rev. Sec. 6 Exhibit to show containment; recommend berm or SF to minimize potential that contaminant - laden storm runoff from solid waste dumpster, portable sanitary, PCE, etc. may reach an off -site drainage. SF shown is partial containment, but inadequate if review contours. B. Pollution Prevention Plan (PPP) The PPP content requirements can be found in County Code section 17-404. 1. The PPP appears acceptable. As follow -Lip, show staging area on plans (see Table No. 1 —SWPPP, p. 6-12). 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. Provide standalone VSMP plan. Include WPO#201800042 in plan title. VSMP Plan need not include C-9, C-10, C-11, or L-series (Landscaping) sheets. Increase /re -calculate total disturbed acreage (0.37 Ac.); revise Site Summary, Site Land Cover Summary (pre- /post -development) table values to reflect increased LOD. See ESC Plan review comment #1. VRRM.xls Site Land Cover Summary pre -redevelopment land cover does not include forest, but portion of area within LOD appears landscaped, if not wooded (image, below). Revise VRRM.xls table values and Engineering Review Comments Page 2 of 3 nutrient credit purchase requirement, as/if needed. 4. Confirm whether SCC-1, SCC-2, SCC-3 are to receive soil stabilization blanket (B/M). Sheet C-12 open channel worksheet table lists 2-year channel velocities of 2.45, 0.94, and 1.16 fps, respectively; this appears non -erosive, yet C-15 shows B/M. Albemarle will include B/M in SWM or ESC bond estimates, if required, and seeks to confirm area (ft2) and location B/M is (or may be) required. 5. Nutrient credit purchase is proposed. Applicant should work with Albemarle County Management Analyst on nutrient credit purchase requirements prior to purchase —ref. Process section that follows comments. 6. Note: Proposed plan meets quantity requirements. C-13, Note B. states: "The pre and post developed 1-, 2-, and 10-year 24-hour storm hydrographs have been generated ...there is no change in the curve numbers or flows. The existing outfall at analysis point D is currently stable and exhibits no erosion. The outfall will remain stable at the completion of the project." Albemarle accepts that proposed design satisfies 9VAC25- 870-66.B.1 (U.S. Rt. 250) manmade storm conveyance system (channel protection) requirements, and 9VAC25-870-66.C.1. flood protection requirements. D. Erosion and Sediment Control Plan (ESOP) Virginia Code §62.1-44.15:55 requires the VESCP authority to approve or disapprove an ESOP. This plan is disapproved for reasons listed in comments, below. The erosion control plan content requirements can be found in County Code section 17-402. C-15: 1. Expand LOD to allow construction traffic to exit PCE and construct improvements (call if questions). 2. Provide series of curved sections of SF (on contour) NE of PCE, downslope of proposed sidewalk. 3. Provide perimeter controls for expanded LOD (item #1, above). 4. Dimension OP (L X W X D) at entrance pipe at U.S. Rt. 250. 5. Provide /show TP for trees to be saved (see image, above). 6. Provide pre -Phase 1 ESC plan with RWD and other sediment runoff -limiting measures (as needed) to protect U.S. Rt. 250 during rough grading of expanded paved sections of Pantops Mountain Road. This may be an inset detail focusing on Int. of U.S. Rt. 250 and Pantops Mountain Road. 7. C-17: Provide PCE detail —ref. ACDSM, pg. 8, Paved Wash Rack. Engineering Review Comments Page 3 of 3 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. Please coordinate Nutrient Credit Purchase with the County's Management Analyst prior to purchase. Evidence of purchase of required level of nutrient credits is required prior to Applicant receiving a Grading Permit. After bonding (and nutrient purchase, ideally) are complete, county staff will need to enter project information in a DEQ database for state application processing (if area of disturbance is one acre, or more). 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. If area of disturbance is less than one acre, a DEQ VPDES permit, permit fee, and permit coverage letter are not required. 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. * NA. if area of disturbance < 1 Acre County forms can be found on the county website forms center under engineering; httt)://www.albemarle.org/dei)tforms.asD?del)artment--cdenawDo Thank you J. Anderson 434.296-5832 -3069 File: WP0201800042 Westminster Canterbury 071818.doc