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Home My WebLink AboutWPO201700037 Review Comments WPO VSMP 2020-05-27�OF Aign. COUNTY OF ALBEMARLE ah 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: Brookhill Section 1 Block 4A and Block 8A Project file number: WP0201700037 Amendment 2 Plan preparer: Collins Engineering [scott@collins-engineering.com] Owner or rep.: Riverbend Development — Alan Taylor [alan@riverbenddev.com] Crockett Corporation Plan received date: 20 March 2020 Date of comments: 27 May 2020 Reviewers: Emily Cox 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. 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 ESOP, (3) a SWMP, and (4) any TMDL measures necessary. 1. Please provide an updated registration statement and overall coverage map showing the total acreage to be covered by this plan/permit. The current permit is VARl OK793 and is for 54.39 AC. Is the new total 63.29 AC since this plan is adding 8.9AC? B. Pollution Prevention Plan (PPP) The PPP content requirements can be found in County Code section 17-404. 1. Please provide a PPP to be inserted in the SWPPP. 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. 1. Professional engineering seal should be signed and dated. The calculations packet should also have a signed and dated seal. 2. Topography should be at lest field verified within the last year. The cover sheets references a 2018 date. 3. Preserved slopes and the greenway cannot be disturbed as shown. Only those shown on approved ZMA 2015-007 as greenway impacts and preserved slope impacts may be disturbed. Blocks 3 & 4 did not appear to show any impacts on the ZMA. This applies to the proposed sediment basin B. The Code of development section 2.4.1 also states that SWM facilities may not be in the greenway. Please note that sediment BasinB/wet pond B was not fully reviewed since the location and design will change based on this comment. Engineering Review Comments Page 2 of 4 4. [Sheet 6] Engineering believes the slopes shown below are steeper than 2:1 in the field. Please verify. 5. Ensure the greenway is correctly labeled throughout the plan. It is not a 100 ft WPO buffer. It is a proposed greenway. 6. Ensure all approved plan numbers are shown, and accurately depicted. For example, the "approved ice rink" is WP0201800050 and it is not approved. 7. What is the extended area below? Is it for maintenance/access? This was not shown on the ZMA. It was only a primitive trail. Also, this parcel would need to be added to the SWM agreement. naPPeO TOP oavin, _4 a2 TO POI #2 I ! 1 ;k2 J \ 8. Please provide the actual excel file for the forms on Sheet 19. 9. All applicable plans will need to be amended to show the change with the removal of the level spreaders, pond 4 changes, etc. This can be a simple sheet with a summary referencing the changes and this plan number. Engineering can assist with gathering all of these plans. However, it is important that they all get amended so when it is time for bond release, the most acute approved designs are shown. 10. What approved plan shows the removal of LS-10 as shown in the tables on Sheet 19? 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 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. Engineering Review Comments Page 3 of 4 1. [Sheet 4] How much area is going to the single inlet shown below? It appears to be more than 1 ac, which is the maximum drainage area allowed per 3.07 in the VESCH. It is understood that it goes to the sediment basin, but it also needs to function and not get clogged. 2. 4. Engineering suggests showing the Phase II E&S for Block lA along Salamander road, unless the applicant intends to submit a separate WPO plan for that Block. For example, show inlet protection for any inlets. Please show the proposed silt fence and tree protection in a dark linetype. It currently appears to be the same as existing items. [Sheet 14] Is the note shown below supposed to say amendment 2? Or is it supposed to say annroved amendment 1? PROPOSED EXPANSION OF THE APPROVED LIMITS OF aa DISTURBANCE UNDER WPO 201700037, AMENDMENT #1 to7 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. Engineering Review Comments Page 4 of 4 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; hllp://www.albemarle.oriz/dotfortns.asp?departtnent=cdengmTo