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HomeMy WebLinkAboutWPO202100068 Review Comments WPO VSMP 2021-12-30County of Albemarle m COMMUNITY DEVELOPMENT DEPARTMENT VSMP Permit Plan Review Project title: Nystrom Driveway Project file number: WP0202100068 Plan preparer: Dustin Greene, PE [dgreene@roudabush.com] Owner or rep.: Jonathan Nystrom [JgNystrom@nycominc.com] Plan received date: 12/02/21 Date of comments: 12/30/21 Reviewer: Frank Pohl, PE 401 McIntire Road, North Wing Charlottesville, VA 22902-4579 Telephone: 434-296-5832 WWW.ALBEMARLE.ORG The land disturbance proposed with this plan does not include the construction of a single-family home and is therefore not exempt from VSMP requirements [§17-303.C]. However, since the driveway is for the establishment of the first single-family dwelling on the subject parcel, a SWM agreement in lieu of a plan is allowed [§17-403.B], but all other VSMP documents are still required (ESC plan, SWPPP and PPP). Please submit a VSMP application and a VSMP fee of $171.60, with proof of payment, which is in addition to the fee for a Mitigation Plan review. The Mitigation Plan review fee has been received. Please indicate that you are resubmitting and include the project number listed above on the form. 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 disapproved. The rationale is given in the comments below. The 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 §17-405. A SWPPP is required even though a SWM plan is not. 1. Single Family SWPPP not submitted. Provide a completed Single Family SWPPP. Please refer to the following link for the Single -Family Home SWPPP template, which may be used for this project: https://www.a I bema rle.org/home/showpubl isheddocu ment/2662/637539044923470000 B. Pollution Prevention Plan (PPP) A PPP is required even though a SWM plan is not required. PPP content requirements can be found in County Code §17-404. 1. PPP not submitted. Include PPP requirements on the plan sheets. C. Stormwater Management Plan (SWMP) VSMP Regulation §9VAC25-870-108 requires the VSMP authority to approve or disapprove a SWMP. A SWM plan is not required for this project because the land disturbing activity is for the Engineering Review Comments Page 2 of 4 purpose of establishing a single-family dwelling and the Administrator has determined an agreement in lieu of a stormwater management plan is allowed [§17-403.B]. 1. Submit a completed and executed SWM Agreement in Lieu of a plan form with this application. An additional fee for this agreement is NOT required. Refer to the agreement linked below: https://www.a I bema rle.org/home/showpubl isheddocu ment/2710/637539045240170000 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 for the reasons noted below. The erosion control plan content requirements can be found in County Code §17-402. 1. Revise note on Sheet 1 stating "Limits if Disturbance...." to "Limits of Disturbance...". Also, add to the end of 'Qualifies for agreement in lieu of plan for SWMp/an"the following: "because the driveway is being constructed for the purpose of establishing the first single-family dwelling on the subject property [§17-403.B]:" 2. Show the area for each area of disturbance. Silt fence drainage areas must not exceed approximately '% acre per 100-ft of SF (VESCH). Sediment traps may be required where drainage areas exceed design standards or at discharge points to the stream. 3. Silt fence should be installed parallel with contours (VESCH). Replace silt fence with diversions where appropriate and add a typical diversion detail to the plan set. 4. Add TS and PS symbols on plan where disturbance occurs and add the TS detail to the plan set (VESCH). 5. Driveway Typical section on Sheet 2 indicates 3:1 side slopes for the drainage channels but the detail on Sheet 4 indicates 2:1 side slopes. Please reconcile. 6. Show the slope of the driveway on the plan and provide a note that the driveway cannot exceed 16% [§18-4.6.6]. 7. It is suggested to confirm that the home site is large enough. Provide enough area for the actual home that the owner wants to build, including outdoor areas, driveway pad, etc. If the area of land disturbance exceeds 1 acre, a SWM agreement in lieu of a plan may still be allowed considering the purpose of this disturbance is for the establishment of a single-family home [§17-403.B]. It is recommended to provide as much area as is needed for the home site so that additional grading of the hillside is not required later. The VSMP fee is the same for LDAs under 5 acres if for the purpose of establishing a single-family home [§17-208]. 8. Add "Related approvals: FDP202100003" to the floodplain note on Sheet 1. 9. Provide a section of each bridge to clearly show and note that no work is to occur within the stream banks. 10. Explain how construction of the bridges will be completed without having to drive through the streams. Submit a copy of the ACOE permit with this application. If access will be provided by some other means, indicate this on the drawings. 11. Confirm matchlines are correct. Matchline on Sheet 2 references Sheet 3. Should the upper'window' reference the lower'window', and the lower'window' reference Sheet 3 on the right side of the plan? Sheet 3 doesn't show a matchline. Engineering Review Comments Page 3 of 4 12. Just for information, there are typos in the notes on Sheet 3. 13. Show the limits of the stream buffer on Sheet 4. 14. Add "WPO202100068" to the cover sheet. E. Mitigation Plan (MP) 1. Combine the mitigation plan with the ESC plan set. Add the mitigation sheets to the sheet list and update sheet numbers accordingly. Revise the title of this drawing set to be "Erosion & Sediment Control Plan and Mitigation Plan." This makes it easier for inspectors to have one set of drawings in the field to use for inspections and recordkeeping. 2. Add a column to the tables on Sheet 2 identifying which plants are canopy trees, understory trees, and shrubs. Provide a table/calculation showing that the ratio of these plants meets the ratio as noted in Appendix D of the Riparian Buffers Guidance Manual. 3. Include page C-1 from Appendix C of the Riparian Buffers Guidance Manual in the plan set. Link to the manual: https://www.vbgov.com/govern ment/departments/planning/boards-commissions- com mittees/ Documents/CB PA/CB PA% 20Appl ications/ Riparian%20Buffers%20M od ifica tion%20and%20Mitigation%20Guidance%20Manual.pdf 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 or submit all documents online. Engineering plan review staff are available from 2-4 PM on Thursdays, should you require a meeting to discuss this review. Process: After approval, erosion and sediment control and stormwater management improvements and proposed mitigation plantings must be bonded. The bonding process begins when the plan is approved and the applicant submits a bond estimate request form and fee to the Department of Community Development. A plan reviewer 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. After bonding is complete, county staff enters project information in a DEQ database for state application processing, if a DEQ permit is required. DEQ reviews 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 Engineering Review Comments Page 4 of 4 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, which must be posted at the construction site. After DEQ coverage is issued, via the coverage letter, the County can hold a pre -construction conference. Applicants must 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; httos://www.al bemarle.org/government/community-development/aooly-for/engineering-aoolications