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HomeMy WebLinkAboutWPO202000026 Review Comments WPO VSMP 2020-06-12COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road, Room 227 Charlottesville, Virginia 22902-4596 Phone (434) 296-5832 Fax (434) 972-4126 VESCP Permit Plan Review Project: Yancey Farm Pad 2 — VESCP Project file#: WP02020-00026 Plan preparer: Logan O'Day — Roudabush, Gale, & Assoc., Inc. / Engineering 172 South Pantops Drive, Suite A, Charlottesville, VA 22911 [ loday(a)roudabush.com ] Owner or rep.: Charles Ernest Yancey / 6557 Dick Woods Road, Charlottesville, VA 22903 Plan received date: 23 Apr 2020 (Rev. 1) 2 Jun 2020 Date of comments: 18 May 2020 (Rev. 1) 12 Jun 2020 Reviewer: John Anderson County Code section 17-410 and Virginia Code §62.1-44.15:34 requires the VSMP authority to act on any NISN4P VESCP permit by issuing a project approval or denial. This project is denied for reasons listed below. The VESCP application content requirements can be found in County Code section 17-402. 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. 1. Provide SWPPP, given potential for erosion. Use Albemarle county SWPPP template. Link: httD://www.albemarle.ore/uDload/imaees/forms center/departments/Community Development/forms/Eneineerine and _WPO_Forms/Stormwater_Pollution _ Prevention_ Plan_SWPPP template.pd 2. (Rev. 1) As follow-up: a. Revise title to include reference to WP0202000026. b. Complete VPDES CGP Registration Statement, link to form: hqp://www.albemarle.org,/upload/images/forms_center/departments/Communi!y Development/forms/Engine eringtand _WPO_Forms/CGP_ Registration _ Statement _2019_FINAL _201904.pdf c. Registration Form: Indicate land disturbance has commenced, if it has. Item Section V.C. d. Sec. 3, SWPPP, Nature of Activity: Item 2.a. makes reference to `active trenching operations.' VESCP plan does not indicate trenching. Please revise SWPPP or plan for consistency. e. Sec. 4, Erosion and Sediment Control Plan: Include revised VESCP plan, once comments addressed. f. Sec. 6, Pollution Prevention Plan: Recommend provide 11" x 17" exhibit v. full-size PPP plan. g. Sec. 7, Discharges to Impaired Waters: please complete. DEQ reference links: Note: Dollins Creek is tributary to Stockton Creek, which needs a clean-up plan (p. 25 /DEQ report) i. Water quality assessment integrated report, https://www.deq.vir ig'nia.gov/programs/Water/WaterOualiiylnfonnationTMDLs/WaterQualit vAssessments/2018305(b)303(d)Inte ratg edReport.aspx ii. List of impaired waters needing clean-up plans (88 pg. report), https://www.deq.vir ig'nia.gov/Portals/O/DEQ/Water/WaterQualil3 Assessments/IntegratedRgR ort/2018/irl8_Appendixla_Category5 List.pdf iii. List of impaired waters not needing cleanup plans (112 pg. report) https://www.deg.vir ig'nia.gov/Portals/O/DEQ/Water/WaterQualityAssessments/IntegratedRgR ort/2018/irl8_Appendixla_Category5 List.pdf h. Sec. 8: Qualified personnel: List a named individual qualified to perform SWPPP inspections. i. Sec. 9, Signed Certification: sign certification. Engineering Review Comments Page 2 of 4 B. Pollution Prevention Plan (PPP) — See above. (Rev. 1) Partially addressed. As follow-up: Revise per ESC Plan review comments, and perfollow-up items (c.-f.), below. The PPP content requirements can be found in County Code section 17-404. 1. Please ensure PPP Exhibit identifies: a. Rain gauge. (Rev. 1) Addressed. (Rev. 1) Addressed. b. Construction entrance that drains to a trapping measure. (Rev. 1) Addressed. As follow-up: c. If Ex. Path (existing path through field) is stone, no revision requested; if path is soil/earth, provide stone construction entrance (CE) adjacent Dick Woods Road. d. Certification Statement, please Note: Redline Drawings are not Construction Record Drawings. e. Add WPO202000026 to PPP title. f. Label Dick Woods Road. C. Stormwater Management Plan (SWMP) — NA: VESCP only VSMP Regulation 9VAC25-870-108 requires the VSMP authority to approve or disapprove a SWMP. This plan is disapproved for reasons listed below. The stormwater management plan content requirements can be found in County Code section 17-403. D. Erosion and Sediment Control Plan (ESCP) — (Rev. 1) If text below is grayscale, comment is addressed. Virtually all comments addressed. Please note request for revisions at items 20, 21, 22. Virginia Code §62.1-44.15:55 requires the VESCP authority to approve or disapprove an ESCP. This plan is disapproved for items 20, 21, 22, which are new comments. These comments request labels, and revised grading. The erosion control plan content requirements can be found in County Code section 17-402. Sheet 1 2. Revise sheet index to list sheet 4 as Phase II. 3. Revise plan title to include ref. to WPO2020-00026. 4. Include title sheet Note that the fill activity is subject to 18-5.1.28. 5. Include Note that the land disturbance activity is subject to 17-300 (VESCP). 6. Include Note that Engineering has determined the activity is not subject to 17-302 (VSMP). 7. An ESC Plan bond is required. Please submit bond estimate request form at earliest convenience. (Rev. 1) Persists. Applicant: `An ESC Plan bond estimate request will be submitted upon tentative plan approval'. Link: httn://www.albemarle.ore/ui)load/imaees/forms center/departments/Community Develooment/forms/bonds/Bond Rea uest_to Establish a Bond.pdf Sheet 3 8. Silt fence bars entry to fill site; provide break in SF so haul trucks may enter. 9. Similarly, provide break in silt fence at base of 18' sediment trap weir. 10. Provide site -specific sediment trap profile. This is a substantial sediment trap. VESCH typical /generic detail (sheet 6) is inadequate. (Rev. 1) Applicant: `The revised plan includes two sediment traps that have been simplified to rectangular shapes. The standard detail provided in the notes and details sheets should now be sufficient for construction of both sediment traps.' Also, please seefollow-up at item 20. 11. Where proposed grade ties to existing grade, there are new permanent channels. Evaluate channel capacity /velocity against 2-, 10-yr events, respectively. Evaluate permanent channels for erosion. Provide /specify stabilization matting /blanket, if needed, for permanent channels created by proposed final grade. (late :� , o; below [ images removed with Rev. 1 comments.] ) Sheet-3-.- Sheet-4 Engineering Review Comments Page 3 of 4 12. Acquire temporary off -site construction easement, TMP 71-21, if needed. (Rev. 1) NA Applicant response (6/1/20 letter): The site has been shifted to the north to avoid impact on TMP 71-21 so that no construction easement should be necessary. 13. Revise design (as needed) to ensure no off -site erosive impact, or construction impact to TMP 71-21, unless easement acquired to allow off -site construction. Runoff may not impact adjacent parcels. Evaluate. Furnish calculations. (Rev. 1) NA Applicant response: `The proposed grading has been shifted to the north and no longer proposes any grading on areas that drain to TMP 71-2L' 14. Provide channel cross-section/s for permanent channels (north / south) created by proposed final grade, sheet 4. Sheet 4 15. Phase II diversion dike (DD) is impermissible as a permanent measure (it is a temporary ESC measure). Provide, instead, a permanent grass -lined or stabilized channel capable of withstanding 2-yr event runoff, capable of containing 10-yr event volume. 16. Certain sections of SF in Phase II lie upslope of final graded -disturbed areas, and are not strictly needed (comment applies to sheet 3, as well). 17. Revise legend to include WR. Do not recognize this symbol in the VESCH. 18. Sheet 5: Few if any references to Stormwater Management on this sheet are necessary; majority of references may be removed. Also, item 5, above. 19. Include code text at 18-5.1.28, Borrow, fill or waste areas (be-lew [18-5.1.28 text removed with Rev. 1 comments), on the plans (except 18-5.1.28.b.6., since an Erosion and Sediment Control plan is required). Ensure text is readable. Link to text: hgps://library.municode.com/va/albemarle_county/codes/code of_ordinances?nodeld=COALCOVI_CH18ZO SSSUR E 55.1 SURE 55.1.28BOFIWAAR New 20. Sheet 3: Although ST1 and ST2 Calculation tables list base dimensions, please label floor dimensions in plan view to aid construction inspection. 21. Revise grades (sheet 3, 4, 5) to show a gradual transition to 3:1 slopes. Proposed transition is 12.5:1 to 3:1, abruptly. Include a gradual, curved transition to 3:1 to mimic natural land features. Engineering will not approve flat -to -steep (12.5:1-to-3:1) sudden transition in rural areas. 3:1 slopes are permissible, but revise to show smooth curved transition. We recommend plan notes capture design intent. Ref image, below. 22. Label Dick Woods Road. ri Engineering Review Comments Page 4 of 4 The VESCP 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. Process: After approval, plan will have 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 have to be completed by the owner and submitted along with cash, certificates or sureties for the amounts specified. The agreements will have 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. If any easements are required, then after easement plat is recorded, 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 (if any). The form identifies the contractor and responsible land disturber, and 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 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; hLtp://www.albemarle.ora/dgptforins.asp?department--cdenMUo WP0202000026_Yancey Fann Pad 2_061220rev1