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HomeMy WebLinkAboutWPO201500072 Review Comments WPO VSMP 2015-10-09�pF A COUNTY 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 - Approved Project: Bridlespur Farm Project Number: WP0201500072 Owner: BSP Farm LLC, c/o R C Holsinger, Wexford, PA 15090 BSP Farms, LLC —c /o Fritz and Claudine Kundrun P.O. Box 787, Kewick, VA 22947 Owner Rep.: Gretchen Yahn, Castlerock Enterprises, Inc. -P. O. Box 333 Hume, VA 22639 [gretchen(&ceicountr o ] Plan Preparer: Carol Schumacher, Carson Ashley -45 Main Street, 1St Floor Warrenton, VA 20186 [cschumacher(acarson- ashley.com ] Plan received date: 17 Sep 2015 (Rev. 1) 6 Oct 2015 Date of comments: 1 Oct 2015 (Rev. 1) 9 Oct 2015 - Approved Reviewer: John Anderson 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. SWPPP — Provide 11" X 17" Exhibit. Recommend ESC Plan as template. Show solid/non- hazardous waste dumpster; sanitary facilities (port-a john); solvent -paint storage; concrete wash -out; on -site fuel storage. DEQ, during periodic inspections of active projects, instructs on importance of an Exhibit that shows location of these features. All should drain to containment. For example, silt fence downstream of port-a- john. Concrete wash -out, dumpster draining to trapping device (lined, in case of concrete wash -out). On- site fuel storage berm with 10ml liner, sized to hold fuel volume + 2 yr. storm event. .PDF samples available. Exhibit is not intended as a detailed design, but to show containment and locations which may change over time. Exhibit is a construction aid and resource protection/inspection management tool. (Rev. 1) Addressed. B. VSMP: SWPPP: Stormwater Management Plan (WP0201500072) VSMP Regulation 9VAC25- 870 -108 requires the VSMP authority to approve or disapprove a SWMP. This plan is approved. 1. Title — Include reference to VSMP WP0201500072. (Rev. 1) Addressed. 2. Title —Add SWM Plan sheet to index. (Rev. 1) Addressed. 3. Create SWM Plan sheet. Remove ESC measures, and highlight roof leaders to cistern, 8' grass channel, and permeable /open pavers. (Rev. 1) Addressed. 4. On this SWMP, confirm that permeable /open pavers are IP (interlocking pavers). Label IP. (Rev. 1) Design revised (permeable pavement no longer proposed). Comment NA. Engineering Review Comments Page 2 of 4 5. Permeable /open pavers: Show where underdrain daylights /plan view. Provide underdrain INV out. (Rev. 1) Design revised. Comment NA. 6. Permeable /open paver calculations: Ref. Table 7.4, VA DEQ Stormwater Design Specification No. 7, which outlines different design requirements for three scales of permeable pavement. Project proposes 9,467 SF (3,685 + 47'x 123'). Table. 7.4 requires two soil tests per practice for small -scale pavement. Provide field- verified infiltration rates. Text, p. 11, indicates testing is required for design without an underdrain. If infiltration/drain field data is available, use measured infiltration rates. If not available, please furnish at least one test in proposed permeable /open pavement location. (Rev. 1) Design revised. Comment NA. 7. Revise Eq. 7. 1, sheet 10, using Field- verified infiltration rate, variable i ( ft/day). (Rev. 1) Design revised. Comment NA. 8. Revise Eq. 7.2, sheet 10, using Field- verified infiltration rate, variable i (ft /day). (Rev. 1) Design revised. Comment NA. 9. Revise Eq. 7.3, sheet 10: use k =100 ft/day (BMP assumed value). (Rev. 1) Design revised. Comment NA. 10. Equation 7.4 - recalculate depth of reservoir layer (ft.) to reflect revised Eq. 7.1, 7.2, 7.3. (Rev. 1) Design revised. Comment NA. 11. Revise open paver cross - section to reflect items 6 -10, above. (Rev. 1) Design revised. Comment NA. 12. Provide observation well. Ref. p. 14, Spec. No. 7. Also Table. 7.5. (Rev. 1) Design revised. Comment NA. 13. Revise open paver cross - section (sheet 10) bedding course to specify 2 in. depth of No. 8 stone over 3 to 4 inches of No. 57. (Spec. No. 7, Table 7.5) (Rev. 1) Design revised. Comment NA. 14. Open paver cross - section: Revise leader line arrow for perforated pipe so that it points to perforated pipe. (Rev. 1) Design revised. Comment NA. 15. 8' Grass channel: Provide cross - section on SWM Plan sheet. (Rev. 1) Addressed. 16. Recommend pretreatment for 8' grass channel. Ref. p. 13, Sec. 6.3, VA Stormwater Design Spec. No. 3. (Rev. 1) Addressed. 17. Provide (transfer critical) installation and maintenance information to plan to aid construction and periodic inspection. Ref. DEQ Stormwater Design Specification No. 3, Sec. 8, Sec. 9. (Rev. 1) Addressed. 18. Cistern: Provide plan/profile (not overly detailed). Show depth/relationship to roof runoff collection. (Rev. 1) Addressed. 19. Cistern: Provide system installation and maintenance information to aid construction and inspection. (Also, item 17, above) (Rev. 1) Addressed. 20. Pavers: Provide Clearinghouse installation and maintenance information to aid construction and periodic inspection. (Also, item 17, above) (Rev. 1) Design revised. Comment NA. 21. Sheet 5 (on SWMP): Label area (SF) stable & equestrian barn roof that will drain to the cistern. (Rev. 1) Addressed. 22. Sheet 5 (on SWMP): Label length of 47' wide permeable open pavers. (Rev. 1) Design revised. Comment NA. 23. Sheet 5 (on SWMP): Label length of proposed 8' wide swale (grass channel). (Rev. 1) Addressed. 24. Sheet 5: Provide cross - section for proposed 6' drainage swale, depth/slope. (Rev. 1) Addressed. 25. Sheet 5: Show cross - section detail for proposed San. Line pipe encasement at stream crossing. Spec. encasement. (Rev. 1) Addressed. 26. Sheet 5: Remove 458' contour on 47' wide pavers. Spot elevations indicate paver Elev. < 458'. (Rev. 1) Design revised. Comment NA. 27. Sheet 6: Misprint at proposed Culv. Calc: Q 10 per pipe = 42.3/2 =21.15 cfs, should read Q_2. (Rev. 1) Addressed. 28. Sheet 7: Revise CN worksheets: 2.75 Ac. C soils, 25.25 Ac. B soils. [ref. email: 9/30/2015 4:13 PM] (Rev. 1) Addressed. 29. Sheet 7: Revise Scale in Feet (1" = 400'). Plan scale is 1" =200'. (Rev. 1) Addressed. Engineering Review Comments Page 3 of 4 30. Sheet 9: P1, P2, P10, Charlottesville, VA: 3.0, 3.7, and 5.6. Revise TR -55 Calculations. (Rev. 1) Addressed. [ http: // hdsc. nws. noaa. gov /hdsc /pfds /pfds_map cont.html ?bkmrk =va ] C. VSMP: SWPPP: Erosion Control Plan (WPO201500072) Virginia Code §62.1- 44.15:55 requires the VESCP authority to approve or disapprove an ESCP. This plan is M12roved. 1. Sheet 5: Label Area to be Disturbed, =3.00 Ac. (General VPDES Permit Registration) (Rev. 1) Addressed. 2. Sheet 3: Add Albemarle County General Construction Notes (1. -9.); General Construction Notes for ESC Plans (1. -20.) (Rev. 1) Addressed. Attached Link: https: / /www.,google.com/url ?q= http:// www.albemarle.org /uploadJimages /forms_ center /departments /Communityy Devel opment/forms/Engineering and WPO Forms/En ing eering_Plan Review General Notes Feb20l4.pdf &sa= U &ved =0 CAQQFjAAahUKEwjlu4i36J IAhUBMz4KHflZWBxM &client = intemal -uds- cse &usg= AFQjCNFIgT4j S4rxYj 8edBJdRKOWGPh2vw D. VSMP: Mitigation Plan The mitigation plan requirements can be found in County Code section 17 -406 1. Sheet 11: Avoid San. Line to drain field. Provide clearance between Mitigation plantings and San. Line. (Rev. 1) Addressed. 2. Sheet 12/Understory Evergreen table: 6" high should read 4' high. —Ref. Restoration Establishment Table B. Attached. (Rev. 1) Addressed. Process: After approval, plans will need to be bonded. The bonding process is begun by submitting a bond estimate request form (complete) and fee to the Department of Community Development. One of the plan reviewers will prepare estimates (complete) 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 request a pre - construction conference by completing a 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. Engineering Review Comments Page 4 of 4 County forms can be found on the county website forms center under engineering; hllp://www.albemarle.orp-/deptforms.asp?dei2artment--cdengmTo Thank you - 434.296 -5832 —0069 File: WPO201500072 Bridlespur FarmVSMP 100915rev1 Approv �pF A COUNTY 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: Bridlespur Farm Project Number: WP0201500072 Owner: BSP Farm LLC, c/o R C Holsinger, Wexford, PA 15090 BSP Farms, LLC —c /o Fritz and Claudine Kundrun P.O. Box 787, Kewick, VA 22947 Owner Rep.: Gretchen Yahn, Castlerock Enterprises, Inc. -P. O. Box 333 Hume, VA 22639 [gretchen(&ceicountr o ] Plan Preparer: Carol Schumacher, Carson Ashley -45 Main Street, 1St Floor Warrenton, VA 20186 [cschumacher(acarson- ashley.com ] Plan received date: 17 Sep 2015 Date of comments: 1 Oct 2015 Reviewer: John Anderson 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. SWPPP — Provide 11" x 17" Exhibit. Recommend ESC Plan as template. Show solid/non- hazardous waste dumpster; sanitary facilities (port-a john); solvent -paint storage; concrete wash -out; on -site fuel storage. DEQ, during periodic inspections of active projects, instructs on importance of an Exhibit that shows location of these features. All should drain to containment. For example, silt fence downstream of port-a- john. Concrete wash -out, dumpster draining to trapping device (lined, in case of concrete wash -out). On- site fuel storage berm with 10ml liner, sized to hold fuel volume + 2 yr. storm event. .PDF samples available. Exhibit is not intended as a detailed design, but to show containment and locations which may change over time. Exhibit is a construction aid and resource protection/inspection management tool. B. VSMP: SWPPP: Stormwater Management Plan (WP0201500072) VSMP Regulation 9VAC25- 870 -108 requires the VSMP authority to approve or disapprove a SWMP. This plan is disapproved for reasons provided in comments below. The stormwater management plan content requirements can be found in County Code section 17 -403. 1. Title — Include reference to VSMP WP0201500072. 2. Title —Add SWM Plan sheet to index. 3. Create SWM Plan sheet. Remove ESC measures, and highlight roof leaders to cistern, 8' grass channel, and permeable /open pavers. 4. On this SWMP, confirm that permeable /open pavers are IP (interlocking pavers). Label IP. 5. Permeable /open pavers: Show where underdrain daylights /plan view. Provide underdrain INV out. 6. Permeable /open paver calculations: Ref. Table 7.4, VA DEQ Stormwater Design Specification No. 7, which outlines different design requirements for three scales of permeable pavement. Project proposes Engineering Review Comments Page 2 of 3 9,467 SF (3,685 + 47'x 123'). Table. 7.4 requires two soil tests per practice for small -scale pavement. Provide field- verified infiltration rates. Text, p. 11, indicates testing is required for design without an underdrain. If infiltration/drain field data is available, use measured infiltration rates. If not available, please furnish at least one test in proposed permeable /open pavement location. 7. Revise Eq. 7. 1, sheet 10, using Field- verified infiltration rate, variable i (ft/day). 8. Revise Eq. 7.2, sheet 10, using Field- verified infiltration rate, variable i (ft/day). 9. Revise Eq. 7.3, sheet 10: use k =100 ft/day (BMP assumed value). 10. Equation 7.4 - recalculate depth of reservoir layer (ft.) to reflect revised Eq. 7.1, 7.2, 7.3. 11. Revise open paver cross - section to reflect items 6 -10, above. 12. Provide observation well. Ref. p. 14, Spec. No. 7. Also Table. 7.5. 13. Revise open paver cross - section (sheet 10) bedding course to specify 2 in. depth of No. 8 stone over 3 to 4 inches of No. 57. (Spec. No. 7, Table 7.5) 14. Open paver cross - section: Revise leader line arrow for perforated pipe so that it points to perforated pipe. 15. 8' Grass channel: Provide cross - section on SWM Plan sheet. 16. Recommend pretreatment for 8' grass channel. Ref. p. 13, Sec. 6.3, VA Stormwater Design Spec. No. 3. 17. Provide (transfer critical) installation and maintenance information to plan to aid construction and periodic inspection. Ref. DEQ Stormwater Design Specification No. 3, Sec. 8, Sec. 9. 18. Cistern: Provide plan/profile (not overly detailed). Show depth/relationship to roof runoff collection. 19. Cistern: Provide system installation and maintenance information to aid construction and inspection. (Also, item 17, above) 20. Pavers: Provide Clearinghouse installation and maintenance information to aid construction and periodic inspection. (Also, item 17, above) 21. Sheet 5 (on SWMP): Label area (SF) stable & equestrian barn roof that will drain to the cistern. 22. Sheet 5 (on SWMP): Label length of 47' wide permeable open pavers. 23. Sheet 5 (on SWMP): Label length of proposed 8' wide Swale (grass channel). 24. Sheet 5: Provide cross - section for proposed 6' drainage swale, depth/slope. 25. Sheet 5: Show cross - section detail for proposed San. Line pipe encasement at stream crossing. Spec. encasement. 26. Sheet 5: Remove 458' contour on 47' wide pavers. Spot elevations indicate paver Elev. < 458'. 27. Sheet 6: Misprint at proposed Culy. Calc: Q 10 per pipe = 42.3/2 =21.15 cfs, should read Q2. 28. Sheet 7: Revise CN worksheets: 2.75 Ac. C soils, 25.25 Ac. B soils. [ref. email: 9/30/2015 4:13 PM] 29. Sheet 7: Revise Scale in Feet (1" = 400'). Plan scale is 1" =200'. 30. Sheet 9: P1, P2, P10, Charlottesville, VA: 3.0, 3.7, and 5.6. Revise TR -55 Calculations. [ http:// hdsc. nws.noaa.gov/hdsc /pfds /pfds_map cont.html ?bkmrk =va ] C. VSMP: SWPPP: Erosion Control Plan (WP0201500072) Virginia Code §62.1- 44.15:55 requires the VESCP authority to approve or disapprove an ESCP. This plan is disapproved for reasons provided in comments below. The erosion control plan content requirements can be found in County Code section 17 -402. 1. Sheet 5: Label Area to be Disturbed, =3.00 Ac. (General VPDES Permit Registration) 2. Sheet 3: Add Albemarle County General Construction Notes (1. -9.); General Construction Notes for ESC Plans (1. -20.) Attached Link: hgps:// www. google. com/ url? q= ha:// www.albemarle.org /ui)load/images /forms_ center /departments /Communiiy Devel opment/forms/En ineering_and_WPO_Forms/En ineering_Plan_ Review_ General_ Notes_ Feb20l4.pdf &sa= U &ved =0 CAOOFjAAahUKEwjlu4i36J IAhUBMz4KHfRWBxM &client= internal -uds- cse &usg= AFQjCNFIgT4j S4rxYj 8edBJdRKOWGPh2vw Engineering Review Comments Page 3 of 3 D. VSMP: Mitigation Plan The mitigation plan requirements can be found in County Code section 17 -406 1. Sheet 11: Avoid San. Line to drain field. Provide clearance between Mitigation plantings and San. Line. 2. Sheet 12/Understory Evergreen table: 6" high should read 4' high. —Ref. Restoration Establishment Table B. Attached. Engineering plan review staff are available from 2 -4 PM on Thursdays, should you require a meeting to discuss this review. Plan review staff available at 434 - 296 -5832 (- x3069) should you have questions. 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 request a pre - construction conference by completing a 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--cdengMTo Thank you - 434.296 -5832 —x3069 File: WP0201500072— Bridlespur Farm _VSMP-100115 Short Review Comments Report for: WPO201500072 SubApplication Type: Bridlespur Farm Stormwater Management/BMP Plan Erosion and Sediment Control Plan Stream Buffer Mitigation Plan Date Completed:10/01/2015 Reviewer:John Anderson Engineering Review Status:Denied Reviews Comments: Division: Date Completed:10/07/2015 Reviewer:John Anderson Engineering Review Status:Pending Reviews Comments:Estim on Local C:\ janderson2 10/7/2015 6:48 PM Division: Date Completed:10/09/2015 Reviewer:John Anderson Engineering Review Status:Approved Reviews Comments:prior comments addressed -janderson2 10/9/2015 4:25 PM Division: Date Completed:10/27/2015 Reviewer:Ana Kilmer Review Status:Approved Reviews Comments:10/27/2015 - swa recorded at clerks office. deed book 4689, page 128 Division: Page: 1 of 1 County of Albemarle Printed On: June 14, 2016