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HomeMy WebLinkAboutWPO201800029 Review Comments WPO VSMP 2018-11-16COUNTY 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: The Center at Belvedere Project file number: AT0201800029 Plan preparer: Timmons Group — Craig Kotarski [craig.kotarski@timmons.com] Owner or rep.: Senior Center, Inc. — Peter Thompson [peter@seniorcenterinc.org] Plan received date: 23 Apr 2018 Rev. 1 received date: 18 Jul 2018 Rev. 2 received date: 24 Sept 2018 Rev. 3 received date: 13 Nov 2018 Date of comments: 21 May 2018 Rev. 1 comments: 31 Aug 2018 Rev. 2 comments: 22 Oct 2018 Rev. 3: Comments: 16 Nov 2018 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 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 ESCP, (3) a SWMP, and (4) any TMDL measures necessary. 1. SWPPP was not provided. Two copies of SWPPP required before plan approval. See template at link below. Ensure that #1 and #9 are signed. httD://www.albemarle.orL/unload/imaizes/forms center/departments/Community Development/for ms/Eneineerina and WPO Forms/Stormwater Pollution Prevention Plan SWPPP template.pdf Rev. 1: Please have items #1 and #9 signed. Rev. 2: Plan cannot be approved before items are signed. Rev. 3: Comment addressed. B. Pollution Prevention Plan (PPP) The PPP content requirements can be found in County Code section 17-404. 1. PPP was not provided. Two copies of PPP required before plan approval. Rev. 1: Comment addressed. C. Stormwater Management Plan (SWMP) VSMP Regulation 9VAC25-870-108 requires the VSMP authority to approve or disapprove a Engineering Review Comments Page 2 of 4 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. Cover sheet should not say Final Site Plan. This is the WPO VSMP Plan. Please revise. Include the WP0201800029 number. Rev. 1: Cover sheet still says Final Site Plan. Rev. 2: Comment addressed. 2. Provide explanation or outline of compliance with stormwater quantity and quality requirements. Is project grandfathered? What is the approved plan number for the existing pond? Since use of the existing pond is proposed with this plan, provide information showing that the pond was built as designed on the approved plan. Also, show that the proposed drainage area to the pond meets the design on the approved plan. Rev. 1: This plan cannot be approved until the amendment to WP02006-00048 is approved. Also, nutrient credits (if going that route) must be purchased before plan approval. Be sure to contact Ana Kilmer (akilmer(aalbemarle.org or 434-296-5832 ext. 3246) before purchasing the credits. Rev 2: Comment still valid. Rev. 3: Comment still valid. Plan can be approved, however land disturbance will not be issued until nutrient credits are purchased. 3. Stream buffer is shown on plan along with improvements/grading in this buffer. Please show proposed buffer outside of all improvements. The gravel trail can be inside the buffer. Rev. 1: The grading near the stream is too extensive. This is a perennial stream, which should have a 100 ft. buffer. The original plan had minimal impacts to the 100 ft buffer, which was allowed by the County Engineer and was discussed with the applicant at that time. Rev. 2: Comment addressed. 4. [Section 8 — Design Standards Manual] Slopes steeper than 3:1 must be permanently stabilized with landscaping vegetation hardier than grass, which will not require mowing. Ensure this is noted on the landscape plan. Eliminate any slopes steeper than 2:1. Rev. 1: Comment addressed. 5. Stamped, engineered design may be necessary for retaining walls. Provide more detail to determine (tops, bottoms, etc.). Show geogrid location (as necessary). Rev. 1: Provide enough spots to ensure the design requirements of County Code 30.7.5.a are met. Also, provide 3 ft horizontally between each wall. Rev. 2: Code 30.7.5.a says, A minimum horizontal distance of three (3) feet shall be maintained between each individual wall. The plan currently shows 3 feet from the outside of each wall, not between them. Rev. 3: Comment addressed. 6. Provide drainage divides to proposed storm inlets. Rev. 1: Comment addressed. 7. Show throat length for drop inlets on storm profiles. Rev. 1: Comment addressed. 8. Note #13 on the cover sheet states that additional stormwater quality may met by purchase of nutrient credits. Please elaborate. How is water quality met on site/with existing pond? How many credits are necessary? Rev. 1: This plan cannot be approved until the amendment to WP02006-00048 is approved. Also, nutrient credits (if going that route) must be purchased before plan approval. Be sure to contact Ana Kilmer (akilmer(aalbemarle.org or 434-296- 5832 ext. 3246) before purchasing the credits. Rev. 1: Comment still valid. Rev. 3: Comment still valid. Plan can be approved, however land disturbance will not be issued until nutrient credits are purchased. 9. Rev. 1: The steep slopes appear to be reversed on sheet 2.1. Please revise to match the County GIS. Also, ensure there is no disturbance to the preserved slopes. The outfall from storm structure 130 must be extended to the SWM facility. It cannot outfall onto the preserved slopes. Be sure to show the outlet protection calculation and provide an easement for the pipe offsite. Rev. 2: It appears silt fence is shown going through the preserved slopes. The only disturbance should be for the pipe outfall. The pipe outfall at the water surface elevation is ok. Rev. 3: Comment addressed. Engineering Review Comments Page 3 of 4 10. Rev. 1: Update or remove the date under the title on the Cover Sheet. Rev. 2: Comment addressed. 11. Rev. 1: Stormwater maintenance agreement is necessary for the existing pond. Provide the deed book and page if it was already recorded, or work with Ana Kilmer to provide an agreement. Rev. 2: Is this for the easement? SWM maintenance agreement is necessary. Rev. 3: Please provide DB & PG for executed SWM maintenance agreement. 12. Rev.l: Provide storm drain calculations. Rev. 2: The maximum velocity the county is accepting is 15 ft/s. Pipes 130-132 appear to have higher velocities. Please revise. REv. 3: Comment addressed. 13. Rev. 1: Provide details and maintenance requirements for cartridge filter. Rev. 2: Comment addressed. 14. Rev. 1: Slope from CF -2 to EW -1 is too steep. Per VDOT drainage manual 9.4.8.7,16% is recommended maximum. Over 16% requires anchors. Rev. 1: Provide details and maintenance requirements for cartridge filter. Rev. 2: Comment addressed. 15. Rev. 1: The plan amendment is for WPO2006-00048, not WPO2005-0007. Please revise the narrative on Sheet C6.1. Rev. 1: Provide details and maintenance requirements for cartridge filter. Rev. 2: Comment addressed. 16. Rev. 2: [Sheet C6.11 Narrative refers to pre-developed/post-developed flows shown on the WPO amendment. However, these numbers are not shown on the amendment? Narrative also references a portion of the site that does not drain to the pond. Show the drainage area/calcualtions for this area to match up with the flows presented on the plan. Rev. 2: Comment addressed. 17. Rev. 3: Please provide a new application form. The old application has the previous engineer's information on it. The fee has already been paid, just need a new form. D. Erosion and Sediment Control Plan (ESOP) Virginia Code §62.1-44.15:55 requires the VESCP authority to approve or disapprove an ESCP. This plan is approved, and the reasons are provided in the comments below. The erosion control plan content requirements can be found in County Code section 17-402. 1. Limits of clearing and grading should be outside of all proposed work. This includes silt fence. Rev. 1: Comment addressed. 2. Show the limits of clearing and grading on the demolition plan sheets. Rev. 1: Comment addressed. 3. Is tree protection necessary for any of the existing trees? Rev. 1: Comment addressed. 4. Provide outlet protection for storm pipe entering the pond. Be sure to show outlet protection calculations. Rev. 1: Show outlet protection sizing calculations for the proposed pipe entering the pond. Rev. 2: Velocity calculations show 16.1 ft/s, which would require class II per the detail? However, class Al is shown? Please clarify. Rev. 3: Comment addressed. 5. Please clarify safety fence linetype. The legend does not appear to match what is on the plan. Rev. 1: Comment addressed. 6. Show the drainage divides to silt fence to ensure it is limited to 1/4 acre per 100 ft of silt fence. Rev. 1: Comment addressed. 7. Show the proposed wash rack location for the construction entrance. Ensure the water will drain to an erosion facility. Rev. 1: Comment not addressed. WR location not evident. Rev. 2: Comment addressed. 8. Why is construction entrance not located at a proposed entrance to the site? Rev. 1: Comment addressed. 9. If a stockpile area is necessary, show it on the plans with perimeter controls. Rev. 1: Comment addressed. 10. The sequence of construction on Sheet C 112 does not mention Phase 1 or 2. Rev. 1: Comment addressed. 11. Rev. 1: Sheet C3.1 label says sediment basin. Please revise to say trap. Rev. 1: Comment addressed. Engineering Review Comments Page 4 of 4 12. Rev. 1: Provide construction entrance and wash rack for phase II. Rev. 1: Comment addressed. 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. 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 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; http://www.albemarle.org/deptforins.asp?department--cdengMTo 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 title: The Center at Belvedere Project file number: AT0201800029 Plan preparer: Timmons Group — Craig Kotarski [craig.kotarski@timmons.com] Owner or rep.: Senior Center, Inc. — Peter Thompson [peter@seniorcenterinc.org] Plan received date: 23 Apr 2018 Rev. 1 received date: 18 Jul 2018 Rev. 2 received date: 24 Sept 2018 Date of comments: 21 May 2018 Rev. 1 comments: 31 Aug 2018 Rev. 2 comments: 22 Oct 2018 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 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 ESCP, (3) a SWMP, and (4) any TMDL measures necessary. SWPPP was not provided. Two copies of SWPPP required before plan approval. See template at link below. Ensure that #1 and #9 are signed. httD://www.albemarle.orL/unload/images/forms center/departments/Community Development/for ms/Enaineerina and WPO Forms/Stormwater Pollution Prevention Plan SWPPP template.pdf Rev. 1: Please have items #1 and #9 signed. Rev. 2: Plan cannot be approved before items are signed. B. Pollution Prevention Plan (PPP) The PPP content requirements can be found in County Code section 17-404. PPP was not provided. Two copies of PPP required before plan approval. Rev. 1: Comment addressed. 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. Engineering Review Comments Page 2 of 4 1. Cover sheet should not say Final Site Plan. This is the WPO VSMP Plan. Please revise. Include the WP0201800029 number. Rev. 1: Cover sheet still says Final Site Plan. Rev. 2: Comment addressed. 2. Provide explanation or outline of compliance with stormwater quantity and quality requirements. Is project grandfathered? What is the approved plan number for the existing pond? Since use of the existing pond is proposed with this plan, provide information showing that the pond was built as designed on the approved plan. Also, show that the proposed drainage area to the pond meets the design on the approved plan. Rev. 1: This plan cannot be approved until the amendment to WP02006-00048 is approved. Also, nutrient credits (if going that route) must be purchased before plan approval. Be sure to contact Ana Kilmer (akilmer(aalbemarle.org or 434-296-5832 ext. 3246) before purchasing the credits. Rev 2: Comment still valid. 3. Stream buffer is shown on plan along with improvements/grading in this buffer. Please show proposed buffer outside of all improvements. The gravel trail can be inside the buffer. Rev. 1: The grading near the stream is too extensive. This is a perennial stream, which should have a 100 ft. buffer. The original plan had minimal impacts to the 100 ft buffer, which was allowed by the County Engineer and was discussed with the applicant at that time. Rev. 2: Comment addressed. 4. [Section 8 Design Standards Manual] Slopes steeper than 3:1 must be permanently stabilized with landscaping vegetation hardier than grass, which will not require mowing. Ensure this is noted on the landscape plan. Eliminate any slopes steeper than 2:1. Rev. 1: Comment addressed. 5. Stamped, engineered design may be necessary for retaining walls. Provide more detail to determine (tops, bottoms, etc.). Show geogrid location (as necessary). Rev. 1: Provide enough spots to ensure the design requirements of County Code 30.7.5.a are met. Also, provide 3 ft horizontally between each wall. Rev. 2: Code 30.7.5.a says, A minimum horizontal distance of three (3) feet shall be maintained between each individual wall. The plan currently shows 3 feet from the outside of each wall, not between them. 6. Provide drainage divides to proposed storm inlets. Rev. 1: Comment addressed. 7. Show throat length for drop inlets on storm profiles. Rev. 1: Comment addressed. 8. Note #13 on the cover sheet states that additional stormwater quality may met by purchase of nutrient credits. Please elaborate. How is water quality met on site/with existing pond? How many credits are necessary? Rev. 1: This plan cannot be approved until the amendment to WP02006-00048 is approved. Also, nutrient credits (if going that route) must be purchased before plan approval. Be sure to contact Ana Kilmer (akilmerAalbemarle.org or 434-296- 5832 ext. 3246) before purchasing the credits. Rev. 1: Comment still valid. 9. Rev. 1: The steep slopes appear to be reversed on sheet 2.1. Please revise to match the County GIS. Also, ensure there is no disturbance to the preserved slopes. The outfall from storm structure 130 must be extended to the SWM facility. It cannot outfall onto the preserved slopes. Be sure to show the outlet protection calculation and provide an easement for the pipe offsite. Rev. 2: It appears silt fence is shown going through the preserved slopes. The only disturbance should be for the pipe outfall. The pipe outfall at the water surface elevation is ok. 10. Rev. 1: Update or remove the date under the title on the Cover Sheet. Rev. 2: Comment addressed. 11. Rev. 1: Stormwater maintenance agreement is necessary for the existing pond. Provide the deed book and page if it was already recorded, or work with Ana Kilmer to provide an agreement. Rev. 2: Is this for the easement? SWM maintenance agreement is necessary. 12. Rev.l: Provide storm drain calculations. Rev. 2: The maximum velocity the county is accepting is 15 ft/s. Pipes 130-132 appear to have higher velocities. Please revise. 13. Rev. 1: Provide details and maintenance requirements for cartridge filter. Rev. 2: Comment Engineering Review Comments Page 3 of 4 addressed. 14. Rev. 1: Slope from CF -2 to EW -1 is too steep. Per VDOT drainage manual 9.4.8.7, 16% is recommended maximum. Over 16% requires anchors. Rev. 1: Provide details and maintenance requirements for cartridge filter. Rev. 2: Comment addressed. 15. Rev. 1: The plan amendment is for WP02006-00048, not WP02005-0007. Please revise the narrative on Sheet C6.1. Rev. 1: Provide details and maintenance requirements for cartridge filter. Rev. 2: Comment addressed. 16. Rev. 2: [Sheet C6.1] Narrative refers to pre-developed/post-developed flows shown on the WPO amendment. However, these numbers are not shown on the amendment? Narrative also references a portion of the site that does not drain to the pond. Show the drainage area/calcualtions for this area to match up with the flows presented on the plan. 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. 1. Limits of clearing and grading should be outside of all proposed work. This includes silt fence. Rev. 1: Comment addressed. 2. Show the limits of clearing and grading on the demolition plan sheets. Rev. 1: Comment addressed. 3. Is tree protection necessary for any of the existing trees? Rev. 1: Comment addressed. 4. Provide outlet protection for storm pipe entering the pond. Be sure to show outlet protection calculations. Rev. 1: Show outlet protection sizing calculations for the proposed pipe entering the pond. Rev. 2: Velocity calculations show 16.1 ft/s, which would require class II per the detail? However, class Al is shown? Please clarify. 5. Please clarify safety fence linetype. The legend does not appear to match what is on the plan. Rev. 1: Comment addressed. 6. Show the drainage divides to silt fence to ensure it is limited to 1/4 acre per 100 ft of silt fence. Rev. 1: Comment addressed. 7. Show the proposed wash rack location for the construction entrance. Ensure the water will drain to an erosion facility. Rev. 1: Comment not addressed. WR location not evident. Rev. 2: Comment addressed. 8. Why is construction entrance not located at a proposed entrance to the site? Rev. 1: Comment addressed. 9. If a stockpile area is necessary, show it on the plans with perimeter controls. Rev. 1: Comment addressed. 10. The sequence of construction on Sheet C 112 does not mention Phase 1 or 2. Rev. 1: Comment addressed. 11. Rev. 1: Sheet CM label says sediment basin. Please revise to say trap. Rev. 1: Comment addressed. 12. Rev. 1: Provide construction entrance and wash rack for phase 11. Rev. 1: Comment addressed. 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 Engineering Review Comments Page 4 of 4 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 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; hiq2://www.albemarle.or�z/deptfon-ns.ap?department--cdena3Wo 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 title: The Center at Belvedere Project file number: WP0201800029 Plan preparer: WW Associates — Herb White [hwhite@wwassociates.net] Owner or rep.: Senior Center, Inc. — Peter Thompson [peter@seniorcenterinc.org] Plan received date: 23 Apr 2018 Rev. 1 received date: 18 Jul 2018 Date of comments: 21 May 2018 Rev. 1 comments: 31 Aug 2018 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 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 ESCP, (3) a SWMP, and (4) any TMDL measures necessary. SWPPP was not provided. Two copies of SWPPP required before plan approval. See template at link below. Ensure that #1 and #9 are signed. http://www.albemarle.org/upload/images/forms_center/departments/Community Development/for ms/Engineering and _WPO _Forms/Stormwater_Pollution _Prevention _ Plan_ SWPPP_template.pdf Rev. 1: Please have items #1 and #9 signed. B. Pollution Prevention Plan (PPP) The PPP content requirements can be found in County Code section 17-404. PPP was not provided. Two copies of PPP required before plan approval. Rev. 1: Comment addressed. 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. Cover sheet should not say Final Site Plan. This is the WPO VSMP Plan. Please revise. Include the WP0201800029 number. Rev. 1: Cover sheet still says Final Site Plan. 2. Provide explanation or outline of compliance with stormwater quantity and quality requirements. Engineering Review Comments Page 2 of 4 Is project grandfathered? What is the approved plan number for the existing pond? Since use of the existing pond is proposed with this plan, provide information showing that the pond was built as designed on the approved plan. Also, show that the proposed drainage area to the pond meets the design on the approved plan. Rev. 1: This plan cannot be approved until the amendment to WPO2006-00048 is approved. Also, nutrient credits (if going that route) must be purchased before plan approval. Be sure to contact Ana Kilmer (akilmer(aalbemarle.or2 or 434-296-5832 ext. 3246) before purchasing the credits. 3. Stream buffer is shown on plan along with improvements/grading in this buffer. Please show proposed buffer outside of all improvements. The gravel trail can be inside the buffer. Rev. 1: The grading near the stream is too extensive. This is a perennial stream, which should have a 100 ft. buffer. The original plan had minimal impacts to the 100 ft buffer, which was allowed by the County Engineer and was discussed with the applicant at that time. 4. [Section 8 — Design Standards Manual] Slopes steeper than 3:1 must be permanently stabilized with landscaping vegetation hardier than grass, which will not require mowing. Ensure this is noted on the landscape plan. Eliminate any slopes steeper than 2:1. Rev. 1: Comment addressed. 5. Stamped, engineered design may be necessary for retaining walls. Provide more detail to determine (tops, bottoms, etc.). Show geogrid location (as necessary). Rev. 1: Provide enough spots to ensure the design requirements of County Code 30.7.5.a are met. Also, provide 3 ft horizontally between each wall. 6. Provide drainage divides to proposed storm inlets. Rev. 1: Comment addressed. 7. Show throat length for drop inlets on storm profiles. Rev. 1: Comment addressed. 8. Note #13 on the cover sheet states that additional stormwater quality may met by purchase of nutrient credits. Please elaborate. How is water quality met on site/with existing pond? How many credits are necessary? Rev. 1: This plan cannot be approved until the amendment to WPO2006-00048 is approved. Also, nutrient credits (if going that route) must be purchased before plan approval. Be sure to contact Ana Kilmer (akilmer(a,albemarle.org or 434-296- 5832 ext. 3246) before purchasing the credits. 9. Rev. 1: The steep slopes appear to be reversed on sheet 2.1. Please revise to match the County GIS. Also, ensure there is no disturbance to the preserved slopes. The outfall from storm structure 130 must be extended to the SWM facility. It cannot outfall onto the preserved slopes. Be sure to show the outlet protection calculation and provide an easement for the pipe offsite. 10. Rev. 1: Update or remove the date under the title on the Cover Sheet. 11. Rev. 1: Stormwater maintenance agreement is necessary for the existing pond. Provide the deed book and page if it was already recorded, or work with Ana Kilmer to provide an agreement. 12. Rev.1: Provide storm drain calculations. 13. Rev. 1: Provide details and maintenance requirements for cartridge filter. 14. Rev. 1: Slope from CF -2 to EW -1 is too steep. Per VDOT drainage manual 9.4.8.7, 16% is recommended maximum. Over 16% requires anchors. 15. Rev. 1: The plan amendment is for WPO2006-00048, not WPO2005-0007. Please revise the narrative on Sheet C6.1. 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. Limits of clearing and grading should be outside of all proposed work. This includes silt fence. Rev. 1: Comment addressed. 2. Show the limits of clearing and grading on the demolition plan sheets. Rev. 1: Comment addressed. 3. Is tree protection necessary for any of the existing trees? Rev. 1: Comment addressed. 4. Provide outlet protection for storm pipe entering the pond. Be sure to show outlet protection calculations. Rev. 1: Show outlet protection sizing calculations for the proposed pipe entering the pond. 5. Please clarify safety fence linetype. The legend does not appear to match what is on the plan. Rev. 1: Comment addressed. 6. Show the drainage divides to silt fence to ensure it is limited to 1/4 acre per 100 ft of silt fence. Rev. 1: Comment addressed. 7. Show the proposed wash rack location for the construction entrance. Ensure the water will drain to an erosion facility. Rev. 1: Comment not addressed. WR location not evident. 8. Why is construction entrance not located at a proposed entrance to the site? Rev. 1: Comment addressed. 9. If a stockpile area is necessary, show it on the plans with perimeter controls. Rev. 1: Comment addressed. 10. The sequence of construction on Sheet C112 does not mention Phase 1 or 2. Rev. 1: Comment addressed. 11. Rev. 1: Sheet C3.1 label says sediment basin. Please revise to say trap. 12. Rev. 1: Provide construction entrance and wash rack for phase II. 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. 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 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 Engineering Review Comments Page 4 of 4 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=cdengwno 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 title: The Center at Belvedere Project file number: WP0201800029 Plan preparer: WW Associates — Herb White [hwhite@wwassociates.net] Owner or rep.: Senior Center, Inc. — Peter Thompson [peter@seniorcenterinc.org] Plan received date: 23 Apr 2018 Date of comments: 21 May 2018 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 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 ESCP, (3) a SWMP, and (4) any TMDL measures necessary. 1. SWPP was not provided. Two copies of SWPPP required before plan approval. See template at link below. Ensure that #I and #9 are signed. http://www.albemarle.orgLupload/images/forms_center/departments/Community Development/for ms/En ing eering_and_WPO Forms/Stormwater Pollution Prevention PlanSWPPP template.pdf B. Pollution Prevention Plan (PPP) The PPP content requirements can be found in County Code section 17-404. PPP was not provided. Two copies of PPP required before plan approval. 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. Cover sheet should not say Final Site Plan. This is the WPO VSMP Plan. Please revise. Include the WP0201800029 number. 2. Provide explanation or outline of compliance with stormwater quantity and quality requirements. Is project grandfathered? What is the approved plan number for the existing pond? Since use of the existing pond is proposed with this plan, provide information showing that the pond was built as designed on the approved plan. Also, show that the proposed drainage area to the pond meets the design on the approved plan. Engineering Review Comments Page 2 of 3 3. Stream buffer is shown on plan along with improvements/grading in this buffer. Please show proposed buffer outside of all improvements. The gravel trail can be inside the buffer. 4. [Section 8 — Design Standards Manual] Slopes steeper than 3:1 must be permanently stabilized with landscaping vegetation hardier than grass, which will not require mowing. Ensure this is noted on the landscape plan. Eliminate any slopes steeper than 2:1. 5. Stamped, engineered design may be necessary for retaining walls. Provide more detail to determine (tops, bottoms, etc.). Show geogrid location (as necessary). 6. Provide drainage divides to proposed storm inlets. 7. Show throat length for drop inlets on storm profiles. 8. Note # 13 on the cover sheet states that additional stormwater quality may met by purchase of nutrient credits. Please elaborate. How is water quality met on site/with existing pond? How many credits are necessary? 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. 1. Limits of clearing and grading should be outside of all proposed work. This includes silt fence. 2. Show the limits of clearing and grading on the demolition plan sheets. 3. Is tree protection necessary for any of the existing trees? 4. Provide outlet protection for storm pipe entering the pond. Be sure to show outlet protection calculations. 5. Please clarify safety fence linetype. The legend does not appear to match what is on the plan. 6. Show the drainage divides to silt fence to ensure it is limited to '/4 acre per 100 ft of silt fence. 7. Show the proposed wash rack location for the construction entrance. Ensure the water will drain to an erosion facility. 8. Why is construction entrance not located at a proposed entrance to the site? 9. If a stockpile area is necessary, show it on the plans with perimeter controls. 10. The sequence of construction on Sheet C112 does not mention Phase 1 or 2. 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. 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. Engineering Review Comments Page 3 of 3 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; hgp://www.albemarle.or /g deptforms.asp?department=cdengnoo