HomeMy WebLinkAboutWPO201700079 Correspondence WPO VSMP 2018-01-19waterstreetstudio
January 19, 2018
Mr. Bobby Jocz
Albemarle County Community Development
401 McIntire Road
Charlottesville, VA 22902
RE: WPO201700079-Wilson Residence VSMP Permit
Dear Bobby:
Pursuant to your letter dated January 4, 2018, this memorandum is intended to serve as our
written response to your comments pertaining to the VSMP application for the above
referenced property. Our responses in order and concur with the numbering system, which was
employed in your comments. We have also attached copies of the revised plans.
A. Stormwater Pollution Prevention Plan
1. Critical slope areas present on site have been added to the plans.
2. Callout arrows on profile corrected.
B. Pollution Prevention Plan
1. No action required.
C. Stormwater Management Plan
1. VRRM Areas and numbers revised to address this comment.
2. SWM Forest and Open Space Easement labels corrected. Easement plat is forthcoming.
3. Culverts 5 and 6 convey runoff to a small existing shallow farm pond on the property just
below the culvert outlets. The culverts are located in existing drainage ways for
watersheds that are primarily off-site and are unaffected by development of the gravel
drive. The existing pond and spillway adequately "manage" the peak runoff for these
two watersheds currently, serving as a de-facto level spreader, discharging to the SWM
Forest and Open Space area.
D. Erosion and Sediment Control Plan
1. Tree Protection added to the list of E&SC Measures.
2. Sediment Trap rip rap outlet locations have been added to the plans.
3. Clean water diversions have been identified.
4. The Diversion Dike layout has been revised.
5. The Diversion Dike layout has been revised and the sediment trap layouts and
calculations adjusted slightly.
6. The Silt Fence layout revised per comment.
7. The Outlet Protection sizing charts are attached and the dimension of each is indicated
on the plan. Also the detail was revised.
We trust that the attached plans and response letter will adequately address your comments.
Please call should you have any questions or comments.
Sincerely ours,
Alan Franklin, PE
111 3rd
street se 434.295.8177 t
waterstreet
February 20, 2018
Mr. Bobby Jocz
Albemarle County Community Development
401 McIntire Road
Charlottesville, VA 22902
RE: WPO201700079-Wilson Residence VSMP Permit
Dear Bobby:
Pursuant to your letter dated February 8, 2018, this memorandum is intended to serve as our
written response to your comments pertaining to the VSMP application for the above
referenced property. Our responses are in order and concur with the numbering system,which
was employed in your comments. We have also attached copies of the revised plans.
A. Stormwater Pollution Prevention Plan
Critical slope areas printing corrected.
B. Pollution Prevention Plan
No action required.
C. Stormwater Management Plan
Additional Rev 2 Comments:
Rational Method worksheet for Culvert 5 corrected. No plan change required. Worksheet
headers corrected and calculations have been sealed.
D. Erosion and Sediment Control Plan
Additional Rev 2 Comments:
Sediment Trap 1 top of berm elevation corrected to match the plan and calculations.
We trust that the attached plans and response letter will adequately address your comments.
Please call should you have any questions or comments.
Sin ely yours,
Alan Franklin, PE
111
3rd
street se 434.295.8177 t