HomeMy WebLinkAboutWPO201900038 Correspondence 2020-09-28® COLLINS ENGINEERING
September 16, 2020
Matt Wentland
Department of Community Development
401 McIntire Road
Charlottesville, VA 22902
RE: Martha Jefferson Hospital Parking Lot Expansion WPO-2019-00038
20o GARRETT ST, SUITE K CHARLOTTESVILLE VA 22902
��434.293.3719 PH 434.293.2813 FX
www.coll ns-eng ineeri ng.com
Thank you for your comments dated September 12, 2019 on the above referenced project.
Stormwater Pollution Prevention Plan:
1. —
2. —
3. The ESC and SWM will be included in the SWPPP once no further changes are required.
Pollution Prevention Plan:
1. The PPP will be updated to show the new pond area, once the VSMP is approved. It will be added into the SWPP manual.
Stormwater Management Plan
1. —
2. —
3. The nutrient credit purchase is in process.
4. The SWM facility easement is shown and labeled on sheet 6 and will be included in the plat. The easement and pond have
been slightly shifted to avoid the existing utility easement. The pond was rerouted for this slight area change. This
modification only changed the 10-year storm routed value through the pond from 4.03 cfs to 4.13 cfs: the previous 1 and 2
year routed values were unchanged. The updated routing results are provided on sheet 6, and an updated SW M
calculations packet is provided for completeness with this revision highlighted.
5. A stormwater maintenance agreement has been submitted to Ana Kilmer.
Erosion and Sediment Control Plan
Should you have any questions, please feel free to contact me at scott@collins-engineering.com.
Sincerely,
Scott Collins