HomeMy WebLinkAboutWPO202000028 Correspondence 2022-11-04 (2)SHIMP ENGINEERING, P.C.
Design Focused Engineering
November 3, 2022
David James
County of Albemarle
Department of Community Development
401 McIntire Road, North Wing
Charlottesville, Virginia 22902
RE: Response Letter #1 for WPO202200028 Regents school of Charlottesville (Amendment I
Dear David,
Thank you for your review the VSMP Plan Amendment for Regents school of Charlottesville [Amendment
1]. This letter contains responses to County comments dated September 15, 2021. Our responses are as
follows:
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. Update SWPPP with the approved plans.
SWPPP Packet has been updated.
B. Pollution Prevention Plan (PPP)
The PPP content requirements can be found in County Code section 17-404
1. Update PPP.
Pollution prevention plan Has been updated and provided in the SWPPP Packet.
C. Stormwater Management Plan (SWMP)
VSMP Regulation 9VAC25-870-108 requires the VSMP authority to approve or disapprove a SWMP.
This plan is denied, 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) Purchase of additional nutrient credits required prior to amendment approval.
Nutrient availability letter is provided with this submittal.
2) UuuLy LrU55111go Ldn Ue snuwn in uie SLUnn p1Ui11(2S. i iiey must be shown in the sanitary
nrnfilaa
Utility Crossing has been shown in the Storm and Sanitary Profiles.
3) About 0.06ac additional F/OS is being added according to VRRM and must be protected
to count towards Water Quality (TP) nutrient load reduction. This may require
easement deed & plat revision & recording.
a. Alternatively, you can purchase additional credits from the bank provider. Revise
voRnn
Acknowledged, Additional 0.06 credits from the bank have been added to the total credits.
Total credits required: 0.80 Lbs/yr.
4) rIUVIUe feVISUU UldlfldrC UCSIVII, WUIKUIleel LduIe5. 311UUL L13 Ufl UIL
Worksheet tables has been updated and they are showing on Sheet C12.
SHIMP ENGINEERING, P.C.
Design Focused Engineering
5
Worksheets Ditch Table Ld268 has been provided on Sheet C14 and Drainage maps are
showing on Sheet C38.
6) Provide revised SSC design for A0. Sheet C15 on the approved plan.
Worksheet table Ld268 has been showing on Sheet C14
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
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) Please clarify what E&SC phase sheets are being revised per approved plan. Show phase
2&3.
There was saw minor revision to each ES&C plan sheet, this is shown in red. For erosion
control, this involves increase in limits of disturbance, and the movement of drainage
diversion/silt fence. No Revision to Sediment Traps.
If you have any questions or concerns, please feel free to email me atodria@shimp-engineering.com or you
can contact Justin Shimp by phone at (434) 227-5140 or at justin@shimp-engineering.com to discuss in
further detail.
Best Regards,
Odria Barefoot -Diaz
Shimp Engineering, P.C.