HomeMy WebLinkAboutSoil Scientist Cmts 051922
May 19, 2022 Ms. Liz Burdick Town Planner
310 Norwich-New London Tpk.
Uncasville, CT 06382
RE: Gay Hill Rd Re-Subdivision Wetland Application CLA-7064M
Dear Liz: We have examined the site re-subdivision plans submitted for Cornerstone Ventures LLC Resubdivision at Gay Hill Rd (Monahan Drive). These plans are based
work done in 2009 and prior. We have the following comments:
1. Current site conditions are not shown on the plans. The existing drainage, roadway, and storm water treatment systems should be updated and depicted. This could affect the drainage report and storm water management design and require revisions. Any other site changes should be added to provide an up to
date depiction of existing conditions. 2. The storm water treatment system needs to demonstrate compliance with the 2004 Manual and the MS4 program. No calculations showing water quality
volumes were found in the drainage report.
3. Greater detail regarding erosion and sediment control is needed. Show temporary measures for roadway construction on a separate plan and document how and when they will be converted to permanent water quality features.
Given the nature and extent of the additional data required, CLA recommends that the applicant meet with staff to further define the information needed to complete the
application.
Very truly yours,
Robert C. Russo CSS
CLA Engineers, Inc.
Civil Structural Survey
317 MAIN STREET NORWICH, CT 06360 (860) 886-1966 (860) 886-9165 FAX