HomeMy WebLinkAboutSS Comments 10-17-2024Page 1 of 2
October 17, 2024
CLA Engineers, Inc. | 317 Main Street, Norwich CT 06360 | 860.886.1966 | www.claengineers.com
October 17, 2024
Stacy Radford
Zoning & Wetland Officer – Dept. of Land Use & Development
Town of Montville
310 Norwich-New London Tpke., Uncasville, CT 06382
Via Email: sradford@montville-ct.org
RE: Inland Wetland Application 24 IWC 9
2268-2284 Route 32 – Horizon View
CLA-7873C
Dear Stacy:
CLA Engineers, Inc. (CLA) has received the following application materials for the above
referenced project:
1. Inland Wetlands and Watercourses Application dated 9/20/24
2. Cover Letter dated 9/27/24
3. Wetland Impact Letter prepared by Lucas Environmental dated 9/19/24
4. Wetland Summary Letter prepared by Lucas Environmental dated 8/23/24
5. Site Plans (parts 1-10) prepared by RJO’Connell & Associates dated 9/25/24
6. Complete Stormwater Report (parts 1-4) prepared by RJOC dated 9/25/24
CLA staff (Kyle Haubert & Molly Ahern) performed a site walk on 10/14/24, and have conducted
a review of the application documents. The basis of review was the Town Regulations, the 2024
CTDEEP Connecticut Stormwater Quality Manual (Stormwater Quality Manual), and the 2024
CTDEEP Connecticut Guidelines for Soil Erosion & Sediment Control (E&S Manual). We offer
the following comments on the materials:
1. Final plans should be signed by a representative of Lucas Environmental.
2. During the site walk CLA noted the presence of wetland vegetation (Phragmites australis)
south of the inland wetland boundary on the site plans. The Soil Scientist should address
the presence of this vegetation and confirm the inland wetland boundary.
3. Page 5 of the Wetland Impact Assessment prepared by Lucas Environmental identifies
groundwater recharge as a principal function of the wetland, but later notes that the wetland
“does not appear to significantly contribute to surface and underground water”. These
statements appear to conflict with each other; Please explain and/or provide more detailed
information.
4. An alternatives analysis should be provided describing alternative options to achieve
project goals and explain why these alternatives were not selected.
CLA Engineers, Inc.
Civil Structural Survey
317 MAIN STREET NORWICH, CT 06360 (860) 886-1966 (860) 886-9165 FAX
Page 2 of 2
October 17, 2024
CLA Engineers, Inc. | 317 Main Street, Norwich CT 06360 | 860.886.1966 | www.claengineers.com
5. Soil profile logs or data should be provided for all test pits or borings performed on the
site. There appear to be additional test pits or boring located on the site plan than included
in the Whitestone records provided.
6. A detail for the catch basin/sediment trap inlet structure should be provided.
7. The detention basin and infiltration system designs utilize an existing permeability rate
based on soil gradations. CLA would recommend using half this rate for design purposes
in accordance with the Stormwater Quality Manual.
Thank you for the opportunity to provide this review. Please feel free to call us at our office or
email khaubert@claengineers.com with any questions.
Very truly yours,
CLA Engineers, Inc.
Kyle Haubert, P.E.