2014-02-25 CONCOM-min - Laserfiche WebLink

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7:23 pm Hearing – 255 Cedar Street, Pine Meadows Golf Course, NOI DEP# 201-928, BL 888 Applicant: Town of Lexington Recreation Department Dredging of sediment within Kiln Brook and sediment disposal on site Present for the Applicant: Karen Simmons, Lexington Recreation Director, Megan Buczynski, Activitas Inc., and Alyssa Jacobs, Epsilon Associates, Inc. Ms. Buczynski explained the proposed project to mechanically dredge the pond at this location. Ms. Jacobs gave a description of the resource areas, buffer zone, and isolated wetland in the area. The area to be dredged within Kiln Brook is approximately 4,500 square feet. Ms. Jacobs proposed the turbidity curtain to be anchored by concrete block or staking in the ground up-gradient. Comments from the Commission as follows: Mr. Langseth asked if the sediment trap would remain. Mr. Langseth suggested that a supplemental plan be submitted on how to remove materials and the future use of the stockpiling. Ms. Buczynski stated that the work will potentially start th on March 12. Ms. Jacobs explained that the turbidity curtain will be installed by hand and one tree is proposed to be removed. Motion made and seconded to close the hearing, 7-0 in favor. 7:35 pm Hearing – Concord Avenue between Spring & Waltham Street, NOI DEP# 201-930, BL 890 Applicant: Town of Lexington Department of Public Works Construction of a new sidewalk along the southern side of Concord Avenue between Spring and Waltham Street, replacement of the culvert under Concord Avenue at Hardy’s Pond Brook, installation of a driveway for the Town to access the existing pump station, milling and repaving of Concord Avenue in the project area, and demarcation of a bicycle lane Present for the Applicant: Bridget Mitchell, Woodard & Curran, Inc., Janet Moonan, Woodard & Curran, Inc., Ron Derosa, Woodard & Curran, Inc., Dave Pinsonneault, Town of Lexington Manager of Operations, and Dave Cannon, Town Engineer Ms. Mitchell gave an explanation and description of the work proposed. She discussed the temporary and permanent disturbance to occur in each area. A waiver is being requested in specific areas in which the disturbance is closer than 25’ away from the wetlands. The culvert replacement will consist of a box culvert to mimic the existing conditions. Ms. Moonan gave an overview of mitigation for the Bordering Vegetated Wetland impacted areas. This project proposes to remove invasive species and plant native species. Comments from the Commission as follows: Mr. Langseth asked where the excavated soil would be stockpiled. Mr. Langseth commented on the need for submittal of invasive removal details and replication details. The Commission discussed mitigation. Mr. Bitsko suggested a more rigorous planting plan for the disturbed areas. John Sellars of 430 Concord Avenue commented on the stream failing to be up kept in the past 50 years as well as flooding in the area of neighbors houses.