2007-06-26 CONCOM-min - Laserfiche WebLink

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MINUTES —LEXINGTON CONSERVATION COMMMISSION June 26, 2007 Commissioners present: Joyce Miller, Dave Langseth, Duke Bitsko, Stew Kennedy, Dick Wolk, Angela Frick Absent: Phil Hamilton Others present: Karen Mullins, Administrator, Adam Bossi, Assistant Administrator, and Louise Vinci, Department Clerk Joyce Miller, Chair, opened the meeting at 7:35p.m. in room G -15, Town Office Building. 7:35 p.m. Meeting: RDA, Pleasant Street, Present for the applicant /owners: Brett Mason, Oxbow Associates Mr. Mason presented a plan to reinstall about 1,000 ft. of 4 -inch gas conduit along the southern side of Pleasant Street. David Langseth had concerns that sediment could erode into catch basins. Mr. Mason responded by stating that no soil would be stock piled overnight. Administrator Mullins suggested erosion controls in catch basins near area of work, and demarcation of staging areas during pre - construction meeting. Motion made and seconded for negative determination with standard conditions and conditions as identified during the meeting, 6 -0 in favor. 7:45 p.m. Meeting: RDA, Grandview Avenue, Present for the applicant /owner: Mary Trudeau, Wetland Consultant, David Remero, Commonwealth Engineering, David Burns, applicant /owner Ms. Trudeau presented a plan for the construction of three single- family dwellings and connection of the drainage to municipal storm water drainage system. Comments from commissioners: David Langseth asked if the new street catch basins would drain into infiltrator system. When Ms. Trudeau said that they did, Mr. Langseth commented that the plan needed details with elevations showing how the overflow from the new infiltrator system connected to the existing municipal system. Condition to include in permit: revise and submit plan with details of overflow connections. Duke Bitsko asked if all the infiltrator systems would have inspection and maintenance ports. Conditions to include in permit: 1. Provide at least two inspection ports with risers and covers to grade in each system and 2. Maintain annual inspection and maintenance logs and submit evidence of maintenance to the Conservation Office on an annual basis. Stew Kennedy asked about grading to prevent runoff from impervious surfaces flowing to adjacent properties. David Burns responded by stating that the special permit, Page 1 of 5