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MINUTES LEXINGTON CONSERVATION COMMISSION 4/25/00 PAGE 2 Conservation Commission should be prepared by T&M Engineering, the original subdivision engineer. Commissioners noted that the deed restriction/covenant from Pheasant Brook is not under the jurisdiction of the Commission. Mr. Carter stated that the roof overhang, which was not shown on the plan,would increase the impervious area. He is concerned that there will be additional runoff directed toward his lot. In response to these concerns, Mr. Russell said there are no proposed grading changes that would direct runoff towards Mr. Carter's property,but there are no runoff controls because there was a reduction in the impervious surface. Even with the minor driveway widening, there is a net loss in impervious surface. Mr. Russell suggested that the Commission could require that a foot of crushed stone be placed around the perimeter of the home to control the runoff from the roof. The owner could not answer the question of where snow would be plowed because last winter, the first they have lived in the house, plowing was not required. The Commission reviewed the Conservation Restriction plan showing the boundaries of the restriction. Mr. Hamilton suggested that the applicant continue the hearing to revise the plan to show the roof overhang and a proposal to mitigate the runoff from the roof This will permit the applicant the flexibility to propose a drywell or crushed stone, or another viable method to control the stormwater. With the applicant's permission, it was moved, seconded and voted to continue the hearing to May 9 at 9 p.m. CONT'D DET #00-4. 35 Haves Lane. P Johnson. Drainaee/sinele-familv house and street widening 8.20 pm A memo was read stating that the applicant has agreed to a continuance of the public hearing to May 23, 2000. It was moved, seconded and voted to continue the hearing to May 23, 2000. CONT'D HEARING. Winnine Farm. Winnine Farm Trust. 4-lot subdivision 8.25 pm 201-441-445 _A-letter-was-read-from-Winning-Farm-Trust-requesting-that-the-hearing-be-continued-to-May-23 2000. It was moved, seconded and voted to continue the hearing to May 23, 2000. 8.30 pm HEARING. 6 Lake Street. Herrin¢ Construction. Demolish and reconstruct sinele-familv house Present: Dylan James,Meridian Engineering; Gregg Moore, LEC Environmental Consultants; Bill Herring, Herring Construction. Others are listed in the file. Mr. James presented the plans for the demolition of an existing dwelling and the construction of a new single-family house at 6 Lake Street. The wetlands have been delineated on the property with the edge generally at the bottom of a stone wall. The net increase in impervious area with the new plan is 650 s.f. A leaching facility designed to infiltrate 1000 square feet of impervious area which is more mitigation than required.