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MINUTES LEXINGTON CONSERVATION COMMISSION 8/8/00 PAGE 2 51 feet from the wetland. A proposed leaching trench is proposed which will reduce the rate of runoff to existing conditions. (Mr. Bitsko arrived at 8:15 ) Commissioners noted that the house was razed before Mr. Seaver filed with the Commission. He said he had the necessary permit to demolish the house and he didn't think it was an issue. It was a slab on grade house. The hay bales and silt fence have been installed. There is an 8 to 9 foot drop to the Morton's lot where runoff drains to the Morton's yard. Soil testing was done. The Commission usually requires a buffer of at least 50 feet from the wetlands. The proposed structure is approximately 60 feet from the forested wetland. There is thick vegetation there now and the new owner should be discouraged from doing any clearing. The Commission has concerns about the proximity to the wetlands and the size of the back yard. The new owner should be made aware that the yard cannot be extended. It was decided that a landscaping plan must be submitted for approval showing a barrier such as permanent shrubbery, fence or plantings to provide an undisturbed buffer of at least 20-25 feet from the wetlands. Mrs. Miller read the Engineering report stating that the stormwater system was designed using acceptable engineering practice and that he concurs with the methods and conclusions of the applicant's engineer. Abutter Sabra Morton is concerned about protecting the wetlands which she believes is a quaking bog. She said there is vegetation along the property line and the red maple trees are a terrific sponge. She said that a tree was removed last week which served as a visual barrier and hopes that no more will be removed. It was moved, seconded and voted to close the hearing. Hieh School Plan Field Change Present: Pip Lewis, Project Manager, Gerry Blumenthal, Dan Vallee, Asst. Town Engineer, and Peter Kelley, Permanent Building Committee. nannal-leegave-a-pr-esentation-regarding-the-high-school-drainage-plan-to-date.Hesaid-tha+ temporary changes are needed for a 2-year period. The parking lot was paved last weekend. There are two existing catch basins and hay bales are in place. They propose to install an 8-inch orifice on the outflow of an existing pipe within two weeks. Calculations have been submitted for this change. It was moved, seconded and voted to approve the temporary high school drainage plan as a field change subject to the approval of the Town Engineer. 8:45 P.M. CONT'D HEARING. WINNING FARM. 4-lot subdivision/roadwav - 201-441 to 445 Present: Phyllis Etsell and Gary Ruping, Winning Farm Trust; Douglas Miller, Commonwealth Engineering; Gary Sanford, Sanford Ecological; Eric Wodlinger, Choate Hall & Stewart; Ingeborg Hegemann, Commission consultant. Others are listed in the file.