2007-04-24 CONCOM-min - Laserfiche WebLink

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MINUTES -LEXINGTON CONSERVATION COMMISSION April 24, 2007 Commissioners present: Stewart Kennedy, Angela Frick, Philip Hamilton, and David Langseth Absent: Richard Wolk, Duke Bitsko, and Joyce Miller Others present: Karen Mullins, Administrator, Adam Bossi, Administrative Assistant, and Louise Vinci, Department Clerk Phil Hamilton, Vice Chair, opened the meeting at 7:15 p.m. in Room G -15, Town Office Building. 7:15 p.m. Continued Meeting: RDA, 286 Lincoln Street, Arlex Oil Attorney Ed Grant gave a brief update of what had occurred since last meeting. Arlex Owner, David Eagle and Chris Tomoula, MHF Designs Engineer met with Karen Mullins last week and submitted Engineer's letter, licensed site professional letter and revised plans. Chris Tomoula outlined changes to drainage system, which included adding trench drain piped to stormceptor and installing high point along driving access. Commissions comments followed: David Langseth asked about the diameter size of the trench drain. Mr. Langseth also asked about contamination test results. Mr. Tomoula responded by saying that the test showed contamination above standards only in the area where the old pumps were contained, and that the amount of contamination in that area had lessened through their past and present remediation efforts. Stew Kennedy asked for follow up on contamination tests in the future. Mr. Corey, Licensed Site Professional hired by Arlex, responded that testing would be performed under the on -going DEP review. Gloria McMeninmen of 264 Lincoln Street asked about canopy runoff and where it goes. Jeff Malloy Epsilon's Wetlands Consultant replied they would use a gutter type system and runoff would travel into a catch basin. Mark McGuire of 249 Lincoln Street expressed concerns about the increased potential of off -site contamination caused by the amount of traffic that would come from an increase in business due to the fact that where there was once one business, there would now be three businesses. Mr. Tomoula responded that the drainage system is designed to treat storm water runoff to remove TSS and petroleum hydrocarbons in accordance with standards. Mr. Maguire asked how much contamination is acceptable? Phil Hamilton answered; that the Conservation Commission had to act within their regulations and Arlex had met stormwater management standards. Angela Frick wanted to be ensured that gasoline runoff would not go into Vine Brook. Mr. Tomoula went over the proposed drainage system again for her. The Commission asked Ms. Mullins to incorporate the following conditions into the Determination of Applicability: