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HomeMy WebLinkAbout2000-09-05-CONCOM-min.pdf MINUTES - LEXINGTON CONSERVATION COMMISSION SEPTEMBER 5, 2000 Commissioners present: Lisa Baci, Duke Bitsko, Angela Frick, Philip Hamilton, Joyce Miller and Richard Wolk. Absent: Bebe Fallick. Others present: Marilyn Nordby and Linda Gaudet. Chairman Miller called the meeting to order at 7:50 p.m. in Room G-15, Town Office Building. Cont'd. Hearin¢ for Amendment, Level (3) Communications, fiber optic cable - 201-468 Present: Peter Potvin, Kiewit Construction, and Michael Ball, ENSR. PB Network Services, on behalf of Level 3 Communications, has requested an Amendment to the Order of Conditions for installing fiber optic cable within the Rte. 128/I-95 right of way The Order authorized the cable installation within the highway median. The Mass. Highway Department has directed Level 3 to relocate the cable in the 10-foot wide paved southbound shoulder of the highway Project Manager Peter Potvin reviewed the project and showed a sample of the cable interduct to be used. The trench will be dug in the middle of the shoulder area. Erosion controls will include the installation of silt fence along BVW and silt sacks in catch basins, and hay bales surrounding catch basins; this will comply with the Cambridge Water Department's request for extra protection in wetland resource areas near the access area on Rte. 2. The trench will be 60 inches deep and 18 inches wide. All trenches will be closed and the area paved at the end of each workday The Cambridge Water Department will attend the pre-construction meeting. It was moved, seconded and voted to close the hearing and approve the Amendment to the Order of Conditions for the project. 25 Vinebrook Road- Field Chance - 201-413 Mr. Tropeano, owner of 25 Vine Brook Road, requested permission to remove a blue spruce tree adjacent to his house. Because the tree is a potential danger to the house, the Commission voted to approve as a field change the request to remove the tree. HEARING FOR AMENDMENT 87 Hancock St. Hancock Farms R.T Site revisions 201-446 Present: Gerard Maloney, applicant; Dylan James, Meridian Engineering. Mr. James presented the plan for modifications to the proposed site development on Lot 1 The owner plans to renovate the existing structure, eliminate the previously proposed addition and the impervious driveway, and construct a basketball court area. The proposed work will be contained within the limit-of-work line previously established. An infiltration facility is proposed to collect all stormwater runoff from the dwelling and court area. A gravel driveway is MINUTES LEXINGTON CONSERVATION COMMISSION 9/5/00 PAGE 2 proposed. It was concluded that if a future owner paved the driveway, there would still be a decrease in impervious areas on site and the drainage could handle the change. Mrs. Miller read the Engineering report which states he concurs with the drainage design and calculations submitted. Commissioners noted that the limit-of-work line, which is 50 feet from the wetland line,will not be moved. There is a Conservation Restriction area on the lot. The closest point for the basket ball court to the wetlands is 87 feet. It was noted that the topography drops off to the rear which will limit the use of the yard. It was moved, seconded and unanimously voted to close the hearing and approve the amendment to the Order of Conditions with a condition that a landscaping plan must be submitted for approval showing a vegetated or structural amenity that will provide a barrier between the activity area at the back of the house and the buffer between that area and the wetlands. CONT'D HEARING, Dunham St. Lot 1 R. DuPont - 201-474 Mrs. Miller read a letter from Roger DuPont requesting a continuance of the hearing to October 3, 2000. It was moved, seconded and voted to continue the hearing to October 3, 2000. CONT'D HEARING, 128 Maple Street, J Eliades, single-family house -201-475 Present: Jack Eliades, applicant; Susan Eliades; and Mary Trudeau, representative. Ms. Trudeau reviewed the revised plan showing the house, the wetland line, and the test pit location. The hay bale line will be extended. Ms. Trudeau submitted a letter from a certified arborist which stated that digging for the foundation would damage the root system and severely weaken the maple tree near the house making it more susceptible to storm damage and become a serious hazard in the future. The outstanding engineering issues have been addressed by the applicant. It was moved, seconded and voted to close the hearing. They agreed to submit a landscape plan before the Order of Conditions is approved. Discussion-Diamond/Clarke Middle Schools - Stormwater Treatment Equipment Mr. Nicolas Reitzel of CDS Technologies, Inc. discussed with the Commission the applicability of using CDS Technologies equipment for stormwater treatment at the Diamond and Clarke Middle Schools. He said that he would like approval from the Commission to allow his equipment to be substituted for the Stormceptor system initially approved on the plan specifications. Judith Nitsch Engineering is evaluating the critical requirements of the equipment, and some further technical issues must be addressed. He submitted some supplemental material about their equipment. The Commission decided that approval will be conditioned on a positive technical review and response from the project engineer as well as the Town engineer. Mr. Reitzel said a full package for review will be submitted shortly MINUTES LEXINGTON CONSERVATION COMMISSION 9/5/00 PAGE 3 Certificate of Compliance - LCA Tennis Court - 201-421 It was moved, seconded and voted to issue a Certificate of Compliance for the tennis court project at Lexington Christian Academy Lexineton Christian Academy Athletic Fields - 201-288 Ms.Nordby reported that David Langseth has completed his review of the water quality monitoring data and has concluded that additional water testing should be continued and be conducted at least twice a year. Mr. Langseth's formal response will be sent to LCA. Reed's Brook Preamble Discussion There was discussion by the Commission and Gary Fallick about statements to be included in the Preamble. The water testing parameters were discussed. Site Visits - Pine Meadows for the irrigation project will be at 10 a.m. on Saturday; 32 Lincoln Street will follow Hieh School Proiect - 201-438 Ms. Baci reported that at this time there is no drainage mitigation and the curbs have not been constructed as required in the Order of Conditions. Ms. Nordby reported that Dan Vallee will be submitting information for review shortly The meeting adjourned at 9:50 p.m. Respectfully submitted, Linda A. Gaudet Secretary