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HomeMy WebLinkAbout2000-03-28-CONCOM-min.pdf MINUTES - LEXINGTON CONSERVATION COMMISSION MARCH 28, 2000 Commissioners present: Lisa Baci, Duke Bitsko, Bebe Fallick (9:05), Angela Frick, Philip Hamilton, and Richard Wolk. Absent: Joyce Miller. Others present: Marilyn Nordby and Linda Gaudet. Vice Chairman Hamilton opened the meeting at 7:50 p.m. in Room G-15, Town Office Building. 34 Middlebv Road Discussion—DET #99-23 Attorney John Farrington represented Todd Cataldo, the builder, who was unable to be present. Mr. Farrington explained they want to revise the site plan to install a pool with pool deck in the yard behind the house. The purchaser, who is moving from France, could not attend the meeting because he is not in the country Mr. Farrington believes the work, as related to 310 CMR 10.58.(6) Wetlands Act, Exempt Minor Activity for the conversion of lawn area to pools, can be considered a minor field change. Within the scope of this exemption, it is more that 50 feet from a bordering vegetated wetland and although the house is new, there was a house existing on the lot prior to 8/7/96. After discussion,the Commission also determined that the nature of the existing buffer itself provided certain protections. There is a 10-foot drop between the building platform and the wetlands at the back of the property, and there is a buffer of natural vegetation at the top of the slope. The Determination issued for the project requires that a 40- foot natural shrub buffer be maintained between the lawn and the top of the slope. The patio for the pool is then 10 feet from this required buffer. The Commission decided that the following conditions should be added to the Determination: a permanent buffer of shrubs and groundcover should be installed at the front edge of the buffer to give an attractive border to the lawn area, and pool water should not be discharged into the buffer zone. It was moved, seconded and voted to approve the construction of a pool with additional landscaping as discussed above as a field change. HEARING. HAYDEN RECREATION CENTRE. 24 Lincoln Street, Drainage for expansion of skating facility and narkine - (BL-4231 8:10 p.m. Present: Ingeborg Hegemann, Andrea Surabian, BSC, Gary Larson, landscape architect, Don Mahoney, applicant. Others are listed in the file. This project is for the proposed expansion of the Hayden skating building and the redesign of the small existing parking area. The project is filed under the By-Law only for compliance with the By-Law Rule Section 5, Performance Standards, (2) Increase in Runoff,because the drainage from the area flows into the Upper Vine Brook via a Town drain line. It was noted that this is the same drainage system that serves the High School. The Commission has recently approved extensive work on that system under the High School improvement project. The project is described in the NOI dated 3/7/00. MINUTES LEXINGTON CONSERVATION COMMISSION 3/28/00 PAGE 2 Gary Larson presented the plans and reviewed the existing and proposed conditions. The building expansion is needed to bring the ice rink up to standard to facilitate the skaters competitive opportunities. The drainage plan proposed provides mitigation for the runoff from the additional impervious surface and treatment for this runoff which is not presently taking place. Mr Larson reviewed the design changes to the building and the parking area which includes improved landscaped area. Andrea Surabian reviewed the drainage component of the project. There will be 7,000 s.f. of new impervious surface (3,000 s.f. for the building and 4,000 s.f. for the parking lot reconfiguration). A closed stormwater drainage system will be installed to supplement the existing system. There will be a new connection point to the existing municipal drainage system in Lincoln Street. A proposed recharge basin will mitigate and actually cause a decrease to the rate of runoff from the increased impervious surface. Oil and water separators will be installed in all but two of the catch basins which are located in the area where the ice is dumped. There will be no increase to the pre or post volume in runoff. Mr. Hamilton read the Engineer's memo noting that all their concerns have been satisfactorily addressed. In response to questions from the Commission requesting detail of the route and destination of the runoff from the site, Ms. Surabian displayed a map of the town drainage system. It showed the lines that carried the runoff from the site to Vine Brook. It also illustrated the connection of the High School drainage system to this network. In response to other questions, the Hayden management will maintain the drainage system and be responsible for cleaning the catch basins and oil and water separators. A proposed maintenance plan is in the NOI. The Commission is concerned that oil and water separators are not proposed for the catch basin located in the area where the snow from the rink is stored. Ms. Hegemann commented that the impervious surface has not changed in this area,but agreed that they should be reconstructed and gas and oil hoods installed. Possibly one of them could be eliminated. In response to a question from Kenneth Reich, 23 Lincoln Street, abutter and Town Meeting member, Mr. Larson said that there will be substantially more vegetation installed as a result of the project and he again reviewed the landscape plan. He confirmed that with the increase in impervious surface, there would be a minimal reduction in the overall runoff off the site and the runoff will now be treated which was not done before. He reviewed the function of the infiltrator system proposed for installation as part of the drainage plan and pointed out on the plan where the runoff would be treated before it reaches this facility About 70 percent of the runoff will go into the infiltrator system where it will be stored to slowly recharge into the ground. There will be no overflow onto the site. Ms. Surabian again reviewed the drainage mitigation plan at the site by tracing the drainage flow for each catchment area to its respective catch basin. Tom Coffman, 31 Lincoln Street, asked what the plans were for the possible expansion of the upper portion of the Hayden site and if this proposal was just a segmented piece of a much larger project. Mr Mahoney responded that there are no plans to expand or renovate the upper building right now It was moved, seconded and voted to close the hearing. MINUTES - LEXINGTON CONSERVATION COMMISSION 3/28/00 PAGE 3 CONT'D DET #00-4 35 Haves Lane. P Johnson. drainaee/single-family house and street widening Mr. Hamilton read a letter from the representative, Larson Associates, agreeing to a continuance of the hearing to April 11, 2000. It was moved, seconded and voted to continue the hearing to April 11 CONT'D HEARING. Old Smith Farm. 160/170 Wood Street. Wood St. R.T (201-457) Mr Hamilton read a letter from James Gaklis, the applicant, asking for a continuance of the hearing to April 11, 2000, at 8 p.m. It was moved, seconded and voted to continue the hearing to April 11 at 8 p.m. MINUTES - It was moved, seconded and unanimously voted to approve the minutes of March 14, 2000, as submitted. CERTIFICATE OF COMPLIANCE. Snrinedale Estates - 201-5 Ms. Nordby explained that a Certificate of Compliance was never issued for a subdivision built in 1973 on Springdale Road (off Bates Road). The issuance of a Certificate of Compliance is in order to clear the title for all the lots. It was moved, seconded and unanimously voted to issue the Certificate of Compliance for Springdale Estates. CONT'D HEARING. Winnina Farm. Winnina Farm Trust. 4-lot subdivision (201-441-445) Mr. Hamilton read the letter from Winning Farm Trust requesting the continuance of the hearing to April 25, 2000. It was moved, seconded and voted to continue the hearing to April 25, 2000. (Bebe Fallick arrived at 9.05 p.m.) ORDER OF CONDITIONS. MFN. Bikeway Cable Installation - 201-464 The Commission reviewed the draft letter from the Engineering Department to the management company for the bikeway, Transit Realty Associates, and noted the conditions in the letter relevant to the Order It was moved, seconded and unanimously voted to approve the Order of Conditions as amended for the fiber optics cable installation on the bikeway REPORTS Greetings - The Commission unanimously agreed to recognize Chairman Miller's birthday and in her absence, extend belated birthday wishes to her. MINUTES LEXINGTON CONSERVATION COMMISSION 3/28/00 PAGE 4 Community Preservation Act - Mrs. Frick reported that on behalf of the Commission, she is sending a letter to the Secretary of EOEA, Robert Durand, to urge legislative action for the implementation of the Community Preservation Act. Copies were sent to Conference Committee Members and Director of the Community Preservation Coalition along with copies to Rep. Jay Kaufman, and Senators Fargo and Haven. This Act, if passed and adopted by the Town, will enable Lexington to raise money needed to save open space and provide housing that residents can afford. Fletcher Avenue Land Use Committee—Report to Town Meeting - Ms. Fallick reported that the report and Proposed Memorandum of Understanding will be distributed to Town Meeting for their approval. Stream Channel Cleaning in Mass. US Army Corns of Engineers - Ms. Fallick(for Gary Fallick, Associate Member/Reed's Brook) and Mr. Bitsko asked for copies of this report. Engineering Review of Proiects - Ms. Nordby reported that the project manager/engineer for the school projects has resigned. The Town Manager has assigned Asst. Town Engineer, Dan Vallee, to this position until a replacement is found. Since Dan is the engineer who reviews all the projects that come before the Commission, the Commission should be aware that there may be a need to use outside consultants for the review process if Engineering is unable to do the review H.S. Proiect - Ms. Nordby reported that she will be attending a pre-construction meeting with the contractor and the Permanent Building Committee tomorrow They will be reviewing the Order of Conditions. Ms. Baci is concerned about the timing sequence for the project and mitigation for the additions at the High School if they are completed before the relevant drainage system is installed. A plan must be submitted addressing all the outstanding concerns including details for sequencing of the project, drainage details, and mitigation for roof runoff. Executive Session - Commissioners Baci, Bitsko, Fallick, Frick, Hamilton and Wolk voted to go into Executive Session for the purpose of approving minutes, land acquisition and possible litigation. The meeting resumed in open session. CERTIFICATE OF COMPLIANCE, 4 Brandon Street - 201-429 It was moved, seconded and unanimously voted to issue the Certificate of Compliance for 4 Brandon Street. The meeting adjourned at 9:55 p.m. Respectfully submitted, MINUTES LEXINGTON CONSERVATION COMMISSION 3/28/00 PAGE 5 Linda A. Gaudet Secretary {