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Home My WebLink About2020-01-06-CONCOM-min 1 JS MORIVI" 0 Di18k3 c o s PUBLIC MEETING MINUTES A,R,Lpr„ Conservation Commission Meeting broadcasted byLexMeaia LExr?gc"10 P AGENDA Monday, January 6, 2020, 6:30 p.m., Parker Room, Town Office Building, 1625 Massachusetts Avenue 02420 Commissioners Present: Phil Hamilton, David Langseth, Duke Bitsko, Alex Dohan, Kevin Beuttell, Ruth Ladd and Holly Samuels Staff Present: Karen Mullins, Conservation Director and Katie Luczai, Staff Assistant 6:30 pm New Business/Pendine Matters Reports: Bike Advisory, Community Gardens, Community Preservation Committee, Greenway Corridor Committee, Land Acquisition, Land Management, Land Steward Directors, and Tree Committee Ms. Dohan reported that she has recruited the Wright Farm Subcommittee. The charge will be added to the next agenda to make their subcommittee official. Chairman Hamilton reported that former Conservation Commissioner Dick Wolk will be representing the Conservation Commission in the Bedford Street/Hartwell Ave Traffic Improvements Subcommittee. Review Proposed Wetland Protection Code, C. 130 Rules Amendments to Section 5 Performance Standards: S.5 (5) Buffer Zone and Section 5(2) Stormwater Runoff Ms. Mullins reported that the Community Development staff is working with DPW and a consultant to evaluate town wide stormwater runoff regulations. The Conservation Commission will schedule a separate meeting to discuss the proposed buffer zone regulations. The Commission discussed possibly increasing the minimum "do not disturb" buffer zone. The Commission will think of examples where wetland mitigation offers a benefit that counters an aspect of a project. The Commission discussed the difficulties of projects that are grandfathered in. Approve Minutes: 12/16/2019 Minutes will be approved at a later date. 2 Site Visit Schedule for 1/27/2020 Meeting Site visits will take place the Saturday prior to Monday evening meetings. Reminder: Joint Meeting of Conservation Commission and Stewards on Monday, January 13, 2020: Discussion of FY 2020 and FY 2021 Projects and Preliminary Discussion of FY 2022 Projects, Goalsetting and prioritization for budget development The Conservation Stewards/Conservation Commission joint meeting will be held on Monday, January 13Th, 2020 at 6:30pm in the Parker Room. 7:00 pm New Public Meetings/Hearings ViewPoint Cloud Permit 4AOOC-19-3 DEP 201-1077 BL 1034 Amendment to an Order of Conditions, 25 Hathaway Road Applicant: Paul Pusatere Project: Approval of driveway and patio expansion Documentation Submitted: - Project Plans: "Revised Site Plan, 25 Hathaway Road",prepared by Frederick W. Russell, PE, dated November 20, 2019 - Project Narrative: "re: 25 Hathaway Road, DEP File No. 201-1077; BL 1034", prepared by Frederick W. Russell, PE, dated 11/25/2019 - Engineering Comments: "Subject: 25 Hathaway Rd AOOC Engineering Comments", from Michael Sprague, dated 1/2/2020 Mr. Paul Pusatere, homeowner, presented before the Commission. The applicant constructed the patio and driveway larger than approved within the 100 foot buffer zone of a bordering vegetated wetland. He explained that the existing infiltration system is able to handle runoff from the increased impervious surface. The Engineering Dept agreed. On a motion by Mr. Beuttell and seconded by Ms. Ladd, the Commission voted 7-0 to close the hearing. On a motion by Ms. Dohan and seconded by Mr. Beuttell, the Commission voted 7-0 to issue the order of conditions. 7:04pm ViewPoint Cloud Permit 4CNOI-19-32 DEP 201-1170 NOI, 72 Kendall Road Applicant: Denny Zheng Documentation Submitted: 3 - Project Plans: "Site Plan, 72 Kendall Road"prepared by Hardy + Man Design Group, PC, dated October 4, 2019 - Drainage Report, prepared by Hardy+ Man Design Group, PC, dated December 12, 2019 - MassDEP Notice of Intent application, dated 12/11/2019 - Engineering Memorandum: "Subject: 72 Kendall Rd NOI", dated 1/3/2020 - Engineering Memorandum: "Subject: 72 Kendall Rd NOI 2", dated 1/6/2020 - Letter: "Subject: Proposed Building Addition", from Hardy+ Man Design Group, PC, dated 1/6/2019 - Revised NOI Package, "Application for Notice of Intent Filing", prepared by Hardy+ Man Design Group, PC, dated 1/3/2020 Mr. Chi Man, project engineer, presented before the Commission. The applicant is proposing to construct two additions and a driveway within the 100 foot buffer zone of a bordering vegetated wetland. There will be about a two foot grade change. The water runoff will continue to be directed towards the wetlands. In the twenty-five to fifty-foot buffer zone, there will be a 260 square foot reduction in impervious surface area. In the fifty to one hundred-foot buffer zone, there will be an increase in 1,600 square foot of impervious surface area. Concerns of the Commission: - The wetland delineation needs to be completed again because it did not take into consideration the Town Bylaws and additional concerns of inaccuracy. - Engineering calculations are incomplete and need to include the calculation for the percentage of disturbance within the 100 foot buffer zone. - Overflow of the infiltration unit. - Groundwater elevation accuracy in relation to the two foot separation. - Increase in impervious surface area due to the driveway. - There is no plan for invasive species removal. Concerns of the Abutters: - Water flow onto the rear depression leading into the rear property (Mary Dunn, 48 Grapevine Avenue) - Standing water on the property currently and is concerned about increased water runoff (Jerome and Sharon Smith, 8 Ryder Lane) - Increase in water runoff and groundwater level accuracy (Laura and Michael Schroeder, 56 Grapevine Avenue) Response of the Applicant: - The overflow can be directed on the other side of the property. - A site visit will be conducted with the wetland scientist to re-evaluate the wetland delineation. On a motion by Ms. Dohan and seconded by Mr. Beuttell, the Commission voted 7-0 to continue the meeting until January 27, 2020 at the applicant's request. 7:48pm 4 Continued Public Meetings/Hearings DEP 1154 BL 1109 ViewPoint Cloud 4CNOI-19-16 NOI, 4 Tidd Circle Applicant: Maliha Karim Project: Landscaping and construction of a retaining wall at a single family dwelling On a motion by Ms. Ladd and seconded by Ms. Dohan, the Commission voted 7-0 to continue the hearing until January 271h, 2020 at the applicant's request. 7:50pm DEP 201-1169 NOI, 244 Wood Street ViewPoint Cloud 4CNOI-19-28 Applicant: Massachusetts Institute of Technology Lincoln Laboratory Project: Electrical modifications to building Ms. Ladd recused herself. Mr. Nowak,project engineer with VHB, presented before the Commission. On a motion by Mr. Beuttell and seconded by Mr. Langseth, the Commission voted 6-0 to close the hearing. On a motion by Mr. Beuttell and seconded by Ms. Dohan, the Commission voted 6-0 to issue the order of conditions. 7:52pm DEP 201-1166 BL 1121 ViewPoint Cloud 4CNOI-19-29 NOI, 9 Philip Road (Bowman School) Applicant: Ameresco, Inc. Project: Construction of parking canopy solar photovoltaic energy system over existing parking lot and vegetated areas Additional Documentation Submitted: - Letter, "Solar Project Revisions Narrative", prepared by Stephen Herzog, dated 12/30/2019 - Photographs and video representative of site, dated 12/30/2019 - Site Plan: "Bowman BVW+BZ Restoration Sketch" - Engineering Memorandum: "Subject: 9 Philip Rd Comments", dated 1/6/2020 Mr. Stephen Herzog, consultant with Wood, Inc. and Mr. Jackson Doughty, project development engineer with Ameresco presented before the Commission. The northern array was shifted south 5 to reduce the impact in the 25-foot buffer zone. A 2:1 buffer improvement area is now proposed in an area that is currently being mowed. A shade-resistant blend of seed is proposed on the ground covered by the solar arrays. Concerns of the Commission: - What physical barriers are proposed to prevent children/maintenance workers from intruding in the restoration area? - Is there any plan for invasive species removal or monitoring? Response of the Applicant: - The applicant is working with the school to figure out how to best demarcate the area. - Invasive species maintenance is included in the operations and maintenance plan. Mr. Langseth did not vote due to a previous absence at the initial hearing. On a motion by Mr. Beuttell and seconded by Ms. Ladd, the Commission voted 6-0 to close the hearing. On a motion by Ms. Ladd and seconded by Ms. Dohan, the Commission voted 6-0 to issue the order of conditions. 8:08pm DEP 201-1167 BL 1122 ViewPoint Cloud 4CNOI-19-30 NOI, 17 Stedman Road (Clarke School) Applicant: Ameresco, Inc. Project: Construction of parking canopy solar photovoltaic energy system over existing parking lot and vegetated areas Additional Documentation Submitted: - Letter, "Solar Project Revisions Narrative", prepared by Stephen Herzog, dated 12/30/2019 - Photographs and video representative of site, dated 12/30/2019 - Site Plan: "Clarke Planting Plan" - Summary Report: "Re: Clarke Middle School—Solar Array Stormwater Calculations — Worst Case Scenario", prepared by DGT Associates, dated 12/16/2019 - Engineering Memorandum: "Subject: 17 Stedman Rd Comments", dated 1/13/2020 Mr. Stephen Herzog, consultant with Wood, Inc. and Mr. Jackson Doughty, project development engineer with Ameresco presented before the Commission. Gravel is proposed to be installed in the parking islands that will be covered by the solar arrays. A shade-resistant blend of seed is proposed to be planted in conjunction with the graveled areas. Trees that are going to be removed will be replaced elsewhere in the 200 foot riverfront area. Concerns of the Commission: - There is an increase in stormwater runoff. 6 Response of the Applicant: - Mr. Fred King, project engineer, explained that the stormwater calculations were created using the "worst case scenario". The Commission will approve the project pending approval by the Engineering Dept. On a motion by Ms. Ladd and seconded by Ms. Dohan, the Commission voted 7-0 to continue the hearing until January 27, 2020 at the applicant's request. On a motion by Ms. Ladd and seconded by Mr. Beuttell, the Commission voted 7-0 to adjourn the meeting. 8:30pm