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HomeMy WebLinkAbout2017-06-26-CONCOM-min TOWN OF LEXINGTON, MASSACHUSETTS CONSERVATION COMMISSION MINUTES Monday June 26, 2017 6:30 P.M. Parker Room, Town Office Building 1625 Massachusetts Ave Chair Philip Hamilton opened the meeting at 6:30pm in the Parker Room Commissioners Present: Phil Hamilton, Alex Dohan, Kevin Beuttell, Duke Bitsko, Dick Wolk, David Langseth, Ruth Ladd Others present: Casey Hagerty, Conservation Department Assistant 6:30pm Request for Insignificant Plan Change at 132 Marrett Road, DET 17-5 Mr. Hamilton explained that this is a very minor change to the proposed drainage plan. Motion to approve the insignificant plan change made by Mr. Wolk and seconded by Mrs. Dohan. Vote: 7-0 in favor. Request for Insignificant Plan Change at Concord Ave Sidewalk, DEP 201-930, BL 890 Mr. Hamilton explained that the plan change being requested is to use rip rap to stabilize the slope rather than a vegetated slope. At this point the slope is stabilized. Questions and comments from the Commission: The commission asked how steep the slope was. The applicant explained that it is about a 1:1 slope. The commission stated that because of the steepness of the slope and because it is already stabilized, they find this plan change acceptable. Motion to approve the insignificant plan change made by Mr. Langseth and seconded by Mr. Beuttell. Vote: 7-0 in favor. 6:34pm Issue Certificates of Compliance: 63 Winter Street, DEP 201-1003, BL 960 Motion to issue the Certificate of Compliance made by Mr. Wolk and seconded by Mr. Langseth. Vote: 7-0 in favor. Issue Certificates of Compliance: 29 Fairlawn Lane, DEP 201-1016, BL 973 Motion to issue the Certificate of Compliance made by Mrs. Dohan and seconded by Mr. Beuttell. Vote: 7-0 in favor. Issue Certificates of Compliance: 23 Oxbow Road, 201-993, BL 950 Motion to issue a Certificate of Compliance made by Mr. Wolk and seconded by Ms. Ladd. Vote: 7-0 in favor. 6:35pm Compliance discussion: 22 Barberry Road, DEP 201-607, BL 566 Mr. Hamilton explained that this Order of Conditions was issued in 2004. The applicant is now seeking certificate of compliance, but there are some changes that were not approved. Two pipes were found to be outletting in the rear of the property. Questions and comments from the Commission: The commission asked if there was erosion at the end of the pipes. Mr. Hamilton explained that there is no erosion. The commission discussed whether erosion could become a problem in the future. The commission said they would feel comfortable with a rip rap apron at the end of the pipes consisting of 4-6 inch stones a foot wide and two feet long. The Commission would want to see evidence that this was installed before they release the Certificate. Motion to issue the Certificate of Compliance with additional conditions made by Mr. Langseth and seconded by Mr. Wolk. Vote: 7-0 in favor. 6:43pm Enforcement 5 Hadley Road Mr. Hamilton explained that the homeowner is going to come in for a restoration hearing. 6:44pm Approve minutes: 5/30/2017, 6/12/2017 Motion to approve minutes of 5/30/2017 made by Mrs. Dohan and seconded by Mr. Langseth. Vote: 7-0 in favor. The minutes of 6/12/2017 will be approved at the next meeting. 6:46pm Schedule Site Visits for the 7/10/17 meeting Site visits were scheduled for Sunday 7/9/17 at 9am. 6:47pm There were no reports. NEW MEETINGS/HEARINGS 6:49pm DEP 201-1061, BL 1018 NOI, Dunback Meadow Owner: Town of Lexington Engineering Department Applicant: Town of Lexington Project: Sewer lining repairs Matt Weisman- Town Engineering department, Nathan Michael- Weston and Sampson Mr. Weisman explained that the town is in the process of inspecting all of the sewer lines in town. Weston and Sampson has been doing this work for the town for the past eight years. Last summer, Weston and Sampson found a large sinkhole in Dunback Meadow. Mr. Michael stated that this summer they want to permanently fix the sinkhole problem. They are proposing to come in to Dunback Meadow from Franklin Field and line 600-800 ft. of the sewer. They will use the existing path the entire way to avoid disturbance. In one area, they will have to use timber mats to access the area. Questions and comments from the Commission: The commission asked the applicant to describe the fueling process. Mr. Michael stated that all of the bypass equipment will be kept behind the school. There will be a backup fuel pump and the fuel tank will be double lined and completely contained. The commission asked how fuel is transferred from the tank to the pumps. The Commission also asked how the 500 gallon fuel tank would be refilled. Mr. Michael said he would provide more details regarding this process. The commission stated that they would want a condition that the fuel tank will be fully secured with a fence around it as well as a condition that the pump will only run during working hours. The commission stated that they will need to see a remediation plan for the area under the timber mats. Motion to continue the hearing until 7/10/2017 at the applicant's request made by Ms. Ladd and seconded by Mr. Beuttell. Vote: 7-0 in favor. 7:08pm DET 17-15 RDA, 6 Green Lane Owner/applicant: Antonio and Lori Nardelli Project: Second Story Addition Antonio Nardelli- Homeowner Mr. Nardelli explained that they want to put a second story onto the house to create an accessory apartment. The addition would be in the footprint of the existing home. Questions and comments from the Commission: The commission stated that it appeared that a second driveway was proposed. The commission explained that the runoff from the driveway will have to be accounted for. Mr. Nardelli said he is working with an engineer for details regarding a pervious paver driveway. Motion to continue the hearing to 7/10/2017 at the applicant's request made by Ms. Ladd and seconded by Mr. Langseth. Vote: 7-0 in favor. 7:19pm DET 17-16 RDA, 6 Alcott Owner/applicant: Drew Fudenberg and Geneen O'Brien Project: Removal of chimney and deck and minor addition Joseph Kennard- architect Mr. Kennard explained that they are working with their client to renovate the interior of the home as well as some minor exterior work. They are proposing a new patio in the place of an existing patio. Two small landings will be added at the exterior doors. Questions and comments from the Commission: The commission stated that under the Lexington regulations, an applicant could not take credit for removing impervious surface. Because the proposed patio is over 100 sq. ft. it is subject to stormwater regulations. The applicant provided the commission with an alternate plan with the patio removed. Mr. Kennard explained that at this point they are going to eliminate the patio and talk with the applicant about what they want to do. The commission clarified that they are going to approve the modified plan. Motion to issue a Negative Determination with conditions made by Mr. Langseth and seconded by Mr. Beuttell. Vote: 7-0 in favor. 7:35pm DEP 201-1015, BL 972 AOOC, 435-439 Lincoln Owner/applicant: North Shore Residential Development Project: Amend language of Order of Conditions to reflect a restrictive covenant rather than Conservation Restriction Ron Lopez- North Shore Residential Development Mr. Lopez explained that they are proposing to change the language of the Order of Conditions to reflect a restrictive covenant rather than a Conservation Restriction. He explained that this agreement would just be between the condo development and the town rather than including the state. Questions and comments from the Commission: Mr. Hamilton explained that Town Counsel has reviewed the proposed language and has approved it. The Restrictive Covenant will have language regarding ongoing perpetuity of the covenant. Motion to close the hearing made by Mrs. Dohan and seconded by Mr. Langseth. Vote: 7-0 in favor. Motion to issue the Amended Order of Conditions made by Mr. Beuttell and seconded by Mrs. Dohan. Vote: 7-0 in favor. Continued Meetings/Hearings 7:39pm DET 17-9 RDA, 19 Baskin Road Owner/applicant: Nick Yang Project: Home addition Mr. Hamilton entered the engineering report into the record. Motion to issue a Negative Determination with Conditions made by Mr. Wolk and seconded by Mrs. Dohan. Vote: 7-0 in favor. 7:43pm DET 17-13 RDA, 40 North Street Applicant/Owner: Daniela Rohne-Garlapati Project: Utility work and additional pavement Daniela Rohne- Homeowner, Dr. Chang- Engineer Ms. Rohne explained that she has worked with an engineer and architect to submit drainage calculations. She will be mitigating for the driveway as well as the home addition. Mr. Hamilton entered the engineering report into the record. Questions and comments from the Commission: The commission stated that they want the engineering departments concerns about soil test pits addressed before issuing the permit. Motion to continue the meeting to 7/10/2017 at the applicant's request made by Mr. Langseth and seconded by Mrs. Dohan. Vote: 7-0 in favor. 7:57pm DET 17-15 RDA, 27-29 Hartwell Ave Applicant/Owner: Timothy White, Alexandria Real Estate Equities Project: Two small additions and site work David Kelly- Kelly Engineering Group and Tim White- Alexandria Properties Mr. Kelly reminded the Commission that the project involves some minor site work and a drain connection. There are no wetlands in the area. Since the last meeting, they have revisited the stormwater analysis and have addressed the commission' concerns. Mr. Kelly stated that they are proposing to do test pits at the time of construction and if the soils they find are not favorable, they will return to the commission. Mr. Hamilton entered the engineering report into the record. Questions and comments from the Commission: The commission stated that it is the applicant's risk if the soils are not favorable. Motion to issue a Negative Determination with conditions made by Mr. Wolk and seconded by Mrs. Dohan. Vote: 7-0 in favor. 8:12pm DET 16-8 RDA, 90 Grant Street Owner/applicant: J and N Design and Build Project: Request to amend approve drainage plan John McGeogh- owner, Bob Bibbo- surveyor, Dr. Chang-project engineer Mr. McGeogh explained that they are in front of the commission to amend the originally approved drainage plan. Because of the amount of blasting that was needed on the site, there were more opportunities for infiltration on the site. There is now a 30 ft. wall behind each house that has been backfilled with material from the blasting. The water will be directed to this area behind the homes and infiltrated through the rock. From there, it will travel to the dry wells on site. They were able to drastically reduce the amount of drywells that were needed on site. Mr. Hamilton entered the engineering report into the record. Questions and comments from the Commission: The commission asked what happens if the water does not stay behind the houses. Mr. McGeogh explained that the way the houses were constructed would allow the water to slowly dissipate from behind the houses if needed. In an emergency situation, there will still be a connection to the town drainage system. The commission asked if there was a chance of the water freezing. Mr. McGeogh explained that the depth is below the frostline and the heat from the foundation of the home will keep it warm. The commission asked if the waterproofing from the house may break in the future. Mr. McGeogh explained that the manufacturer has told him that the waterproofing will hold up in the future and there are other back up controls as well. The commission asked for analysis on the gradation of the rock. They want to know the void ratio. Mr. McGeogh stated he will provide this information. The commission requested details of how the water will be directed to the dry wells on site. Motion to continue the hearing to 7/10/2017 at the applicant's request made by Mr. Wolk and seconded by Mr. Beuttell. Vote: 7-0 in favor. 8:51pm DEP 201-1057, BL 1014 NOI, Old Mill Road Owner: North Shore Residential Development and City of Cambridge Applicant: North Shore Residential Development Project: Improve an existing trail Motion to continue the hearing to 7/10/2017 at the applicant's request made by Mrs. Dohan and seconded by Ms. Ladd. Vote: 7-0 in favor. 8:52pm DEP 201-XXXX, BL XXXX NOI, 758 Marrett Road Owner/Applicant: Minuteman Vocational Regional and Technical High School Project: Raze and rebuild of existing school building and associated site work Steve Garvin- Samiotes Consultants Mr. Garvin explained that he has responded to the comments brought up by the commission at the last meeting as well as the comments brought up by the peer reviewer. Mr. Garvin went through each of the issues and provided clarification. The town's peer reviewer, Dave Nyman of CEI, stated he is comfortable with everything done to date. He has provided the commission with a few sample conditions he recommends to be included in the order. He stated that they still must review the run off volume amounts. Questions and comments from the Commission: The commissioners stated that there were still some issues that had not been addressed such as the grading plan and the roadway within the 25 ft. buffer. The commission requested curbing or some other form of protection from snow plowing. The commission requested a wildlife impact study because the lights are so close to the wetlands. The commission stated that they would like to see a training plan for school staff for how to maintain the BMPs on site. Questions and comments from the public: Jamie O'Connell of the Cambridge Water Department had a few questions for the applicant that were satisfactorily answered. Motion to continue the hearing to 7/10/2017 at the applicant's request made by Mr. Wolk and seconded by Ms. Ladd. Vote: 7-0 in favor. 9:44pm DEP 201-1060, BL 1017 NOI, 420/430 Bedford Street Applicant: Leslie Knowles, Boston Properties Owner: Elandzee Trust c/o Boston Properties Project: Parking Lot Improvements Chris Thompson- BSC Group, Leslie Knowles- Boston Properties Mr. Thompson explained that they have revised their plans since the last meeting. They have added some grass strips where possible and reduced impervious cover by 17%. He stated they are complying with MassDEP standards for a redevelopment project. He stated that the applicant understands they will need to provide an as-built plan to show they have not lost any flood storage. Questions and comments from the commission: The commission asked why the islands were proposed as raised rather than depressed. He explained that depressed islands would lead to a loss of flood storage. The commission asked how many water treatment units were added. Mr. Thompson answered they added two units; one is in the main lot and one is on the driveway. The commission asked for details regarding the snow storage plan. Mr. Thompson explained that the snow is hauled off site once snow storage on site is full. Motion to close the hearing made by Mr. Wolk and seconded by Mr. Beuttell. Vote: 7-0 in favor. 9:56pm DEP 201-1058, BL 1015 NOI, 167,173,177 Cedar Street Owner: Peter and Susan Staeker Applicant: 167,173,177 Cedar Street LLC Project: Activities associated with a subdivision roadway construction Mike Novak- Meridian Engineering, Ben Finnegan- Finnegan Development Mr. Novak stated that they got approval from the planning board for the ten lot subdivision. With this filing, they are just seeking approval for the road and associated drainage. Four infiltration units will be used for the roadway and some portions of the houses. Questions and comments from the Commission: The commission asked for clarification regarding the rip rap in the back of the lots. Mr. Novak stated they will provide details regarding this. The commission stated that they would like to see some kind of seeding on the wall. The commission asked if all lots were under 50% disturbance. Mr. Novak answered that all lots were under 50%. Lot 9 is close to the 50% mark but they will be able to stay under. The commission stated they would like to see a planting plan for the infiltration basins. Mr. Hamilton entered the engineering report into the record. Motion to continue the hearing to 7/10/2017 at the applicant's request made by Ms. Ladd and seconded by Mrs. Dohan. Vote: 7-0 in favor. 10:15pm Motion to adjourn made by Mr. Wolk and seconded by Mr. Langseth. Vote: 7-0 in favor. A Respectfully Submitted, Casey Hagerty Conservation Department Assistant Approved 7/24/2017