TOWN OF BURLINGTON Conservation Commission

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TOWN OF BURLINGTON Conservation Commission MINUTES OF Approved May 26, 2016 Members Present: Members Absent: Also Present: Chair L. Cohen, K. Melanson, I. Deb, A. McNamara Vice-Chair W. Boivin, J.

1 TOWN OF BURLINGTON Conservation Commission MINUTES OF Approved May 26, 2016 Members Present: Members Absent: Also Present: Chair L. Cohen, K. Melanson, I. Deb, A. McNamara Vice-Chair W. Boivin, J. Lynch, G. Lima Conservation Administrator J. Keeley, Assistant Conservation Administrator H. Charles Lis 1. Call to Order L. Cohen called the meeting to order at 7:02 pm. 2. Citizens Time No one spoke. 3. Approval of Minutes April 28, 2016 Tabled to the Conservation Commission meeting of May 26, a. Request for Determination of Applicability 5 Marion Road Element Construction Construct new dwelling Contractor Adam Harrington of Element Construction represented this application. Mr. Pandolfo explained his request to demolish the existing structure and build a new dwelling. A portion of the new dwelling is within the 100-foot buffer zone to wetlands. H. Charles Lis noted: Two resource areas: o Buffer zone to bank: stream off the property in the rear, that is not on the regulated streams map o Buffer zone to wetlands: along the left of the property Recommends not confirming the boundary of the wetlands because the construction is within an existing lawn area Rooftop runoff to a dry well

2 Conservation Commission Meeting Requested: o Capturing the driveway runoff o Who flagged the wetlands? No concerns as long as grading does not exceed beyond what is on the plan 2 J. Keeley noted erosion from Marion Road is going into the stream; so capturing the driveway runoff is necessary. No intent of constructing a wall, just re-grading the area A potential fence along the 20 foot no disturb would be a short distance inside an existing stone wall The Conservation Commission requested: The engineer s calculations regarding the size of the drywell H. Charles Lis reviewed the findings and conditions. A MOTION TO ISSUE A CONDITIONAL NEGATIVE DETERMINATION OF APPLICABILITY FOR THE PROPOSED WORK AT 5 MARION ROAD WAS MADE BY I. DEB. THE MOTION WAS SECONDED BY A. MCNAMARA AND APPROVED (4-0-0). 4b. Request for Determination of Applicability 1 Wall Street The Gutierrez Company Walkway and landscaped area reconstruction Developer Israel Lopez of The Gutierrez Company, and landscape architect Kyle Zick of KZLA represented this application. Mr. Lopez explained the request to make renovations to the existing entrance plaza to improve it and make it easier for their guests to safely navigate. Mr. Zick noted: The existing vegetation would not be disturbed along the bank and the intent to retain the top of bank mulch bed. The plaza area has two trees and against the building has two trees. Those four trees are being removed. These trees are non-native plants. The replanted trees will be native. Square footage of impervious will not change. The plaza is stone dust, which takes most of the runoff, with the excess runoff going into a storm drain. Some pavement will be pulled away from the bank. No water will be flowing into the bank, just into the grass area at the top of the bank. H. Charles Lis noted: The resource area is a perrenial stream, and a small area of bordering vegetated wetlands adjacent to that This project is within the inner riparian area

3 Conservation Commission Meeting 3 The vegetative changes are an improvement to this area There are no concerns, except preventing the mulch bed from creeping into the bank and stream H. Charles Lis requested: Plans which show the correction to the limit of work be submitted to the Conservation office o Mr. Zick submitted those plans at 7:38 pm to staff Location of the removed and new trees The Conservation Commission requested: Preventing the mulch from going into the water with vegetation or other stabilization No cigarette disposal in the area H. Charles Lis reviewed the findings and conditions. A MOTION TO ISSUE A CONDITIONAL NEGATIVE DETERMINATION OF APPLICABILITY FOR THE PROPOSED WORK AT 1 WALL STREET WAS MADE BY A. MCNAMARA. THE MOTION WAS SECONDED BY I. DEB AND APPROVED (4-0-0). 5. Continued Public Hearing Notice of Intent 8 Lucaya Circle Town of Burlington Sewer pump station & force main rehabilitation DEP # Assistant Engineer Brian White of the Town of Burlington represented this application. The Conservation Commission staff requested: List of equipment used for the bypass piping The Conservation Commission staff and Mr. White noted: Last week, there was a break within the drywell of the pump station, where the pipe exits the pump station There is no permanent repair to be done without digging A temporary bypass has been installed A MOTION TO RATIFY AN EMERGENCY CERTIFICATION AT 8 LUCAYA CIRCLE WAS MADE BY K. MELANSON. THE MOTION WAS SECONDED BY A. MCNAMARA AND APPROVED (4-0-0). Scheduled inspections to prevent future failures in the pipes

4 Conservation Commission Meeting 6. Public Hearing Notice of Intent 3 Sycamore Street Joseph Kranz Residential renovations & addition DEP # Homeowner Joseph Kranz represented this application. 4 Mr. Kranz requested approval to put an addition on his home. H. Charles Lis noted: Resource area is a locally regulated stream Maple Meadow Brook The delineation has not been reviewed by staff Potential vernal pool on the other side of the stream; that buffer zone may touch a small corner of the lot Alternatives analysis showed the addition is going into a current patio and grass area and there was no feasible alternative No removal of vegetation Erosion controls as proposed looks fine H. Charles Lis requested: Additional information about the roof top runoff underground infiltration overflow pipe which exits outside the limit of work Conservation Commission discussed: Length of the sluice way, and possibly adding some rip rap Conservation Commission requested: Over flow pipe will need some rip rap 7. Public Hearing Erosion & Sedimentation Control Permit 154, 156 & 160 Cambridge Street Heritage Trail, LLC Demolition & new commercial & multi-family housing construction Engineers Frank DiPietro and Marissa Nesbit of the BSC Group, and developer Kevin Duffy of Duffy Properties represented this application. Mr. DiPietro explained the existing conditions of the site noting 60-70% of the water runoff flows directly into Cambridge Street with no treatment. Ms. Nesbit explained their proposal, noting: 3 buildings: 2 retail, and 1 residential (with 28 units) Majority of stormwater is collected in catch basins, treated with water quality units, discharged into the subsurface infiltration system in the parking lot, which connects to northern Cambridge Street pipe Roof top runoff will go to a detention system, and exit to southern Cambridge Street pipe Residential area will have all the parking lot runoff collected in catch basins, then to a

5 Conservation Commission Meeting 5 subsurface infiltration system, with discharge to southern Cambridge Street pipe Swale along the backside of the residential building, will prevent water from flowing into the neighborhood behind, it will be collected, and discharged to southern Cambridge Street pipe Creating the plateau for parking area requires a retaining wall 8 to 14 feet high along the edges No rain garden could be constructed because of ledge, so a landscaped island with walking path is being proposed instead Proposed 30% pervious from 7% pervious currently J. Keeley noted: The water quality units are Stormceptors 900 and 450i (applicant is claiming TSS removal 76%) which will need to be discussed further with staff Post peak rate improvements are significant compared to pre peak rates Ground water goes to Saw Mill Brook behind Shaws, but the water that drains from the site goes to the Cambridge Street MADOT system and flows to Sandy Brook behind Terry Avenue, so capturing water will improve groundwater recharge and flows to the Ipswich Basin which is impaired for flow Conservation Commission members discussed: The positive responses from the neighborhood meetings with the developer Roof top being infiltrated more rather than going into the detention system Retaining wall between residential and retail will have stairs connecting the sites Stabilizing the slopes near the Town buildings with hay bales and straw wattles Possible benefits of the residential portion having the roof top and parking lot run off separated Cleaning and maintenance provisions Water overflow system Erosion controls Conservation Commission members requested: Isolator row for the infiltration systems Explore capturing the water for landscape watering Double erosion controls along Cambridge Street for the wall construction Frank Costanzo, 1 Northeastern Avenue, spoke in support of the project noting the fencing between this property and the neighborhood. 8. Public Hearing Erosion & Sedimentation Control Permit 170 Cambridge Street Rockland Trust Company Demolition & new commercial construction Engineer Josh Swerling of Bohler Engineering represented this application. Mr. Swerling explained the request to build 27,000 square foot bank building. There will be a faux wrought iron fence along Forbes Ave. The proposal will have no changes to impervious

6 Conservation Commission Meeting area, the rooftop runoff will be infiltrated in a drywell, and a Stormceptor 900 will be installed. The attorney is determining if the fence on the retaining wall belongs to this site or 2 Forbes Ave., because the applicant would like to replace it. 6 The Conservation Commission staff discussed: Currently there is a lot of sheet flow off the site Evaluating the structure of the rear left wall Change in configuration (eliminating the catch basin to catch basin) and its effects on the run off The planting plan and possibly removing the Bradford Pear trees Trees being removed could cause slope erosion 9. Continued Public Hearing Notice of Intent 225 Middlesex Turnpike EvoText Building renovation & addition with new parking lot & utilities DEP # The was no testimony taken on this matter This hearing will continue at the June 9, 2016 Conservation Commission meeting. 10. Administration a. Planning Board Comments: None b. Subcommittee & Staff Reports: Conservation Commission budget was approved at Town Meeting, which included funding for a couple of interns to do stormwater sampling, and an increased land management budget for a part time conservation land manager to do work on the conservation lands. c. Upcoming Meeting Schedule: May 26, 2016 and June 9, 2016 d. Other: KOHL S has agreed to pay the full amount of the fine levied by the Commission for noncompliance with an Order of Conditions An abandoned homeless shelter was removed from the wetlands behind the KOHL S site A MOTION TO CLOSE THE MAY 12, 2016 CONSERVATION COMMISSION MEETING WAS MADE BY I. DEB AT 9:02 PM. THE MOTION WAS SECONDED BY A. MCNAMARA AND APPROVED (4-0-0). Minutes respectfully submitted by: Noelle Judd, Recording Clerk

TOWN OF BURLINGTON Conservation Commission

TOWN OF BURLINGTON Conservation Commission MINUTES OF Approved October 13, 2016 Members Present: Members Absent: Also Present: Chair L. Cohen, Vice-Chair W. Boivin, K. Melanson, A. McNamara J. Lynch, G.