Conservation Commission — June 11, 2026

The Chair announced that items 4B (7 Abbott Park), 9, and 10 (85 Wilmington Road and 2 Wall Street) would be continued to the next meeting. Attendance was recorded, noting that Commissioners Rob Sheehan and Kent Moffitt were absent.

A motion was passed to continue the Abbott Park item to June 25th; other items were automatically postponed.

Items 4B, 9, and 10 are rescheduled for the June 25th meeting.

The Commission reviewed the minutes from the May 14th meeting. There were no corrections or comments provided.

The minutes for May 14th were approved unanimously.

Minutes for May 28th are pending and will be reviewed at a future meeting.

The applicant explained that a subdivision plan was approved years ago but never built; the planning board recently rescinded the subdivision. The Commission discussed the unusual nature of the request, noting they needed to reword the certificate to state the permit is no longer valid since work never occurred.

The Commission approved the certificate of completion to formally annul the permit for title purposes.

The homeowner noted that while required native wildflowers did not take, the area has restored itself naturally. Staff confirmed the addition was built according to plan and that the site visit showed satisfactory wetland restoration.

The Commission approved the certificate of compliance and the return of the $1,500 bond.

The homeowner must record the certificate with the Registry of Deeds; the bond release will be processed within a few weeks.

Staff noted an impervious surface increase of 21%, which was slightly higher than the permitted 18%, but confirmed the stormwater management remains adequate. The Commission discussed the health of newly installed trees and the importance of watering them.

The Commission approved the certificate of completion and the return of the $2,500 bond.

The owner presented via video, noting the project required a full stormwater plan due to impervious surface increases. Staff reported the site is stable and noted a beneficial design change where the stormwater chamber system was split into two, increasing storage capacity.

The Commission approved the certificate of completion and the return of the $2,500 bond.

The engineer presented a plan to manage a high groundwater table by using shallow stormwater chambers and grading the rear yard. There was a discussion regarding the use of 'dwarf' river birch vs. standard native birch (clarified as a native species) and a debate over the wording of liability clauses in the order of conditions to ensure the engineer's responsibility for design errors is clear.

The Commission approved the Notice of Intent, adopted the findings under Bylaw Article 14, issued the permit, and required a $2,500 security bond.

The applicant must record the order at the Registry of Deeds and pay the bond before a building permit is issued.

The project involves replacing an old home with a new one, resulting in an 1,850 square foot increase in impervious cover (a 90% increase, or 19% overall). Discussion included stormwater management via Coltec R180 HD chambers, a stone trench for the driveway, and the requirement to plant two native trees to mitigate the loss of a mature oak. The Commission expressed concerns regarding the single test pit used for groundwater verification and the presence of invasive Japanese knotweed. The applicant noted that the stormwater system is oversized relative to the roof area specifically to accommodate the lot's constraints.

The hearing was closed, findings were adopted, the permit was issued under the Burlington Stormwater Bylaw, and a $2,500 performance bond was imposed.

The applicant (Nordblum Company) proposed a multi-family project that includes a public 'linear park' and an underground parking garage. Key technical discussions focused on stormwater management (aiming for 91% phosphorus removal), tree preservation, and potential future infrastructure like a pedestrian bridge near the Staples site. The commission raised questions about groundwater depth, potential flooding of the garage, and the impact of infiltration on any existing contamination plumes.

The hearing was continued to the next meeting to allow the applicant to provide additional data and to align with Planning Board feedback.

The hearing is continued to the June 25th meeting. The applicant must provide LSP (Licensed Site Professional) data, clarification on phosphorus removal for the perforated pipe section, and details on a potential third water quality unit.

The applicant presented a revised plan to minimize truck backing on A Street and to improve the riverfront area. The plan includes converting approximately 3,985 square feet of hardpan gravel into a restoration area with native plantings and a stone infiltration trench to improve water quality. The applicant argued that the site is a 'redevelopment' area because it was degraded in 1996, proposing 3,985 square feet of restoration and the preservation of approximately 9,000 square feet of vegetation. Commission members debated the legal definition of 'degraded,' with some pointing to DEP guidance suggesting vegetation implies topsoil exists (making it 'new development'), while others cited the 'Algonquin' precedent to support using 1996 historical conditions. There was also debate over whether to use current site conditions, which include recent violations, or the 1996 baseline. The Commission reached a consensus that the proposed plan is a reasonable compromise that balances site use with riverfront restoration.

The presentation was received; the discussion focused on the technical aspects of the restoration and the O&M plan. The Commission reached a consensus that the proposed plan is a reasonable compromise that balances site use with riverfront restoration. They agreed to endorse the plan pending input from the Planning Board.

The hearing will continue on July 9th to allow the applicant to present to the Planning Board and for the Commission to review any potential impacts on their decision.

Members discussed potential walkability and traffic improvements for Middlesex Turnpike, including the possibility of a boardwalk to utilize the Vine Brook watershed as a community resource.

No formal action taken; noted as an ongoing area of interest.