Seawall Height, Herbicide Trial Scrutinized by Conservation Commission

Key Points

  • Commissioners narrowly advanced a Gammons Road wall reconstruction after an intense debate over its height and design.
  • A proposed herbicide trial for Phragmites removal on the Gulf River was continued, with the commission demanding more detailed scientific protocols and a non-chemical control plot.
  • Commissioner William Ashton voiced strong opposition to the experimental use of herbicides in the salt marsh.
  • The commission's permit for a pool project at 35 Nichols Road was upheld in court after a nearly two-year appeal.
  • An enforcement issue at 83 Spring Street may require a show cause hearing after unapproved changes were made to the property's roof area.
  • The commission successfully cleared a backlog by approving six sets of meeting minutes from February through October.

The Cohasset Conservation Commission’s November 20th meeting was dominated by two significant public hearings, one concerning the height and construction of a seawall repair on Gammons Road and another detailing a controversial herbicide trial to combat invasive species along the Gulf River. Chaired by Chris McIntyre, the commission first worked through a backlog of administrative tasks, approving six sets of meeting minutes from earlier in the year.

The most extensive discussion of the evening focused on a proposal for 84 Gammons Road to repair existing stone walls and construct a new one. Applicant Andy Weiss presented a report from a coastal geologist, but commissioners delved into a lengthy debate over the plan to rebuild the dilapidated walls to a consistent nine-foot elevation using mortar. Vice Chair Steven Magnell questioned whether this would improperly alter the landscape, stating, "I'd really hate to see a standing stone wall that where the...marsh is going to get washed away." Chair Chris McIntyre shared similar concerns about the construction style, expressing that his "hope is that that's what we're doing is repairing the wall to its original and not...rebuilding it...in a new way." However, other members were satisfied. William Ashton supported the plan, noting, "I think it's more protective of the coastal bank than the current situation." Tom Bell agreed, finding the proposal "consistent with our bylaws and the state laws." The applicant defended the design, explaining the goal was "to ensure that you're stabilizing the coastal bank and eliminating what would be the sedimentation seeping through stones." After incorporating conditions from the Conservation Agent, the project was ultimately advanced. Motion Made by Tom Bell to issue an order of conditions for NOI 25-21 at 84 Gammons Road with the conditions that the agent just read. Motion Passed 4-0-1. A related variance was also issued. Motion Made by Tom Bell to issue a variance for NOI 25-21 84 Gammons Road. With a second from Kathy Berigan, the Motion Passed 4-0-1.

The commission then heard from Tanner Poole of Solitude Lake Management regarding a proposed ecological restoration project to remove invasive Phragmites reeds across several properties on Stanton Road, South Main Street, and Cedar Lane. The plan centered on a limited trial using herbicides to test their efficacy and impact. "Our primary objective which is to pretty much treat small replicated pilot plots...cause a low impact on the native species while doing a very effective job of controlling the fragmites," Poole explained. The proposal was met with skepticism. Tom Bell called the monitoring plan "a little skimpy here on specificity," demanding more rigorous scientific protocols. William Ashton voiced categorical opposition, declaring, "I don't think we should be issuing permits or variances for experiments." The commission directed the applicant to return on December 4th with a more robust plan that includes detailed soil and water testing, an added non-herbicidal cutting-only plot for comparison, and more ambitious success metrics.

In her report, Conservation Agent Charlotte Pectal updated the board on several ongoing projects, including an enforcement issue at 83 Spring Street where architectural changes were made after the commission's approval, potentially triggering a "show cause hearing." On a positive note, she announced that the town's permit for a project at 35 Nichols Road was successfully upheld in court after a lengthy appeal process. The meeting concluded after the agent’s report. Motion Made by William Ashton to adjourn. Motion Passed 5-0.