The meeting’s most discussion centered around the stormwater management project on Main Street. The applicant proposed installing a catch basin and recharge system in an existing parking lot to address stormwater issues. Javan Federa from Federa Engineering presented the project, highlighting the existing conditions, which included predominantly impervious surfaces and bordering vegetated wetlands. The proposed system aims to capture and treat stormwater runoff, which currently leads to ponding and untreated flow into the wetlands.

Concerns were raised regarding preliminary work conducted without prior approvals. Commissioners expressed worries about the adequacy of erosion controls and the impact on adjacent wetlands. A site visit revealed the presence of fencing not represented in the plans, and debris such as concrete Sono tubes and broken asphalt were noted on site. The applicant assured that these materials had been cleared and that erosion control barriers were now in place.

Further discussions highlighted the need for thorough cleanup of litter, particularly behind the fence where trash had accumulated. The landscaped area along the north property boundary was critiqued for its lack of adequate vegetation, and the removal of invasive Bittersweet plants from the northeast corner was suggested. The commission emphasized the importance of regulatory adherence and thorough preparation, especially given the unauthorized preliminary work.

A significant portion of the meeting was also dedicated to the technical aspects of the stormwater system design. Concerns were raised about the selected one-inch rainfall standard for treatment, considering anticipated increases in rainfall intensity due to climate change. The system includes initial capture by a catch basin, filtration through a CCH system, and overflow management to minimize erosion risk. Test pits confirmed high infiltration soils, specifically loamy sands.

The treatment of pollutants, particularly oils from vehicles and potential leachate from a nearby dumpster, was addressed. The catch basin includes a deep sump with a hooded outlet designed to trap oils, with the consensus that an additional oil or grease separator was unnecessary. The overall design aims to reduce the peak rate of runoff, accommodating future increases in rainfall without adding impervious surfaces.

The commission voted unanimously to issue a negative determination of applicability for the 323 Main Street project, with conditions including the requirement for native shrubs and ground cover, invasive plant removal, litter cleanup, and erosion control measures.

Another major item on the agenda was the project on West Street, presented by Moren Harold from Norris Environmental Services. The proposed renovations included removing structures like a deck and shed and constructing an addition, patio, and repaved driveway. The site, located near a perennial stream and associated wetlands, required a waiver due to work within a 35-foot no-structure zone. The commission agreed to a site visit to better understand the project’s impact, scheduling visits on two separate dates to accommodate members’ availability. The hearing for the West Street project was continued to August 28.

The commission also reviewed a project on Main Street, represented by Bill Nolan from Seavo Nolan Architects, which involved opening a guitar school in a former veterinary clinic. The project included replacing a dilapidated handicap ramp that did not meet regulations. Observations from a site visit noted trash, invasive Bittersweet plants, and old construction materials within the protected zone. The architect confirmed no soil tests for medical waste had been performed. The commission discussed erosion control measures, the need for proper plantings, and the removal of orange bands on trees to avoid confusion. A motion for a negative determination was made, with specific conditions for cleanup and erosion control.

The project on Pine Bell Avenue involved demolishing a porch and replacing it with a two-story addition within the existing footprint. Observations from a site visit included the presence of invasive plants and a temporary trampoline. Concerns about proper drainage and asbestos siding were addressed, with assurances that professionals would handle the hazardous material. The commission discussed the planting plan. Erosion control measures, stockpiling locations, and the need for proper management of disturbed areas were highlighted.

Additionally, the commission reviewed the certificate of compliance for 52 Lanas, noting progress in restoration efforts but identifying areas needing further attention. The discussion included strategies for maintaining plant health and ensuring ongoing compliance.