03/19/2026 CONSERVATION COMMISSION Minutes

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07 Town of Mashpee Conservation Commission 16 Great Neck Road North Mashpee, MA 02649 NOI 28 Radcliffe Road, Christopher Peckham & Theresa M. Zonfrelli. Proposed construction of an accessory dwelling unit onto a single-family house. (Representative: Marsh Matters Environmental LLC). 43- 3407 The addition was proposed to be partially located within the 150-foot buffer zone but entirely within an existing lawn area, with no removal of natural vegetation. The project also included minor septic system modifications outside of Conservation Jurisdiction. The applicant requested a waiver from mitigation requirements, citing the presence of a paved roadway separating the property from the wetland resource area and arguing that additional plantings would not meaningfully benefit the resource area. Commissioners expressed differing views on the waiver request. Some members stated that mitigation was still appropriate within the buffer zone regardless of the roadway, particularly to address stormwater runoff and provide additional environmental benefit. Concerns were also raised regarding drainage, drywell capacity, and the septic system design, including whether groundwater and nutrient loading impacts had been adequately addressed. Other members acknowledged the practical and financial considerations of constructing an ADU for a family member and suggested a compromise approach, such as reduced (one-to-one) mitigation within the buffer area. Following discussion, the Commission indicated openness to a modified mitigation proposal and requested additional information, including details on drywell capacity, clarification on septic requirements, and confirmation of drainage patterns. The applicant agreed to revise the proposal accordingly and requested a continuance to April 2, 2026. MOTION: To continue 28 Radcliffe Road to April 2, 2026. Motion by: Sandi Godfrey Seconded by: Richard Sahl Vote: Motion passed by unanimous vote. (Steve Cook,Paul Colombo, Sandi Godfrey, Richard Sahl) ADOC 9 Santuit Lane. Proposed house to include a larger deck and a change in the applicant and owner. (Representative: Falmouth Engineering, Inc.) 43- 3320 Mike Borcelli of Falmouth Engineering, representing the applicant along with Attorney Brian Wall, presented a request for an amendment to an existing Order of Conditions for 9 Santuit Lane. The project involved demolition of a condemned house located at the edge of Santuit Pond and construction of a new home set significantly farther back from the resource area, along with installation of an upgraded nitrogen-reducing septic system. The proposed amendment reflected a change in ownership and modifications to the previously approved plan, including an increase in the size of the house and a larger wraparound deck, resulting in an approximate 580- square-foot increase. The revised design maintained key environmental improvements from the original approval, including reduced nitrogen loading, substantial buffer restoration with native plantings, and stormwater management through a proposed rain garden. Commissioners expressed concerns regarding the increased size of the structure and deck, particularly its proximity to the pond and encroachment into the proposed vegetated buffer area. Additional discussion focused 10