11/13/2025 CONSERVATION COMMISSION Minutes (2)

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Town of Mashpee Conservation Commission 16 Great Neck Road North Mashpee, MA 02649 NOI 5 Deans Hollow Road, John & Beth Ann Lewis & Drolet. Proposed raze of existing dwelling, construct and maintain new single-family dwelling with innovative alternative (FA) Septic system, hardscape, landscape, and mitigation plantings. (Representative: Cape & Islands Engineering, Inc.) (8.7 /9.4 / 10.23) (legacy Reg 25) 43- 3356 Other Team Members: • Attorney Adam Brodsky (environmental/land use counsel) • Andrew Garelli, RLA (Yarmouth Port Design Group) • Ekaterina Labovitch (Architect Associates) Project Status, Deliverables, and Abutter Concerns Attorney Brodsky opened by noting that both property owners and the project engineer, Mr. Roland, were unable to attend,but the landscape architect and building architect were present to address design details. He summarized the items delivered since the last hearing: • A recorded Title V nitrogen loading restriction and easement has been provided for both this house project and the related septic approval so that the Commission has the formal nitrogen-credit instrument on file. • A revised waiver letter, dated November 6, 2025, now explicitly references the Commission's Regulation 12 performance standards, as requested at the prior hearing. Attorney Brodsky then addressed the concerns previously raised by the abutters at 9 Deans Hollow Road(the Thurston's). Their earlier written and verbal comments focused on: • The location and design of the proposed retaining wall on the applicants' property. • Potential impacts on the Thurston's' existing retaining wall. • The placement of yard drains and a dry well near the shared property line. He explained that he has met with the Thurston's' multiple times since the last hearing. Those discussions led to several minor plan revisions, now shown on: • A revised proposed site and septic plan (Cape and Islands Engineering, dated November 4, 2025). • A revised landscape plan (Yarmouth Port Design, also dated November 4, 2025). • A revised foundation plan (Architect Associates, dated November 4, 2025). Key changes include: • The modular block retaining wall on the applicants' side will remain where shown, approximately four feet from the Thurston's' existing wall. This spacing: o Allow each property owner to maintain their own wall. o Avoid pushing additional fill further into the floodplain. o Preserves space for mitigation plantings between and around the walls. • Yard drains on the side nearest the Thurston's have been removed, and the dry well has been shifted to approximately nine feet from the shared property line, further reducing any perceived risk that infiltrated stormwater could undermine the abutters' wall. • Detailed information on the modular wall system (construction section, drainage detail) is now incorporated on the landscape plan and was provided to the Thurston's for review in advance of the hearing. 11