05/07/2026 CONSERVATION COMMISSION Minutes

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Town of Mashpee Conservation Commission 16 Great Neck Road North Mashpee, MA 02649 Several Commission members acknowledged the revisions and reductions incorporated into the proposal,including significant decreases in lawn area, increased native mitigation plantings, and use of pervious materials. It was also stated that the applicant had addressed the Commission's prior requests and that further policy discussion regarding nitrogen standards and groundwater protection may be more appropriately addressed during future Commission workshops or quarterly meetings rather than within the scope of the current hearing. Discussion concluded with reference to standard mitigation and planting conditions, including recommendation for a two-year mitigation monitoring requirement. MOTION: To close an issue on 31 Nick Trail. Motion by: Seana Pitt Seconded by: Steve Cook Vote: Tie vote and therefore failed. Aye: Steve Cook, Seana Pitt Nay: Paul Colombo, Sandi Godfrey Following the failed 2-2 vote on the Notice of Intent for 31 Nick Trail, discussion occurred regarding quorum requirements and participation by Commissioners who had missed prior hearings. It was stated that Mullen forms had been completed for absent members in order to allow participation in deliberations. The applicant's representatives then asked whether there were additional measures that could be taken to secure approval of the project, stating that all requested revisions and mitigation measures had already been completed. Discussion focused primarily on the nitrogen loading issue that had resulted in the split vote. It was stated that the existing approved septic system remained the principal factor contributing to the nitrogen calculations and that achieving a nitrogen concentration below ten parts per million would not be possible with the approved system currently in place. Representatives for the applicant argued that the project already represented a significant improvement over existing conditions through reduced lawn area, additional landscaping, dry wells, flood-compliant construction, and overall reductions in nitrogen loading compared to existing site conditions. It was further stated that the project complied with applicable local regulations establishing a 19 milligrams-per-liter threshold for the type of residential project proposed. Additional discussion addressed whether installation of a different denitrifying septic system could further reduce nitrogen loading calculations. It was acknowledged that use of a different septic technology could potentially lower nitrogen levels, although it was stated that such changes were outside the scope of the current Notice of Intent because the septic system had already been separately approved. Concern was also expressed that the septic technology originally approved for the property was no longer accepted by the Town or DEP for denitrification purposes. The property owner addressed the Commission and expressed frustration regarding what was described as inconsistent application of nitrogen standards compared to other recently approved raise-and-replace projects within the same neighborhood. It was stated that the applicant had complied with all prior Commission requests, including reductions in lawn area,increased landscaping,use of pervious materials, and other mitigation measures,yet was now being asked to satisfy a nitrogen standard that had not previously been applied to comparable projects. The applicant further stated that substantial time and expense had already been invested in engineering,landscaping, and permitting efforts in reliance on prior septic system approvals. Further discussion occurred regarding interpretation of local regulations governing groundwater protection and cumulative adverse effects.It was stated that recently approved projects in the area generally utilized denitrifying systems and produced lower nitrogen loading calculations than the subject proposal. Discussion also addressed the fact that the originally approved septic technology was no longer accepted for new approvals as of March 1,2026.The applicant's representatives maintained that the project remained compliant with applicable bylaws and regulations in effect for the proposal and argued that standards should be applied consistently among similarly situated projects. Discussion concluded with the applicant requesting a continuance in order to further evaluate potential options for reducing nitrogen loading calculations and addressing the Commission's remaining concerns. 10