11/20/2025 SEWER COMMISSION Minutes (2)

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Town of Mashpee Sewer Commission t 16 Great Neck Road North Mashpee, MA 02649 rather when the Town submits its watershed permit application, which has not yet been filed. The deadline to submit that application is 2030, and the Town then has 20 years from that point to reach 75% of the required nitrogen reduction. UPDATED PHASING PLAN & ROUTE 151 CONSIDERATIONS GHD then presented a revised phasing plan, updated after coordination with DPW regarding newly paved roads and paving moratoria, particularly along Route 151. The plan still retains: • Phase 1 (existing work) and • Phase 2 (currently underway), followed by: • Phase 3: Waquoit area(previously selected by the Town as next in sequence), • Phase 4: Purple-coded areas including portions of Great Neck South near the rotary, and • Phase 5: A return to the Waquoit area once the Route 151 moratorium constraints ease. A Commissioner questioned why Route 151 construction should affect the schedule, arguing that a six-inch sewer line could be pushed under the roadway without major disruption and that this concern should not delay needed phases. Mr. Drainville acknowledged that there are additional utilities, including a gas line, and explained that the intent is not to postpone the work but to adjust sequencing "around"the paving program and moratoria. He stressed that all phases will still occur and that the overall nitrogen-reduction schedule remains intact; the Town is simply reordering parts of the work to respect the paving program while still meeting long-term goals. WAQUOIT PHASES & CONTINGENT PHASE 9 The discussion turned to which phases fall within the Waquoit watershed. Mr. Drainville indicated that Phases 3, 5, 7, and 9 are associated with the Waquoit area, as shown by the watershed boundary line on the map. He added that Phase 9 is not expected to be needed if nitrogen reductions in the earlier phases perform as planned, though the phase remains on the map as a contingency. The detailed rationale for why Phase 9 may not be required was still being developed and not fully presented in this portion of the meeting.