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Sea‑level rise, water quality and habitat change flagged as high‑priority natural‑systems issues

3199157 · May 6, 2025
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Summary

Participants identified coastal erosion, sea‑level rise, water quality (including PFAS), invasive species and maintenance of conserved lands as natural‑systems priorities for the master plan, and noted that detailed coastal flood modeling exists for the island.

NANTUCKET, Mass. — Natural‑systems concerns — coastal erosion, sea‑level rise, water quality and habitat change — were prominent in the master‑plan visioning session, with participants urging the plan to treat conservation as active management as well as acquisition.

Facilitators summarized a broad set of community notes that included concern about drinking water quality and PFAS contamination, surface‑water problems including algal blooms, erosion and stormwater management. “People made comments about sea level rise, flooding, erosion, stormwater management,” a facilitator said, and several participants cited coastal flood mapping showing projected impacts by mid‑century and 2070.

One participant called out deer overabundance and tick‑borne disease as public‑health concerns tied to changing habitats. Others asked whether conservation goals already met should shift toward increased maintenance and management: “A lot of the issues…are issues of management,” a facilitator summarized, noting the island had spent years buying land and now faces ongoing stewardship needs.

The group referenced existing science: facilitators and attendees noted that mapping done by the Woods Hole Group shows which areas would be affected by a 100‑year storm in 2070, and speakers suggested distributing that data more effectively to the public.

Ending: Participants recommended treating conserved land as an asset that also requires active habitat, stormwater and shoreline management; they urged that detailed coastal science be used to set priorities and that public communications present clear timelines for expected impacts.