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Harbor committee weighs mandatory dye tablets, pumpout logs and whether to pursue bylaw or regulation
Summary
At its March 17 meeting, the Nantucket Harbor Plan Committee discussed making dye (flourescent) tablets mandatory for visiting vessels, adding a dye‑tablet field to pumpout logs, and whether the requirement should be placed in a town bylaw or a regulation enforceable by the Marine Department.
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The Nantucket Harbor Plan Committee spent a large portion of its March 17 meeting discussing whether the town should require dye tablets for boats, strengthen documentation of pumpouts and place the requirement in a bylaw or a regulation.
Committee members framed the change as a means to protect shellfish beds and to give harbor authorities stronger enforcement tools in a federally designated no‑discharge zone. Members said mandatory dye tablets and pumpout logs could speed detection of illegal discharges near moorings and shellfish beds and provide documentary evidence for enforcement actions.
Why it matters: The committee identified local shellfish closures (the Horse Shed area was discussed) and recurring complaints about discharge near moorings as the main harms the change would address. Members cited other harbors where staff meet incoming vessels and furnish dye tablets as an operational model and said adding a simple checkbox and installer initials to existing pumpout forms would create auditable documentation for state funders and local enforcement.
Discussion highlights: - Several members recommended making the requirement either a town bylaw or a regulation directed at the Marine Department and mooring handlers, with a preference among some members for a regulation because it can be adopted by the select board without a town‑meeting vote. - Committee members said enforcement capacity matters: one member noted that increased pumpout staffing and a second pumpout boat make broader implementation more realistic now than in the past. - Members supported removing a draft sentence that suggested placing responsibility on “motivated voters,” calling it unnecessary and confusing. - A staff member explained the Massachusetts Clean Vessel Act pumpout reporting already captures vessel ID/registration, gallons pumped and date; adding a “dye tablet provided” column would reuse an existing reporting workflow rather than create an entirely new program.
No formal vote was taken. The committee directed staff to: (1) revise the draft recommendation language to say “bylaw/regulation” (or regulation if legal counsel recommends), (2) remove the sentence about transferring responsibility to voters, and (3) add wording describing a pumpout log field (vessel ID/registration, date, gallons pumped, dye tablet provided and installer initials) so the requirement can be audited.
Next steps: Staff will update the draft language to reflect the committee’s direction and circulate the revised text for further comment before the next meeting.

