Committee narrowly backs HB 1483 to enable local water‑supply studies for subdivisions

A legislative committee on Friday voted 8–7 to recommend House Bill 1483, a bill that would allow local planning boards to adopt subdivision regulations requiring water‑supply studies, minimum lot sizes, private well testing and a clarification that applicants pay associated costs.

Representative Darby, who moved to recommend the legislation, and Representative Rung, the second, acknowledged the bill has been refiled (LSR 2025‑0049) and said work remains to define scope and to avoid unintended consequences for affordable or workforce housing. "With some revisions to make sure that it does not disincentivize building affordable housing ... a well crafted piece of legislation could come out of this," Darby said.

Opponents said local planning boards already have many tools — including engineering and hydrological studies — and that mandatory requirements could be costly and difficult to administer. The chair and some members cited prior debate on a related measure (House Bill 310) and referenced testimony that hydrological analyses can be expensive (transcript references to figures in the hearing put large studies in the neighborhood of $100,000).

Staff and planning‑board members noted statutory language matters: existing statute (cited in the hearing as RSA 674:36 II) uses permissive language allowing planning boards to adopt subdivision regulations, and the committee discussed whether the bill's text would expand or merely clarify local authority. Several members asked for narrower language to define what size or type of project would trigger a required study.

After debate the committee recorded its recommendation to pursue legislation; members asked for clear definitions and for the record to indicate majority and minority positions for guidance when the bill returns to committee. The committee's roll call on the motion to recommend recorded the tally as 8 in favor and 7 opposed.