NEW GLOUCESTER — The New Gloucester Planning Board on Tuesday continued to chip away at changes to the town’s shoreland zoning law to make it comply with state law changes that went into effect July 1.

The board, joined by a half dozen public participants, agreed to preserve the current Lake District zoning map boundary that will become the newly named Limited Residential Shoreland area.

The public’s concerns about safeguarding Sabbathday Lake, classified as moderately unstable by Maine’s Department of Environmental Protection, will include more protection beyond the state’s recommended 250-foot buffer.

Ongoing efforts have protected the lake for more than a decade from storm-water runoff.

After grappling with whether the new revision will be a free-standing ordinance, the board decided to integrate the updated revisions into the body of the town’s 197-page zoning ordinance.

New definitions will be added, performance standards integrated and administrative sections of the ordinance updated.

The public urged the board to disallow mineral extraction in the Limited Residential Shoreland area. But, Planning Board Chairman Jean Libby said she opposed restricting gravel mining. Other board members said they were uncertain.

The current Lake District will become the Limited Residential Shoreland, subject to code enforcement officer review and permits plus Planning Board review, in some cases.

The new ordinance requires new structures must be built 100 feet from the high water mark of the lake.

Nonconforming lots of record may not increase their size within the first 25 feet of the lake.

A copy of the ordinance changes is expected to be ready for review by 7 p.m. at the Oct. 6 workshop at the Meeting House in Lower Gloucester.

Then a joint meeting with selectmen and the town’s Land Use Committee will take place. Once these entities agree with the proposed changes, a public hearing will be scheduled followed by a special town meeting asking voters to adopt the changes.