Mendham board asks governing body to examine impervious-coverage rules, citing stormwater gap

Mar 12, 2026

Board counsel told members that township rules cap accessory-structure impervious coverage but not principal structures, leaving a stormwater-protection gap. The board authorized counsel to draft a letter to the governing body raising the concern.

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At the March 12 meeting, board counsel raised concerns about the township ordinance’s handling of impervious coverage. Mr. Sposaro said Mendham Township limits impervious coverage for accessory structures either singly or in combination, but the ordinance does not set limits on impervious coverage for a principal structure; he warned that ‘‘if stormwater is accounted for, there are no guardrails in the Ordinance that serve as protection on the impact of development.’'

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