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Planning Board asks staff to clarify how to count pervious pavers under new impervious‑surface rules
Summary
Board members asked village staff and engineers to decide how much credit to give pervious (porous) paver systems when calculating impervious coverage under a new local code, with a staff determination requested quickly to guide applicants.
At the Nov. 13 Planning Board meeting, board members pressed staff to provide a prompt, consistent interpretation of how pervious or permeable paver products count toward the village’s newly adopted maximum impervious‑surface percentages.
Staff summarized an internal memorandum and asked village engineers and consultants (John Kellard and Gino) to recommend a percentage approach (for example, counting some fraction of the paver area as impervious versus non‑impervious) and to provide applicants with explicit guidance before the next submission deadlines. The board discussed the balance between interpreting existing code and proposing a code amendment for clarity; staff said an interim building‑department determination can be used for the pending Madison/Madison‑Street applicant while trustees consider formal code changes.
Board members stressed the need for a defensible, repeatable methodology and asked staff to consult product data and provide an engineering basis for any percentage credit (for example, 10% or other ratios were discussed as examples). The board also asked that staff notify applicants as soon as a determination is made so projects pending under the new thresholds are not left waiting.
Next steps: staff and village engineers will recommend a percentage or method to count pervious pavers for the board and will inform applicants of the determination; the board may ask the Board of Trustees to consider a code amendment for longer‑term clarity.
