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Commission continues Whittemore Ave addition and nitrogen‑reducing septic upgrade to Nov. 13 for additional documentation
Summary
Engineer Mark Dibb told the commission a second-floor addition at 4 Whittemore Ave would include a nitrogen‑reducing septic upgrade and that the Board of Health has approved the nitro system; commissioners asked for dune delineation, restoration of crushed‑shell areas and a structural letter confirming the house sits on piles, and continued the matter to Nov. 13.
Mark Dibb of Capen Islands Engineering presented a continued notice of intent for 4 Whittemore Avenue describing a second‑floor addition and a septic upgrade that includes a nitrogen‑reducing system. Dibb said the Board of Health had approved the nitro system and that the upgrade will improve effluent performance compared with existing conditions.
Staff and commissioners raised concerns about areas of crushed shell and prior vegetation removal near driveways that should be restored, and they requested a field-verified coastal dune delineation to confirm setback compliance for the larger design flow created by the addition. Commissioners also asked for a written letter from the project engineer confirming the house is supported on piles rather than a concrete foundation so the commission can resolve questions about prior unpermitted enclosure and the location of piles visible in older photos.
Dibb requested a continuance to Nov. 13 to provide the additional documentation. The commission voted unanimously to continue to Nov. 13; staff will review the dune delineation, quantify enclosed square footage beneath the structure and ensure shell areas are restored as part of conditions.
