Public hearing held and closed with record open on 0 Peterborough Road single‑family proposal after neighbors press stormwater concerns

The Greenburgh Planning Board convened a public hearing on May 6 for PB2513, a proposal to construct a single-family dwelling at 0 Peterborough Road in Irvington. Engineer Andy Chung (AC Engineering) and owner/architect Guy Cone described permitting steps already completed, including a jurisdictional determination and a DEC permit for work within the 100-foot wetland buffer, a steep‑slope plan limiting high-disturbance areas, and a stormwater pollution prevention plan (SWIP) that routes rooftop and driveway runoff into three bioretention basins designed under the New York State stormwater design manual.

Chung explained the stormwater approach: roof and driveway runoff will drain to catch basins that feed three bioretention basins; underdrains and emergency overflow weirs route excess to the adjacent wetland while the basins are designed to reduce post-development peak flows relative to pre‑development conditions. The SWIP includes a maintenance schedule and requires a stormwater management control permit and inspections by the town engineer at key construction milestones.

Neighbors at the hearing expressed substantial concern that prior nearby construction (Mulligan Lane) underperformed in practice, contributing to flooding and debris on downstream properties. Speakers asked how inspection milestones and reports would be publicly accessible and how the town enforces long-term maintenance. Deputy Commissioner Schmidt said the Bureau of Engineering issues the stormwater management control permit, enforces a schedule of inspections (the ‘‘yellow sheet’’) and can accept spot inspections; he offered to connect neighbors with engineering staff. The applicant agreed to provide weekly/periodic contractor inspections (a DEC‑trained inspector) and said the contractor will double up silt fencing or add reinforced measures (wire-backed fencing and straw bales) where warranted. The applicant also agreed to run a 100‑year storm model and report back within days.

After extended public comment and applicant responses, the board voted to close the public hearing and keep the written record open through May 13 to allow submission of follow-up materials, including the 100‑year storm calculations and any additional documentation requested by staff.

Next steps: staff will circulate applicant follow-up calculations and coordinate with the Bureau of Engineering; the board will reconvene the matter after the written record closes to address outstanding technical questions and conditions.