MAMARONECK, NY (May 25, 2025) — The New York State Department of Environmental Conservation (NYSDEC), in consultation with the New York State Department of Health (NYSDOH), is reviewing a proposed cleanup plan for the 965 Mamaroneck site at 965 Mamaroneck Avenue, Mamaroneck, Westchester County, and invites public comments through May 24, 2025. The 0.5-acre site, part of New York’s Brownfield Cleanup Program (BCP), contains a 3,600-square-foot single-story building historically used as a dry-cleaning facility from 1972 to 2018 and is now a liquor store.
The Draft Remedial Action Work Plan (RAWP), developed by 1946 Holding Corp., addresses contamination identified during a remedial investigation. The investigation found chlorinated volatile organic compounds (CVOCs), specifically tetrachloroethane (PCE) and its degradation products, in on- and off-site groundwater above applicable standards, linked to the site’s dry-cleaning history. Groundwater also showed exceedances of semi-volatile organic compounds (SVOCs), metals, and per- and polyfluoroalkyl substances (PFAS), including PFOA and PFOS. Soil sampling detected PFOA and PFOS above proposed Protection of Groundwater soil cleanup objectives. Sub-slab soil vapor and indoor air tests showed low CVOC concentrations, requiring no further action per NYSDOH guidelines.
The proposed Restricted Use cleanup plan includes treating contaminated groundwater with chemical oxidant injections, collecting post-injection groundwater samples to evaluate effectiveness, maintaining the current site cover system to address soil contamination above commercial use standards, implementing a Health and Safety Plan and Community Air Monitoring Plan during ground intrusive activities, establishing a Site Management Plan for long-term maintenance, and recording an Environmental Easement to ensure proper site use. The site is zoned for commercial use, with proposed redevelopment as commercial retail.
NYSDEC is accepting written comments on the RAWP from April 9 through May 24, 2025. Comments can be submitted to NYSDEC Project Manager Michaela Cochran at 625 Broadway, Albany, NY 12233-7014, or via email at michaela.cochran@dec.ny.gov. For health-related questions, contact John Robinson at NYSDOH, Corning Tower Room #1787, Albany, NY 12237, or at (518) 402-7881. Project documents are available online via the DECinfo Locator at https://extapps.dec.ny.gov/data/DecDocs/C360189/ or at the Mamaroneck Public Library, 136 Prospect Avenue, Mamaroneck, NY 10543.
NYSDEC, with NYSDOH concurrence, will consider public comments, revise the plan as needed, and issue a final Decision Document. The approved cleanup will be designed and performed by the applicant under NYSDEC and NYSDOH oversight. For more information on the BCP, visit https://dec.ny.gov/environmental-protection/site-cleanup/brownfield-and-state-superfund-programs/brownfield.
This article was drafted with the aid of Grok, an AI tool by xAI, under the direction and editing of Robert Cox to ensure accuracy and adherence to journalistic standards.