Operable Unit 1 : As part of the investigation of the groundwater south of Old Country Road, or Operable Unit 1 (OU1), EPA is drilling groundwater monitoring wells. This work will be completed by the end of 2022. EPA will also collect additional data to support the engineering design needed.
| City | New Cassel/Hicksville |
|---|---|
| County | Nassau County |
| State | New York |
| Coordinates | 40.75245, -73.55978 |
New Cassel Hicksville Ground Water Contamination is a federal Superfund site in New York. The Superfund program, created by Congress in 1980, addresses sites where hazardous substances have been released or threaten release into the environment. EPA scores potential sites using the Hazard Ranking System; those that score high enough are placed on the National Priorities List.
Current status: Listed on NPL. This site is on EPA's National Priorities List, which identifies the most serious uncontrolled or abandoned hazardous waste sites in the country. Listing triggers federal cleanup authority and funding under CERCLA (the Superfund law).
EPA has identified 10 contaminants of concern at this site, including 1,1,1-trichloroethane, 1,1,2,2-tetrachloroethane, 1,1,2-trichloroethane. Contamination has been detected in groundwater.
If you live near this site and have health concerns, your state health department can provide site-specific guidance. EPA maintains a community involvement program for most NPL sites, and site documents — including the Record of Decision, five-year reviews, and public health assessments — are typically available through EPA's Superfund site profile.