NEW CASSEL/HICKSVILLE GROUND WATER CONTAMINATION
NEW CASSEL/HICKSVILLE, NY
Health & Environment
On this page:
What Are the Risks at the Site?
There is insufficient information to determine the site-wide human exposure status at the New Cassel/Hicksville Ground Water Contamination site. The site consists of contaminated ground water in the vicinity of industrial areas near Hicksville, New Cassel, Westbury, Hempstead and Salisbury. EPA has conducted an initial investigation of the Site and confirmed the presence of elevated levels of volatile organic compounds (VOCs) including tetrachloroethylene (PCE), trichloroethylene (TCE), cis-1,2-dichloroethene (cis-1,2-DCE), and vinyl chloride in 11 public water supply wells, six in Hicksville, four in Hempstead, and one in Westbury. Nassau County's primary source of drinking water, the Magothy aquifer, has most likely been contaminated by the VOCs. Residents of these areas currently receive drinking water that has been treated for VOCs. EPA has initiated comprehensive remedial investigation activities at the site to further characterize the nature and extent of the contamination at the site and to prepare risk assessments to determine the potential impacts to human health and the environment.
EPA uses performance measures to track environmental results at Superfund sites. If you have any questions or concerns about the measures at this site, please contact the site team members listed under Site Contacts.
Read more about Superfund Remedial Performance Measures.
|Status at this
|What does this mean?|
|Human Exposure Under Control||Insufficient Data||Yes means assessments indicate that across the entire site:
No means an unsafe level of contamination has been detected at the site and a reasonable expectation exists that people could be exposed.Insufficient data means that, due to uncertainty regarding exposures, one cannot draw conclusions as to whether human exposures are controlled, typically because:
|Groundwater Migration Under Control||Insufficient Data||
Yes means EPA reviewed all information on known and reasonably expected groundwater contamination. EPA concluded the migration of contaminated groundwater is stabilized and there is no unacceptable discharge to surface water. EPA will conduct monitoring to confirm that affected groundwater remains in the original area of contamination.
No means EPA has reviewed all information on known and reasonably expected groundwater contamination, and the migration of contaminated groundwater is not stabilized.
Insufficient data means that due to uncertainty regarding contaminated groundwater migration, EPA cannot draw conclusions as to whether the migration of contaminated groundwater is stabilized.
Yes means the physical construction of the cleanup is complete for the entire site.
No means either physical construction is not complete or actions are still needed to address contamination.
|Sitewide Ready for Anticipated Use||No||Yes means:
No means that one or more of these three criteria have not been met. However, a site listed as no may still have redevelopment occurring on portions of the site and may be eligible for additional redevelopment.