SALISBURY - The U.S Environmental Protection Agency (EPA) today announced its decision to put parts of Hicksville, New Cassel, Westbury, Hempstead and Salisbury on the Superfund National Priorities List of the country's most hazardous waste sites.

According to the EPA, a variety of past industrial and commercial activities are believed to have caused ground water contamination.

Officials say they've confirmed elevated levels of contaminants in 11 public water supply wells in the area that have been shut off for more than a decade. Now, all of these sites are eligible for federal cleanup dollars.

Some local residents say they are concerned for their health.

"We know that volatile organic chemicals are a serious public health threat impacting liver, kidneys and also the neurological system," says Adrienne Esposito, of the Citizens Campaign for the Environment.

Esposito adds that the cleanup of the Superfund sites could take up to 10 years.