Since 1999, the EPA has overseen cleanup of the site. Plans for a final, extensive cleanup were drawn in 2008 and by 2013 the process is expected to be completed. The estimated costs are expected to reach $9.3 million.
Under the agreement, the five companies will execute the plan. Contaminated soil will be excavated and deeper soil and groundwater will be contained with cement using a technique to prevent it from spreading to other soil and water sources. Contaminated sediment and water within the Patroon Creek will also be removed.
The EPA will continue to oversee all cleanup efforts until the job is completed next year.