orange valley regional ground water contamination

GIST PLACE (NEAR NORTH DAY STREET)

The site consists of a regional ground water contamination plume with no specific source identified. The site is located in the municipalities of Orange and West Orange, Essex County, New Jersey. During the course of a site investigation in West Orange, the EPA collected ground water samples from public water supply wells. The Orange Park and Gist Place municipal supply wells were found to contain tetrachloroethylene (PCE), trichloroethylene (TCE) and cis-1,2-dichloroethylene (cis-1,2-DCE), with PCE and TCE exceeding the EPA Maximum Contaminant Levels (MCLs). Water department data for the period of January to June 2009 confirms the constant presence of the contaminants in the wells. A third public supply well, known as the Brook Alley well, exhibits similar contamination. That well is no longer in use. The EPA site investigation identified some possible sources of contamination within the area of the contaminated wells, and a review of available databases and state files identified several other possible sources of contamination in the vicinity of the wells. The State of New Jersey referred this site to the EPA. The EPA proposed adding the site to its Superfund National Priorities List (NPL) in March 2012. The EPA received a letter from the state supporting placement of the site on the NPL. Site Responsibility: Initially, the site will be addressed through federal actions

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