Superfund Site Profile
The Peninsula Boulevard Groundwater Plume site is a tetrachloroethylene (PCE or perc) groundwater plume in Hewlett, New York. Its source is unknown. The groundwater flows toward the northwest, in the direction of the Long Island American Water Plant 5 Well Field, a source of drinking water. Since April 1991, the Plant 5 well water has been treated by a packed tower aeration system, also known as an air stripper. Remedial design for the site’s groundwater treatment system is underway. EPA is also assessing the site’s source areas.
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EPA is in the process of updating the site profile page with additional current information. When the updates are complete, we will remove this message. Until then, we thank you for your patience and consideration in this matter.