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Site 75

Image of Installation Restoration Program Site 75.

IRP Site 75 - KAYO-SB Ag Well

In September 2004 the groundwater collected from an agricultural well, KAYO-SB, was found to be contaminated with chlorinated hydrocarbons.  The access to this well was immediately terminated, and the well was subsequently decommissioned in November 2006.  A total of ten groundwater monitoring wells were installed and sampled in 2011.  Based on the groundwater testing results from these wells, the source of the contamination is most likely one or multiple commercial industrial sites located east of the station.  Additional groundwater sampling was conducted in 2017 to pinpoint the off-base source of the contamination.  The Navy is also working with regulatory agencies to enhance their investigation and cleanup of civilian industrial sites east of the base.

Quick Facts
Size Unknown
Location (see map) Eastern boundary of station, approximately 1,300 feet south of Bolsa Avenue
Contamination Source Unknown; likely off-site commercial industrial operations
Potential Waste Types  Chlorinated solvents
Status Site Inspection
Est. Response Complete Unknown

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