Federal Contractor Misconduct Database (FCMD)
Cleanup of Groundwater Contamination at San Gabriel Valley
The U.S Environmental Protection Agency (EPA) reached a settlement with Northrop Grumman Space & Mission Systems Corporation, two related entities, and 43 cash-out parties that requires Northrop Grumman to clean up groundwater contamination at the Puente Valley Operable Unit of the San Gabriel Valley Superfund Site, Area 4, in Southern California. Northrop Grumman, on behalf of all of the settling defendants, will spend an estimated $21 million to build a groundwater cleanup system that uses wells to pump out contaminated groundwater, preventing it from further migration. Northrop Grumman will also install water conveyance pipelines and construct a treatment plant to remove Volatile Organic Compound (VOC) contaminants from the groundwater. Northrop Grumman has already spent over $10 million implementing the intermediate zone remedial action in compliance with an order EPA issued on March 21, 2002. The settlement also provides for reimbursement of $465,420.90 to EPA, and $90,000 to the California Department of Toxic Substances Control for past costs.
- Misconduct Type
- Enforcement Agency
- Contracting Party
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- Date of Announcement