Superfund settlment in San Gabriel Valley

Northrop Grumman has agreed to pay $21 million to clean volatile organics from groundwater under the Southern California cities of Industry, La Puente and Walnut, the Environmental Protection Agency has announced. The settlement was brokered by the EPA as part of a larger Superfund project.

From the press release:

Northrop Grumman, representing 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. The treated water will be used for drinking water supply, water reclamation projects, or discharged to surface water.