Area 40 is a 75-acre site northeast of the intersection of White Rock Road and Prairie City Road used by Aerojet Rocketdyne for their operations in the late 1960s and early 1970s. Designated a Superfund Site in 1983 by the U.S. Environmental Protection Agency (EPA), the area’s soil and groundwater are contaminated with rocket fuel materials. The chemical releases at Area 40 are limited to Area 40 and migrate to the west onto Aerojet Rocketdyne property. Both Area 40 and Aerojet Rocketdyne properties are controlled, non-irrigated land that are not accessible to the public. As such, the public is not currently at risk from exposure to chemicals in the soil or groundwater. Plans to clean up the area to remove any public health concerns are in progress by the EPA, the California Department of Toxic Substances Control (DTSC), and the Regional Water Quality Board.

Resources

• Area 40 Location Map
• Area 40 Project Schedule
• Area 40 Status Website
• Department of Toxic Substances Control EnviroStor website

Contact

Brett Leary
Hazardous Substances Engineer
Site Mitigation and Restoration Program
Department of Toxic Substances Control
California Environmental Protection Agency
brett.leary@dtsc.ca.gov
916-255-4988

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