United States Nuclear Regulatory Commission - Protecting People and the Environment

Region IV Agreement State Complex Materials Sites Undergoing Decommissioning

Of the 50 complex materials sites that are currently undergoing decommissioning in the United States, 11 sites in Region IV are regulated by the States of California, Kansas, Oregon, and Texas, which the U.S. Nuclear Regulatory Commission (NRC) has designated as Agreement States. The map to the right illustrates the relative locations of these sites, and the tables below provide links to their descriptions, which include site status summaries, any major technical or regulatory issues, and the estimated date for closure of each site. These site descriptions were provided by the respective Agreement States, and the NRC makes no claim regarding the validity of that information. Please contact us if you have any questions or comments.

CA

Name Location
Chevron Mining, Inc. (formerly Molycorp, Inc.) Mountain Pass, CA
Halaco Oxnard, CA
Isotope Specialties Burbank, CA
Magnesium Alloy Products Compton, CA
The Boeing Company Simi Valley, CA

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KS

Name Location
Beta Chem Laboratory Lenexa, KS

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OR

Name Location
PCC Structurals, Inc. Milwaukie, OR
TDY Industries (dba Wah Chang) Albany, OR

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TX

Name Location
ASARCO (State of Texas) Houston, TX
Iso-Tex Diagnostics Houston, TX
Pearland-Manvel Landfill Pearland, TX

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Page Last Reviewed/Updated Wednesday, November 12, 2014