Author: Robert Graves

Chevron Mining Inc., Questa Mine (Formerly Molycorp Mine)

Chevron Mining Inc., Questa Mine (Formerly Molycorp Mine)

Site History: Chevron Mining Inc. site facilities (Site) includes the underground workings, open pit, waste rock, tailings impoundments, and the tailings pipeline. Releases of hazardous substances, including arsenic, cadmium, chromium, cobalt, lead, manganese, and zinc, from...

Media Releases

Media Releases

Current ONRT and Federal Agencies Release Final Restoration Plan for Environmental Damage at Chevron Mining Inc., Questa Site (May 21, 2018)  Public Meeting Wednesday, Nov. 29 Seeking Public Comment on Draft Restoration Plan for...

White Sands Test Facility

White Sands Test Facility

Site History: The National Aeronautics and Space Administration (NASA) White Sands Test Facility (WSTF, “Site”) has supported testing of space flight equipment and hazardous materials for nearly 50 years. Past activities included developing, qualifying,...

Sparton Technology Site

Sparton Technology Site

Site History: Sparton Technology, Inc., produced electronic components at this site between 1961 and 1994. Releases of substances such as acetone, Methylene chloride, and trichloroethylene resulted in contaminated groundwater. The New Mexico Environment Department...

South Valley Site

South Valley Site

Site History: Industrial activities during the 1950s and 1960s resulted in contaminated soil and groundwater due to chlorinated solvents and other substances, leading to the closure of 20 private and two municipal water supply...

SOHIO L-Bar Facility

SOHIO L-Bar Facility

Site History: Releases of hazardous substances including nickel, selenium, and uranium from the SOHIO tailings facility resulted in the contamination of groundwater. The U.S. Department of Energy is monitoring natural recovery of the groundwater...

Rio Algom Quivira Mill and Mines

Rio Algom Quivira Mill and Mines

Site History: The Rio Algom mill and mines (Site) owner is Rio Algom Mining LLC, a wholly owned subsidiary of BHP Billiton. The Site includes underground workings and associated facilities at nine mines and...

Los Alamos National Laboratory

Los Alamos National Laboratory

Site History: Scientific research began at the Los Alamos National Laboratory (LANL, Site) in March 1943 with the United States government’s effort to develop and test nuclear weapons. Nuclear-weapons research included the handling of,...

Gold King Mine and Bonita Peak Mining District

Gold King Mine and Bonita Peak Mining District

Site History: On August 5, 2015, EPA’s Superfund Removal program conducted an investigation and assessment of the Gold King Mine near Silverton, Colorado. While excavating above the old adit, pressurized water began leaking above...

Chino, Cobre, and Tyrone Mines

Chino, Cobre, and Tyrone Mines

Site History: The Chino, Cobre and Tyrone mine facilities are open-pit and underground copper and iron mining, beneficiation, and processing facilities owned and operated by Freeport-McMoRan Corporation. Hazardous substances released from the mine facilities...