Your search American Mining Congress, United Nuclear Corporation,homestake Mining Company, Quivira Mining Company, Kerr-mcgeecorporation, Sierra Club, the Environmental Defense Fund,inc., National Resources Defense Council, Southwest Researchand Information Center, and Jean Slattery, Petitioners, v. Lee M. Thomas, Administrator, Environmental Protectionagency, and Environmental Protection Agency, Respondents.state of Colorado, Intervenor did not match any document.