US: Holcim (US) Inc., a major cement manufacturer and part of Switzerland's Holcim Ltd., has filed an application with the Montana Department of Environmental Quality for an operating permit to quarry gypsum on 21.4 hectares (53 acres) of private land about 15km southeast of Geyser in Judith Basin County. The gypsum will be used to make cement at the company's Trident Cement Plant near Three Forks, according to Herb Rolfes, supervisor of the Department of Environmental Quality's (DEQ) Operating Permit Section. Gypsum has been mined at the site in the past.
"It should be a relatively benign type of mine," Rolfes said. "There's no real issues as far as chemistry or water quality that will be a problem." DEQ officials are reviewing the application and will write a draft environmental assessment that will be put out for public comment in the second quarter of 2013. About 3.9 hectares (nine acres) would be disturbed over the next five years, with about 21.4 hectares (53 acres) being disturbed over the estimated 18-year life of the mine.
