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<br />EPA REG10N VIII -INSPECTION REPORT <br />Rocky Mountain Materials and Asphalt, Inc. <br />Red Canyon Quarry <br />DATE: IvIay 22, 2000 <br />PERSONNEL Darcy O'Connor, EPA - NPDES Enforcement <br />PRESENT: John Brink, EPA - 404 Enforcement <br />Andy Rosenau, United States Army Corps of Engineers <br />Van Truan, United States Army Corps of Engineers <br />Robert Stack, Red Canyon Quarry Limited Liability Company, Manager <br />Eric Bogren, Rocky Mountain Materials & Asphalt, Inc., Vice President <br />Tom Smith, Rocky Mountain Materials & Asphalt, Inc., Dir. Of Quarry <br />Operations <br />SCOPE: <br />This report summarizes a storm water inspection and subsequent file review of the Red <br />Canyon Quarry, an active quarry owned by Robert Stack and operated by Rocky Mountain <br />Materials & Asphalt, Inc. located in El Paso County, Colorado. This inspection was part of a <br />multi-media inspection including the U.S. Army Corps of Engineers (Corps) and the EPA 404 <br />group. <br />Rocky Mountain Materials & Asphalt, Inc. holds Colorado Discharge Permit System <br />(CDPS) permit number COG500809 for non-process storm water from the quarry. EPA received <br />a citizen complaint indicating that the quarry had discharged storm water in violation of its permit <br />and caused considerable sedimentation on property down gradient of the quarry. The purpose of <br />the inspection was to verify the compliance status of the quarry with its storm water permit. <br />Prior to the inspection, The Colorado Department ofPublic Health and Environment <br />(CDPHE) was notified in writing of EPA's intent to inspect the Red Canyon Quarry. The Corps <br />acted-t ^F"~ ~^*_^* * ~ ~pect thr faciht3z <br />BACKGROUND: <br />According to Robert Stack, the mining operation began at this location in approximately <br />1968. Mr. Stack purchased the site in 1973, but did not start active mining at this location until <br />approximately 1985. According to Mr. Stack, mining occurred at this facility from approximately <br />