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<br />COMMERCIAL TESTING & ENGINEERING CO. _•_ <br />GENERAL OFFICES: 1919 SOUTH HIGHLAND AVE.. SUfiE 210-8, LOMBMD, IWNOIS 60169 • TEL 930-953-9300 FAX 630-953-9306 <br />SINCE '909 <br />G5 Member of the SGS Gmup ISociAtA GMAr61e tle Surveillance) <br />1908-1998 90 Years Committzd To Excellence <br />ADDRESS ALLCORRESPONDENCETU <br />4665 PARIS STREET <br />SUfTE &200 <br />DENVER. CO 80239 <br />TEL (303) 373-7772 <br />FAX: (303) 373-7791 <br />September 22, 1998 <br />TWENTYMILE COAL COMPANY <br />29515 Routt County Rd. 27 <br />Oak Creek CO 80467 <br />SAMPLE ID: 84 POND D <br />SAMPLE DATE: 09/09/98 <br />SAMPLE TIME: 09:50 <br />Kind of Sample Water <br />Date Received September 10, 1998 <br />Analysis report no. 72-390322 <br /> DETECTION ANALYZED <br />PARAMETER RESTJLTS IINITS METHOD LIMIT DATE/TIME ANALYST <br />Calcium, Ca (D) 444 mg/L EPA 200. 7 0.1 09-16-1998/0645 JE <br />Copper, Cu (D) c0.005 mg/L EPA 200. 7 0.005 09-16-1998/0900 JE <br />Iron, Fe(TR) 0.06 mg/L EPA 200. 7 0.01 09-16-1998/0800 JE <br />Magnesium, Mg (D) 374 mg/L EPA 200. 7 0.1 09-16-1998/0645 JE <br />Manganese, Mn(TR) 0.129 mg/L EPA 200. 7 0.005 09-16-1998/0800 JE <br />Silver, Ag(D) <0.005 mg/L EPA 200. 7 0.005 09-16-1998/0900 JE <br />D - Dissolved <br />TR - Total Recoverable <br />Method Reference: "Methods for the Determination of Metals in Environmental <br />Samples," EPA-600/4-91/010, June 1991. <br />Respectlully submittetl. <br />COMMERCIAL TESTING 8 ENGINEERING CO. <br />_ M E M B E R <br />~_' ~~ <br />Denver Laboratory <br />OVER 60 BRANCH LABORATORIES STRATEGICALLY LOCATED IN PRINCIPAL COAL MINING AREAS, TIDEWATER AND GREAT LAKES PORTS, AND RIVER LOADING FACILITIES <br />_~ <br />