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<br />~~ COMMERCIAL TESTING & ENGINEERING CO. <br />GENERAL OFFICES: 1919 SOUTH HIGHLAND AVE„ SUITE 210-B, LOMBARO. ILLINOIS 60148 • TEL: 630-963-9300 FAX: 630-953-9306 <br />~E ,9p6® ~®~ SGS <br />v Member o1 the SGS Group (SocietA G2nerale de Surveillance) <br />Committed 70 Excellence <br />' May 23, 2001 <br />TWENTYMILE COAL COMPANY <br />~- -29515 ROUTT COUNTY ROAD 27 <br />Oak Creek~CO 80467 <br />Kind of Sample WATER <br />Sample taken at EMPIRE <br />Sample taken by TWENTYMILE COAL COMPANY <br />SAMPLE ID: SD <br />SAMPLE DATE: 05/02/01 <br />SAMPLE TIME: 11:32 <br />FIELD TEMP: 14.0 <br />FIELD pH:7.52 <br />FIELD EC: 14.91 <br />ADDRESS ALL CORRESPONDENCE TO: <br />4665 PARIS STREET <br />SUITE B-200 <br />DENVER, CO 60239 <br />TEL: (303) 373-4772 <br />FAX: (303) 373-4791 <br />www.comteco.com <br />Date Received May 3, 2001 <br />Analysis report no. 72-451127 <br /> DETECTION ANALYZED <br />PARAMETER RESULTS UNITS METHOD LIMIT DATE/TIME ANALYST <br />Total Suspended <br />Solids, TSS <5 mg/L SM2540-D 5 OS-04-2001/1015 JN <br /> <br />Fe (D) 250 ug/L EPA 200.7 10 - 05-23-2001/1230 JE <br />Zinc, Zn(D) 12 ug/L EPA 200.7 1 OS-23-2001/1230 JE <br />(D) = Dissolved <br />Method Reference: "Standard Methods for the Examination of Water and Wastewater," <br />18th Edition, 1992; APHA-AWWA-WEF- <br />"Methods for the Determination of Metals-in Environmental Samples," <br />EPA/600/4-91/010, June 1991. <br />Respectfully submitted, <br />. <br />i COMMERCIAL TESTING 8 ENGINEERING CO. <br /> <br />~_J MEMBER <br />Denver Laboratory <br />OVER 40 BRANCH LABORATORIES STRATEGICALLY LOCATED IN PRINCIPAI- COAL MINING AREAS, TIDEWATER AND GREAT LAKES PORTS, AND RNrER LOADING FACILITIES <br />d66 <br />higinal Watermarked For Your Protection TERNS AND CONDRION$ ON REVERSE <br />