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<br />COMMERCIAL TESTING & ENGINEERING CO. <br />GENERAL OFFICES: 1919 SOUTH HIGHLAND AVE.. SUI1E 2148. LOMOARD. IWNOIS 60148 • TEl 639-953-9300 FAX:630-853-9308 <br />SINCE X908 r®~e <br />rr <br />September 22, 1998 <br />TWENTYMILE COAL COMPANY <br />29515 Routt County Rd. 27 <br />Oak Creek CO 80467 <br />Kind of Sample Water <br />G5 Membar of the SGS Gmup (SOC~k[k Gknkrale tle SurveiWnoel <br />19D8-1999 90 Years Commit:'d To Excellence <br />SAMPLE ID: 39 POND A <br />SAMPLE DATE: 09/09/98 <br />SAMPLE TIME: 08:15 <br />Date Received September 10, 1998 <br />Analysis report no <br />PARAMETER <br />Conductivity <br />Settleable Solids <br />Total Dissolved <br />Solids, TDS <br />Total Suspended <br />Solids, TSS <br />PH <br />Hardness as <br />CaC03 <br />Method Reference: <br />72-390321 <br />ADORESSALL CORRESPONDENCETO: <br />4665 PARIS STREET <br />SUffE &200 <br />DENVER, CO 60239 <br />TEL 1303) 373-4772 <br />FAX; (303) 373-4797 <br /> DETECTION ANALYZED <br />RESIILTS [TNITS METHOD LIMIT DATE/TIME ANALi <br />3330 umhos/cm SM2510-B O.I 09- 10-199BJ1330 iC. <br /><0.1 ml/L/h SM2540-B 0.1 09- 10-1998/1230 {i <br />4180 mg/L SM2540-C 10 09- 11-1998/1100 iC= <br />5 mq/L SM2540-D 5 04- 11-1998/1100 t._ <br />7.53 s.u. SM4500Ei-B 0.01 09- 10-1998/1300 :C. <br />2319 mg/L SM2340-B 1 09-15-1998/1000 r_ <br />"Standard Methods for the Examination of water and Wastewater," <br />18th Edition, 1992; APt{A-AWWA-WEF. <br />Respectlully submitted. <br />COMMERCIAL TESTING 8 ENGINEERING CO. <br />~~ MEMBEF <br />Denver Laboratory <br />OVER 40 BRANCH LABORATORIES STRATEGICALLY LOCATED IN PRINCIPAL COAL MINING AREAS. TIDEWATER AND GREAT LANES PORTS, AND RIVER LOADING FACILITIES <br />F-<' ' - <br />