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May 23, 2005 <br />Twentymile Coal Company <br />29515 Routt County Road 27 <br />Oak Creek, CO 80467 <br />USA <br />Client Sample ID: 10 NM Date Sampled : 05-10-2005 <br />Date Received: 05/11/2005 Sample Taken By : Brian Watterson <br />Matrix: Water Sample Type ; GRAB <br />Time Sampled : 10:00 <br />SGS Sample ID: 072-13844-001 <br />ANALYZED <br />ANALYTE RESULT METHOD LOD DATEITIME ANALYST <br />alkalinity, Bicarbonate 520 mg/L HC03 SM2320 B 1 05/12/2005 1130 AS <br />alkalinity, Carbonate <1 mg/L C03 SM2320 B 1 05/12/2005 1130 AS <br />conductivity 3300 umhoslcm SM2510 B 1 05111/2005 1305 HP <br />vlercury, Total Recoverable <0.2 ug/L EPA245.1 0.2 05/18/2005 0800 EH <br />calcium, Dissolved 220 mg/L EPA200.7 0.01 05!1912005 1500 JS <br />Magnesium, Dissolved 140 mg/L EPA200.7 0.01 05/19/2005 1500 JS <br />indium, Dissolved 530 mg/L EPA200.7 0.01 05/19/2005 1500 JS <br />ielenium, Total Recoverable 9.0 uglL EPA200.9 2 05/20/2005 1030 JS <br />silver, Total Recoverable <0.4 ug/L EPA200.9 0.4 05/20/2005 1030 JS <br />cadmium, Total Recoverable <2 uglL EPA200.7 2 05/19/2005 0800 JS <br />ron, Total Recoverable 130 ug/L EPA200.7 10 05/19/2005 0800 JS <br />Manganese, Total Recoverable 57 ug/L EPA200.7 5 05/19/2005 0800 JS <br />Molybdenum, Total Recoverable <50 ug/L EPA200.7 50 05/19/2005 0800 JS <br />?inc, Total Recoverable <5 ug/L EPA200.i 5 05/19/2005 0800 JS <br />Nitrogen, Free Ammonia <0.05 mglL Calc 0.05 05/12/2005 1800 DR <br />Nitrogen, Nitrite <0.02 mg/L EPA354.1 0.02 05/11/2005 1445 AS <br />Nitrogen, Nitrate/Nitrite <0.02 mg/L EPA300.0 0.02 05111/2005 1910 AS <br />Nitrogen, Nitrate <0.02 mglL EPA300.0 0.02 05/11/2005 1910 AS <br />~H 7.95 s.u. SM4500-H B 0.01 05111/2005 1345 HP <br />phosphorus, Ortho 0.22 mglL SM4500-P E 0.01 05/11/2005 1500 AS <br />Sodium Absorption Ratio 6.9 Calc 0.01 <br />Solids, Total Dissolved 2800 mglL SM2540 C 5 05/11/2005 1450 HP <br />Solids, Total Suspended <5 mg/L SM2540 D 5 05/11/2005 1335 NP <br />Sulfate 1700 mglL EPA300.0 5 05/12/2005 1800 AS <br />MEMBER Respectfully submitted <br />® SGS NORTH AMERICA INC. <br />Page 1 of 2 De er Laboratory <br />S6S North America Inc. + Minerals Services Division <br />T,~S Member pf the SGS Group <br />TERMS AND CONDITIONS ON REVERSE <br />