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Acz <br />Acz Idrorurnries, Inc. <br />J0400 Dnwnhdl Drive <br />Stramboat Springs, CO 80487 <br />1800) 3J4-5493 <br />Kerr Coal Co. <br />P.O. Box 487 <br />Walden, CO 80480 <br />Jim Mossman <br />cc: Jay James <br />Lab Sample ID: L14753-03 <br />Client Sample 1D: AO-IA <br />Client Project ID: <br />ACZ Report ID: 2648669 <br />Date Sampled: 7/18/97 10:30 <br />Date Received: 7/2//97 <br />Date Reported: 8/6/97 <br />Sample Matrix: Ground Water <br />Field Data <br />Conductivity (Field) Field Meazurement 500 umhos/cm 7/18/97 jm <br />pH (Field) Field Meazurement 7.5 wits 7/I B/97 jm <br />Temperature (Field) Field Meazurement 13.0 C 7/16/97 jm <br />Metals Anal sis <br />Calcium, dissolved M200.71CP 52.9 mg/L 0.2 I 7l30N7 jaw <br />Iron, dissolved M200.71CP 0.15 mg/L 0.01 0.05 7/30/97 jaw <br />Magnesium. dissolvcd M200.71CP 25.3 mg/L 0.2 I 7/30/97 jaw <br />Manganese, dissolvcd M200.7 ICP 0.015 B mg/L 0.005 0.03 7/30/97 jaw <br />Potazsium, dissolved M200.71CP 5.4 mg/L 0.3 1 7!30/97 jaw <br />Sodium. dissolved M200.71CP 57.5 mg/L 0.3 1 7/30/97 jaw <br />Wet Chemist <br />Alkalinity az CaC03 M2320B <br />Bicarbonate az CaCOJ 251 mg/L 2 10 724/97 jb <br />Carbonate az CaC03 U mg/L 2 10 724/97 ~ jb <br />Hydroxide az CaC03 U mg/L 2 10 724P97 jb <br />Total Alkalinity 251 mg/L 2 10 724/97 jb <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance 3.9 % 8/6/97 talc <br />Sum of Anions 6.84 meq/l- 0.01 0.05 8/6/97 talc <br />Sum of Cations 7.40 meq/l. 0.01 0.05 8/6N7 talc <br />Chloride M325.2 - Colorimetric (RFA) S mg/L 1 S 725/97 jb <br />Hardness az CaC03 Calculaion baud on dissolved Ca & Mg 236 mg/L 1 7 8/6/97 talc <br />Lab Filration ••• 721/97 rd <br />Lab Filtration & Acidification •'• 721/97 rd <br />Nitrate az N, dissolved M353.2 -Automated Cadmium Reduction U mg/L 0.02 0.1 723/97 jb <br />NitrateMitrite az N, dissolved M35J.2 - Automated Cadmium Reduction U mg/L 0.02 0.1 723/97 jb <br />Nitrite az N, dissolved M353.2 -Automated Cadmitun Reduction U mg/L 0.01 0.05 723/97 jb <br />Residue. Filterable (TDS)Q180C M160.1-Gnvimetric 480 mg/L 10 20 724/97 ac <br />Sodium Absorption Ratio in Water USGS -11738-78 1.65 0.03 0.15 8/6/97 talc <br />Sulfate M375.3-Gravimeuic 60 mg/L 10 20 725/97 ac <br />TDS (calculated) Calculation 377 mg/L 10 50 8/6/97 talc <br />TDS (ratio - meazured/calculated) Calculation 1.27 8/6197 talc <br />• U =Analyze was analyzed for but not detected at the indicated MDL <br />B =Analyze concentration detected at a value between MDL and PQL ~ ~ <br />PQL =Practical Quan[intion Limit <br />Via President of Openuions: Ralph Po n <br />REPINtOt.03.95.07 Page 1 of 7 <br />