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AL?a"Z Laboratories, Inc. <br />2773 Downhill Drive Steamboat Springs, CO 80487(800) 334-5493 <br /> <br />Kerr Coal Company ACZ Sample ID: L59598-02 <br />Project ID: Date Sampled: 10124106 08:05 <br />Sample ID: AP-2 Date Received: 10124106 <br /> Sample Matrix: Ground Water <br />Field Data <br /> <br />Conductivity (Field) Field Measurement 743 ms/cm 10/24/06 8:05 jm <br />pH (Field) Field Measurement 8.0 units 10/24/06 8:05 jm <br />Temperature (Field) Field Measurement 11.1 C 10/24/06 8:05 jm <br />Metals Analvsis <br />' - i- _? ' I _ <br />. a5:c'gat;, .r mm afev..--., - - - <br />Calcium, dissolved _ <br />_ <br />M200.7 ICP 59.8 mg/L 0.2 1 11/02/06 18:00 gme <br />Iron, dissolved M200.7 ICP 0.08 mg/L 0.02 0.05 11102106 18:00 Igme <br />Magnesium, dissolved M200.7 ICP 41.3 mg/L 0.2 1 11/02/06 18:00 Igme <br />Manganese, dissolved M200.7 ICP 0.292 mg/L 0.005 0.03 11/02/06 18:00 gme <br />I <br />Potassium, dissolved M200.7 ICP 1.9 mg/L 0.3 1 11/02/06 18:00 gme <br />Sodium, dissolved M200.7 ICP 36.3 mg/L 0.3 1 11/02/06 18:00 Igme <br />Wet Chemistry <br />° <br /> MEM M <br />.. <br />Alkalinity as CaCO3 SM2320B - Titration ` <br />Bicarbonate as 320 mg/L 2 20 11/06/06 0:00 ct <br />CaCO3 <br />Carbonate as CaCO3 U mg/L 2 20 11/06/06 0:00 ct <br />Hydroxide as CaCO3 U mg/L 2 20 11/06/06 0:00 ct <br />Total Alkalinity 320 mg/L 2 20 11/06/06 0:00 ct <br />Cation-Anion Balance Calculation <br />33 <br />10 <br />l <br />Cation-Anion Balance 3.2 % : <br />11/23/06 ca <br />c <br />Sum of Anions 7.5 meq/L 0.1 0.5 11123/06 10:33 calc <br />Sum of Cations 8.0 meq/L 0.1 0.5 11/23/06 10:33 calc <br />Chloride M325.2 - Colorimetric 9 mg/L 1 5 11/02/06 19:51 pjb <br />Hardness as CaCO3 SM2340B - Calculation 319 mg/L 1 7 11/23/06 10:33 calc <br />Lab Filtration SM 3030 B 10/25/06 11:37 Izg/mis <br />Lab Filtration & SM 3030 B 10126/06 9:53 MIS <br />Acidification <br />Nitrate as N, dissolved <br />Calculation: N03NO2 minus NO2 <br />0.05 <br />B <br />mg/L <br />0.02 <br />0.1 <br />11/23/06 10:33 <br />calc <br />Nitrate/Nitrite as N, M353.2 - Automated Cadmium 0.07 B * mg/L 0.02 0.1 10/24/06 20:13 pjb <br />dissolved Reduction <br />Nitrite as N, dissolved . M353.2 -Automated Cadmium 0.02 B * - mglL 0.01 0.05 10/24/06 20:13 pjb <br /> Reduction <br />Residue, Filterable M160.1 - Gravimetric 370 mg/L 10 20 10/31/06 10:09 Icp <br />(TDS) @180C I <br />Sodium Absorption USGS - 11738-78 0.89 0.03 0.15 11/23/06 10:33 I calc <br />Ratio in Water <br />Sulfate SM4500 S04-D 40 B mg/L 10 50 11/10/06 11:36 Icp <br />TDS (calculated) Calculation 381 mg/L 10 50 11/23/06 10:33 calc <br />TDS (ratio - Calculation 0.97 11/23/06 10:33 calc <br />measured/calculated) <br />REPIN.02.06.05.01 ` Please refer to Qualifier Reports for detail. <br />L59598: Page 3 of 1'7