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i <br />Laboratories, Inc. <br />2773 <br />Downhill Drive Steamboat Springs, CO 80487(800) 334-5493 • `- ` <br />Kerr Coal Company ACZ Sample ID: L59598-07 <br />Project ID: Date Sampled: 10124106 11:00 <br />Sample ID: 79-2 Date Received: 10124106 <br /> Sample Matrix: Ground Water <br />Field Data <br /> <br />Conductivity (Field) Field Measurement 1942 ms/cm 10124/06 11:00 jm <br />pH (Field) Field Measurement 8.7 units 10/24/06 11:00 jm <br />Temperature (Field) Field Measurement 9.5 C 10/24/06 11:00 jm <br />Metals Analysis j <br />Calcium, dissolved M200.7 ICP 12.4 mg/L 0.2 1 11/02/06 18:24 gme <br />Iron, dissolved M200.7 ICP 0.03 B mg/L 0.02 0.05 11/02106 18:24 gme <br />Magnesium, dissolved M200.7 ICP 1.8 mg/L 0.2 1 11/02/06 18:24 gme <br />Manganese, dissolved M200.7 ICP 0.035 mg/L 0.005 0.03 11/02/06 18:24 gme <br />Potassium, dissolved M200.7 ICP 3.1 mg/L 0.3 1 11/02/06 18:24 gme <br />Sodium, dissolved M200.7 ICP 605 rl 2 50 11/02/06 18:24 gme <br />Wet Chemistry <br />, <br /> <br />Alkalinity as CaCO3 SM2320B - Titration <br />Bicarbonate as 381 mg/L 2 20 11/06/06 0:00 ct <br />CaCO3 <br />Carbonate as CaCO3 29 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 410 mg/L 2 20 11/06/06 0:00 ct <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance -8.5 % 11/23/06 10:33 calc <br />Sum of Anions 32.6 rl 0.1 0.5 11/23/06 10:33 calc <br />Sum of Cations 27.5 meq/L 0.1 0.5 11/23/06 10:33 calc <br />Chloride M325.2 - Colorimetric 870 * mg/L 30 200 11/02/06 20:32 pjb <br />Hardness as CaCO3 SM2340B - Calculation 38 mg/L 1 7 11/23/06 10:33 calc <br />Lab Filtration SM 3030 B 10/25/06 11:46 Izg/mis <br />Lab Filtration & SM 3030 B 10/26/06 10:10 mis <br />Acidification <br />Nitrate as N, dissolved Calculation: N03NO2 minus NO2 0.02 B mg/L 0.02 0.1 11/23/06 10:33 calc <br />Nitrate/Nitrite as N, M353.2 - Automated Cadmium 0.02 B mg/L 0.02 0.1 10/24/06 20:26 pjb <br />dissolved Reduction <br />Nitrite as N, dissolved M353.2 - Automated Cadmium U mg/L 0.01 0.05 10/24/06 20:26 pjb <br /> Reduction <br />Residue, Filterable M160.1 - Gravimetric 1660 mg/L 10 20 10/31/06 10:17 1 Icp <br />(TDS) @180C <br />Sodium Absorption USGS - 11738-78 43.00 0.03 0.15 11/23106 10:33 calc <br />Ratio in Water <br />Sulfate SM4500 S04-D U mg/L 10 50 11/10/06 11:51 Icp <br />TDS (calculated) Calculation 1750 mg/L 10 50 11/23106 10:33 j calc <br />TDS (ratio - Calculation 0.95 11/23/06 10:33 ' calc <br />measured/calculated) <br />REPIN.02.06.05.01 * Please refer to Qualifier Reports for detail: <br />i <br />L59598: Page 8 of 17