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ADZI-aboratories, Inc. <br />2773 Downhill Drive Steamboat Springs, CO 80487(800) 334-5493 <br />Kerr Coal Company <br />Project ID: <br />Sample ID: 79-2 <br />ACZ Sample ID: L62082-04 <br />Date Sampled: 04118107 11:00 <br />Date Received: 04118107 <br />Sample Matrix: Ground Water <br />Metals Analysis <br /> El m= M71= = <br />Calcium, dissolved M200.7 ICP 11.8 mg/L 0.2 1 04/24/07 21:04 djt <br />Iron, dissolved M200.7 ICP U mg/L 0.02 0.05 04/25/07 17:55 djt <br />Magnesium, dissolved M200.7 ICP 1.4 mg/L 0.2 1 04/24/07 21:04 djt <br />Manganese, dissolved M200.7 ICP 0.014 B mg/L 0.005 0.03 04/24/07 21:04 djt <br />Potassium, dissolved M200.7 ICP 2.9 mg/L 0.3 2 04/24/07 21:04 djt <br />Sodium, dissolved M200.7 ICP 639 mg/L 2 50 04/24/07 21:04 djt <br />Wet Chemistry <br /> <br />Alkalinity as Ca603 SM2320B - Titration <br />Bicarbonate as 384 mg/L 2 20 04125/07 0:00 'wpa <br />CaC03 <br />Carbonate as CaC03 27 mg/L 2 20 04125/07 0:00 wpa <br />Hydroxide as CaC03 U mg/L 2 20 04/25/07 0:00 wpa <br />Total Alkalinity 411 mg/L 2 20 04/25/07 0:00 wpa <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance -1.5 % 04/27/07 0:00 calc <br />Sum of Anions 29.8 meq/L 0.1 0.5 04127107 0:00 calc <br />Sum of Cations 28.9 meq/L 0.1 0.5 04/27/07 0:00 calc <br />Chloride M325.2 - Colorimetric 770 mg/L 20 100 04/24/07 13:55 jag <br />Hardness as CaC03 SM2340B - Calculation 35 mg/L 1 7 04/27/07 0:00 icalc <br />Lab Filtration SM 3030 B 04/19/07 10:35 mis <br /> <br />Lab Filtration & <br />SM 3030 B <br />04/19/07 12:05 i <br />mis <br />Acidification <br />Nitrate as N, dissolved Calculation: N03N02 minus N02 U mg/L 0.02 0.1 04/27/07 0:00 Icalc <br />Nitrate/Nitrite as N, M353.2 - Automated Cadmium U mg/L 0.02 0.1 04/18/07 21:13 pjb <br />dissolved Reduction <br />Nitrite as N, dissolved M353.2 - Automated Cadmium U * mg/L 0.01 0.05 04/18/07 21:13 pjb <br /> Reduction <br />Residue, Filterable M160.1 - Gravimetric 1720 mg/L 10 20 04/20/07 9:02 Icp <br />(TDS) @180C <br />Sodium Absorption USGS - 11738-78 47.40 0.03 0.15 04/27/07 0:00 calc <br />Ratio in Water <br />Sulfate SM4500 S04-D U mg/L 10 50 04/23/07 9:24 aeh/wpa <br />TDS (calculated) Calculation 1680 mg/L 10 50 04/27/07 0:00 calc <br />TDS (ratio - Calculation 1.02 04/27/07 0:00 calc <br />measured/calculated) <br />REPIN.02.06.05.01 * Please refer to Qualifier Reports for detail, <br />L62082: Page 6 of 17