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1 <br />ACZ Laboratories, Inc. <br />2773 Downhill Driva Steamboat Sodnas. CO 80487/800) 334-5493 <br />Kerr Coal Company ACZ Sample ID: L42014-04 <br />Project ID: Date Sampled: 07/13/03 14:35 <br />Sample ID: AP-2 Date Received: 07/14/03 <br /> Sample Matrix: Ground Water <br />Field Dala <br />Conductivity (Field) Field Measurement <br />' pH (Field) Field Measurement <br />Temperature (Field) Field Measurement <br />600 umhos/cm 07/13/0314:35 jcm <br />8.1 units 07/13/0314:35 jcm <br />16.0 C 07/13/0314:35 jcm <br />Metals Analysis <br /> ' <br />Calcium, dissolved M200.71CP 53.8 mg/L 0.2 1 07117/039:24 scp <br />Iron, dissolved M200.7 ICP 0.22 mg/L 0.01 0.05 07/17/03 9:24 scp <br />Magnesium, dissolved M200.71CP 36.5 mg/L 0.2 1 07/17/039:24 scp <br />Manganese, dissolved M200.71CP 0.471 mg/L 0.005 0.03 07/17/039:24 scp <br />Potassium, dissolved M200.71CP 1.8 mg/L 0.3 1 07/17/039:24 scp <br />Sodium, dissolved M200.71CP 29.6 mg/L 0.3 1 07/17/039:24 scp <br />Wet Chemistry <br /> <br />Alkalinity as CaC03 SM2320B .Titration <br />Bicarbonate as 308 mg/L 2 10 07/23/03 0:00 mah <br />CaC03 <br />Carbonate as CaC03 U mg/L 2 10 07/23/03 0:00 mah <br />Hydroxide as CaC03 U mg/L 2 10 07/23/03 0:00 mah <br />Total Alkalinity 308 mg/L 2 10 07/23/03 0:00 mah <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance -2.1 % 07/30/03 0:00 talc <br />Sum of Anions 7.3 meq/L 0.1 0.5 07/30/03 0:00 talc <br />Sum of Cations 7.0 meq/L 0.1 0.5 07/30/03 0:00 talc <br />Chloride M325.2 - Colodmetdc 13 mg/L 1 5 07/29/03 19:51 kmc <br />Hardness as CaC03 SM2340B -Calculation 285 mg/L 1 7 07/30/03 0:00 talc <br />Lab Filtmtion SM 3030 B 07/14/03 12:40 dlm <br />Lab Filtration & SM 3030 8 07!16/03 10:18 bf <br />Acidification <br />Nitrate as N, dissolved Calculation: N03N02 minus N02 0.05 B mg/L 0.02 0.1 07/30/03 0:00 talc <br />Nitrate/Nitrite as N, M353.2 -Automated Cadmium 0.05 BH mg/L 0.02 0.1 07/16/03 18:56 kmc <br />dissolved Reduction <br />Nitrite as N, dissolved M353.2 -Automated Cadmium UH mg/L 0.01 0.05 07/16/03 18:56 kmc <br /> Reduction <br />Residue, Filterable M160.1 -Gravimetric 330 mg/L 10 20 07/18/03 19:21 jjc <br />(TDS) @180C <br />Sodium Absorption USGS - 11738-78 0.77 0.03 0.15 07/30103 0:00 talc <br />Ratio in Water <br />Sulfate M375.3-Gravimetric 40 B mg/L 10 50 07/28/0310:33 ct <br />TDS (calculated) Calculation 360 mg/L 10 50 07/30/030:00 talc <br />TDS (ratio - Calculation 0.92 07/30/03 0:00 talc <br />measured/calculated) <br />REPIN.01.11.00.01 'Please reler to Extended Quali/ier Reporf for detail. <br /> L42014: Page 6 of 12 <br />