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ACZ Laboratories, Inc. <br />Kerr Coal Company ACZ Sample ID: L69087-06 <br />Project ID: Date Sampled: <br />Sample ID: AP-1-1,2&3 Date Received: 05108108 <br />Sample Matrix: Ground Water <br />Field Data <br />Parameter <br />Method <br />EPA <br />R <br />.' <br />Date A <br />nalyst <br />Conductivity (Field) Field Measurement 600 ms/cm 05/07/08 8:30 jm <br />pH (Field) Field Measurement 8.1 units 05107/08 8:30 jm <br />Temperature (Field) Field Measurement 10.0 C 05/07/08 8:30 jm <br />Metals Analysis <br /> •. <br /> <br />Calcium, dissolved M200.7 ICP 40.1 mg/L 0.2 1 05/12/08 20:03 erf <br />Iron, dissolved M200.7 ICP 0.14 mg/L 0.02 0.05 05/12108 20:03 erf <br />Magnesium, dissolved M200.7 ICP 31.5 mg/L 0.2 1 05/12/08 20:03 erf <br />Manganese, dissolved M200.7 ICP 0.420 mg/L 0.005 0.03 05/12/08 20:03 erf <br />Potassium, dissolved M200.7 ICP 0.7 B mg/L 0.3 2 05112/08 20:03 erf <br />Sodium, dissolved M200.7 ICP 16.8 mg/L 0.3 2 05/12/08 20:03 erf <br />Wet Chemistrv <br />Alkalinity as CaCO3 SM2320B - Titration <br />Bicarbonate as 266 <br />CaCO3 <br />Carbonate as CaC03 <br />Hydroxide as CaC03 <br />Total Alkalinity 266 <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance -6.2 <br />Sum of Anions 6.0 <br />Sum of Cations 5.3 <br />Chloride 325.2 / SM45000I-E 4 <br />Hardness as CaC03 SM2340B - Calculation 230 <br />Lab Filtration SM 3030 B <br />Lab Filtration 8 SM 3030 B <br />Acidification <br />Nitrate as N, dissolved Calculation: N03NO2 minus N02 0.04 <br />Nitrate/Nitrite as N, M353.2 - Automated Cadmium 0.04 <br />dissolved Reduction <br />Nitrite as N, dissolved M353.2 - Automated Cadmium <br /> Reduction <br />Residue, Filterable 160.1 / SM2540C 290 <br />(TDS) @180C <br />Sodium Absorption USGS - 11738-78 0.48 <br />Ratio in Water <br />Sulfate SM4500 S04-D 30 <br />TDS (calculated) Calculation 283 <br />TDS (ratio - Calculation 1.02 <br />measured/calculated ) <br /> mg/L 2 20 05/09/08 0:00 ear <br />U mg/L 2 20 05109108 0:00 ear <br />U mg/L 2 20 05/09/08 0:00 ear <br /> mg/L 2 20 05/09/08 0:00 ear <br /> % 05/20/0813:01 calc <br /> meq/L 0.1 0.5 05120/0813:01 calc <br /> meq/L 0.1 0.5 05/20/0813:01 calc <br />a mg/L 1 5 05116/0818:51 pjb <br /> mg/L 1 7 05/20/0813:01 talc <br />' 05/09/08 8:20 WPI <br />• 05/09/08 8:51 WPI <br />B mg/L 0.02 0.1 05/20/0813:01 talc <br />B ' mg/L 0.02 0.1 0510810818:18 pjb <br />U mg/L 0.01 0.05 05/08/0818:18 pjb <br /> mg/L 10 20 05/12/0810:21 gkj <br /> 0.03 0.15 05/20/0813:01 talc <br />B mg/L 10 50 05/16/0811:43 jlf <br /> mg/L 10 50 05/20/0813:01 calc <br /> 05/20/0813:01 calc <br />iREPIN.02.06.05.01 • Please refer to Qualifier Reports for details. <br />Page 7 of 16