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A13ZLaboratories, Inc." a <br />2773 Downhill Drive Steamboat Springs, CO 80487(800) 334-5493 <br />Kerr Coal Company ACZ Sample ID: L63744-05 <br />Project ID: Date Sampled: 07111107 11:40 <br />Sample ID: 79-3 Date Received: 07/11/07 <br />Sample Matrix: Ground Water <br />Field Data <br />? <br />Conductivity (Field) Field Measurement 900 ms/cm 07/11/07 11:40 jm <br />pH (Field) Field Measurement 7.9 units 07/11/07 11:40 jm <br />Temperature (Field) Field Measurement 10.0 C 07/11/07 11:40 jm <br />Metals Analysis <br /> <br /> <br />Calcium, dissolved <br />M200.7 ICP <br />60.1 <br />mg/L <br />0.2 <br />1 _ - <br />07/19/07 22:40 ? <br />wfg <br />Iron, dissolved M200.7 ICP 0.07 mg/L 0.02 0.05 07119/07 22:40 Wfg <br />Magnesium, dissolved M200.7 ICP 9.9 mg/L 0.2 1 07/19107 22:40 Wfg <br />Manganese, dissolved M200.7 ICP 0.071 mg/L 0.005 0.03 07/19/07 22:40 Wfg <br />Potassium, dissolved M200.7 ICP 22 mg/L 2 8 07121/07 1:42 djt <br />Sodium, dissolved M200.7 ICP 1490 mg/L 2 8 07/21/07 1:42 djt <br />Wet Chemistry <br />_ _ • ` _1A.^ T.-._. ?..._.-, .. _.?_ .... . ° ' .,_ _... . ' : c _. ... <br />Alkalinity as CaCO3 SM2320B - Titration <br />Bicarbonate as 300 mg/L 2 20 07/14/07 0:00 cas <br />CaCO3 <br />Carbonate as CaCO3 U mg/L 2 20 07/14/07 0:00 cas <br />Hydroxide as CaCO3 U mg/L 2 20 07/14/07 0:00 cas <br />Total Alkalinity 300 mg/L 2 20 07/14/07 0:00 cas <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance -0.3 % 08/06/07 0:00 caic <br />Sum of Anions 70.4 meq/L 0.1 0.5 08/06/07 0:00 calc <br />Sum of Cations 70.0 meq/L 0.1 0.5 08/06107 0:00 icalc <br />Chloride 325.2 / SM4500OI-E 2300 mg/L 100 500 07/17/07 10:02 am[/jag <br />Hardness as CaCO3 SM2340B - Calculation 191 mg/L 1 7 08/06/07 0:00 Icalc <br />Lab Filtration SM 3030 B 07/12/07 11:43 bjl <br />Lab Filtration & SM 3030 B 07/12/07 8:59 bjl <br />Acidification <br />Nitrate as N, dissolved <br />Calculation: N03NO2 minus NO2 <br />U <br />mg/L <br />0.02 <br />0.1 <br />08/06/07 0:00 <br />calc <br />Nitrate/Nitrite as N, M353.2 - Automated Cadmium U * mg/L 0.02 0.1 07/11/07 21:21 pjb <br />dissolved Reduction <br />Nitrite as N, dissolved M353.2 - Automated Cadmium U mg/L 0.01 0.05 07/11/07 21:21 pjb <br /> Reduction <br />5 <br />h <br />Residue, Filterable 160.1 / SM2540C 4240 mg/L 10 20 07/17/07 11:5 ae <br />(TDS) @180C <br />Sodium Absorption USGS - 11738-78 47.50 0.03 0.15 08/06/07 0:00 1 caic <br />Ratio in Water <br />Sulfate SM4500 S04-D U mg/L 10 50 07119/07 14:45 kmc <br />TDS (calculated) Calculation 4060 mg/L 10 50 08/06/07 0:00 caic <br />TDS (ratio - Calculation 1.04 08/06/07 0:00 caic <br />measured/calculated) i <br />REPIN.02.06.05.01 * Please refer to Qualifier Reports for detail. <br />L63744: Page 7 of 18