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/~~ Laboratories, Inc. <br />2773 Downhill Drive Steamboat Snnnas. CO 80487(800) 334-5493 <br />Field Data <br /> - • • s •• s. <br />Conductivity (Field) Field Measurement 1910 mS/cm ~ 07/19/06 12:45 jm <br />pH (Field) Field Measurement 8.1 units 07/19/06 12:45 jm <br />Temperature (Field) Field Measurement 18.0 C 07/19/06 12:45 jm <br />Metals Analyeis <br /> • e ~ r - • ~ . - IWiitiii <br />Calcium, dissolved M200.71CP 7.5 mg/L 0.2 1 08/02/063:57 msh <br />Iron, dissolved M200.71CP 0.42 mg/L 0.02 0.05 08/02/063:57 msh <br />Magnesium, dissolved M200.71CP 0.5 B mg/L 0.2 1 08/02/063:57 msh <br />Manganese, dissolved M200.7 ICP 0.026 B mg/L 0.005 0.03 08/02/Ofi 3:57 msh <br />Potassium, dissolved M200.71CP 2.1 mg/L 0.3 1 08/02/063:57 msh <br />Sodium, dissolved M200.71CP 473 mg/L 0.3 1 08/02/063:57 msh <br />Wet Chemistry <br /> <br />Alkalinity as CaCO3 SM2320B -Titration <br />Bicarbonate as 1010 mg/L 2 20 07!30/06 0:00 cl <br />CaCO3 <br />Carbonate as CaCO3 U mg/L 2 20 07/30/06 0:00 ct <br />Hydroxide as CaCO3 U mg/L 2 20 07/30/06 0:00 ct <br />Total Alkalinity 1010 mg/L 2 20 07/30/06 0:00 cl <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance -0.9 % 08/02106 12:25 talc <br />Sum of Anions 21.7 meq/L 0.1 0.5 08/02/06 12:25 talc <br />Sum of Cations ~ 21.3 meq/L 0.1 0.5 08/02/06 12:25 talc <br />Chloride M325.2 - Colorametric 47 mg/L 1 5 07!20106 15:49 j0 <br />Hardness as CaCO3 SM23408 -Calculation 21 mg/L 1 7 OB/02IOfi 12:25 talc <br />Lab Filtration SM 3030 B 07/20106 15:07 jlf <br />Lab Filtration 8 SM 3030 B 07!24/06 13:09 tea <br />Acidificatiori <br />Nitrate as N, dissolved Calculation: NO3NO2 minus NO2 U mg/L 0.02 0.1 08/02/06 12:25 talc <br />Nitrate/Nitrate as N, M353.2-Automated Cadmium U ' mg/L 0.02 0.1 07/20/0621:22 pjb <br />dissolved Reduction <br />Nitrite as N, dissolved M353.2 -Automated Cadmium ~ 0.01 B mg/L 0.01 0.05 07/20/06 21:22 pjb <br /> Reduction <br />Residue, Filterable M160.1 - Gravimetrac 1230 mg/L 10 20 07/25/06 14:20 kmc <br />(TDS) @780C <br />Sodium Absorption USGS - 11738-78 45.60 0.03 0.15 08102/06 12:25 talc <br />Ratio in Water <br />Sulfate SM4500 504-D 10 B mg/L 10 50 07/26/06 16:29 kmc <br />TDS (calculated) Calculation - 1150 mglL 10 50 08/02/06 12:25 talc . <br />TDS (ratio- Calculation 1.07 08/02!0612:25 talc <br />measured/calcu I ated) <br />REPIN.02.06.05.01 'Please refer to Qualifier Reports for detail. <br />L57759: Page 5 of 12 <br />Kerr Coal Company ACZ Sample ID: L57759-04 <br />Project ID: Date Sampled: 07/19/06 12:45 <br />Sample ID: SP-01 Date Received: 07120/06 <br />Sample Matrix: Ground Water <br />