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O.~L Laboratories, Inc. <br />2773 Downhill Drive Steamboat Sodnas. CO 80487/8001 334-5493 <br />Field Data <br /> - • P ~ A •. <br />Conducfivity (Field) Field Measurement 1671 umhos/cm 04/12/06 1:15 jm <br />pH (Field) Field Measurement 8.5 units 04/12IOfi 1:15 jm <br />Temperature (Field) Field Measurement 12.1 C 04/12/06 1:15 jm <br />Metals Analysis <br /> <br />Calcium, dissolved M200.7 ICP 11.9 mg/L 0.4 2 04/20/06 18:13 jjc . <br />Iron, dissolved M200.7 ICP 0.10 mglL 0.04 0.1 04/20/06 18:13 jjc <br />Magnesium, dissolved M200.7 ICP 2.1 mg/L 0.4 2 04/20/06 18:13 jjc <br />Manganese, dissolved M200.7 ICP 0.018 B mg/L 0.005 0.03 04/19/06 19:47 jjc <br />Potassium, dissolved M200.7 ICP 3.1 mg/L 0.3 1 04/19/06 19:47 llc <br />Sodium, dissolved M200.71CP 657 ' mg/L 0.6 2 04/20/06 16:13 jjc <br />Wet Chemistry <br /> <br />- <br />• • <br />a <br />~ • <br />s . - ~}~t <br />YiiilViil <br />Alkalinity as CaC03 SM23208-Titration <br />Bicarbonate as 405 mglL 2 20 04/13106 0:00 j8 <br />CaC03 <br />Carbonate as CaC03 21 mg/L 2 20 04/13106 0:00 j8 <br />Hydroxide as CaC03 U mg/L 2 20 04/13/06 0:00 jff <br />Total Alkalinity 426 mg/L 2 20 04/13106 0:00 j8 <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance -0.5 % D4/25/O6 10:15 talc <br />Sum of Anions 30.1 meq/L 0.1 0.5 04/25/06 10:15 talc <br />Sum of Cations 29.8 meq/L 0.1 0.5 04!25/06 10:15 talc <br />Chloride M325.2 - Colodmetric 770 mg/L 20 100 04/18/06 12:53 nps <br />Hardness as CaC03 SM2340B -Calculation 38 mg/L 1 7 04!25!06 10:15 talc <br />Lab Filtration SM 3030 B ` 04!18/06 10:12 nps <br />Lab Filtration t£ SM 3030 8 04118!06 13:19 erf <br />Acidification <br />Nitrate as N, dissolved Calculation: N03N02 minus N02 U mglL 0.02 0.1 04/25/06 10:15 talc <br />Nitrate/Nitrite as N, M353.2 -Automated Cadmium U mg/L 0.02 0.1 04/13/06 18:42 pjb <br />dissolved Reduction <br />Nitrite as N, dissolved M353.2 -Automated Cadmium U mg/L O.D1 0.05 04/13/06 18:42 pjb <br /> Reduction <br />Residue, Filterable M160.1 - Gravimetdc 1720 mglL 10 20 04/18/06 15:11 jh <br />(TDS) @780C <br />Sodium Absorption USGS - 11738-78 46.70 0.03 0.15 04/25/06 10:15 talc <br />Ratio in Water <br />Sulfate SM4500 804-D U mg/L 10 50 04/18/06 18:08 jlt <br />TDS (calculated) Calculation 1710 mg/L 10 50 04/25/06 10:15 talc <br />TDS (ratio - Calculation 1.01 04/25/06 10:15 talc <br />measured/calculated) <br />REPIN.02.06.05.01 `Please refer [o Extended Qualifier Report for detail <br />L56030: Page 6 of 19 <br />Kerr Coal Company ~ ACZ Sample ID: L56030-05 <br />Project ID: Date Sampled: 04/12/06 13:15 <br />Sample ID: 79-2 Date Received: 04/13/06 <br />Sample Matrix: Ground Water <br />