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Laboratories, Inc. <br />2773 Downhill Drive Steamboat Sodnos. CO A0487/8001 334-549.? <br />Field Data <br /> p P B • B <br />Conductivity (Field) Field Measurement 200 umhos/cm 04/19/0513:00 jm <br />pH (Field) Field Measurement 7.8 units 04/19/05 13:00 jm <br />Temperature (Field) Field Measurement 6.0 C 04/19/05 13:00 jm <br />Metals Analysis <br /> P R 4 P B. - <br />Calcium, dissolved M200.7 ICP 64 mg/L 1 5 05/03/05 18:36 wfg <br />Iron, dissolved M200.7 ICP 0.13 B mg/L 0.05 0.3 05/03/05 18:36 vrfg <br />Magnesium, dissolved M200.7 ICP 17 mg/L 1 5 05/03/05 18:36 wfg <br />Manganese, dissolved M200.7 ICP 0.04 B mg/L 0.03 0.1 05/03/05 18:36 wfg <br />Potassium, dissolved M200.7 ICP 2.6 mg/L 0.3 1 OS/OS/OS 12:19 mea <br />Sodium, dissolved M200.71CP 114 mg/L 0.3 1 05105/OS 12:19 mea <br />Wet Chemistry <br /> P W ¢ •A P. - <br />Alkalinity as CaCO3 SM2320B -Titration <br />Bicarbonate as 388 mg/L 2 10 OSIA3/OS 0:00 ct <br />CaCO3 <br />Carbonate as CaCO3 U mg/L 2 10 05/03/05 0:00 ct <br />Hydroxide as CaCO3 U mg/L 2 10 05!03!05 0:00 ct <br />Total Alkalinity 388 mg/L 2 10 05/03/05 0:00 ct <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance -3.5 % 05/10/05 0:00 talc <br />Sum of Anions 10.3 meq/L 0.1 0.5 05/10/05 0:00 talc <br />Sum of Cations 9.6 meq/L 0.1 0.5 05/10/05 0:00 talc <br />Chloride M325.2 - Colorimetric 9 mg/L 1 5 04/30/05 20:52 pjb <br />Hardness as CaCO3 SM2340B -Calculation 230 mg/L 1 7 05/10/OS 0:00 talc <br />Lab Filtration SM 3030 B 04122/05 13:32 ak/Ims <br />Lab Filtration & SM 3030 B 04/21/05 16:47 ak <br />Acidification <br />Nitrate as N, dissolved Calculation: NO3NO2 minus NO2 U mg/L 0.02 0.1 OS/10/05 0:00 talc <br />Nitrate/Nitrite as N, M353.2 -Automated Cadmium U mg/L 0.02 0.1 04120/05 20:33 pjb <br />dissolved Reduction <br />Nitrite as N, dissolved M353.2 -Automated Cadmium U ` mg/L 0.01 0.05 04120/05 20:33 pjb <br /> Reduction <br />Residue, Filterable M160.1 -Gravimetric 570 mg/L 10 20 0412fi/05 10:44 lms <br />(TDS) @180C <br />Sodium Absorption USGS - 11738-78 3.31 0.03 0.15 05/10/05 0:00 talc <br />Ratio in Water <br />Sulfate M375.3-Gravimetric 110 mglL 10 50 04!28/0517:18 jjr/jtl <br />TDS (calculated) Calculation 550 mg/L 10 50 OS/10105 0:00 talc <br />TDS (ratio - Calculation 1.04 05/10/05 0:00 talc <br />measured calculated) <br />REPIN.01.11.00.01 • Please refer to Extended Qualifier Report for detail <br />L50701: Page 3 of 15 <br />Kerr Coal Company ACZ Sample ID: L50701-02 <br />Project ID: Date Sampled: 04/19/05 13:00 <br />Sample ID: 79-61 Date Received: 04/20/05 <br />Sample Matrix: Ground Water <br />