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Laboratories, Inc. <br />2773 Downhill Drive Steamboat Springs, CO 80487(800) 334-5493 <br />Kerr Coal Company <br />Project ID: <br />Sample ID: 79-3 <br />ACZ Sample ID: <br />Date Sampled: <br />Date Received: <br />Sample Matrix: <br />L53815-06 <br />10/18/05 13:45 <br />10/19/05 <br />Ground Water <br />Field Data <br />Conductivity (Field) Field Measurement 1300 umhos/cm 10/18/05 1:45 jm <br />pH (Field) Field Measurement 7.9 units 10/18!05 1:45 jm <br />Temperature (Field) Field Measurement 12.0 C 10/18/05 1:45 jm <br />Metals Analysis <br /> p <br />Calcium, dissolved M200.71CP 65.9 mg/L 0.2 1 10/2205 20:47 mea <br />Iron, dissolved M200.71CP 0.09 mg/L 0.02 0.05 10/22/05 20:47 mea <br />Magnesium, dissolved M200.71CP 10.3 mg/L 0.2 1 10/22/05 20:47 mea <br />Manganese, dissolved M200.7 ICP 0.083 mg/L 0.005 0.03 10!22/05 20:47 mea <br />Potassium, dissolved M200.7 ICP 23.0 mg/L 0.3 1 10/22105 20:47 mea <br />Sodium, dissolved M200.7 ICP 1440 mg/L 2 10 10/22/05 20:47 mea <br />Wet Chemistry <br /> #.. <br />Alkalinity as CaC03 SM2320B -Titration <br />Bicarbonate as 295 mg/L 2 20 10/28/05 0:00 j0 <br />CaC03 <br />Corbonoto ac CoC03 U mg/L 2 20 10/28/06 0:00 jtl <br />Hydroxide as CaC03 U mg/L 2 20 10/28/05 0:00 N <br />Total Alkalinity 295 - mg/L 2 20 10128/05 0:00 jll <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance -5.4 % 11/10/050:00 talc <br />Sum of Anions 75.9 meglL 0.1 0.5 11/10/05 0:00 talc <br />Sum of Cations 68.1 meq/L 0.1 0.5 11170/05 0:00 talc <br />Chloride M325.2-Colorimelric 2500 mg/L 100 500 11/0710513:31 ccF <br />Hardness as CaC03 SM23408 -Calculation 207 mg/L 1 7 11/10/DS 0:00 talc <br />Lab Filtration SM 3030 B 10/28/05 7:33 tam <br />Lab Filtration & SM 3030 B 10/20/05 11:57 djt <br />Acidification <br />Nitrate as N, dissolved Calculation: N03N02 minus N02 U mg/L 0.02 0.1 11110/05 0:00 talc <br />Nitrate/Nitrite as N, M353.2-Automated Cadmium UH ' mg/L 0.02 0.1 10/2010519:33 pjb <br />dissolved Reduction <br />Nitrite as N, dissolved M353.2 -Automated Cadmium UH mg/L 0.01 0.05 10/20/05 19:33 pjb <br /> Reduction <br />Residue, Filterable M160.1 -Gravimetric 4090 mg/L 10 20 10124/0514:34 j8 <br />(TDS) @1 BOC <br />Sodium Absorption USGS - 11738-78 44.00 0.03 0.15 11/10/05 0:00 talc <br />Ratio in Water <br />Sulfate M375.3-Gravimetric U mg/L 10 50 11102/0518:12 j8 <br />TDS (calculated) Calculation 4220 mg/L 10 50 11/10105 0:00 talc <br />TDS (ratio- Calculation 0.97 11!10/050:00 talc <br />measured/calculated) <br />REPIN.02.06.05.01 • Please refer to Extended Qualifier Report /or detail <br />L53815: Page 7 of 17 <br />