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ACZ Laboratories, Inc. <br />2773 Downhill Drive Steamboat Sorinas. CO 80487/800) 334-5493 <br />Kerr Coal Company ACZ Sample ID: L42014-01 <br />Project ID: Date Sampled: 07/13/03 13:00 <br />Sample ID: SP-01 Date Received: 07/14/03 <br />Sample Matrix: Ground Water <br />Field Data <br />Conductivity (Field) Field Measurement 1300 umhos/cm 07/13/03 13:00 jcm <br />' pH (Field) Field Measurement 7.8 units 07/13/03 13:00 jcm <br />Temperature (Field) Field Measurement 12.0 C 07/13/0313:00 jcm <br />Metals Analysis <br /> • <br /> Calcium, dissolved M200.7 ICP 9.2 mglL 0.2 1 07/17/03 9:06 scp <br /> Iran, dissolved M200.71CP 0.51 mg/L 0.01 0.05 07/17/039:06 scp <br />' Magnesium, dissolved <br />Manganese, dissolved M200.71CP <br />M200.71CP 1.1 <br />0.047 mg/L <br />mg/L 0.2 <br />0.005 1 <br />0.03 07/17/039:06 <br />07/17/039:06 scp <br />scp <br /> Potassium, dissolved M200.71CP 2.4 mg/L 0.3 1 07/17/039:06 scp <br /> Sodium, dissolved M200.71CP 536 mg/L 2 10 07/17/039:06 scp <br />Wet Chemistry <br /> l~ <br />Alkalinity as CaC03 SM2320B -Titration <br />Bicarbonate as 1040 H mg/L 2 10 07/30/03 0:00 mah <br />CaC03 <br />Carbonate as CaC03 UH mg/L 2 10 07/30/03 0:00 mah <br />Hydroxitle as CaC03 UH mg/L 2 10 07/30103 0:00 mah <br />Total Alkalinity 1040 H mg/L 2 10 07/30/03 0:00 mah <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance 0.6 °/ 07/30103 0:00 talc <br />Sum of Anions 23.9 meq/L 0.1 0.5 07/30/03 0:00 talc <br />Sum of Cations 24.2 meq/L 0.1 0.5 07/30/03 0:00 Talc <br />Chloride M325.2 - Colodmetdc 67 mg/L 1 5 07129/03 19:46 kmc <br />Hardness as CaC03 SM23408 -Calculation 28 mg/L 1 7 07/30/03 0:00 talc <br />Lab Filtration SM 3030 B 07/14103 12:25 dlm <br />Lab Filtration & SM 3030 B 07116/03 10:08 bf <br />Acidification <br />Nitrate as N, dissolved Calculation: N03N02 minus N02 0.11 mglL 0.02 0.1 07/30103 0:00 talc <br />Nitrate/Nitrite as N, M353.2 -Automated Catlmium 0.11 H mg/L 0.02 0.1 07/15/03 18:14 kmc <br />dissolved Reduction <br />Nitrite as N, dissolved M353.2 -Automated Catlmium UH mg/L 0.01 0.05 07/15/03 18:14 kmc <br /> Reduction <br />Residue, Filterable M160.1 -Gravimetric 1310 mglL 10 20 07/18/03 19:17 jjc <br />(TOS) QTfiOC <br />Sodium Absorption USGS - 11738-78 45.00 - 0.03 0.15 07/30/03 0:00 talc <br />Ratio in Water <br />Sulfate M375.3-Gravimetric 60 mglL 10 50 07128/0310:14 ct <br />TDS (calculated) Calculation 1300 mglL 10 50 07!30/03 0:00 talc <br />TOS (ratio - Calculation 1.01 07/30/03 0:00 talc <br />measuretl/calculated) <br /> <br />REPIN.01.11.00.01 • Please refer to Extended Qualifier Report /or detail <br /> L42014: Page 3 of 12 <br />