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AIDE Laboratories, Inc. <br />2773 Downhill Drive Steamboat Springs, CO 80487 (800) <br />Kerr Coal Company ACZ Sample ID: L69087-07 <br />Project ID: Date Sampled: 05107108 09.00 <br />Sample ID: AP-2-1,20 Date Received: 05108108 <br />Sample Matrix: Ground Water <br />Field Data <br />Parameter EPA Method Resuft Qual ! Units ! . Date AnaW, <br />Conductivity (Field) Field Measurement 700 ms/cm 05/07108 9:00 jm <br />pH (Field) Field Measurement 8.0 units 05/07/08 9:00 jm <br />Temperature (Field) Field Measurement 9.0 C 05/07/08 9:00 jm <br />Metals Analysis <br />Parameter bf li',OMO :(=7-4iii ?! • !.(!]?lRiis il!)Ltt 4101- lLaw?_ rF1LTi t <br />Calcium, dissolved M200.7 ICP 49.9 mg/L 0.2 1 05/12108 20:06 erf <br />Iron, dissolved M200.7 ICP 0.21 mg/L 0.02 0.05 05/12108 20:06 erf <br />Magnesium, dissolved M200.7 ICP 34.1 mg/L 0.2 1 05/12/08 20:06 erf <br />Manganese, dissolved M200.7 ICP 0.690 mg/L 0.005 0.03 05/12/08 20:06 erf <br />Potassium, dissolved M200.7 ICP 1.3 B mg/L 0.3 2 05/12/08 20:06 erf <br />Sodium, dissolved M200.7 ICP 31.2 mg/L 0.3 2 05/12/08 20:06 erf <br />Wet Chemistry <br />I'frrTiil?'-?? ?:JG?i'i[?iTT :h?71i ?lITF1 e'(l?llili%? i;1lJli l(?11J11 ?lcle:? c(iFIP?-?i <br />Alkalinity as CaC03 SM2320B - Titration <br />Bicarbonate as 331 mg/L 2 20 05/09/08 0:00 ear <br />CaCO3 <br />Carbonate as CaC03 U mg/L 2 20 05/09/08 0:00 ear <br />Hydroxide as CaC03 U mg/L 2 20 05/09/08 0:00 ear <br />Total Alkalinity 331 mg/L 2 20 05/09108 0:00 ear <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance -5.0 % 05/20/08 13:01 'talc <br />Sum of Anions 7.4 meq/L 0.1 0.5 05/20/08 13:01 talc <br />Sum of Cations 6.7 meq/L 0.1 0.5 05/20/08 13:01 talc <br />Chloride 325.2 / SM45000I-E 6 * mg/L 1 5 05/16/08 18:52 pjb <br />Hardness as CaC03 SM2340B - Calculation 265 mg/L 1 7 05/20/08 13:01 talc <br />Lab Filtration SM 3030 B 05/09/08 8:20 wpl <br />Lab Filtration 8 SM 3030 B 05/09/08 8:57 wpl <br />Acidification <br />Nitrate as N, dissolved Calculation: N03NO2 minus N02 U mg/L 0.02 0.1 05120/08 13:01 talc <br />Nitrate/Nitrite as N, M353.2 - Automated Cadmium U * mg/L 0.02 0.1 05/08/08 18:19 pjb <br />dissolved Reduction <br />Nitrite as N, dissolved M353.2 - Automated Cadmium U mg/L 0.01 0.05 05/08108 18:19 pjb <br /> Reduction <br />Residue, Filterable 160.1 / SM2540C 360 mg/L 10 20 05/13/08 15:52 ear <br />(TDS) @180C <br />Sodium Absorption USGS - 11738-78 0.84 0.03 0.15 05/20/08 13:01 talc <br />Ratio in Water <br />Sulfate SM4500 S04-D 30 B mg/L 10 50 05/16108 11:47 jlf <br />TDS (calculated) Calculation 352 mg/L 10 '50 05/20108 13:01 talc <br />TDS (ratio - Calculation 1.02 05/20/08 13:01 talc <br />measured/calculated) <br />REPIN.02.06.05.01 . ' Please refer to Oualifier Reports for details. <br />Page 8 of 16