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• <br />r? <br />LJ <br />• <br />L Laboratories, Inc. <br />2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 <br />C <br />V1l ri'J! c, i <br />Lorencito Coal Company ACZ Sample ID: L67204-02 <br />Project ID: Date Sampled: 01/12108 13:10 <br />Sample ID: LC-1 Date Received: 01115108 <br />Sample Matrix: Surface Water <br />Wet Chemistry <br /> <br />Alkalinity as CaCO3 SM2320B - Titration <br />Bicarbonate as 363 mg/L 2 20 01/16/08 0:00 Icp <br />CaCO3 <br />Carbonate as CaCO3 22 mg/L 2 20 01/16/080:00 Icp <br />Hydroxide as CaC03 U mg/L 2 20 01/16108 0:00 Icp <br />Total Alkalinity 385 * m91L 2 20 01/16/08 0:00 Icp <br />Ammonia as N, un- M350.1 - Calculation < U mglL 0.01 0.05 01/28/08 0:00 caic <br />ionized <br />Cation Anion Balance Calculation <br />Cation-Anion Balance 0.9 % 01/28/08 0:00 calc <br />Sum of Anions 10.7 megll- 0.1 0.5 01/28108 0:00 talc <br />Sum of Cations 10.9 meq/L 0.1 0.5 01/28108 0:00 caic <br />Chloride 325.2 / SM4500CI-E 71 mg/L 1 5 01/21/0814:05 amt <br />Conductivity @25C 120.11 SM2510B 988 umhos/cm 1 10 01/16/08 23:32 Icp <br />Hardness as CaCO3 SM2340B - Calculation 186 mg/L 1 7 01/28/080:00 calc <br />Lab Filtration SM 3030 B ' 01/15/0815:20 cas <br />Lab Filtration & SM 3030 B 01/16108 9:53 WO <br />Acidification <br />Nitrogen, ammonia M350.1 - Automated Phonate U m91L 0.05 0.5 01/22108 20:27 pjb <br />pH (lab) 150.1 / SM4500H+ B <br />pH 8.5 H units 0.1 0.1 011161080:00 Icp <br />pH measured at 23.0 C 0.1 0.1 01/16108 0:00 Icp <br />Residue, Filterable 160.1 / SM2540C 580 mg/L 10 20 01/15/0815:11 cas <br />(TDS) @180C <br />Sodium Absorption USGS -11738-78 5.22 0.03 0.15 01/28/08 0:00 caic <br />Ratio in Water <br />Sulfate 375.4 - Turbidimetric 48 mg/L 5 30 01/24/0814:27 aml <br />TDS (calculated) Calculation 586 mg/L 10 50 01/281080-00 talc <br />TDS (ratio - Calculation 0.99 01/28/08 0:00 calc <br />measured/calculated) <br />REPIN.02.06.05.01 <br />* Please refer to Qualifier Reports for details. <br />L67204: Page 5 of 20