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Laboratories, Inc. <br />2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 <br /> <br />ID <br />l <br />• 03 <br />L67204 <br />: <br />e <br />Lorencito Coal Company ACZ Samp - <br />Project ID: Date Sampled: 09/12/0815:05 <br />Sample ID: PRGTY 2 Date Received: 01115108 <br />Sample Matrix: Surface Water <br />Wet Chemistry <br />lij <br />Alkalinity as CaC03 SM2320B - Titration <br />Bicarbonate as <br />CaCO3 <br />Carbonate as CaC03 <br />Hydroxide as CaC03 <br />Total Alkalinity <br />Ammonia as N, un- M350.1 - Calculation <br />ionized <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance <br />Sum of Anions <br />Sum of Cations <br />Chloride 325.21 SM45000I-E <br />Conductivity @25C 120.1 / SM2510B <br />Hardness as CaC03 SM2340B - Calculation <br />Lab Filtration SM 3030 B <br />Lab Filtration & SM 3030 B <br />. <br />Acidification <br />Nitrogen, ammonia M350.1 - Automated Phenate <br />pH (lab) 150.11 SM4500H+ B <br />pH <br />pH measured at <br />Residue, Filterable 160.11 SM2540C <br />(TDS) @180C <br />Sodium Absorption USGS -11738-78 <br />Ratio in Water <br />Sulfate 375A - Turbidimetric <br />TDS (calculated) Calculation <br />TDS (ratio - Calculation <br />measured/calculated) <br />'71- -111 j 7 UAl_ L' <br />225 mg/L 2 20 01/16/08 0:00 icp <br />15 B mg/L 2 20 01/16108 0:00 Icp <br /> U mg/L 2 20 01/16/08 0:00 Icp <br />240 ' mg/L 2 20 01/16/080-00 Icp <br />< U m9/L 0.01 0.05 01/28/08 0:00 calc <br />0.8 % 01/28/08 0:00 caic <br />6.1 meq/L 0.1 0.5 01/28108 0:00 calc <br />6.2 meq/L 0.1 0.5 01/28/08 0:00 caic <br />17 mg/L 1 5 01/21/0814:05 am! <br />563 umhos/cm 1 10 01/16108 23:40 Icp <br />161 mg/L 1 7 01/28/08 0.00 calc <br /> * 01/15/0815:30 cas <br /> * 01/161089-55 wpl <br /> U * mg/L 0.05 0.5 01/22108 20:28 pib <br />8.6 H units 0.1 0.1 01/161080:00 Icp <br />23.0 C 0.1 0.1 01/161080:00 Icp <br />320 m9/L 10 20 01/15/0815:13 cas <br />2,34 0.03 0.15 01/28/08 0:00 talc <br />39 mg/- 5 30 01/24/0814:27 am[ <br />332 mg/L 10 50 01/28/08 0:00 calc <br />0.96 01/28/08 0:00 calc <br />• <br />REPIN.02.06.05.01 "Please refer to Qualifier Reports for details. <br />L67204: Page 7 of 20