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Laboratories, Inc. _ <br />• 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 - - <br /> New Elk Mine ACZ Sample ID: L72932-02 <br /> Project ID: Date Sampled: 11106108 10.45 <br /> Sample ID: LC-1 Date Received: 11107108 <br /> Sample Matrix: Surface Water <br /> Wet Chemistry _ <br /> <br /> Alkalinity as CaCO3 SM2320B - Titratiori <br /> Bicarbonate as 403 mg/L 2 20 11114/08 0:00 gkj <br /> CaCO3 <br /> Carbonate as CaCO3 6 B mg/L 2 20 11/14/08 0:00 gkj <br /> Hydroxide as CaCO3 U mg/L 2 20 11/14/08 0:00 gkj <br /> Total Alkalinity 409 mg/L 2 20 11/14/08 0:00 gkj <br /> Ammonia as N, un- M350.1 - Calculation < U mg/L 0.01 0.05 11/24108 0:00 calc <br /> ionized <br /> Cation-Anion Balance Calculation <br /> Cation-Anion Balance -7.1 % 11/24108 0:00 talc <br /> Sum of Anions 10.6 meq/L 0.1 0.5 11/24/08 0:00 talc <br /> Sum of Cations 9.2 meq/L 0.1 0.5 11/24/08 0:00 talc <br /> Chloride SM4500CI-E 65 mg/L 1 5 11/17/0813:55 jig <br /> Conductivity 025C SM2510B 868 umhos/cm 1 10 11114/08 0:22 gkj <br /> Hardness as CaCO3 SM2340B - Calculation 136 mg/L 1 7 11/24/08 0:00 calc <br /> Lab Filtration SM 3030 B ' 11/11/08 13:37 gkj <br />• Lab Filtration & SM 3030 B 11/11/08 13:32 gkj <br /> Acidification <br /> Nitrogen, ammonia M350.1 - Automated Phenate U mg/L 0.05 0.5 11/13/08 17:12 neb <br /> pH (lab) SM4500H+ B <br /> pH 8.3 H units 0.1 0.1 11114/08 0:00 gkj <br /> pH measured at 23.0 C 0.1 0.1 11/14/08 0:00 gkj <br /> Residue, Filterable SM2540C 570 mg/L 10 20 11/12108 13:46 abm <br /> (TDS) @180C <br /> Sodium Absorption USGS -11738-78 5.51 0.03 0.15 11/24/08 0:00 calc <br /> Ratio in Water <br /> Sulfate 375.4 - Turbidimetric 29 mg/L 1 5 11/15/08 15:32 Ibn <br /> TDS (calculated) Calculation 535 mg/L 10 50 11/24/08 0:00 talc <br /> TDS (ratio - Calculation 1.07 11/24/08 0:00 talc <br /> measured/calculated) <br />REPIN.02.06.05.01 ' Please refer to Qualifier Reports for details. <br />Page 6 of 21