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<br />I 1 <br />• <br />_ Laboratories, Inc. <br />2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 <br /> <br />New Elk Mine <br />Project ID: <br />Sample ID: LC-2 <br />ACZ Sample ID: L72932-01 <br />Date Sampled: 1110610812:05 <br />Date Received: 11107108 <br />Sample Matrix: Surface Water <br />Wet Chemistry <br /> <br />Alkalinity as CaCO3 SM2320B - Titration <br />Bicarbonate as 386 mg/L 2 20 11/14/08 0:00 gkj <br />CaCO3 <br />Carbonate as CaCO3 9 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 396 mg/L 2 20 11114/08 0:00 gkj <br />Ammonia as N, un- M350.1 - Calculation < U mg/L 0.01 0.05 11124/08 0:00 calc <br />ionized <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance -6.6 % 11/24108 0:00 calc <br />Sum of Anions 11.3 meglL 0.1 0.5 11/24108 0:00 calc <br />Sum of Cations 9.9 meq/L 0.1 0.5 11124108 0:00 calc <br />Chloride SM4500CI-E 78 * mg/L 1 5 11/20/0817:53 aml <br />Conductivity @25C SM2510B 914 umhos/cm 1 10 11/14/08 0:13 gkj <br />Hardness as CaCO3 SM2340B - Calculation 143 mg/L 1 7 11/24/08 0:00 calc <br />Lab Filtration SM 3030 B 11/11/08 13:30 gkj <br />Lab Filtration & SM 3030 B * 11/11/08 13:23 gkj <br />Acidification <br />Nitrogen, ammonia M350.1 - Automated Phenate U * mg/L 0.05 0.5 11/13108 17:11 neb <br />pH (lab) SM4500H+ B <br />pH 8.4 H units 0.1 0.1 11/14/08 0:00 gkj <br />pH measured at 23.0 C 0.1 0.1 11/14/08 0:00 gkj <br />Residue, Filterable SM2540C 640 mg/L 10 20 11/12/08 13:45 abm <br />(TDS) @180C <br />Sodium Absorption USGS -11738-78 5.88 0.03 0.15 11/24/08 0:00 calc <br />Ratio in Water <br />Sulfate 375.4 - Turbidimetric 57 mg/L 5 30 11/14/08 12:33 aml <br />TDS (calculated) Calculation 585 mg/L 10 50 11/24/08 0:00 calc <br />TDS (ratio - Calculation 1.09 11124/08 0:00 calc <br />measured/calculated) <br />REPIN.02.06.05.01 <br />* Please refer to Qualifier Reports for details. <br />Page 4 of 21