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Laboratories, Inc. <br />• 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 ' - <br /> New Elk Mine ACZ Sample ID: L72932-03 <br /> Project ID: Date Sampled: 11106108 15.00 <br /> Sample ID: PRGTY-1 Date Received: 11107108 <br /> Sample Matrix: Surface Water <br /> Wet Chemistry <br /> <br /> Alkalinity as CaCO3 SM2320B - Titration <br /> Bicarbonate as 214 mg/L 2 20 11114/08 0:00 gkj <br /> CaCO3 <br /> Carbonate as CaCO3 2 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 216 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 11124/08 0:00 talc <br /> ionized <br /> Cation-Anion Balance Calculation <br /> Cation Anion Balance -3.0 % 11/24/08 0:00 calc <br /> Sum of Anions 5.1 meq/L 0.1 0.5 11/24/08 0:00 calc <br /> Sum of Cations 4.8 meq/L 0.1 0.5 11/24/08 0:00 calc <br /> Chloride SM4500CI-E 12 mg/L 1 5 11/17/0813:38 jjg <br /> Conductivity @25C SM2510B 436 umhos/cxn 1 10 11117/08 16:41 abm <br /> Hardness as CaCO3 SM2340B - Calculation 132 mg/L 1 7 11/24108 0:00 calc <br />• Lab Filtration <br />Lab Filtration 8 SM 3030 B <br />SM 3030 B 11/11/08 13:44 <br />11/11/08 13:41 gkj <br />gkj <br /> Acidification <br /> Nitrogen, ammonia M350.1 -Automated Phenate U mg/L 0.05 0.5 11/13/08 17:13 neb <br /> pH (lab) SM4500H+ B <br /> pH 8.3 H units 0.1 0.1 11/14/08 0:00 gkj <br /> pH measured at 22.0 C 0.1 0.1 11/14/08 0:00 gkj <br /> Residue, Filterable SM2540C 290 mg/L 10 20 11/12/08 13:48 abm <br /> (TDS) @180C <br /> Sodium Absorption USGS -11738-78 1.88 0.03 0.15 11/24/08 0:00 calc <br /> Ratio in Water <br /> Sulfate 375.4 - Turbidimetric 25 mg/L 1 5 11/15/08 15:32 Ibn <br /> TDS (calculated) Calculation 265 mg/L 10 50 11124108 0:00 caic <br /> MS (ratio - Calculation 1.09 11/24/08 0:00 calc <br /> measured/calculated) <br />REPIN.02.06.05.01 • Please refer to Qualifier Reports for details. <br />Page 8 of 21