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ACZ <br /> Laboratories, Inc. <br /> 2773 Downhill Drive Steamboat Springs, CO 80487(800)334-5493 <br /> Ouray Silver Mines ACZ Sample ID: L37780-02 <br /> Project ID: OSM152335 Date Sampled: 06112117 12:57 <br /> Sample ID: SW-15 Date Received: 06114117 <br /> Sample Matrix: Ground Water <br /> Wet Chemistry <br /> Parameter EPA Method Dilution Result Qual XQ Units MDLPQL Date AnalyW-�, <br /> Alkalinity as CaCO3 SM2320B-TAration <br /> Bicarbonate as 1 21.4 mg/L 2 20 06/16/17 0:00 abd <br /> CaCO3 <br /> Carbonate as CaCO3 1 U mg/L 2 20 06/16/17 0:00 abd <br /> Hydroxide as CaCO3 1 U mg/L 2 20 06/16/17 0:00 abd <br /> Total Alkalinity 1 21.4 mg/L 2 20 06/16/17 0:00 abd <br /> Cation-Anion Balance Calculation <br /> Cation-Anion Balance -3.9 % 06/27/17 0:00 calc <br /> Sum of Anions 0.981 meq/L 06/27/17 0:00 calc <br /> Sum of Cations 0.907 meq/L 06/27/17 0-00 calc <br /> Chloride SM4500CI-E 1 0.6 B mg/L 0.5 2 06/20/1714:24 spi <br /> Conductivity @25C SM2510B 1 103 umhos/cm 1 10 06/16/17 23:36 abd <br /> Cyanide,total M335 4-Colorimetric w/distillation 0.5 U * mg/L 0.003 001 06/23/17 15-53 Wtc <br /> Fluoride SM450OF-C 1 009 B * mg/L 0.05 03 06/20/17 18:46 abd <br /> Hardness as CaCO3 SM2340B-calculation 40 mg/L 0.2 5 06/27/17 0:00 cale <br /> (dissolved) <br /> Nitrate/Nitrite as N M3532-H2SO4 preserved 1 0.13 mg/L 0.02 0.1 06/21/17 23:48 pjb <br /> pH(lab) SM4500H+B <br /> pH 1 7.4 H units 0.1 0.1 06/16/17 0:00 abd <br /> pH measured at 1 23.9 C 0.1 0.1 06/16/17 0:00 abd <br /> Phosphorus,ortho M365 1-Automated Ascorbic Acid 1 U H mg/L 002 0.05 06/14/17 23:50 pjb <br /> dissolved <br /> Residue,Filterable SM2540C 1 50 mg/L 10 20 06/17/17 9:43 the <br /> (TDS)@180C <br /> Residue, Non- SM2540D 1 U mg/L 5 20 06/16/17 11:44 the <br /> Filterable(TSS) <br /> @105C <br /> Sulfate D516-02J-07-Turbidimetric 1 25.3 mg/L 1 5 06123/1713:24 spl <br /> TDS(calculated) Calculation 608 mg/L 06/27/17 0:00 calc <br /> TDS(ratio- Calculation 0.82 06/27/17 0:00 calc <br /> measured/calculated) <br /> RE PI N.02.06.05 01 *Please refer to Qualifier Reports for details. <br /> L37780-1706271658 Page 5 of 21 <br />