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ACZ <br /> Laboratories, Inc. <br /> 2773 Downhill Drive Steamboat Springs, CO 80487(800)334-5493 <br /> Alexco Environmental Group(US) Inc. ACZ Sample ID: L44225-07 <br /> Project ID: Date Sampled: 05/09/18 10:06 <br /> Sample ID: SW-OS Date Received: 05110118 <br /> Sample Matrix: Surface Water <br /> Wet Chemistry <br /> Parameter EPA Method Dilution Result Qual XQ Units MDL POL <br /> .: <br /> Alkalinity as CaCO3 SM2320B-Titration <br /> Bicarbonate as 1 41.7 mg/L 2 20 05/18/18 0:00 enb <br /> CaCO3 <br /> Carbonate as CaCO3 1 U mg/L 2 20 05/18/18 0:00 enb <br /> Hydroxide as CaCO3 1 U mg/L 2 20 05/18/18 0:00 enb <br /> Total Alkalinity 1 41.7 * mg/L 2 20 05/18/18 0:00 enb <br /> Cation-Anion Balance Calculation <br /> Cation-Anion Balance -2.6 % 05/24/18 0:00 calc <br /> Sum of Anions 2 meq/L 05/24/18 0:00 calc <br /> Sum of Cations 1.9 meq/L 05/24/18 0:00 calc <br /> Chloride SM4500CI-E 1 31.3 mg/L 0.5 2 05/14/1811:41 jmm <br /> Cyanide,WAD SM4500-CN 1,E- 0.5 U mg/L 0.003 0.01 05/16/18 14:54 djp <br /> Colorimetric w/distillation <br /> Fluoride SM450OF-C 1 0.14 B mg/L 0.05 0.3 05/21/1817:48 emk <br /> Hardness as CaCO3 SM2340B-Calculation 70 mg/L 0.2 5 05/24/18 0:00 calc <br /> (dissolved) <br /> Nitrate/Nitrite as N M353.2-H2SO4 preserved 1 0.07 B mg/L 0.02 0.1 05/19/18 0:06 pjb <br /> Phosphate,total Calculation based on total 0.09 B mg/L 0.06 0.2 05/24/18 0:00 calc <br /> Phosphorus <br /> Phosphorus,total M365.1 -Auto Ascorbic 1 0.03 B mg/L 0.02 0.05 05/17/18 1:14 pjb <br /> Acid(digest) <br /> Residue, Filterable SM2540C 1 136 mg/L 10 20 05/11/18 14:27 kja <br /> (TDS)@180C <br /> Residue, Non- SM2540D 1 7.0 B mg/L 5 20 05/11/18 10:46 kja <br /> Filterable(TSS) <br /> @ 105C <br /> Sulfate D516-02/-07-Turbidimetric 1 12.0 mg/L 1 5 05/15/18 13:55 jmm <br /> TDS(calculated) Calculation 106 mg/L 05/24/18 0:00 calc <br /> TDS(ratio- Calculation 1.28 05/24/18 0:00 calc <br /> measured/calculated) <br /> REPI N.02.06.05.01 *Please refer to Qualifier Reports for details. <br /> L44225-1805241025 Page 9 of 55 <br />