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ADZI-aboratories, Inc. TM <br /> 2773 Downhill Drive Steamboat Sprigs, CO 80487(800)334-5493 <br /> Ouray Silver Mines ACZ Sample ID. L43205-02 <br /> Project ID: 153178 Date Sampled: 03114118 15:29 <br /> Sample ID: GW-2A Date Received. 03116118 <br /> Sample Matrix: Ground Water <br /> Wet Chemistry <br /> rameter EPA Method A Qual XO Unks MDL PQLDate *4iiiiiiiiii <br /> Alkalinity as CaCO3 SM2320B-Titration <br /> Bicarbonate as 1 28.7 mg/L 2 20 03/19/18 0 00 enb <br /> CaCO3 <br /> Carbonate as CaCO3 1 U mg/L 2 20 03/19/18 0:00 enb <br /> Hydroxide as CaCO3 1 U mg/L 2 20 03/19/18 0:00 enb <br /> Total Alkalinity 1 28.7 * mg/L 2 20 03/19/18 0:00 enb <br /> Cation-Anion Balance Calculation <br /> Cation-Anion Balance 0.0 % 03/23/18 0:00 calc <br /> Sum of Anions 2 meq/L 03/23/18 0:00 calc <br /> Sum of Cations 2 meq/L 03/23/18 0:00 calc <br /> Chloride SM45000I-E 1 0.6 B mg/L 0.5 2 03/19/1813:13 kea <br /> Conductivity @25C SM2510B 1 233 umhos/cm 1 10 03/19/18 18 31 enb <br /> Cyanide,total M3354-Colonmetncw/distillation 0.5 U mg/L 0.003 0.01 03/22/1823:16 pjb <br /> Fluoride SM450OF-C 1 0.20 B * mg/L 0.05 0.3 03/20/1817:33 enb <br /> Hardness as CaCO3 SM2340B-Calculation 93 mg/L 0.2 5 03/23/18 0 00 calc <br /> (dissolved) <br /> Lab Filtration(0.45um sOPwco50 1 03/20/18 12 58 enb <br /> filter) <br /> Lab Filtration(0.45um) M200 7/200 a/3005A 1 03/17/18 18 00 sck <br /> &Acidification <br /> Nitrate/Nitrite as N M353 2-H2SO4 preserved 1 0.16 mg/L 0.02 0.1 03/17/18 1:01 plb <br /> pH(lab) SM45001-1+B <br /> pH 1 7.6 H * units 0.1 0.1 03/19/18 0:00 enb <br /> pH measured at 1 23.5 C 01 0.1 03/19/18 0:00 enb <br /> Phosphorus,ortho M365 1-Automated Ascorbic Aad 1 0.02 B * mg/L 0.02 0.05 03/16/18 23 52 pjb <br /> dissolved <br /> Residue, Filterable SM2540C 1 150 mg/L 10 20 03/16/18 15:46 emk <br /> (TDS)@180C <br /> Residue, Non- SM2540D 1 338 * mg/L 5 20 03/17/18 7 17 ecc <br /> Filterable(TSS) <br /> @105C <br /> Sulfate D516-02/-07-Turbidimetric 5 65.8 mg/L 5 25 03/16/18 12:41 kea <br /> TDS(calculated) Calculation 129 mg/L 03/23/18 0 00 calc <br /> TDS(ratio- Calculation 1.16 03/23/18 0 00 calc <br /> measured/calculated) <br /> REPIN 02.06.05.01 "Please refer to Qualifier Reports for details. <br /> L43205-1803231004 Page 5 of 22 <br />