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ADZ Laboratories, Inc. <br /> 2773 Downhill Drive Steamboat Springs, CO 80487(800)334-5493 <br /> Ouray Silver Mines ACZ Sample ID: L68141-01 <br /> Project ID: Date Sampled: 08123121 15:00 <br /> Sample ID: CWR_20210823 Date Received: 08130121 <br /> Sample Matrix: Soil <br /> Soil Preparation <br /> Parameter EPA Method Dilution Result Qual XQ Units PQL Date Analyst <br /> Synthetic Precip. M1312 09/09/21 1:50 zln <br /> Leaching Procedure <br /> Synthetic Precip. M1312,DI water 8.81 09/09/21 5:42 zln <br /> Leaching Procedure <br /> Wet Chemistry <br /> Parameter EPA Method Dilution Result Qual XQ <br /> Alkalinity(1312 DI) SM2320B-Titration <br /> Bicarbonate as 1 16.9 B * mg/L 2 20 09/14/21 0:00 eep <br /> CaCO3 <br /> Carbonate as CaCO3 1 <2 U * mg/L 2 20 09/14/21 0:00 eep <br /> Hydroxide as CaCO3 1 <2 U * mg/L 2 20 09/14/21 0:00 eep <br /> Total Alkalinity 1 16.9 B * mg/L 2 20 09/14/21 0:00 eep <br /> Bromide(1312-DI) M300.0-Ion Chromatography 1 0.369 * mg/L 0.05 0.25 09/11/21 3:08 krh <br /> Carbon,total organic SM5310B 1 <1 U * mg/L 1 5 09/24/21 20:26 and <br /> (TOC)(1312-DI) <br /> Chloride(1312-DI) M300.0-Ion Chromatography 1 <0.4 U mg/L 0.4 2 09/11/21 3:08 krh <br /> Conductivity @25C SM2510B 1 87 * umhos/cm 1 10 09/14/21 18:03 eep <br /> (1312-DI) <br /> Fluoride(1312 DI) SM450OF-C 1 <0.15 U * mg/L 0.15 0.35 09/18/21 12:53 eep <br /> Hardness as CaCO3 SM2340B-Calculation 33 mg/L 0.2 5 09/30/21 0:00 calc <br /> (1312) <br /> Nitrate(1312 DI) Calculation: NO3NO2 minus NO2 3.33 H mg/L 0.06 0.3 09/30/21 0:00 calc <br /> Nitrate/Nitrite as N M353.2-Automated 3 3.33 H * mg/L 0.06 0.3 09/18/21 22:47 pjb <br /> (1312-DI) Cadmium Reduction <br /> Nitrite as N(1312-DI) M353.2-Automated 1 <0.01 UH * mg/L 0.01 0.05 09/18/21 22:42 pjb <br /> Cadmium Reduction <br /> Nitrogen,ammonia M350.1 Auto Salicylate 1 0.064 B * mg/L 0.05 0.2 09/26/21 22:55 syw <br /> (1312-DI) w/gas diffusion <br /> Phosphorus,ortho M365.1-Automated Ascorbic Acid 1 0.014 B * mg/L 0.01 0.05 09/11/212:18 pjb <br /> dissolved(1312-DI) <br /> Phosphorus,Total M365.1-Auto Ascorbic Acid 1 <0.01 U * mg/L 0.01 0.05 09/11/21 0:16 pjb <br /> (1312-DI) (digest) <br /> Residue, Filterable SM2540C 1 58 * mg/L 20 40 09/14/21 16:41 emk <br /> (TDS)@180C(1312) <br /> Residue, Non-Filter SM2540D 1 <5 U * mg/L 5 20 09/16/21 13:26 emk <br /> (TSS)@180C(1312- <br /> DI) <br /> Sulfate(1312-DI) M300.0-Ion Chromatography 1 4.48 mg/L 0.4 2 09/11/21 3:08 krh <br /> RE PI N.02.06.05.01 *Please refer to Qualifier Reports for details. <br /> L681 41-21 09301 047 Page 4 of 23 <br />