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r <br /> AraZ Laboratories, Inc. _ <br /> 2773 Downhill Drive Steamboat Springs, CO 80487(800)334-5493 • <br /> Golder Associates ACZ Sample ID: L52434-02 ' <br /> Project ID: 19121576 Date Sampled: 06112119 13:10 <br /> Sample ID: MW-2 Date Received: 06113119 ' <br /> Sample Matrix: Groundwater <br /> Wet Chemistry <br /> EPA Method Dilution Result Qual X0 Units MDL P61L D. <br /> Alkalinity as CaCO3 SM2320B-Titration <br /> Bicarbonate as 1 1090 H mg/L 2 20 07/08/19 0:00 nmc <br /> CaCO3 <br /> Carbonate as CaCO3 1 UH mg/L 2 20 07/08/19 0:00 nmc <br /> Hydroxide as CaCO3 1 UH mg/L 2 20 07/08/19 0:00 nmc ' <br /> Total Alkalinity 1 1090 H mg/L 2 20 07/08/19 0:00 nmc <br /> Cation-Anion Balance Calculation <br /> Cation-Anion Balance -3.1 % 08/22/19 0:00 calc <br /> Sum of Anions 115 meq/L 08/22/19 0:00 calc <br /> Sum of Cations 108 meq/L 08/22/19 0:00 calc <br /> Chloride M300.0-Ion Chromatography 50 3340 mg/L 20 100 06/24/19 17:29 krh <br /> Cyanide, Free D6888-09/OIA-1677-09 1 0.004 B mg/L 0.003 0.01 06/18/19 14:07 rbt <br /> Fluoride SM450OF-C 1 1.6 mg/L 0.1 0.4 06/18/1914:30 enb <br /> Nitrate as N,dissolved Calculation: NO3NO2 minus NO2 U mg/L 0.02 0.1 08/22/19 0:00 calc <br /> Nitrate/Nitrite as N, M353.2-Automated 1 U mg/L 0.02 0.1 06/13/19 23:54 pjb <br /> dissolved Cadmium Reduction ' <br /> Nitrite as N,dissolved M353.2-Automated 1 U mg/L 0.01 0.05 06/13/19 23:28 pjb <br /> Cadmium Reduction <br /> pH(lab) SM4500H+B 1 8.0 H units 0.1 0.1 06/20/19 21:33 enb <br /> Residue,Filterable SM2540C 5 6310 mg/L 100 200 06/18/19 10:47 oah/en ' <br /> (TDS)@180C b <br /> Sulfate M300.0-Ion Chromatography 50 U mg/L 20 100 06/24/19 17:29 km <br /> TDS(calculated) Calculation 6460 mg/L 08/22/19 0:00 calc <br /> TDS(ratio- Calculation 0.98 08/22/19 0:00 calc ' <br /> measured/calculated) <br /> r <br /> 1 <br /> r <br /> r <br /> r <br /> r <br /> REPIN.02.06.05.01 *Please refer to Qualifier Reports for details. <br /> L52434-1908281443 Page 6 of 55 ' <br />