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AraZ <br /> Laboratories, Inc. <br /> 2773 Downhill Drive Steamboat Springs, CO 80487(800)334-5493 <br /> HCItasca Denver, Inc. ACZ Sample ID: L43407-46 <br /> Project ID: HCT Date Sampled: 02105119 17:00 <br /> Sample ID: B2-HCT-WEEK44 Date Received: 03/28/18 <br /> Sample Matrix: Leachate <br /> Metals Analysis <br /> MethodParameter EPA Dilution Result Qual XQ Units MDL PQL Date-- Analyst <br /> Calcium,dissolved M200.7 1CP 1 3.2 mg/L 0.1 0.5 02/06/19 14:19 dcm <br /> Iron,dissolved M200.7 1CP 1 0.02 B mg/L 0.02 0.05 02/06/19 14:19 dcm <br /> Magnesium,dissolved M200.7 ICP 1 1.0 * mg/L 0.2 1 02/06/19 14:19 dcm <br /> Soil Analysis <br /> Parameter EPA-Method Dilution Result Qual XQ Units MDL POL Date Analyst <br /> Conductivity—Humidity SM2510B 1 32 * umhos/cm 1 10 02/04/19 9:08 dbt <br /> Cell Test <br /> End of leach volumes D5744-12 <br /> and mass <br /> Interstitial Weight 1 124 g 02/04/19 0:00 dbt <br /> Leachate Volume 1 1000 mL 02/04/19 0:00 dbt <br /> Added <br /> Leachate Volume 1 883 g 02/04/19 0:00 dbt <br /> Recovered <br /> Oxidation Reduction D1498-08 1 484 my 1 1 02/04/19 9:08 dbt <br /> Potential(Eh) <br /> pH,Humidity Cell Test M9045D/M9040C <br /> pH 1 7.6 units 0.1 0.1 02/04/19 0:00 dbt <br /> pH measured at 1 20.5 C 0.1 0.1 02/04/19 0:00 dbt <br /> Wet Chemistry <br /> MethodParameter EPA Qual XQ Units MDL PQL Date Analyst- <br /> Acidity as CaCO3 SM2310B-Titration 1 U mg/L 10 20 02/08/19 11:31 mh <br /> Alkalinity as CaCO3 SM2320B-Titration <br /> Bicarbonate as 1 10.6 B * mg/L 2 20 02/11/19 0:00 emk <br /> CaCO3 <br /> Carbonate as CaCO3 1 U mg/L 2 20 02/11/19 0:00 emk <br /> Hydroxide as CaCO3 1 U mg/L 2 20 02/11/19 0:00 emk <br /> Total Alkalinity 1 10.6 B * mg/L 2 20 02/11/19 0:00 emk <br /> Sulfate D516-02/-07-Turbidimetric 1 4.2 B mg/L 1 5 02/06/19 13:01 Wtc <br /> REPIN.02.06.05.01 *Please refer to Qualifier Reports for details. <br /> HCT1902181608 Page 18 of 78 <br />