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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: L43413-43 <br /> Project ID: HCT Date Sampled: 01115119 17:00 <br /> Sample ID: 12-HCT-WEEK41 Date Received: 03/28/18 <br /> Sample Matrix: Leachate <br /> Metals Analysis <br /> Parameter EPA Method Dilution Result Qual XQ Units MDL POL Date Analyst <br /> Calcium,dissolved M200.7 ICP 1 0.6 mg/L 0.1 0.5 01/17/19 21:55 dcm <br /> Iron,dissolved M200.7 ICP 1 2.66 mg/L 0.02 0.05 01/17/19 21:55 dcm <br /> Magnesium,dissolved M200.7 ICP 1 1.1 * mg/L 0.2 1 01/17/19 21:55 dcm <br /> Soil Analysis <br /> MethodParameter EPA Dilution Result • • Units MDL _PQL Date Analyst <br /> Conductivity—Humidity SM2510B 1 288 umhos/cm 1 10 01/14/19 9:14 dbt <br /> Cell Test <br /> End of leach volumes D5744-12 <br /> and mass <br /> Interstitial Weight 1 140 g 01/14/19 0:00 dbt <br /> Leachate Volume 1 1000 mL 01/14/19 0:00 dbt <br /> Added <br /> Leachate Volume 1 886 g 01/14/19 0:00 dbt <br /> Recovered <br /> Oxidation Reduction D1498-08 1 460 my 1 1 01/14/19 9:14 dbt <br /> Potential(Eh) <br /> pH, Humidity Cell Test M9045D/M9040C <br /> pH 1 3.5 units 0.1 0.1 01/14/19 0:00 dbt <br /> pH measured at 1 19.2 C 0.1 0.1 01/14/19 0:00 dbt <br /> Wet Chemistry <br /> MethodParameter EPA • Units MDL POL Date Analyst!as CaCO3 SM2310B-Titration 1 103 * mg/L 10 20 01/22/19 11:59 mh <br /> Alkalinity as CaCO3 SM2320B-Titration <br /> Bicarbonate as 1 U * mg/L 2 20 01/22/19 0:00 kja <br /> CaCO3 <br /> Carbonate as CaCO3 1 U mg/L 2 20 01/22/19 0:00 kja <br /> Hydroxide as CaCO3 1 U mg/L 2 20 01/22/19 0:00 kja <br /> Total Alkalinity 1 U mg/L 2 20 01/22/19 0:00 kja <br /> Sulfate D516-02/-07-Turbidimetric 5 84.7 mg/L 5 25 01/17/19 15:44 Wtc <br /> REPIN.02.06.05.01 *Please refer to Qualifier Reports for details. <br /> HCT1902181608 Page 51 of 78 <br />