2019-10-10_HYDROLOGY - M1980244 (17)

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AraZ Laboratories, Inc. _ - 2773 Downhill Drive Steamboat Springs, CO 80487(800)334-5493 HCitasca Denver, Inc. ACZ Sample ID: L434O9-45 Project ID: HCT Date Sampled: 01129119 17:00 Sample ID: B5-HCT-WEEK43 Date Received: 03128118 Sample Matrix: Leachate Metals Analysis Parameter EPA Method Dilution Result Qual X0 Units MDL POL Calcium,dissolved M200.71CP 1 2.1 mg/L 0.1 0.5 01/30/19 19:43 dcm Iron,dissolved M200.71CP 1 U mg/L 0.02 0.05 01/31/19 12:35 dcm Magnesium,dissolved M200.7 ICP 1 1.3 * mg/L 0.2 1 01/30/19 19:43 dcm Soil Analysis MethodParameter EPA Dilution Result Qual XQ Units MDL PQL . Conductivity—Humidity SM2510B 1 119 * umhos/cm 1 10 01/28/19 9:10 dbt Cell Test End of leach volumes D5744-12 and mass Interstitial Weight 1 106 g 01/28/19 0:00 dbt Leachate Volume 1 1000 mL 01/28/19 0:00 dbt Added Leachate Volume 1 895 g 01/28/19 0:00 dbt Recovered Oxidation Reduction D1498-08 1 512 my 1 1 01/28/19 9:10 dbt Potential(Eh) pH,Humidity Cell Test M9045D/M9040C pH 1 5.3 units 0.1 0.1 01/28/19 0:00 dbt pH measured at 1 20.4 * C 0.1 0.1 01/28/19 0:00 dbt Wet Chemistry 'Parameter EPA Method Dilution Result Qual XQ Units MDL PQL Date Analyst Acidity as CaCO3 SM2310B-Titration 1 32 mg/L 10 20 02/05/19 11:17 kja Alkalinity as CaCO3 SM2320B-Titration Bicarbonate as 1 U * mg/L 2 20 02/01/19 0:00 enb CaCO3 Carbonate as CaCO3 1 U mg/L 2 20 02/01/19 0:00 enb Hydroxide as CaCO3 1 U mg/L 2 20 02/01/19 0:00 enb Total Alkalinity 1 U mg/L 2 20 02/01/19 0:00 enb Sulfate D516-02/-07-Turbidimetric 5 40.3 mg/L 5 25 02/06/1913:09 wtc REPIN.02.06.05.01 *Please refer to Qualifier Reports for details. HCT1902181608 Page 29 of 78