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AraZ Laboratories, Inc. <br /> 2773 Downhill Drive Steamboat Springs, CO 80487(800)334-5493 <br /> HCltasca Denver, Inc. ACZ Sample ID: L43414-32 <br /> Project ID: HCT Date Sampled: 10130118 17:00 <br /> Sample ID: PC3-HCT-WEEK30 Date Received: 03/28/18 <br /> Sample Matrix: Leachate <br /> Soil Analysis <br /> �. <br /> Method <br /> 'Parameter EPA • •Q <br /> Conductivity—Humidity SM2510B 1 363 H * umhos/cm 1 10 10/29/2108 9:15 dbt <br /> Cell Test <br /> End of leach volumes D5744-12 <br /> and mass <br /> Interstitial Weight 1 75 g 10/29/18 0:00 dbt <br /> Leachate Volume 1 1000 mL 10/29/18 0:00 dbt <br /> Added <br /> Leachate Volume 1 925 g 10/29/18 0:00 dbt <br /> Recovered <br /> Oxidation Reduction D1498-08 1 458 H my 1 1 10/29/2108 9:15 dbt <br /> Potential(Eh) <br /> pH,Humidity Cell Test M9045D/M9040C <br /> pH 1 3.5 units 0.1 0.1 10/29/2108 0:00 dbt <br /> pH measured at 1 20.7 C 0.1 0.1 10/29/2108 0:00 dbt <br /> Wet Chemistry <br /> Method'Parameter EPA Dilution Result Qual XQ Units MDL PQL Date Analyst <br /> Acidity as CaCO3 SM23106-Titration 1 95 mg/L 10 20 11/06/18 12:03 kja <br /> Alkalinity as CaCO3 SM2320B-Titration <br /> Bicarbonate as 1 U mg/L 2 20 11/05/18 0:00 enb <br /> CaCO3 <br /> Carbonate as CaCO3 1 U mg/L 2 20 11/05/18 0:00 enb <br /> Hydroxide as CaCO3 1 U * mg/L 2 20 11/05/18 0:00 enb <br /> Total Alkalinity 1 U mg/L 2 20 11/05/18 0:00 enb <br /> Chloride SM4500CI-E 1 U mg/L 0.5 2 11/04/1814:41 wtc <br /> Cyanide,WAD SM4500-CN 1,E- 2.5 U mg/L 0.02 0.05 11/06/18 16:31 ttg <br /> Colorimetric w/distillation <br /> Fluoride SM450OF-C 30 13 mg/L 2 8 11/06/1817:03 emk <br /> Nitrate/Nitrite as N M353.2-H2SO4 preserved 1 U mg/L 0.02 0.1 11/08/18 0:08 pjb <br /> Residue, Filterable SM2540C 1 202 mg/L 10 20 11/02/18 16:20 emk <br /> (TDS)@180C <br /> Sulfate D516-02/-07-Turbidimetric 5 110 mg/L 5 25 11/05/18 10:09 rbt <br /> REPIN.02.06.05.01 *Please refer to Qualifier Reports for details. <br /> HCT1811150946 Page 59 of 75 <br />