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It M-ft' 'Celvallo <br /> COLORADO LEGACY LAND OCT 01 2019 <br /> 4601 DTC Boulevard,Suite 120,Denver, CO 80237 <br /> T.(303)862-3928 "'`V"�ON M 17, M M KNW & G 1 f <br /> September 30,2019 <br /> Mr.Michael Cunningham and Ms.Amy Eschberger <br /> Colorado Division of Reclamation,Mining,and Safety <br /> Department of Natural Resources <br /> 1313 Sherman Street,Room 215 <br /> Denver CO 80203 <br /> Subject: Second Quarter 2019 Sampling Results, <br /> Schwartzwalder Mine,Golden Colorado, <br /> Mine Land Reclamation Permit No.M-1977-300. <br /> Dear Mr.Cunningham and Ms.Eschberger: <br /> The second quarter sampling event at the Schwartzwalder Mine was conducted by Alexco Water and <br /> Environment Inc. (Alexco) field staff on June 3-12,2019. <br /> • Surface Water Data: There are thirteen quarterly surface water(SW) sampling locations. Figure 1 <br /> shows the location of each surface water sample locations along Ralston Creek. Table 1a summarizes <br /> surface water field parameters.Table 1b summarizes the analytical data results.The analytical <br /> laboratory data report and the chain of custody are attached to this report.A copy of the electronic <br /> data deliverable(EDD) excel file for these samples are included in this submittal. <br /> • Groundwater Data:There are twenty-four quarterly groundwater monitoring well (MW) sampling <br /> locations. Figure 2 shows the location of each MW. Table 2a summarizes groundwater field <br /> parameters. Table 2b summarizes the analytical data results.The analytical laboratory data report and <br /> the chain of custody are attached to this report. A copy of the EDD excel file for these samples are <br /> included in this submittal. <br /> • Mine Pool Elevations:Table 3 summarize the mine pool elevations for the quarter. <br /> If you have any questions regarding this letter,please don't hesitate to contact me. <br /> Sincerely, <br /> y <br /> - A. <br /> Jim Harrington,Managing Director <br /> COLORADO LEGACY LAND <br /> lim@ColoradoLegacy Land <br /> cc: <br /> Paul Newman-CLL,Managing Director,paul(@coloradolegacy.land <br /> Eric Williams-CLL,Managing Director,eric@coloradolegacy.land <br /> Billy Ray-Alexco Water&Environment Inc,Site Manager,bray@alexcoresource.com <br /> PAGE 1 OF 12 <br />