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COLORADO LEGACY LAND <br /> 4601 DTC Boulevard,Suite 130,Denver, CO 80237 <br /> T. (303)862-3928 <br /> March XXX,2019 <br /> Mr.Michael Cunningham <br /> Division of Reclamation,Mining,and Safety <br /> Department of Natural Resources <br /> 1313 Sherman Street,Room 215 <br /> Denver,CO 80203 <br /> Subject: Schwartzwalder Mine,Permit No.M-1977-300,First Quarter 2019 Sampling Results <br /> Dear Mr.Cunningham: <br /> The first quarter sampling event at the Schwartzwalder Mine was conducted by Alexco Water and Environment <br /> (Alexco)field staff on January TBD-TBD,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 1 summarizes <br /> surface water field parameters.The analytical laboratory data report and the chain of custody are <br /> attached to this report. <br /> • Groundwater Data:There are twenty-four quarterly groundwater monitoring well (MW) sampling <br /> locations. Figure 2 shows the location of each MW. Table 2 summarizes groundwater field <br /> parameters. The analytical laboratory data report and the chain of custody are attached to this report. <br /> • Mine Pool Elevations:Table 3 summarize the mine pool elevations for the quarter. <br /> PAGE 11 OF 24 <br />