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GOLORADO LEGACY LAND RECEIVED <br /> 4601 DTC Boulevard,Suite 120,Denver,CO 80237 <br /> T.(303)862-3928 MAY 0 O 70 1 g <br /> May 3,2019 <br /> [r.Michael Cunningham and Ms.Amy Eschberger T1` <br /> Division of Reclamation,Mining,and Safety <br /> Department of Natural Resources <br /> 1313 Sherman Street,Room 215 <br /> Denver,CO 80203 <br /> Subject: First 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 first quarter sampling event at the Schwartzwalder Mine was conducted by Alexco Water and Environment <br /> Inc.(Alexco)field staff on February 25-28,2019. <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 A copy of the electronic data deliverable(EDD)excel file for these samples are <br /> 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 2 summarizes groundwater field <br /> parameters. The analytical laboratory data report and the chain of custody are attached to this report. <br /> A copy of the EDD excel file for these samples are 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 /> Jim Harrington,Managing Director <br /> COLORADO LEGACY LAND <br /> UmPColoradol,egacy.Land <br /> cc: <br /> Paul Newman-CLL,Managing Director,paulftcoloradolegacyJand <br /> Eric Williams-CLL,Managing Director,eric0coloradolegac, .land <br /> Billy Ray-Alexco Water&Environment Inc,Site Manager,brayPalexcoresource.coni <br />