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COLORADO LEGACY LAND <br /> RECEWR <br /> 4601 DTC Boulevard,Suite 130,Denver,CO 80237 <br /> T.(303)862-3928 JUN 0 A 2018 <br /> DIVISION OF RECLAMATION <br /> June 1,2018 MINING AND SAFETY <br /> Colorado Department of Public Health and Environment <br /> Water Quality Control Division/WQCD-B2-CAS <br /> Compliance Assurance Section <br /> Attention: Eric Mink <br /> 4300 Cherry Creek Drive South <br /> Denver,CO 80246-1530 <br /> Dear Mr.Mink: <br /> Regarding: April 2018 SW-AWD and SW-BPL Surface Water Monitoring Data for Sampling Stations, <br /> Schwartzwalder Mine,Paragraph 26,WQCD Order Number:10 100601-1,June 1,2010 <br /> Pursuant to Paragraph 26 of the above referenced Order, please find enclosed data reports from contract <br /> laboratories as received by Alexco Water and Environment, Inc. These data originate from the analysis of <br /> surface water samples collected in April 2018 at the Schwartzwalder Mine, monitoring stations SW-AWD and <br /> SW-BPL.A review of the data indicates that the total and dissolved uranium concentration at SW-BPL were <br /> below the 30-µg/L limit.Our review also indicates that arsenic was not detected at SW-BPL. <br /> If you have any questions regarding this deliverable,please do not hesitate to contact me. <br /> Sincerely, <br /> Z. <br /> Jim Harrington,Managing Director <br /> COLORADO LEGACY LAND <br /> Jim@ColoradoLegacy.Land <br /> Distribution list: <br /> Eric Mink,CDPHE,via email,Eric.Mink@state.co.us <br /> Daniel Arnold,Denver Water,via email Daniel.Arnold@DenverWater.org <br /> Michael Cunningham,DRMS,via email and 1 hard copy via FedEx, michaela.cunningham@state.co.us <br /> Billy Ray,Alexco Water and Environment Inc.,via email,bray@alexcoresource.com <br /> PAGE 1 OF 2 <br />