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4 <br /> COLORADO LEGACY LAND <br /> 4601 DTC Boulevard,Suite 120,Denver,CO 80237 <br /> T.(303)862-3928 <br /> October 19,2020 ® 11 7ED <br /> Colorado Department of Public Health and Environment OCT 212020 <br /> Water Quality Control Division/WQCD-B2-CAS <br /> Compliance Assurance Section DIVISION OF RECLAMATION <br /> Attention:Eric Mink MINING AND SAFETY <br /> 4300 Cherry Creek Drive South <br /> Denver,CO 80246-1530 <br /> Subject: September 2020 SW-AWD and SW-BPL Surface Monitoring Data for Sampling Stations, <br /> Schwartzwalder Mine,Paragraph 26,WQCD Order Number: I0100601-1,June1,2010, <br /> Schwartzwalder Mine,Golden,Colorado <br /> Dear Mr.Mink: <br /> Pursuant to Paragraph 26 of the above referenced Order, please find enclosed data reports from contract <br /> laboratories as received by Ensero Solutions, Inc working on behalf of Colorado Legacy Land. These data <br /> originate from the analysis of surface water samples collected in September 2020 at the Schwartzwalder Mine, <br /> monitoring station SW-BPL. Ralston Creek was dry at the upgradient sample location SW-AWD during <br /> September 2020 and was not sampled.However,Ralston Creek was flowing at the downgradient sample location <br /> SW-BPL and a sample was collected. Review of the data indicates that the total and dissolved uranium <br /> concentrations at SW-BPL were below 30 jig/L. <br /> If you have any questions,please don't hesitate to contact me. <br /> Sincerely, <br /> y - A. A <br /> Jim Harrington,Managing Director <br /> COLORADO LEGACY LAND <br /> Jim@ColoradoLegacv.Land <br /> Distribution List: <br /> Dan Arnold,Denver Water,1 electronic copy via weblink,Dan iel.Arnold0DenverWater.ore <br /> Eric Mink,CDPHE, 1 electronic copy via weblink,Eric.Mink@state.co.us <br /> Michael Cunningham,DRMS, 1 electronic copy via weblink and 1 hard copy via FedEx, <br /> michaela.cunningham@state.co.us <br /> Billy Ray,Ensero Solutions, 1 electronic copy,bray@ensero.com <br /> PAGE 1 OF 2 <br />