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f # <br /> COLORADO LEGACY LAND <br /> 12150 E.Briorwood Ave.Suite 135,Centennial,CO 80112 Receivet, <br /> T.(303)862-3928 <br /> August 23,2021 AUG 2 <br /> v 2021 <br /> Colorado Department of Public Health and Environment DMSION OF RECLAMATION <br /> Water Quality Control Division/WQCD-132-CAS MINING AND SAFETy <br /> Compliance Assurance Section <br /> Attention: Eric Mink <br /> 4300 Cherry Creek Drive South <br /> Denver,CO 80246-1530 <br /> Subject: June 2021 SW-AWD and SW-BPL Surface Monitoring Data for Sampling Stations, <br /> Schwartzwalder Mine,Paragraph 26,WQCD Order Number: 10 100601-1,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.This data originates <br /> from the analysis of surface water samples collected in June 2021 at the Schwartzwalder Mine, monitoring <br /> stations SW-AWD and SW-BPL.Review of the data indicates that the total and dissolved uranium concentrations <br /> at SW-AWD and SW-BPL were below 30 µg/L. <br /> These results are being reported later than typical due to extended turnaround times from the subcontract <br /> laboratory ACZ. In June and July,ACZ experienced difficulties with tracer recovery for Radium-228 analysis.As <br /> a result,samples were re-analyzed which extended the sample turnaround time and subsequent reporting. <br /> If you have any questions,please don't hesitate to contact me. <br /> Sincerely, <br /> y - A. <br /> Jim Harrington,Managing Director <br /> COLORADO LEGACY LAND <br /> Jim@ColoradoLegac, <br /> Distribution List: <br /> Dan Arnold,Denver Water,1 electronic copy via weblink,Daniel.Arnold@DenverWater.org <br /> Eric Mink,CDPHE, 1 electronic copy via weblink,Eric.Mink@state.co.us <br /> Amy Eschberger,DRMS, 1 electronic copy via weblink and 1 hard copy via FedEx, <br /> amy.eschberger@state.co.us <br /> Billy Ray,Ensero Solutions, 1 electronic copy,bray0ensero.com <br /> Brad Wyant,City of Arvada, 1 electronic copy,bwyant0arvada.o <br /> Evelyn Rhodes,City of Arvada,1 electronic copy,erhodes0arvada.org <br /> PAGE 1 OF 2 <br />