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COLORADO LEGACY LAND <br /> 335 W.Hampden Ave.,Suite 935 Englewood,CO 80110 <br /> October 19,2022 <br /> RECEIVED <br /> Colorado Department of Public Health and Environment <br /> Water Quality Control Division/WQCD-B2-CAS OCT 2 6 2022 <br /> Compliance Assurance Section <br /> Attention:Eric Mink DIVISION OF RECLAMATION <br /> 4300 Cherry Creek Drive South MINING AND SAFETY <br /> Denver,CO 80246-1530 <br /> Subject: August 2022 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.This data originates <br /> from the analysis of the surface water samples collected in August 2022 at the Schwartzwalder Mine,monitoring <br /> station SW-BPL.Sample collection at monitoring station SW-AWD did not occur because Ralston Creek was dry. <br /> Review of the data indicates that the total and dissolved uranium concentrations at monitoring station SW-BPL <br /> were below 30 µg/L.The complete set of field parameters for monitoring station SW-BPL were not collected due <br /> to inoperable field instruments. <br /> If you have any questions,please don't hesitate to contact me. <br /> Sincerely, <br /> y <br /> — A. <br /> Jim Harrington,Managing Director <br /> COLORADO LEGACY LAND <br /> JimPColoradoLegacy.Land <br /> Distribution List: <br /> Dan Arnold,Denver Water,1 electronic copy via weblink, Daniel.ArnolditDenverWater.org <br /> Eric Mink,CDPHE, 1 electronic copy via weblink, Eric.Minkpstate.co.us <br /> Amy Eschberger,DRMS, 1 electronic copy via weblink and 1 hard copy via FedEx, <br /> amy.escbbergerOi state.coms <br /> Elizabeth Busby,Ensero Solutions, 1 electronic copy,ebusbyoc ensero.coni <br /> JoAnne AM Ensero Solutions, 1 electronic copy,jary0( ensero.com <br /> Brad Wyant,City of Arvada, 1 electronic copy,bwyantC)arvada.org <br /> Evelyn Rhodes,City of Arvada,1 electronic copy,erb odes Carvada.org <br /> PAGE 1 OF 2 <br />