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COLORADO LEGACY LAND <br /> 4601 DTC Boulevard,Suite 120,Denver, CO 80237 <br /> T.(303)862-3928 <br /> August S,2020 <br /> Colorado Department of Public Health and Environment RFc� <br /> Water Quality Control Division/WQCD-B2-CAS 400 'VAb <br /> Compliance Assurance Section / <br /> Attention: Eric Mink Dl�js/ `�?Q?0 <br /> Den4300 YV op <br /> verhC 80246-1D30 riva South M/NNGgNpcC44 <br /> Subject: July 2020 SW-AWD and SW-BPL Surface Monitoring Data for Sampling Stations, <br /> Schwartzwalder Mine,Paragraph 26, WQCD Order Number: 10 100601-1, Junel, 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 July 2020 at the Schwartzwalder Mine, <br /> monitoring station SW-BPL. Ralston Creek was dry at the upgradient sample location SW-AWD during July 2020 <br /> and was not sampled. However, Ralston Creek was flowing at the downgradient sample location SW-BPL and a <br /> sample was collected. Review of the data indicates that the total and dissolved uranium concentrations at SW- <br /> BPL were below 30 µg/L. <br /> If you have any questions, please don't hesitate to contact me. <br /> Sincerely, <br /> y <br /> &,- A. Art— <br /> Jim <br /> Harrington, Managing Director <br /> COLORADO LEGACY LAND <br /> Jim @Colorado Legacy.Land <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.MinkOstate.co.us <br /> Michael Cunningham, DBMS, 1 electronic copy via weblink and 1 hard copy via FedEx, <br /> michaela.cunningham@state.co.us <br /> Billy Ray,AWE, 1 electronic copy, bray0alexcoresource.com <br /> PAGE 1 OF 2 <br />