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!A <br />!A <br />!A <br />!A <br />!A <br />!A <br />!A <br />!A <br />!A <br />!A <br />!A <br />!A <br />!A <br />!A <br />!( <br />!( <br />!( <br />POC-21400 / 1500 / 0% <br />POC-11400 / 1600 / 0% <br />POC-91100 / 1500 / 0% <br />POC-81100 / 1600 / 0% <br />POC-62700 / 5100 / 86% <br />POC-51900 / 2400 / 86% <br />POC-111600 / 1800 / 0% <br />POC-101300 / 1600 / 0% <br />POC-151600 / 2000 / 14% <br />POC-32400 / 2500 / 100% <br />POC-132300 / 2800 / 86% <br />POC-163800 / 4100 / 100% <br />POC-143200 / 5400 / 100% <br />POC-123100 / 3500 / 100% <br />NGSW1900 / 2200 / 71% <br />MT-95-022300 / 2600 / 100% <br />GOSSARD WELL1800 / 2200 / 33% <br />Mil k CreekWilson C r e e k JubbCreekTaylorCreekGoodSpringCr eek <br />Co Rd 17 <br />State Hwy 13Co Rd 51Moffat County Rd 180 <br />Co Rd 32 <br />14 <br />27 <br />34 <br />35 <br />26 <br />36 <br />22 <br />36 <br />31 <br />25 <br />23 <br />15 <br />35 <br />24 <br />13 <br />34 <br />31 <br />30 <br />18 <br />19 <br />11 <br />3025 <br />10 12 <br />2627 <br />32 <br />07 <br />16 <br />29 <br />21 <br />32 <br />28 29 <br />33 <br />20 <br />17 <br />09 <br />06030201 05 <br />08 <br />04 <br />4N 93W 4N 92W <br />5N 93W 5N 92W <br />3N 93W 3N 92W <br />M o f f a t C o u n t y <br />Coordinate System:NAD 1983 State Plane,Colorado North Zone, FeetNotes:TDS Concentrations compared toDowngradient Well Background UTL = 1840 mg/lUTL = Upper Tolrance Limit with 95% ConfidenceStatistics for Permanent Wells NGSW, MT-95-02, and Gossard Well based on sampling from 2015 - 2020 <br />Legend <br />Permanent Well Sample R esu lt (Avg/M ax/% Exceedance) <br />!(Average Below Background <br />!(Average Above Background <br />Temporary Well Sample Result (Avg/M ax/% Exceedance) <br />!A Average Below Background <br />!A Average Above Background <br />Stream <br />Colowyo Mine Open Pit Extent <br />Ditch <br />Mine Permit Boundary <br />Township <br />Section <br />Pond <br />County Boundary <br />Road <br />Alluvial Valley <br />Figure 12b Colowyo MineTemporary Monitoring Wells Total Dissolved Solids Statistics(Pre-1994 Background)October 2019 to November 2020Rio Blanco and Moffat Counties, ColoradoFebruary 2021 <br />Designed <br />Drawn <br />Checked <br />Peer Review <br />Project Manager <br />Project Number <br />DE <br />DE <br />MS <br />MF <br />AB <br />60614862 <br />7595 Technology Way, Suite 200Denver, CO 80237, United StatesT +1-303-694-2770 <br />0 2,000 4,0001,000 <br />Scale in Feet <br />µ