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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-61.3 / 3.4 / 71% <br />POC-91.5 / 2.8 / 50% <br />POC-150.4 / 0.63 / 0% <br />POC-50.96 / 1.4 / 86% <br />POC-20.39 / 0.67 / 0% <br />POC-10.26 / 0.46 / 0% <br />POC-140.48 / 0.7 / 0% <br />POC-80.58 / 1.2 / 29% <br />POC-160.33 / 0.56 / 0% <br />POC-30.056 / 0.08 / 0% <br />POC-130.49 / 0.55 / 0% <br />POC-120.82 / 1.2 / 43% <br />POC-110.49 / 0.66 / 0% <br />POC-100.29 / 0.41 / 0% <br />NGSW0.75 / 1.3 / 62% <br />MT-95-020.015 / 0.015 / 0% <br />GOSSARD WELL0.046 / 0.67 / 0% <br />Mil k CreekWilso n C r e ek 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:Manganese Concentrations compared toDowngradient Well Background UTL = 0.75 mg/lUTL = Upper Tolerance 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 Result (Avg/Max/% Exceeda nce) <br />!(Average Below Background <br />!(Average Above Background <br />Temporary Well Sample Result (Avg/M ax/% E xceedance) <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 7b Colowyo MineTemporary Monitoring Wells Dissolved Manganese 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