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III. COMMENTS -COMPLIANCE <br />Below are comments on the inspection. The comments include discussion of observations made during <br />the inspection. Comments also describe any enforcement actions taken during the inspection and the <br />facts or evidence supporting the enforcement action. <br />This was a partial inspection of the North Thompson Creek Mine conducted by Tom Kaldenbach of <br />the DBMS. Olivia Garcia of the White River National Forest went along on part of the inspection on <br />April 12 in the permanent water resources area. No one else was present. <br />The site was snow free, although light snow fell during part of the inspection. The site is greening up. <br />Hvdroloeic Balance <br />North Thompson Creek was running high and turbulent. The sediment control pond (pond 9) <br />contained a few feet of muddy water and was well below the principal spillway. The treatment ponds <br />were at operational capacity and appeazed to be functioning properly. Field parameters were measured <br />as shown in the following table. All discharges were clear water. (In table, nm =not measured.) <br /> Discharge <br />Temperature <br />Fe <br />Location (visual pH Ec (µS) (°F) (Chemets kit) <br /> estimate <br />Mine water discharge <br />from Mine 1 shaft (36" trickle 7.7 2178 49 nm <br />cmp) <br />Mine 1 discharge from < 25 gpm 7.3 2196 50 1 mg/1 <br />pipe into Long Pond <br />Pipe discharge from <br />treatment pond 2 (to <br />Thompson Creek, < 50 gpm 8.1 2056 57 nm <br />former CDPS outfall <br />001) <br />Fish and Wildlife <br />A variety of birds were spotted during the inspection, including adrake/hen pair of Mallazd ducks on <br />the Long Pond. <br />3 <br />