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Discharges -The following discharges were noted. <br />Location Estimated discharge <br />CPDS ouffall 001 (Tipple d <br />pond #4) ry <br />CDPS outfall 004 (Moffat trickle <br />pond culvert) <br />CPDS ouffall 007 (below > 200 gpm <br />Center Ridge pond) <br />Spoil Spring 1 >200 gpm <br />Old irrigation ditch below <br />Center Ridge pond (Spoil >200 gpm <br />spring 1 flow) <br />Center Ridge pond <br />discharge (mixes with >50 gpm <br />flow from ditch) <br />Seep 23 (at Center Ridge <br />pond) Significant seepage in <br />grassy area <br />Lowermost West Ridge <br />Pond >25 gpm <br />Southern Moffat Spoil <br />Springs (flowing into Seepage evident beneath <br />south end of Moffat boulders <br />pond) <br />Moffat pond discharge trickle <br />(NPDES outfall 004) <br />Impact to Trout Creek -To assess the impact of Edna Mine's spoil spring discharges on Trout Creek, I <br />measured field conductivity in the creek upstream and downstream from the Edna Mine. I made the <br />measurements on the day following the inspection. Field conductivity was 160 umhos/cm <br />immediately upstream from the mine, and was 560 umhos/cm approximately 4 miles downstream from <br />the mine. These values indicate that the spoil spring discharges were not causing an exceedance of <br />Trout Creek's 1000 umhos/cm material damage suspect level for irrigation water. <br />Monitoring wells -Spoil well WR-1's surface casing was in good condition and a cap was in place. <br />4 <br />