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Location Estimated discharge <br />Lowermost West Ridge <br />Pond >25 gpm <br />Southern Moffat Spoil <br />Springs (flowing into Significant flow beneath <br />south end of Moffat boulders <br />pond) <br />Moffat pond discharge >100 gpm <br />(NPDES outfall 004) <br />Impact to Trout Creek -To assess the impact of Edna Mine's spoil spring dischargs on Trout Creek, I <br />measured field conductivity in the creek upstream and downstream from the Edna Mine. Field <br />conductivity was ] ] 0 umhos/cm immediately upstream from the mine, and was 300 umhos/cm <br />approximately 4 miles downstream from the mine. These values indicate that the spoil spring <br />discharges were not causing an exceedance of Trout Creek's 1000 umhos/cm material damage suspect <br />level for irrigation water. <br />Monitoring wells -Spoil well WR-]'s surface casing was in good condition and a cap was in place. <br />SUPPORT FACILITIES <br />No problems were found in the former lower facilities area next to Oak Creek. <br />REVEGETATION <br />Cover and diversity. Plant growth is much thicker throughout the site than last spring's growth during <br />the drought. Cover is relatively sparse in the non-topsoiled portion of the West Ridge area, southwest <br />of the West Ridge Road. The topsoiled parts of the West Ridge area were relatively densely covered <br />with alfalfa, yellow sweet clover, a vaziety of grasses, and lesser amounts of sage brush and bitter <br />brush. Moffat area cover and diversity appears good. Woody shrubs are coming along well. Cover is <br />good on the reclaimed former conveyor belt strip next to the Goat Trail and appears to be controlling <br />erosion. <br />Weeds. Weed control is needed on the conveyor belt corridor where there are patches of Whitetop <br />(Hoary cress) and abundant houndstongue. A patch of thistle needs control on the reclaimed slope on <br />east side of the Lower Moffat Road, just south of the switchback that leads down to the Moffat pond <br />(SW 1/4 Sec. 31). <br />SLIDES AND DAMAGE <br />Slopes appeared stable throughout the site. No slope instability was evident on the hillslope above Oak <br />Creek . I drove up the Goat Trail to check for erosional and slope stability (and vegetative cover). No <br />problems were found. The small slide area noted in last month's report appears to be stable. The <br />operator has removed rocks from the Goat Trai] road. <br />4 <br />