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1990 = 0.067 cfs rr <br />1989 = 0.108 cfs ry <br />1988 = 0.104 cfs (reservoir did not completely <br />fill until February 25, 1988) <br />This year's average flow value, 0.372 cfs, is 39% above the historic <br />(1988 -2011) average flow value, 0.281 cfs. The timing of when flow <br />values are collected affects these averages. Due to high sediment <br />levels, this pond was dredged out in 2002. In April 2005, it was noted <br />that the discharge pipe riser had rusted out. It was replaced in July <br />2005 with an eight inch plastic pipe set at an elevation approximately <br />four feet above the elevation of the old dewatering orifice. No flow <br />occurred after the repair until October 2005. Review of the TDS plot <br />indicates a stable trend (SF 0.5), with the peak value occurring in July <br />2007. <br />-- Surface Water Site SW- -S2 -12 (SSB12). This site monitors Bond Creek at <br />its confluence with Fish Creek. It is monitored in June and July on a <br />monthly basis. This site usually dries up in late summer, although <br />NPDES8 upstream flows continuously. This reduction in flow is due to <br />stream channel infiltration and evapotranspiration. This year, this site <br />was flowing in both June and July. The TDS plot indicates a decreasing <br />trend. <br />- Surface Water Site SW- -S2 -11 (SSF11). This site monitors Fish Creek <br />upstream of its confluence of Cow Camp Creek. It is required to be <br />monitored in June and July on a monthly basis, but only if either Sites <br />10 (Cow Camp Creek) or 12 (Bond Creek) are flowing (for this year, both <br />months). However, field parameters and flow estimates may sometimes be <br />provided voluntarily when not required. This site is upstream of Seneca <br />II Mine discharges. The TDS plot indicates a decreasing trend. <br />- Surface Water Site SW- S2--13 (SSF13). This site monitors Fish Creek <br />downstream of its confluences with Cow Camp Creek and Bond Creek. It is <br />monitored at the same frequency as Site 11. The increase in TDS values, <br />from Site 11 to Site 13, was from 220 to 240 mg /l (9% increase) in June; <br />N <br />