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1988 <br />1987 <br />1986 <br />1985CY (Calendar Year) <br />1984CY <br />1983CY <br />= 0.180 cfs it <br />= 0.110 cfs <br />= 0.294 cfs if <br />= 0.357 cfs <br />= 0.447 cfs <br />= 0.154 cfs (reservoir did not completely <br />fill until March 7, 1983) <br />This year's average flow value, 0.146 cfs, is 42% below the historic <br />(1983-2009) average flow value, 0.252 cfs. The timing of when flow <br />values are collected affects these averages. Flow values from the 004 <br />Pond have also been affected by the reduced diameter of the discharge <br />culvert modified on May 29, 1987 (36 inches to 6 inches). In August <br />2005, the discharge culvert was replaced with an 8 inch diameter plastic <br />culvert set approximately one foot above the previous elevation. Review <br />of the TDS plot (SF 0.5) indicates a recently stable trend, with the <br />peak value occurring in September 2005. <br />- Surface Water Site SW-S2-10 (SSC10 . This site monitors Cow Camp <br />Creek at its confluence with Fish Creek. It is monitored May through <br />July on a monthly basis. This site usually dries up in late summer, <br />although NPDES4 upstream flows continuously. This reduction in flow is <br />due to stream channel infiltration, evapotranspiration and the absence <br />of lateral inflow from tributaries to Cow Camp Creek. The TDS plot <br />reveals a recently decreasing trend. <br />- NPDES Discharge Point 008 (NPDES8). The annual average flow values <br />for the water year since this pond began to flow are: <br />2009 = 0.098 cfs (monthly measurements) <br />2008 = 0.117 cfs <br />2007 = 0.143 cfs IT <br />2006 = 0.103 cfs n <br />2005 = 0.107 cfs n <br />2004 = 0.125 cfs of <br />2003 = 0.168 cfs <br />2002 = 0.083 cfs <br />11