Laserfiche WebLink
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 decreasing 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 normally monitored in <br />June and July on a monthly basis. This year it was sampled in June, and <br />no flow was observed the rest of the year. This site usually dries up in <br />late summer, although NPDES4 upstream flows continuously. This reduction <br />in flow is due to stream channel infiltration, evapotranspiration and <br />the absence of lateral inflow from tributaries to Cow Camp Creek. The <br />TDS plot reveals a decreasing trend. <br />Little Grassy Creek Drainage. Two monitoring sites lie within the Little <br />Grassy Creek drainage: SSLG5, located in the upper part of Little Grassy <br />Creek, and NPDES Discharge Point 002, also known as the Wadge <br />Impoundment or Pond 002. <br />- Surface Water Site SW -S2 -5 (SSLG5) . Site 5 drains the upper reaches <br />of Little Grassy Creek which are undisturbed by mining. A comparison of <br />its hydrograph to that of NPDES2 indicates that Site 5 is a relatively <br />minor contributor to the flow in this basin. The TDS plot indicates a <br />slightly decreasing trend. <br />- NPDES Discharge Point 002 (NPDES2). Hydrographs are presented in <br />Appendix D. The hydrographs consist of two pages, the first is for data <br />the past two years, and the second shows all historical data. The <br />following table lists the average flow values for each water year. <br />2014 = 0.713 cfs (monthly measurements) <br />2013 = 0.838 cfs " <br />2012 = 0.434 cfs " <br />2011 = 2.286 cfs " <br />2010 = 0.460 cfs " <br />2009 = 0.630 cfs " <br />11 <br />