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was installed on the discharge culvert, and the presettling pond was <br />removed. Additional dredging (and dewatering) occurred in the fall of <br />2004. Also affecting discharges from this pond was the pumping of water <br />from this pond for water trucks (last significant amounts were in 2007) <br />and the pumping of water into this pond from the mine water supply well, <br />WTC201 (last significant amounts were in 2000). <br />Review of the TDS plot indicates an increasing trend. Baseline data for <br />this site (WSH6) has been provided in Appendix Elof the 2010 AHR. <br />- Surface Water Site SW- S2W --FG1 (WSHF1) . This site is located on <br />Hubberson Gulch downstream of the 006 Gulch confluence. It has been <br />monitored since July 1979. Irrigation ditches were established adjacent <br />this site in July 1999. The TDS plot indicates an increasing trend. <br />However, the peak TDS value occurred in September 2007. Baseline water <br />quality statistics have been provided in Appendix El of the 2010 AHR. <br />- NPDES 005 <br />(NPDES5). This sediment pond is located in the north mining <br />area on a tributary <br />to Dry Creek <br />referred to as the 005 Gulch. <br />Mining in <br />this basin <br />started in November 1992. Construction of this <br />pond was <br />completed in July 1992 and the <br />first discharge occurred on <br />April. 22, <br />1993. This <br />pond was dredged in <br />the summers of 1998 and 2001. <br />The water <br />year average <br />flows values <br />since <br />this pond began to discharge are: <br />2011 <br />0.214 <br />cfs <br />(monthly measurements) <br />2010 <br />0.018 <br />cfs <br />(monthly measurements) <br />2009 <br />0.060 <br />cfs <br />(monthly measurements) <br />2008 <br />0.083 <br />cfs <br />(monthly measurements) <br />2007 <br />0.038 <br />cfs <br />(monthly measurements) <br />2006 <br />0.038 <br />cfs <br />(monthly measurements) <br />2005 <br />0.021 <br />cfs <br />(monthly measurements) <br />2004 <br />0.017 <br />cfs <br />(monthly measurements) <br />2003 <br />0.026 <br />cfs <br />(monthly measurements) <br />2002 <br />0.016 <br />cfs <br />IF <br />2001 <br />0.018 <br />cfs <br />IF <br />2000 <br />.0.024 <br />cfs <br />(from monthly measurements as <br />of 12/99) <br />1999 <br />0.057 <br />cfs <br />(weekly measurements) <br />14 <br />