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EFCI Southfield Mine - 2008 Annual Hydrology Report April 15, 2009 <br />Review of historic stream flow data for Oak Creek indicates little variance between up stream and <br />down stream monitoring stations but significant reductions in flows for the past 7 years reflect <br />continuing drought conditions. <br />Historic field and laboratory water quality data for surface water monitoring stations on Oak Creek <br />are summarized in Tables 14 and 15, Water Quality Data, Oak Creek. Field and laboratory data for <br />2008 are provided in Appendix B. <br />Historically the two Loadout area sedimentation ponds have not held water or discharged to the <br />stream system. Similar to previous years, both ponds remained dry so there was no pond discharge <br />during 2008. <br />2008 AHR.aoc wa Page 20