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flowing in April and stopped flowing in July. This year's average flow, <br />0.0900 cfs, is 217% above its historic (1998 -2011) average, 0.0284 cfs. <br />The timing of when flow values are collected affects these averages. Due <br />to high sediment level, this pond was dredged out in the fall of 2003. <br />TDS values exhibit an increasing trend. <br />- Site YSGF5. This site exists on Grassy Creek below the NPDESII pond. <br />A statistical summary of baseline chemistry data is provided in Appendix <br />D1 of the 2010 AHR. Its TDS plot indicates a decreasing trend. This site <br />is also a part of the Peabody Sage Creek Mine monitoring program. <br />- Site YSG5. This site exists on Grassy Creek below all discharges from <br />both the Yoast and Seneca II Mines. It became part of the required <br />monitoring program in October 1995. TDS values here are affected more by <br />the Seneca II Mine than the Yeast Mine. TDS values exhibit a decreasing <br />trend. This site is also a part of the Peabody Sage Creek Mine <br />monitoring program. <br />Springs <br />- Spoil Spring I (YSSPGI). This spoil spring was discovered in September <br />2002. It is located just above the old haul road culvert crossing Annand <br />Draw. Its TDS plot displays an increasing trend. <br />-- Spoil Spring 2 (YSSPG2). This spoil spring was discovered in May 2005 <br />below Stock Pond 011A (i.e., above NPDES Pond 011) . It is normally dry <br />in the fall. Its TDS plot displays an increasing trend. <br />- Spoil Spring 3 (YSSPG3). This spoil spring was discovered in <br />September 2005 above NPDES Pond 012. Its TDS plot displays a decreasing <br />trend. <br />- Spoil Spring 4 (YSSPG4). This spoil spring was discovered in June <br />2006, in the main channel that feeds NPDES Pond 012. It is located to <br />the north of Spoil Spring 3. Its TDS plot displays a decreasing trend. <br />10 <br />