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2009 ANNUAL HYDROLOGY REPORT <br /> YOAST MINE <br /> Table of Contents <br /> Page <br /> Introduction 1 <br /> Meteorological Data 2 <br /> Ground Water 3 <br /> Water Levels 3 <br /> Ground Water Level Summary 3 <br /> Ground Water Quality 3 <br /> Alluvium 4 <br /> Wadge Overburden 4 <br /> Wadge Coal 4 <br /> Wadge Underburden 4 <br /> Wolf Creek Coal and Underburden 4 <br /> Comparison of Ground Water Quality to Water Use Standards 5 <br /> Ground Water Points of Compliance 5 <br /> Ground Water Quality Summary 6 <br /> Surface Water 7 <br /> Sage Creek 8 <br /> Site YSSF3 8 <br /> NPDESI2 8 <br /> NPDESI3 9 <br /> NPDESI4 9 <br /> Site YSS2 9 <br /> Grassy Creek/Annand Draw 9 <br /> NPDES10 10 <br /> NPDESII 10 <br /> Site YSGF5 10 <br /> Site YSG5 10 <br /> Springs 10 <br /> Comparison of Surface Water Quality to Water Use Standards 11 <br /> NPDES Effluent Criteria 14 <br /> Surface Water Summary 14 <br /> References 15 <br />0 i