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2014 ANNUAL HYDROLOGY REPORT <br />YOAST MINE <br />Table of Contents <br />Page <br />Introduction <br />1 <br />Meteorological Data <br />2 <br />Ground Water <br />2 <br />Water Levels <br />2 <br />Ground Water Level Summary <br />2 <br />Ground Water Quality <br />2 <br />Alluvium <br />3 <br />Wadge Overburden <br />3 <br />Wadge Coal <br />4 <br />Wadge Underburden <br />4 <br />Wolf Creek Coal and Underburden <br />4 <br />Comparison of Ground Water Quality to Water Use Standards <br />4 <br />Ground Water Points of Compliance <br />6 <br />Ground Water Quality Summary <br />6 <br />Surface Water <br />7 <br />Sage Creek <br />8 <br />Site YSSF3 <br />8 <br />NPDESI2 <br />8 <br />NPDESI3 <br />9 <br />NPDESI4 <br />9 <br />Site YSS2 <br />9 <br />Grassy Creek /Annand Draw <br />9 <br />NPDES10 <br />9 <br />NPDES11 <br />10 <br />Site YSGFS <br />10 <br />Site YSGS <br />10 <br />Springs <br />li <br />Comparison of Surface Water Quality to Water Use Standards <br />11 <br />NPDES Effluent Criteria <br />14 <br />Surface Water Summary <br />15 <br />References <br />16 <br />i <br />