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1991 WATER YEAR <br />ANNUAL HYDROLOGY REPORT <br />SENE LA II MINE <br /> Table of Contents <br /> Page <br /> introduction 1 <br /> Meteorological Data 2 <br /> Ground Water 2 <br /> Water Levels 2 <br /> Alluvium 3 <br /> Lennox Overburden/Lennox-Wadge Interbu rden 3 <br /> Wadge Coal 3 <br /> Wolf Creek Overburden/Wadge Underburden 4 <br /> Wolf Creek Coal 4 <br /> Spoils 5 <br /> Ground Water Level Summary 5 <br /> Water Quality 6 <br /> Alluvium ~ 6 <br /> Lennox-Wadge lnterburden ~ <br /> Wadge Coal 8 <br /> Wolf Creek Overburden/Wadge Underburden 8 <br /> Trout Creek Sandstone 8 <br /> Spoils 9 <br /> Comparison of Ground Water Quality to Water Use standards 9 <br /> Ground Water Quality Summary 70 <br /> Surface Water 70 <br /> Fish Creek Drainage 72 <br /> NPDES Discharge Point 004 72 <br /> Surface Water Site SW-52-6 73 <br /> Surface Nater Site SW-S2.10 13 <br /> NPDES Discharge Point 008 14 <br /> Surface Water Site SW-S2-12 14 <br /> Surface Wa [er Site SW-S2-ii 15 <br /> Surface Water Site SW-S2-13 15 <br />`I ~ <br />u <br />i <br />