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• TABLE OF CONTENTS (continued <br />c <br />2.2.7 Surface Water Resources .......................11 <br />2.2.8 Subsurface Water Resources ....................ll <br />SECTION 3.0 - DESCRIPTION OF WORST POSSIBLE CONSEQUENCES OF <br />SUBSIDENCE ON STROCTURES AND RENEWABLE RESOORCE LANDS <br />STRUCTURES AND RENEWABLE RESOURCE LANDS ..................12 <br />3.1 LAND USE .............................................12 <br />3.1.1 Structures ...................................12 <br />3.1.2 Resource Lands ...............................12 <br />3.2 PREDICTED SUBSIDENCE PHENOMENA .......................13 <br />3.2.1 Mining Methods ...............................14 <br />3.2.2 Site Parameters Affecting Subsidence.........14 <br />3.2.2.1 Overburden Depth .......................14 <br />3.2.2..2 Surface Topography .....................15 <br />3.2.2.3 Stratigraphy ...........................15 <br />Soil overburden ...........................15 <br />Rock overburden ...........................16 <br />• 3.2.2.4 Structural.Geology ::::::::::::::::::::.16 <br />Bedding. .16 <br />Faulting ..................................16 <br />Jointing ..................................19.1 <br />3.2.2.5 Mine Layout ............................19.1 <br />3.2.3 Local Mining Related Subsidence ..............29 ~ <br />3.2.4 Predicted Subsidence Phenomena ...............21 <br />3.2.4.1 Influence of Site Parameters I, <br />Subsidence Phenomena ...................21 <br />Overburden depth ..........................21 <br />Geology ...................................24 <br />Surface topography ........................24 <br />Mine layout ...............................25 <br />3.2.4.2 Predicted Subsidence Phenomena.........26 <br />Methodology ...............................26 <br />Predicted maximum subsidence ..............27 <br />Coal seam subsidence effects ..............29.1 <br />Overburden subsidence effects .............29.3 <br />. 3.2.5 Predicted Angle of Draw .......................34 <br />3.2.5.1 Influence of Site Parameters on <br />Angle of Draw ..........................34 <br />Overburden depth ..........................34 <br />(Rev. 05/24/84) page iv <br />