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VOLUME 8 <br />SURFACE DRAINAGE APPENDICES <br />TABLE OF CONTENTS <br />SEDIMENT YIELD <br />Evaluation of On-site Erosion Control Effectiveness and Sediment Yield at <br />Orchard Valley Mine, C. F. Leaf, 1978 <br />Application of Water Soil Loss Etluation for Predicting impacts from Mining <br />on Sediment Yield, C. F. Leaf <br />EROSION CONTROL MEASURE <br />Vegetative Buffer Specifications <br />Straw Dike Specifications <br />Outslope Drainage Protection/Downdrain Specifications <br />RUNOFF PREDICTIONS <br />Storm Runoff Predictions, sediment Retention Ponds, Drainage Plans, and <br />Sediment Control, C. F. Leaf <br />FLOOD DESIGN <br />Flood Hydrology Design Calculations, C. F. Leaf <br />HYDROLOGY SIMULATION <br />Hydrologic Simulation Monitoring <br />WATER QUALITY <br />Semi-Annual Water Quality Update Report, 1978 <br />CULVERT CAPACITIES <br />Culvert Design Calculations (pages C1-C84) <br />Design Calculations East Roatcap Creek Culvert at Proposed Bench Fill, <br />McDermid Engineering Assoc., 1986 <br />Maps of the Orchard Valley West Mine Portal Bench, East Roatcap Creek <br />Culvert, McDennid Engineering Associates, August 26, 1986 <br />Sheet 1 Plan & Profile <br />Sheet 2 Details <br />DRAINAGE AND DITCHES <br />Peak Flow Calculations (pages PFl-PF95) <br />Drainage Ditch Design Calculations (pages D1-D66) <br />DRAINAGE - DESIGN & LOCATION <br />Drainage Plan and Design and Location of Phase I Sediment Retention Ponds, C. <br />F. Leaf <br />Orchard Valley West Mine Sma11 Area Exemption Application <br />Erosion Control Plan for the Fill Outslopes at the OVWM <br />Sedimentation Pond Study Below OVWM Bench Fill Maps <br />OVWM Material Storage Area <br />OVWM French Drain Drawing <br />OVWM French Drain Rock Buttress Location Map <br />East Roatcap Slide Profile Drawing <br />OVWM Water Tank and Ventiltion Shaft Sites Small Area Exemrption Application, <br />April 26, 1988 <br />Small Area Exemption Demonstrations (pages SAE-1 thru SAE-30) <br />Map 8-1 Drainage Plan and Topsoil Storage Areas <br />Map 8-lA Drainage Areas & Junction, Branch, Structure Sedcadt Modelling Points <br />Map 8-2 Drainage Plan Timber Storage Area <br />Map 8-3 Coal Storage and Loadout Area <br />Map 8-9 Drainage Areas for Sedimentation Ponds <br />Map 8-5 Drainage Ditches Cross Sections <br />Map 8-6 OVWM Facilities <br />Map 8-6A OVWM Coal Handling Facilities <br />Map 8-7 OVWM Vent Shaft Site Access & Power <br />/~(Z-~Og Revised 08/01/02 <br />/yPPRoveD <br />6/sq~oy <br />