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AREA E <br />• Area E is the portion of the conveyor corridor which extends from <br />the east yard about 800 feet to the east. This area encompasses 0.2 <br />acres. There is no reason to suspect that this area contains acid, <br />toxic, or alkalinity forming materials. The drainage from the <br />conveyor corridor is controlled by the construction of a berm on each <br />side of the conveyor. Drainage from this small area will run down <br />grade to the east. At about station 13+00 alternate sediment control <br />measures will be implemented so the run-off will meet applicable <br />settleable solids standards. The run-off from this area will be <br />coursed through straw bale filters to control sediment. <br />The location where this water will be coursed through straw bale <br />filters is north of the railroad tracks and north of the state <br />highway. It is unlikely that any of this water will flow directly <br />into any state water so therefore it is not considered a point source <br />discharge. <br />AREA C <br />Area C is the portion of the conveyor corridor which extends from <br />the new portal area about 1300 feet to the west. This area <br />encompasses 0.6 acres. There is no reason to suspect that this area <br />contains acid, toxic, or alkalinity forming materials. The drainage <br />from the conveyor corridor is controlled by the construction of a berm <br />on each side of the conveyor. Drainage from this small area will run <br />down grade to the east to the new portal area. Where the drainage <br />reaches the new portal area alternate sediment control measures will <br />be implemented so the run-off will meet applicable settleable solids <br />standards. The run-off will be coursed through straw bale filters to <br />control sediment. <br />AREA A <br />Area A is the new portal area. This area encompasses 0.6 acres. <br />There is no reason to suspect that this area contains acid, toxic, or <br />alkalinity forming materials. The drainage from this area is <br />collected in collection ditch CD-A. At the outlet end of ditch CD-A <br />alternate sediment control measures will be implemented so the run-off <br />will meet applicable settleable solids standards. The run-off will <br />be coursed through straw bale filters to control sediment. <br />Areas A, C and E encompass a total of 1.4 acres. Alternate <br />sediment control for areas A b C will be provided by a sediment trap <br />drop inlet. Alternate sediment control for Area E will be provided <br />by a typical sediment trap. Both sediment control structures are <br />shown on Drawing 5-004. <br />phc <br />• 8-87 <br />