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Chapter 4 - Best. Management Practices for.Erosion. and Sediment Control <br /> r <br /> r <br /> TYPICAL CONCRETE BASE TYPICAL STEEL BASE <br /> Plate 4.26d Riser Pipe Conditions <br /> Source: Virginia DSWC <br /> w <br /> �r <br /> f= SATURATED ZONE <br /> CONNECTIONS BETWEEN - <br /> THE AMI-SEEP AND --` '_- .'-- :_''• _ <br /> THE BARREL MUST BE <br /> r WATERTIGHT <br /> w - <br /> Plate 4.26e Location of Anti-seep Coilars <br /> Source: Virginia DSWC <br /> • 4-85 <br />