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E-4 <br /> LAYER OF GEOTEXTILE LOAMY SAND CAP <br /> FABRIC • PERFORATED LATERAL <br /> GRASS COVER 6 INCHES <br /> CLEAN SAND FILL TOPSOIL <br /> MAXIMUM SLOPE ° <br /> 3 TO I <br /> 'V TOPSOIL3/ CLEAN ROCK 4" <br /> PLOWED OR a TO 21/2 INCHES , SLOPE <br /> DISKED SURFACE , <br /> �- SUBSOIL . <br /> CROSS SECTION A - A <br /> PIPE FROM <br /> PUMPING CHAMBER <br /> 777 <br /> ~ W 11 <br /> X <br /> O <br /> PERFORATED <br /> • LATERALS i <br /> ; III • <br /> BED AREA <br /> -- I Z <br /> A I i W i W i I m A <br /> = 1 V <br /> ? ; Z <br /> 20 I o o 20 <br /> INCHES I �' V INCHES _ <br /> DIKE 0 FEET—DIKE— <br /> MAX. - <br /> TOTAL <br /> EET_DIKEMAX. .TOTAL WIDTH \ <br /> PLAN VIEW <br />