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• E-4 <br />4 INCHES STRAW OR MARSH <br />MAY AND LAYER OF RED <br />ROSIN PAPER <br />GRASS COVER <br />SAND FILL--,, <br />MAXIMUM SLOPE --► <br />3 TO I <br />SANDY LOAM SOIL <br />PERFORATED LATERAL <br />6INCHES <br />TOPSOIL <br />P IL ` •/. SLOPE <br />L PLOWED OR CLEAN ROCK <br />DISKED SURFACE 3j4 TO 2'/a INCHES <br />_CROSS SECTION A - A <br />—PIPE FROM <br />PUMPING CHAMBER <br />01. <br />�.. 6 <br />PERFORATED <br />LATERALS <br />M <br />U .._ <br />BED AREA —*4 , Le <br />•... - - � i 2 � Z 1 ( - <br />20 1 <br />i ( 20 <br />I NCHMgg INCHES <br />01 KE <br />10 FEET <br />!--- —+�+•— MAX. <br />;• TOTAL WIDTH <br />PLAN VIEW <br />