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I1 3/8"square 10 40 <br /> 2 U.S. N�•. 4 0 4 , <br /> 3 U.S. No. 200 0 2 <br /> 4 ! <br /> � 9-03.12(5) Gravel Backfill for Orywells i <br /> I 6 Grevel backfill for drywells shall confortn to the following gradings: ; <br /> � 7 <br /> 8 Sieve Size Percent Passing i <br /> I 9 1 Yx"square 100 -- � <br /> 19 7 �/a"square 90 100 � <br /> 11 �/a"square 0 20 { <br /> ` 12 3/8"square 0 2 3 <br /> � 13 U.S. No. 200 0 0.5 1 <br /> i <br /> � � <br /> ' <br /> ! I <br /> il � <br /> I <br /> I <br /> � <br /> � i <br /> � <br /> I <br /> 1 <br /> I <br /> { I <br /> � I <br /> I <br /> IENGLISH AMENQMENTS DIVISION 9 03.AP9 <br /> JUNE 8, 7998 Page 5 � <br /> I <br />