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AFTENTION SY67FM <br />OFFSIi'r FRAME GRATE SO THAT <br />RESTRICTOR/POLLUTION DEVICE IS <br />VISI111.:E AT EDGE OF OPENING AND <br />DJRLCTLY OVER THE LADDER--j <br />,STD. GALV. CB <br />LADDER STEPS - <br />O U774 aT Gon/7-20Z- <br />78 <br />GRATE ELEVATION <br />100.67, <br />CHAIN - 200# CAPACITY' <br />SLACK WHEN GATE IS DOWI <br />WELD CHAIN TO CB FRAME <br />WATERTIGHT CLEAN--� s 1`r OVERFLOW ELEVATION - <br />OUT GATE WITH MIN. t 7LLv SET TO PROVI:)E REQUIR, <br />S" GAUGE SLIDE �� \ DETENTION Ali') ADEQUATE' <br />OIL SEPARATION PRO- <br />F 1 �� lr TECTION <br />I 2 MIN. /2✓i OVERFLOW PIPE & OUTLET PIPE <br />�^ r MUST HAVE CAPACITY EQUAL TO OE <br />I1' <br />PI)IPE� \ GREATER THAN COJIBINEL <br />INLET SYSTEM <br />0U OUTLET PIPE <br />:p �? 2' MIN. <br />i <br />RESTRICTOR PLATE 11 <br />APPROPRIATELY <br />SIZED ORIFICE CUT. 2' MIN. <br />4 `IN- PLATE: ' r 1 <br />i• <br />NOTE - ALL METAL PARTS AND <br />SURFACES MUST BE MADE Ok` <br />ID CORROSION RESISTANT MATERIAL <br />OR GALVANIZED. COMPLETE <br />CORROSION PROTECTI'GN MUST'BE <br />ASSURED. <br />C - <br />iu:N <br />