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SECTION 1,.6 5t DIMI NI . JNTOt <br />? SC 5: Sediment Trap <br />Description <br />Applications <br />Limitations <br />Design <br />Guidelines <br />TRAP <br />drainage area is greater than -5 acres, then a sediment basin should be <br />considered (see BNTP',(b). <br />A small temporary <br />pondirng area formed by <br />excavating below grade <br />and/or by constructirng <br />an earthen vinbankment <br />with a hard lined <br />spillway. <br />• Used to detain <br />sediment laden <br />rulu>ft h'oni small <br />disturbed areas to <br />allow sediments to <br />settle out. <br />• ['se only it the <br />contributing <br />drainage area to the <br />trap is _) acres or less <br />It the contributing <br />• 1'se only tot treatment of onsite runot1. <br />• Never construct a w( inient trap oil a flowing stream or in wetlands. <br />Location <br />• Traps should be located at polnt!: of discharge from disturbed areas. <br />• I'lle location will be determined by the natural terrain, drainage pattern <br />of the runoff, and the accessibility for maintenance. <br />• Traps should not lie located closer than 0 feet from a proposed building <br />foundation or highway edge of road. <br />Capacity <br />• L?edilnellt Itap? shall hay t, a ,toiagv voltlmc of ;,000 It'/ /,I( it, t!t <br />kolilr1bUtI11l; dtalllat;t' area. <br />•