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<br />CJ <br />• <br /> <br />PROJECT: JOB NO: SHEET~.OF~} <br />Arequa Phase 5 VLF 1125 <br />FEATURE: BY: DATE: <br />Underdrains DTW 2/8/08 <br />DETAILS: CHKD BY: DATE: <br />Underdrain Capacities ALD 2/19/08 <br />Primary, Secondary and Tertiary Underdrains (coat) <br />• Tertiary Underdrain Ar~lysis: <br />Tertiary underdrnins to be routed into upper reaches above the PSSA <br />Use Leps (1973) and Wilkins (1956) as before (same assumptions ns secondary Underdrains). <br />DEPTH OF STRUCTURAL FILL REQUIREG <br />TO ACHIEVE SOIL LINER FILL SUBGRADE. <br />ELEVATION VARIES <br />12 oz/yd' NONWOVEN <br />GEOTEXTILE <br />(2~ MINIMUM OVERLAP) b" MINIMUM SELECT <br />STRUCTURAL FILL <br /> <br />2~ MINIMUM <br />~, GRADE VARIES <br />COMPETENT SUBGRAOE AS <br />3~ MINIMUM APPROVED BY ENGINEER <br />