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12 OZ. /YD2 NONWOVEN 6" MIN. SELECT STRUCTURAL <br />GEOTEXTILE (2' MIN. FILL <br />12 OZ. /YD2 NONWOVEN 6" MIN. SELECT STRUCTURAL 12 OZ. /YD2 NONWOVEN 6" MIN. SELECT STRUCTURAL OVERLAP) <br />GEOTEXTILE (2' MIN. FILL GEOTEXTILE (2 MIN. FILL 70 <br />OVERLAP) OVERLAP) <br />> <br />z L0 <br />i 1 Z j7k� <br />GRADE VARIES `� GRADE VARIES 12 DIA. PCPE PIPE <br />UNDERDRAIN FILL COMPETENT SUBGRADE AS " 3' MIN. APPROVED BY ENGINEER to <br />GRADE VARIES UNDERDRAIN FILL COMPETENT SUBGRADE AS ci <br />4' (MIN.) APPROVED BY ENGINEER <br />UNDERDRAIN FILL COMPETENT SUBGRADE AS NOTES: <br />5' MIN. APPROVED BY ENGINEER NOTE: 1. CONFIGURATION OF UNDERDRAIN TRENCHES MAY BE MODIFIED <br />1. CONFIGURATION OF UNDERDRAIN TRENCHES MAY BE MODIFIED PROVIDED MINIMUM CROSS SECTIONAL AREA SHOWN ABOVE IS <br />NOTE: PROVIDED MINIMUM CROSS SECTIONAL AREA SHOWN ABOVE IS ACHIEVED. <br />1. CONFIGURATION OF UNDERDRAIN TRENCHES MAY BE MODIFIED ACHIEVED. 2. TERTIARY UNDERDRAINS SHALL BE INSTALLED IN THE AREAS OF THE VALLEY <br />PROVIDED MINIMUM CROSS SECTIONAL AREA SHOWN ABOVE IS LEACH FACILITY WHERE SEEPS OCCUR OUTSIDE OF THE TOPOGRAPHIC <br />ACHIEVED. LOW POINTS. INSTALLATION SHALL BE APPROVED BY THE ENGINEER. Q PHASE IV UNDERDRAIN SUMP PLAN VIEW <br />15 NOT TO SCALE <br />1 PRIMARY UNDERDRAIN TYPICAL DETAIL 2 SECONDARY UNDERDRAIN TYPICAL DETAIL 3 TERTIARY UNDERDRAIN TYPICAL DETAIL <br />`15 NOT TO SCALE 15 NOT TO SCALE 15 NOT TO SCALE <br />111111111111111111111111111111 i I I I I <br />19518 <br />Permit # M- 1980 -244 I <br />Amendement No. 8 March 94, 2000 <br />6" MIN. <br />SELECT <br />STRUCTURAL FILL <br />12 OZ. /YD2 NONWOVEN <br />^� <br />z <br />12" DIA. PCPE s <br />GEOTEXTILE (2 MIN. <br />PIPE (PROJECTED TO 15 <br />� <br />OVERLAP) —� <br />I <br />SECTION) J 1 <br />15 <br />I <br />(- <br />`� <br />VARIES <br />5' 20' <br />z <br />UNDERDRAIN FILL <br />2.5 M <br />12.5 20' TYP. <br />PRIMARY <br />BEDDING FILL <br />12" DIA. PCPE PIPE <br />1 <br />SPILLWAY <br />UNDERDRAIN <br />3 MIN. <br />BOTTOM <br />NOTE 3 <br />(CONCRETE) <br />5' <br />CONCRETE <br />4' MIN. <br />NATURAL SUBGRADE <br />lz <br />OR STRUCTURAL FILL <br />NOTES: <br />1. <br />ANCHOR GEOMEMBRANE A MINIMUM OF 20' FROM EDGE OF UNDERDRAIN SUMP. <br />2. <br />CONCRETE TO BE 6" THICK AND REINFORCED WITH 4 "x4" STEEL MESH. <br />3. <br />OVERLAP GEOMEMBRANE A MINIMUM OF 5' OVER CONCRETE. <br />C3 PHASE IV UNDERDRAIN <br />DISCHARGE <br />PIPE TRANSITION DETAIL <br />5 PHASE [�! 4lI+IDEIDI�AI SUf�ll� SECTIOf�I <br />15 <br />NOT TO SCALE <br />1 <br />15 <br />NOT TO SCALE <br />111111111111111111111111111111 i I I I I <br />19518 <br />Permit # M- 1980 -244 I <br />Amendement No. 8 March 94, 2000 <br />