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12 OZ. /YD2 NONWOVEN <br />GEOTEXTILE (2' MIN. <br />OVERLAP) —\ <br />UNDERDRAIN FILL <br />DEPTH OF STRUCTURAL FILL REQUIRED <br />TO ACHIEVE SOIL LINER FILL SUBGRADE. <br />ELEVATION VARIES <br />6" MIN. SELECT STRUCTURAL <br />FILL <br />1 <br />5' MIN. <br />GRADE VARIES <br />COMPETENT SUBGRADE AS <br />APPROVED BY ENGINEER <br />NOTES: <br />1. CONFIGURATION OF UNDERDRAIN TRENCHES MAY BE MODIFIED <br />PROVIDED MINIMUM CROSS SECTIONAL AREA SHOWN ABOVE IS <br />ACHIEVED. <br />2. UNDERDRAIN SHALL BE INSTALLED ON A MINIMUM 1.0% <br />GRADE. <br />PRIMARY UNDERDRAIN TYPICAL DETAIL <br />NOT TO SCALE <br />12" DIA. PCPE <br />PIPE (PROJECTED TO <br />SECTION) <br />00 <br />2TYP. <br />1 <br />VARIES <br />�1 <br />SPILLWAY NOTE 3 <br />BOTTOM <br />(CONCRETE) CONCRETE <br />NATURAL SUBGRADE <br />OR STRUCTURAL FILL) <br />NOTES: <br />1. ANCHOR GEOMEMBRANE A MINIMUM OF 20' FROM EDGE OF UNDERDRAIN SUMP. <br />2. CONCRETE TO BE 6" THICK AND REINFORCED WITH 4 "x4" STEEL MESH, <br />3. OVERLAP GEOMEMBRANE A MINIMUM OF 5' OVER CONCRETE. <br />PHASE IV UNDERDRAIN SUMP SECTION <br />0 <br />N <br />.ii n <br />s <br />N 0 <br />0. <br />og24 IF THE ABOVE BAR DOES <br />Z'a ` NOT SCALE I INCH THE <br />DRAWING SCALE IS ALTERED <br />3 0 0 3 <br />NOT TO SCALE <br />12 OZ. /YD2 NONWOVEN <br />GEOTEXTILE (2' MIN. <br />OVERLAP) <br />UNDERDRAIN FILL <br />4' MIN. <br />DEPTH OF STRUCTURAL FILL REQUIRED <br />TO ACHIEVE SOIL LINER FILL SUBGRADE. <br />ELEVATION VARIES <br />6" MIN. SELECT STRUCTURAL <br />FILL <br />GRADE VARIES <br />COMPETENT SUBGRADE AS <br />APPROVED BY ENGINEER <br />NOTES: <br />1. CONFIGURATION OF UNDERDRAIN TRENCHES MAY BE MODIFIED <br />PROVIDED MINIMUM CROSS SECTIONAL AREA SHOWN ABOVE IS <br />ACHIEVED. <br />2, UNDERDRAIN SHALL BE INSTALLED ON A MINIMUM 1.0% <br />GRADE. <br />SECONDARY UNDERDRAIN TYPICAL DETAIL <br />NOT TO SCALE <br />1, TYP. <br />7 <br />12 OZ. /YD2 NONWOVEN <br />GEOTEXTILE (2' MIN. <br />OVERLAP) <br />UNDERDRAIN FILL <br />DEPTH OF STRUCTURAL FILL REQUIRED <br />TO ACHIEVE SOIL LINER FILL SUBGRADE. <br />ELEVATION VARIES <br />6" MIN. SELECT STRUCTURAL <br />FILL <br />3' MIN. <br />GRADE VARIES <br />COMPETENT SUBGRADE AS <br />APPROVED BY ENGINEER <br />NOTES: <br />1. CONFIGURATION OF UNDERDRAIN TRENCHES MAY BE MODIFIED <br />PROVIDED MINIMUM CROSS SECTIONAL AREA SHOWN ABOVE IS <br />ACHIEVED. <br />2. TERTIARY UNDERDRAINS SHALL BE INSTALLED IN THE AREAS OF THE VALLEY <br />LEACH FACILITY WHERE SEEPS OCCUR OUTSIDE OF THE TOPOGRAPHIC LOW <br />POINTS. INSTALLATION SHALL BE APPROVED BY THE ENGINEER. <br />3. UNDERDRAIN SHALL BE INSTALLED ON A MINIMUM 1.0% <br />GRADE. <br />TERTIARY UNDERDRAIN TYPICAL DETAIL <br />NOT TO SCALE <br />DISCHARGE AWAY <br />FROM VLF <br />CPE PIPE <br />PHASE IV UNDERDRAIN SUMP PLAN VIEW <br />NOT TO SCALE <br />4' MIN. DRAIN COVER <br />FILL FROM NON- 80 MIL TEXTURED <br />ACCESS ROAD LEACHED ORE (TEXTURE FACE DOWN) <br />LLDPE GEOMEMBRANE <br />15' TYP. _ 2' MIN. DRAIN <br />�\ COVER FILL <br />1' MIN. SOIL <br />2' MIN. STRUCTURAL LINER FILL <br />FILL BERM OR 2.5 MIN �\ <br />NATURAL GROUND <br />END UNDERDRAIN MIN. UNDERDRAIN <br />BELOW ANCHOR TRENCH - DEPTH SEE DETAILS 1� 2 3 <br />6" MIN. SELECT <br />STRUCTURAL FILL <br />INTERM UNDERDRAIN TERMNATION UNDERDRAIN FILL <br />�_GEOMEMBRANE <br />12" DIA. PCPE PIPE <br />PHASE IV UNDERDRAIN DISCHARGE PIPE TRANSITION DETAIL <br />ENGINEER'S STAMP I NO. I REVISION DESCRIPTION THIS DRAWING IS NOT APPROVED <br />UNLESS LAST REVISION IS HAND WRITTEN <br />REGjq <br />2a;e3 <br />2002 RECORD DRAWING <br />ISSUED FOR CONSTRUCTION <br />ISSUED DRAFT <br />NOT TO SCALE <br />DATE I BY CHKDIAP'VDI NO. I REVISION DESCRIPTION THIS DRAWING IS NOT APPROVED I DATE I BY ICHKDIAP'VD <br />UNLESS LAST REVISION IS HAND WRITTEN <br />B .tu /uz <br />MIR.1 <br />JP c <br />6/9/00 <br />MRJ <br />JMJ <br />JFL <br />5/25/00 <br />MRJ <br />GE <br />GE <br />Permit #: M-- 1q a4q Confidental ?: Q <br />Class: Type -Seq.: <br />From To: <br />Doc. Name 1L._ <br />Doc. Date (if no date stamp):_ -A-013f <br />CLIENT DATE <br />PRINT ISSUE RECORD <br />ryCripple Creek & Victor Gold Mining Company <br />Cresson Project <br />SIG A Joint Venture — AngloGold (Colorado) Corp., Manager <br />TITLE PHASE IV <br />UNDERDRAIN DETALS <br />44 ONION BLV <br />PHONE: <br />300, LAKEWOOD, COLORADO 80228 <br />0540 FAX: (303)985 -2080 <br />RB — JUNE, 2001 <br />CNECEED GE JOB NO. 003 -2142 <br />REVIEWED GE DIGITAL NO. D035 <br />APPROVED JFL <br />SCALE AS SHOWN DWG M RRv I <br />FILE NO. 2142DO35 13 <br />