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DEPTH OF STRUCTURAL FILL REQUIRED <br />TO ACHIEVE SOIL LINER FILL SUBGRADE. <br />ELEVATION VARIES <br />12 oz /yd2 NONWOVEN <br />GEOTEXTILE 6' MINIMUM SELECT <br />(2' MINIMUM OVERLAP) STRUCTURAL FILL <br />6' DMA. CPe PIPE <br />MINIMUM <br />UNDERDRAIN FILL /.� /� /�W��� <br />GRAD VARIES <br />5' MINIMUM <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 />F PRIMARY UNDERDRAIN <br />A220 NITS <br />4' MINIMUM DRAIN COVER <br />FILL FROM UNLEACHED ORE <br />ACCESS ROAD <br />15' TYP. <br />y <br />2' MINIMUM STRUCTURAL <br />FILL BERM OR <br />NATURAL GROUND <br />—...J 1L <br />2.5 TYP. <br />END UNDERDRAIN UNDERDRAIN FILL <br />BELOW ANCHOR TRENCH <br />80 mil TEXTURED <br />(TEXTURE FACE DOWN) <br />LLDPE GEOMEMBRANE <br />MINIMUM DRAIN <br />COVER FILL <br />1' MINIMUM SOIL <br />LINER FILL <br />MINIMUM UNDERDRAIN Y •G H <br />DEPTH SEE DETAILS ge9q J <br />INTERIM UNDERDRAIN TERMINATION <br />0 <br />Z <br />W <br />x <br />x <br />0 <br />a <br />DEPTH OF STRUCTURAL FILL REQUIRED <br />TO ACHIEVE SOIL LINER FILL SUBGRADE. <br />ELEVATION VARIES <br />12 oz /yd2 NONWOVEN <br />GEOTEXTILE <br />(2' MINIMUM OVERLAP) <br />6' MINIMUM SELECT <br />F STRUCTURAL FILL <br />2' MINIMUM <br />UNDERDRAIN FILL <br />GRADE VARIES <br />4' MINIMUM 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 />G 1SECONDARY UNDERDRAIN <br />A\ 220 NTS <br />3' MINIMUM <br />OVERLAP <br />2' MINIMUM DRAIN O OoO O <br />COVER FILL <br />1' MINIMUM SOIL 1 <br />LINER FILL EXTRUSION WELD <br />MINIMUM UNDERDRAIN F 1 •'GH �� /�� /. ^U/ ���� <br />DEPTH SEE DETAILS <br />CONTINUATION OF UNDERDRAIN <br />TEMPORARY UNDERDRAIN TERMINATION <br />NTS <br />12 oz /yd2 NONWOVEN <br />GEOTEXTILE <br />(2' MINIMUM OVERLAP) <br />DEPTH OF STRUCTURAL FILL REQUIRED <br />TO ACHIEVE SOIL LINER FILL SUBGRADE. <br />ELEVATION VARIES <br />MINIMUM SELECT <br />' TRUCTURAL FILL <br />2' MINIMUM <br />GRADE VARIES <br />COMPETENT SUBGRADE AS <br />3' MINIMUM <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 <br />VALLEY LEACH FACILITY WHERE SEEPS OCCUR OUTSIDE OF THE <br />TOPOGRAPHY LOW POINTS. INSTALLATION SHALL BE APPROVED BY THE <br />ENGINEER DURING CONSTRUCTION. <br />3. UNDERDRAIN SHALL BE INSTALLED ON A MINIMUM 1.0% GRADE. <br />80 mil TEXTURED <br />(TEXTURE FACE DOWN) <br />LLDPE GEOMEMBRANE <br />B 3/14/08 ISSUED FOR PERMTITING ulw <br />DTW <br />A 2/15/08 ISSUED FOR CLIENT REVIEW J� <br />ALD <br />DISCLAIMER <br />SMITH WILLIAM S CONSULTANTS, INC. PRODUCED THE INFORMATION PRESENTED <br />ON THIS DRAWING THROUGH THE USE OF TECHNICAL INFORMATION AND <br />PRACTICAL EXPERIENCE SPECIFIC TO ITS EFFORTS. RECEIVING THIS DRAWING <br />DOES NOT GUARANTEE ANY RIGHTS TO SUCH TECHNICAL INFORMATION AND <br />PRACTICAL EXPERIENCE. ANY ALTERATION OR ADAPTATION OF THE DATA OR <br />CONTENTS OF THIS DRAWING SHALL BE AT USER'S SOLE RISK AND WITHOUT <br />ANY LIABILITY OR LEGAL RESPONSIBILITY TO SMITH WILLIAMS CONSULTANTS, INC <br />TYPICAL TERTIARY UNDERDRAIN <br />RM <br />CLIENT CRIPPLE CREEK & VICTOR <br />GOLD MINING COMPANY <br />PROJECT <br />PHASE 5 VLF <br />UU113 <br />UNDERDRAIN DETAILS <br />SHEET 1 OF 2 <br />sum <br />SMITH WILLIAMS CONSULTANTS, INC. <br />Englewood, Colorado <br />Phone: 303433-0262 <br />Elko, Nevada <br />Phone: 77 5-778 -3200 <br />APR 15 2003 <br />X117 Q1�p�REG�sfF,y <br />M. <br />BY JFL CHECKED BY DTW <br />[DESIGNED <br />RAWN BY AJM APPROVED BY RMS <br />FILENAME DRAWING No REV <br />1125D108 I A240 8 <br />