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AIL HOPE <br />R— <br />6' FENCE (NEW <br />OR RELOCATED) <br />UP -SLOPE ANCHOR <br />TRENCH /-2 EXISTING GROUND <br />eSIMILAR NEW 60 -MIL HOPE LINER //- SURFACE <br />OVER NON- WDVEN -_____ / <br />- GEOTEXTILE 1 <br />EXISTING HOPE <br />` LINER <br />T n, T <br />TRENCH r 6" ROAD WEARING <br />1 COURSE <br />3X SLOPE <br />EXCAVATION <br />MATERIAL- <br />BERM <br />1� <br />2 <br />NOTES: <br />1. RANDOM FILL CONSISTS OF BORROW MATERIAL GENERATED FROM POND <br />EXCAVATION. LARGE ROCK FRAGMENTS AND BOULDERS THAT ARE GREATER <br />THAN 6" IN DIAMETER SHALL BE GRADED TO THE DOWNSTREAM FACE. <br />FINER GRAIN MATERIAL SHALL BE PLACED IN THE UPSTREAM CONE OF THE <br />EMBANKMENT. <br />TAILINGS POND CREST <br />GEOMEMBRANE /GEOTEXTILE <br />ANCHOR TRENCH 2 <br />• a • rm <br />6' HIGH TAILINGS <br />CONTAINMENT BERM ESTIMATED <br />BEDROCK LEVEL <br />TAILINGS POND EXPANSION <br />CONSTRUCTION DETAIL 1 <br />� C4 <br />to a to rtc* (wwQ. a ner.) <br />BWOAL <br />GEOGRID <br />SURFACE <br />unuvnu <br />SURFAACC E <br />1.5 1.5 <br />LINER <br />NOTES: <br />1. CAST EXCAVATED SPOIL TO DOWNSLOPE SIDE OF DITCH. <br />2. SLOPE OF DITCH TO BE MAINTAINED AT NO GREATER THAN 2%. <br />3. HAY BALES SHALL BE PLACED AT THE DITCH OUTLET FOR SEDIMENT <br />CONTROL. <br />V -NOTCH DRAINAGE DITCH 3 <br />wac C4 <br />s o : rm <br />CREST ANCHOR e <br />TRENCH <br />ma <br />EXISTING TAILINGS <br />TO REMAIN IN <br />PLACE <br />EMBANKMENT <br />EXTENSION CREST EL. <br />8420 <br />EXISTING FENCE <br />/ (REMOVE & <br />/ REPLACE) <br />EXISTING <br />EMBANKMENT <br />CREST EL. 8409 <br />EXISTING POWER <br />POLES (00 NOT <br />TERRACE EXISTING <br />EMBANKMENT AS <br />NECESSARY <br />EXISTING <br />GROUND <br />CONSTRUCTION SEQUENCE <br />Q REMOVE THE EXPOSED LINER LOCATED ON THE NORTH BANK OF THE EXISTING <br />POND AND THE FENCE SURROUNDING THE POND. <br />Q EXCAVATE THE MATERIAL NORTH OF THE EXISTING POND TO THE CONTOUR <br />SHOWN ON DRAWING 5461 —C2. LEAVE A 6 —FOOT HIGH CONTAINMENT BERM <br />BETWEEN THE NEW EXCAVATION AND THE EXISTING TAILINGS POND, <br />Q PLACE A BWOAL GEOGRID OVER THE EXISTING TAILINGS WHICH ARE TO BE <br />COVERED BY THE EMBANKMENT EXTENSION. <br />® PLACE AND COMPACT THE EXCAVATED MATERIAL TO FORM THE EMBANKMENT <br />EXTENSION. TERRACE THE DOWNSTREAM SLOPE OF THE EXISTING EMBANKMENT <br />AS NECESSARY TO PROPERLY PLACE AND COMPACT THE NEW EMBANKMENT <br />MATERIAL <br />Q INSTALL THE NEW 60 —MIL HOPE LINER AND NON —WOVEN GEOTEXTILE IN THE <br />NEWLY EXCAVATED PORTION OF THE POND FROM THE UP —SLOPE ANCHOR <br />TRENCH TO THE CONTAINMENT BERM. TEMPORARILY ANCHOR THE LINER AND <br />GEOTEXTILE AT THE CONTAINMENT BERM USING SAND BAGS. <br />© RELOCATE THE EXISTING TAILINGS WHICH ARE NOT LOCATED UNDERNEATH THE <br />EMBANKMENT EXTENSION INTO THE NEWLY LINED PORTION OF THE POND. <br />Q CONTINUE INSTALLING THE NEW LINER AND GEOTEXTILE FROM THE CONTAINMENT <br />BERM, ACROSS THE EXISTING POND, AND UP THE NEW EMBANKMENT EXTENSION <br />TO THE CREST ANCHOR TRENCH. <br />in�u�mm�mNl�Immuuliimimwu <br />0017727 <br />TAILINGS AND WATER <br />° POND DETAILS <br />1998 <br />