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\ Speciricetions <br />Revised <br />Phase II - Raise I Specifications <br />r <br />WWL N390 <br />November 1. 1993 <br />MATERIAL TYPE APPLICATION <br />1 Phase II Lift; (and pervious drainage blanket far the Main <br />Embankment). <br />2 Drainage blanket over the synthetic liner. <br />3 Low permeability liner underneath the synthetic liner. <br />4 Phase I (main) Embankment; and pond embankments. <br />MATERIAL TYPE 1 2 3 4 <br />Maximum particle size (in) 3 1'/~ '/+ 6 <br />Fraction passing No. 200 sieve (%) <10 <35 20-70 -- <br />Compaction density (°~ of maximum dry <br />density) -- -- 95 (Method) <br />Compaction moisture content (°~ relative <br />to optimum) -- -- -2 to +3 -- <br />Permeability Icm/sect -- -- < 10-5 -- <br />Lift Thickness (loose) (in) -- <24 -- <12 <br />Tailings permeability test results: range 1.9 x 10-5 to 5.9 x 10'8 cm/sec <br />arithmetic mean 4 x 10'6 cm/sec <br />geometric mean 2 x 10-6 cm/sec <br />Tailings permeabilities calculated from CPT consolidation: 7.2 x 10-6 to 4.2 x 10-'cm/sec <br /> <br />„~ <br />~ <br />.. 1 . <br /> ` ~ J <br /> <br />i ~ <br /> I^ <br />