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TABLE 1 <br />AGGREGATE INDUSTRIES <br />WATTENBERG POND 3 SLURRY WALL <br />Materials Quality Control Program <br />SUBJECT <br />STANDARD <br />TYPE OF TEST <br />MINIMUM FREQUENCY <br />SPECIFIED VALUES <br />Water <br />___ <br />pH <br />Total Hardness <br />Per water source or as changes <br />occur <br />As required to properly hydrate <br />bentonite with approved additives <br />Manufacturers certificate of <br />Additives <br />— <br />compliance with stated <br />One time <br />As approved by Engineer <br />characteristics <br />Material <br />Bentonite <br />API Std 13A <br />Manufacturers certificate of <br />compliance <br />One time <br />Premium grade sodium cation <br />montmorillomte <br />Backfill Soils <br />ASTM D 422 <br />ASTM D 4318 <br />ASTM D 1140 <br />Selected sods obtained from a <br />borrow area approved by the <br />Engineer <br />Per borrow source or as changes <br />occur <br />65 to 100% passing 3/8" sieve <br />40 to 85% passing #20 sieve <br />sieve <br />2:25% passing Roll to 1/8" thread <br />ad <br />Unit Weight <br />2 per shift or 1 per batch (pond) <br />> 64 pcf (1.03 gm/cm') <br />Viscosity <br />2 per shift or I per batch (pond) <br />> 40 seconds <br />Prepared for <br />Placement into the <br />API Std 13B <br />Filtrate Loss <br />I per shift or 1 per batch (pond) <br />< 30 cm' in 30 mm. @ 100 psi <br />trench <br />pH <br />1 per shift or 1 per batch (pond) <br />?8 <br />Slurry <br />Unit Weight <br />2 per shift <br />64 to 87 pcf (1.03 —1.40 gm/cm') <br />Viscosity <br />2 per shift <br />> 40 seconds <br />In Trench <br />API Std 13B 1 <br />Sand Convent <br />Iper shift <br />25% maximum <br />Filtrate Loss <br />l per shift <br />< 30 cm' in 30 min. @ 100 psi <br />ASTM C 143 <br />Slump <br />per 100 yds' <br />Slump 2 to 6 inches <br />Backfill Mix <br />At Trench <br />122 <br />ASTM D <br />Gradation <br />1 per 300 yds' <br />65 to 1000/9 passing 3/8" sieve <br />40 to 8 / passing passing 200 sieve <br />At Trench for <br />Permeability Testing <br />ASTM D 5084 -03 <br />Flexible Wall Permeability Test <br />4 samples evenly spaced <br />< 1 x 10" cm/sec <br />