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Stegner Farms Pit <br />Slurry Wall <br />Daily Construction Logs-5/8/00 to 5/20/00 <br />5/8/00 <br />- Trenched 18+25 to 19+40. <br />- Backfilled 14+75 to 15+25. <br />5/9/00 <br />- Trenched 19+40 to 20+40. <br />- Backfilled 15+25 [0 17+25. <br />- Could not clean trenching from previous day due [o sloughing of overburden along trench <br />sides. <br />- Potential problem area from 17+50 to 18+50 where bedrock key was tagged at less than 3 feet. <br />- Desander not running yet. <br />5/ I 0/00 <br />- Trenched 20+40 to 22+20. <br />- Backfilled 17+25 to 19+30. <br />- Could not clean trenching from previous day due to sloughing of overburden along trench <br />sides. <br />- Potential problem areas at 19+75 and 20+50 where bedrock key was tagged at less than 3 feet. <br />- Desander not running yet. <br />5/ I 1 /00 <br />- Trenched 22+20 to 23+30. <br />- No backfilling. <br />- Could not clean trenching from previous day due to sloughing of overburden along trench <br />sides. <br />- Potential problem areas at 20+50, 21+00, 21+25 and ZI+75 where bedrock key was tagged at <br />less than 3 feet. <br />- Desander not running yet. <br />5/ 12/00 <br />- Trenched 23+30 to 24+25. <br />- Backfilled 19+30 to 20+50. <br />- Could not clean trenching from previous day due to sloughing of overburden along trench <br />sides. <br />- Desander not running ye[. <br />5/13/00 <br />- Trenched 24+25 [0 26+30. <br />- Backfilled 20+50 to 22+75. <br />- Could not clean trenching from previous day due to sloughing of overburden along trench <br />sides. <br />- Sloughing continues to worsen due [o thinning overburden. Trying [o control it by removing <br />areas of cracking before finishing each set. Some sloughing has occurred after completion of <br />sets in areas that can no longer be reached by the backhoe. <br />