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<br /> <br />- 0+00 [0 2+00 should be re-keyed as the wall is completed to remove sediment from key. <br />4/25/00 <br />- Trenched 3+I S to 4+55 with 4-toot key. <br />- Trench slurry still thin. Mixing hopper is not working right. Bentonite and water are not <br />mixing properly out of the hopper. I[ needs to have some veins welded to the inside of the <br />discharge pipe to create turbulence in [he mixture. <br />- Backfilled 0+00 to I+25. First couple of batches were too dry but have improved <br />significantly. <br />4/26/00 <br />- Trenched 4+55 to 5+25. <br />- Backfilled 1+25 to 2+50 <br />- Cleaned trench back to 3+50 (approximate location of toe of slope for backfill) <br />- No bentonite slurry added to trench today. <br />4/27/00 <br />- Still having [rouble at bentonite mixing pond. Hall-Irwin now has a trailer on site to hold the <br />bentonite powder until mixing it so that delivery [rucks don't have [o stay at site while backfill <br />mixes straight from their trucks. The trailer is not working right and slung is thin again. <br />- Trenched 5+25 to 5+50 <br />- Backfilled 2+50 to 3+50 <br />4/28/00 <br />- Trenched 5+50 to 7+00 <br />- Backfilled 3+50 to 3+70 <br />- Slurry going into trench has improved [0 44 seconds through the Marsh funnel. <br />4/29/00 <br />- Trenched 7+00 to 8+95 <br />- Backfilled 3+70 to 4+75 <br />Possible leaky area in wall between 5+50 and 6+50, particularly near 5+90 to 6+00. Banks of <br />trench have sloughed off and there is no way for the excavating hoe to get back to the area <br />now that we have turned the corner and are heading west. <br />5/ I /00 <br />- Trenched 8+95 to 10+95 <br />- Backfilled 4+75 to 7+00 <br />The corner (approximately 6+90 to 7+10) appears to have a significant amount of sediment <br />and material in the key. It tagged at 19 feet and bedrock tagged at approximately 19 feet. <br />Spoke with Hall-Irwin about cleaning it out but due to the configuration of the corner (the <br />backhoe would need to sit [o the side of [he trench to clean i[) we would cause more problems <br />if we tried to clean it. <br />5/2/00 <br />- Trenched 10+95 to 12+g5 <br />- Backfilled 7+00 to 9+50 <br />- Cleaned trench 9+I S to 10+95 <br />- Slurry still mixing thin. <br />H.\0636_059\Summary~ Reports\Stegner Daly Logs.nt <br />