Based on two boring logs, the 40 feet of peat are underlaid by about 10 feet of very soft oganic clay over silty clay. The clay layer is under about 75 feet artesian pressure. As you may expect that the peat is alaways saturated with water which my also come from the landfill.
Focht3:
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The 40 ft deep of peat is between the toe of a landfill and a small creek. The landfill slope is about 200 feet long and parallel to the creek. The distance between the tip and creek bank is about 30 to 50 feet. The outslope of the landfill is 4H:1V.
10 ft deep x10 wide hardfill (concrete...