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Old Posted Nov 6, 2015, 11:48 PM
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colemonkee colemonkee is offline
Ridin' into the sunset
Join Date: Nov 2004
Location: Los Angeles
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^ It's likely the remnants of soil testing on top of what appears to be the core. Sometimes they will test loads on the soil to determine how much the ground will sink, and it helps them engineer the foundation to account for that.
"Then each time Fleetwood would be not so much overcome by remorse as bedazzled at having been shown the secret backlands of wealth, and how sooner or later it depended on some act of murder, seldom limited to once."

Against the Day, Thomas Pynchon
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