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Monitor Well Construction Detail <br /> 10-inch traffic-rated well box <br /> flush-mounted 3-foot diameter concrete skirt <br /> 1` <br /> 1 foot bgs ocking cap <br /> concrete <br /> i <br /> 2"Sched 40 PVC <br /> 15 feet bgs <br /> bentonite <br /> 18 feet bgs chips <br /> 20 feet bgs 10"borehole <br /> depth to water <br /> 25 feet,approximate 4"Sched 40 PVC <br /> 0.020"slot <br /> #3 Sand <br /> 35 feet bgs <br /> 35.5 feet bg Bottom Cap <br /> bgs=below ground surface <br /> Figure 1 <br />