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Open-File Report 2006-1169

Submarine Hydrogeological Data from Cape Cod National Seashore

Image of the drill rig used for the geoprobe and piezometer drilling.

Figure 7: The USGS ATV-mounted drilling rig used to advance an electrical conductance probe and piezometers for ground water sampling was operated from a contract barge platform, shown here on a mudflat in Nauset Marsh during low tide. Photo by John Bratton, USGS Woods Hole Science Center.

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