The USGS Nansemond research station
Detailed Description
The USGS Nansemond research station. The Nansemond extensometer (59D 39) is located in the tan building. The surficial aquifer observation well (59D 40) is located in the green standpipe on the left, the lower (59D 34) and middle (59D 35) Potomac aquifer observation wells are in the middle green standpipe, and the upper (59D 36) Potomac aquifer and Piney Point (59D 37) aquifer observation wells are in the green standpipe on the far right.
Sources/Usage
Public Domain.
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Related
The Virginia Extensometer Network
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Along the Atlantic Coast, a 2000+ ft deep hole has been drilled by the USGS to assess the issues of groundwater pumping, relative sea-level rise, and land subsidence. This video shows the drilling of the first extensometer to measure land subsidence in the North Atlantic Coastal Plain in 30+ years. Land subsidence has been observed at various locations in the southern Chesapeake Bay region at...