Monitoring the water tables in multi-level ground water...

Details Monitoring the water tables in multi-level ground water... Monitoring the water tables in multi-level ground water...

E - Fixed Constructions

21

B

E21B 47/04 (2006.01)

Patent

CA 2714692

An apparatus and method for monitoring the water tables in boreholes, such as boreholes used as sampling wells for sampling contaminants in ground water. Fluctuations in one or more ground water levels can be monitored and recorded using transducers, and the changes in the water levels evaluated and considered, particularly in the context of sampling for contaminants where subsurface pollution remediation is contemplated or ongoing. The changes in ground water levels can be tracked in time and correlated, as desired, with the water sampling regime. The transducers used for monitoring pressure changes attributable to water table changes are located advantageously above the surface of the ground, where they are accessible for re-use, replacement, or repair. Apparatus and method for providing an air-coupling between the transducers and subsurface sampling points is disclosed.

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