Environmental Baseline Monitoring in the Area of General Crude Oil- Department of Energy Pleasant Bayou Number 2 A Geopressured Geothermal Test well

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Gustavson, Thomas C.
Howard, Rory C.
McGookey, Douglas A.

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A program to monitor baseline air and water quality, subsidence, microseismic activity, and noise in the vicinity of the Brazoria County geopressured geothermal test wells, Pleasant Bayou III and II, has been underway since March 1978 (fig. 1). The findings of certain parts of the work, including the results of an initial first-order leveling survey completed by Teledyne Geotronics, a preliminary noise survey completed by Radian Corporation, a preliminary microseismicity survey completed by Teledyne Geotech, and an archeological survey of the site completed by Texas A&M University, have been reported earlier and will not be repeated here. The initial report on environmental baseline monitoring at the test well contained descriptions of baseline air and water quality, a noise survey, an inventory of microseismic activity, and a discussion of the installation of a liquid tilt meter (Gustavson, 1979).

The following report continues the description of baseline air and water quality of the test well site, includes an inventory of microseismic activity during 1979 with interpretations of the origin of the events, and discusses the installation and monitoring of a liquid tilt meter at the test well site. In addition, a brief description of flooding at the test site is presented.


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