In our February 2015 edition of The Driller, we explore how scientists are able to date groundwater as old as 1 million years. Also, read how to use Thermal Integrity Profiling to assess soil nail integrity.
Geotechnical drilling projects in the Pacific Northwest region of the United States have become increasingly complex as “developable” sites become more problematic because of severe geologic problems and topographic constraints.
A demonstration project in Huntsville, Texas, evaluated the effectiveness of using Thermal Integrity Profiling (TIP) to assess the integrity of soil nails.
A never-ending challenge in tracking groundwater availability and sustainability is the fact that it’s hidden underground, making it difficult to accurately characterize, says Kevin Dennehy, national coordinator of the U.S. Geological Survey’s (USGS) Ground-Water Resources Program.
Two months ago I wrote that in my next column I would write about something a bladder tank won’t do, in my opinion, and that is make up for a weak well or slow pump.
“Raw data show thattheVRFsystemusedtwice asmuchenergyasthe geothermal systemduring the two-yearstudy period,” says Jeff Spitler, leader of the research team.