Today we are seeing much emphasis being placed on proper grouting techniques and materials; however, an issue of at least equal importance is that of sealing unused water wells.
There has been limited prior work performed in assessing the annular space region created during HDD installations. In one project, researchers performed testing on three 530-foot HDD installations of 12-inch diameter steel pipe to monitor changes in pore pressures before, during and after installation.
We began this section on friction loss pressure drop last month with a look at the factors that contribute to friction loss. This month, we will use this information to calculate the pressure drop due to friction loss in a typical residential system.
Daleo Inc. rode the HDD-market roller coaster and survived. Today, 80 percent of the Gilroy, Calif.-based company’s business still is fiber-optics cable installation.
I recently had an interesting telephone conversation with Dale Klassen, sales manager for G.P. Fiberglass Ltd., and the topic quickly turned to water well drillers and what they charge customers for their services ...
On Aug. 29, 2005, southeast Louisiana took a direct hit from the category 4 Hurricane Katrina, and Shallow Draft Elevating Boats Inc. in Plaquemines Parish, La., was located at what now is referred to as “ground zero.”
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