Featured ARTICLES
21 Five Ways Technology Is
Impacting Agricultural Systems
By David Stover
Variable frequency drives can be a
game-changer for your agricultural
customers.
25 The Expanding World of Reverse
Circulation Drilling
By George Burnhart
The environmentally friendly process
is ideal for large-diameter wells in a
variety of formations.
30
Water Well Journal Q&A
Bo Andersson, president and CEO
of Flomatic Corp.
By Mike Price
Industry veteran reflects on a range of
topics and looks ahead to the future.
August 2019
Vol. 73, No. 8
waterwelljournal.com
About the cover: Pictured is a drone shot showing a geo-
thermal project for the Minnesota Army National Guard Readiness
Center in Arden Hills, Minnesota. Bergerson-Caswell Inc. installed
240 borings to 140 feet drilled in sand/clay February-April and tied
the system in at the beginning of May. The bores were 4¾ inches
in diameter with 1-inch U-bend loops installed and grouted with
a thermally enhanced bentonite. It included 23 separate zones ran
into an exterior buried valve vault with 8-inch mains to the building.
Photo courtesy David Henrich, CWD/PI, CVCLD, president of
Bergerson-Caswell in Maple Plain, Minnesota.
2 August 2019 WWJ
