The Groundwater Foundation announces Fred Rothauge, CWD, as 2023 McEllhiney Lecturer, page 16
July 2022
The Groundwater
NGWA
Association
®
Piping Materials
for Geothermal
Applications
It's important to understand
the piping materials used for
geothermal jobs, page 20
Also:
New company is pioneering
geothermal heating and
cooling, page 24
OSHA is looking into hot
conditions for workers,
page 34