NGWA releases study on potential cost of pathogen-contaminated wells, page 20
December 2020
The Groundwater
NGWA
Association
®
Workforce
Development
in the Water Well
Industry
Where do owners find their next
employees?, page 24
Also:
Repowering drill rig engines to be
Tier 4 emissions compliant, page 33
Evaluating business growth
strategies, page 52
