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Marvin F. Glotfelty, RG, on Physics of Well Development/Design, Part 1 | NGWA: Industry Connected
Marvin F. Glotfelty, RG, on Physics of Well Development/Design, Part 2 | NGWA: Industry Connected
Meet 2024 NGWA Incoming President David Traut, MGWC, CVCLD | NGWA: Industry Connected
Marvin F. Glotfelty, RG, on Deepening Wells to Get More Life Out of Them | NGWA: Industry Connected
Todd Tannehill Previews Keeping Well Rehab Simple Workshop at Groundwater Week 2023
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Nic Sprowls Discusses Drilling a Flowing Well | NGWA: Industry Connected
Marvin F. Glotfelty, RG, on Dual Rotary Drilling Applications | NGWA: Industry Connected
Marvin F. Glotfelty, RG, on Trade Tricks from Older Generations | NGWA: Industry Connected
Marvin F. Glotfelty, RG, on CEUs for Pump Installers in Arizona | NGWA: Industry Connected