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	Marvin F. Glotfelty, RG, provides a filter pack design clarification.
	Marvin F. Glotfelty, RG, explains the concept of designing a well with a large casing volume.
	Marvin F. Glotfelty, RG, explains program management.
	Marvin F. Glotfelty, RG, discusses cement annular seals.
	Marvin F. Glotfelty, RG, details measurement tools in the drilling industry.
	Marvin F. Glotfelty, RG, shares career lessons he wished he knew.
	Marvin F. Glotfelty, RG, provides an overview of cable tool drilling.
	Marvin F. Glotfelty, RG, details flooded reverse drilling.
	Marvin F. Glotfelty, RG, delves into the basics of dual rotary drilling.
	Marvin F. Glotfelty, RG, discusses properties of steel casing.
	Chip Nelson discusses GEFCO/BAUER Equipment America in the water well market.
	Marvin F. Glotfelty, RG, gives primer on mud and air rotary drilling.
	Marcus Laibe talks drill rigs and conducting business during a pandemic.
	Marvin F. Glotfelty, RG, discusses well design from a water quality perspective.
	Marvin F. Glotfelty, RG, discusses large aquifer voids adjacent to the borehole or well.
	Marvin F. Glotfelty, RG, gives an overview of drilling fluids.
	Marvin F. Glotfelty, RG, explains key points on properly decommissioning a well.
	Marvin F. Glotfelty, RG, discusses ways to evaluate a well’s flow profile.
	Marvin F. Glotfelty, RG, covers well development techniques and concepts.
	Marvin F. Glotfelty, RG, gives an overview of filter pack sand selection and design.
	Thomas M. Hanna, RPG, discusses need for a universal system for borehole logging.
	Marvin F. Glotfelty, RG, covers the importance of technical specification verbiage.
	Marvin F. Glotfelty, RG, discusses impact of annulus width on well performance.
	Curtis King, CWD/PI, shares thoughts on winning the 2019 NGWA Special Recognition and Life Member Awards.
	Chip Nelson explains automatic grease systems and grease banks.
	Read about rules geologists and engineers can follow when heading to the jobsite.
	Read The Water Well Geologist’s Field Notebook—Using the Penetration Rate.
	Read Water Well Construction Observation for a Field Geologist by Christopher S. Johnson, PG, CHg.
	Read General Well Design Considerations: Part 3 from Christopher S. Johnson, PG, CHg.
	Read General Well Design Considerations: Part 2 from Christopher S. Johnson, PG, CHg.
	Read General Well Design Considerations: Part 1 from Christopher S. Johnson, PG, CHg.
	Watch the video interview with Tom Downey, CWD/PI, on constructing irrigation wells and selecting pumping systems.
	Watch a video interview on drilling by Marvin F. Glotfelty, RG, a principal hydrogeologist at Clear Creek Associates LLC in Scottsdale, Arizona.
	Watch a video interview on well maintenance with Michael Schnieders, PG, PH-GW, president and principal hydrogeologist at Water Systems Engineering Inc. in Ottawa, Kansas.
	Get drilling tips on preparing to drill overseas by two industry veterans.
	Watch a video interview with drilling veteran Gary Shawver, MGWC, who discusses advancements of today’s drilling rig and practical tips to extend the life of your rig.
	Read about the business opportunities at mine sites for contractors by John Fowler, CSP, CMSP.
	Learn how many factors play a role in whether a borehole deviates or not in an article by Christopher S. Johnson, PG, Chg.
	Learn smart practices for good well design in an article by industry veteran Christopher S. Johnson, PG, Chg.
	Read about keeping focused on core principles when it comes to well construction by Michael J. Schnieders, PG, PH-GW.