MN Well Driller study guide
MN Well Driller · Work through your exam, one topic at a time.
The Minnesota Well Driller credential is a state licensure for people who construct, seal, and abandon water wells in Minnesota. It is aimed at drilling contractors and field drillers who need to demonstrate they can build wells that protect groundwater and public health. The exam is organized into four equally weighted domains: water well construction and drilling practice; well sealing, grouting, and abandonment; Minnesota well code, statutes, and rules; and water quality, sampling, and health protection. Each domain carries 25 percent of the item pool, so no single topic can be skipped. The MN Well Driller study guide has 4 sections and about 1,440 words.
01Water Well Construction and Drilling Practice
This domain tests whether you can build a well that stays sanitary and isolates aquifers: casing, annular-space grouting, wellhead protection, screen selection, development, and pump installation. Minnesota exam items are scenario-based, so expect to apply the rule to a geology and a proposed depth.
373 words, about 2 min02Well Sealing, Grouting, and Abandonment
This domain tests whether you can permanently seal a well so it cannot transmit water between aquifers or provide a pathway for surface contamination. It covers grout materials, placement methods, and the Minnesota abandonment sequence.
368 words, about 2 min03Minnesota Well Code, Statutes, and Rules
This domain tests the legal side of drilling: licensing, permits and notifications, well logs, setback distances, and the division of authority between the Minnesota Department of Health and the Department of Natural Resources. The exam expects you to know which agency does what and which distances are mandatory.
356 words, about 2 min04Water Quality, Sampling, and Health Protection
This domain tests whether you can collect a valid sample and interpret the result for health protection. Expect questions on bacterial sampling, nitrate, disinfection, and the difference between a sampling error and a real water-quality problem.
343 words, about 2 min