Certified labs by state
North Dakota
North Dakota says private well placement and private well water quality are not regulated by the state, so well owners are responsible for testing and treatment decisions. For residents, the main official sources are the North Dakota Department of Environmental Quality, North Dakota Health and Human Services Laboratory Services, and NDSU Extension.
Checked against official sources on October 4, 2026. Rules and links change; confirm with the office listed before you act.
- Certifies drinking water labs
- North Dakota Department of Environmental Quality
- Official certified lab list
- Official page →
Official resources in North Dakota
Explains that DEQ certifies laboratories that analyze drinking water samples for public-water compliance and provides certification program details.
Resident-facing guide on when to test a private well, what to test for, and how to use North Dakota lab services.
Explains the state's private well bacterial testing service and links residents to laboratory services and sampling schedules.
Land-grant university hub for North Dakota household drinking-water publications, lab information, and interpretation tools.
Official state radon page with testing guidance, mitigation information, and North Dakota measurement and mitigation personnel lists.
Key facts for North Dakota
- ND DEQ certifies laboratories analyzing public-water compliance samples under the Safe Drinking Water Act.
- DEQ says North Dakota does not regulate private well placement or private well water quality.
- DEQ private-well guide says a typical analysis includes bacteria, general chemistry/mineralogy, and nitrate; arsenic or other targeted analyses may also be appropriate.
- NDSU Extension recommends annual testing of existing wells for bacteria, pH, nitrate, and total dissolved solids.
- NDSU Extension recommends a comprehensive water analysis every five years, or sooner if water quality changes.
- DEQ says arsenic is common in North Dakota groundwater; uranium deposits are most common in the southwest; radon forms from uranium in soil and rock.
What to do next
- Start with the DEQ private-well guide, then contact a listed lab for its sample kit and collection instructions before taking any water sample.
- For an existing well, do annual bacteria, pH, nitrate, and total dissolved solids testing, and keep all reports to track trends over time.
- If you have geologic or local land-use concerns, ask for targeted analyses such as arsenic or uranium, and consider radon testing for the home.
Helpful guides
- How to choose a state-certified drinking water lab
- What to test your private well water for (and how often)
- How to collect a well water sample without ruining the test
- How to read a water test report: MCLs, units and flags