Well Water Testing Requirements in North Dakota (ND)
North Dakota does not require ongoing private well testing. New wells must be tested for bacteria and nitrate. The ND Department of Environmental Quality manages well programs. Extremely hard water is common throughout the state. Oil development areas have additional contamination risks. The state has approximately 80,000 private wells.
Required Contaminant Tests in North Dakota
North Dakota requires testing for the following 2 contaminants for new wells:
Common Contaminants in North Dakota Well Water
Based on geological conditions, land use patterns, and historical testing data, these contaminants are commonly found in North Dakota private wells. Even if not required by law, testing for these contaminants is recommended.
Testing Requirements by City in North Dakota
Local testing requirements may vary from state-level regulations. Some counties and municipalities have stricter rules than the state minimum. Below are details for major cities in North Dakota.
| City | Testing Required | Notes |
|---|---|---|
| Fargo | No | Cass County; Red River area |
| Bismarck | No | State capital; Burleigh County |
| Grand Forks | No | Grand Forks County; Red River aquifer |
| Minot | No | Ward County; Souris River area |
| Williston | No | Williams County; Bakken oil area |
Testing Recommendations for North Dakota Well Owners
- Even though your state does not require testing, the EPA recommends testing private well water annually for bacteria and nitrate.
- Nitrate contamination is common in your area. Test annually, especially if near agricultural land.
Understanding North Dakota's Well Water Regulations
Testing Frequency
North Dakota does not require ongoing testing of private well water. However, the EPA recommends all private well owners test annually for bacteria and nitrate, regardless of state requirements. Proactive testing is the only way to ensure your well water is safe.
New Well Requirements
North Dakota requires testing when a new well is constructed or an existing well is significantly modified. The required tests include bacteria (coliform/e. coli), nitrate, and the well must pass these tests before being put into service for drinking water. Well construction must comply with state standards and a permit is required before drilling.
State Laboratory and Testing Resources
North Dakota operates a state laboratory or participates in a state lab network that provides water testing services, often at subsidized rates below commercial laboratory prices. Contact your state health department or environmental agency for current pricing and sample submission procedures. Many county health departments also offer basic bacteria testing, sometimes at no cost. The average cost for a comprehensive well water test in North Dakota is approximately $100, though a basic bacteria and nitrate screen may cost significantly less.
How North Dakota Compares
North Dakota has a minimal level of well water testing regulation. Below are other states with similar regulatory approaches.
| State | Testing Required | Test at Sale | Required Tests | Avg. Cost |
|---|---|---|---|---|
| North Dakota (ND) | No | No | 2 | $100 |
| Alabama (AL) | No | No | 1 | $150 |
| Alaska (AK) | No | No | 2 | $200 |
| Arizona (AZ) | No | No | 2 | $175 |
| Arkansas (AR) | No | No | 1 | $125 |
| California (CA) | No | No | 2 | $250 |
Check Other States
Use our well water testing lookup tool to check requirements for any state, or browse all 50 states ranked by testing strictness. If you are moving to or buying property in North Dakota, understanding the testing requirements is an important part of your due diligence.