Water Well Drilling Contractors in North Dakota

Geology & Depth

North Dakota's western Williston Basin has thick layers of Cretaceous and Tertiary sedimentary rock including the Fox Hills, Hell Creek, and Fort Union formations. Eastern North Dakota has glacial drift deposits — sand, gravel, and lake sediments from Glacial Lake Agassiz — that provide productive shallow aquifers.

Most residential wells in North Dakota are drilled to 175 feet, with a typical range of 40–500 feet. Water table depth: 20-80 feet in eastern glacial deposits; 100-400 feet in western bedrock formations.

Permits & Licensing

North Dakota requires well drillers to be licensed by the North Dakota State Water Commission and Board of Water Well Contractors. Drillers must pass competency examinations.

Permit authority: North Dakota State Water Commission; all water wells must be permitted and registered. Expect $50-$200 in permit fees.

Primary Aquifer

Glacial Drift Aquifers / Fox Hills-Hell Creek Aquifer / Dakota Aquifer. About 15% of North Dakota households use private wells, with higher rates in rural farming communities across the western oil patch and central grain belt.

Best drilling months: May through October; extreme cold (-30°F) and 5-6 foot frost depths make winter drilling extremely difficult.

Common Water Quality Concerns

North Dakota well water commonly contains: iron, manganese, sodium, sulfate, hardness, total dissolved solids, arsenic in some glacial aquifers. A comprehensive water test after drilling (typically $150–$500) will identify which treatments, if any, your well needs.