North Dakota Administrative Code
Title 33.1 - Department of Environmental Quality
Article 33.1-18 - Water Well Contractors
Chapter 33.1-18-01 - Water Well Construction and Water Well Pump Installation
Section 33.1-18-01-10 - Cross-connection control
All wells discharging to sources of contamination, such as livestock watering tanks, must be provided with an approved backflow prevention device or an airgap to prevent the backflow or siphonage of contaminants into the well. The airgap should provide a minimum vertical distance between the potable water pipe outlet and the water surface of not less than twice the diameter of the outlet pipe. Greater distances are preferable.
Overflow lines from stock watering tanks or other sources of contamination may not discharge to the well.
Please consult the North Dakota state plumbing code for details.
General Authority: NDCC 43-35-19, 43-35-19.1; S.L.2017, ch.199, § 1
Law Implemented: NDCC 43-35-19, 43-35-19.1; S.L.2017, ch.199, §§ 45, 46
