N.D. Admin. Code 7-10-01-01
1. "Antisiphon device" means any equipment effectively designed and constructed to prevent the backflow of an injected chemical into any water supply.
2. "Check valve" means a device effectively designed and constructed to provide positive closure which effectively prohibits the flow of material in the opposite direction of normal flow when operation of the irrigation system pumping plant or injection unit fails or is shut down.
3. "Chemical" means any pesticides, fertilizers, or other chemicals applied by chemigation.
4. "Chemigation" includes, but is not limited to, the application of a chemical to agricultural, nursery, and turf sites.
5. "Interlock" means the arrangement or interconnection of the irrigation pumping plant and chemical injection units in such a manner that, in the event of irrigation pump shut down, shut down of the chemical injection units system will occur.
6. "Low pressure drain" means a self-activating device effectively designed and constructed to drain that portion of an irrigation pipeline or any other method of conveyance whose contents could potentially enter the water supply when operation of the irrigation system pumping plant fails or is shut down.
N.D. Admin Code 7-10-01-01
General Authority: NDCC 4-35.1-03
Law Implemented: NDCC 4-35.1-01, 4-35.1-03