Irrigation systems, antipollution devices and valves, and agricultural chemical injection units, pumps, and solution tanks used for chemigation purposes must be installed and maintained to ensure proper functioning during chemigation. Maintenance necessary to assure proper functioning of the device must be performed before introduction of agricultural chemicals.
If modification or changes in design, technology, irrigation practices, or other similar reasons warrant the use or placement of equipment other than that specified in parts 1505.2100 to 1505.2800, the commissioner may allow the changes if protection to the water supply is at least equal to that provided by the equipment or equipment placement required in parts 1505.2100 to 1505.2800.
Minn. R. agency 105, ch. 1505, AGRICULTURAL CHEMICAL CHEMIGATION SAFETY, pt. 1505.2700
Statutory Authority: MS s 18C.575