ACTIVITIES REQUIRING LICENSURE OR REGISTRATION

Subpart 1. Activity requiring licensure or registration. Except for those persons exempted under Minnesota Statutes, section 103I.205 , subdivision 4, paragraph (e), a person must hold a license or registration issued by the commissioner to: A. construct, repair, modify, or seal a well or boring; B. construct or seal a bored geothermal heat exchanger; C. install or remove a groundwater thermal exchange device or SCLHE; D. construct, repair, or seal an elevator boring; E. install or remove a well pump or pumping equipment; F. install, modify, or remove a screen, pitless unit, or pitless adapter; or G. modify or materially affect the yield, water quality, diameter, depth, or casing of a well or boring including: (1) attachment of water conditioning or other devices to the casing of the well or boring; (2) chemical treatment of the well or boring with acid or other chemicals; (3) development or stimulation of a well or boring including the use of explosives or hydrofracturing; or (4) termination of a monitoring well, environmental bore hole, remedial well, or dewatering well casing at-grade, including installation or modification of the protective manhole or vault as required in part 4725.6850 . Subp. 2. Exceptions to licensure or registration. Nothing in this part shall prohibit: A. a person from placing a water sampling device including a well pump or pumping equipment in a monitoring well or remedial well to obtain a water sample if the device is immediately removed after the sample is collected; B. a plumber or plumbing contractor from installing and servicing a water service pipe according to chapter 4714, from the source of supply; C. a water conditioning contractor from installing water conditioning equipment within a building according to chapter 4714; D. a limited well/boring contractor from repairing, installing a pump or pumping equipment, or repairing or sealing a well that the limited well/boring contractor is licensed to construct; and E

icing a water service pipe according to chapter 4714, from the source of supply; C. a water conditioning contractor from installing water conditioning equipment within a building according to chapter 4714; D. a limited well/boring contractor from repairing, installing a pump or pumping equipment, or repairing or sealing a well that the limited well/boring contractor is licensed to construct; and E. a water-supply system operator certified under chapter 9400 or the owner of a transient, noncommunity water system from disinfecting the public well they are directly responsible for, according to part 4725.5550 . Subp. 3. Well contractor license. A person must be licensed as a well contractor to: A. construct, repair, modify, or seal a well or boring except exploratory borings; B. install or remove a pump or pumping equipment; C. any of the activities in subpart 1, item G; and D. install or remove a SCLHE or groundwater thermal exchange device. Subp. 4. Limited well/boring contractor licenses. A person performing any of the activities in items A to F must have either a well contractor's license or have a separate limited well/boring contractor license for each of the limited licensure areas listed in items A to F: A. limited licensure to construct, repair, modify as specified in subpart 1, item G, or seal a dug well or drive-point well; B. limited licensure to install, modify, or repair screens, pitless units or adapters, and casings from the frost line or pitless unit or adapter to the upper termination of the casing; C. limited licensure to install a well pump or pumping equipment, or any of the activities in subpart 1, item G, subitems (1) and (2); D

fy as specified in subpart 1, item G, or seal a dug well or drive-point well; B. limited licensure to install, modify, or repair screens, pitless units or adapters, and casings from the frost line or pitless unit or adapter to the upper termination of the casing; C. limited licensure to install a well pump or pumping equipment, or any of the activities in subpart 1, item G, subitems (1) and (2); D. limited licensure to seal wells or borings, remove obstructions from a well or boring before sealing, remove or perforate casing before sealing, or other activities to seal a well or boring, except that a drive-point well or dug well contractor may seal a dug well or drive-point well, a dewatering well contractor may seal a dewatering well, an elevator boring contractor may seal an elevator boring, a bored geothermal heat exchanger contractor may seal a bored geothermal heat exchanger, and a monitoring well contractor may seal a monitoring well or environmental bore hole; E. limited licensure to construct, repair, seal, or modify as specified in subpart 1, item G, a dewatering well; or F. limited licensure to construct, repair, seal, or modify as specified in subpart 1, item G, a bored geothermal heat exchanger. Subp. 5. Elevator boring contractor license. A person must have an elevator boring contractor's license or a well contractor's license to construct, repair, or seal an elevator boring. Subp. 6. Monitoring well contractor registration. A person must be either licensed as a well contractor or registered as a monitoring well contractor to: A. construct, repair, modify, or seal monitoring wells or environmental bore holes; or B. install pumps in monitoring wells. A person with a limited well/boring contractor license to install a well pump or pumping equipment may install pumps in monitoring wells. Subp. 7. Individual well contractor license

ust be either licensed as a well contractor or registered as a monitoring well contractor to: A. construct, repair, modify, or seal monitoring wells or environmental bore holes; or B. install pumps in monitoring wells. A person with a limited well/boring contractor license to install a well pump or pumping equipment may install pumps in monitoring wells. Subp. 7. Individual well contractor license. A person who is licensed as an individual well contractor must meet the requirements for licensure for a well contractor, except the requirements for a bond as specified in part 4725.1250 .