Minn. Stat. § 103I.641
Subd. 1. Requirements.
A person may not drill or construct an excavation used to install a vertical heat exchanger unless the person is a limited well/boring contractor licensed for constructing, repairing, and sealing vertical heat exchangers or a well contractor.
Subd. 2. Regulations for vertical heat exchangers.
Vertical heat exchangers must be constructed, maintained, and sealed under the provisions of this chapter.
Subd. 3. Permit required.
(b) As a condition of the permit, the owner of the property where the vertical heat exchanger is to be installed must agree to allow inspection by the commissioner during regular working hours of department of health inspectors.
* NOTE: The amendments to subdivisions 1 and 3 by Laws 1999, *chapter 153, sections 13 and 14, are effective August 1, 2000. *Laws 1999, chapter 153, section 15.