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Environmental Health Division
Expedited Rulemaking for Submerged Closed Loop Heat Exchangers
Minnesota Statutes, chapter 103I authorized the commissioner to adopt rules “to implement requirements for the permitting and installation of Submerged Closed Loop Heat Exchangers…” The Minnesota Department of Health was also authorized to amend these adopted rules using an expedited process. During this expedited process, MDH is required to consider possible revisions to screen configurations and isolation distances for water-supply wells used in Submerged Closed Loop Heat Exchanger (SCLHE) systems.
A submerged closed loop heat exchanger must not be installed without a permit granted by the commissioner.
On this page:
How to Comment
Revision documents
Proposed draft rule language
Advisory Committee
Rulemaking contacts
How to comment for SCLHE Expedited rulemaking
If you have comments on the proposed expedited rule revisions (published in the State Register 12/22/2025) please submit your suggestions through the link below.
- Rulemaking eComments Website: Form and Filing eComments
Proposed revision documents
- Notice of Intent to Adopt Expedited Rules without a Public Hearing:
Proposed Amendments to Submerged Closed Loop Heat Exchangers, Minnesota Rules, chapter 4725 (PDF)
Proposed draft rule language
Advisory Committee
Meeting agendas and minutes
- Advisory Committee Minutes 11/12/2025 (PDF)
- Advisory Committee Minutes 10/22/2025 (PDF)
- Advisory Committee Agenda 09/23/2025 (PDF)
- Advisory Committee Minutes 09/23/2025 (PDF)
- Advisory Committee Agenda 06/02/2025 (PDF)
- Advisory Committee Minutes 06/02/2025 (PDF)
- Advisory Committee Agenda 05/12/2025 (PDF)
- Advisory Committee Minutes 05/12/2025 (PDF)
- Advisory Committee Agenda 04/14/2025 (PDF)
- Advisory Committee Minutes 04/14/2025 (PDF)
- Advisory Committee Agenda 04/03/2025 (PDF)
- Advisory Committee Minutes 04/03/2025 (PDF)
- Advisory Committee Agenda 03/20/2025 (PDF)
- Advisory Committee Minutes 03/20/2025 (PDF)
Rulemaking contacts
Questions regarding the rulemaking process or the revised rules may be directed to:
Avery Guertin or Jon Olson
wellrules.mdh@state.mn.us
651-201-4600 or 800-393-9808