Health Risk Limits Rules for Groundwater
Proposed Rule Amendments

December 2024

Session Law HRL rulemaking project (estimated timeframe: 2023-2025)

The Minnesota Department of Health (MDH) promulgates Health Risk Limits (HRLs) Rules for chemicals in groundwater. In 2023, the Minnesota Legislature passed a Session Law that states, "By July 1, 2026, the commissioner of health must amend the health risk limit for perfluorooctane sulfonate (PFOS) in Minnesota Rules, part 4717.7860, subpart 15, so that the health risk limit does not exceed 0.015 parts per billion...." (Laws of Minnesota 2023, Chapter 60, Article 3, Section 34) MDH will propose Health Risk Limits that will fulfill this requirement, as well as update five other health risk limits. A Notice of Intent was published in the State Register on November 4, 2024. The proposed rules can be viewed below. MDH accepted comments on these proposed rules through the Office of Administrative Hearings' eComments site until December 4, 2024, at 4:30 p.m. The comment period is now closed. 

Proposed Health Risk Limits Rules amendments 2024 (PDF), Office of the Revisor (Dated 10-17-24). Changes are shown with underlining for language to be added and strikethrough for language to be removed.

Proposed Health Risk Limits Rules amendments (PDF), unofficial version by MDH. The content is the same as the version from Office of the Revisor, but the presentation is different for better accessibility with assistive technology. The language to add and remove wording is indicated by words like "ADD," and "DELETE."

Please Contact Health Risk Assessment with questions.