The Minnesota Pollution Control Agency (MPCA) invites public participation in the 2025-2027 Triennial Standards Review (TSR) of Minnesota’s water quality standards (WQS). The standards already in place are used to assess the quality of the state’s lakes and streams, set regulatory limits for permitted discharges, and serve as non-regulatory benchmarks for managing contaminated materials or cleanup goals. 

What is the Triennial Standards Review? 

The federal Clean Water Act requires states to review their WQS every three years and update them as necessary. This process involves evaluating existing standards, proposing amendments or revisions, and identifying new standards to protect water resources. This review also is an opportunity to comment on WQS variances granted by the MPCA. The TSR allows for public review and comment on all topics in Minnesota Rules (Minn. R.) chapters 7050 and 7052. 

The MPCA’s work plan for 2025–2027 includes both ongoing rulemaking projects and future initiatives still in development. A detailed description of the work plan and project timelines is available. 

Why does this review matter? 

1. Public engagement: The process allows public input on WQS priorities, including input from state agencies like Minnesota Department of Health, Minnesota Department of Agriculture, and Tribal Nations. 

1. Long-term planning: Standards development takes years of data collection and analysis. Updating the work plan every three years ensures transparency and alignment with available science, data, and staffing. 

Key Dates 

• Public comment period: Dec. 9, 2024 – Feb. 7, 2025 

• Public meetings:
  • Jan. 23, 2025, 6-7:30 p.m. (Zoom link: Meeting ID: 161 411 0680) 
  • Jan. 28, 2025, 11-12:30 p.m. (Zoom link: Meeting ID: 160 306 6478)

• MPCA review and work plan updates: Feb.–March 2025 

• Work plan submission to EPA: March–April 2025 

How to Participate 

We welcome your feedback on WQS revisions, amendments, or additions to protect Minnesota’s water quality. This includes items on the draft work plan or other topics in Minn. R. chapters 7050 and 7052. 

Submit written comments through SmartComment by 11:59 p.m. on Friday, Feb. 7, 2025. All submissions will be included in the TSR record.