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Pollutant and runoff maps and data for major watersheds; watershed monitoring and assessment reports.

The MPCA and its many partners collect a wide variety of data on environmental conditions and pollution sources.

Volunteer water monitors collect valuable data used by agencies and organizations across the state to protect and manage Minnesota’s waters.

The MPCA uses the Environmental Quality Information System (EQuIS) to store water quality data from more than 17,000 Minnesota sampling locations.

All facilities with air permits must submit an annual emissions inventory report to the MPCA that tracks actual emissions of major pollutants at that facility.

The MPCA studies Minnesota's solid waste composition and processes to inform policy recommendations, legislative proposals, education and outreach messages, and waste reduction efforts.

Permitted waste facilities, waste utilization projects, and waste haulers in Minnesota must submit regular reports to the MPCA.

The MPCA's regulatory, cleanup, and monitoring programs create and maintain spatial data that serve our environmental protection work and can be shared with partners and researchers.

Guidance for submitting data to MPCA Remediation Division programs: Superfund, Site Assessment, Petroleum Remediation, Brownfields, RCRA Remediation, Closed Landfill, and Integrated Remediation.

Ready-to-run meteorological data suitable for AERMOD.

Guidance for small businesses on reporting air emissions.

MPCA's fish sampling process and why we do it

The Regional Haze Rule requires states to improve visibility in our nation's national parks and wildernesses (Class I areas) and restore them to natural visibility conditions by 2064.

From the days when raw sewage flowed into rivers and lakes, Minnesota’s water bodies have come a long way. However, there is still work to be done in the restoration and protection of our waters.

Air pollution levels in Minnesota have steadily decreased over the past few decades and currently meet federal standards. But even levels that meet or are below these standards can affect people’s…

The MPCA offers environmental audits to help businesses and organizations examine how well they are complying with environmental regulations, and correct any problems that are identified.

Every Minnesotan — regardless of income, race, ethnicity, color, or national origin — has the right to healthy air, sustainable lands, clean water, and a better climate.

Permitted waste facilities, waste projects, and waste haulers in Minnesota must submit regular reports to the MPCA.

Permits for wastewater treatment require monthly, quarterly, or annual reporting of discharge monitoring results

Local governments with SSTS programs submit information to the MPCA each year on SSTS permitting and compliance trends for the previous calendar year. The information helps the agency with long-range planning efforts.