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The amount of hazardous waste you generate will dictate your waste generator status.

This page provides assistance for local units of government with development and implementation of their SSTS program.

Information for cannabis growers and processors to understand environmental regulations and permits that may apply to their businesses.

The Small Business Ombudsman is an independent entity responsible for reviewing environmental regulatory activities to ensure that they are fair, reasonable and appropriate for Minnesota's small businesses that have to comply with environmental regulations.

The MPCA regulates both underground and aboveground commercial storage tanks above a certain size that hold petroleum or hazardous liquids.

Determine what type(s) of water quality permit is required at facilities that mine construction sand and gravel; industrial sand; quarry limestone, granite or dimension stone; operate hot mix asphalt production areas; produce concrete block, brick and other products; and/or produce ready-mix concrete.

Conditionally exempt facilities do not need an air quality permit if they follow specific requirements.

Underground storage tank (UST) facilities must designate owners, operators, or employees as Class A, Class B, and Class C operators.

The MPCA's Petroleum Remediation Program addresses risks to people and the environment from contamination caused by leaking petroleum storage tanks.

Certain proposed projects — based on their nature, size, location, or other factors — must go through an environmental review before any required permits or approvals are issued.

Spilled mercury, even small quantities in the home, should be cleaned up quickly and properly so that people don't come in contact with it or breathe its vapors.

In Minnesota, handlers of oil and hazardous substances are required to prepare for potential spills and take steps to prevent them.

Smith Foundry has ceased operations at its East Phillips facility after an investigation and settlement with the U.S. EPA that the MPCA supported.

Apply for funds to help assess sites with known or suspected contamination and develop remediation plans.

Environmental information and permits that affect businesses using stationary engines or generators.

From 2023-2025, Northshore Mining released recycled water to the ground seven times and water relating to mining processes four times. Its largest unpermitted release was nearly 400,000 gallons of recycled water. Northshore Mining has documented equipment failure as the reason for the 11 releases.

Environmental information and permits that affect businesses using boilers.

Details on Minnesota state contracts with businesses that provide environmental emergency response services.

The MPCA regulates most aspects of livestock management including the location, design, construction, operation, and management of feedlots and manure-handling facilities.

Learn what steps you can take to reduce the pollution from small neighborhood sources.