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The Rainy River - Headwaters Watershed covers nearly 1.9 million acres, starting in northern Cook and Lake Counties and flowing west/northwesterly into St. Louis County and the Canadian border waters.

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

Sustained efforts by cities and water management organizations have restored water quality in two Dakota County lakes.

MPCA established a network of long-term biological monitoring stations that represent a variety of stream types in their most natural condition.

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

Many industrial by-products are good candidates for land application based on their nutrient content.

Elk River Landfill, Inc. proposes to expand its existing municipal solid waste (MSW) landfill near Elk River.

There are two types of federal air regulations, the National Emission Standards for Hazardous Air Pollutants (NESHAPs) and New Source Performance Standards (NSPSs). Either or both regulations may…

Hot mix asphalt plants in Minnesota must follow federal and state air standards.

Residents' guide to stormwater permitting.

Businesses like grocery, liquor, and convenience stores depend on refrigeration systems. Some of these systems, however, can prove expensive to operate and harmful to the environment.

Guidance on NPDES/SDS construction stormwater requirements

Minnesota businesses, organizations, and municipalities seeking or holding MPCA wastewater permits are charged two basic types of permit fees: application fees and annual fees.

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

Forms, guidance, and assistance to apply for an air quality permit.

To help you quickly determine whether this permit affects you, what your requirements are, and what to do next, the MPCA has developed an Applicability flow chart

The new commercial organics collection will service a 20- to 30-stop route across both Hubbard and Beltrami counties.

A gateway to common regulatory information that affects stationary engines.

Emissions generated from gasoline and diesel powered vehicles are the greatest source of air pollution in Minnesota

Lead-free fishing tackle is not a novelty. We provide this list of vendors that manufacture, retail, or supply nontoxic fishing weights.