Air quality across the state is being impacted by wildfire smoke (PM2.5). Information on current conditions and alerts can be found at Michigan.gov/MiAir. Learn how EGLE responds to wildfire smoke at Michigan.gov/egleWildfireSmoke
A complete list of all programs within the Department of Environment, Great Lakes, and Energy (EGLE)
Community involvement and public participation are an essential part of EGLE’s mission, vision, and values.
SARA Title III establishes requirements regarding emergency planning and "Community Right-to-Know" reporting on hazardous and toxic chemicals for federal, state, local, and tribal governments, as well as regulated facilities.
Resources and information on utilizing RRD's data exchange and the Inventory of Facilities.
An interactive map displaying contaminated sites throughout Michigan regulated under Parts 213, 201, and 211.
The Michigan Department of Environment, Great Lakes, and Energy’s (EGLE) Water Well Viewer (WWV), is an interactive mapping system that displays water wells along with other information, such as wellhead protection areas, underground storage tanks, and sites of environmental contamination. Water well locations have been identified by address matching, the use of global positioning systems (GPS), and by legal descriptions.
This system allows water well drilling and pump installation contractors to submit water well records.
EGLE's interactive calendar is designed to provide timely information on decisions before the Director, proposed settlements of contested cases, administrative rules promulgation, public hearings, meetings and comment deadlines, and environmental conferences, workshops and training programs.
Anyone wishing to formally serve legal documents upon the Department of Environment, Great Lakes, and Energy (EGLE), or its officers or employees, may do so by the following methods.
Search is currently unavailable. Please try again later.
The web Browser you are currently using is unsupported, and some features of this site may not work as intended. Please update to a modern browser such as Chrome, Firefox or Edge to experience all features Michigan.gov has to offer.
July 16, 2026
The United States Environmental Protection Agency (EPA) on July 9 redesignated the St. Clair County sulfur dioxide (SO2) nonattainment area back to attainment. The St. Clair County area was Michigan’s last SO2 nonattainment area. The attainment status change came after years of work by the Michigan Department of Environment, Great Lakes, and Energy’s (EGLE), Air Quality Division (AQD). The EPA’s decision brings the entire state of Michigan back into attainment. Additionally, the St. Clair County area was the last SO2 nonattainment area in the Great Lakes Region.
“Having the entire state attaining the SO2 standard is something to be proud of,” said AQD Division Director Annette Switzer. “We were pleased with this decision and will continue our important work to improve Michigan’s air quality."
Former SO2 nonattainment area in St. Clair County The areas’ air quality improvements are due to permanent and enforceable measures. This is a result of the SO2 emission limits put in place and the closure of the St. Clair power plant. SO2 levels in this area are below the EPA’s National Ambient Air Quality Standards (NAAQS). These measures ensure the area will continue to maintain compliance with the 2010 primary 1-hour SO2 standard. EGLE has demonstrated that all Clean Air Act (CAA) requirements necessary to support redesignation have been met.
The area in St. Clair County, (see map) had been considered as being in nonattainment with the SO2 NAAQS since 2016. After years of working towards attainment, EGLE was able to demonstrate through modeling and localized monitoring that the area meets the redesignation requirements under Section 107(d)(3) of the CAA and the EPA guidance.
SO2 is one of six well-studied pollutants called criteria air pollutants that have been identified as being particularly harmful to humans and the environment. To protect the public, the EPA created NAAQS at specific levels designed to reduce exposure and risk. When an area exceeds a NAAQS, it may be designated as nonattainment. To return the area to attainment of the standard, the state must take steps to reduce that pollutant in the outdoor air. Additional information on Michigan’s SO2 attainment status can be found on the SO2 Attainment Status Fact Sheet.
The work does not stop with the redesignation. When an area is designated back to attainment there must be a plan to show it can continue to meet the standard. Michigan has a maintenance plan to show how the region will continue to maintain the level of air quality it has achieved. The plan details how air quality will be maintained, considering projected growth, for a period of 10 years. If SO2 levels no longer meet the criteria, the maintenance plan helps determine the ways the problem can be addressed.
More Information can be found on the State Implementation Plan (SIP) and Attainment webpage under sulfur dioxide (SO2)
If you have questions about the redesignation, contact Robert Irvine at IrvineR@Michigan.gov or 517-648-7367.
A new story map that highlights the success of Michigan’s Leaking Underground Storage Tank program in the Detroit District in Fiscal Year 2025.
EGLE is taking a closer look at the growing microplastics concern all around us.
Meteorologists at the Michigan Department of Environment, Great Lakes, and Energy (EGLE) have issued a statewide air quality alert for elevated levels of fine particulate in the air starting at midnight tonight. This has the potential to be a multi-day event from smoke caused by ongoing wildfires in Canada.
Watch for spotted lanternfly this summer, squish it and report it
This conference is a one-of-a-kind event designed for sustainability professionals in business and government; environmental staff; Environmental, Health, and Safety staff; and community leaders.
Climate finance is public, private, and philanthropic funding for projects that reduce greenhouse gas emissions, increase resilience, lower energy costs, and more.
Trailer tires degrade is as little as three to five years – even when not used. Recycle trailer tires no longer in good condition.
For Lakes Appreciation Month, EGLE staffers share their favorite Michigan inland lakes.
