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.
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.
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.
The Michigan Freedom of Information Act (FOIA) provides all persons (except persons incarcerated in correctional facilities) with access to public records of public bodies. Requests to inspect or receive public records from EGLE must be in writing and describe the requested records with enough detail to enable the department to identify and locate the requested records. Some records are exempt from disclosure under the FOIA or another statute and thus will not be provided. A fee may be charged to process your request. Please note that many records are available that do not require a formal FOIA request.
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EGLE's GIS Team
EGLE-Maps@Michigan.gov
The Michigan PFAS Action Response Team (MPART) was established in 2017 to address the threat of per- and polyfluoroalkyl substances (PFAS) contamination in Michigan, protect public health, and ensure the safety of Michigan’s land, air, and water, while facilitating inter-agency coordination, increasing transparency, and requiring clear standards to ensure accountability.
MPART is charged with providing recommendations to the department director’s and coordinates efforts between them.
PFAS are a large group of man-made chemicals that include perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS). PFAS have been used globally during the past century in manufacturing, firefighting and thousands of common household and other consumer products. These chemicals are persistent in the environment and in the human body – meaning they don’t break down and they can accumulate over time. In recent years, experts have become increasingly concerned by the potential effects of high concentrations of PFAS on human health.
This app features several datasets as part of Michigan PFAS Action Response Team (MPART)'s efforts:
Find locations of official PFAS sites, surface water and fish sampling results, and public water supply results
View the interactive map to explore several Michigan PFAS Action Response Team (MPART)'s PFAS efforts.
The data used in the map is available for download and to view as a table.
Find all of EGLE's web maps and open data centralized in one location.
Fish contaminant data are used to determine whether fish from waters of the state are safe for human and wildlife consumption, and as a surrogate measure of bioaccumulative contaminants in surface water.
Fish contaminant monitoring locations are determined each year based on several factors including available budget, contaminant data collected by other programs (e.g. surface water PFAS monitoring), requests received from the Targeted Monitoring Request program, surveys from our partner agencies (e.g. Michigan Department of Natural Resources [MDNR], and the Water Resources Division's 5-year rotating watershed monitoring strategy).
The fish are collected through a variety of methods including electrofishing, gill-netting, trap-nettings, seining, and hook and line.
Once collected, the fish are stored frozen until a large batch (200 to 300 fish) of samples can be processed and sent over to the MDHHS laboratory for contaminant analysis. The FCMP holds between 6 and 8 fish processing days per year.
The Michigan PFAS Sites layer is the official list of PFAS sites in Michigan. This data is updated as new PFAS sites are encountered.
As of March 2021, a PFAS site is defined as a property where EGLE has a valid groundwater monitoring well sample result that exceeds one or more of Michigan's seven PFAS groundwater cleanup criteria, and based on data, EGLE has determined the property is the location of the source of PFAS contamination (e.g., fire training area where PFAS-containing foam was used).
PFAS concentrations (listed in parts per trillion) in surface water samples collected by EGLE’s Water Resources Division in Michigan. This data is updated quarterly.
Surface water samples analyzed for PFAS are collected through EGLE’s Water Chemistry Monitoring Program and watershed/source tracking investigations. To learn more about EGLE’s effort in sampling lakes and streams for PFAS visit the MPART PFAS Sampling in Lakes & Streams webpage.
Surface water contaminant concentrations are compared against Michigan’s Water Quality Standards. Michigan has derived Part 4 Rule 57 water quality values for five PFAS: Perfluorooctane sulfonate (PFOS), Perfluorooctanoic acid (PFOA), Perfluorobutane sulfonic acid (PFBS), Perfluorohexanesulfonnic Acid (PFHxS) and Perfluorononanoic Acid (PFNA).
Contaminant data often include flags, also known as qualifiers, which are notes attached to data that gives detailed information about that particular result. In the surface water PFAS data layer, PFAS analytes associated with a “K” flag were not detected in the sample and therefore the method detection limit (MDL) is displayed. “J” flagged results indicates an estimated concentration as the result is above the MDL but below the laboratory reporting limit.
The number of PFAS analytes EGLE analyzes in surface water samples has increased over the years. EGLE is currently analyzing for 29 PFAS analytes in surface water samples. In the surface water PFAS data layer, if a flag is listed as “Not Measured”, that particular PFAS analyte was not included in the analysis for that sample.
Questions regarding the surface water PFAS data can be directed to Geoff Rhodes at RhodesG2@Michigan.gov.
The public water supply results include information from both the State of Michigan funded drinking water Per- and Polyfluoroalkyl Substances (PFAS) sampling effort, and ongoing PFAS compliance monitoring of public water supplies in Michigan. It includes, but is not limited to, sample location, sample date, and sample results. This information is presented in two ways on the MPART website:
The public water supply results data is updated annually and was last pulled October 29, 2021[IS1].
The State of Michigan funded PFAS sampling effort data comes from Architecture, Engineering, Construction, Operations, and Management (AECOM), the State of Michigan contractor who collected and submitted the samples to certified drinking water PFAS laboratories. This data was provided to EGLE via AECOM’s Environmental Quality Information System (EQuIS) database tools. These data entries are labeled “StateSurv.”
The ongoing PFAS compliance monitoring data comes from the EGLE Drinking Water and Environmental Health Division (DWEHD) Safe Drinking Water Information System (SDWIS), into which they are entered after the individual public water supplies submit their compliance monitoring results. These data entries are labeled “ComplMon.”
The combined public water supply results data is representative of the PFAS sampling locations, with each location having multiple samples taken, dates for each sample, and the analytical results for each sample.
The combined public water supply results data is representative of the PFAS sampling locations, with each location having multiple samples taken, dates for each sample, and the analytical results for each sample.
Understanding the flags: Contaminant data often include flags, also known as qualifiers, which are notes attached to data that gives detailed information about that particular result.
The locations that have been sampled in this effort include Community Water Supplies (including regional and municipal water supplies, manufactured housing communities, residential apartment buildings, etc.), Nontransient Noncommunity Water Supplies (including schools, businesses, childcare providers, Michigan Head Start locations, motels, resorts, etc.), and Transient Noncommunity Water Supplies (children’s camps and medical care providers).
Understanding the "SystemType" field" See table below. Non-community water supplies are considered "Type II" (serves 25+ people up to six months out of the year)
The map contains one hexbins layer (hexagons are 3 miles in height) showing the general location of the water sampling. The hexbins were created by EGLE using ArcGIS Online's Aggregate Points tool. The hexbins layer contains one field called "Hexagon ID" that connects the general location with the results of samples found within each hexbin area.
The results located within the hexbins are also found in a related table "Statewide Testing Initiative of Public Water Supplies Sampling Results". Note that to protect critical infrastructure information, there is no precise location attached to these results. However, the table does contain a field "Hexagon ID" that connects the result with the general location symbolized by the hexagon layer.
Questions regarding the drinking water sampling PFAS data can be directed to Lisa Dygert at DygertL@Michigan.gov.
The Michigan PFAS Action Response Team (MPART) is a team of seven state agencies established under an Executive Directive in 2017 to ensure coordination in implementing a response to PFAS contamination.
MPART became an enduring body under an Executive Order in 2019.
