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.
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The primary purpose of the Modeling and Meteorology program is to conduct air quality modeling to identify impacts from the construction or modification of facilities that are seeking a permit to install / operate air emission sources. This includes conducting modeling or auditing modeling results as required by State of Michigan Air Pollution Control Rule (R 336.1227) and/or federal rules (40 CFR §52.21).
Additional program responsibilities include:
AQD dispersion modelers created two guidance documents that explain how to perform and submit dispersion modeling for Permit to Install (PTI) applications. These documents outline current air quality modeling policies. The first document details methodologies on how to perform a modeling analysis and the second document provides some technical modeling considerations when setting up a dispersion model. NOTE: the information within does not supersede any state or federal rules.
Robert Irvine, Air Quality Division
IrvineR@Michigan.gov
517-648-7367
This map contains up to date data on the 72 meteorological stations, Air Quality Control Regions (AQCR’s) across Michigan, and the Major and Minor Source baseline dates for each region.
Open the AppThe Meteorology Data Map for Air Permit Dispersion Modeling displays AERMOD ready meteorological data for our 72 available meteorological (met) stations. After selecting a met station, download the stations ZIP files which includes a five-year dataset with both Surface Met Data and Profile Met Data. USEPA recommends the use of one-minute met data for input in dispersion modeling. Their reasoning is that hourly average winds calculated with the one-minute meteorological data are more reflective of actual conditions as opposed to the single two-minute observation used with the hourly met data. For more information on the data, see the About Map or the About Data section.
AERMOD is the preferred USEPA regulatory dispersion model; therefore, only meteorological data to be used with AERMOD is available for download.
When performing regulatory modeling for a stationary source, it is important to use data from the station most representative of conditions at the source location. The representativeness of a station is often measured by proximity. However, proximity alone does not guarantee that a particular station is the most representative station. The AQD can be consulted to help identify which station is the most representative for a specific modeling demonstration.
The Meteorology Data Map for Air Permit Dispersion Modeling also displays Air Quality Control Regions (AQCR’s) across Michigan and the Major and Minor Source baseline dates for each region. This information is displayed by clicking on any county within one of the AQCR’s. For more information on the data, see the About Map or the About Data section.
Jim Haywood, Air Quality Division
HaywoodJ@Michigan.gov
517-648-6766
Modeling for sources emitting criteria pollutants may be required to demonstrate compliance with National Ambient Air Quality Standards (NAAQS). If a demonstration is needed, guidelines specify that ambient backgrounds be added to predicted concentrations. Ambient backgrounds are calculated via data made available from various air monitoring stations located across the region.
The appropriate selection of a particular air monitoring station depends on several factors including, but not limited to, the following:
When calculating a background, use data from the last three years. If data from the last three years is not available, consult with the AQD about alternatives that can be considered.
Stephanie Hengesbach, Air Quality Division
HengesbachS1@Michigan.gov
517-648-7015
