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.
Optimal means the water quality parameters are set to a level where corrosion control treatment reduces water corrosivity so that lead and copper levels are below action levels. If a water supply has received a letter from EGLE designating optimal water quality parameter minimums or ranges, the supply must continue to operate and maintain optimal corrosion control treatment including maintaining water quality parameters at or above the minimum values or within ranges designated by EGLE.
Example of optimal water quality parameters set by EGLE for a water supply:
| Parameter | EPTDS WQP range | Distribution WQP range |
|---|---|---|
| pH (standard unit) | Minimum of 7.0 | Minimum of 7.0 |
| Orthophosphate residual | Minimum of 1.8 mg/L as PO4 | Minimum of 1.8 mg/L as PO4 |
If a water supply measures a water quality parameter below the minimum or outside of the EGLE-designated ranges, immediate action should be taken to investigate and resolve the issue. Compliance with the Safe Drinking Water Act is based on excursion days.
If any of the daily values for any of the sample sites on a given day are below the minimum or outside of the EGLE-designated ranges, it results in an excursion day. A daily value can be any of the following:
Excursion days continue to accumulate until the results at that location are above the minimum or inside of the EGLE-designated ranges. More than nine (9) excursion days in a six-month monitoring period will result in a treatment technique violation.
The suite of required water quality parameters to be collected are specified in each water supply’s annual monitoring schedule.
