Air Quality Source Information

Contact: See Below
Agency: Environment, Great Lakes, and Energy

The Air Quality Division posts information about facilities regulated by state and federal air quality regulations in the State of Michigan. This information includes, but is not limited to, Permits to Install (PTI), Renewable Operating Permits (ROP), inspection reports, stack test report executive summaries, enforcement documents, annual emissions reports, and air quality actions open for comment*.

Facility Information (Permits, Violations, Emissions Testing, and More)

Facility files (including asbestos and dry cleaning sources) consist of minor and major source air permits, emissions testing, violation notices and responses, compliance evaluations, staff activity reports, and more. Facility information is updated with any existing new files every Monday.

Sources are identified by State Registration Number (SRN), an Unidentified Facility Number (beginning with the letter "U"), or an Establishment Number (beginning with the letters "EN") and are sorted by:

And for asbestos files only:

Facility-Specific Web Pages

Air Emissions

The Annual Air Emissions Query contains historical air emission information from facilities required to report air emissions on an annual basis.

Permit Documents*

Facilities with air permits are sorted by State Registration Number (SRN), name, or location.

Here is a list of pending PTI applications currently undergoing engineer review.

Here is a list of PTI applications of particular interest to the public with supporting documentation.

Actions Open for Public Comment

How Available Files are Named*

File Name File Type
SRN_ASBVN Asbestos Violation Notices
EN_DCVN Dry Cleaning Violation Notices
Enforcement Documents
Inspection Reports
SRN_TEST Stack Test Report Executive Summaries
SRN_VN Violation Notices
Response to Violation Notice
(ASB = Abestos)
SRN_SEM Surface Emission Monitoring

* If a link leads to a page with only "parent directory" showing, this indicates that no documents are available currently for this source. Information may be available pre-dating October 1, 2013, and can be requested via FOIA.

PDF Bookmarks

PDFs ten pages or longer have bookmarks to help you navigate better. Not all browsers display them. See below.

Browser Display Upon Opening? Display Menu/Button? Workaround
Microsoft Internet Explorer Yes, if the document is set to do so. If you have Adobe Acrobat Reader or the full version installed on your computer, you may see a navigation pane on the left. Use the bookmark button (looks like a short ribbon) to turn on/off bookmarks display.
Microsoft Edge No, bookmarks will not display upon opening. Yes, if the PDF has bookmarks, a Table of Contents (TOC) icon will appear on the upper left of the screen below the menu bar. Use the TOC button on the upper left to turn on/off the TOC (i.e. bookmarks) display.
Google Chrome No, bookmarks will not display upon opening. Yes, if the PDF has bookmarks, a bookmark icon will appear on the upper right of the screen below the menu bar. Use the bookmark button on the upper right to turn on/off the bookmarks display.
Mozilla Firefox Firefox may require you to download the PDF rather than open it in the browser.. No, there are no menu options or buttons that will display bookmarks. If you are prompted to down the PDF, you may do so and use your Adobe software to view the PDF with bookmarks. Just remember that your downloaded copy may become obsolete over time.

More Information