EPA Air · by county

Air-emissions sources in Marion County, Illinois

• 101Facilities

Every stationary source in Marion County, Illinois that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.

By emissions classification in Marion County

A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.

• Minor source 91
• Major source 8

Inspections in Marion County, by year

A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.

• 2024 — inspections 4
• 2023 — inspections 5
• 2021 — inspections 5
• 2018 — inspections 4

Facilities

County as filed on the facility record. Figures from EPA’s ICIS-AIR download.