Velarion Records

EPA Air (ICIS-AIR)

Stationary sources of air pollution

Every facility EPA’s Integrated Compliance Information System for Air tracks as a stationary source -- from large industrial plants to dry cleaners -- with its state, county, primary industry code, and its Clean Air Act emissions classification.

Every source’s record, A to Z

Each operating major, synthetic minor and minor source has a record page: its classification and high-priority violation status, its compliance evaluations, its violations and stack tests, and its enforcement actions and penalties. By state, A to Z:

By emissions classification

Major, synthetic minor, and minor sources, as ICIS-AIR classifies them under the Clean Air Act.

By state

Major sources in nonattainment areas, by state

States with at least one stationary source in a county EPA has designated as not meeting a National Ambient Air Quality Standard (NAAQS), per EPA’s Green Book.

What has happened at these sources, year by year

Compliance evaluations, high-priority Clean Air Act violations and stack tests recorded since 2017 — the same events, counted by state, by county and by industry underneath each year.

Air-emissions inspections

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

High-priority air violations

A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next step down in severity.

Air-emissions stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit.

More ways in

The same stationary sources, grouped three more ways. Each index is the only page above its own hubs.

Facility, location and classification figures from EPA’s ICIS-AIR download. Nonattainment designations from EPA’s Green Book.

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