EPA Air · by county
Air-emissions sources in Placer County, California
- 42Facilities
Every stationary source in Placer County, California 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.
Every source’s record in Placer County
Each of the 42 operating major, synthetic minor and minor sources in Placer County, California has a record page: every source in Placer County, A to Z.
By emissions classification in Placer 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.
Inspections in Placer 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.
- 2025 inspections 4
- 2024 inspections 15
- 2023 inspections 27
- 2022 inspections 26
- 2021 inspections 17
- 2020 inspections 16
- 2019 inspections 17
- 2018 inspections 25
- 2017 inspections 16
Violations in Placer County, by year
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.
Stack tests in Placer County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2024 stack tests 12
- 2023 stack tests 8
- 2022 stack tests 8
- 2021 stack tests 10
- 2020 stack tests 12
- 2019 stack tests 12
- 2018 stack tests 14
- 2017 stack tests 9
Inspections in Placer County, year by year · Violations in Placer County, year by year · Stack tests in Placer County, year by year
Other counties in California
Every county in the state with at least three sources on file.
- Lassen County 3
- Los Angeles County 390
- Madera County 22
- Marin County 5
- Mendocino County 3
- Merced County 23
- Modoc County 4
- Monterey County 14
- Napa County 5
- Orange County 110
- Riverside County 65
- Sacramento County 97
- San Bernardino County 123
- San Diego County 126
- San Francisco County 36
- San Joaquin County 74
- San Luis Obispo County 16
- San Mateo County 34
- Santa Barbara County 136
Facilities
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register for Placer county, CA. It lists 42 facilities in Placer county and 5 major sources.