EPA Air · stack tests by state and year
Air-emissions stack tests in California, 2020
- 15,352Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in California during 2020; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in California, 2020
- Kern County 8,397
- Fresno County 2,425
- Kings County 1,250
- San Joaquin County 977
- Stanislaus County 846
- Tulare County 320
- Los Angeles County 320
- Merced County 318
- Madera County 195
- San Bernardino County 94
- Orange County 58
- Riverside County 35
- Ventura County 25
- Sacramento County 22
- Monterey County 22
- San Diego County 12
- Placer County 12
- Contra Costa County 5
- Sonoma County 5
- Santa Clara County 4
- Alameda County 4
California, other years
Air-emissions stack tests recorded in California, 2020
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | MT POSO COGEN-PYRO PACIFIC CO. — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-15 | FOSTER FOOD PRODUCTS — high-priority violation on file | LIVINGSTON, Merced, CA | Pass | Local |
| 2020-12-15 | FOSTER FOOD PRODUCTS — high-priority violation on file | LIVINGSTON, Merced, CA | Pass | Local |
| 2020-12-14 | FOSTER FOOD PRODUCTS — high-priority violation on file | LIVINGSTON, Merced, CA | Pass | Local |
| 2020-12-14 | FOSTER FOOD PRODUCTS — high-priority violation on file | LIVINGSTON, Merced, CA | Pass | Local |
| 2020-12-14 | FOSTER FOOD PRODUCTS — high-priority violation on file | LIVINGSTON, Merced, CA | Pass | Local |
| 2020-12-14 | FOSTER FOOD PRODUCTS — high-priority violation on file | LIVINGSTON, Merced, CA | Pass | Local |
| 2020-12-12 | TST INC | FONTANA, San Bernardino, CA | Pass | Local |
| 2020-12-11 | ROBINSON HELICOPTER CO INC | TORRANCE, Los Angeles, CA | Pass | Local |
| 2020-12-10 | KAISER ALUMINUM FABRICATED PRODUCTS | LOS ANGELES, Los Angeles, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-12-10 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.