EPA Air · by county
Air-emissions sources in Merced County, California
- 23Facilities
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Every stationary source in Merced 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 Merced County
Each of the 23 operating major, synthetic minor and minor sources in Merced County, California has a record page: every source in Merced County, A to Z.
By emissions classification in Merced 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 Merced 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.
- 2026 inspections 61
- 2025 inspections 85
- 2024 inspections 93
- 2023 inspections 85
- 2022 inspections 86
- 2021 inspections 60
- 2020 inspections 75
- 2019 inspections 65
- 2018 inspections 52
- 2017 inspections 50
Violations in Merced 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.
- 2024 violations 10
- 2023 violations 16
- 2022 violations 40
- 2021 violations 19
- 2020 violations 17
- 2019 violations 14
- 2018 violations 13
- 2017 violations 15
Stack tests in Merced County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2026 stack tests 32
- 2025 stack tests 170
- 2024 stack tests 538
- 2023 stack tests 226
- 2022 stack tests 295
- 2021 stack tests 494
- 2020 stack tests 318
- 2019 stack tests 138
- 2018 stack tests 214
- 2017 stack tests 308
Inspections in Merced County, year by year · Violations in Merced County, year by year · Stack tests in Merced County, year by year
Other counties in California
Every county in the state with at least three sources on file.
- Glenn County 4
- Humboldt County 9
- Imperial County 41
- Kern County 164
- Kings County 23
- Lassen County 3
- Los Angeles County 390
- Madera County 22
- Marin County 5
- Mendocino County 3
- Modoc County 4
- Monterey County 14
- Napa County 5
- Orange County 110
- Placer County 42
- Riverside County 65
- Sacramento County 97
- San Bernardino County 123
- San Diego County 126
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| CALAVERAS MATERIALS | Synthetic minor source | Yes |
| CASTLE AIRPORT AVIATION & DEVELOP CENTER | Minor source | No |
| DOLE PACKAGED FOODS LLC | Synthetic minor source | No |
| E&J GALLO WINERY | Major source | Yes |
| ELECTRIC DRIVES INC | Synthetic minor source | No |
| FINELINE INDUSTRIES INC | Major source | No |
| FOSTER FOOD PRODUCTS | Synthetic minor source | Yes |
| GALLO CATTLE CO (JOSEPH GALLO FARMS) | Minor source | No |
| GREIF BROTHERS | Synthetic minor source | Yes |
| HIGHWAY 59 LANDFILL | Major source | Yes |
| HILMAR CHEESE COMPANY | Major source | Yes |
| HUGHSON NUT CO | Major source | No |
| INGOMAR PACKING COMPANY | Major source | No |
| LIBERTY PACKING CO. | Synthetic minor source | No |
| M B SPORTS | Synthetic minor source | No |
| MERCED COUNTY DEPARTMENT OF PUBLIC WORKS | Major source | No |
| MERCED POWER LLC | Synthetic minor source | Yes |
| MINTURN HULLER COOP INC | Minor source | No |
| MORNING STAR PACKING CO | Synthetic minor source | No |
| PARREIRA ALMOND PROCESSING | Major source | Yes |
| PUSATERI NUT COMPANY | Synthetic minor source | No |
| SENSIENT DEHYDRATED FLAVORS COMPANY | Major source | No |
| THIARA ORCHARDS | Major source | No |
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 Merced county, CA. It lists 23 facilities in Merced county and 10 major sources.