EPA Air · by county
Air-emissions sources in Bristol County, Massachusetts
- 484Facilities
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Every stationary source in Bristol County, Massachusetts 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 Bristol County
Each of the 417 operating major, synthetic minor and minor sources in Bristol County, Massachusetts has a record page: every source in Bristol County, A to Z.
By emissions classification in Bristol 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 Bristol 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 36
- 2025 inspections 32
- 2024 inspections 58
- 2023 inspections 39
- 2022 inspections 60
- 2021 inspections 68
- 2020 inspections 57
- 2019 inspections 65
- 2018 inspections 87
- 2017 inspections 101
Violations in Bristol 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.
- 2026 violations 4
- 2025 violations 3
- 2024 violations 6
- 2023 violations 7
- 2022 violations 3
- 2021 violations 4
- 2018 violations 3
- 2017 violations 7
Stack tests in Bristol County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2024 stack tests 6
- 2022 stack tests 4
- 2021 stack tests 7
- 2020 stack tests 3
- 2019 stack tests 9
- 2018 stack tests 9
- 2017 stack tests 11
Inspections in Bristol County, year by year · Violations in Bristol County, year by year · Stack tests in Bristol County, year by year
Other counties in Massachusetts
Every county in the state with at least three sources on file.
- Barnstable County 95
- Berkshire County 104
- Dukes County 7
- Essex County 376
- Franklin County 66
- Hampden County 432
- Hampshire County 93
- Middlesex County 932
- Nantucket County 9
- Norfolk County 365
- Plymouth County 256
- Suffolk County 412
- Undetermined County 7
- Worcester County 696
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 Bristol county, MA. It lists 484 facilities in Bristol county, of which 8 are major sources.