EPA Air · by county
Air-emissions sources in Calvert County, Maryland
- 70Facilities
Every stationary source in Calvert County, Maryland 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 Calvert County
Each of the 69 operating major, synthetic minor and minor sources in Calvert County, Maryland has a record page: every source in Calvert County, A to Z.
By emissions classification in Calvert 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.
- Minor source 68
Inspections in Calvert 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.
- 2024 inspections 4
- 2023 inspections 6
- 2022 inspections 4
- 2021 inspections 4
- 2020 inspections 5
- 2018 inspections 10
- 2017 inspections 10
Stack tests in Calvert County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
Inspections in Calvert County, year by year · Stack tests in Calvert County, year by year
Other counties in Maryland
Every county in the state with at least three sources on file.
- Allegany County 126
- Anne Arundel County 672
- Baltimore County 1,116
- Baltimore (city) County 1,788
- Caroline County 44
- Carroll County 224
- Cecil County 142
- Charles County 134
- Dorchester County 85
- Frederick County 383
- Garrett County 79
- Harford County 317
- Howard County 234
- Kent County 47
- Montgomery County 1,332
- Prince George's County 1,450
- Queen Anne's County 45
- Somerset County 58
- St. Mary's County 43
Facilities
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.