EPA Air · by county
Air-emissions sources in Hancock County, Mississippi
- 14Facilities
Every stationary source in Hancock County, Mississippi 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.
By emissions classification in Hancock 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 Hancock 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 5
- 2024 — inspections 9
- 2023 — inspections 3
- 2022 — inspections 8
- 2020 — inspections 7
- 2019 — inspections 3
- 2018 — inspections 7
- 2017 — inspections 3
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| ALPEK POLYESTER MISSISSIPPI INC | Major source | Yes |
| CALGON CARBON CORPORATION | Major source | No |
| EMBERCLEAR GTL LLC, PORT BIENVILLE GAS TO GASOLINE | Synthetic minor source | No |
| GULF SOUTH PIPELINE COMPANY LLC, KILN COMPRESSOR STATION | Major source | No |
| JINDAL TUBULAR USA LLC | Synthetic minor source | No |
| NASA SHARED SERVICE CENTER, NCCIPS | Major source | No |
| NASA, STENNIS SPACE CENTER, AREA 9 | Minor source | No |
| NATIONAL AERONAUTICS AND SPACE ADMINISTRATION, JOHN C STENNIS SPACE CENTER | Major source | No |
| POLYCHEMIE INC | Synthetic minor source | No |
| RELATIVITY SPACE INC | Minor source | No |
| ROLLS ROYCE NORTH AMERICA INC, ROLLS ROYCE OUTDOOR TEST FACILITY | Major source | No |
| SABIC INNOVATIVE PLASTICS US, LLC | Major source | No |
| TENNESSEE GAS PIPELINE COMPANY LLC, BAY ST LOUIS COMPRESSOR STATION NUMBER 530 | Major source | No |
| UNITED STATES NAVAL OCEANOGRAPHIC OFFICE | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.