EPA Air · stack tests by county and year

Air-emissions stack tests in Jackson County, Mississippi, 2025

47Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Jackson County, Mississippi during 2025. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Jackson County facility page.

Jackson County, Mississippi, 2025

Air-emissions stack tests in Jackson County, other years

Air-emissions stack tests recorded in Jackson County, Mississippi, 2025

Date	Facility	Kind	Agency
2025-12-03	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-10-21	MISSISSIPPI POWER COMPANY, CHEVRON COGENERATING PLANT	Pass	State
2025-10-13	DESTIN PIPELINE COMPANY LLC, PASCAGOULA COMPRESSOR STATION	Pass	State
2025-10-13	DESTIN PIPELINE COMPANY LLC, PASCAGOULA COMPRESSOR STATION	Pass	State
2025-09-18	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-09-11	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-07-29	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-07-29	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-07-23	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-06-25	MISSISSIPPI POWER COMPANY, CHEVRON COGENERATING PLANT	Pass	State
2025-06-25	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-06-18	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-06-18	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-06-18	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-06-18	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-06-18	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-06-18	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-06-03	GULF SOUTH PIPELINE COMPANY LLC, MOSS POINT COMPRESSOR STATION	Pass	State
2025-06-03	GULF SOUTH PIPELINE COMPANY LLC, MOSS POINT COMPRESSOR STATION	Pass	State
2025-06-03	GULF SOUTH PIPELINE COMPANY LLC, MOSS POINT COMPRESSOR STATION	Pass	State
2025-05-28	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-05-28	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-05-20	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-05-20	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-05-08	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-05-08	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-05-06	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-04-23	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-04-23	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-04-23	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-04-22	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-04-22	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-04-22	MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL	Pass	State
2025-03-13	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-03-13	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-03-13	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-03-13	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-03-12	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-03-12	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-03-12	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-03-12	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-03-11	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-03-11	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-03-11	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-03-11	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-03-04	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State
2025-03-04	CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY	Pass	State

Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.

The Pay Desk is the free weekly executive pay briefing — one company at a time, every number traceable to a public filing.We’ll email you a link to confirm. Unsubscribe any time.