EPA Air · stack tests by county and year

Air-emissions stack tests in Smith County, Mississippi, 2026

25Stack 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 Smith County, Mississippi during 2026. 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 Smith County facility page.

Smith County, Mississippi, 2026

Air-emissions stack tests in Smith County, other years

Air-emissions stack tests recorded in Smith County, Mississippi, 2026

Date	Facility	Kind	Agency
2026-07-29	TELLUS OPERATING GROUP LLC, RALEIGH CO2 PLANT	Pass	State
2026-06-24	BAKELITE CHEMICALS LLC, TAYLORSVILLE — high-priority violation on file	Pass	State
2026-06-24	BAKELITE CHEMICALS LLC, TAYLORSVILLE — high-priority violation on file	Pass	State
2026-06-24	BAKELITE CHEMICALS LLC, TAYLORSVILLE — high-priority violation on file	Pass	State
2026-05-07	BAKELITE CHEMICALS LLC, TAYLORSVILLE — high-priority violation on file	Pass	State
2026-05-07	BAKELITE CHEMICALS LLC, TAYLORSVILLE — high-priority violation on file	Pass	State
2026-05-07	BAKELITE CHEMICALS LLC, TAYLORSVILLE — high-priority violation on file	Pass	State
2026-05-05	BAKELITE CHEMICALS LLC, TAYLORSVILLE — high-priority violation on file	Pass	State
2026-05-05	BAKELITE CHEMICALS LLC, TAYLORSVILLE — high-priority violation on file	Pass	State
2026-05-05	BAKELITE CHEMICALS LLC, TAYLORSVILLE — high-priority violation on file	Pass	State
2026-04-29	COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, SYLVARENA GENERATING PLA — high-priority violation on file	Pass	State
2026-04-28	COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, SYLVARENA GENERATING PLA — high-priority violation on file	Pass	State
2026-02-10	TELLUS OPERATING GROUP LLC, RALEIGH CO2 PLANT	Pass	State
2026-01-15	LEAF RIVER ENERGY CENTER LLC, LEAF RIVER ENERGY CENTER	Pass	State
2026-01-15	LEAF RIVER ENERGY CENTER LLC, LEAF RIVER ENERGY CENTER	Pass	State
2026-01-15	LEAF RIVER ENERGY CENTER LLC, LEAF RIVER ENERGY CENTER	Pass	State
2026-01-15	LEAF RIVER ENERGY CENTER LLC, LEAF RIVER ENERGY CENTER	Pass	State
2026-01-14	LEAF RIVER ENERGY CENTER LLC, LEAF RIVER ENERGY CENTER	Pass	State
2026-01-14	LEAF RIVER ENERGY CENTER LLC, LEAF RIVER ENERGY CENTER	Pass	State
2026-01-14	LEAF RIVER ENERGY CENTER LLC, LEAF RIVER ENERGY CENTER	Pass	State
2026-01-14	LEAF RIVER ENERGY CENTER LLC, LEAF RIVER ENERGY CENTER	Pass	State
2026-01-13	LEAF RIVER ENERGY CENTER LLC, LEAF RIVER ENERGY CENTER	Pass	State
2026-01-13	LEAF RIVER ENERGY CENTER LLC, LEAF RIVER ENERGY CENTER	Pass	State
2026-01-13	LEAF RIVER ENERGY CENTER LLC, LEAF RIVER ENERGY CENTER	Pass	State
2026-01-13	LEAF RIVER ENERGY CENTER LLC, LEAF RIVER ENERGY CENTER	Pass	State

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