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.

What this page shows

This page covers Clean Air Act facilities in the EPA air register with stack tests in Smith county, MS, in 2026. It lists 25 stack tests recorded in 2026.