EPA Air · stack tests by county and year

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

58Stack 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 Lowndes 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 Lowndes County facility page.

Lowndes County, Mississippi, 2025

Air-emissions stack tests in Lowndes County, other years

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

Date	Facility	Kind	Agency
2025-12-05	ALUMINUM DYNAMICS, LLC	Pass	State
2025-12-05	ALUMINUM DYNAMICS, LLC	Pass	State
2025-12-05	ALUMINUM DYNAMICS, LLC	Pass	State
2025-12-05	ALUMINUM DYNAMICS, LLC	Pass	State
2025-12-05	ALUMINUM DYNAMICS, LLC	Pass	State
2025-12-05	ALUMINUM DYNAMICS, LLC	Pass	State
2025-12-05	ALUMINUM DYNAMICS, LLC	Pass	State
2025-12-05	ALUMINUM DYNAMICS, LLC	Pass	State
2025-10-27	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-08-28	ALUMINUM DYNAMICS, LLC	Pass	State
2025-08-28	ALUMINUM DYNAMICS, LLC	Pass	State
2025-08-28	ALUMINUM DYNAMICS, LLC	Pass	State
2025-08-28	ALUMINUM DYNAMICS, LLC	Pass	State
2025-08-28	ALUMINUM DYNAMICS, LLC	Pass	State
2025-08-28	ALUMINUM DYNAMICS, LLC	Pass	State
2025-08-28	ALUMINUM DYNAMICS, LLC	Pass	State
2025-08-28	ALUMINUM DYNAMICS, LLC	Pass	State
2025-07-21	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-06-26	ALUMINUM DYNAMICS, LLC	Fail	State
2025-06-26	ALUMINUM DYNAMICS, LLC	Pass	State
2025-06-26	ALUMINUM DYNAMICS, LLC	Pass	State
2025-06-26	ALUMINUM DYNAMICS, LLC	Fail	State
2025-06-26	ALUMINUM DYNAMICS, LLC	Fail	State
2025-06-26	ALUMINUM DYNAMICS, LLC	Pass	State
2025-06-26	ALUMINUM DYNAMICS, LLC	Pass	State
2025-06-26	ALUMINUM DYNAMICS, LLC	Pass	State
2025-06-04	CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY	Pass	State
2025-06-04	CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY	Pass	State
2025-06-04	CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY	Pass	State
2025-06-03	CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY	Pass	State
2025-06-03	CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY	Pass	State
2025-06-03	CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY	Pass	State
2025-06-03	CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY	Pass	State
2025-06-03	CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY	Pass	State
2025-06-03	CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY	Pass	State
2025-05-23	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-23	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-23	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-23	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-23	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-21	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-21	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-21	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-21	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-21	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-21	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-20	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-20	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-20	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-20	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-20	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-20	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-20	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-20	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-05-20	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-04-28	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-03-24	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	Pass	State
2025-03-24	GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file	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 Lowndes county, MS, in 2025. It lists 58 stack tests recorded in 2025.