EPA Air · stack tests by state and year

Air-emissions stack tests in North Carolina, 2026

188Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in North Carolina during 2026; one facility can appear more than once, because this is a record of what happened rather than a list of places.

Counties in North Carolina, 2026

North Carolina, other years

Air-emissions stack tests recorded in North Carolina, 2026

Date	Facility	Where	Kind	Agency
2026-04-07	GREENVILLE WATER TREATMENT PLANT	GREENVILLE, Pitt, NC	Pass	State
2026-04-03	MP DURHAM, LLC (LANDFILL GAS-TO-ENERGY PROJECT)	DURHAM, Durham, NC	Pending	State
2026-04-02	CERTAINTEED LLC - OXFORD FACILITY	OXFORD, Granville, NC	Pass	State
2026-04-02	ENVIVA HAMLET	HAMLET, Richmond, NC	Pending	State
2026-03-31	STERICYCLE, INC.	HAW RIVER, Alamance, NC	Pass	State
2026-03-31	CITY OF GREENSBORO - T.Z. OSBORNE WATER RECLAMATION FACILITY — high-priority violation on file	MCLEANSVILLE, Guilford, NC	Pending	State
2026-03-30	MARTIN MARIETTA MATERIALS, INC. - ASHEBORO QUARRY	ASHEBORO, Randolph, NC	Pass	State
2026-03-25	PRYSMIAN CABLES AND SYSTEMS USA, LLC — high-priority violation on file	CLAREMONT, Catawba, NC	Pass	State
2026-03-25	PRYSMIAN CABLES AND SYSTEMS USA, LLC — high-priority violation on file	CLAREMONT, Catawba, NC	Pass	State
2026-03-19	SAINT-GOBAIN ADFORS AMERICA, INC.	LEXINGTON, Davidson, NC	Pass	State
2026-03-19	DUKE ENERGY CORPORATION LCTS	STANLEY, Lincoln, NC	Pass	State
2026-03-18	TOPPAN PACKAGING USA (HICKORY) INC.	HICKORY, Catawba, NC	Pass	State
2026-03-17	TRANSCONTINENTAL GAS PIPE LINE COMPANY, LLC - STATION 150	MOORESVILLE, Iredell, NC	Pending	State
2026-03-17	DUKE ENERGY CORPORATION LCTS	STANLEY, Lincoln, NC	Pass	State
2026-03-17	PRESTAGE AGENERGY - MOLTONVILLE	CLINTON, Sampson, NC	Pending	State
2026-03-12	CHEMOURS COMPANY - FAYETTEVILLE WORKS	FAYETTEVILLE, Bladen, NC	Pending	State
2026-03-11	CHEMOURS COMPANY - FAYETTEVILLE WORKS	FAYETTEVILLE, Bladen, NC	Pending	State
2026-03-11	TOYOTA BATTERY MFG. INC. DBA TOYOTA BATTERY MANUFACTURING NC	LIBERTY, Randolph, NC	Pass	State
2026-03-11	HEIDELBERG MATERIALS SOUTHEAST AGG LLC - NEVERSON QUARRY	SIMS, Wilson, NC	Pass	State
2026-03-10	MARTIN MARIETTA MATERIALS, INC. - STATESVILLE QUARRY	STATESVILLE, Iredell, NC	Pass	State
2026-03-09	BWI ETN LLC - NORTH WILKESBORO QUARRY	NORTH WILKESBORO, Wilkes, NC	Pass	State
2026-03-06	GCF US HOLDINGS LLC - NEW BERN MILL	VANCEBORO, Craven, NC	Pass	State
2026-03-04	AMES COPPER GROUP - SHELBY	SHELBY, Cleveland, NC	Pending	State
2026-03-03	GCF US HOLDINGS LLC - NEW BERN MILL	VANCEBORO, Craven, NC	Pass	State
2026-03-03	DUKE ENERGY CORPORATION LCTS	STANLEY, Lincoln, NC	Pass	State
2026-03-03	SUNROCK INDUSTRIES LLC - RDU DISTRIBUTION CENTER	RALEIGH, Wake, NC	Pass	State
2026-03-02	PUBLIC WORKS COMMISSION BUTLER-WARNER GENERATION PLANT	FAYETTEVILLE, Cumberland, NC	Pending	State
2026-02-28	DUKE ENERGY CAROLINAS, LLC - BELEWS CREEK STEAM STATION	BELEWS CREEK, Stokes, NC	Pass	State
2026-02-26	TREE BRAND PACKAGING - NEWTON FACILITY (ACI)	NEWTON, Catawba, NC	Pass	State
2026-02-26	DUKE ENERGY CORPORATION LCTS	STANLEY, Lincoln, NC	Pass	State
2026-02-25	PCS PHOSPHATE COMPANY, INC. - AURORA	AURORA, Beaufort, NC	Pending	State
2026-02-25	CITY OF HIGH POINT - EASTSIDE WASTEWATER TREATMENT PLANT	JAMESTOWN, Guilford, NC	Pass	State
2026-02-24	DUKE ENERGY CORPORATION LCTS	STANLEY, Lincoln, NC	Pass	State
2026-02-24	MCIEAST-MARINE CORPS BASE CAMP LEJEUNE	CAMP LEJEUNE (ONSLOW,NC), Onslow, NC	Pass	State
2026-02-20	DUKE ENERGY CORPORATION LCTS	STANLEY, Lincoln, NC	Pass	State
2026-02-20	TROY LUMBER COMPANY	TROY, Montgomery, NC	Pending	State
2026-02-20	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-02-20	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-02-19	DUKE ENERGY CAROLINAS, LLC - MARSHALL STEAM STATION	TERRELL, Catawba, NC	Pending	State
2026-02-19	AMERICAN WOOD FIBERS - LAURINBURG — high-priority violation on file	LAURINBURG, Scotland, NC	Pending	State
2026-02-19	WAYNE COUNTY MUNICIPAL SOLID WASTE LANDFILL	DUDLEY, Wayne, NC	Pass	State
2026-02-19	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-02-18	DUKE ENERGY CAROLINAS, LLC - MARSHALL STEAM STATION	TERRELL, Catawba, NC	Pending	State
2026-02-18	DUKE ENERGY CORPORATION LCTS	STANLEY, Lincoln, NC	Pass	State
2026-02-18	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-02-18	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-02-17	DUKE ENERGY CAROLINAS, LLC - MARSHALL STEAM STATION	TERRELL, Catawba, NC	Pending	State
2026-02-17	DOMTAR PAPER COMPANY, LLC	PLYMOUTH, Martin, NC	Pass	State
2026-02-17	GREDE II - BISCOE, LLC — high-priority violation on file	BISCOE, Montgomery, NC	Pending	State
2026-02-17	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-02-13	DUKE ENERGY CORPORATION LCTS	STANLEY, Lincoln, NC	Pass	State
2026-02-13	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-02-13	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-02-12	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-02-12	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-02-12	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-02-11	RICHARD ABERNATHY GRADING AND SEPTIC, INC. - MT. ULLA SITE	MOORESVILLE, Iredell, NC	Pass	State
2026-02-11	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-02-10	TOYOTA BATTERY MFG. INC. DBA TOYOTA BATTERY MANUFACTURING NC	LIBERTY, Randolph, NC	Pass	State
2026-02-10	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-02-04	CARDINAL PIPELINE COMPANY, LLC - COMPRESSOR STATION 161	BROWNS SUMMIT, Guilford, NC	Pending	State
2026-02-04	UNIVERSAL LEAF NORTH AMERICA, INC.	NASHVILLE, Nash, NC	Pass	State
2026-01-29	B.V. HEDRICK GRAVEL AND SAND COMPANY	LILESVILLE, Anson, NC	Pending	State
2026-01-28	FIRSTHEALTH OF THE CAROLINAS - MOORE REGIONAL HOSPITAL	PINEHURST, Moore, NC	Pending	State
2026-01-23	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-01-23	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-01-22	TYSON FARMS, INC. - MONROE PROCESSING, FEED MILL, & HATCHERY	MONROE, Union, NC	Pass	State
2026-01-22	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-01-22	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-01-21	CHEMOURS COMPANY - FAYETTEVILLE WORKS	FAYETTEVILLE, Bladen, NC	Pending	State
2026-01-21	NUCOR STEEL LEXINGTON	LEXINGTON, Davidson, NC	Pending	State
2026-01-21	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-01-21	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-01-20	CLARIOS	KERNERSVILLE, Forsyth, NC	Pending	Local
2026-01-20	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-01-16	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-01-15	GRIFOLS THERAPEUTICS LLC	CLAYTON, Johnston, NC	Pass	State
2026-01-15	BIOGEN	RESEARCH TRIANGLE PARK, Wake, NC	Pass	State
2026-01-15	FIDELITY REAL ESTATE CO.- FIDELITY MORRISVILLE DATA CENTER	RESEARCH TRIANGLE PARK, Wake, NC	Pass	State
2026-01-14	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-01-14	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-01-14	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-01-13	CITY OF ROCKY MOUNT PUBLIC UTILITIES, ELECTRIC SUBSTATION 9	ROCKY MOUNT, Nash, NC	Pending	State
2026-01-13	COC SURRY LFG, LLC	MOUNT AIRY, Surry, NC	Pending	State
2026-01-13	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-01-09	ROBESON COUNTY LANDFILL	SAINT PAULS, Robeson, NC	Pending	State
2026-01-08	CITY OF GREENSBORO - T.Z. OSBORNE WATER RECLAMATION FACILITY — high-priority violation on file	MCLEANSVILLE, Guilford, NC	Fail	State
2026-01-07	DUKE ENERGY CAROLINAS, LLC - BELEWS CREEK STEAM STATION	BELEWS CREEK, Stokes, NC	Pass	State

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