EPA Air · stack tests by state and year

Air-emissions stack tests in Alaska, 2026

45Stack 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 Alaska 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 Alaska, 2026

Alaska, other years

Air-emissions stack tests recorded in Alaska, 2026

Date	Facility	Where	Kind	Agency
2026-06-25	PETRO STAR, INC. / PORT OF ALASKA TERMINAL (FORMERLY ANCHO	ANCHORAGE, Anchorage Municipality, AK	Pass	State
2026-06-23	PETRO STAR, INC. / PETRO STAR VALDEZ REFINERY — high-priority violation on file	VALDEZ, Valdez-Cordova (CA), AK	Pass	State
2026-06-23	PETRO STAR, INC. / PETRO STAR VALDEZ REFINERY — high-priority violation on file	VALDEZ, Valdez-Cordova (CA), AK	Pass	State
2026-06-22	PETRO STAR, INC. / PETRO STAR VALDEZ REFINERY — high-priority violation on file	VALDEZ, Valdez-Cordova (CA), AK	Pass	State
2026-06-22	PETRO STAR, INC. / PETRO STAR VALDEZ REFINERY — high-priority violation on file	VALDEZ, Valdez-Cordova (CA), AK	Pass	State
2026-06-22	COLASKA, INC. DBA UNIVERSITY REDI-MIX / SOUTHSIDE PIT ASPHALT PLANT, NORTH POLE	ALASKA, Undetermined, AK	Pass	State
2026-06-19	TESORO LOGISTICS OPERATIONS, LLC / NIKISKI TERMINAL	KENAI, Kenai Peninsula, AK	Pass	State
2026-06-18	TESORO ALASKA COMPANY, LLC / KENAI REFINERY — high-priority violation on file	KENAI, Kenai Peninsula, AK	Pass	State
2026-06-17	TESORO ALASKA COMPANY, LLC / KENAI REFINERY — high-priority violation on file	KENAI, Kenai Peninsula, AK	Pass	State
2026-06-17	TESORO ALASKA COMPANY, LLC / KENAI REFINERY — high-priority violation on file	KENAI, Kenai Peninsula, AK	Pass	State
2026-06-16	TESORO ALASKA COMPANY, LLC / KENAI REFINERY — high-priority violation on file	KENAI, Kenai Peninsula, AK	Pass	State
2026-06-16	TESORO ALASKA COMPANY, LLC / KENAI REFINERY — high-priority violation on file	KENAI, Kenai Peninsula, AK	Pass	State
2026-06-16	TESORO ALASKA COMPANY, LLC / KENAI REFINERY — high-priority violation on file	KENAI, Kenai Peninsula, AK	Pass	State
2026-05-29	DOYON UTILITIES, LLC / DU-JBER-ELECTRIC, GAS, DRINKING WATER A	ANCHORAGE, Anchorage Municipality, AK	Pass	State
2026-05-29	HILCORP ALASKA, LLC / BEAVER CREEK PRODUCTION FACILITY	KENAI, Kenai Peninsula, AK	Pass	State
2026-05-20	DOYON UTILITIES, LLC / DU-JBER-ELECTRIC, GAS, DRINKING WATER A	ANCHORAGE, Anchorage Municipality, AK	Pass	State
2026-05-18	ALASKA VILLAGE ELECTRIC COOPERATIVE / BETHEL POWER PLANT	BETHEL, Bethel (CA), AK	Pass	State
2026-05-18	ALASKA VILLAGE ELECTRIC COOPERATIVE / BETHEL POWER PLANT	BETHEL, Bethel (CA), AK	Pass	State
2026-05-13	FAIRBANKS NORTH STAR BOROUGH/DEPARTMEN / FNSB SOLID WASTE FACILITY	FAIRBANKS, Fairbanks North Star, AK	N/A	State
2026-05-05	GOLDEN VALLEY ELECTRIC ASSOCIATION / HEALY POWER PLANT — high-priority violation on file	HEALY, Denali, AK	Pass	State
2026-05-04	HILCORP ALASKA, LLC / OOOGURUK DEVELOPMENT PROJECT	NORTH SLOPE BOROUGH, North Slope, AK	Pass	State
2026-05-01	HILCORP ALASKA, LLC / TYONEK PLATFORM	KENAI, Kenai Peninsula, AK	Pending	State
2026-04-29	HILCORP ALASKA, LLC / STEELHEAD PLATFORM	KENAI, Kenai Peninsula, AK	Pass	State
2026-04-29	TECK ALASKA, INC. (TECK) / RED DOG MINE — high-priority violation on file	KOTZEBUE, Northwest Arctic, AK	Pending	State
2026-04-29	TECK ALASKA, INC. (TECK) / RED DOG MINE — high-priority violation on file	KOTZEBUE, Northwest Arctic, AK	N/A	State
2026-04-29	TECK ALASKA, INC. (TECK) / RED DOG MINE — high-priority violation on file	KOTZEBUE, Northwest Arctic, AK	Pending	State
2026-04-29	TECK ALASKA, INC. (TECK) / DMTS PORT FACILITY — high-priority violation on file	KOTZEBUE, Northwest Arctic, AK	Pending	State
2026-04-29	TECK ALASKA, INC. (TECK) / DMTS PORT FACILITY — high-priority violation on file	KOTZEBUE, Northwest Arctic, AK	Pending	State
2026-04-08	CONOCOPHILLIPS ALASKA, INC. / ALPINE CENTRAL PROCESSING FACILITY	NORTH SLOPE BOROUGH, North Slope, AK	Pass	State
2026-04-07	CONOCOPHILLIPS ALASKA, INC. / ALPINE CENTRAL PROCESSING FACILITY	NORTH SLOPE BOROUGH, North Slope, AK	Pass	State
2026-04-06	HILCORP ALASKA, LLC / BELUGA RIVER UNIT — high-priority violation on file	KENAI, Kenai Peninsula, AK	Pass	State
2026-03-24	KETCHIKAN PUBLIC UTILITIES / BAILEY POWERHOUSE	KETCHIKAN, Ketchikan Gateway, AK	Pass	State
2026-03-12	HILCORP ALASKA, LLC / LISBURNE PRODUCTION CENTER (LPC)	NORTH SLOPE BOROUGH, North Slope, AK	Pass	State
2026-03-11	CHUGACH ELECTRIC ASSOCIATION / GEORGE SULLIVAN PLANT TWO	ANCHORAGE, Anchorage Municipality, AK	Pass	State
2026-03-11	CHUGACH ELECTRIC ASSOCIATION / GEORGE SULLIVAN PLANT TWO	ANCHORAGE, Anchorage Municipality, AK	Pass	State
2026-03-10	HILCORP ALASKA, LLC / NIKAITCHUQ DEVELOPMENT	NORTH SLOPE BOROUGH, North Slope, AK	Fail	State
2026-03-09	HILCORP ALASKA, LLC / NIKAITCHUQ DEVELOPMENT	NORTH SLOPE BOROUGH, North Slope, AK	Pass	State
2026-03-03	ALASKA PIPELINE COMPANY (ENSTAR NATURA / GUDENRATH COMPRESSOR STATION	KENAI, Kenai Peninsula, AK	Pass	State
2026-03-03	ALASKA PIPELINE COMPANY (ENSTAR NATURA / GUDENRATH COMPRESSOR STATION	KENAI, Kenai Peninsula, AK	Pass	State
2026-01-28	US AIR FORCE (EIELSON) / EIELSON AIR FORCE BASE — high-priority violation on file	FAIRBANKS, Fairbanks North Star, AK	Pass	State
2026-01-28	US AIR FORCE (EIELSON) / EIELSON AIR FORCE BASE — high-priority violation on file	FAIRBANKS, Fairbanks North Star, AK	Pass	State
2026-01-23	TDX POWER, LLC / TNSG NORTH POWER PLANT — high-priority violation on file	NORTH SLOPE BOROUGH, North Slope, AK	Pass	State
2026-01-22	HARVEST ALASKA LNG, LLC / LIQUEFIED NATURAL GAS (LNG) FACILITY PR	NORTH SLOPE BOROUGH, North Slope, AK	Pass	State
2026-01-16	GOLDEN VALLEY ELECTRIC ASSOCIATION / HEALY POWER PLANT — high-priority violation on file	HEALY, Denali, AK	Pass	State
2026-01-13	GOLDEN VALLEY ELECTRIC ASSOCIATION / HEALY POWER PLANT — high-priority violation on file	HEALY, Denali, AK	Pass	State

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