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.

What this page shows

This page covers Clean Air Act facilities in the EPA air register with stack tests in AK for 2026. It lists 45 stack tests recorded in 2026.