EPA Air · stack tests by state and year

Air-emissions stack tests in Oregon, 2026

27Stack 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 Oregon 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 Oregon, 2026

Oregon, other years

Air-emissions stack tests recorded in Oregon, 2026

Date	Facility	Where	Kind	Agency
2026-07-30	JASPER WOOD PRODUCTS	JASPER, Lane, OR	Pending	Local
2026-07-30	JOHNSON CRUSHERS INTERNATIONAL	EUGENE, Lane, OR	Pending	Local
2026-07-10	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-07-10	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-07-10	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-07-10	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-07-10	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-06-03	GEORGIA-PACIFIC TOLEDO LLC — high-priority violation on file	TOLEDO, Lincoln, OR	Pass	State
2026-05-23	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-05-14	FORREST PAINT CO.	EUGENE, Lane, OR	Pending	Local
2026-04-22	UNIVERSITY OF OREGON	EUGENE, Lane, OR	Pass	Local
2026-04-01	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-04-01	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-04-01	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-04-01	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-04-01	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-03-20	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-03-20	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-03-10	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-02-16	GEORGIA-PACIFIC TOLEDO LLC — high-priority violation on file	TOLEDO, Lincoln, OR	N/A	State
2026-02-04	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-02-04	UNIVERSITY OF OREGON	EUGENE, Lane, OR	Pass	Local
2026-01-29	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-01-29	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-01-29	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-01-29	GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file	CLATSKANIE, Clatsop, OR	Pass	State
2026-01-23	GEORGIA-PACIFIC TOLEDO LLC — high-priority violation on file	TOLEDO, Lincoln, OR	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 stack tests recorded in 2026 for Clean Air Act facilities in the EPA air register in OR. It lists 27 stack tests recorded in 2026.