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.