EPA Air · stack tests by county and year

Air-emissions stack tests in Dunn County, North Dakota, 2025

23Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Dunn County, North Dakota during 2025. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Dunn County facility page.

Air-emissions stack tests in Dunn County, other years

Air-emissions stack tests recorded in Dunn County, North Dakota, 2025

Date	Facility	Kind	Agency
2025-12-16	BUFFALO COMPRESSOR STATION	Pass	U.S. EPA
2025-10-28	BUFFALO COMPRESSOR STATION	Pass	U.S. EPA
2025-10-28	BUFFALO COMPRESSOR STATION	Pass	U.S. EPA
2025-10-28	BUFFALO COMPRESSOR STATION	Pass	U.S. EPA
2025-10-08	ROBERT'S TRUST COMPRESSOR STATION	Pass	U.S. EPA
2025-10-08	ROBERT'S TRUST COMPRESSOR STATION	Pass	U.S. EPA
2025-10-08	ROBERT'S TRUST COMPRESSOR STATION	Pass	U.S. EPA
2025-10-07	ROBERT'S TRUST COMPRESSOR STATION	Pass	U.S. EPA
2025-10-07	ROBERT'S TRUST COMPRESSOR STATION	Pass	U.S. EPA
2025-10-06	ROBERT'S TRUST COMPRESSOR STATION	Pass	U.S. EPA
2025-10-02	ROBERT'S TRUST COMPRESSOR STATION	Pass	U.S. EPA
2025-08-20	WBI ENERGY TRANSMISSION, INC. - MANNING COMPRESSOR STATION	N/A	State
2025-07-16	NORTHERN BORDER PIPELINE COMPANY - MANNING COMPRESSOR STATION - AQ	Pass	State
2025-05-13	ROBERT'S TRUST COMPRESSOR STATION	Pass	U.S. EPA
2025-05-07	ROBERT'S TRUST COMPRESSOR STATION	Pass	U.S. EPA
2025-05-07	ROBERT'S TRUST COMPRESSOR STATION	Fail	U.S. EPA
2025-05-06	ROBERT'S TRUST COMPRESSOR STATION	Pass	U.S. EPA
2025-05-06	ROBERT'S TRUST COMPRESSOR STATION	Pass	U.S. EPA
2025-05-06	ROBERT'S TRUST COMPRESSOR STATION	Pass	U.S. EPA
2025-05-05	ROBERT'S TRUST COMPRESSOR STATION	Pass	U.S. EPA
2025-04-24	BUFFALO COMPRESSOR STATION	Pass	U.S. EPA
2025-04-24	BUFFALO COMPRESSOR STATION	Pass	U.S. EPA
2025-04-24	BUFFALO COMPRESSOR STATION	Pass	U.S. EPA

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 Dunn county, ND, in 2025. It lists 23 stack tests recorded in 2025.