Velarion Records

EPA Air · stack tests by county and year

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

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 Divide 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 Divide County facility page.

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

DateFacilityKindAgency
2025-11-20HILAND PARTNERS HOLDINGS LLC - NORSE GAS PLANTPassState
2025-08-04HILAND PARTNERS HOLDINGS LLC - NORSE GAS PLANTPassState
2025-07-01HILAND PARTNERS HOLDINGS LLC - NORSE GAS PLANTPassState

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 Divide county, ND, in 2025. Stack tests recorded in 2025: 3.