Velarion Records

EPA Air · stack tests by county and year

Air-emissions stack tests in Hall County, Nebraska, 2026

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 Hall County, Nebraska during 2026. 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 Hall County facility page.

Air-emissions stack tests in Hall County, other years

Air-emissions stack tests recorded in Hall County, Nebraska, 2026

DateFacilityKindAgency
2026-04-29SWIFT BEEF COMPANY — high-priority violation on fileN/AState
2026-03-23GREEN PLAINS WOOD RIVER LLC — high-priority violation on filePassState
2026-03-18GREEN PLAINS WOOD RIVER LLC — high-priority violation on fileN/AState

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 in Hall county, NE, for 2026. It lists 3 stack tests recorded in 2026.