Velarion Records

EPA Air · stack tests by county and year

Air-emissions stack tests in Johnson County, Iowa, 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 Johnson County, Iowa 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 Johnson County facility page.

Johnson County, Iowa, 2025

Air-emissions stack tests in Johnson County, other years

Air-emissions stack tests recorded in Johnson County, Iowa, 2025

DateFacilityKindAgency
2025-12-11US FOODS - CORALVILLEPassState
2025-12-11US FOODS - CORALVILLEPassState
2025-10-22ENTERPRISE NGL PIPELINE- IOWA CITY TERMINALPassState
2025-08-20UNIVERSITY OF IOWAPassState
2025-08-19LOPAREX INCPassState
2025-05-15UNIVERSITY OF IOWAPassState
2025-05-15UNIVERSITY OF IOWAPassState
2025-05-14UNIVERSITY OF IOWAPassState
2025-05-14UNIVERSITY OF IOWAPassState
2025-05-13UNIVERSITY OF IOWAPassState
2025-05-13UNIVERSITY OF IOWAPassState

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 2025 for Clean Air Act facilities in Johnson county, IA. It lists 11 stack tests recorded in 2025.