Velarion Records

EPA Air · stack tests by county and year

Air-emissions stack tests in Black Hawk 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 Black Hawk 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 Black Hawk County facility page.

Black Hawk County, Iowa, 2025

Air-emissions stack tests in Black Hawk County, other years

Air-emissions stack tests recorded in Black Hawk County, Iowa, 2025

DateFacilityKindAgency
2025-11-06NORTHERN NATURAL GAS CO-WATERLOOPassState
2025-11-05JOHN DEERE PRODUCT ENGINEERING CENTERPassState
2025-11-04JOHN DEERE PRODUCT ENGINEERING CENTERPassState
2025-11-04JOHN DEERE PRODUCT ENGINEERING CENTERPassState
2025-09-09JOHN DEERE FOUNDRY WATERLOOPassState
2025-06-25CONAGRA GROCERY PRODUCTS INCPassState
2025-06-24CONAGRA GROCERY PRODUCTS INCPassState
2025-04-28JOHN DEERE FOUNDRY WATERLOOPassState
2025-03-25JOHN DEERE PRODUCT ENGINEERING CENTERPassState
2025-03-25JOHN DEERE PRODUCT ENGINEERING CENTERPassState
2025-03-25JOHN DEERE PRODUCT ENGINEERING CENTERPassState
2025-03-13MID AMERICAN ENERGY CO-WATERLOOPassState
2025-03-12MID AMERICAN ENERGY CO-WATERLOOPassState
2025-03-12MID AMERICAN ENERGY CO-WATERLOOPassState
2025-03-12MID AMERICAN ENERGY CO-WATERLOOPassState
2025-03-12MID AMERICAN ENERGY CO-WATERLOOPassState
2025-03-11MID AMERICAN ENERGY CO-WATERLOOPassState
2025-03-11MID AMERICAN ENERGY CO-WATERLOOPassState
2025-03-11MID AMERICAN ENERGY CO-WATERLOOPassState
2025-03-11MID AMERICAN ENERGY CO-WATERLOOPassState
2025-01-25UNIVERSITY OF NORTHERN 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 Clean Air Act facilities in the EPA air register with stack tests in Black Hawk county, IA, for 2025. It lists 21 stack tests recorded in 2025.