Velarion Records

EPA Air · stack tests by county and year

Air-emissions stack tests in Butler County, Iowa, 2022

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 Butler County, Iowa during 2022. 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 Butler County facility page.

Air-emissions stack tests in Butler County, other years

Air-emissions stack tests recorded in Butler County, Iowa, 2022

DateFacilityKindAgency
2022-08-05POET BIOREFINING - SHELL ROCK, LLC — high-priority violation on filePassState
2022-08-04POET BIOREFINING - SHELL ROCK, LLC — high-priority violation on filePassState
2022-08-03POET BIOREFINING - SHELL ROCK, LLC — high-priority violation on filePassState
2022-06-16POET BIOREFINING - SHELL ROCK, LLC — high-priority violation on filePassState
2022-04-06TRINITYRAIL MAINTENANCE SERVICESPassState

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 Butler county, IA, for 2022. Stack tests recorded in 2022: 5.