EPA Air · stack tests by county and year

Air-emissions stack tests in Guthrie County, Iowa, 2020

11Stack tests

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 Guthrie County, Iowa during 2020. 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 Guthrie County facility page.

Air-emissions stack tests in Guthrie County, other years

Air-emissions stack tests recorded in Guthrie County, Iowa, 2020

Date	Facility	Kind	Agency
2020-12-10	POET BIOREFINING - COON RAPIDS, LLC	Pass	State
2020-12-08	POET BIOREFINING - COON RAPIDS, LLC	Pass	State
2020-11-17	NORTHERN NATURAL GAS CO-GUTHRE CENTER	Pass	State
2020-06-17	POET BIOREFINING - MENLO, LLC	Pass	State
2020-04-14	POET BIOREFINING - MENLO, LLC	Pass	State
2020-03-12	POET BIOREFINING - COON RAPIDS, LLC	Pass	State
2020-03-11	POET BIOREFINING - COON RAPIDS, LLC	Pass	State
2020-03-10	POET BIOREFINING - COON RAPIDS, LLC	Pass	State
2020-01-16	POET BIOREFINING - MENLO, LLC	Pass	State
2020-01-15	POET BIOREFINING - MENLO, LLC	Pending	U.S. EPA
2020-01-15	POET BIOREFINING - MENLO, LLC	Pass	State

Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.