Velarion Records

EPA Air · stack tests by county and year

Air-emissions stack tests in Pima County, Arizona, 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 Pima County, Arizona 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 Pima County facility page.

Pima County, Arizona, 2022

Air-emissions stack tests in Pima County, other years

Air-emissions stack tests recorded in Pima County, Arizona, 2022

DateFacilityKindAgency
2022-11-30FREEPORT-MCMORAN SIERRITAPendingLocal
2022-11-11FREEPORT-MCMORAN SIERRITAPassLocal
2022-11-03CALPORTLAND - RILLITO CEMENT PLANTPassState
2022-08-19FREEPORT-MCMORAN SIERRITAPassLocal
2022-08-17EL PASO NATURAL GAS COMPANY- VAIL COMPRESSOR STATIONPassLocal
2022-08-16CALPORTLAND - RILLITO CEMENT PLANTPassState
2022-06-27SFPP,LP - TUCSON TERMINALPassLocal
2022-06-21TUCSON ELECTRIC POWER-IRVINGTONPassLocal
2022-05-17FREEPORT-MCMORAN SIERRITAPassLocal
2022-05-06TUCSON ELECTRIC POWER-IRVINGTONPassLocal
2022-04-26FREEPORT-MCMORAN SIERRITAPassLocal
2022-01-13CALPORTLAND - RILLITO CEMENT PLANTPassState
2022-01-13CALPORTLAND - RILLITO CEMENT PLANTPassState

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 Pima county, AZ, in 2022. It lists 13 stack tests recorded in 2022.