EPA Air · stack tests by state, industry and year
Utilities (NAICS 2211): stack tests in Iowa, 2026
- 27Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2026 at a Iowa source whose primary industry code is NAICS 2211. A facility filing more than one industry code is counted under the first one on its record.
Utilities (NAICS 2211) in Iowa, other years
Other industries in Iowa, 2026
- Chemical manufacturing (NAICS 3251) 58
- Food manufacturing (NAICS 3112) 15
- Publishing industries (NAICS 5112) 8
- Pipeline transportation (NAICS 4862) 8
- Primary metal manufacturing (NAICS 3311) 7
- Nonmetallic mineral product manufacturing (NAICS 3273) 5
- Chemical manufacturing (NAICS 3253) 4
- Professional, scientific and technical services (NAICS 5419) 4
- Primary metal manufacturing (NAICS 3315) 4
- Administration of environmental programs (NAICS 9241) 4
- Food manufacturing (NAICS 3111) 3
- Food manufacturing (NAICS 3116) 3
Air-emissions stack tests recorded in Iowa, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-06-11 | MIDAMERICAN ENERGY COMPANY SYCAMORE CTS | JOHNSTON, Polk, IA | Pass | Local |
| 2026-05-29 | MID AMERICAN ENERGY CO-COUNCIL BLUFFS | COUNCIL BLUFFS, Pottawattamie, IA | Pass | State |
| 2026-05-28 | MID AMERICAN ENERGY CO-COUNCIL BLUFFS | COUNCIL BLUFFS, Pottawattamie, IA | Pass | State |
| 2026-05-27 | MID AMERICAN ENERGY CO-COUNCIL BLUFFS | COUNCIL BLUFFS, Pottawattamie, IA | Pass | State |
| 2026-05-13 | MTBT - OTTUMWA | OTTUMWA, Wapello, IA | Pass | State |
| 2026-05-12 | LAKE PARK MUNICIPAL UTILITIES | LAKE PARK, Dickinson, IA | Pass | State |
| 2026-05-12 | LAKE PARK MUNICIPAL UTILITIES | LAKE PARK, Dickinson, IA | Pass | State |
| 2026-05-08 | MAQUOKETA MUNICIPAL ELECTRIC UTILITY-N&S | MAQUOKETA (HISTORICAL), Jackson, IA | Pass | State |
| 2026-05-08 | MAQUOKETA MUNICIPAL ELECTRIC UTILITY-N&S | MAQUOKETA (HISTORICAL), Jackson, IA | Pass | State |
| 2026-05-07 | MAQUOKETA MUNICIPAL ELECTRIC UTILITY-N&S | MAQUOKETA (HISTORICAL), Jackson, IA | Pass | State |
| 2026-05-07 | MAQUOKETA MUNICIPAL ELECTRIC UTILITY-N&S | MAQUOKETA (HISTORICAL), Jackson, IA | Pass | State |
| 2026-05-06 | MAQUOKETA MUNICIPAL ELECTRIC UTILITY-N&S | MAQUOKETA (HISTORICAL), Jackson, IA | Pass | State |
| 2026-05-06 | MAQUOKETA MUNICIPAL ELECTRIC UTILITY-N&S | MAQUOKETA (HISTORICAL), Jackson, IA | Pass | State |
| 2026-05-05 | MAQUOKETA MUNICIPAL ELECTRIC UTILITY-N&S | MAQUOKETA (HISTORICAL), Jackson, IA | Pass | State |
| 2026-05-04 | MAQUOKETA MUNICIPAL ELECTRIC UTILITY-N&S | MAQUOKETA (HISTORICAL), Jackson, IA | Pass | State |
| 2026-04-29 | UNIVERSITY OF IOWA | IOWA CITY, Johnson, IA | Pass | State |
| 2026-04-21 | PANORA MUNICIPAL ELECTRIC | PANORA (HISTORICAL), Guthrie, IA | Pass | State |
| 2026-04-21 | PANORA MUNICIPAL ELECTRIC | PANORA (HISTORICAL), Guthrie, IA | Pass | State |
| 2026-04-21 | PANORA MUNICIPAL ELECTRIC | PANORA (HISTORICAL), Guthrie, IA | Pass | State |
| 2026-04-07 | SIBLEY MUNICIPAL UTILITIES | SIBLEY, Osceola, IA | Pass | State |
| 2026-04-01 | IPL � MARSHALLTOWN GENERATING STATION | MARSHALLTOWN, Marshall, IA | Pass | State |
| 2026-03-25 | SUMNER MUNICIPAL LIGHT PLANT | SUMNER (HISTORICAL), Bremer, IA | Pass | State |
| 2026-03-25 | SUMNER MUNICIPAL LIGHT PLANT | SUMNER (HISTORICAL), Bremer, IA | Pass | State |
| 2026-02-26 | UNIVERSITY OF IOWA | IOWA CITY, Johnson, IA | Pass | State |
| 2026-02-11 | IPL-LIME CREEK COMBUSTION TURBINES | MASON CITY, Cerro Gordo, IA | Pass | State |
| 2026-02-10 | IPL/ALLIANT ENERGY-OTTUMWA GEN STATION | OTTUMWA, Wapello, IA | Pass | State |
| 2026-01-20 | MTBT - MARSHALLTOWN | MARSHALLTOWN, Marshall, IA | Pass | State |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.