EPA Air · stack tests by county and year
Air-emissions stack tests in Linn County, Iowa, 2025
- 45Stack 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 Linn 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 Linn County facility page.
Linn County, Iowa, 2025
Air-emissions stack tests in Linn County, other years
Air-emissions stack tests recorded in Linn County, Iowa, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-12 | DANISCO US, INC. — high-priority violation on file | Fail | Local |
| 2025-11-13 | CARGILL INC-CORN MILLING | Pass | Local |
| 2025-11-13 | CARGILL INC-CORN MILLING | Pass | Local |
| 2025-09-24 | INGREDION INCORPORATED | Pass | Local |
| 2025-09-17 | PMX INDUSTRIES,INC. | Pass | Local |
| 2025-09-10 | CITY OF CEDAR RAPIDS WPCF | Pass | Local |
| 2025-09-10 | CITY OF CEDAR RAPIDS WPCF | Pass | Local |
| 2025-09-10 | CITY OF CEDAR RAPIDS WPCF | Pass | Local |
| 2025-09-10 | CITY OF CEDAR RAPIDS WPCF | Pass | Local |
| 2025-09-10 | CITY OF CEDAR RAPIDS WPCF | Pass | Local |
| 2025-08-22 | CEDAR RAPIDS/LINN COUNTY SWA SITE 2 | Pass | Local |
| 2025-08-19 | ADM CORN PROCESSING | Pass | Local |
| 2025-06-30 | VANTAGE CORN PROCESSORS, LLC | Pass | Local |
| 2025-06-30 | VANTAGE CORN PROCESSORS, LLC | Pass | Local |
| 2025-06-27 | VANTAGE CORN PROCESSORS, LLC | Pass | Local |
| 2025-06-27 | VANTAGE CORN PROCESSORS, LLC | Pass | Local |
| 2025-06-26 | VANTAGE CORN PROCESSORS, LLC | Pass | Local |
| 2025-06-26 | VANTAGE CORN PROCESSORS, LLC | Pass | Local |
| 2025-06-25 | VANTAGE CORN PROCESSORS, LLC | Pass | Local |
| 2025-06-24 | VANTAGE CORN PROCESSORS, LLC | Pass | Local |
| 2025-06-24 | VANTAGE CORN PROCESSORS, LLC | Pass | Local |
| 2025-06-24 | VANTAGE CORN PROCESSORS, LLC | Pass | Local |
| 2025-06-13 | DANISCO US, INC. — high-priority violation on file | Pass | Local |
| 2025-05-12 | PMX INDUSTRIES,INC. | Pass | Local |
| 2025-04-29 | DIAMOND V MILLS, INC. SOUTH PLANT | Pass | Local |
| 2025-04-29 | DIAMOND V MILLS, INC. SOUTH PLANT | Pass | Local |
| 2025-04-29 | DIAMOND V MILLS, INC. SOUTH PLANT | Pass | Local |
| 2025-04-29 | DIAMOND V MILLS, INC. SOUTH PLANT | Pass | Local |
| 2025-04-29 | DIAMOND V MILLS, INC. SOUTH PLANT | Pass | Local |
| 2025-04-24 | INGREDION INCORPORATED | Pass | Local |
| 2025-04-24 | INGREDION INCORPORATED | Fail | Local |
| 2025-04-23 | INGREDION INCORPORATED | Pass | Local |
| 2025-04-23 | DIAMOND V MILLS, INC. SOUTH PLANT | Fail | Local |
| 2025-04-22 | INGREDION INCORPORATED | Pass | Local |
| 2025-03-20 | CEDAR RAPIDS WATER DEPARTMENT-NORTHWEST TREATMENT PLANT | Pass | Local |
| 2025-03-19 | CITY OF CEDAR RAPIDS WPCF | Pass | Local |
| 2025-03-19 | CITY OF CEDAR RAPIDS WPCF | Pass | Local |
| 2025-03-18 | CITY OF CEDAR RAPIDS WPCF | Pass | Local |
| 2025-03-18 | CITY OF CEDAR RAPIDS WPCF | Pass | Local |
| 2025-03-18 | ADM CORN PROCESSING | Pass | Local |
| 2025-03-04 | INGREDION INCORPORATED | Pass | Local |
| 2025-03-04 | INGREDION INCORPORATED | Fail | Local |
| 2025-03-04 | MERCY MEDICAL CENTER | Pass | Local |
| 2025-01-16 | IPL-PRAIRIE CREEK STATION | Pass | Local |
| 2025-01-15 | IPL-PRAIRIE CREEK STATION | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.