EPA-regulated facilities in Butler County, IA
There are 134 EPA-regulated facilities inside Butler County, Iowa. The most common kinds are hazardous waste (60), water discharge (47), air emissions (30). 1 is currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 8 have a violation on record. Penalties over the last five years total $22k across 2 sites.
By category
| Category | Facilities |
|---|---|
| Hazardous waste | 60 |
| Treatment, storage or disposal | 1 |
| Large quantity generators | 2 |
| Small quantity generators | 23 |
| Chemical (RMP/TRI) | 10 |
| Air emissions | 30 |
| Major sources | 3 |
| Synthetic minor sources | 13 |
| Minor sources | 13 |
| Water discharge | 47 |
| Minor permits | 13 |
| Drinking water systems | 18 |
| Greenhouse gas reporters | 2 |
| Scrap yards | 1 |
A facility enrolled in several programs counts once in the total and once in each of its categories.
In significant noncompliance
The EPA's designation for its most serious or persistent violations, as of the latest data.
- POET BIOREFINING - SHELL ROCK ETHANOL Significant noncompliance · $10k in penalties
Largest penalties
Penalties assessed over the last five years.
- UNVERFERTH MANUFACTURING COMPANY, INC $12k in penalties
Bordering counties
- Black Hawk County
- Bremer County
- Cerro Gordo County
- Chickasaw County
- Floyd County
- Franklin County
- Grundy County
- Hardin County
Reading these numbers
These are regulatory records, not measurements of pollution. Most facilities appear because they hold a permit or file reports, and most of them are compliant; a listing is not a claim that a facility has polluted anything. Compliance status and penalties are the EPA's own determinations in data retrieved Oct 9, 2026. The Data page explains where each record comes from and how it can mislead.