EPA-regulated facilities in Marion County, IA
There are 194 EPA-regulated facilities inside Marion County, Iowa. The most common kinds are hazardous waste (103), air emissions (65), water discharge (57). 3 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 10 have a violation on record. Penalties over the last five years total $109k across 1 site.
By category
| Category | Facilities |
|---|---|
| Hazardous waste | 103 |
| Large quantity generators | 5 |
| Small quantity generators | 52 |
| Chemical (RMP/TRI) | 11 |
| Superfund | 1 |
| Air emissions | 65 |
| Major sources | 9 |
| Synthetic minor sources | 21 |
| Minor sources | 26 |
| Water discharge | 57 |
| Major permits | 2 |
| Minor permits | 18 |
| Drinking water systems | 12 |
| Greenhouse gas reporters | 3 |
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.
- KNOXVILLE CITY OF STP Significant noncompliance
- PARK HILLS WASTEWATER FACILITY Significant noncompliance
- PELLA CORPORATION - PELLA DIVISION Significant noncompliance
Largest penalties
Penalties assessed over the last five years.
- WEILER PRODUCTS $109k in penalties
Superfund sites
Towns in Marion County
Bordering counties
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.