EPA-regulated facilities in Lyon County, KS
There are 452 EPA-regulated facilities inside Lyon County, Kansas. The most common kinds are water discharge (245), hazardous waste (145), air emissions (93). None is in significant noncompliance, but 11 have a violation on record. Penalties over the last five years total $5.3M across 1 site.
By category
| Category | Facilities |
|---|---|
| Hazardous waste | 145 |
| Large quantity generators | 3 |
| Small quantity generators | 70 |
| Chemical (RMP/TRI) | 10 |
| Superfund | 1 |
| Air emissions | 93 |
| Major sources | 5 |
| Synthetic minor sources | 17 |
| Minor sources | 28 |
| Water discharge | 245 |
| Major permits | 1 |
| Minor permits | 212 |
| Drinking water systems | 13 |
| Greenhouse gas reporters | 3 |
A facility enrolled in several programs counts once in the total and once in each of its categories.
Largest penalties
Penalties assessed over the last five years.
- UNITED PARCEL SERVICE INC $5.3M in penalties
Superfund sites
Towns in Lyon 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.