Frontier El Dorado Refining Co
1401 Douglas Rd, El Dorado, KS 67042, Butler County
A manufacturing facility in El Dorado, Kansas, listed in EPA records under petroleum refineries (NAICS 324110) and also petrochemical manufacturing. It is one of 2,156 active manufacturing facilities in EPA records in Kansas.
- Industry
- Petroleum and coal products
- NAICS 324
- TRI reporter
- Yes
- Inspections, 5 yr
- 10
- EPA registry ID
- 110000446134
- Revised
- November 1, 2026
What's made here
- Petroleum Refineries (NAICS 324110)
- Petrochemical Manufacturing (NAICS 325110)
Public EPA records
| Toxics Release Inventory | Reports to the TRI (facility ID 67042TXCRF1401S). |
|---|---|
| Clean Air Act | Listed as a major source, and also a minor source of air emissions. |
| Clean Water Act | Major and non-major water discharge permits (NPDES). |
| Hazardous waste (RCRA) | Listed as a large quantity generator of hazardous waste (1,000 kg or more a month). |
| Greenhouse gas reporting | Reports to the Greenhouse Gas Reporting Program. |
| Inspections | 10 in the last five years; most recent August 19, 2026. |
EPA ECHO, November 1, 2026; not a rating. EPA report ยท About these records