# US DOE ARGONNE NATIONAL LABORATORY, ARGONNE IL: EPA ECHO compliance status: Violation Identified

**Remediation Urgency Score:** 61/100

| Field | Value |
|---|---|
| Facility | US DOE ARGONNE NATIONAL LABORATORY |
| EPA Registry ID | 110041963168 |
| Address | 9700 S CASS AVE BLDG 300, ARGONNE, IL, 60439 |
| County | DU PAGE |
| Industry (NAICS) | 541712: Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) , 541713: Research and Development in Nanotechnology |
| SIC | 8731: Commercial Physical Research, 8733: Noncommercial Research Organizations |
| Overall compliance status | Violation Identified |
| Significant noncomplier | No |
| Quarters in noncompliance (last 12) | 9 |
| Clean Water Act | Violation Identified |
| Clean Air Act | No Violation Identified |
| RCRA | Violation |
| Formal enforcement actions (5 years) | 1 |
| Total penalties | $0 |
| Last penalty | 05/06/1997 |
| Inspections (5 years) | 13 |
| Last inspection | 2026-05-20 |
| Watershed | Des Plaines |

## Why this score
- 9 of the last 12 quarters in noncompliance.
- Violations under 2 statutes (CWA, RCRA): a multi-media problem.
- 1 formal enforcement action(s) in 5 years.
- Inspected within the last year (2026-05-20).

Source: U.S. EPA ECHO (Enforcement and Compliance History Online) (https://echo.epa.gov/detailed-facility-report?fid=110041963168). Last refreshed: 2026-11-03T18:05:36.266Z.
Compliance data comes from EPA ECHO and may lag state records; a violation flag is not a finding of wrongdoing. Informational only; not legal or engineering advice.