# CITY OF UKIAH WASTEWATER TREATMENT PLANT, UKIAH CA: EPA ECHO compliance status: Significant Violation

**Remediation Urgency Score:** 66/100

| Field | Value |
|---|---|
| Facility | CITY OF UKIAH WASTEWATER TREATMENT PLANT |
| EPA Registry ID | 110000515229 |
| Address | 300 PLANT RD., UKIAH, CA, 95482 |
| County | MENDOCINO |
| Industry (NAICS) | 22132 |
| SIC | 4952: Sewerage Systems |
| Overall compliance status | Significant Violation |
| Significant noncomplier | Yes |
| Quarters in noncompliance (last 12) | 7 |
| Clean Water Act | Compliance/Permit Schedule - Violations |
| Formal enforcement actions (5 years) | 1 |
| Total penalties | $0 |
| Last penalty | 03/07/2014 |
| Inspections (5 years) | 2 |
| Last inspection | 2025-05-29 |
| Watershed | Russian |

## Why this score
- Flagged as a significant noncomplier, the highest EPA priority tier.
- 7 of the last 12 quarters in noncompliance.
- Current violation under CWA.
- 1 formal enforcement action(s) in 5 years.

Source: U.S. EPA ECHO (Enforcement and Compliance History Online) (https://echo.epa.gov/detailed-facility-report?fid=110000515229). 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.