# CITY OF ARCATA WASTEWATER TREATMENT FACILITY, ARCATA CA: EPA ECHO compliance status: Significant Violation

**Remediation Urgency Score:** 88/100

| Field | Value |
|---|---|
| Facility | CITY OF ARCATA WASTEWATER TREATMENT FACILITY |
| EPA Registry ID | 110037254752 |
| Address | 600 SOUTH G ST, ARCATA, CA, 95521 |
| County | HUMBOLDT |
| Industry (NAICS) | 22132 |
| SIC | 2431: Millwork, 2493: Reconstituted Wood Products, 4952: Sewerage Systems |
| Overall compliance status | Significant Violation |
| Significant noncomplier | Yes |
| Quarters in noncompliance (last 12) | 12 |
| Clean Water Act | Compliance/Permit Schedule - Violations |
| RCRA | No Violation Identified |
| Formal enforcement actions (5 years) | 3 |
| Total penalties | $48,000 |
| Last penalty | 01/23/2023 |
| Inspections (5 years) | 3 |
| Last inspection | 2026-04-02 |
| Watershed | Mad-Redwood |

## Why this score
- Flagged as a significant noncomplier, the highest EPA priority tier.
- 12 of the last 12 quarters in noncompliance.
- Current violation under CWA.
- 3 formal enforcement action(s) in 5 years.
- $48,000 in penalties.
- Inspected within the last year (2026-04-02).

Source: U.S. EPA ECHO (Enforcement and Compliance History Online) (https://echo.epa.gov/detailed-facility-report?fid=110037254752). 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.