# COLONA - GREEN ROCK REGIONAL STP, COLONA IL: EPA ECHO compliance status: Violation Identified

**Remediation Urgency Score:** 53/100

| Field | Value |
|---|---|
| Facility | COLONA - GREEN ROCK REGIONAL STP |
| EPA Registry ID | 110000731851 |
| Address | 4356 POPPY GARDEN ROAD, COLONA, IL, 61241 |
| County | HENRY |
| SIC | 4952: Sewerage Systems |
| Overall compliance status | Violation Identified |
| Significant noncomplier | No |
| Quarters in noncompliance (last 12) | 12 |
| Clean Water Act | Violation Identified |
| Formal enforcement actions (5 years) | 1 |
| Total penalties | $0 |
| Inspections (5 years) | 0 |
| Last inspection | 2020-03-11 |
| Watershed | Green |

## Why this score
- 12 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=110000731851). 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.