# Harris County MUD 221 WWTP: 640-gallon sewage overflow (equipment failure) in Harris County, TX

**Score:** 45/100

| Field | Value |
|---|---|
| Utility / system | Harris County MUD 221 WWTP |
| System type | Treatment plant (WWTP) |
| TCEQ RN | RN102944360 |
| Permits | STORMWATER-PERMIT-TXR05U079; WASTEWATER-PERMIT-WQ0012470001 |
| Volume | 640 gallons |
| Cause | EQUIPMENT FAILURE |
| Source | Texas Commission on Environmental Quality (TCEQ) Sanitary Sewer Overflows (data.texas.gov) |
| Receiving water | Storm Inlet |
| County | Harris |
| TCEQ region | Houston |
| Dates | 2026-05-15 |
| Reported | 2026-05-15 |
| Incident number | 457941 |

## Why this score
- Equipment failure: a fixable infrastructure cause.
- Reached Storm Inlet.

Source: Texas Commission on Environmental Quality (TCEQ) Sanitary Sewer Overflows (data.texas.gov) (https://data.texas.gov/d/8kc5-95uk). Last refreshed: 2026-10-28T20:50:27.175Z.
From TCEQ Sanitary Sewer Overflow reports, which TCEQ publishes in monthly batches (recent weeks may not appear yet). Volumes are as reported by the utility and are often estimates. Utility/system level only. Verify with TCEQ.