# City Of Mason WWTP: 1,000-gallon sewage overflow (equipment failure) in Mason County, TX

**Score:** 55/100

| Field | Value |
|---|---|
| Utility / system | City Of Mason WWTP |
| System type | Treatment plant (WWTP) |
| TCEQ RN | RN101917599 |
| Permits | WASTEWATER-PERMIT-WQ0010670001 |
| Volume | 1,000 gallons |
| Cause | EQUIPMENT FAILURE |
| Source | Texas Commission on Environmental Quality (TCEQ) Sanitary Sewer Overflows (data.texas.gov) |
| Receiving water | Colorado River Basin |
| County | Mason |
| TCEQ region | San Angelo |
| Dates | 2026-07-22 |
| Reported | 2026-07-24 |
| Incident number | 463796 |

## Why this score
- 1,000 gallons.
- Equipment failure: a fixable infrastructure cause.
- Reached Colorado River Basin.

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.