[Research](/research) / TxSewageOverflowPulse

# Texas Sanitary Sewer Overflows Reported to TCEQ by Utility: 2026 statistics from 1,008 public records

**The most common cause is Grease blockage: 343 of 1,008 records (34.0%) (as of 2026-10-28; source: Texas Commission on Environmental Quality (TCEQ) Sanitary Sewer Overflows (data.texas.gov)).**

Data as of 2026-10-28 · Compiled by Zalwin from Texas Commission on Environmental Quality (TCEQ) Sanitary Sewer Overflows (data.texas.gov) Copy citation

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## Key findings

- Zalwin's TxSewageOverflowPulse dataset holds 1,008 TxSewageOverflowPulse records dated 2026-05-01 to 2026-08-29 (as of 2026-10-28; source: Texas Commission on Environmental Quality (TCEQ) Sanitary Sewer Overflows (data.texas.gov)). [#](#finding-1)
- The most common cause is Grease blockage: 343 of 1,008 records (34.0%) (as of 2026-10-28; source: Texas Commission on Environmental Quality (TCEQ) Sanitary Sewer Overflows (data.texas.gov)). [#](#finding-2)
- Across 828 records with a stated gallons, the total is 14,690,153 and the median is 900; the largest is 2,660,000 (City Of Paris Wastewater Treatment Plant) (as of 2026-10-28; source: Texas Commission on Environmental Quality (TCEQ) Sanitary Sewer Overflows (data.texas.gov)). [#](#finding-3)
- The top 10% of records by gallons (83 of 828) account for 89.2% of the total (as of 2026-10-28; source: Texas Commission on Environmental Quality (TCEQ) Sanitary Sewer Overflows (data.texas.gov)). [#](#finding-4)

## TxSewageOverflowPulse records by cause

| Group | Records | Share |
|---|---|---|
| Grease blockage | 343 | 34.0% |
| Equipment failure | 196 | 19.4% |
| Inflow and infiltration (rain) | 179 | 17.8% |
| Other / unknown | 157 | 15.6% |
| Line break | 87 | 8.6% |
| Human error | 33 | 3.3% |
| Power outage | 13 | 1.3% |

## Methodology and data provenance

- Sample: 1,008 public records dated 2026-05-01 to 2026-08-29; illustrative samples excluded.

- Source: Texas Commission on Environmental Quality (TCEQ) Sanitary Sewer Overflows (data.texas.gov). Refreshed automatically about every 168 hours; figures above are as of 2026-10-28.

- Shares are of all records in the dataset; totals and medians use only records with a stated gallons.

- Organization-level data only. Informational; verify individual records at the official source.

### Cite this study

Zalwin Research, "TxSewageOverflowPulse statistics" (data as of 2026-10-28), https://zalwin.com/research/txsewageoverflowpulse

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