MATHESON TRI-GAS WAXAHACHIE

NPDES ID: TX0118745

S — SNC: Compliance schedule violation

The facility missed a deadline in its compliance schedule by more than 90 days.

Violations

September 30, 2025

Sulfate

4% over limit

Discharged 692 mg/L against a permitted limit of 667 mg/L (DAILY AV)

DMR, Limited - Numeric Violation

August 31, 2025

Sulfate

9% over limit

Discharged 729 mg/L against a permitted limit of 667 mg/L (DAILY AV)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (3 months ago)

Last confirmed

August 1, 2026 (5 days ago)