PORT ARTHUR REFINERY
NPDES ID: TX0004201
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
This quarter: 2 effluent violations.
Violations
May 31, 2026
Solids, total suspended
133% over limit
Discharged 140 mg/L against a permitted limit of 60 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
2% over limit
Discharged 61 mg/L against a permitted limit of 60 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, total suspended
57% over limit
Discharged 94 mg/L against a permitted limit of 60 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
62% over limit
Discharged 97 mg/L against a permitted limit of 60 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2025
Solids, total suspended
11% over limit
Discharged 2421.89793765 kg/d against a permitted limit of 2179.65398169 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
Solids, total suspended
5% over limit
Discharged 63 mg/L against a permitted limit of 60 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2024
Solids, total suspended
300% over limit
Discharged 240 mg/L against a permitted limit of 60 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (22 days ago)