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: 3 effluent violations, 6 reporting violations.
Violations
June 30, 2026
pH
0% over limit
Discharged 11.1 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
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
LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina
0% over limit
Discharged 0 % against a permitted limit of 0 % (MO AV MN)
DMR, Monitor Only - Overdue
LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina
0% over limit
Discharged 0 % against a permitted limit of 0 % (7 DA MIN)
DMR, Monitor Only - Overdue
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina
0% over limit
Discharged 0 % against a permitted limit of 0 % (7 DA MIN)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (4 days ago)