EQUISTAR CHEMICALS LA PORTE COMPLEX
NPDES ID: TX0119792
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
This quarter: 1 effluent violation, 3 reporting violations.
Violations
June 30, 2026
Copper, total [as Cu]
16% over limit
Discharged 0.0121 mg/L against a permitted limit of 0.0104 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
May 31, 2026
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0001 mg/L (DAILY MX)
DMR, Limited - Overdue
April 30, 2026
Chlorine, free available
0% over limit
Discharged 0 mg/L against a permitted limit of 0.2 mg/L (DAILY AV)
DMR, Limited - Overdue
Chlorine, free available
0% over limit
Discharged 0 mg/L against a permitted limit of 0.5 mg/L (DAILY MX)
DMR, Limited - Overdue
February 28, 2026
Solids, total suspended
8% over limit
Discharged 232 mg/L against a permitted limit of 214 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Copper, total [as Cu]
2% over limit
Discharged 0.0106 mg/L against a permitted limit of 0.0104 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (6 days ago)