MONT BELVIEU COMPLEX
NPDES ID: TX0002887
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: 1 effluent violation.
Violations
May 31, 2026
Carbon, tot organic [TOC]
1713% over limit
Discharged 1360 mg/L against a permitted limit of 75 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
Carbon, tot organic [TOC]
181% over limit
Discharged 211 mg/L against a permitted limit of 75 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Carbon, tot organic [TOC]
15% over limit
Discharged 86.1 mg/L against a permitted limit of 75 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Carbon, tot organic [TOC]
6% over limit
Discharged 79.8 mg/L against a permitted limit of 75 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2025
Flow [dry weather]
26% over limit
Discharged 0.37 MGD against a permitted limit of 0.293 MGD (DAILY AV)
DMR, Limited - Numeric Violation
August 31, 2024
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.1395 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.1404 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.0073 MGD against a permitted limit of 0 MGD (DAILY AV)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.0073 MGD against a permitted limit of 0 MGD (DAILY AV)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.4081 MGD against a permitted limit of 0 MGD (DAILY AV)
DMR, Monitor Only - Overdue
Flow [dry weather]
0% over limit
Discharged 0.0879 MGD against a permitted limit of 0.293 MGD (DAILY AV)
DMR, Limited - Overdue
pH
0% over limit
Discharged 8.7 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.2698 MGD against a permitted limit of 0 MGD (DAILY AV)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.7381 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 16, 2026 (18 hours ago)