CITY OF THORNTON WWTP
NPDES ID: TX0075639
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
This quarter: 5 effluent violations, 1 single-event violation, 1 permit schedule violation.
Violations
June 30, 2026
Solids, total suspended
57% over limit
Discharged 31.3 mg/L against a permitted limit of 20 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
10% over limit
Discharged 0.045 MGD against a permitted limit of 0.041 MGD (DAILY AV)
DMR, Limited - Numeric Violation
May 31, 2026
Solids, total suspended
64% over limit
Discharged 32.8 mg/L against a permitted limit of 20 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
26% over limit
Discharged 3.89985997 kg/d against a permitted limit of 3.0872 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
100% over limit
Discharged 40 mg/L against a permitted limit of 20 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
March 31, 2026
BOD, 5-day, 20 deg. C
8% over limit
Discharged 21.5 mg/L against a permitted limit of 20 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (5 days ago)