MAPLE LEAF GARDENS WWTP
NPDES ID: TX0085821
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: 8 effluent violations.
Violations
June 30, 2026
Solids, total suspended
184% over limit
Discharged 7.21859994 kg/d against a permitted limit of 2.5424 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
37% over limit
Discharged 4.12 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
216% over limit
Discharged 5.31179996 kg/d against a permitted limit of 1.6798 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
50% over limit
Discharged 0.74909999 kg/d against a permitted limit of 0.4994 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
May 31, 2026
Oxygen, dissolved [DO]
20% over limit
Discharged 3.2 mg/L against a permitted limit of 4 mg/L (MO MIN)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
9% over limit
Discharged 65.3 mg/L against a permitted limit of 60 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (6 days ago)