EAST TAWAKONI WWTF
NPDES ID: TX0101303
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.
Violations
May 31, 2026
BOD, 5-day, 20 deg. C
286% over limit
Discharged 38.6 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
300% over limit
Discharged 140 mg/L against a permitted limit of 35 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
April 30, 2026
BOD, 5-day, 20 deg. C
723% over limit
Discharged 82.3 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
334% over limit
Discharged 152 mg/L against a permitted limit of 35 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
15% over limit
Discharged 5.72039995 kg/d against a permitted limit of 4.994 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
April 30, 2025
E. coli
507% over limit
Discharged 2420 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
355% over limit
Discharged 45.46 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
129% over limit
Discharged 80.1 mg/L against a permitted limit of 35 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
E. coli
1821% over limit
Discharged 2420 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
9% over limit
Discharged 5.46116595 kg/d against a permitted limit of 4.994 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
49% over limit
Discharged 22.3 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
March 31, 2025
BOD, 5-day, 20 deg. C
50% over limit
Discharged 15.01 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
50% over limit
Discharged 15.01 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 10.94 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 1.77740999 kg/d against a permitted limit of 7.264 kg/d (DAILY AV)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 2.18419398 kg/d against a permitted limit of 4.994 kg/d (DAILY AV)
DMR, Limited - Overdue
February 28, 2025
Solids, total suspended
69% over limit
Discharged 25.3 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
E. coli
105% over limit
Discharged 816 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 9.94 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 1.13499999 kg/d against a permitted limit of 4.994 kg/d (DAILY AV)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.057 MGD against a permitted limit of 0.13 MGD (DAILY AV)
DMR, Limited - Overdue
E. coli
548% over limit
Discharged 816 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 2.95099998 kg/d against a permitted limit of 7.264 kg/d (DAILY AV)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.2 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
January 31, 2025
Solids, total suspended
24% over limit
Discharged 74.3 mg/L against a permitted limit of 60 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 1.90770798 kg/d against a permitted limit of 4.994 kg/d (DAILY AV)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
83% over limit
Discharged 18.33 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
83% over limit
Discharged 18.33 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
251% over limit
Discharged 52.6 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
7% over limit
Discharged 37.5 mg/L against a permitted limit of 35 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.0545 MGD against a permitted limit of 0.13 MGD (DAILY AV)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 5.11521796 kg/d against a permitted limit of 7.264 kg/d (DAILY AV)
DMR, Limited - Overdue
December 31, 2024
Solids, total suspended
0% over limit
Discharged 5.17060596 kg/d against a permitted limit of 7.264 kg/d (DAILY AV)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 43.7 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
64% over limit
Discharged 16.44 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
64% over limit
Discharged 16.44 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
96% over limit
Discharged 29.4 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.047 MGD against a permitted limit of 0.13 MGD (DAILY AV)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 43.7 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 2.60051198 kg/d against a permitted limit of 4.994 kg/d (DAILY AV)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.216 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
November 30, 2024
Solids, total suspended
0% over limit
Discharged 2.79845598 kg/d against a permitted limit of 7.264 kg/d (DAILY AV)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 1.21581199 kg/d against a permitted limit of 4.994 kg/d (DAILY AV)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.028 MGD against a permitted limit of 0.13 MGD (DAILY AV)
DMR, Limited - Overdue
Solids, total suspended
80% over limit
Discharged 26.93 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Overdue
Solids, total suspended
80% over limit
Discharged 26.93 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
18% over limit
Discharged 11.8 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
October 31, 2024
Solids, total suspended
0% over limit
Discharged 2.51288998 kg/d against a permitted limit of 7.264 kg/d (DAILY AV)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 6.43 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 7.75 mg/L against a permitted limit of 35 mg/L (SINGGRAB)
DMR, Limited - Overdue
Solids, total suspended
70% over limit
Discharged 25.48 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Overdue
Solids, total suspended
70% over limit
Discharged 25.48 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0.62334199 kg/d against a permitted limit of 4.994 kg/d (DAILY AV)
DMR, Limited - Overdue
September 30, 2024
Solids, total suspended
49% over limit
Discharged 22.38 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Overdue
Solids, total suspended
49% over limit
Discharged 22.38 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 5.88 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 7.87 mg/L against a permitted limit of 35 mg/L (SINGGRAB)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0.61426199 kg/d against a permitted limit of 4.994 kg/d (DAILY AV)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 2.36488598 kg/d against a permitted limit of 7.264 kg/d (DAILY AV)
DMR, Limited - Overdue
August 31, 2024
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.027 MGD against a permitted limit of 0.13 MGD (DAILY AV)
DMR, Limited - Overdue
Oxygen, dissolved [DO]
58% over limit
Discharged 1.7 mg/L against a permitted limit of 4 mg/L (MO MIN)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 2.90015198 kg/d against a permitted limit of 7.264 kg/d (DAILY AV)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 2.53 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.04 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0.538444 kg/d against a permitted limit of 4.994 kg/d (DAILY AV)
DMR, Limited - Overdue
Solids, total suspended
86% over limit
Discharged 27.85 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Overdue
Solids, total suspended
86% over limit
Discharged 27.85 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Overdue
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 16, 2026 (6 hours ago)