CITY OF COOLIDGE WWTF
NPDES ID: TX0057045
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: 9 effluent violations.
Violations
June 30, 2026
BOD, 5-day, 20 deg. C
23% over limit
Discharged 36.8 mg/L against a permitted limit of 30 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
38% over limit
Discharged 2.5 mg/L against a permitted limit of 4 mg/L (MO MIN)
DMR, Limited - Numeric Violation
Solids, total suspended
13% over limit
Discharged 102 mg/L against a permitted limit of 90 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
55% over limit
Discharged 17.62427985 kg/d against a permitted limit of 11.35 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
36% over limit
Discharged 46.40333961 kg/d against a permitted limit of 34.05 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
May 31, 2026
BOD, 5-day, 20 deg. C
12% over limit
Discharged 12.73923989 kg/d against a permitted limit of 11.35 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
E. coli
8% over limit
Discharged 136.39 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
April 30, 2026
E. coli
703% over limit
Discharged 1012.14 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
E. coli
226% over limit
Discharged 1300 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
March 31, 2026
E. coli
110% over limit
Discharged 264.15 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
E. coli
106% over limit
Discharged 821 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
February 28, 2026
E. coli
1113% over limit
Discharged 4840 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
E. coli
2616% over limit
Discharged 3422.4 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
January 31, 2026
E. coli
1890% over limit
Discharged 2507.9 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
41% over limit
Discharged 16.03527987 kg/d against a permitted limit of 11.35 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
12% over limit
Discharged 33.5 mg/L against a permitted limit of 30 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
E. coli
551% over limit
Discharged 2599 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
December 31, 2025
E. coli
625% over limit
Discharged 912.96 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
E. coli
507% over limit
Discharged 2420 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
November 30, 2025
BOD, 5-day, 20 deg. C
6% over limit
Discharged 12.0446199 kg/d against a permitted limit of 11.35 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
E. coli
15% over limit
Discharged 457 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 9.2 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
September 30, 2025
pH
0% over limit
Discharged 9.1 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
August 31, 2025
pH
0% over limit
Discharged 10 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
July 31, 2025
BOD, 5-day, 20 deg. C
3% over limit
Discharged 11.6632599 kg/d against a permitted limit of 11.35 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 9.2 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
June 30, 2025
E. coli
82% over limit
Discharged 727 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
May 31, 2025
E. coli
94% over limit
Discharged 243.83 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
E. coli
117% over limit
Discharged 866 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
April 30, 2025
E. coli
46% over limit
Discharged 582 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
January 31, 2025
E. coli
254% over limit
Discharged 1414 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
E. coli
582% over limit
Discharged 859.15 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
December 31, 2024
E. coli
13% over limit
Discharged 142.28 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
September 30, 2024
Oxygen, dissolved [DO]
13% over limit
Discharged 3.5 mg/L against a permitted limit of 4 mg/L (MO MIN)
DMR, Limited - Numeric Violation
August 31, 2024
pH
0% over limit
Discharged 10.1 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (12 hours ago)