CITY OF HUBBARD WWTF
NPDES ID: TX0053295
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: 10 effluent violations.
Violations
May 31, 2026
BOD, carbonaceous [5 day, 20 C]
90% over limit
Discharged 19 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
69% over limit
Discharged 59 mg/L against a permitted limit of 35 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
Solids, total suspended
113% over limit
Discharged 29.97761975 kg/d against a permitted limit of 14.074 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
34% over limit
Discharged 12.78917989 kg/d against a permitted limit of 9.534 kg/d (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
Solids, total suspended
125% over limit
Discharged 135 mg/L against a permitted limit of 60 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
Solids, total suspended
188% over limit
Discharged 43.25 mg/L against a permitted limit of 15 mg/L (DAILY AV)
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
Nitrogen, ammonia total [as N]
23% over limit
Discharged 3.7 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
22% over limit
Discharged 18.25 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, total suspended
43% over limit
Discharged 21.4 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
February 28, 2026
Solids, total suspended
22% over limit
Discharged 18.25 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
94% over limit
Discharged 5.53879995 kg/d against a permitted limit of 2.8602 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
206% over limit
Discharged 9.19 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
January 31, 2026
Solids, total suspended
43% over limit
Discharged 21.5 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
57% over limit
Discharged 4.71 mg/L against a permitted limit of 3 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
December 31, 2025
Solids, total suspended
68% over limit
Discharged 25.2 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1% over limit
Discharged 15.1 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
5% over limit
Discharged 3.15 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
November 30, 2025
Nitrogen, ammonia total [as N]
180% over limit
Discharged 8.41 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
119% over limit
Discharged 32.9 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
October 31, 2025
Solids, total suspended
240% over limit
Discharged 51 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
195% over limit
Discharged 177 mg/L against a permitted limit of 60 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
September 30, 2025
Oxygen, dissolved [DO]
35% over limit
Discharged 2.6 mg/L against a permitted limit of 4 mg/L (MO MIN)
DMR, Limited - Numeric Violation
Solids, total suspended
247% over limit
Discharged 208 mg/L against a permitted limit of 60 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
Solids, total suspended
270% over limit
Discharged 55.5 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
29% over limit
Discharged 45 mg/L against a permitted limit of 35 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
28% over limit
Discharged 12.75 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
53% over limit
Discharged 22.9 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
30% over limit
Discharged 13 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
57% over limit
Discharged 4.72 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
June 30, 2025
Solids, total suspended
8% over limit
Discharged 16.25 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
April 30, 2025
BOD, carbonaceous [5 day, 20 C]
53% over limit
Discharged 15.25 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
227% over limit
Discharged 9.82 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
47% over limit
Discharged 22.1 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
Solids, total suspended
20% over limit
Discharged 18 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
90% over limit
Discharged 0.4 mg/L against a permitted limit of 4 mg/L (MO MIN)
DMR, Limited - Numeric Violation
March 31, 2025
Solids, total suspended
39% over limit
Discharged 20.8 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
11% over limit
Discharged 15.68569987 kg/d against a permitted limit of 14.074 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
47% over limit
Discharged 88 mg/L against a permitted limit of 60 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
December 31, 2024
Oxygen, dissolved [DO]
75% over limit
Discharged 1 mg/L against a permitted limit of 4 mg/L (MO MIN)
DMR, Limited - Numeric Violation
September 30, 2024
E. coli
106% over limit
Discharged 821 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
E. coli
552% over limit
Discharged 821 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
July 31, 2024
E. coli
46% over limit
Discharged 582.45 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
E. coli
362% over limit
Discharged 582.45 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)