TREMONTON CITY CORPORATION
NPDES ID: UT0020303
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
This quarter: 27 effluent violations.
Violations
June 30, 2026
Oxygen, dissolved [DO]
90% over limit
Discharged 0.5 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
13% over limit
Discharged 39.5 mg/L against a permitted limit of 35 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
53% over limit
Discharged 77.1 % against a permitted limit of 85 % (MN % RMV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
32% over limit
Discharged 33 mg/L against a permitted limit of 25 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Solids, total suspended
29% over limit
Discharged 45 mg/L against a permitted limit of 35 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
E. coli
152% over limit
Discharged 395.9 MPN/100mL against a permitted limit of 157 MPN/100mL (MX WK AV)
DMR, Limited - Numeric Violation
E. coli
414% over limit
Discharged 648 MPN/100mL against a permitted limit of 126 MPN/100mL (MX MO AV)
DMR, Limited - Numeric Violation
Solids, total suspended
52% over limit
Discharged 38 mg/L against a permitted limit of 25 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
May 31, 2026
E. coli
208% over limit
Discharged 387.6 MPN/100mL against a permitted limit of 126 MPN/100mL (MX MO AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
172% over limit
Discharged 68 mg/L against a permitted limit of 25 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
81% over limit
Discharged 63.5 mg/L against a permitted limit of 35 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
11% over limit
Discharged 83.4 % against a permitted limit of 85 % (MN % RMV)
DMR, Limited - Numeric Violation
Solids, total suspended
99% over limit
Discharged 69.5 mg/L against a permitted limit of 35 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
68% over limit
Discharged 1.6 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
Solids, total suspended
120% over limit
Discharged 55 mg/L against a permitted limit of 25 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
E. coli
817% over limit
Discharged 1440 MPN/100mL against a permitted limit of 157 MPN/100mL (MX WK AV)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
11% over limit
Discharged 83.4 % against a permitted limit of 85 % (MN % RMV)
DMR, Limited - Numeric Violation
April 30, 2026
E. coli
1820% over limit
Discharged 2419 MPN/100mL against a permitted limit of 126 MPN/100mL (MX MO AV)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
72% over limit
Discharged 1.4 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
Solids, total suspended
252% over limit
Discharged 88 mg/L against a permitted limit of 25 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Solids, total suspended
340% over limit
Discharged 154 mg/L against a permitted limit of 35 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
188% over limit
Discharged 72 mg/L against a permitted limit of 25 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
183% over limit
Discharged 57.5 % against a permitted limit of 85 % (MN % RMV)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
53% over limit
Discharged 77.1 % against a permitted limit of 85 % (MN % RMV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
16% over limit
Discharged 17.4 mg/L against a permitted limit of 15 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
317% over limit
Discharged 146 mg/L against a permitted limit of 35 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
E. coli
1441% over limit
Discharged 2419 MPN/100mL against a permitted limit of 157 MPN/100mL (MX WK AV)
DMR, Limited - Numeric Violation
March 31, 2026
Oxygen, dissolved [DO]
14% over limit
Discharged 4.3 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
19% over limit
Discharged 41.5 mg/L against a permitted limit of 35 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
E. coli
1165% over limit
Discharged 1986 MPN/100mL against a permitted limit of 157 MPN/100mL (MX WK AV)
DMR, Limited - Numeric Violation
E. coli
330% over limit
Discharged 542 MPN/100mL against a permitted limit of 126 MPN/100mL (MX MO AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (4 hours ago)