FILLMORE WWTF
NPDES ID: MO0117722
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: 1 single-event violation.
Violations
February 28, 2026
Nitrogen, ammonia total [as N]
867% over limit
Discharged 23.2 mg/L against a permitted limit of 2.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
209% over limit
Discharged 23.2 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Solids, total suspended
2% over limit
Discharged 71.5 mg/L against a permitted limit of 70 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
2% over limit
Discharged 46 mg/L against a permitted limit of 45 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
291% over limit
Discharged 29.3 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1121% over limit
Discharged 29.3 mg/L against a permitted limit of 2.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
134% over limit
Discharged 18 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, ammonia total [as N]
186% over limit
Discharged 6.87 mg/L against a permitted limit of 2.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
20% over limit
Discharged 58 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
117% over limit
Discharged 7.82 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
459% over limit
Discharged 7.82 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Nitrogen, ammonia total [as N]
130% over limit
Discharged 6.68 mg/L against a permitted limit of 2.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 9.06 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
September 30, 2024
Nitrogen, ammonia total [as N]
506% over limit
Discharged 8.48 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
136% over limit
Discharged 8.48 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
1002% over limit
Discharged 2270 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
E. coli
120% over limit
Discharged 2270 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)