FOUR ACRES ESTATES LLC WWTF
NPDES ID: MO0110493
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 reporting violations.
Violations
March 31, 2026
Nitrogen, ammonia total [as N]
0% over limit
Discharged 1.52 mg/L against a permitted limit of 2.9 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
247% over limit
Discharged 416 mg/L against a permitted limit of 120 mg/L (WKLY AVG)
DMR, Limited - Overdue
Solids, total suspended
247% over limit
Discharged 416 mg/L against a permitted limit of 120 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 9.6 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.005706 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 9.6 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 9.6 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
0% over limit
Discharged 1.52 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
420% over limit
Discharged 416 mg/L against a permitted limit of 80 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
420% over limit
Discharged 416 mg/L against a permitted limit of 80 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
180% over limit
Discharged 126 mg/L against a permitted limit of 45 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
180% over limit
Discharged 126 mg/L against a permitted limit of 45 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
94% over limit
Discharged 126 mg/L against a permitted limit of 65 mg/L (WKLY AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
94% over limit
Discharged 126 mg/L against a permitted limit of 65 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.005706 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
December 31, 2025
Nitrogen, ammonia total [as N]
132% over limit
Discharged 17.4 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
71% over limit
Discharged 77 mg/L against a permitted limit of 45 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
1075% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
E. coli
135% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
500% over limit
Discharged 17.4 mg/L against a permitted limit of 2.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
18% over limit
Discharged 77 mg/L against a permitted limit of 65 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
September 30, 2025
E. coli
1075% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
258% over limit
Discharged 12.9 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
821% over limit
Discharged 12.9 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
135% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
337% over limit
Discharged 6.12 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
70% over limit
Discharged 6.12 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
143% over limit
Discharged 499.6 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
March 31, 2025
Nitrogen, ammonia total [as N]
29% over limit
Discharged 9.68 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
234% over limit
Discharged 9.68 mg/L against a permitted limit of 2.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Nitrogen, ammonia total [as N]
91% over limit
Discharged 14.3 mg/L against a permitted limit of 7.5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
7% over limit
Discharged 1100 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
393% over limit
Discharged 14.3 mg/L against a permitted limit of 2.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
20% over limit
Discharged 54 mg/L against a permitted limit of 45 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
434% over limit
Discharged 1100 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
September 30, 2024
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
E. coli
135% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
1075% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
300% over limit
Discharged 14.4 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
929% over limit
Discharged 14.4 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)