LAKE CHATEAU SUBDIVISION WWTF
NPDES ID: MO0108332
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
This quarter: 1 effluent violation.
Violations
June 30, 2026
pH
0% over limit
Discharged 6.4 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 80 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 65 mg/L (WKLY AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 2.8 mg/L (MO AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.017 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 9.4 mg/L (DAILY MX)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.008 mg/L (MO AVG)
DMR, Limited - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MN)
DMR, Monitor Only - Overdue
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AV MN)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 120 mg/L (WKLY AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
December 31, 2024
Chlorine, total residual
1371% over limit
Discharged 0.25000001 mg/L against a permitted limit of 0.017 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chlorine, total residual
3025% over limit
Discharged 0.25000001 mg/L against a permitted limit of 0.008 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Nitrogen, ammonia total [as N]
14% over limit
Discharged 1.6 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)