COMO POTW
NPDES ID: MS0030104
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
This quarter: 37 reporting violations.
Violations
March 31, 2026
Coliform, fecal general
21% over limit
Discharged 2420 MPN/100mL against a permitted limit of 2000 MPN/100mL (MO AVG)
DMR, Limited - Overdue
Coliform, fecal general
21% over limit
Discharged 2420 MPN/100mL against a permitted limit of 2000 MPN/100mL (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 40.32427966 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.5448 kg/d against a permitted limit of 23.6079998 kg/d (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 52.25085956 kg/d against a permitted limit of 127.57399893 kg/d (MO MAX)
DMR, Limited - Overdue
Coliform, fecal general
0% over limit
Discharged 2420 MPN/100mL against a permitted limit of 4000 MPN/100mL (MO MAX)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 82.9230993 kg/d against a permitted limit of 0 kg/d (MO MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.4 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 16.7 mg/L against a permitted limit of 0 mg/L (MO MAX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 92 mg/L against a permitted limit of 135 mg/L (MO MAX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 9.48405992 kg/d against a permitted limit of 0 kg/d (MO MAX)
DMR, Monitor Only - Overdue
BOD, 5-day, percent removal
0% over limit
Discharged 67 % against a permitted limit of 0 % (MINIMUM)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.957 mg/L against a permitted limit of 38 mg/L (MO MAX)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.005902 kg/d against a permitted limit of 0.01816 kg/d (MO MAX)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 49 mg/L against a permitted limit of 90 mg/L (MO MAX)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.01 mg/L against a permitted limit of 0.012 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.957 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
9% over limit
Discharged 49 mg/L against a permitted limit of 45 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
9% over limit
Discharged 49 mg/L against a permitted limit of 45 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
0% over limit
Discharged 0.005902 kg/d against a permitted limit of 0.01362 kg/d (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 146 mg/L against a permitted limit of 0 mg/L (MO MAX)
DMR, Monitor Only - Overdue
Solids, suspended percent removal
0% over limit
Discharged 0 % against a permitted limit of 0 % (MINIMUM)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 40.32427966 kg/d against a permitted limit of 0 kg/d (MO MAX)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.18 MGD against a permitted limit of 0 MGD (MO MAX)
DMR, Monitor Only - Overdue
Solids, total suspended
2% over limit
Discharged 92 mg/L against a permitted limit of 90 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
2% over limit
Discharged 92 mg/L against a permitted limit of 90 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.15 MGD against a permitted limit of 0.25 MGD (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 9.48405992 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 71 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Chlorine, total residual
0% over limit
Discharged 0.01 mg/L against a permitted limit of 0.02 mg/L (MO MAX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.5448 kg/d against a permitted limit of 35.8659997 kg/d (MO MAX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.8 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 71 mg/L against a permitted limit of 0 mg/L (MO MAX)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 146 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 7.6 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 27.83019977 kg/d against a permitted limit of 42.67599964 kg/d (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 27.83019977 kg/d against a permitted limit of 85.35199928 kg/d (MO MAX)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 82.9230993 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 16.7 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 52.25085956 kg/d against a permitted limit of 85.35199928 kg/d (MO AVG)
DMR, Limited - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)