NPDES ID: MO0086975
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: 3 effluent violations.
Violations
June 30, 2026
E. coli
47492% over limit
Discharged 98040 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
223% over limit
Discharged 4.2 mg/L against a permitted limit of 1.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
9418% over limit
Discharged 98040 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2026
Nitrogen, ammonia total [as N]
622% over limit
Discharged 26.7 mg/L against a permitted limit of 3.7 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
145% over limit
Discharged 26.7 mg/L against a permitted limit of 10.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
pH
0% over limit
Discharged 7.26 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.000531 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 23 mg/L against a permitted limit of 70 mg/L (MO AVG)
DMR, Limited - Overdue
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Overdue
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
462% over limit
Discharged 20.8 mg/L against a permitted limit of 3.7 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
462% over limit
Discharged 20.8 mg/L against a permitted limit of 3.7 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
91% over limit
Discharged 20.8 mg/L against a permitted limit of 10.9 mg/L (DAILY MX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
91% over limit
Discharged 20.8 mg/L against a permitted limit of 10.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 28 mg/L against a permitted limit of 45 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 23 mg/L against a permitted limit of 110 mg/L (WKLY AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.26 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.000531 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 28 mg/L against a permitted limit of 65 mg/L (WKLY AVG)
DMR, Limited - Overdue
September 30, 2025
E. coli
117356% over limit
Discharged 241960 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Overdue
E. coli
117356% over limit
Discharged 241960 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
30% over limit
Discharged 6.5 mg/L against a permitted limit of 5 mg/L (DAILY MX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
30% over limit
Discharged 6.5 mg/L against a permitted limit of 5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.000499 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 6.86 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 16 mg/L against a permitted limit of 45 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 11 mg/L against a permitted limit of 110 mg/L (WKLY AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 11 mg/L against a permitted limit of 70 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
400% over limit
Discharged 6.5 mg/L against a permitted limit of 1.3 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
400% over limit
Discharged 6.5 mg/L against a permitted limit of 1.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.000499 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
E. coli
23391% over limit
Discharged 241960 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
E. coli
23391% over limit
Discharged 241960 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 16 mg/L against a permitted limit of 65 mg/L (WKLY AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 6.86 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
June 30, 2025
Nitrogen, ammonia total [as N]
0% over limit
Discharged 4.64 mg/L against a permitted limit of 5 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.007608 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Overdue
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 8.4 mg/L against a permitted limit of 45 mg/L (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 6.9 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 6.9 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.007608 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 30 mg/L against a permitted limit of 70 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 30 mg/L against a permitted limit of 110 mg/L (WKLY AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
257% over limit
Discharged 4.64 mg/L against a permitted limit of 1.3 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
257% over limit
Discharged 4.64 mg/L against a permitted limit of 1.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 8.4 mg/L against a permitted limit of 65 mg/L (WKLY AVG)
DMR, Limited - Overdue
March 31, 2025
Solids, total suspended
0% over limit
Discharged 36 mg/L against a permitted limit of 110 mg/L (WKLY AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.004282 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 36 mg/L against a permitted limit of 70 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
31% over limit
Discharged 59 mg/L against a permitted limit of 45 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
31% over limit
Discharged 59 mg/L against a permitted limit of 45 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 7.94 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
25% over limit
Discharged 13.6 mg/L against a permitted limit of 10.9 mg/L (DAILY MX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
25% over limit
Discharged 13.6 mg/L against a permitted limit of 10.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 59 mg/L against a permitted limit of 65 mg/L (WKLY AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
268% over limit
Discharged 13.6 mg/L against a permitted limit of 3.7 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
268% over limit
Discharged 13.6 mg/L against a permitted limit of 3.7 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 7.94 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.004282 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
December 31, 2024
Solids, total suspended
0% over limit
Discharged 18 mg/L against a permitted limit of 110 mg/L (WKLY AVG)
DMR, Limited - Overdue
E. coli
9717% over limit
Discharged 101120 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
E. coli
9717% over limit
Discharged 101120 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
435% over limit
Discharged 19.8 mg/L against a permitted limit of 3.7 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
435% over limit
Discharged 19.8 mg/L against a permitted limit of 3.7 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 7.1 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.1 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
E. coli
48987% over limit
Discharged 101120 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Overdue
E. coli
48987% over limit
Discharged 101120 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.002536 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
82% over limit
Discharged 19.8 mg/L against a permitted limit of 10.9 mg/L (DAILY MX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
82% over limit
Discharged 19.8 mg/L against a permitted limit of 10.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 33 mg/L against a permitted limit of 65 mg/L (WKLY AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 33 mg/L against a permitted limit of 45 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 18 mg/L against a permitted limit of 70 mg/L (MO AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.002536 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
September 30, 2024
Solids, total suspended
0% over limit
Discharged 10 mg/L against a permitted limit of 70 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 16 mg/L against a permitted limit of 65 mg/L (WKLY AVG)
DMR, Limited - Overdue
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Overdue
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 16 mg/L against a permitted limit of 45 mg/L (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.2 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
206% over limit
Discharged 15.3 mg/L against a permitted limit of 5 mg/L (DAILY MX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
206% over limit
Discharged 15.3 mg/L against a permitted limit of 5 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
E. coli
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 1030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.000097 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
1077% over limit
Discharged 15.3 mg/L against a permitted limit of 1.3 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
1077% over limit
Discharged 15.3 mg/L against a permitted limit of 1.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.000097 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.2 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 10 mg/L against a permitted limit of 110 mg/L (WKLY AVG)
DMR, Limited - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)