MARIONVILLE WWTP
NPDES ID: MO0023159
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
This quarter: 3 effluent violations, 30 reporting violations.
Violations
May 31, 2026
E. coli
109% over limit
Discharged 2156 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
E. coli
19% over limit
Discharged 246 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
April 30, 2026
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 5.7 mg/L (DAILY MX)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
BOD, 5-day, percent removal
0% over limit
Discharged 0 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - 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
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, suspended percent removal
0% over limit
Discharged 0 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Overdue
Oil and grease [soxhlet extr.] tot.
0% over limit
Discharged 0 mg/L against a permitted limit of 10 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
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 1.3 mg/L (MO AVG)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Overdue
Oil and grease [soxhlet extr.] tot.
0% over limit
Discharged 0 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 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
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
March 31, 2026
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Oil and grease [soxhlet extr.] tot.
0% over limit
Discharged 0 mg/L against a permitted limit of 10 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 (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Oil and grease [soxhlet extr.] tot.
0% over limit
Discharged 0 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 30 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 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
Solids, suspended percent removal
0% over limit
Discharged 0 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
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
BOD, 5-day, percent removal
0% over limit
Discharged 0 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
September 30, 2025
Nitrogen, ammonia total [as N]
23% over limit
Discharged 1.6 mg/L against a permitted limit of 1.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Nitrogen, ammonia total [as N]
38% over limit
Discharged 1.8 mg/L against a permitted limit of 1.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
8% over limit
Discharged 1.4 mg/L against a permitted limit of 1.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
E. coli
55% over limit
Discharged 1600 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
E. coli
195% over limit
Discharged 607 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
138% over limit
Discharged 3.1 mg/L against a permitted limit of 1.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Nitrogen, ammonia total [as N]
8% over limit
Discharged 1.4 mg/L against a permitted limit of 1.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (5 hours ago)