SELMA VILLAGE WWTF
NPDES ID: MO0088854
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
This quarter: 11 effluent violations.
Violations
May 31, 2026
Solids, total suspended
233% over limit
Discharged 150 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
851% over limit
Discharged 9800 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1242% over limit
Discharged 18.79 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
2872% over limit
Discharged 6123 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
422% over limit
Discharged 18.79 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
186% over limit
Discharged 0 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, total suspended
400% over limit
Discharged 150 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Nitrogen, ammonia total [as N]
2058% over limit
Discharged 30.21 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
679% over limit
Discharged 1605 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
739% over limit
Discharged 30.21 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
56% over limit
Discharged 1605 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
March 31, 2026
Nitrogen, ammonia total [as N]
755% over limit
Discharged 24.8 mg/L against a permitted limit of 2.9 mg/L (MO MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
276% over limit
Discharged 24.8 mg/L against a permitted limit of 6.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
592% over limit
Discharged 45.67 mg/L against a permitted limit of 6.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1475% over limit
Discharged 45.67 mg/L against a permitted limit of 2.9 mg/L (MO MAX)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
1279% over limit
Discharged 39.99 mg/L against a permitted limit of 2.9 mg/L (MO MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
506% over limit
Discharged 39.99 mg/L against a permitted limit of 6.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, ammonia total [as N]
665% over limit
Discharged 22.19 mg/L against a permitted limit of 2.9 mg/L (MO MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
236% over limit
Discharged 22.19 mg/L against a permitted limit of 6.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
BOD, 5-day, 20 deg. C
0% over limit
Discharged 24 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.44 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
768% over limit
Discharged 25.17 mg/L against a permitted limit of 2.9 mg/L (MO MAX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
768% over limit
Discharged 25.17 mg/L against a permitted limit of 2.9 mg/L (MO MAX)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
0% over limit
Discharged 87 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 30 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
281% over limit
Discharged 25.17 mg/L against a permitted limit of 6.6 mg/L (DAILY MX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
281% over limit
Discharged 25.17 mg/L against a permitted limit of 6.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.095 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.44 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 24 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 30 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.095 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Solids, suspended percent removal
0% over limit
Discharged 83 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
October 31, 2025
BOD, 5-day, 20 deg. C
0% over limit
Discharged 21 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.4 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 2.73 mg/L against a permitted limit of 6.6 mg/L (DAILY MX)
DMR, Limited - Overdue
BOD, 5-day, percent removal
0% over limit
Discharged 84 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 24 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
E. coli
754% over limit
Discharged 8800 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Overdue
E. coli
754% over limit
Discharged 8800 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
E. coli
4172% over limit
Discharged 8800 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Overdue
E. coli
4172% over limit
Discharged 8800 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
0% over limit
Discharged 90 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 2.73 mg/L against a permitted limit of 2.9 mg/L (MO MAX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.4 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.1 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 21 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.1 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 24 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
September 30, 2025
Nitrogen, ammonia total [as N]
160% over limit
Discharged 9.35 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
568% over limit
Discharged 9.35 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Nitrogen, ammonia total [as N]
181% over limit
Discharged 10.1 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
621% over limit
Discharged 10.1 mg/L against a permitted limit of 1.4 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 (7 DA GEO)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
132% over limit
Discharged 18.9 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
181% over limit
Discharged 10.1 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
1074% over limit
Discharged 2419 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
E. coli
135% over limit
Discharged 2419 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
621% over limit
Discharged 10.1 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
BOD, 5-day, percent removal
6% over limit
Discharged 63 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
198% over limit
Discharged 134 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
347% over limit
Discharged 134 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 6.24 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
May 31, 2025
E. coli
135% over limit
Discharged 2419 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
17% over limit
Discharged 59 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
150% over limit
Discharged 12.45 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
E. coli
1074% over limit
Discharged 2419 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
April 30, 2025
E. coli
68% over limit
Discharged 1732 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
E. coli
741% over limit
Discharged 1732 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
152% over limit
Discharged 11.82 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
375% over limit
Discharged 17.1 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1121% over limit
Discharged 17.1 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
180% over limit
Discharged 2.1 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
March 31, 2025
BOD, 5-day, percent removal
13% over limit
Discharged 60.6 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
169% over limit
Discharged 5.8 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
February 28, 2025
Solids, suspended percent removal
71% over limit
Discharged 40 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
November 30, 2024
BOD, 5-day, percent removal
173% over limit
Discharged 4.44 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
83% over limit
Discharged 55 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
185% over limit
Discharged 0.1 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
22% over limit
Discharged 55 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
October 31, 2024
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 (7 DA GEO)
DMR, Limited - Numeric Violation
September 30, 2024
E. coli
Limit violation
Discharged 2419 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
183% over limit
Discharged 0.93 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2419 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
184% over limit
Discharged 0.6 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
26% over limit
Discharged 4.52 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
223% over limit
Discharged 4.52 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2024
E. coli
440% over limit
Discharged 1112 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
143% over limit
Discharged 3.4 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
8% over limit
Discharged 1112 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
July 31, 2024
E. coli
826% over limit
Discharged 9539 MPN/100mL against a permitted limit of 1030 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1000% over limit
Discharged 15.4 mg/L against a permitted limit of 1.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
328% over limit
Discharged 15.4 mg/L against a permitted limit of 3.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
4531% over limit
Discharged 9539 MPN/100mL against a permitted limit of 206 MPN/100mL (30DA GM)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (25 days ago)