JOINER, CITY OF-WWTP
NPDES ID: AR0022152
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
This quarter: 4 compliance schedule violations.
Violations
October 31, 2025
Oxygen, dissolved [DO]
33% over limit
Discharged 2.02 mg/L against a permitted limit of 3 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
28% over limit
Discharged 6.4 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
2% over limit
Discharged 30.5 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Solids, total suspended
53% over limit
Discharged 46 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
4% over limit
Discharged 20.8 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
2% over limit
Discharged 46 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
24% over limit
Discharged 14.10577988 kg/d against a permitted limit of 11.3953999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
66% over limit
Discharged 1.03 mg/L against a permitted limit of 3 mg/L (INST MIN)
DMR, Limited - Numeric Violation
August 31, 2025
Oxygen, dissolved [DO]
52% over limit
Discharged 1.43 mg/L against a permitted limit of 3 mg/L (INST MIN)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
30% over limit
Discharged 26 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
44% over limit
Discharged 65 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
52% over limit
Discharged 45.5 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Solids, total suspended
59% over limit
Discharged 47.8 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
52% over limit
Discharged 1.43 mg/L against a permitted limit of 3 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Solids, total suspended
18% over limit
Discharged 53 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Chlorine, total residual
900% over limit
Discharged 0.11 mg/L against a permitted limit of 0.011 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
23% over limit
Discharged 2.3 mg/L against a permitted limit of 3 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Solids, total suspended
22% over limit
Discharged 36.5 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Nitrogen, ammonia total [as N]
40% over limit
Discharged 10.5 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
46% over limit
Discharged 2.78755998 kg/d against a permitted limit of 1.90679998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
84% over limit
Discharged 9.2 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Nitrogen, ammonia total [as N]
48% over limit
Discharged 7.7 mg/L against a permitted limit of 5.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
40% over limit
Discharged 3 mg/L against a permitted limit of 5 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
62% over limit
Discharged 8.4 mg/L against a permitted limit of 5.2 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
78% over limit
Discharged 3.46855997 kg/d against a permitted limit of 1.95219998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Solids, total suspended
0% over limit
Discharged 1.04873999 kg/d against a permitted limit of 11.3953999 kg/d (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.13 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Coliform, fecal general
0% over limit
Discharged 543 MPN/100mL against a permitted limit of 1000 MPN/100mL (MO GEO)
DMR, Limited - Overdue
Coliform, fecal general
0% over limit
Discharged 548 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 1.77967999 kg/d against a permitted limit of 7.58179994 kg/d (MO AVG)
DMR, Limited - Overdue
Overflows
0% over limit
Discharged 0 occur/d against a permitted limit of 0 occur/d (MO TOTAL)
DMR, Monitor Only - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 4.2 mg/L against a permitted limit of 30 mg/L (7 DA AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 4 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
8% over limit
Discharged 4.94405996 kg/d against a permitted limit of 4.58539996 kg/d (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
8% over limit
Discharged 4.94405996 kg/d against a permitted limit of 4.58539996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
0% over limit
Discharged 7.64 mg/L against a permitted limit of 5 mg/L (INST MIN)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 3.8 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.011 mg/L (INST MAX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 2.5 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.1 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 11 mg/L against a permitted limit of 14.7 mg/L (7 DA AVG)
DMR, Limited - Overdue
Overflow volume [SS0 volume, CSO volume]
0% over limit
Discharged 0 gal against a permitted limit of 0 gal (MO TOTAL)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.0947 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 10.7 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.139 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
January 31, 2025
Chlorine, total residual
718% over limit
Discharged 0.09 mg/L against a permitted limit of 0.011 mg/L (INST MAX)
DMR, Limited - Numeric Violation
December 31, 2024
Chlorine, total residual
718% over limit
Discharged 0.09 mg/L against a permitted limit of 0.011 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
15% over limit
Discharged 5.27093996 kg/d against a permitted limit of 4.58539996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
2% over limit
Discharged 4.92 mg/L against a permitted limit of 5 mg/L (INST MIN)
DMR, Limited - Numeric Violation
November 30, 2024
Oxygen, dissolved [DO]
37% over limit
Discharged 3.17 mg/L against a permitted limit of 5 mg/L (INST MIN)
DMR, Limited - Numeric Violation
September 30, 2024
Oxygen, dissolved [DO]
19% over limit
Discharged 2.43 mg/L against a permitted limit of 3 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 1000 MPN/100mL (MO GEO)
DMR, Limited - Numeric Violation
August 31, 2024
Solids, total suspended
23% over limit
Discharged 37 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
31% over limit
Discharged 2.07 mg/L against a permitted limit of 3 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Solids, total suspended
2% over limit
Discharged 46 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (10 hours ago)