HERMITAGE, CITY OF
NPDES ID: AR0051055
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
This quarter: 2 effluent violations.
Violations
May 31, 2026
Nitrogen, ammonia total [as N]
19% over limit
Discharged 6.2 mg/L against a permitted limit of 5.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
49% over limit
Discharged 1.02 mg/L against a permitted limit of 2 mg/L (INST MIN)
DMR, Limited - Numeric Violation
October 31, 2025
Solids, total suspended
8% over limit
Discharged 5.71585995 kg/d against a permitted limit of 5.31179996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
10% over limit
Discharged 1.81 mg/L against a permitted limit of 2 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Solids, total suspended
136% over limit
Discharged 47.2 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
57% over limit
Discharged 47.2 mg/L against a permitted limit of 30 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
21% over limit
Discharged 24.2 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Solids, total suspended
53% over limit
Discharged 8.14021993 kg/d against a permitted limit of 5.31179996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
41% over limit
Discharged 42.2 mg/L against a permitted limit of 30 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
111% over limit
Discharged 42.2 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
5% over limit
Discharged 1046.2 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
December 31, 2024
Coliform, fecal general
99% over limit
Discharged 1986.3 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
12% over limit
Discharged 22.4 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2024
Solids, total suspended
90% over limit
Discharged 38 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
3% over limit
Discharged 5.44799995 kg/d against a permitted limit of 5.31179996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
142% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
21% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
50% over limit
Discharged 45 mg/L against a permitted limit of 30 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
27% over limit
Discharged 38 mg/L against a permitted limit of 30 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
125% over limit
Discharged 45 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)