HUMPHREY, CITY OF - WWTP
NPDES ID: AR0022284
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
This quarter: 21 effluent violations, 1 compliance schedule violation, 2 permit schedule violations.
Violations
June 30, 2026
Oxygen, dissolved [DO]
74% over limit
Discharged 1.28 mg/L against a permitted limit of 5 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Solids, total suspended
653% over limit
Discharged 113 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
500% over limit
Discharged 24 mg/L against a permitted limit of 4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
23% over limit
Discharged 18.5 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
639% over limit
Discharged 170 mg/L against a permitted limit of 23 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
333% over limit
Discharged 26 mg/L against a permitted limit of 6 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (4 days ago)