NORTHPORT WWTP
NPDES ID: AL0064394
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
This quarter: 14 effluent violations, 1 compliance schedule violation.
Violations
June 30, 2026
Nitrogen, ammonia total [as N]
215% over limit
Discharged 89.43799925 kg/d against a permitted limit of 28.37499976 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
613% over limit
Discharged 10.7 mg/L against a permitted limit of 1.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
230% over limit
Discharged 3.3 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
49% over limit
Discharged 28.14799976 kg/d against a permitted limit of 18.93179984 kg/d (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2026
BOD, carbonaceous [5 day, 20 C]
30% over limit
Discharged 5.2 mg/L against a permitted limit of 4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
867% over limit
Discharged 14.5 mg/L against a permitted limit of 1.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (6 days ago)