O'NEILL WASTEWATER TREATMENT FACILITY
NPDES ID: NE0049051
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
This quarter: 1 effluent violation.
Violations
May 31, 2026
E. coli, MTEC-MF
87% over limit
Discharged 236 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEO)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
108% over limit
Discharged 18.5 mg/L against a permitted limit of 8.88 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
73% over limit
Discharged 21.53 kg/d against a permitted limit of 12.44 kg/d (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
0% over limit
Discharged 0 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 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Temperature, water deg. fahrenheit
0% over limit
Discharged 0 deg F against a permitted limit of 0 deg F (DAILY MX)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (5 days ago)