WINNEBAGO WASTEWATER TREATMENT FACILITY
NPDES ID: NE0113212
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
This quarter: 1 effluent violation, 1 compliance schedule violation.
Violations
April 30, 2026
BOD, 5-day, 20 deg. C
29% over limit
Discharged 38.7 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
BOD, 5-day, percent removal
40% over limit
Discharged 79 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
100% over limit
Discharged 70 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
33% over limit
Discharged 39.8 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Oxygen, dissolved [DO]
6% over limit
Discharged 4.7 mg/L against a permitted limit of 5 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
October 31, 2025
Oxygen, dissolved [DO]
44% over limit
Discharged 2.8 mg/L against a permitted limit of 5 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (6 days ago)