OAK CREEK TOWN OF
NPDES ID: COG589159
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
This quarter: 4 effluent violations, 2 permit schedule violations.
Violations
June 30, 2026
Solids, suspended percent removal
20% over limit
Discharged 82 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
May 31, 2026
Solids, suspended percent removal
13% over limit
Discharged 83 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, suspended percent removal
20% over limit
Discharged 82 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
27% over limit
Discharged 81 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
December 31, 2025
Iron, dissolved [as Fe]
94% over limit
Discharged 0.66300003 mg/L against a permitted limit of 0.34200002 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Iron, dissolved [as Fe]
94% over limit
Discharged 0.66300003 mg/L against a permitted limit of 0.34200002 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (5 days ago)