WORTHINGTON INDUSTRIAL WWTP
NPDES ID: MN0031178
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: 2 effluent violations.
Violations
May 31, 2026
Nitrogen, total [as N]
42% over limit
Discharged 189.74 mg/L against a permitted limit of 134 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Nitrogen, total [as N]
38% over limit
Discharged 184.67 mg/L against a permitted limit of 134 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Nitrogen, total [as N]
3% over limit
Discharged 199.51 mg/L against a permitted limit of 194 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
49% over limit
Discharged 199.51 mg/L against a permitted limit of 134 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, total [as N]
22% over limit
Discharged 163.23 mg/L against a permitted limit of 134 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, total [as N]
22% over limit
Discharged 163.48 mg/L against a permitted limit of 134 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, total [as N]
33% over limit
Discharged 177.85 mg/L against a permitted limit of 134 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Nitrogen, total [as N]
41% over limit
Discharged 189.31 mg/L against a permitted limit of 134 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Nitrogen, total [as N]
34% over limit
Discharged 179.25 mg/L against a permitted limit of 134 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Nitrogen, total [as N]
33% over limit
Discharged 178.88 mg/L against a permitted limit of 134 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Nitrogen, total [as N]
8% over limit
Discharged 210 mg/L against a permitted limit of 194 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
57% over limit
Discharged 210 mg/L against a permitted limit of 134 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, total [as N]
39% over limit
Discharged 185.66 mg/L against a permitted limit of 134 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, total [as N]
40% over limit
Discharged 187.34 mg/L against a permitted limit of 134 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
BOD, carbonaceous [5 day, 20 C]
Limit violation
Discharged 46.7 kg/d against a permitted limit of 334 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)