AMERICAN CRYSTAL SUGAR - MOORHEAD
NPDES ID: MN0001945
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 single-event violations.
Violations
September 30, 2025
BOD, 5-day, 20 deg. C
30% over limit
Discharged 32.5 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
21% over limit
Discharged 1142 kg/d against a permitted limit of 945 kg/d (MO MAX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
135% over limit
Discharged 1111.5 kg/d against a permitted limit of 472 kg/d (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Toxicity, salmo acute
0% over limit
Discharged 0 toxic against a permitted limit of 0.9999 toxic (DAILY MX)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Nitrogen, ammonia, tot unionized [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (5 days ago)