WESTERN SUGAR COOPERATIVE
NPDES ID: MT0000281
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, 1 compliance schedule violation.
Violations
April 30, 2026
Nitrogen, ammonia total [as N]
6% over limit
Discharged 37 mg/L against a permitted limit of 35 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Specific conductance
28% over limit
Discharged 3196 umho/cm against a permitted limit of 2500 umho/cm (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2026
Nitrogen, ammonia total [as N]
9% over limit
Discharged 38 mg/L against a permitted limit of 35 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Specific conductance
24% over limit
Discharged 3105 umho/cm against a permitted limit of 2500 umho/cm (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
40% over limit
Discharged 9.9 mg/L against a permitted limit of 7.08 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
236% over limit
Discharged 9.4 mg/L against a permitted limit of 2.8 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (5 days ago)