J.R.SIMPLOT COMPANY - IDAHO POTATO PLANT
NPDES ID: IDR053091
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
Violations
March 31, 2025
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 33 mg/L (INST MAX)
DMR, Limited - Overdue
E. coli, MTEC-MF
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 126 MPN/100mL (GEO MEAN)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.35 mg/L (INST MAX)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.35 mg/L (INST MAX)
DMR, Limited - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)