LA VALLE WASTEWATER TREATMENT FACILITY
NPDES ID: WI0028878
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
Phosphorus, total [as P]
58% over limit
Discharged 0.475 mg/L against a permitted limit of 0.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Phosphorus, total [as P]
204% over limit
Discharged 0.911 mg/L against a permitted limit of 0.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Phosphorus, total [as P]
85% over limit
Discharged 0.5558 mg/L against a permitted limit of 0.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Phosphorus, total [as P]
50% over limit
Discharged 0.4508 mg/L against a permitted limit of 0.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Phosphorus, total [as P]
71% over limit
Discharged 0.5143 mg/L against a permitted limit of 0.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Phosphorus, total [as P]
97% over limit
Discharged 0.5915 mg/L against a permitted limit of 0.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (5 days ago)