RIO DELL POTW
NPDES ID: CA0022748
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: 1 effluent violation, 1 compliance schedule violation.
Violations
June 30, 2026
Coliform, total general
46% over limit
Discharged 350 MPN/100mL against a permitted limit of 240 MPN/100mL (MXSINSAM)
DMR, Limited - Numeric Violation
March 31, 2026
Dichlorobromomethane
168% over limit
Discharged 0.0015 mg/L against a permitted limit of 0.00056 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
14450% over limit
Discharged 1.455 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
28460% over limit
Discharged 2.856 mg/L against a permitted limit of 0.01 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
8250% over limit
Discharged 1.67 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chlorine, total residual
24095% over limit
Discharged 4.839 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (6 days ago)