S. SHERIDAN-LITTLE CREEK WATER

NPDES ID: ARG640121

X — SNC: Effluent violation (non-monthly average limit)

The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.

This quarter: 3 effluent violations.

Violations

June 30, 2026

Iron, dissolved [as Fe]

2000% over limit

Discharged 21 mg/L against a permitted limit of 1 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Iron, dissolved [as Fe]

950% over limit

Discharged 21 mg/L against a permitted limit of 2 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Chlorine, total residual

7264% over limit

Discharged 0.81 mg/L against a permitted limit of 0.011 mg/L (INST MAX)

DMR, Limited - Numeric Violation

March 31, 2026

Chlorine, total residual

8355% over limit

Discharged 0.93 mg/L against a permitted limit of 0.011 mg/L (INST MAX)

DMR, Limited - Numeric Violation

December 31, 2025

Chlorine, total residual

3718% over limit

Discharged 0.42 mg/L against a permitted limit of 0.011 mg/L (INST MAX)

DMR, Limited - Numeric Violation

September 30, 2025

Chlorine, total residual

1445% over limit

Discharged 0.17 mg/L against a permitted limit of 0.011 mg/L (INST MAX)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (5 months ago)

Last confirmed

September 15, 2026 (4 days ago)