SLINGER WASTEWATER TREATMENT FACILITY

NPDES ID: WI0020290

D — SNC: Discharge monitoring report not received

The facility didn't submit its required discharge monitoring report.

Violations

March 31, 2026

Chloride [as Cl]

9% over limit

Discharged 602.25 mg/L against a permitted limit of 555 mg/L (WKLY AVG)

DMR, Limited - Numeric Violation

January 31, 2026

Chloride [as Cl]

10% over limit

Discharged 608.25 mg/L against a permitted limit of 555 mg/L (WKLY AVG)

DMR, Limited - Numeric Violation

December 31, 2025

Chloride [as Cl]

19% over limit

Discharged 659 mg/L against a permitted limit of 555 mg/L (WKLY AVG)

DMR, Limited - Numeric Violation

November 30, 2025

Chloride [as Cl]

4% over limit

Discharged 577.5 mg/L against a permitted limit of 555 mg/L (WKLY AVG)

DMR, Limited - Numeric Violation

May 31, 2025

Solids, total suspended

0% over limit

Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)

DMR, Monitor Only - Overdue

Flow, in conduit or thru treatment plant

0% over limit

Discharged 0 MGD against a permitted limit of 0 MGD (MO MAX)

DMR, Monitor Only - Overdue

First flagged

April 14, 2026 (5 months ago)

Last confirmed

September 15, 2026 (5 days ago)