WILL-O-WISP METRO DISTRICT

NPDES ID: COG591193

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: 28 effluent violations, 1 permit schedule violation, 74 reporting violations.

Violations

June 30, 2026

Zinc, potentially dissolved

152% over limit

Discharged 0.068 mg/L against a permitted limit of 0.027 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Zinc, potentially dissolved

240% over limit

Discharged 0.068 mg/L against a permitted limit of 0.02 mg/L (30DA AVG)

DMR, Limited - Numeric Violation

Chloride [as Cl]

334% over limit

Discharged 164.8 mg/L against a permitted limit of 38 mg/L (ROLL AVG)

DMR, Limited - Numeric Violation

Copper, potentially dissolved

8746% over limit

Discharged 0.023 mg/L against a permitted limit of 0.00026 mg/L (ROLL AVG)

DMR, Limited - Numeric Violation

Radium 226 + radium 228, total

193% over limit

Discharged 2.2 pCi/L against a permitted limit of 0.75 pCi/L (ROLL AVG)

DMR, Limited - Numeric Violation

Copper, potentially dissolved

695% over limit

Discharged 0.0167 mg/L against a permitted limit of 0.0021 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (5 months ago)

Last confirmed

September 15, 2026 (4 days ago)