TRAPPER MINE

NPDES ID: CO0032115

S — SNC: Compliance schedule violation

The facility missed a deadline in its compliance schedule by more than 90 days.

This quarter: 1 effluent violation.

Violations

May 31, 2026

Solids, total suspended

20% over limit

Discharged 42 mg/L against a permitted limit of 35 mg/L (30DA AVG)

DMR, Limited - Numeric Violation

February 28, 2025

Iron, total recoverable

40% over limit

Discharged 1.40000007 mg/L against a permitted limit of 1.00000005 mg/L (30DA AVG)

DMR, Limited - Numeric Violation

Iron, total recoverable

100% over limit

Discharged 2.00000009 mg/L against a permitted limit of 1.00000005 mg/L (30DA AVG)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (3 months ago)

Last confirmed

July 13, 2026 (23 days ago)