OURAY SILVER MINE
NPDES ID: COR040289
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
This quarter: 21 reporting violations.
Violations
March 31, 2026
Mercury, total [as Hg]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0014 mg/L (QRTR MAX)
DMR, Limited - Overdue
Beryllium, total [as Be]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.13 mg/L (QRTR MAX)
DMR, Limited - Overdue
Copper, total [as Cu]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0285 mg/L (QRTR MAX)
DMR, Limited - Overdue
Selenium, total [as Se]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.005 mg/L (QRTR MAX)
DMR, Limited - Overdue
Zinc, total [as Zn]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.23 mg/L (QRTR MAX)
DMR, Limited - Overdue
Iron, dissolved [as Fe]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (QRTR MAX)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (5 days ago)