VAN 4 SHAFT MONOGRAM MESA
NPDES ID: COR040300
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
Violations
December 31, 2025
Zinc, total [as Zn]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (QRTR MAX)
DMR, Monitor Only - Overdue
Radium 226 + radium 228, total
0% over limit
Discharged 0 pCi/L against a permitted limit of 0 pCi/L (QRTR MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 0 SU (MINIMUM)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (QRTR MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 0 SU (MAXIMUM)
DMR, Monitor Only - Overdue
Arsenic, total [as As]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (QRTR MAX)
DMR, Monitor Only - Overdue
Uranium, total
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (QRTR MAX)
DMR, Monitor Only - Overdue
June 30, 2025
Zinc, total [as Zn]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (QRTR MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 0 SU (MAXIMUM)
DMR, Monitor Only - Overdue
Arsenic, total [as As]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (QRTR MAX)
DMR, Monitor Only - Overdue
Radium 226 + radium 228, total
0% over limit
Discharged 0 pCi/L against a permitted limit of 0 pCi/L (QRTR MAX)
DMR, Monitor Only - Overdue
Uranium, total
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (QRTR MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 0 SU (MINIMUM)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (QRTR MAX)
DMR, Monitor Only - Overdue
December 31, 2024
Radium 226 + radium 228, total
0% over limit
Discharged 0 pCi/L against a permitted limit of 0 pCi/L (QRTR MAX)
DMR, Monitor Only - Overdue
Arsenic, total [as As]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (QRTR MAX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (QRTR MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 0 SU (MINIMUM)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 0 SU (MAXIMUM)
DMR, Monitor Only - Overdue
Uranium, total
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (QRTR MAX)
DMR, Monitor Only - Overdue
Zinc, total [as Zn]
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 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)