HOPKINS SAND & GRAVEL
NPDES ID: MNG490682
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
Violations
December 31, 2025
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (ANNL AVG)
DMR, Monitor Only - Overdue
Iron, total [as Fe]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (ANNL AVG)
DMR, Monitor Only - Overdue
December 31, 2024
Iron, total [as Fe]
0% over limit
Discharged 18.93 mg/L against a permitted limit of 0 mg/L (ANNL AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 356.66 mg/L against a permitted limit of 0 mg/L (ANNL AVG)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)