NASHVILLE HIGH GRADES
NPDES ID: TNR051323
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 0.207 mg/L against a permitted limit of 0.395 mg/L (DAILY MX)
DMR, Limited - Overdue
Chemical Oxygen Demand [COD]
0% over limit
Discharged 51.5 mg/L against a permitted limit of 120 mg/L (DAILY MX)
DMR, Limited - Overdue
Copper, total [as Cu]
0% over limit
Discharged 0.0121 mg/L against a permitted limit of 0.018 mg/L (DAILY MX)
DMR, Limited - Overdue
Copper, total [as Cu]
0% over limit
Discharged 0.00776 mg/L against a permitted limit of 0.018 mg/L (DAILY MX)
DMR, Limited - Overdue
Chemical Oxygen Demand [COD]
0% over limit
Discharged 51.5 mg/L against a permitted limit of 120 mg/L (DAILY MX)
DMR, Limited - Overdue
Zinc, total [as Zn]
0% over limit
Discharged 0.137 mg/L against a permitted limit of 0.395 mg/L (DAILY MX)
DMR, Limited - Overdue
Lead, total [as Pb]
0% over limit
Discharged 0.00317 mg/L against a permitted limit of 0.156 mg/L (DAILY MX)
DMR, Limited - Overdue
Lead, total [as Pb]
0% over limit
Discharged 0.00327 mg/L against a permitted limit of 0.156 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
39% over limit
Discharged 139 mg/L against a permitted limit of 100 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
29% over limit
Discharged 129 mg/L against a permitted limit of 100 mg/L (DAILY MX)
DMR, Limited - Overdue
Chemical Oxygen Demand [COD]
180% over limit
Discharged 336 mg/L against a permitted limit of 120 mg/L (DAILY MX)
DMR, Limited - Overdue
Zinc, total [as Zn]
0% over limit
Discharged 0.116 mg/L against a permitted limit of 0.395 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 34.9 mg/L against a permitted limit of 100 mg/L (DAILY MX)
DMR, Limited - Overdue
Lead, total [as Pb]
0% over limit
Discharged 0.00131 mg/L against a permitted limit of 0.156 mg/L (DAILY MX)
DMR, Limited - Overdue
Copper, total [as Cu]
0% over limit
Discharged 0.00395 mg/L against a permitted limit of 0.018 mg/L (DAILY MX)
DMR, Limited - Overdue
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 16, 2026 (7 hours ago)