Kopper Glo Mining LLC

NPDES permit TN0069337 · Minor NON-POTW · expired 2025-07-31 · EPA's file as of 2026-09-26

Keep this permit as a site — opens New site at EPA's facility point (36.5275, -83.855833); you set the radius.

These are the last limits EPA's file holds for this permit, from an earlier version of it (version 0 in EPA's file): its current version carries none yet. Read your permit: a renewal can change them.

EPA's record, 2025-09-01 to 2026-08-31

EPA's file shows no filings for this permit in this window. That is a statement about the file, not about the facility.

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among TN permits in EPA's filings — check your permit).

• Outfall 001, form G: files for periods ending in Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
• Outfall 002, form G: files for periods ending in Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec

How strict are these limits?

Each concentration limit against the same limit in comparable permits. Where it appears more than once, its strictest value.

• Selenium, total [as Se], monthly average 1.5 ug/L — stricter than 100% of 33 other minor industrial and other permits nationwide
• Solids, total suspended, monthly average 35 mg/L — stricter than 69% of 431 other minor industrial and other permits in Tennessee; 13% have the same limit
• Solids, settleable, daily maximum .5 mL/L — stricter than 45% of 83 other minor industrial and other permits in Tennessee; 54% have the same limit
• Selenium, total [as Se], daily maximum 20 ug/L — stricter than 41% of 93 other minor industrial and other permits nationwide; 20% have the same limit
• Solids, total suspended, daily maximum 70 mg/L — stricter than 1% of 473 other minor industrial and other permits in Tennessee; 11% have the same limit
• pH, minimum at least 6 SU — stricter than 0% of 351 other minor industrial and other permits in Tennessee; 99% have the same limit
• pH, maximum 9 SU — stricter than 0% of 370 other minor industrial and other permits in Tennessee; 100% have the same limit

Limits in force (64)

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states