Kopper Glo Mining, LLC

NPDES permit TN0069671 · Minor NON-POTW · expired 2024-09-30 · EPA's file as of 2026-09-26

Keep this permit as a site — opens New site at EPA's facility point (36.54056, -83.89944); you set the radius.

Check this month's numbers before you file

Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

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 T (Whole Effluent Toxicity): files for periods ending in Dec
Outfall SW1, form A (Annual Stormwater): files for periods ending in 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.

IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia, minimum at least 100 % — stricter than 71% of 42 other minor industrial and other permits nationwide; 29% have the same limit

3 other limits: fewer than 20 comparable permits.

Limits in force (8)

Outfall	Parameter	Statistic	Limit	Months
001	LC50 Static 48Hr Acute Ceriodaphnia dubia	minimum	>= 100 %	all year
001	LC50 Static 48Hr Acute Pimephales promelas	minimum	>= 100 %	all year
001	IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia	minimum	>= 100 %	all year
001	IC25 Static Renewal 7 Day Chronic Chrpimephales	minimum	>= 100 %	all year
SW1	pH	minimum	>= 5 SU (alert)	all year
SW1	pH	maximum	<= 9 SU (alert)	all year
SW1	Solids, total suspended	maximum	<= 150 mg/L (alert)	all year
SW1	Oil & Grease	maximum	<= 15 mg/L (alert)	all year

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