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Of the 10 permits in EPA's SIC 10 in TN, 2 went over a limit between 2025-10-01 and 2026-09-30 (IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia: 1; Solids, total suspended: 1; Zinc, total [as Zn]: 1). 0 are past the expiry date EPA's file holds; 7 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.
All Tennessee permitsAll states
| Facility | Last 12 months | Permit |
|---|---|---|
| Crucible MTN, LLC TN0004227 · major · Lead And Zinc Ores | Over a limit 3×: Solids, total suspended (2×), Zinc, total [as Zn] (1×) | Renewal application due Feb 2, 2028 |
| Crucible ETN, LLC TN0061468 · major · Lead And Zinc Ores | Over a limit 1×: IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia (1×) | Renewal application due Feb 1, 2027 |
| Crucible ETN, LLC TN0001732 · major · Lead And Zinc Ores | No value over a limit | Expires Jan 31, 2029 |
| Crucible ETN, LLC TN0001759 · major · Lead And Zinc Ores | No value over a limit | Renewal application overdue |
| Crucible ETN, LLC TN0027677 · major · Lead And Zinc Ores | No value over a limit | Expires Jun 30, 2029 |
| Crucible MTN, LLC TN0029360 · major · Lead And Zinc Ores | No value over a limit | Renewal application due May 4, 2027 |
| Crucible MTN, LLC TN0064289 · major · Lead And Zinc Ores | No value over a limit | Renewal application due Mar 4, 2027 |
| Crucible Zinc, Inc. TN0029157 · major · Lead And Zinc Ores | No value over a limit; 9 required values not reported | Expires Oct 31, 2030 |
| IperionX Critical Minerals, LLC TN0070711 · Metal Ores | No value over a limit | Renewal application due Mar 4, 2028 |
| Mossy Creek Mining, LLC TN0057029 · Lead And Zinc Ores | No value over a limit | Renewal application due Jan 2, 2028 |
The record is EPA's ICIS-NPDES file of 2026-10-15: values filed against each limit between Oct 1, 2025 and Sep 30, 2026. No reports on file may be EPA's gap, not the facility's.
For programs and AI agents: this screen as JSON at /api/v1/permits?state=TN&sic=10, narrowed with &over_limit=true, ¶meter=phosphorus or &renewal=due; or add https://passage-data.com/mcp as a remote MCP server (tool list_permits). Free, no key. llms.txt
From EPA's ECHO data, not the permit document itself: your permit is the final word. All states