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Mining and Quarrying of Nonmetallic Minerals — NPDES discharge permits in North Carolina

Of the 5 permits in EPA's SIC 14 in NC, 0 went over a limit between 2025-10-01 and 2026-09-30. 5 are past the expiry date EPA's file holds; 0 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.

FacilityLast 12 monthsPermit
Sibelco North America
NC0000175 · Clay And Related Minerals
No value over a limitPermit past the expiry date EPA's file holds
Sibelco North America
NC0000361 · Kaolin And Ball Clay
No value over a limit; 20 required values not reportedPermit past the expiry date EPA's file holds
Sibelco North America
NC0084620 · Miscellaneous Nonmetallic Minerals
No value over a limit; 20 required values not reportedPermit past the expiry date EPA's file holds
The Quartz Corp USA
NC0000353 · Clay And Related Minerals
No value over a limitPermit past the expiry date EPA's file holds
The Quartz Corp USA
NC0000400 · Clay And Related Minerals
No value over a limitPermit past the expiry date EPA's file holds

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=NC&sic=14, narrowed with &over_limit=true, &parameter=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