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Of the 13 permits in EPA's SIC 14 in TX, 3 went over a limit between 2025-10-01 and 2026-09-30 (Solids, total suspended: 3; pH: 1; Sulfate, total [as SO4]: 1). 3 are past the expiry date EPA's file holds; 4 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.
| Facility | Last 12 months | Permit |
|---|---|---|
| MARTIN MARIETTA MATERIALS SOUTHWEST LLC TX0139483 · Construction Sand And Gravel | Over a limit 4×: pH (2×), Solids, total suspended (2×) | Permit past the expiry date EPA's file holds |
| COVIA CLAY LLC TX0104175 · Kaolin And Ball Clay | Over a limit 3×: Solids, total suspended (2×), Sulfate, total [as SO4] (1×) | Renewal application overdue |
| GMA GARNET (USA) CORP TX0143111 · Industrial Sand | Over a limit 3×: Solids, total suspended (3×) | Renewal application due Dec 8, 2027 |
| BYK USA INC TX0057274 · Clay And Related Minerals | No value over a limit | Expires Aug 6, 2031 |
| BYK USA LLC TX0123358 · Clay And Related Minerals | No value over a limit | Expires Apr 27, 2031 |
| COOPER NATURAL RESOURCES INC. TX0112038 · Potash, Soda, And Borate Minerals | No value over a limit | Permit past the expiry date EPA's file holds |
| COVIA SOLUTIONS LLC TX0001830 · Industrial Sand | No value over a limit | Expires Feb 24, 2031 |
| HEIDELBERG MATERIALS SOUTHWEST LLC TX0000825 · Crushed And Broken Limestone | No value over a limit | Renewal application overdue |
| HUBER CARBONATES, LLC TX0132594 · Crushed And Broken Limestone | No value over a limit | Permit past the expiry date EPA's file holds |
| QUALITY STONE OF MINERAL WELLS LLC TX0129411 · Dimension Stone | No value over a limit | Expires Jan 16, 2030 |
| TEXAS AMRIZE CEMENT INC TX0090425 · Crushed And Broken Limestone | No value over a limit | Renewal application overdue |
| US SILICA COMPANY TX0001368 · Industrial Sand | No value over a limit | Expires Sep 27, 2029 |
| VULCAN CONSTRUCTION MATERIALS LLC TX0132993 · Construction Sand And Gravel | No value over a limit | Expires Jun 6, 2030 |
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=TX&sic=14, 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