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Mining and Quarrying of Nonmetallic Minerals — NPDES discharge permits in Missouri

Of the 7 permits in EPA's SIC 14 in MO, 2 went over a limit between 2025-10-01 and 2026-09-30 (Chloride: 1; Nitrogen, ammonia total [as N]: 1; Solids, settleable: 1). 2 are past the expiry date EPA's file holds; 3 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.

FacilityLast 12 monthsPermit
Nestle Purina Petcare Company
MO0101788 · Clay And Related Minerals
Over a limit 9×: Nitrogen, ammonia total [as N] (4×), Solids, total suspended (2×), Solids, settleable (2×)Permit past the expiry date EPA's file holds
Martin Marietta Materials, Inc.
MO0139173 · Crushed And Broken Limestone
Over a limit 4×: Chloride (2×), Sulfate [as S] (2×)Permit past the expiry date EPA's file holds
Mississippi Lime Bonne Terre, LLC
MO0001422 · Crushed And Broken Limestone
No value over a limitExpires Aug 31, 2029
Specialty Granules Inc.
MO0112950 · Crushed And Broken Stone
No value over a limitRenewal application due Nov 1, 2026
THE S-S-S LUMBER COMPANY, INC.
MO0127132 · Construction Sand And Gravel
No value over a limitExpires Mar 31, 2031
Tower Rock Stone Co.
MO0135399 · Crushed And Broken Limestone
No value over a limitRenewal application due Nov 1, 2026
Trager Limestone, L.C.C.
MO0134091 · Crushed And Broken Limestone
No value over a limitRenewal application overdue

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=MO&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