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Rubber and Miscellaneous Plastics Products — NPDES discharge permits in Mississippi

Of the 3 permits in EPA's SIC 30 in MS, 1 went over a limit between 2025-10-01 and 2026-09-30 (Zinc, total recoverable: 1). 0 are past the expiry date EPA's file holds; 2 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.

FacilityLast 12 monthsPermit
WESTLAKE COMPOUNDS LLC, dba WESTLAKE GLOBAL COMPOUNDS, GALLMAN
MS0036986 · Custom Compound Purchased Resins
Over a limit 1×: Zinc, total recoverable (1×)Renewal application due Nov 1, 2026
GRT RIPLEY OPERATIONS LLC
MS0000078 · Fabricated Rubber Products
No value over a limit; 136 required values not reportedRenewal application due Mar 4, 2027
MISSISSIPPI POLYMERS INC
MS0000086 · Unsupported Plastics Film & Sheet
No value over a limitExpires Nov 30, 2029

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=MS&sic=30, 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