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Of the 28 permits in EPA's SIC 4911 in MO, 8 went over a limit between 2025-10-01 and 2026-09-30 (pH: 3; Solids, total suspended: 2; Chlorine, free available: 1). 14 are past the expiry date EPA's file holds; 11 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.
All Missouri permitsAll states
| Facility | Last 12 months | Permit |
|---|---|---|
| Associated Electric Cooperative, Inc. MO0121827 · major · Electric Services | Over a limit 3×: Solids, total suspended (3×) | Expires Jul 31, 2030 |
| Ameren Missouri MO0000353 · major · Electric Services | Over a limit 2×: E. coli (2×) | Permit past the expiry date EPA's file holds |
| The Empire District Electric Company MO0126713 · major · Electric Services | Over a limit 2×: Chlorine, free available (2×) | Expires Jun 30, 2030 |
| ASSOCIATED ELECTRIC COOP. MO0001171 · major · Electric Services | Over a limit 1×: Solids, total suspended (1×) | Permit past the expiry date EPA's file holds |
| Associated Electric Cooperative, Inc MO0126560 · Electric Services | Over a limit 1×: pH (1×) | Renewal application due Jan 1, 2027 |
| Associated Electric Cooperative, Inc. MO0097675 · major · Electric Services | Over a limit 1×: pH (1×) | Renewal application due May 4, 2027 |
| Evergy, Inc. MO0004855 · major · Electric Services | Over a limit 1×: pH (1×) | Renewal application overdue |
| Union Electric Company d/b/a Ameren MO MO0004812 · major · Electric Services | Over a limit 1×: Thermal Discharge, ratio (1×) | Renewal application overdue |
| Ameren Missouri MO0004821 · Electric Services | No value over a limit | Renewal application due Jan 1, 2027 |
| Ameren Missouri MO0137642 · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| Ameren-Missouri MO0000361 · major · Electric Services | No value over a limit | Expires May 31, 2029 |
| Associated Electric Cooperative, Inc. MO0122963 · Electric Services | No value over a limit | Renewal application due Mar 4, 2028 |
| Associated Electric Cooperative, Inc. MO0123447 · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| Chamois LLC MO0004766 · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| Dogwood Power Management, LLC MO0124940 · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| EMPIRE DIST ELECTRIC CO MO0095362 · Electric Services | No value over a limit | Renewal application overdue |
| Evergy, INC. MO0082996 · major · Electric Services | No value over a limit | Renewal application due Oct 3, 2027 |
| Evergy, Inc. MO0004871 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| Evergy, Inc. MO0004898 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| Evergy, Inc. MO0131857 · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| Independence Power and Light MO0115924 · Electric Services | No value over a limit | Renewal application overdue |
| Missouri City Acquisition, LLC MO0004588 · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| Sikeston Board of Municipal Utilities MO0095575 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| The Empire District Electric Company MO0116874 · Electric Services | No value over a limit | Renewal application due Nov 2, 2027 |
| Union Electric Co. dba Ameren Missouri MO0127710 · Electric Services | No value over a limit | Renewal application overdue |
| Union Electric Company d/b/a Ameren MO MO0000043 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| Union Electric Company d/b/a Ameren MO MO0098001 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| Union Electric d/b/a Ameren Missouri MO0001082 · Electric Services | No value over a limit | Permit 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=MO&sic=4911, 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