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Of the 7 permits in EPA's SIC 4911 in AZ, 3 went over a limit between 2025-10-01 and 2026-09-30 (BOD, 5-day, 20 deg. C: 1; BOD, 5-day, percent removal: 1; Nitrogen, ammonia total [as N]: 1). 0 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.
| Facility | Last 12 months | Permit |
|---|---|---|
| Usdoi - Lower Colorado AZ0025160 · Electric Services | Over a limit 9×: BOD, 5-day, percent removal (2×), BOD, 5-day, 20 deg. C (2×), Nitrogen, ammonia total [as N] (2×) | Expires Sep 18, 2029 |
| Salt River Project (Srp) AZ0023531 · major · Electric Services | Over a limit 1×: pH (1×) | Renewal application due Dec 8, 2027 |
| Srp-Kyrene Generating Station AZ0024791 · major · Electric Services | Over a limit 1×: Solids, total suspended (1×) | Expires Nov 27, 2028 |
| Srp - Santan Generating Station AZ0023558 · major · Electric Services | No value over a limit | Expires Aug 12, 2029 |
| Tucson Electric Power Company AZ0024821 · Electric Services | No value over a limit | Expires Apr 21, 2029 |
| Usdoi Br -Glen Canyon Dam & Power Plant AZ0026182 · Electric Services | No value over a limit | Renewal application due Dec 4, 2026 |
| Usdoi Br -Glen Canyon Dam & Power Plant AZ0026280 · Electric Services | No value over a limit | Renewal application due Nov 6, 2026 |
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=AZ&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