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Of the 7 permits in EPA's SIC 20 in SD, 1 went over a limit between 2025-10-01 and 2026-09-30 (Alkalinity, total [as CaCO3]: 1; Conductivity: 1; Toxicity [acute], Pimephales promelas [Fathead Minnow]: 1). 3 are past the expiry date EPA's file holds; 1 has a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.
All South Dakota permitsAll states
| Facility | Last 12 months | Permit |
|---|---|---|
| Agropur (Lake Norden Facility) SD0025411 · Cheese, Natural And Processed | Over a limit 24×: Conductivity (9×), Alkalinity, total [as CaCO3] (9×), Toxicity [acute], Pimephales promelas [Fathead Minnow] (2×) | Expires Jun 30, 2031 |
| East Dakotas Renewable Energy, LLC SD0028649 · Distilled And Blended Liquors | No value over a limit | Renewal application overdue |
| Empirical Technology SD0028606 · Meat Packing Plants | No value over a limit | Expires Apr 30, 2031 |
| Lanast LLC Dba Arctic Ice SD0027588 · Manufactured Ice for sale | No value over a limit | Expires May 31, 2031 |
| SD Soybean Processors - Miller Facility SD0028644 · Soybean Oil Mills | No value over a limit | Permit past the expiry date EPA's file holds |
| Smithfield Foods SD0000078 · major · Meat Packing Plants | No value over a limit | Permit past the expiry date EPA's file holds |
| Valley Queen Cheese, Inc SD0027987 · Cheese, Natural And Processed | No value over a limit; 2 required values not reported | 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=SD&sic=20, 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