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Of the 11 permits in EPA's SIC 28 in SD, 2 went over a limit between 2025-10-01 and 2026-09-30 (Oxygen, dissolved [DO]: 1; Toxicity [chronic], Ceriodaphnia dubia: 1). 10 are past the expiry date EPA's file holds; 0 have 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 |
|---|---|---|
| Dakota Ethanol, LLC SD0027847 · Industrial Organic Chemicals | Over a limit 2×: Oxygen, dissolved [DO] (2×) | Permit past the expiry date EPA's file holds |
| Aberdeen Energy (Glaicial Lakes Energy - Mina) SD0028509 · Industrial Organic Chemicals | Over a limit 1×: Toxicity [chronic], Ceriodaphnia dubia (1×) | Permit past the expiry date EPA's file holds |
| Hub City Energy SD0026816 · Industrial Organic Chemicals | No value over a limit | Permit past the expiry date EPA's file holds |
| NuGen Energy, LLC SD0028380 · Industrial Organic Chemicals | No value over a limit | Permit past the expiry date EPA's file holds |
| Poet Biorefining - Chancellor SD0027901 · Industrial Organic Chemicals | No value over a limit | Permit past the expiry date EPA's file holds |
| Poet Biorefining - Groton SD0027910 · Industrial Organic Chemicals | No value over a limit | Permit past the expiry date EPA's file holds |
| Poet Biorefining - Hudson SD0027944 · Industrial Organic Chemicals | No value over a limit | Expires May 31, 2031 |
| Poet Biorefining - Mitchell SD0028240 · Industrial Organic Chemicals | No value over a limit | Permit past the expiry date EPA's file holds |
| Red River Energy, LLC SD0027855 · Industrial Organic Chemicals | No value over a limit | Permit past the expiry date EPA's file holds |
| Redfield Energy LLC SD0028193 · Industrial Organic Chemicals | No value over a limit | Permit past the expiry date EPA's file holds |
| Valero Renewable Fuels Company, LLC SD0027898 · Industrial Organic Chemicals | 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=SD&sic=28, 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