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1 plant already has a new or tighter limit for Boron, total recoverable in its permit, taking effect Jun 1, 2028 (4 limits). It reported a median above that limit between Oct 1, 2025 and Sep 30, 2026. EPA's file of Oct 16, 2026.
| Plant | New limit | Effective | Median, last 12 months | × limit |
|---|---|---|---|---|
| Ipalco - Petersburg Gen Station · IN0002887 · IN Industrial, major · design flow 340 MGD | monthly average 7.3 mg/L, new | Jun 1, 2028 | 9.32 mg/L (11 values) | 1.28× |
| Ipalco - Petersburg Gen Station · IN0002887 · IN Industrial, major · design flow 340 MGD | daily maximum 13 mg/L, new | Jun 1, 2028 | 13.2 mg/L (11 values) | 1.02× |
| Ipalco - Petersburg Gen Station · IN0002887 · IN Industrial, major · design flow 340 MGD | monthly average 7.3 mg/L, tighter | Jun 1, 2028 | 3.57 mg/L (11 values) | 0.489× |
| Ipalco - Petersburg Gen Station · IN0002887 · IN Industrial, major · design flow 340 MGD | daily maximum 13 mg/L, tighter | Jun 1, 2028 | 4.21 mg/L (11 values) | 0.324× |
New: a limit on something the outfall was never limited on. Tighter: lower than the limit in force. Median: the plant's own reports, Oct 1, 2025 to Sep 30, 2026; none where most were below detection.
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Read the permit before relying on a value. Source: EPA ECHO, Oct 16, 2026. As JSON: /api/v1/permits?state=OH&upcoming=true · MCP: https://passage-data.com/mcp