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2 plants already have a new or tighter limit for Manganese, total recoverable in their permit, taking effect between Oct 13, 2027 and Jun 1, 2028 (4 limits). 1 of them 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 |
|---|---|---|---|---|
| State of California Department of Parks and Recreation · CA0085332 · CA Industrial | monthly average 72 ug/L, tighter | Oct 13, 2027 | 1105 ug/L (4 values) | 15.3× |
| State of California Department of Parks and Recreation · CA0085332 · CA Industrial | daily maximum 130 ug/L, tighter | Oct 13, 2027 | 1104 ug/L (4 values) | 8.5× |
| Ipalco - Petersburg Gen Station · IN0002887 · IN Industrial, major · design flow 340 MGD | monthly average 3.9 mg/L, new | Jun 1, 2028 | 0.247 mg/L (11 values) | 0.0633× |
| Ipalco - Petersburg Gen Station · IN0002887 · IN Industrial, major · design flow 340 MGD | daily maximum 6.7 mg/L, new | Jun 1, 2028 | 0.254 mg/L (11 values) | 0.0379× |
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