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Electric Services, Petersburg, Indiana. NPDES permit IN0004391, in force until Sep 30, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | daily minimum | ≥ 6 SU | Jun, Dec | 003 |
| pH | daily minimum | ≥ 6 SU | Jun, Dec | 003 |
| pH | daily maximum | ≤ 9 SU | Jun, Dec | 003 |
| pH | daily maximum | ≤ 9 SU | Jun, Dec | 003 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Jun, Dec | 003 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Jun, Dec | 003 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | Jun, Dec | 003 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | Jun, Dec | 003 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | Jun, Dec | 003 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | Jun, Dec | 003 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | Jun, Dec | 003 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | Jun, Dec | 003 |
| Iron, total recoverable | monthly average | report only (mg/L) | Jun, Dec | 003 |
| Iron, total recoverable | monthly average | report only (mg/L) | Jun, Dec | 003 |
| Iron, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | 003 |
| Iron, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | 003 |
| Zinc, total recoverable | monthly average | report only (mg/L) | Jun, Dec | 003 |
| Zinc, total recoverable | monthly average | report only (mg/L) | Jun, Dec | 003 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | 003 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | Jun, Dec | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | Jun, Dec | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jun, Dec | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jun, Dec | 003 |
| Flow, total | semi-annual total | report only (Mgal/6mo) | Jun, Dec | 003 |
| Flow, total | semi-annual total | report only (Mgal/6mo) | Jun, Dec | 003 |
| pH | daily minimum | ≥ 6 SU | Jun, Dec | 004 |
| pH | daily minimum | ≥ 6 SU | Jun, Dec | 004 |
| pH | daily maximum | ≤ 9 SU | Jun, Dec | 004 |
| pH | daily maximum | ≤ 9 SU | Jun, Dec | 004 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Jun, Dec | 004 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Jun, Dec | 004 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | Jun, Dec | 004 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | Jun, Dec | 004 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | Jun, Dec | 004 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | Jun, Dec | 004 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | Jun, Dec | 004 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | Jun, Dec | 004 |
| Iron, total recoverable | monthly average | report only (mg/L) | Jun, Dec | 004 |
| Iron, total recoverable | monthly average | report only (mg/L) | Jun, Dec | 004 |
| Iron, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | 004 |
| Iron, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | 004 |
| Zinc, total recoverable | monthly average | report only (mg/L) | Jun, Dec | 004 |
| Zinc, total recoverable | monthly average | report only (mg/L) | Jun, Dec | 004 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | 004 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | Jun, Dec | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | Jun, Dec | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jun, Dec | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jun, Dec | 004 |
| Flow, total | semi-annual total | report only (Mgal/6mo) | Jun, Dec | 004 |
| Flow, total | semi-annual total | report only (Mgal/6mo) | Jun, Dec | 004 |
Cited limits by parameter: Indiana's rules and the federal ones.
Same industry: the 30 Electric Services permits in Indiana.
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Your permit document is the final word. As JSON: /api/v1/permits/IN0004391 · MCP: https://passage-data.com/mcp