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Blast Furnaces And Steel Mills, Butler, Indiana. NPDES permit IN0059021, in force until Dec 31, 2029. Last 12 months: over a limit 10 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| December 2025 | 002 | Toxicity [chronic], Ceriodaphnia dubia, maximum | 2.2 tox chronic | ≤ 1.2 tox chronic | 83% |
| December 2025 | 003 | Toxicity [chronic], Ceriodaphnia dubia, maximum | 5 tox chronic | ≤ 1.2 tox chronic | 317% |
| January 2026 | 002 | Toxicity [chronic], Ceriodaphnia dubia, maximum | 2.2 tox chronic | ≤ 1.1 tox chronic | 100% |
| January 2026 | 003 | Toxicity [chronic], Ceriodaphnia dubia, maximum | 10 tox chronic | ≤ 1.2 tox chronic | 733% |
| January 2026 | 003 | pH, daily maximum | 9.1 SU | ≤ 9 SU | — |
| February 2026 | 003 | pH, daily maximum | 9.1 SU | ≤ 9 SU | — |
| April 2026 | 002 | Zinc, total recoverable, daily maximum | 4.67 lb/d | ≤ 2.4 lb/d | 95% |
| April 2026 | 002 | Zinc, total recoverable, monthly average | 1.678 lb/d | ≤ 1.4 lb/d | 20% |
| June 2026 | 002 | pH, daily maximum | 9.2 SU | ≤ 9 SU | — |
| August 2026 | 002 | pH, daily maximum | 10.5 SU | ≤ 9 SU | — |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 002 |
| Solids, total suspended | monthly average minimum | report only (lb/d) | all year | 002 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 002 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | 002 |
| Oil and grease, hexane extr method | daily maximum | ≤ 15 mg/L | all year | 002 |
| Oil and grease, hexane extr method | monthly average | report only (lb/d) | all year | 002 |
| Oil and grease, hexane extr method | daily maximum | report only (lb/d) | all year | 002 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 002 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 002 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Sulfate, total [as SO4] | monthly average | report only (lb/d) | all year | 002 |
| Sulfate, total [as SO4] | monthly average | report only (lb/d) (alert, not enforceable) | all year | 002 |
| Sulfate, total [as SO4] | daily maximum | report only (lb/d) | all year | 002 |
| Sulfate, total [as SO4] | daily maximum | report only (lb/d) (alert, not enforceable) | all year | 002 |
| Zinc, total recoverable | monthly average | ≤ .22 mg/L | all year | 002 |
| Zinc, total recoverable | monthly average | ≤ .27 mg/L | all year | 002 |
| Zinc, total recoverable | daily maximum | ≤ .39 mg/L | all year | 002 |
| Zinc, total recoverable | daily maximum | ≤ .47 mg/L | all year | 002 |
| Zinc, total recoverable | monthly average | ≤ 2 lb/d | all year | 002 |
| Zinc, total recoverable | monthly average | ≤ 1.4 lb/d | all year | 002 |
| Zinc, total recoverable | daily maximum | ≤ 3.6 lb/d | all year | 002 |
| Zinc, total recoverable | daily maximum | ≤ 2.4 lb/d | all year | 002 |
| Lead, total recoverable | monthly average | report only (mg/L) | all year | 002 |
| Lead, total recoverable | monthly average | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | 002 |
| Lead, total recoverable | daily maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Lead, total recoverable | monthly average | report only (lb/d) | all year | 002 |
| Lead, total recoverable | monthly average | report only (lb/d) (alert, not enforceable) | all year | 002 |
| Lead, total recoverable | daily maximum | report only (lb/d) | all year | 002 |
| Lead, total recoverable | daily maximum | report only (lb/d) (alert, not enforceable) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 002 |
| pH | daily minimum | ≥ 6 SU | all year | 003 |
| pH | daily maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 003 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 003 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 003 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | 003 |
| Oil and grease, hexane extr method | daily maximum | ≤ 15 mg/L | all year | 003 |
| Oil and grease, hexane extr method | monthly average | report only (lb/d) | all year | 003 |
| Oil and grease, hexane extr method | daily maximum | report only (lb/d) | all year | 003 |
| Zinc, total recoverable | monthly average | report only (mg/L) | all year | 003 |
| Zinc, total recoverable | monthly average | report only (mg/L) | all year | 003 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 003 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 003 |
| Zinc, total recoverable | monthly average | report only (lb/d) | all year | 003 |
| Zinc, total recoverable | monthly average | report only (lb/d) | all year | 003 |
| Zinc, total recoverable | daily maximum | report only (lb/d) | all year | 003 |
| Zinc, total recoverable | daily maximum | report only (lb/d) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1 tox acute | Jan, Jul | 003 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1 tox acute | Jan, Jul | 003 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1 tox acute | Feb, Aug | 003 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1 tox acute | Feb, Aug | 003 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 1.2 tox chronic | Jan, Jul | 003 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 1.2 tox chronic | Jan, Jul | 003 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 1.2 tox chronic | Feb, Aug | 003 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 1.2 tox chronic | Feb, Aug | 003 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox acute | Jan, Jul | 003 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox acute | Jan, Jul | 003 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox acute | Feb, Aug | 003 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox acute | Feb, Aug | 003 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1.2 tox chronic | Jan, Jul | 003 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1.2 tox chronic | Jan, Jul | 003 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1.2 tox chronic | Feb, Aug | 003 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1.2 tox chronic | Feb, Aug | 003 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 003 |
| pH | daily minimum | ≥ 6 SU | all year | 005 |
| pH | daily maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 005 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | 005 |
| Oil and grease, hexane extr method | daily maximum | ≤ 15 mg/L | all year | 005 |
| Oil and grease, hexane extr method | monthly average | report only (lb/d) | all year | 005 |
| Oil and grease, hexane extr method | daily maximum | report only (lb/d) | all year | 005 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Dec | 005 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Dec | 005 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Dec | 005 |
| Zinc, total recoverable | monthly average | report only (mg/L) | all year | 005 |
| Zinc, total recoverable | monthly average | report only (mg/L) (alert, not enforceable) | all year | 005 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 005 |
| Zinc, total recoverable | daily maximum | report only (mg/L) (alert, not enforceable) | all year | 005 |
| Zinc, total recoverable | monthly average | report only (lb/d) | all year | 005 |
| Zinc, total recoverable | monthly average | report only (lb/d) (alert, not enforceable) | all year | 005 |
| Zinc, total recoverable | daily maximum | report only (lb/d) | all year | 005 |
| Zinc, total recoverable | daily maximum | report only (lb/d) (alert, not enforceable) | all year | 005 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | Dec | 005 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Dec | 005 |
| Storm water flow | monthly average | report only (MGD) | all year | 005 |
| Storm water flow | daily maximum | report only (MGD) | all year | 005 |
Cited limits by parameter: Indiana's rules and the federal ones.
Same industry: the 54 Primary Metal Industries permits in Indiana.
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Your permit document is the final word. As JSON: /api/v1/permits/IN0059021 · MCP: https://passage-data.com/mcp