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Blast Furnaces And Steel Mills, major discharger, Birmingham, Alabama. NPDES permit AL0003417 expired Mar 31, 2014; its limits still apply. Last 12 months: over a limit once (last February 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| February 2026 | Cyanide, free available, monthly average | .222 | ≤ .145 lb/d | 53% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 6 mg/L | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 342 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 513 lb/d | all year | 001 |
| Oil & Grease | monthly average | ≤ 25 lb/d | all year | 001 |
| Oil & Grease | daily maximum | ≤ 37.5 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 33.1 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 33 lb/d | May–Nov | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 52.4 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 49.5 lb/d | May–Nov | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 66 lb/d | May–Nov | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 232 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 232 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 66 lb/d | May–Nov | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | ≤ 99 lb/d | May–Nov | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | ≤ 348 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | ≤ 348 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | ≤ 99 lb/d | May–Nov | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (lb/d) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 001 |
| Cyanide, total [as CN] | monthly average | ≤ 18.27 lb/d | all year | 001 |
| Cyanide, total [as CN] | daily maximum | ≤ 26.11 lb/d | all year | 001 |
| Iron, total [as Fe] | monthly average | ≤ 7.5 lb/d | all year | 001 |
| Iron, total [as Fe] | daily maximum | ≤ 15 lb/d | all year | 001 |
| Manganese, total [as Mn] | monthly average | ≤ 5 lb/d | all year | 001 |
| Manganese, total [as Mn] | daily maximum | ≤ 10 lb/d | all year | 001 |
| Benzo[a]pyrene | monthly average | ≤ .0012 lb/d | all year | 001 |
| Benzo[a]pyrene | daily maximum | ≤ .0024 lb/d | all year | 001 |
| Naphthalene | monthly average | ≤ .15 lb/d | all year | 001 |
| Naphthalene | daily maximum | ≤ .15 lb/d | all year | 001 |
| Phenols | monthly average | ≤ .17 lb/d | all year | 001 |
| Phenols | daily maximum | ≤ .3 lb/d | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Cyanide, free available | monthly average | ≤ .145 lb/d | all year | 001 |
| Cyanide, free available | daily maximum | ≤ .475 lb/d | all year | 001 |
| Toxicity [chronic], Ceriodaphnia dubia | daily maximum | ≤ 0 pass=0;fail=1 | all year | 001 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | daily maximum | ≤ 0 pass=0;fail=1 | all year | 001 |
| Solids, total dissolved | daily maximum | report only (lb/d) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 56 lb/d | May–Nov | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 213 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 213 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 56 lb/d | May–Nov | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 84 lb/d | May–Nov | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 320 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 320 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 84 lb/d | May–Nov | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily maximum | ≤ 8.5 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 002 |
| Oil & Grease | monthly average | ≤ 10 mg/L | all year | 002 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 002 |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | all year | 002 |
| Cyanide, total [as CN] | daily maximum | report only (lb/d) | all year | 002 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 002 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 002 |
| Manganese, total [as Mn] | monthly average | ≤ 2 mg/L | all year | 002 |
| Manganese, total [as Mn] | daily maximum | ≤ 4 mg/L | all year | 002 |
| Benzene | daily maximum | report only (lb/d) | all year | 002 |
| Benzo[a]pyrene | daily maximum | report only (lb/d) | all year | 002 |
| Naphthalene | daily maximum | report only (lb/d) | all year | 002 |
| Phenols | daily maximum | report only (lb/d) | 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 |
Cited limits by parameter: Alabama's rules and the federal ones.
Same industry: the 23 Primary Metal Industries permits in Alabama.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/AL0003417 · MCP: https://passage-data.com/mcp