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Blast Furnaces And Steel Mills, major discharger, Birmingham, Alabama. NPDES permit AL0003247 expired Nov 30, 2014; its limits still apply. Last 12 months: over a limit 6 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Nitrogen, Kjeldahl, total [as N], daily maximum | 3.84 | ≤ 3.74 mg/L | 3% |
| October 2025 | Nitrogen, Kjeldahl, total [as N], monthly average | 3.05 | ≤ 2.49 mg/L | 22% |
| November 2025 | Nitrogen, Kjeldahl, total [as N], monthly average | 2.72 | ≤ 2.49 mg/L | 9% |
| May 2026 | Nitrogen, Kjeldahl, total [as N], daily maximum | 4.37 | ≤ 3.74 mg/L | 17% |
| May 2026 | Nitrogen, Kjeldahl, total [as N], monthly average | 2.77 | ≤ 2.49 mg/L | 11% |
| June 2026 | Nitrogen, Kjeldahl, total [as N], monthly average | 2.61 | ≤ 2.49 mg/L | 5% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 8.5 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 713 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 1215 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.1 mg/L | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .63 mg/L | May–Nov | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3.2 mg/L | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .95 mg/L | May–Nov | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 8.4 mg/L | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 2.49 mg/L | May–Nov | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | ≤ 12.6 mg/L | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | ≤ 3.74 mg/L | May–Nov | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 117 lb/d | May–Nov | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 394 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | ≤ 175.5 lb/d | May–Nov | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | ≤ 591 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Cyanide, total [as CN] | monthly average | report only (mg/L) | all year | 001 |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | all year | 001 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year | 001 |
| Oil and grease | monthly average | ≤ 10 mg/L | all year | 001 |
| Oil and grease | daily maximum | ≤ 15 mg/L | all year | 001 |
| Benzo[a]pyrene | monthly average | ≤ .0408 ug/L | all year | 001 |
| Benzo[a]pyrene | daily maximum | ≤ .0816 ug/L | 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 |
| Cyanide, free available | monthly average | ≤ .0052 mg/L | all year | 001 |
| Cyanide, free available | daily maximum | ≤ .022 mg/L | 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 (mg/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 5.41 mg/L | May–Nov | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 14 mg/L | Jan, Feb, Mar, Apr, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 8.11 mg/L | May–Nov | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 21 mg/L | Jan, Feb, Mar, Apr, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 254 lb/d | May–Nov | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 657.4 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 381 lb/d | May–Nov | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 986.1 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 01B |
| pH | daily minimum | ≥ 6 SU | all year | 01B |
| pH | daily minimum | ≥ 6 SU | all year | 01B |
| pH | daily maximum | ≤ 9 SU | all year | 01B |
| pH | daily maximum | ≤ 9 SU | all year | 01B |
| pH | daily maximum | ≤ 9 SU | all year | 01B |
| Solids, total suspended | monthly average | ≤ 410.1 lb/d | all year | 01B |
| Solids, total suspended | monthly average | ≤ 411.8 lb/d | all year | 01B |
| Solids, total suspended | monthly average | ≤ 415.4 lb/d | all year | 01B |
| Solids, total suspended | daily maximum | ≤ 793.4 lb/d | all year | 01B |
| Solids, total suspended | daily maximum | ≤ 797.4 lb/d | all year | 01B |
| Solids, total suspended | daily maximum | ≤ 806.4 lb/d | all year | 01B |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 6.53 lb/d | all year | 01B |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 6.8 lb/d | all year | 01B |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 7.3 lb/d | all year | 01B |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.47 lb/d | all year | 01B |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.8 lb/d | all year | 01B |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.6 lb/d | all year | 01B |
| Cyanide, total [as CN] | monthly average | ≤ 6.72 lb/d | all year | 01B |
| Cyanide, total [as CN] | monthly average | ≤ 6.96 lb/d | all year | 01B |
| Cyanide, total [as CN] | monthly average | ≤ 7.5 lb/d | all year | 01B |
| Cyanide, total [as CN] | daily maximum | ≤ 9.6 lb/d | all year | 01B |
| Cyanide, total [as CN] | daily maximum | ≤ 9.94 lb/d | all year | 01B |
| Cyanide, total [as CN] | daily maximum | ≤ 10.7 lb/d | all year | 01B |
| Oil and grease | monthly average | ≤ 34.82 lb/d | all year | 01B |
| Oil and grease | monthly average | ≤ 35.3 lb/d | all year | 01B |
| Oil and grease | monthly average | ≤ 36.2 lb/d | all year | 01B |
| Oil and grease | daily maximum | ≤ 103.34 lb/d | all year | 01B |
| Oil and grease | daily maximum | ≤ 104.1 lb/d | all year | 01B |
| Oil and grease | daily maximum | ≤ 105.9 lb/d | all year | 01B |
| Chlorobenzene | daily maximum | report only (mg/L) | all year | 01B |
| 1,2-Dichlorobenzene | daily maximum | report only (mg/L) | all year | 01B |
| 1,2,4-Trichlorobenzene | daily maximum | report only (mg/L) | all year | 01B |
| 1,3-Dichlorobenzene | daily maximum | report only (mg/L) | all year | 01B |
| 1,4-Dichlorobenzene | daily maximum | report only (mg/L) | all year | 01B |
| Phenols | monthly average | ≤ .08 lb/d | all year | 01B |
| Phenols | monthly average | ≤ .08 lb/d | all year | 01B |
| Phenols | monthly average | ≤ .09 lb/d | all year | 01B |
| Phenols | daily maximum | ≤ .12 lb/d | all year | 01B |
| Phenols | daily maximum | ≤ .13 lb/d | all year | 01B |
| Phenols | daily maximum | ≤ .14 lb/d | all year | 01B |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 01B |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 01B |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 01B |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 01B |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 01B |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 01B |
| Benzo[a]pyrene | monthly average | ≤ .02 lb/d | all year | 1B1 |
| Benzo[a]pyrene | daily maximum | ≤ .036 lb/d | all year | 1B1 |
| Naphthalene | monthly average | ≤ .02 lb/d | all year | 1B1 |
| Naphthalene | daily maximum | ≤ .036 lb/d | all year | 1B1 |
| Benzo[a]pyrene | monthly average | ≤ .021 lb/d | all year | 1B2 |
| Benzo[a]pyrene | daily maximum | ≤ .037 lb/d | all year | 1B2 |
| Naphthalene | monthly average | ≤ .021 lb/d | all year | 1B2 |
| Naphthalene | daily maximum | ≤ .037 lb/d | all year | 1B2 |
| Benzo[a]pyrene | monthly average | ≤ .02 lb/d | all year | 1B3 |
| Benzo[a]pyrene | daily maximum | ≤ .04 lb/d | all year | 1B3 |
| Naphthalene | monthly average | ≤ .02 lb/d | all year | 1B3 |
| Naphthalene | daily maximum | ≤ .04 lb/d | all year | 1B3 |
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/AL0003247 · MCP: https://passage-data.com/mcp