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Nucor Steel Birmingham Inc

Primary Metal Products, Birmingham, Alabama. NPDES permit AL0003735 expired Feb 28, 2017; its limits still apply. Last 12 months: over a limit once (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form 1 monthly (8 values), outfall 001 form Q quarterly (4 values), outfall 002 form 1 monthly (16 values), outfall 002 form Q quarterly (4 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 32 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
August 2026Zinc, total [as Zn], daily maximum.983≤ .975 lb/d1%

Limits in force (32)

ParameterStatisticLimitMonthsOutfall
pHdaily minimumreport only (SU)all year001
pHdaily maximumreport only (SU)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Cyanide, total [as CN]daily maximumreport only (mg/L)all year001
Magnesium, total [as Mg]daily maximumreport only (mg/L)all year001
Iron, total recoverabledaily maximumreport only (mg/L)all year001
Zinc, total recoverabledaily maximumreport only (mg/L)all year001
Aluminum, total recoverabledaily maximumreport only (mg/L)all year001
Copper, total recoverabledaily maximumreport only (mg/L)all year001
Manganese, total recoverabledaily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year002
pHdaily minimum≥ 6 SUall year002
pHdaily maximum≤ 8.5 SUall year002
Solids, total suspendedmonthly average≤ 448 lb/dall year002
Solids, total suspendeddaily maximum≤ 852 lb/dall year002
Oil & Greasemonthly average≤ 29.8 lb/dall year002
Oil & Greasedaily maximum≤ 361 lb/dall year002
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year002
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002
Magnesium, total [as Mg]daily maximumreport only (mg/L)all year002
Iron, total recoverabledaily maximumreport only (mg/L)all year002
Lead, total [as Pb]monthly average≤ .216 lb/dall year002
Lead, total [as Pb]daily maximum≤ .649 lb/dall year002
Zinc, total [as Zn]monthly average≤ .325 lb/dall year002
Zinc, total [as Zn]daily maximum≤ .975 lb/dall year002
Aluminum, total recoverabledaily maximumreport only (mg/L)all year002
Manganese, total recoverabledaily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002

How strict are these limits?

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/AL0003735 · MCP: https://passage-data.com/mcp