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National Copper LLC

Copper Rolling And Drawing, Huntsville, Alabama. NPDES permit AL0029483, in force until Sep 30, 2030. Last 12 months: over a limit 4 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 002 form 1 monthly (20 values), outfall 001 form S twice a year
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 14 reports late

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

Period endingParameterReportedLimitOver by
June 2026Copper, total recoverable, daily maximum.104≤ .034 mg/L206%
June 2026Copper, total recoverable, monthly average.104≤ .023 mg/L352%
July 2026Copper, total recoverable, daily maximum.888≤ .034 mg/L2512%
July 2026Copper, total recoverable, monthly average.888≤ .023 mg/L3761%

Limits in force (36)

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
Nickel, total recoverabledaily maximumreport only (mg/L)all year001
Zinc, total recoverabledaily maximumreport only (mg/L)all year001
Lead, total recoverabledaily maximumreport only (mg/L)all year001
Chromium, total recoverabledaily maximumreport only (mg/L)all year001
Copper, total recoverabledaily maximumreport only (mg/L)all year001
Ethylbenzenedaily maximumreport only (mg/L)all year001
Methylene chloridedaily maximumreport only (mg/L)all year001
1,1,1-Trichloroethanedaily maximumreport only (mg/L)all year001
Trichloroethylenedaily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year001
Xylene [mix of m+o+p]daily maximumreport only (mg/L)all year001
Temperature, water deg. fahrenheitdaily maximum≤ 86 deg Fall year002
pHdaily minimum≥ 6 SUall year002
pHdaily maximum≤ 8.5 SUall year002
Nickel, total recoverablemonthly averagereport only (mg/L)all year002
Nickel, total recoverabledaily maximumreport only (mg/L)all year002
Zinc, total recoverablemonthly averagereport only (mg/L)all year002
Zinc, total recoverabledaily maximumreport only (mg/L)all year002
Lead, total recoverablemonthly average≤ .005 mg/Lall year002
Lead, total recoverabledaily maximum≤ .138 mg/Lall year002
Chromium, total recoverablemonthly averagereport only (mg/L)all year002
Chromium, total recoverabledaily maximumreport only (mg/L)all year002
Copper, total recoverablemonthly average≤ .023 mg/Lall year002
Copper, total recoverabledaily maximum≤ .034 mg/Lall year002
Ethylbenzenedaily maximumreport only (mg/L)all year002
Methylene chloridedaily maximumreport only (mg/L)all year002
1,1,1-Trichloroethanedaily maximumreport only (mg/L)all year002
Trichloroethylenedaily maximumreport only (ug/L)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year002
Xylene [mix of m+o+p]daily maximumreport only (mg/L)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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Your permit document is the final word. As JSON: /api/v1/permits/AL0029483 · MCP: https://passage-data.com/mcp