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Freeport-Mcmoran Miami Inc.

Copper Ores, Globe, Arizona. NPDES permit AZ0024350, in force until Apr 16, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 30 days after each period: form A monthly (12 values), form Y yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (18)

ParameterStatisticLimitMonths
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Solids, total suspendeddaily maximum≤ 30 mg/Lall year
Cobalt, total [as Co]monthly average≤ 42 ug/Lall year
Cobalt, total [as Co]daily maximum≤ 706 ug/Lall year
Aluminum, total recoverablemonthly average≤ 243 ug/Lall year
Aluminum, total recoverabledaily maximum≤ 991 ug/Lall year
Manganese, total recoverablemonthly average≤ 3391 ug/Lall year
Manganese, total recoverabledaily maximum≤ 8798 ug/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
TU Static Renewal 48Hr Acute Daphnia magnamonthly medianreport only (tox chronic)all year
TU Static Renewal 48Hr Acute Daphnia magnadaily maximumreport only (tox chronic)all year
Static 7Day Chronic Pimephales Promelasmonthly medianreport only (tox chronic)all year
Static 7Day Chronic Pimephales Promelasdaily maximumreport only (tox chronic)all year
TU Static Renewal 7-Day Chronic Ceriodaphnia dubiamonthly medianreport only (tox chronic)all year
TU Static Renewal 7-Day Chronic Ceriodaphnia dubiadaily maximumreport only (tox chronic)all year

How strict are these limits?

Cited limits by parameter: Arizona's rules and the federal ones.

Same industry: the 8 Metal Mining permits in Arizona.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/AZ0024350 · MCP: https://passage-data.com/mcp