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Alcoa Warrick Power Plant - Y Pit

Aluminum Sheet, Plate, And Foil, Newburgh, Indiana. NPDES permit IN0064905, in force until Aug 31, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form SM monthly (4 values), outfall 002 form SM monthly (6 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

Limits in force (10)

ParameterStatisticLimitMonthsOutfall
Solids, total suspendedmonthly average≤ 35 mg/Lall year001
Solids, total suspendeddaily maximum≤ 70 mg/Lall year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
Solids, total suspendedmonthly average≤ 35 mg/Lall year002
Solids, total suspendeddaily maximum≤ 70 mg/Lall year002
Selenium, total recoverabledaily maximumreport only (mg/L)all year002
Boron, total recoverabledaily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Flow, totalmonthly totalreport only (Mgal/mo)all year002

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

Same industry: the 54 Primary Metal Industries permits in Indiana.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IN0064905 · MCP: https://passage-data.com/mcp