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NLMK - Indiana

Cold Finishing Of Steel Shapes, Portage, Indiana. NPDES permit IN0059714, in force until Apr 30, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Renewal application due
Nov 2, 2027 · 180 days before expiry; your permit may set another date
Last report on file
December 2025
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 1 report late

Limits in force (14)

ParameterStatisticLimitMonths
pHdaily maximumreport only (SU)Dec
pHdaily maximumreport only (SU)Dec
Solids, total suspendeddaily maximumreport only (mg/L)Dec
Solids, total suspendeddaily maximumreport only (mg/L)Dec
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)Dec
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)Dec
Iron, total recoverabledaily maximumreport only (mg/L)Dec
Iron, total recoverabledaily maximumreport only (mg/L)Dec
Zinc, total recoverabledaily maximumreport only (mg/L)Dec
Zinc, total recoverabledaily maximumreport only (mg/L)Dec
Storm water flowdaily maximumreport only (MGD)Dec
Storm water flowdaily maximumreport only (MGD)Dec
Flow, totalannual totalreport only (Mgal/yr)Dec
Flow, totalannual totalreport only (Mgal/yr)Dec

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/IN0059714 · MCP: https://passage-data.com/mcp