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Charter Dura-Bar Inc

Gray And Ductile Iron Foundries, Woodstock, Illinois. NPDES permit IL0080079, in force until Feb 28, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form 0 monthly (3 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 12 reports late

Limits in force (3)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitmonthly maximumreport only (deg F)all 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

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

Same industry: the 22 Primary Metal Industries permits in Illinois.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IL0080079 · MCP: https://passage-data.com/mcp