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Vectren Energy Delivery of Ohio

Aluminum Foundries, Yellow Springs, Ohio. NPDES permit OH0040576, in force until Aug 31, 2028. Last 12 months: over a limit 4 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (6 values)
Renewal application due
Mar 4, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 16 reports late

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

Period endingParameterReportedLimitOver by
June 2026Solids, total suspended, daily maximum143≤ 45 mg/L218%
June 2026Solids, total suspended, monthly average143≤ 30 mg/L377%
July 2026Solids, total suspended, daily maximum67.2≤ 45 mg/L49%
July 2026Solids, total suspended, monthly average67.2≤ 30 mg/L124%

Limits in force (12)

ParameterStatisticLimitMonthsOutfall
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 45 mg/Lall year001
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)Mar, Jun, Aug, Dec001
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)Mar, Jun, Aug, Dec001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Zinc, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec002
Zinc, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec002
Copper, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec002
Copper, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec002

How strict are these limits?

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

Same industry: the 56 Primary Metal Industries permits in Ohio.

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/OH0040576 · MCP: https://passage-data.com/mcp