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Ken Forging, Inc.

Iron And Steel Forgings, Jefferson, Ohio. NPDES permit OH0131296, in force until Dec 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (22 values), outfall 002 form A monthly (6 values), outfall 003 form A monthly (6 values), outfall 004 form A monthly (6 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 25 reports late

Limits in force (46)

ParameterStatisticLimitMonthsOutfall
Flow ratemonthly averagereport only (gal/d)all year001
Flow ratedaily maximumreport only (gal/d)all year001
Oxygen, dissolved [DO]daily minimum≥ 6 mg/LMar, Jun, Sep, Dec001
pHdaily minimum≥ 6.5 SUMar, Jun, Sep, Dec001
pHdaily maximum≤ 9 SUMar, Jun, Sep, Dec001
Solids, total suspendedmonthly average≤ 12 mg/LMar, Jun, Sep, Dec001
Solids, total suspendedweekly maximum≤ 18 mg/LMar, Jun, Sep, Dec001
Solids, total suspendedmonthly average≤ .11 kg/dMar, Jun, Sep, Dec001
Solids, total suspendedweekly maximum≤ .17 kg/dMar, Jun, Sep, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LJun, Sep001
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LMar, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 1.5 mg/LJun, Sep001
Nitrogen, ammonia total [as N]weekly maximum≤ 4.5 mg/LMar, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .0095 kg/dJun, Sep001
Nitrogen, ammonia total [as N]monthly average≤ .028 kg/dMar, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ .014 kg/dJun, Sep001
Nitrogen, ammonia total [as N]weekly maximum≤ .043 kg/dMar, Dec001
Turbidity [severity]monthly averagereport only (severity)all year001
Turbidity [severity]daily maximumreport only (severity)all year001
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLJun, Sep001
E. coli, MTEC-MFweekly geometric mean≤ 284 MPN/100mLJun, Sep001
Chlorine, total residualdaily maximum≤ .019 mg/LMar, Jun, Sep, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LMar, Jun, Sep, Dec001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 15 mg/LMar, Jun, Sep, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ .095 kg/dMar, Jun, Sep, Dec001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ .14 kg/dMar, Jun, Sep, Dec001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec002
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec002
Zinc, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec002
Zinc, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec002
Aluminum, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec002
Aluminum, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec002
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec003
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec003
Zinc, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec003
Zinc, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec003
Aluminum, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec003
Aluminum, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec003
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec004
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec004
Zinc, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec004
Zinc, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec004
Aluminum, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec004
Aluminum, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec004
Sludge waste from secondary clarifiersmonthly averagereport only (gal)Dec588
Sludge waste from secondary clarifiersdaily maximumreport only (gal)Dec588

How strict are these limits?

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

Same industry: the 33 Fabricated Metal Products permits in Ohio.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0131296 · MCP: https://passage-data.com/mcp