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Nelson Stud Welding Inc

Bolts, Nuts, Rivets, And Washers, Elyria, Ohio. NPDES permit OH0021610, in force until Apr 30, 2029. Last 12 months: no values over a limit, 22 required values missing, 3 of 21 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (8 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 4 required values missing, 1 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, Aug, Dec001
pHdaily minimum≥ 6.5 SUMar, Jun, Aug, Dec001
pHdaily maximum≤ 9 SUMar, Jun, Aug, Dec001
Solids, total suspendedmonthly average≤ 12 mg/LMar, Jun, Aug, Dec001
Solids, total suspendedweekly maximum≤ 18 mg/LMar, Jun, Aug, Dec001
Solids, total suspendedmonthly average≤ .146 kg/dMar, Jun, Aug, Dec001
Solids, total suspendedweekly maximum≤ .219 kg/dMar, Jun, Aug, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LJun, Sep001
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LMar, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 2.25 mg/LJun, Sep001
Nitrogen, ammonia total [as N]weekly maximum≤ 4.5 mg/LMar, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .0182 kg/dJun, Sep001
Nitrogen, ammonia total [as N]monthly average≤ .0364 kg/dMar, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ .0273 kg/dJun, Sep001
Nitrogen, ammonia total [as N]weekly maximum≤ .0546 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, Aug001
E. coli, MTEC-MFweekly geometric mean≤ 284 MPN/100mLJun, Aug001
Chlorine, total residualdaily maximum≤ .019 mg/LJun, Aug001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LMar, Jun, Aug, Dec001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 15 mg/LMar, Jun, Aug, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ .122 kg/dMar, Jun, Aug, Dec001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ .182 kg/dMar, Jun, Aug, 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, 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
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec602
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec602
Zinc, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec602
Zinc, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec602
Aluminum, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec602
Aluminum, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec602

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/OH0021610 · MCP: https://passage-data.com/mcp