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Therm-O-Link, Inc.

Nonferrous Wiredrawing & Insulating, Garretsville, Ohio. NPDES permit OH0121550, in force until Jul 31, 2031. Last 12 months: over a limit once (last May 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 003 form A monthly (11 values), outfall 602 form A monthly (12 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 4 of 36 reports late

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

Period endingParameterReportedLimitOver by
May 2026Solids, total suspended, daily maximum21.5≤ 19 mg/L13%

Limits in force (23)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year003
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year003
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year003
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year003
pHdaily minimum≥ 6.5 SUall year003
pHdaily maximum≤ 9 SUall year003
Solids, total suspendedmonthly averagereport only (mg/L)all year003
Solids, total suspendeddaily maximumreport only (mg/L)all year003
Oil and grease [soxhlet extr.] tot.daily maximum≤ 10 mg/Lall year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
BOD, 5-day, 20 deg. Cdaily maximum≤ 26 mg/Lall year602
BOD, 5-day, 20 deg. Cdaily maximum≤ 2.03 kg/dall year602
pHdaily minimum≥ 6 SUall year602
pHdaily maximum≤ 9 SUall year602
Solids, total suspendeddaily maximum≤ 19 mg/Lall year602
Solids, total suspendeddaily maximum≤ 1.49 kg/dall year602
Oil and grease [soxhlet extr.] tot.daily maximum≤ 29 mg/Lall year602
Oil and grease [soxhlet extr.] tot.daily maximum≤ 2.27 kg/dall year602
Di[2-ethylhexyl] phthalate [DEHP]monthly averagereport only (ug/L)Mar, Jun, Sep, Dec602
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (ug/L)Mar, Jun, Sep, Dec602
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year602
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year602

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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0121550 · MCP: https://passage-data.com/mcp