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Yaffee Iron and Metal Co., Inc.

Scrap And Waste Materials, Muskogee, Oklahoma. NPDES permit OK0041874, in force until Nov 30, 2029. Last 12 months: over a limit 3 times (last February 2026), 11 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 1 days after each period: outfall 001 form A monthly (12 values), outfall 002 form A monthly (12 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 10 of 22 reports late

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

Period endingParameterReportedLimitOver by
February 2026Copper, total [as Cu], monthly average34 ug/L≤ 19 ug/L79%
February 2026Lead, total [as Pb], daily maximum21.7 ug/L≤ 12.49 ug/L74%
February 2026Lead, total [as Pb], monthly average21.7 ug/L≤ 5.2 ug/L317%

Limits in force (24)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30.2 mg/Lall year001
Solids, total suspendeddaily maximum≤ 45 mg/Lall year001
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year001
Oil and grease, hexane extr methoddaily maximum≤ 15 mg/Lall year001
Copper, total [as Cu]monthly average≤ 19 ug/Lall year001
Copper, total [as Cu]daily maximum≤ 37.75 ug/Lall year001
Lead, total [as Pb]monthly average≤ 5.2 ug/Lall year001
Lead, total [as Pb]daily maximum≤ 12.49 ug/Lall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
pHminimum≥ 6.5 SUall year002
pHmaximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 30.2 mg/Lall year002
Solids, total suspendeddaily maximum≤ 45 mg/Lall year002
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year002
Oil and grease, hexane extr methoddaily maximum≤ 15 mg/Lall year002
Copper, total [as Cu]monthly average≤ 19 ug/Lall year002
Copper, total [as Cu]daily maximum≤ 37.5 ug/Lall year002
Lead, total [as Pb]monthly average≤ 5.2 ug/Lall year002
Lead, total [as Pb]daily maximum≤ 12.49 ug/Lall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002

How strict are these limits?

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

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/OK0041874 · MCP: https://passage-data.com/mcp