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Tulsa Tube Bending

Fabricated Pipe And Fittings, Tulsa, Oklahoma. NPDES permit OK0046001, in force until Dec 31, 2027. Last 12 months: over a limit 2 times (last February 2026), 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: form A monthly (6 values)
Renewal application due: Jul 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file: September 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 1 of 12 reports late

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

Period ending	Parameter	Reported	Limit	Over by
January 2026	Solids, total suspended, daily maximum	117 mg/L	≤ 45 mg/L	160%
February 2026	Solids, total suspended, daily maximum	155 mg/L	≤ 45 mg/L	244%

Limits in force (6)

Parameter	Statistic	Limit	Months
pH	minimum	≥ 6.5 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, total suspended	monthly average	report only (mg/L)	all year
Solids, total suspended	daily maximum	≤ 45 mg/L	all year
Flow, in conduit or thru treatment plant	monthly average	report only (gal/d)	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (gal/d)	all year

How strict are these limits?

Solids, total suspended, daily maximum 45 mg/L — stricter than 14% of 104 other minor industrial and other permits in Oklahoma; 35% have the same limit

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OK0046001 · MCP: https://passage-data.com/mcp