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Plymouth Tube Co

Steel Pipe And Tubes, Horsham, Pennsylvania. NPDES permit PA0011011, in force until May 31, 2029. Last 12 months: no values over a limit, 12 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 28 days after each period: form A monthly (6 values)
Last report on file: June 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (6)

Parameter	Statistic	Limit	Months
pH	instantaneous minimum	≥ 6 SU	all year
pH	instantaneous maximum	≤ 9 SU	all year
Trichloroethylene	monthly average	≤ .005 mg/L	all year
Trichloroethylene	daily maximum	≤ .01 mg/L	all year
Trichloroethylene	instantaneous maximum	≤ .013 mg/L	all year
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year

How strict are these limits?

Trichloroethylene, daily maximum .01 mg/L — stricter than 33% of 24 other minor industrial and other permits in Pennsylvania; 46% have the same limit
Trichloroethylene, monthly average .005 mg/L — stricter than 31% of 29 other minor industrial and other permits in Pennsylvania; 41% have the same limit

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

Same industry: the 85 Primary Metal Industries permits in Pennsylvania.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0011011 · MCP: https://passage-data.com/mcp