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Triangle Suspension Sys Inc

Steel Springs, Except Wire, Du Bois, Pennsylvania. NPDES permit PA0100161 expired Aug 31, 2026; its limits still apply. 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: outfall 101 form A monthly (12 values), outfall 001 form S twice a year, outfall 101 form Y yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 15 reports late

Limits in force (20)

ParameterStatisticLimitMonthsOutfall
pHdaily maximumreport only (SU)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year001
Iron, total [as Fe]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Aluminum, total [as Al]daily maximumreport only (mg/L)all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year101
pHinstantaneous minimum≥ 6 SUall year101
pHinstantaneous maximum≤ 9 SUall year101
Solids, total suspendedmonthly average≤ 31 mg/Lall year101
Solids, total suspendeddaily maximum≤ 60 mg/Lall year101
Solids, total suspendedmonthly averagereport only (lb/d)all year101
Solids, total suspendeddaily maximumreport only (lb/d)all year101
Oil & Greasemonthly average≤ 15 mg/Lall year101
Oil & Greasemonthly averagereport only (lb/d)all year101
Oil & Greasedaily maximumreport only (lb/d)all year101
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101
Organics, total toxic [TTO]daily maximum≤ 2.13 mg/Lall year101
Organics, total toxic [TTO]daily maximumreport only (lb/d)all year101

How strict are these limits?

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

Same industry: the 57 Fabricated Metal Products 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/PA0100161 · MCP: https://passage-data.com/mcp