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Praxair Incorporated

Industrial Gases, Niagara Falls, New York. NPDES permit NY0108251 expired Jun 30, 2012; its limits still apply. Last 12 months: over a limit once (last April 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form M monthly (6 values), outfall 002 form M monthly (5 values), outfall 003 form M monthly (5 values), outfall 004 form M monthly (6 values), outfall SUM form M monthly (1 value)
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 6 of 60 reports late

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

Period endingParameterReportedLimitOver by
April 2026Solids, total suspended, daily maximum23.2 mg/L≤ 10 mg/L132%

Limits in force (25)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximum≤ 90 deg Fall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Flow, in conduit or thru treatment plantdaily average≤ 41 MGDall year001
Flow, in conduit or thru treatment plantdaily average≤ 31.5 MGDall year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow ratedaily average≤ 40000 gal/dall year002
Flow ratedaily maximumreport only (gal/d)all year002
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Temperature, water deg. fahrenheitdaily maximum≤ 90 deg Fall year003
pHminimum≥ 6 SUall year003
pHmaximum≤ 9 SUall year003
Solids, total suspendeddaily maximum≤ 10 mg/Lall year003
Flow, in conduit or thru treatment plantdaily maximum≤ .1 MGDall year003
Temperature, water deg. fahrenheitdaily maximum≤ 90 deg Fall year004
pHminimum≥ 6 SUall year004
pHmaximum≤ 9 SUall year004
Oil & Greasedaily maximum≤ 15 mg/Lall year004
Flow, in conduit or thru treatment plantdaily average≤ 14 MGDall year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
Quarternary ammonium compoundsdaily maximum≤ 1 mg/Lall yearSUM

How strict are these limits?

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

Same industry: the 31 Chemicals and Allied Products permits in New York.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NY0108251 · MCP: https://passage-data.com/mcp