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NTN Bower Corporation

Ball And Roller Bearings, Hamilton, Alabama. NPDES permit AL0030988, in force until Feb 29, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form Q quarterly (7 values), form S twice a year
Renewal application due
Sep 2, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 6 reports late

Limits in force (13)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximum≤ 90 deg Fall year
pHdaily minimum≥ 6 SUall year
pHdaily minimumreport only (SU)all year
pHdaily maximum≤ 8.5 SUall year
pHdaily maximumreport only (SU)all year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Oil & Greasedaily maximum≤ 15 mg/Lall year
Oil & Greasedaily maximum≤ 15 mg/Lall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .011 mg/Lall year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year

How strict are these limits?

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

Same industry: the 5 Industrial and Commercial Machinery and Computer Equipment permits in Alabama.

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/AL0030988 · MCP: https://passage-data.com/mcp