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M&H Valve Company, a division of McWane, LLC

Valves And Pipe Fittings, Anniston, Alabama. NPDES permit AL0074730, in force until Oct 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form S twice a year, outfall 002 form S twice a year, outfall 003 form S twice a year
Last report on file
December 2025
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 6 reports late

Limits in force (54)

ParameterStatisticLimitMonthsOutfall
pHdaily minimumreport only (SU)all year001
pHdaily maximumreport only (SU)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all year001
Cyanide, total [as CN]daily maximumreport only (mg/L)all year001
Arsenic, total recoverabledaily maximumreport only (mg/L)all year001
Iron, total recoverabledaily maximumreport only (mg/L)all year001
Nickel, total recoverabledaily maximumreport only (mg/L)all year001
Zinc, total recoverabledaily maximumreport only (mg/L)all year001
Aluminum, total recoverabledaily maximumreport only (mg/L)all year001
Cadmium, total recoverabledaily maximumreport only (mg/L)all year001
Lead, total recoverabledaily maximumreport only (mg/L)all year001
Chromium, total recoverabledaily maximumreport only (mg/L)all year001
Copper, total recoverabledaily maximumreport only (mg/L)all year001
Manganese, total recoverabledaily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year001
pHdaily minimumreport only (SU)all year002
pHdaily maximumreport only (SU)all year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Nitrogen, total [as N]daily maximumreport only (mg/L)all year002
Cyanide, total [as CN]daily maximumreport only (mg/L)all year002
Arsenic, total recoverabledaily maximumreport only (mg/L)all year002
Iron, total recoverabledaily maximumreport only (mg/L)all year002
Nickel, total recoverabledaily maximumreport only (mg/L)all year002
Zinc, total recoverabledaily maximumreport only (mg/L)all year002
Aluminum, total recoverabledaily maximumreport only (mg/L)all year002
Cadmium, total recoverabledaily maximumreport only (mg/L)all year002
Lead, total recoverabledaily maximumreport only (mg/L)all year002
Chromium, total recoverabledaily maximumreport only (mg/L)all year002
Copper, total recoverabledaily maximumreport only (mg/L)all year002
Manganese, total recoverabledaily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year002
pHdaily minimumreport only (SU)all year003
pHdaily maximumreport only (SU)all year003
Solids, total suspendeddaily maximumreport only (mg/L)all year003
Oil & Greasedaily maximum≤ 15 mg/Lall year003
Nitrogen, total [as N]daily maximumreport only (mg/L)all year003
Cyanide, total [as CN]daily maximumreport only (mg/L)all year003
Arsenic, total recoverabledaily maximumreport only (mg/L)all year003
Iron, total recoverabledaily maximumreport only (mg/L)all year003
Nickel, total recoverabledaily maximumreport only (mg/L)all year003
Zinc, total recoverabledaily maximumreport only (mg/L)all year003
Aluminum, total recoverabledaily maximumreport only (mg/L)all year003
Cadmium, total recoverabledaily maximumreport only (mg/L)all year003
Lead, total recoverabledaily maximumreport only (mg/L)all year003
Chromium, total recoverabledaily maximumreport only (mg/L)all year003
Copper, total recoverabledaily maximumreport only (mg/L)all year003
Manganese, total recoverabledaily maximumreport only (mg/L)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year003

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

Same industry: the 9 Fabricated Metal Products permits in Alabama.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/AL0074730 · MCP: https://passage-data.com/mcp