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Tennessee Valley Authority

Federal facility (Nitrogenous Fertilizers), Muscle Shoals, Alabama. NPDES permit AL0003891, in force until Jul 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form 1 monthly (7 values), form S twice a year
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 14 reports late

Limits in force (10)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 8.5 SUall year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Oil & Greasedaily maximum≤ 15 mg/Lall year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Arsenic, total recoverabledaily maximumreport only (ug/L)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Cyanide, free availabledaily maximumreport only (ug/L)all year
Mercury, total recoverabledaily maximumreport only (ug/L)all year

How strict are these limits?

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

Same industry: the 79 Chemicals and Allied Products 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/AL0003891 · MCP: https://passage-data.com/mcp