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Tennessee Valley Authority (TVA)

Federal facility (Electric Services), major discharger, Gallatin, Tennessee. NPDES permit TN0005428 expired May 31, 2023; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form G monthly (24 values), outfall 001 form Q quarterly (16 values), outfall 002 form G monthly (6 values), outfall 005 form G monthly (2 values), outfall 010 form G monthly (26 values), outfall 001 form T, and 2 more forms
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 54 reports late

Limits in force (95)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 28 mg/Lall year001
Solids, total suspendeddaily maximum≤ 93 mg/Lall year001
Oil & Greasemonthly average≤ 14 mg/Lall year001
Oil & Greasedaily maximum≤ 18 mg/Lall year001
Calcium, total [as Ca]valuereport only (mg/L)all year001
Calcium, total [as Ca]valuereport only (mg/L)all year001
Sulfate, total [as SO4]valuereport only (mg/L)all year001
Sulfate, total [as SO4]valuereport only (mg/L)all year001
Fluoride, total [as F]valuereport only (mg/L)all year001
Fluoride, total [as F]valuereport only (mg/L)all year001
Arsenic, total [as As]valuereport only (mg/L)all year001
Barium, total [as Ba]valuereport only (mg/L)all year001
Beryllium, total [as Be]valuereport only (mg/L)all year001
Boron, total [as B]valuereport only (mg/L)all year001
Boron, total [as B]valuereport only (mg/L)all year001
Cadmium, total [as Cd]valuereport only (mg/L)all year001
Chromium, total [as Cr]valuereport only (mg/L)all year001
Copper, total [as Cu]valuereport only (mg/L)all year001
Iron, total [as Fe]valuereport only (mg/L)all year001
Lead, total [as Pb]valuereport only (mg/L)all year001
Thallium, total [as Tl]valuereport only (mg/L)all year001
Molybdenum, total [as Mo]valuereport only (mg/L)all year001
Molybdenum, total [as Mo]valuereport only (mg/L)all year001
Nickel, total [as Ni]valuereport only (mg/L)all year001
Silver, total [as Ag]valuereport only (mg/L)all year001
Zinc, total [as Zn]valuereport only (mg/L)all year001
Antimony, total [as Sb]valuereport only (mg/L)all year001
Aluminum, total [as Al]valuereport only (mg/L)all year001
Lithium, total [as Li]valuereport only (mg/L)all year001
Lithium, total [as Li]valuereport only (mg/L)all year001
Selenium, total [as Se]valuereport only (mg/L)all year001
Radium 226 + radium 228, totalvaluereport only (pCi/L)all year001
Radium 226 + radium 228, totalvaluereport only (pCi/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Solids, total dissolvedvaluereport only (mg/L)all year001
Solids, total dissolvedvaluereport only (mg/L)all year001
Mercury, total [as Hg]valuereport only (ng/L)all year001
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 3.6 % survivalall year001
IC25 Static Renewal 7 Day Chronic Pimephalesminimum≥ 3.6 % survivalall year001
Temperature, water deg. centigradedaily averagereport only (deg C)all year002
Temperature, water deg. centigradevalue≤ 32.8 deg Call year002
Oxidants, total residualmonthly average≤ .011 mg/Lall year002
Oxidants, total residualdaily maximum≤ .019 mg/Lall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 100 %all year002
IC25 Static Renewal 7 Day Chronic Pimephalesminimum≥ 100 %all year002
Copper, total [as Cu]value≤ 1 mg/Lall year005
Iron, total [as Fe]value≤ 1 mg/Lall year005
pHminimum≥ 6 SUall year010
pHmaximum≤ 9 SUall year010
Solids, total suspendedmonthly average≤ 28 mg/Lall year010
Solids, total suspendeddaily maximum≤ 93 mg/Lall year010
Oil & Greasemonthly average≤ 14 mg/Lall year010
Oil & Greasedaily maximum≤ 18 mg/Lall year010
Arsenic, total [as As]valuereport only (mg/L)all year010
Barium, total [as Ba]valuereport only (mg/L)all year010
Beryllium, total [as Be]valuereport only (mg/L)all year010
Cadmium, total [as Cd]valuereport only (mg/L)all year010
Chromium, total [as Cr]valuereport only (mg/L)all year010
Copper, total [as Cu]valuereport only (mg/L)all year010
Iron, total [as Fe]valuereport only (mg/L)all year010
Lead, total [as Pb]valuereport only (mg/L)all year010
Thallium, total [as Tl]valuereport only (mg/L)all year010
Nickel, total [as Ni]valuereport only (mg/L)all year010
Silver, total [as Ag]valuereport only (mg/L)all year010
Zinc, total [as Zn]valuereport only (mg/L)all year010
Antimony, total [as Sb]valuereport only (mg/L)all year010
Aluminum, total [as Al]valuereport only (mg/L)all year010
Selenium, total [as Se]valuereport only (mg/L)all year010
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year010
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year010
Mercury, total [as Hg]valuereport only (ng/L)all year010
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 3.6 %all year010
IC25 Static Renewal 7 Day Chronic Pimephalesminimum≥ 3.6 %all year010
Hardness, total [as CaCO3]minimumreport only (mg/L)all yearINT
Arsenic, total [as As]valuereport only (mg/L)all yearINT
Barium, total [as Ba]valuereport only (mg/L)all yearINT
Beryllium, total [as Be]valuereport only (mg/L)all yearINT
Cadmium, total [as Cd]valuereport only (mg/L)all yearINT
Chromium, total [as Cr]valuereport only (mg/L)all yearINT
Copper, total [as Cu]valuereport only (mg/L)all yearINT
Iron, total [as Fe]valuereport only (mg/L)all yearINT
Lead, total [as Pb]valuereport only (mg/L)all yearINT
Thallium, total [as Tl]valuereport only (mg/L)all yearINT
Nickel, total [as Ni]valuereport only (mg/L)all yearINT
Silver, total [as Ag]valuereport only (mg/L)all yearINT
Zinc, total [as Zn]valuereport only (mg/L)all yearINT
Antimony, total [as Sb]valuereport only (mg/L)all yearINT
Aluminum, total [as Al]valuereport only (mg/L)all yearINT
Selenium, total [as Se]valuereport only (mg/L)all yearINT
Mercury, total [as Hg]valuereport only (ng/L)all yearINT

How strict are these limits?

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

Same industry: the 15 Electric Services permits in Tennessee.

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/TN0005428 · MCP: https://passage-data.com/mcp