Tennessee Valley Authority (TVA)

NPDES permit TN0005789 · Major FEDERAL · effective, expires 2028-11-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 62 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among TN permits in EPA's filings — check your permit).

Limits in force (124)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6 SU all year
001pHMINIMUM >= 6 SU all year
001Solids, total suspendedMO AVG <= 26 mg/L all year
001Solids, total suspendedMO AVG <= 26 mg/L all year
001Solids, total suspendedDAILY MX <= 84 mg/L all year
001Solids, total suspendedDAILY MX <= 84 mg/L all year
001Nitrogen, ammonia total [as N]VALUE report only all year
001Nitrogen, ammonia total [as N]VALUE report only all year
001Arsenic, total [as As]VALUE report only all year
001Arsenic, total [as As]VALUE report only all year
001Barium, total [as Ba]VALUE report only all year
001Barium, total [as Ba]VALUE report only all year
001Beryllium, total [as Be]VALUE report only all year
001Beryllium, total [as Be]VALUE report only all year
001Cadmium, total [as Cd]VALUE report only all year
001Cadmium, total [as Cd]VALUE report only all year
001Chromium, total [as Cr]VALUE report only all year
001Chromium, total [as Cr]VALUE report only all year
001Copper, total [as Cu]VALUE report only all year
001Copper, total [as Cu]VALUE report only all year
001Iron, total [as Fe]VALUE report only all year
001Iron, total [as Fe]VALUE report only all year
001Lead, total [as Pb]VALUE report only all year
001Lead, total [as Pb]VALUE report only all year
001Thallium, total [as Tl]VALUE report only all year
001Thallium, total [as Tl]VALUE report only all year
001Nickel, total [as Ni]VALUE report only all year
001Nickel, total [as Ni]VALUE report only all year
001Silver, total [as Ag]VALUE report only all year
001Silver, total [as Ag]VALUE report only all year
001Zinc, total [as Zn]VALUE report only all year
001Zinc, total [as Zn]VALUE report only all year
001Antimony, total [as Sb]VALUE report only all year
001Antimony, total [as Sb]VALUE report only all year
001Aluminum, total [as Al]VALUE report only all year
001Aluminum, total [as Al]VALUE report only all year
001Selenium, total [as Se]VALUE report only all year
001Selenium, total [as Se]VALUE report only all year
001Oil and greaseMO AVG <= 12 mg/L all year
001Oil and greaseMO AVG <= 12 mg/L all year
001Oil and greaseDAILY MX <= 16 mg/L all year
001Oil and greaseDAILY MX <= 16 mg/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Mercury, total [as Hg]DAILY MX report only all year
001Mercury, total [as Hg]DAILY MX report only all year
002Temperature, water deg. centigradeDAILY MX report only all year
002Temperature, water deg. centigradeDAILY MX report only all year
002Temperature, water deg. centigradeDAILY MX <= 36.7 deg C all year
002Temperature, water deg. centigradeDAILY MX <= 36.7 deg C all year
002Oxidants, total residualMO AVG <= .011 mg/L all year
002Oxidants, total residualMO AVG <= .011 mg/L all year
002Oxidants, total residualDAILY MX <= .019 mg/L all year
002Oxidants, total residualDAILY MX <= .019 mg/L all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 100 % all year
002IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 100 % all year
002IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasMINIMUM >= 100 % all year
002IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasMINIMUM >= 100 % all year
007Copper, total [as Cu]VALUE <= 1 mg/L all year
007Copper, total [as Cu]VALUE <= 1 mg/L all year
007Iron, total [as Fe]VALUE <= 1 mg/L all year
007Iron, total [as Fe]VALUE <= 1 mg/L all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
009Nitrite + Nitrate total [as N]MO AVG <= 3 mg/L all year
009Nitrite + Nitrate total [as N]MO AVG <= 3 mg/L all year
009Nitrite + Nitrate total [as N]DAILY MX <= 4 mg/L all year
009Nitrite + Nitrate total [as N]DAILY MX <= 4 mg/L all year
009Arsenic, total [as As]MO AVG <= 8 ug/L all year
009Arsenic, total [as As]MO AVG <= 8 ug/L all year
009Arsenic, total [as As]DAILY MX <= 18 ug/L all year
009Arsenic, total [as As]DAILY MX <= 18 ug/L all year
009Selenium, total [as Se]MO AVG <= 29 ug/L all year
009Selenium, total [as Se]MO AVG <= 29 ug/L all year
009Selenium, total [as Se]DAILY MX <= 70 ug/L all year
009Selenium, total [as Se]DAILY MX <= 70 ug/L all year
009Flow, in conduit or thru treatment plantMO AVG report only all year
009Flow, in conduit or thru treatment plantMO AVG report only all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
009Mercury, total [as Hg]MO AVG <= 34 ng/L all year
009Mercury, total [as Hg]MO AVG <= 34 ng/L all year
009Mercury, total [as Hg]DAILY MX <= 103 ng/L all year
009Mercury, total [as Hg]DAILY MX <= 103 ng/L all year
RWIHardness, total [as CaCO3]VALUE report only all year
RWIHardness, total [as CaCO3]VALUE report only all year
RWIArsenic, total [as As]VALUE report only all year
RWIArsenic, total [as As]VALUE report only all year
RWIBarium, total [as Ba]VALUE report only all year
RWIBarium, total [as Ba]VALUE report only all year
RWIBeryllium, total [as Be]VALUE report only all year
RWIBeryllium, total [as Be]VALUE report only all year
RWICadmium, total [as Cd]VALUE report only all year
RWICadmium, total [as Cd]VALUE report only all year
RWIChromium, total [as Cr]VALUE report only all year
RWIChromium, total [as Cr]VALUE report only all year
RWICopper, total [as Cu]VALUE report only all year
RWICopper, total [as Cu]VALUE report only all year
RWIIron, total [as Fe]VALUE report only all year
RWIIron, total [as Fe]VALUE report only all year
RWILead, total [as Pb]VALUE report only all year
RWILead, total [as Pb]VALUE report only all year
RWINickel, total [as Ni]VALUE report only all year
RWINickel, total [as Ni]VALUE report only all year
RWISilver, total [as Ag]VALUE report only all year
RWISilver, total [as Ag]VALUE report only all year
RWIZinc, total [as Zn]VALUE report only all year
RWIZinc, total [as Zn]VALUE report only all year
RWIAntimony, total [as Sb]VALUE report only all year
RWIAntimony, total [as Sb]VALUE report only all year
RWIAluminum, total [as Al]VALUE report only all year
RWIAluminum, total [as Al]VALUE report only all year
RWISelenium, total [as Se]VALUE report only all year
RWISelenium, total [as Se]VALUE report only all year
RWIMercury, total [as Hg]VALUE report only all year
RWIMercury, total [as Hg]VALUE report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states