Tennessee Valley Authority (TVA)

NPDES permit TN0005428 · Major FEDERAL · administratively continued, expires 2023-05-31 · 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.

This permit expired on 2023-05-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
0required values missing, on 0 form(s)
0of 54 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 (95)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 28 mg/L all year
001Solids, total suspendedDAILY MX <= 93 mg/L all year
001Oil & GreaseMO AVG <= 14 mg/L all year
001Oil & GreaseDAILY MX <= 18 mg/L all year
001Calcium, total [as Ca]VALUE report only all year
001Calcium, total [as Ca]VALUE report only all year
001Sulfate, total [as SO4]VALUE report only all year
001Sulfate, total [as SO4]VALUE report only all year
001Fluoride, total [as F]VALUE report only all year
001Fluoride, total [as F]VALUE report only all year
001Arsenic, total [as As]VALUE report only all year
001Barium, total [as Ba]VALUE report only all year
001Beryllium, total [as Be]VALUE report only all year
001Boron, total [as B]VALUE report only all year
001Boron, total [as B]VALUE report only all year
001Cadmium, total [as Cd]VALUE report only all year
001Chromium, total [as Cr]VALUE report only all year
001Copper, total [as Cu]VALUE report only all year
001Iron, total [as Fe]VALUE report only all year
001Lead, total [as Pb]VALUE report only all year
001Thallium, total [as Tl]VALUE report only all year
001Molybdenum, total [as Mo]VALUE report only all year
001Molybdenum, total [as Mo]VALUE report only all year
001Nickel, total [as Ni]VALUE report only all year
001Silver, total [as Ag]VALUE report only all year
001Zinc, total [as Zn]VALUE report only all year
001Antimony, total [as Sb]VALUE report only all year
001Aluminum, total [as Al]VALUE report only all year
001Lithium, total [as Li]VALUE report only all year
001Lithium, total [as Li]VALUE report only all year
001Selenium, total [as Se]VALUE report only all year
001Radium 226 + radium 228, totalVALUE report only all year
001Radium 226 + radium 228, totalVALUE 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
001Solids, total dissolvedVALUE report only all year
001Solids, total dissolvedVALUE report only all year
001Mercury, total [as Hg]VALUE report only all year
001IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 3.6 % survival all year
001IC25 Static Renewal 7 Day Chronic ChrpimephalesMINIMUM >= 3.6 % survival all year
002Temperature, water deg. centigradeDAILY AV report only all year
002Temperature, water deg. centigradeVALUE <= 32.8 deg C all year
002Oxidants, total residualMO AVG <= .011 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 plantDAILY MX report only all year
002IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 100 % all year
002IC25 Static Renewal 7 Day Chronic ChrpimephalesMINIMUM >= 100 % all year
005Copper, total [as Cu]VALUE <= 1 mg/L all year
005Iron, total [as Fe]VALUE <= 1 mg/L all year
010pHMINIMUM >= 6 SU all year
010pHMAXIMUM <= 9 SU all year
010Solids, total suspendedMO AVG <= 28 mg/L all year
010Solids, total suspendedDAILY MX <= 93 mg/L all year
010Oil & GreaseMO AVG <= 14 mg/L all year
010Oil & GreaseDAILY MX <= 18 mg/L all year
010Arsenic, total [as As]VALUE report only all year
010Barium, total [as Ba]VALUE report only all year
010Beryllium, total [as Be]VALUE report only all year
010Cadmium, total [as Cd]VALUE report only all year
010Chromium, total [as Cr]VALUE report only all year
010Copper, total [as Cu]VALUE report only all year
010Iron, total [as Fe]VALUE report only all year
010Lead, total [as Pb]VALUE report only all year
010Thallium, total [as Tl]VALUE report only all year
010Nickel, total [as Ni]VALUE report only all year
010Silver, total [as Ag]VALUE report only all year
010Zinc, total [as Zn]VALUE report only all year
010Antimony, total [as Sb]VALUE report only all year
010Aluminum, total [as Al]VALUE report only all year
010Selenium, total [as Se]VALUE report only all year
010Flow, in conduit or thru treatment plantDAILY MX report only all year
010Flow, in conduit or thru treatment plantMO AVG report only all year
010Mercury, total [as Hg]VALUE report only all year
010IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 3.6 % all year
010IC25 Static Renewal 7 Day Chronic ChrpimephalesMINIMUM >= 3.6 % all year
INTHardness, total [as CaCO3]MINIMUM report only all year
INTArsenic, total [as As]VALUE report only all year
INTBarium, total [as Ba]VALUE report only all year
INTBeryllium, total [as Be]VALUE report only all year
INTCadmium, total [as Cd]VALUE report only all year
INTChromium, total [as Cr]VALUE report only all year
INTCopper, total [as Cu]VALUE report only all year
INTIron, total [as Fe]VALUE report only all year
INTLead, total [as Pb]VALUE report only all year
INTThallium, total [as Tl]VALUE report only all year
INTNickel, total [as Ni]VALUE report only all year
INTSilver, total [as Ag]VALUE report only all year
INTZinc, total [as Zn]VALUE report only all year
INTAntimony, total [as Sb]VALUE report only all year
INTAluminum, total [as Al]VALUE report only all year
INTSelenium, total [as Se]VALUE report only all year
INTMercury, 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