Tennessee Valley Authority

NPDES permit AL0003867 · Major FEDERAL · effective, expires 2029-07-31 · 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.

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

0values over a limit
0required values missing, on 0 form(s)
0of 21 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (115)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 8.5 SU all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Arsenic, total [as As]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Iron, total [as Fe]DAILY MX report only all year
001Selenium, total [as Se]DAILY MX 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
001Mercury, total [as Hg]DAILY MX report only all year
004pHDAILY MN report only all year
004pHDAILY MX report only all year
004Solids, total suspendedDAILY MX report only all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Arsenic, total [as As]DAILY MX report only all year
004Copper, total [as Cu]DAILY MX report only all year
004Iron, total [as Fe]DAILY MX report only all year
004Nickel, total [as Ni]DAILY MX report only all year
004Zinc, total [as Zn]DAILY MX report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
010TurbidityDAILY MX report only all year
010BOD, 5-day, 20 deg. CDAILY MX report only all year
010pHDAILY MN report only all year
010pHDAILY MX report only all year
010Solids, total suspendedDAILY MX report only all year
010Oil & GreaseDAILY MX <= 15 mg/L all year
010Nitrogen, organic total [as N]DAILY MX report only all year
010Nitrogen, ammonia total [as N]DAILY MX report only all year
010Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
010Nitrite + Nitrate total [as N]DAILY MX report only all year
010Phosphorus, total [as P]DAILY MX report only all year
010Arsenic, total recoverableDAILY MX report only all year
010Cadmium, total [as Cd]DAILY MX report only all year
010Chromium, total [as Cr]DAILY MX report only all year
010Copper, total [as Cu]DAILY MX report only all year
010Lead, total [as Pb]DAILY MX report only all year
010Nickel, total [as Ni]DAILY MX report only all year
010Zinc, total [as Zn]DAILY MX report only all year
010Selenium, total [as Se]DAILY MX report only all year
010Flow, in conduit or thru treatment plantDAILY MX report only all year
010Solids, total dissolvedDAILY MX report only all year
010Mercury, total [as Hg]DAILY MX report only all year
010Iron, total [as Fe]DAILY MX report only all year
013TurbidityDAILY MX report only all year
013BOD, 5-day, 20 deg. CDAILY MX report only all year
013pHDAILY MN report only all year
013pHDAILY MX report only all year
013Solids, total suspendedDAILY MX report only all year
013Oil & GreaseDAILY MX <= 15 mg/L all year
013Nitrogen, organic total [as N]DAILY MX report only all year
013Nitrogen, ammonia total [as N]DAILY MX report only all year
013Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
013Nitrite + Nitrate total [as N]DAILY MX report only all year
013Phosphorus, total [as P]DAILY MX report only all year
013Arsenic, total recoverableDAILY MX report only all year
013Cadmium, total [as Cd]DAILY MX report only all year
013Chromium, total [as Cr]DAILY MX report only all year
013Copper, total [as Cu]DAILY MX report only all year
013Lead, total [as Pb]DAILY MX report only all year
013Nickel, total [as Ni]DAILY MX report only all year
013Zinc, total [as Zn]DAILY MX report only all year
013Selenium, total [as Se]DAILY MX report only all year
013Flow, in conduit or thru treatment plantDAILY MX report only all year
013Solids, total dissolvedDAILY MX report only all year
013Mercury, total [as Hg]DAILY MX report only all year
013Iron, total [as Fe]DAILY MX report only all year
016TurbidityDAILY MX report only all year
016BOD, 5-day, 20 deg. CDAILY MX report only all year
016pHDAILY MN report only all year
016pHDAILY MX report only all year
016Solids, total suspendedDAILY MX report only all year
016Oil & GreaseDAILY MX <= 15 mg/L all year
016Nitrogen, organic total [as N]DAILY MX report only all year
016Nitrogen, ammonia total [as N]DAILY MX report only all year
016Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
016Nitrite + Nitrate total [as N]DAILY MX report only all year
016Phosphorus, total [as P]DAILY MX report only all year
016Arsenic, total recoverableDAILY MX report only all year
016Cadmium, total [as Cd]DAILY MX report only all year
016Chromium, total [as Cr]DAILY MX report only all year
016Copper, total [as Cu]DAILY MX report only all year
016Lead, total [as Pb]DAILY MX report only all year
016Nickel, total [as Ni]DAILY MX report only all year
016Zinc, total [as Zn]DAILY MX report only all year
016Selenium, total [as Se]DAILY MX report only all year
016Flow, in conduit or thru treatment plantDAILY MX report only all year
016Solids, total dissolvedDAILY MX report only all year
016Mercury, total [as Hg]DAILY MX report only all year
016Iron, total [as Fe]DAILY MX report only all year
017TurbidityDAILY MX report only all year
017BOD, 5-day, 20 deg. CDAILY MX report only all year
017pHDAILY MN report only all year
017pHDAILY MX report only all year
017Solids, total suspendedDAILY MX report only all year
017Oil & GreaseDAILY MX <= 15 mg/L all year
017Nitrogen, organic total [as N]DAILY MX report only all year
017Nitrogen, ammonia total [as N]DAILY MX report only all year
017Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
017Nitrite + Nitrate total [as N]DAILY MX report only all year
017Phosphorus, total [as P]DAILY MX report only all year
017Arsenic, total recoverableDAILY MX report only all year
017Cadmium, total [as Cd]DAILY MX report only all year
017Chromium, total [as Cr]DAILY MX report only all year
017Copper, total [as Cu]DAILY MX report only all year
017Lead, total [as Pb]DAILY MX report only all year
017Nickel, total [as Ni]DAILY MX report only all year
017Zinc, total [as Zn]DAILY MX report only all year
017Selenium, total [as Se]DAILY MX report only all year
017Flow, in conduit or thru treatment plantDAILY MX report only all year
017Solids, total dissolvedDAILY MX report only all year
017Mercury, total [as Hg]DAILY MX report only all year
017Iron, total [as Fe]DAILY MX 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