Tennessee Valley Authority (TVA)

NPDES permit TN0071749 · Minor FEDERAL · administratively continued, expires 2026-02-28 · 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 2026-02-28 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 10 forms filed late

Last period with anything received: 2026-06-30.

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 (36)

OutfallParameterStatisticLimitMonths
001Specific conductanceDAILY MN report only (alert) all year
001Specific conductanceDAILY MN report only (alert) all year
001Specific conductanceMO AVG report only (alert) all year
001Specific conductanceMO AVG report only (alert) all year
001Specific conductanceDAILY MX report only (alert) all year
001Specific conductanceDAILY MX report only (alert) all year
001pHMINIMUM >= 6 SU all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, settleableMO AVG <= .5 mL/L all year
001Solids, settleableMO AVG <= .5 mL/L all year
001Solids, settleableDAILY MX <= .5 mL/L all year
001Solids, settleableDAILY MX <= .5 mL/L all year
001Sulfate, total [as SO4]DAILY MN report only (alert) all year
001Sulfate, total [as SO4]DAILY MN report only (alert) all year
001Sulfate, total [as SO4]MO AVG report only (alert) all year
001Sulfate, total [as SO4]MO AVG report only (alert) all year
001Sulfate, total [as SO4]DAILY MX report only (alert) all year
001Sulfate, total [as SO4]DAILY MX report only (alert) all year
001Iron, total [as Fe]DAILY MN report only (alert) all year
001Iron, total [as Fe]DAILY MN report only (alert) all year
001Iron, total [as Fe]MO AVG report only (alert) all year
001Iron, total [as Fe]MO AVG report only (alert) all year
001Iron, total [as Fe]DAILY MX report only (alert) all year
001Iron, total [as Fe]DAILY MX report only (alert) all year
001Manganese, total [as Mn]DAILY MN report only (alert) all year
001Manganese, total [as Mn]DAILY MN report only (alert) all year
001Manganese, total [as Mn]MO AVG report only (alert) all year
001Manganese, total [as Mn]MO AVG report only (alert) all year
001Manganese, total [as Mn]DAILY MX report only (alert) all year
001Manganese, total [as Mn]DAILY MX report only (alert) 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

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