NWI Nashville, LLC

NPDES permit TN0001597 · Minor NON-POTW · effective, expires 2030-07-31 · 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)
4of 40 forms filed late

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

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (38)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 40 mg/L all year
001Chromium, hexavalent [as Cr]DAILY MX report only all year
001Copper, total [as Cu]MO AVG <= .062 mg/L all year
001Copper, total [as Cu]DAILY MX <= .098 mg/L all year
001Iron, total [as Fe]DAILY MX <= 5 mg/L all year
001Oil and greaseDAILY MX <= 30 mg/L all year
001Floating solids, waste or visible foam-visualVALUE 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
001Chlorine, total residualMO AVG <= .011 mg/L all year
001Chlorine, total residualDAILY MX <= .019 mg/L all year
001IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 100 % all year
001IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasMINIMUM >= 100 % all year
002Temperature, water deg. centigradeMO AVG report only all year
002Temperature, water deg. centigradeDAILY MX report only all year
002pHDAILY MN >= 6 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspendedMO AVG <= 30 mg/L all year
002Solids, total suspendedDAILY MX <= 40 mg/L all year
002Chromium, hexavalent [as Cr]DAILY MX report only all year
002Copper, total [as Cu]MO AVG <= .062 mg/L all year
002Copper, total [as Cu]DAILY MX <= .098 mg/L all year
002Iron, total [as Fe]DAILY MX <= 5 mg/L all year
002Oil and greaseDAILY MX <= 30 mg/L all year
002Floating solids, waste or visible foam-visualVALUE 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
002Chlorine, total residualMO AVG <= .011 mg/L all year
002Chlorine, total residualDAILY MX <= .019 mg/L all year
002IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaDAILY MN >= 100 % survival all year
002IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasDAILY MN >= 100 % survival all year
SW1Solids, total suspendedDAILY MX report only all year
SW2Solids, total suspendedDAILY 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