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NPDES permit TX0112461 · Minor NON-POTW · administratively continued, expires 2026-04-08 · 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 2026-04-08 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

4values over a limit
0required values missing, on 0 form(s)
0of 22 forms filed late

Last period with anything received: 2026-07-31. Most often over: BOD, 5-day, 20 deg. C (2), Solids, total suspended (2).

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among TX permits in EPA's filings — check your permit).

Limits in force (28)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CDAILY AV <= 45 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 95 mg/L all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Copper, total [as Cu]DAILY AV <= .128 mg/L all year
001Copper, total [as Cu]DAILY MX <= .271 mg/L all year
001Zinc, total [as Zn]DAILY AV <= .408 mg/L all year
001Zinc, total [as Zn]DAILY MX <= .865 mg/L all year
001Flow, in conduit or thru treatment plantDAILY AV <= .015 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX <= .025 MGD all year
001Chlorine, free availableDAILY AV <= .2 mg/L all year
001Chlorine, free availableDAILY MX <= .5 mg/L all year
001E. coliDA GEO <= 126 CFU/100mL all year
001E. coliDAILY MX <= 200 CFU/100mL all year
002BOD, 5-day, 20 deg. CDAILY AV <= 45 mg/L all year
002BOD, 5-day, 20 deg. CDAILY MX <= 95 mg/L all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedDAILY AV <= 30 mg/L all year
002Solids, total suspendedDAILY MX <= 100 mg/L all year
002Oil & GreaseDAILY AV <= 15 mg/L all year
002Oil & GreaseDAILY MX <= 20 mg/L all year
002Copper, total [as Cu]DAILY AV <= .164 mg/L all year
002Copper, total [as Cu]DAILY MX <= .348 mg/L all year
002Flow, in conduit or thru treatment plantDAILY AV <= .02 MGD all year
002Flow, in conduit or thru treatment plantDAILY MX <= .025 MGD all year
002E. coliDA GEO <= 126 CFU/100mL all year
002E. coliDAILY MX <= 200 CFU/100mL 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