LAREDO, CITY OF

NPDES permit TX0085316 · Major POTW · effective, expires 2031-06-05 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

0values over a limit
0required values missing, on 0 form(s)
3of 17 forms filed late

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

Reporting

Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (29)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO MIN >= 2 mg/L all year
001BOD, 5-day, 20 deg. CDAILY AV <= 20 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
001BOD, 5-day, 20 deg. CDAILY AV <= 3002 lb/d all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY AV <= 20 mg/L all year
001Solids, total suspendedDAILY MX <= 45 mg/L all year
001Solids, total suspendedDAILY AV <= 3002 lb/d all year
001Flow, in conduit or thru treatment plantDAILY AV report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plant2P <= 50000 gal/min all year
001Flow, in conduit or thru treatment plantANNL AVG <= 18 MGD all year
001Chlorine, total residualMO MIN >= 1 mg/L all year
001Chlorine, total residualMO MAX <= 4 mg/L all year
001E. coliDAILY AV <= 126 MPN/100mL all year
001E. coliDAILY MX <= 399 MPN/100mL all year
TX1Whole effluent toxicity - retest #248HR MIN report only all year
TX1Whole effluent toxicity - retest #2MO AV MN report only all year
TX1IC25 Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48HR MIN report only all year
TX1IC25 Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulexMO AV MN report only all year
TX1IC25 Low Flow Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48HR MIN report only all year
TX1IC25 Low Flow Pass/Fail Static Renewal 48Hr Acute Pimephales promelasMO AV MN report only all year
TX1IC25 Lethal Static Renewal 48HR Acute Daphnia pulex48HR MIN report only all year
TX1IC25 Lethal Static Renewal 48HR Acute Daphnia pulexMO AV MN report only all year
TX1IC25 Lethal Static Renewal 48HR Acute Pimephales promelas48HR MIN report only all year
TX1IC25 Lethal Static Renewal 48HR Acute Pimephales promelasMO AV MN report only all year
TXALC50 Pass/Fail Static 24Hr Acute D. PulexSINGSAMP report only all year
TXALC50 Pass/Fail Static 24Hr Acute Pimephales promelasSINGSAMP 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