MERKEL, CITY OF

NPDES permit TX0111341 · Minor POTW · effective, expires 2029-10-18 · 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

29values over a limit
0required values missing, on 0 form(s)
0of 11 forms filed late

Last period with anything received: 2026-07-31. Most often over: Oxygen, dissolved [DO] (10), BOD, 5-day, 20 deg. C (10), Solids, total suspended (7).

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 (12)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO MIN >= 4 mg/L all year
001BOD, 5-day, 20 deg. CDAILY AV <= 30 mg/L all year
001BOD, 5-day, 20 deg. CSINGGRAB <= 100 mg/L all year
001BOD, 5-day, 20 deg. CDAILY AV <= 80 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY AV <= 90 mg/L all year
001Solids, total suspendedDAILY AV <= 240 lb/d all year
001Flow, in conduit or thru treatment plantDAILY AV <= .32 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001E. coliDAILY AV <= 126 CFU/100mL all year
001E. coliSINGGRAB <= 399 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