HARRIS COUNTY MUD NO. 180

NPDES permit TX0079529 · Minor POTW · effective, expires 2028-02-09 · 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

2values 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: BOD, 5-day, 20 deg. C (2).

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 (15)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO MIN >= 4 mg/L all year
001BOD, 5-day, 20 deg. CDAILY AV <= 10 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 25 mg/L all year
001BOD, 5-day, 20 deg. CDAILY AV <= 79 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY AV <= 15 mg/L all year
001Solids, total suspendedDAILY MX <= 40 mg/L all year
001Solids, total suspendedDAILY AV <= 119 lb/d all year
001Flow, in conduit or thru treatment plantDAILY AV <= .95 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualMO MIN >= 1 mg/L all year
001Chlorine, total residualMO MAX <= 4 mg/L all year
001E. coliDAILY AV <= 63 MPN/100mL all year
001E. coliDAILY MX <= 200 MPN/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