MESSER LLC

NPDES permit TX0135101 · Minor NON-POTW · effective, expires 2031-06-11 · 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

2values over a limit
0required values missing, on 0 form(s)
3of 11 forms filed late

Last period with anything received: 2026-07-31. Most often over: Copper, total [as Cu] (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 (17)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY AV <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 100 mg/L all year
001Solids, total suspendedDAILY AV <= 62.6 lb/d all year
001Solids, total suspendedDAILY MX <= 208.6 lb/d all year
001Oil & GreaseDAILY AV <= 16.5 mg/L all year
001Oil & GreaseDAILY MX <= 23.7 mg/L all year
001Oil & GreaseDAILY AV <= 33.9 lb/d all year
001Oil & GreaseDAILY MX <= 48.4 lb/d all year
001Copper, total [as Cu]DAILY AV <= .0435 mg/L all year
001Copper, total [as Cu]DAILY MX <= .0921 mg/L all year
001Copper, total [as Cu]DAILY AV <= .091 lb/d all year
001Copper, total [as Cu]DAILY MX <= .192 lb/d all year
001Flow, in conduit or thru treatment plantDAILY AV <= .25 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX <= .35 MGD 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