Messer LLC

NPDES permit AL0040100 · Minor NON-POTW · effective, expires 2030-12-31 · 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)
0of 4 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among AL permits in EPA's filings — check your permit).

Limits in force (14)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001pHDAILY MN report only all year
001pHDAILY MX report only all year
001Solids, total suspendedDAILY MX report only all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Semiannual Certification StatementDAILY MX <= 0 Y=0;N=1 all year
01ATemperature, water deg. fahrenheitDAILY MX <= 86 deg F all year
01ApHDAILY MN >= 6 SU all year
01ApHDAILY MX <= 8.5 SU all year
01AFlow, in conduit or thru treatment plantDAILY MX report only all year
01AChlorine, total residualMO AVG <= .011 mg/L all year
01AChlorine, total residualDAILY MX <= .019 mg/L 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