City of Hannibal

NPDES permit MO0112721 · Minor NON-POTW · effective, expires 2027-07-31 · 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

1values over a limit
0required values missing, on 0 form(s)
0of 8 forms filed late

Last period with anything received: 2026-06-30. Most often over: Solids, total suspended (1).

Reporting

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

Limits in force (36)

OutfallParameterStatisticLimitMonths
001Sulfate [as S]DAILY MX report only all year
001Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX <= 80 mg/L all year
001Solids, settleableDAILY MX report only all year
001Oil and grease [soxhlet extr.] tot.DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Iron, total recoverableDAILY MX report only all year
001Selenium, total recoverableDAILY MX report only all year
001Thallium, total recoverableDAILY MX report only all year
001Silver total recoverableDAILY MX report only all year
001Aluminum, total recoverableDAILY MX report only all year
001Copper, total recoverableDAILY MX report only all year
001BenzeneDAILY MX report only all year
001ChlorideDAILY MX report only all year
001Storm water flowDAILY MX report only all year
001Chlorides + SulfatesDAILY MX <= 1000 mg/L all year
002Sulfate [as S]DAILY MX report only all year
002Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedDAILY MX <= 80 mg/L all year
002Solids, settleableDAILY MX report only all year
002Oil and grease [soxhlet extr.] tot.DAILY MX report only all year
002Nitrogen, ammonia total [as N]DAILY MX report only all year
002Iron, total recoverableDAILY MX report only all year
002Selenium, total recoverableDAILY MX report only all year
002Thallium, total recoverableDAILY MX report only all year
002Silver total recoverableDAILY MX report only all year
002Aluminum, total recoverableDAILY MX report only all year
002Copper, total recoverableDAILY MX report only all year
002BenzeneDAILY MX report only all year
002ChlorideDAILY MX report only all year
002Storm water flowDAILY MX report only all year
002Chlorides + SulfatesDAILY MX <= 1000 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