City of Allegan

NPDES permit MI0058703 · Minor NON-POTW · administratively continued, expires 2025-10-01 · EPA's file as of 2026-09-19

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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.

This permit expired on 2025-10-01 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

4values over a limit
0required values missing, on 0 form(s)
1of 11 forms filed late

Last period with anything received: 2026-07-31. Most often over: TU Static 24 Hr Acute Daphnia magna (4).

Reporting

Reports are due about 21 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (17)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 50 mg/L all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Chloride [as Cl]DAILY MX report only all year
001Sulfate, total [as SO4]DAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualDAILY MX <= 38 ug/L all year
001Toxicity [acute], Ceriodaphnia dubiaDAILY MX <= 1 tox acute all year
001Solids, total dissolvedDAILY MX report only all year
001Outfall observation,visual, y/n responseVALUE report only all year
001Toxic Units Static 24 Hr Acute Ceriodaphnia dubiaDAILY MX <= 1 tox acute all year
001TU Static 24 Hr Acute Daphnia magnaDAILY MX <= 1 tox acute all year
001TU Static 24 Hr Acute Pimephales promelasDAILY MX <= 1 tox acute 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