BALDWIN WASTEWATER TREATMENT F — NPDES permit WI0026891: limits, due date and EPA's record

NPDES permit WI0026891 · Minor POTW · expired, expires 2024-09-30 · EPA's file as of 2026-09-19

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 2024-09-30 and is expired: 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

Last period with anything received: 2026-06-30. Most often over: BOD, 5-day, 20 deg. C (2), Solids, total suspended (1).

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among WI permits in EPA's filings — check your permit).

Limits in force (19)

Outfall	Parameter	Statistic	Limit	Months
001	Oxygen, dissolved [DO]	DAILY MN	>= 4 mg/L	all year
001	BOD, 5-day, 20 deg. C	MO AVG	<= 15 mg/L	all year
001	BOD, 5-day, 20 deg. C	DAILY MX	<= 30 mg/L	all year
001	pH	DAILY MN	>= 6 SU	all year
001	pH	DAILY MX	<= 9 SU	all year
001	Solids, total suspended	MO AVG	<= 20 mg/L	all year
001	Solids, total suspended	DAILY MX	<= 30 mg/L	all year
001	Nitrogen, organic total [as N]	QB	report only	all year
001	Nitrogen, Kjeldahl, total [as N]	QB	report only	all year
001	Nitrite + Nitrate total [as N]	QB	report only	all year
001	Chloride [as Cl]	QB	report only	all year
001	Solids, total dissolved	QB	report only	all year
001	Coliform, fecal general	GEO MEAN	<= 400 #/100mL	all year
701	BOD, 5-day, 20 deg. C	MO AVG	report only	all year
701	BOD, 5-day, 20 deg. C	MO MAX	report only	all year
701	Solids, total suspended	MO AVG	report only	all year
701	Solids, total suspended	MO MAX	report only	all year
701	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
701	Flow, in conduit or thru treatment plant	MO MAX	report only	all year