Brookfield, City of

NPDES permit WI0023469 · Major POTW · expired, expires 2023-12-31 · 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.

This permit expired on 2023-12-31 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

2values over a limit
176required values missing, on 20 form(s)
10of 28 forms filed late

Last period with anything received: 2026-06-30. Most often over: Chlorine, total residual (2).

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (112)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 8 mg/L Jul, Aug, Sep
001Oxygen, dissolved [DO]DAILY MN >= 8.5 mg/L Jun, Oct
001Oxygen, dissolved [DO]DAILY MN >= 9.5 mg/L Jan, Feb
001Oxygen, dissolved [DO]DAILY MN >= 9 mg/L Mar, Apr, May, Nov, Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 18 mg/L Mar
001BOD, 5-day, 20 deg. CWKLY AVG <= 10 mg/L Sep
001BOD, 5-day, 20 deg. CWKLY AVG <= 7.7 mg/L Jul
001BOD, 5-day, 20 deg. CWKLY AVG <= 14 mg/L May, Oct
001BOD, 5-day, 20 deg. CWKLY AVG <= 11 mg/L Jun
001BOD, 5-day, 20 deg. CWKLY AVG <= 20 mg/L Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 19 mg/L Nov
001BOD, 5-day, 20 deg. CWKLY AVG <= 17 mg/L Apr
001BOD, 5-day, 20 deg. CWKLY AVG <= 8.8 mg/L Aug
001BOD, 5-day, 20 deg. CWKLY AVG <= 23 mg/L Jan, Feb
001BOD, 5-day, 20 deg. CMO AVG report only Jun
001BOD, 5-day, 20 deg. CDAILY MX report only Jun
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedWKLY AVG <= 18 mg/L Mar
001Solids, total suspendedWKLY AVG <= 17 mg/L Apr
001Solids, total suspendedWKLY AVG <= 11 mg/L Jun
001Solids, total suspendedWKLY AVG <= 23 mg/L Jan, Feb
001Solids, total suspendedWKLY AVG <= 19 mg/L Nov
001Solids, total suspendedWKLY AVG <= 10 mg/L Jul, Aug, Sep
001Solids, total suspendedWKLY AVG <= 14 mg/L May, Oct
001Solids, total suspendedWKLY AVG <= 20 mg/L Dec
001Solids, total suspendedMO AVG report only Jun
001Solids, total suspendedDAILY MX report only Jun
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]QB report only all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 15 mg/L Mar
001Nitrogen, ammonia total [as N]WKLY AVG <= 14 mg/L Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 15 mg/L Jan
001Nitrogen, ammonia total [as N]WKLY AVG <= 14 mg/L Apr
001Nitrogen, ammonia total [as N]WKLY AVG <= 4.4 mg/L Jul
001Nitrogen, ammonia total [as N]WKLY AVG <= 11 mg/L May
001Nitrogen, ammonia total [as N]WKLY AVG <= 7.9 mg/L Jun
001Nitrogen, ammonia total [as N]WKLY AVG <= 16 mg/L Feb
001Nitrogen, ammonia total [as N]WKLY AVG <= 7.3 mg/L Sep
001Nitrogen, ammonia total [as N]WKLY AVG <= 5 mg/L Aug
001Nitrogen, ammonia total [as N]WKLY AVG <= 12 mg/L Nov
001Nitrogen, ammonia total [as N]WKLY AVG <= 11 mg/L Oct
001Nitrogen, ammonia total [as N]MO AVG <= 7.6 mg/L Mar
001Nitrogen, ammonia total [as N]MO AVG <= 6.2 mg/L Dec
001Nitrogen, ammonia total [as N]MO AVG <= 6.9 mg/L Jan
001Nitrogen, ammonia total [as N]MO AVG <= 8.1 mg/L Apr
001Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L Jul
001Nitrogen, ammonia total [as N]MO AVG <= 5.6 mg/L May
001Nitrogen, ammonia total [as N]MO AVG <= 3.8 mg/L Jun
001Nitrogen, ammonia total [as N]MO AVG <= 7.4 mg/L Feb
001Nitrogen, ammonia total [as N]MO AVG <= 3.2 mg/L Sep
001Nitrogen, ammonia total [as N]MO AVG <= 2.2 mg/L Aug
001Nitrogen, ammonia total [as N]MO AVG <= 5.8 mg/L Nov
001Nitrogen, ammonia total [as N]MO AVG <= 5 mg/L Oct
001Nitrogen, ammonia total [as N]DAILY MX report only Jun
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]QB report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]QB report only all year
001Phosphorus, total [as P]MO AVG <= .225 mg/L all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Chloride [as Cl]WKLY AVG <= 620 mg/L Jan, Feb, Mar, Apr, Dec
001Chloride [as Cl]WKLY AVG <= 590 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Chloride [as Cl]MO AVG report only May, Jun, Jul, Aug, Sep, Oct, Nov
001Chloride [as Cl]DAILY MX report only May, Jun, Jul, Aug, Sep, Oct, Nov
001Chloride [as Cl]MO AVG report only Jan, Feb, Mar, Apr, Dec
001Chloride [as Cl]MO AVG report only May, Jun, Jul, Aug, Sep, Oct, Nov
001Chloride [as Cl]DAILY MX report only Jan, Feb, Mar, Apr, Dec
001Chloride [as Cl]DAILY MX report only May, Jun, Jul, Aug, Sep, Oct, Nov
001Nickel, total recoverableDAILY MX report only all year
001Nickel, total recoverableQB report only all year
001Zinc, total recoverableDAILY MX report only all year
001Zinc, total recoverableQB report only all year
001Cadmium, total recoverableDAILY MX report only all year
001Cadmium, total recoverableQB report only all year
001Lead, total recoverableDAILY MX report only all year
001Lead, total recoverableQB report only all year
001Chromium, total recoverableDAILY MX report only all year
001Chromium, total recoverableQB report only all year
001Copper, total recoverableDAILY MX report only all year
001Copper, total recoverableQB 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 residualWKLY AVG <= 7.5 ug/L May, Jun, Jul, Aug, Sep
001Chlorine, total residualMO AVG <= 7.5 ug/L May, Jun, Jul, Aug, Sep
001Chlorine, total residualDAILY MX <= 38 ug/L May, Jun, Jul, Aug, Sep
001Mercury, total recoverableDAILY MX report only all year
001Mercury, total recoverableQB report only all year
001Coliform, fecal generalWK GEOMN <= 972 #/100mL May, Jun, Jul, Aug, Sep
001Coliform, fecal generalGEO MEAN <= 400 #/100mL May, Jun, Jul, Aug, Sep
701BOD, 5-day, 20 deg. CMO AVG report only all year
701BOD, 5-day, 20 deg. CDAILY MX report only all year
701Solids, total suspendedMO AVG report only all year
701Solids, total suspendedDAILY MX report only all year
701Nickel, total recoverableDAILY MX report only all year
701Nickel, total recoverableQB report only all year
701Zinc, total recoverableDAILY MX report only all year
701Zinc, total recoverableQB report only all year
701Cadmium, total recoverableDAILY MX report only all year
701Cadmium, total recoverableQB report only all year
701Lead, total recoverableDAILY MX report only all year
701Lead, total recoverableQB report only all year
701Chromium, total recoverableDAILY MX report only all year
701Chromium, total recoverableQB report only all year
701Copper, total recoverableDAILY MX report only all year
701Copper, total recoverableQB report only all year
701Flow, in conduit or thru treatment plantMO AVG report only all year
701Flow, in conduit or thru treatment plantDAILY MX report only all year
701Mercury, total recoverableDAILY MX report only all year
701Mercury, total recoverableQB report only 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