Clean Water Act discharge permit · NPDES WI0023469
BROOKFIELD, CITY OF, Brookfield, WI: NPDES WI0023469 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 18Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
BROOKFIELD, CITY OF, held by Brookfield, City of, holds NPDES permit WI0023469, which discharges to Fox R(Ill). EPA’s file records it issued March 25, 2013 and expiring March 31, 2018. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | BROOKFIELD, CITY OF |
|---|---|
| Permittee as filed | Brookfield, City of |
| NPDES ID | WI0023469 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 25, 2013 |
| Expiration date | March 31, 2018 |
| Address | Brookfield, WI 53045 |
| Receiving water | FOX R(ILL) |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | City of Waukesha-Fox River (HUC 071200060105) |
| Program components on file | Biosolids, POTW, Pretreatment |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler WID000608604 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 21Pollutants on file
- 18Under a numeric limit
- 18With a violation of any kind
- 7With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Chloride [as Cl] | 6 | 36 | 36 | March 31, 2025 | 33% over the limit |
| Chlorine, total residual | 3 | 20 | 20 | May 31, 2026 | 689% over the limit |
| Oxygen, dissolved [DO] | 4 | 6 | 6 | November 30, 2024 | 4% over the limit |
| BOD, 5-day, 20 deg. C | 32 | 5 | 5 | July 31, 2025 | 79% over the limit |
| Nitrogen, ammonia total [as N] | 36 | 4 | 4 | July 31, 2011 | 512% over the limit |
| Solids, total suspended | 26 | 4 | 4 | June 30, 2024 | 73% over the limit |
| Phosphorus, total [as P] | 2 | 2 | 2 | January 31, 2007 | 47% over the limit |
| Nickel, total recoverable | 2 | 172 | 0 | ||
| Zinc, total recoverable | 2 | 172 | 0 | ||
| Cadmium, total recoverable | 2 | 172 | 0 | ||
| Lead, total recoverable | 2 | 172 | 0 | ||
| Chromium, total recoverable | 2 | 172 | 0 | ||
| Copper, total recoverable | 2 | 172 | 0 | ||
| Mercury, total recoverable | 2 | 172 | 0 | ||
| Nitrogen, total [as N] | 0 | 86 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 86 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 86 | 0 | ||
| Coliform, fecal general | 1 | 44 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 8Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 10, 2025 | WW SSO - Discharge to Waters | ST6 |
| March 14, 2024 | WW SSO - Discharge to Waters | ST6 |
| March 17, 2023 | WW SSO - Discharge to Waters | ST6 |
| February 27, 2023 | WW SSO - Discharge to Waters | ST6 |
| September 12, 2022 | WW SSO - Discharge to Waters | ST6 |
| May 19, 2022 | WW SSO - Discharge to Waters | ST6 |
| September 5, 2021 | WW SSO - Discharge to Waters | ST6 |
| May 17, 2020 | WW SSO - Discharge to Waters | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID WI0023469 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.