Clean Water Act discharge permit · NPDES WI0023744
DEERFIELD WASTEWATER TREATMENT FACILITY, Deerfield, WI: NPDES WI0023744 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
DEERFIELD WASTEWATER TREATMENT FACILITY, held by VILLAGE OF DEERFIELD, holds NPDES permit WI0023744, which discharges to Mud Cr Via Drain. EPA’s file records it issued November 7, 2013 and expiring September 30, 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 | DEERFIELD WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | VILLAGE OF DEERFIELD |
| NPDES ID | WI0023744 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | November 7, 2013 |
| Expiration date | September 30, 2018 |
| Address | Deerfield, WI 53531 |
| Receiving water | MUD CR VIA DRAIN |
| Subwatershed | Mud Creek (HUC 070900020402) |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 9Pollutants on file
- 8Under a numeric limit
- 9With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| Copper, total recoverable | 0 | 13 | 9 | May 31, 2024 | 143% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 88 | 8 | May 31, 2026 | 98% over the limit |
| Chloride [as Cl] | 3 | 65 | 5 | October 31, 2024 | 7% over the limit |
| Phosphorus, total [as P] | 3 | 65 | 3 | April 30, 2026 | 80% over the limit |
| Solids, total suspended | 2 | 41 | 1 | June 30, 1992 | 10% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 80 | 0 | ||
| pH | 2 | 40 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 20 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 6 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES WI0023744.
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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How we handle your data → Privacy
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 WI0023744 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.