Clean Water Act discharge permit · NPDES WI0020397
EAST TROY WASTEWATER TREATMENT FACILITY, East Troy, WI: NPDES WI0020397 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
EAST TROY WASTEWATER TREATMENT FACILITY, held by EAST TROY WASTEWATER TREATMENT, holds NPDES permit WI0020397, which discharges to Fox R. EPA’s file records it issued July 1, 2008 and expiring June 30, 2013. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | EAST TROY WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | EAST TROY WASTEWATER TREATMENT |
| NPDES ID | WI0020397 |
| 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 | July 1, 2008 |
| Expiration date | June 30, 2013 |
| Address | East Troy, WI 53120 |
| Receiving water | FOX R |
| Subwatershed | Spring Creek-Honey Creek (HUC 071200060502) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 10Pollutants on file
- 0Under a numeric limit
- 10With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| pH | 0 | 54 | 14 | September 30, 2021 | |
| Chloride [as Cl] | 0 | 72 | 10 | October 31, 2019 | 5% over the limit |
| Oxygen, dissolved [DO] | 0 | 36 | 5 | November 30, 1990 | 12% over the limit |
| Chlorine, total residual | 0 | 5 | 5 | April 30, 1993 | 143% over the limit |
| Phosphorus, total [as P] | 0 | 64 | 0 | ||
| BOD, 5-day, 20 deg. C | 0 | 40 | 0 | ||
| Solids, total suspended | 0 | 40 | 0 | ||
| Flow, in conduit or thru treatment plant | 0 | 40 | 0 | ||
| Temperature, water deg. fahrenheit | 0 | 7 | 0 | ||
| Coliform, fecal general | 0 | 1 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 23, 2020 | Monitoring Violations - Analysis not Conducted | ST6 |
| July 12, 2017 | 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 WI0020397 there.
Nearby on the register
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- Every permit record in Wisconsin, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.