Clean Water Act discharge permit · NPDES WI0028100
SHIOCTON WASTEWATER TREATMENT, Shiocton, WI: NPDES WI0028100 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
SHIOCTON WASTEWATER TREATMENT holds NPDES permit WI0028100, which discharges to Wolf R. EPA’s file records it issued November 17, 2008 and expiring September 30, 2013. 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 | SHIOCTON WASTEWATER TREATMENT |
|---|---|
| Permittee as filed | SHIOCTON WASTEWATER TREATMENT |
| NPDES ID | WI0028100 |
| 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 17, 2008 |
| Expiration date | September 30, 2013 |
| Address | Shiocton, WI 54170 |
| Receiving water | WOLF R |
| Subwatershed | Village of Shiocton-Wolf River (HUC 040302021403) |
| 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
- 8Pollutants on file
- 6Under a numeric limit
- 7With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 4 | 85 | 17 | September 30, 2025 | 99,999% over the limit |
| Solids, total suspended | 4 | 76 | 8 | October 31, 2023 | 248% over the limit |
| Nitrogen, ammonia total [as N] | 1 | 22 | 4 | February 28, 2025 | 21% over the limit |
| Chlorine, total residual | 0 | 22 | 4 | August 31, 2024 | 99,999% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 68 | 0 | ||
| Coliform, fecal general | 0 | 55 | 0 | ||
| pH | 2 | 34 | 0 | ||
| Phosphorus, total [as P] | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 28, 2019 | 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 WI0028100 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.