Clean Water Act discharge permit · NPDES WI0031186
ST JOSEPH SANITARY DISTRICT, La Crosse, WI: NPDES WI0031186 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
ST JOSEPH SANITARY DISTRICT, held by St Joseph Sanitary District, holds NPDES permit WI0031186, which discharges to Mormon Cr Via Tr. EPA’s file records it issued December 11, 2013 and expiring December 31, 2018. 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 | ST JOSEPH SANITARY DISTRICT |
|---|---|
| Permittee as filed | St Joseph Sanitary District |
| NPDES ID | WI0031186 |
| 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 | December 11, 2013 |
| Expiration date | December 31, 2018 |
| Address | La Crosse, WI 54601 |
| Receiving water | MORMON CR VIA TR |
| Subwatershed | Mormon Creek (HUC 070600010501) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 13Pollutants on file
- 10Under a numeric limit
- 12With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 0 | 10 | 10 | February 28, 2026 | 431% over the limit |
| Solids, total suspended | 4 | 43 | 9 | March 31, 2025 | 187% over the limit |
| Chloride [as Cl] | 1 | 13 | 5 | December 31, 2022 | 29% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 38 | 4 | January 31, 2026 | 99,999% over the limit |
| Nitrogen, total [as N] | 1 | 12 | 4 | December 31, 2023 | 952% over the limit |
| Coliform, fecal general | 1 | 12 | 3 | October 31, 2025 | 386% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 18 | 0 | ||
| pH | 2 | 16 | 0 | ||
| Phosphorus, total [as P] | 3 | 9 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 9 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 9 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 8 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 29, 2024 | Permit Violations - Violation Specified in Comment | 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 WI0031186 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.