Clean Water Act discharge permit · NPDES WI0073041
LAC COURTE OREILLES, Hayward, WI: NPDES WI0073041 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 13Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
LAC COURTE OREILLES, held by LAC COURTE OREILLES RESERVE WWTP, holds NPDES permit WI0073041. EPA’s file records it issued September 16, 2016 and expiring September 8, 2021. 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 | LAC COURTE OREILLES |
|---|---|
| Permittee as filed | LAC COURTE OREILLES RESERVE WWTP |
| NPDES ID | WI0073041 |
| 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 | September 16, 2016 |
| Expiration date | September 8, 2021 |
| Address | Hayward, WI 54843 |
| Subwatershed | Lac Courte Oreilles (HUC 070500010404) |
| NAICS | 221320 – Sewage Treatment Facilities |
| 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
- 13Pollutants on file
- 13Under a numeric limit
- 13With a violation of any kind
- 3With 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 | 8 | 202 | 2 | May 31, 2024 | |
| BOD, carb-5 day, 20 deg C, percent removal | 2 | 74 | 1 | May 31, 2024 | 19% over the limit |
| E. coli | 4 | 64 | 1 | June 30, 2023 | 2% over the limit |
| Solids, total suspended | 10 | 315 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 10 | 315 | 0 | ||
| Flow, in conduit or thru treatment plant | 6 | 233 | 0 | ||
| Phosphorus, total [as P] | 6 | 155 | 0 | ||
| Temperature, water deg. fahrenheit | 4 | 102 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 87 | 0 | ||
| Rainfall | 2 | 74 | 0 | ||
| Solids, suspended percent removal | 2 | 73 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 72 | 0 | ||
| Outfall observation,visual, y/n response | 2 | 51 | 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
- 7Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 17, 2020 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | EP6 |
| December 17, 2020 | Effluent Violations - Numeric effluent violation | EP6 |
| December 17, 2020 | Management Practice Violations - Failure to Maintain Records | EP6 |
| December 17, 2020 | Permit Violations - Discharge Without a Valid Permit | EP6 |
| December 17, 2020 | Monitoring Violations - Invalid/Unrepresentative Sample | EP6 |
| December 17, 2020 | Monitoring Violations - No Flow Measurement Device | EP6 |
| December 17, 2020 | Management Practice Violations - Failure to Conduct Inspections | EP6 |
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.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.