Clean Water Act discharge permit · NPDES WI0031259
OAKDALE WASTEWATER TREATMENT FACILITY, Oakdale, WI: NPDES WI0031259 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
OAKDALE WASTEWATER TREATMENT FACILITY, held by OAKDALE WASTEWATER TREATMENT F, holds NPDES permit WI0031259, which discharges to Lemonweir R Via. EPA’s file records it issued April 28, 2005 and expiring March 31, 2010. 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 | OAKDALE WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | OAKDALE WASTEWATER TREATMENT F |
| NPDES ID | WI0031259 |
| 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 | April 28, 2005 |
| Expiration date | March 31, 2010 |
| Address | Oakdale, WI 54649 |
| Receiving water | LEMONWEIR R VIA |
| Subwatershed | Bear Creek (HUC 070700031601) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 8Pollutants on file
- 0Under a numeric limit
- 8With 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 | 0 | 60 | 20 | October 31, 2024 | |
| Solids, total suspended | 0 | 151 | 4 | May 31, 1993 | 65% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 144 | 3 | June 30, 2022 | 42% over the limit |
| Hardness, total [as CaCO3] | 0 | 90 | 0 | ||
| Flow, in conduit or thru treatment plant | 0 | 36 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 20 | 0 | ||
| Copper, total recoverable | 0 | 19 | 0 | ||
| Phosphorus, total [as P] | 0 | 18 | 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 WI0031259.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, WI0031259.
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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 WI0031259 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.