Clean Water Act discharge permit · NPDES WI0024503
LANCASTER WASTEWATER TREATMENT FACILITY, Lancaster, WI: NPDES WI0024503 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
LANCASTER WASTEWATER TREATMENT FACILITY, held by LANCASTER WASTEWATER TREATMENT, holds NPDES permit WI0024503, which discharges to Pigeon Cr. 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 | LANCASTER WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | LANCASTER WASTEWATER TREATMENT |
| NPDES ID | WI0024503 |
| 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 | Lancaster, WI 53813 |
| Receiving water | PIGEON CR |
| Subwatershed | Pigeon Creek (HUC 070600030202) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 0Under a numeric limit
- 11With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 0 | 88 | 24 | April 30, 2024 | 387% over the limit |
| Phosphorus, total [as P] | 0 | 23 | 7 | March 31, 2023 | 62% over the limit |
| Chlorine, total residual | 0 | 7 | 7 | June 30, 1992 | 40% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 65 | 1 | December 31, 1991 | 690% over the limit |
| Temperature, water deg. fahrenheit | 0 | 73 | 0 | ||
| pH | 0 | 32 | 0 | ||
| Flow, in conduit or thru treatment plant | 0 | 32 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 16 | 0 | ||
| Chloride [as Cl] | 0 | 6 | 0 | ||
| Copper, total recoverable | 0 | 6 | 0 | ||
| Coliform, fecal general | 0 | 2 | 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
- 12Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 17, 2025 | WW SSO - Discharge to Waters | ST6 |
| October 1, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| July 27, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| October 1, 2019 | WW SSO - Discharge to Waters | ST6 |
| October 10, 2018 | WW SSO - Discharge to Waters | ST6 |
| October 1, 2018 | WW SSO - Discharge to Waters | ST6 |
| September 20, 2018 | WW SSO - Discharge to Waters | ST6 |
| September 4, 2018 | WW SSO - Discharge to Waters | ST6 |
| September 1, 2018 | WW SSO - Discharge to Waters | ST6 |
| August 16, 2018 | WW SSO - Discharge to Waters | ST6 |
| June 10, 2018 | WW SSO - Discharge to Waters | ST6 |
| July 21, 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.
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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 WI0024503 there.
Nearby on the register
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- Every permit record in Lancaster, A to Z
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- Every permit record in Wisconsin, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.