Clean Water Act discharge permit · NPDES WI0021091
POYNETTE WASTEWATER TREATMENT FACILITY, Poynette, WI: NPDES WI0021091 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
POYNETTE WASTEWATER TREATMENT FACILITY, held by POYNETTE WASTEWATER TREATMENT, holds NPDES permit WI0021091, which discharges to Rowan Cr. EPA’s file records it issued March 30, 2010 and expiring March 31, 2015. 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 | POYNETTE WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | POYNETTE WASTEWATER TREATMENT |
| NPDES ID | WI0021091 |
| 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 | March 30, 2010 |
| Expiration date | March 31, 2015 |
| Address | Poynette, WI 53955 |
| Receiving water | ROWAN CR |
| Subwatershed | Rowan Creek (HUC 070700050202) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 7Pollutants on file
- 0Under a numeric limit
- 7With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 0 | 25 | 25 | July 31, 1993 | 596% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 9 | 9 | December 31, 1992 | 149% over the limit |
| Oxygen, dissolved [DO] | 0 | 18 | 1 | March 31, 1989 | 6% over the limit |
| pH | 0 | 34 | 0 | ||
| Phosphorus, total [as P] | 0 | 17 | 0 | ||
| Chloride [as Cl] | 0 | 5 | 0 | ||
| Temperature, water deg. fahrenheit | 0 | 4 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 23, 2022 | WW SSO - Discharge to Waters | ST6 |
| May 1, 2020 | WW SSO - Discharge to Waters | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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 WI0021091 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.