Clean Water Act discharge permit · NPDES WI0022489
FORT ATKINSON WASTEWATER TREATMENT FACILITY, Fort Atkinson, WI: NPDES WI0022489 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 10Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
FORT ATKINSON WASTEWATER TREATMENT FACILITY, held by CITY OF FORT ATKINSON, holds NPDES permit WI0022489, which discharges to Rock R. EPA’s file records it issued May 27, 2014 and expiring June 30, 2019. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | FORT ATKINSON WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | CITY OF FORT ATKINSON |
| NPDES ID | WI0022489 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | May 27, 2014 |
| Expiration date | June 30, 2019 |
| Address | Fort Atkinson, WI 53538 |
| Receiving water | ROCK R |
| Subwatershed | Fort Atkinson-Rock River (HUC 070900021001) |
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
- 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 |
|---|---|---|---|---|---|
| Chlorine, total residual | 3 | 12 | 10 | May 31, 2021 | 347% over the limit |
| BOD, 5-day, 20 deg. C | 5 | 6 | 1 | February 29, 2016 | 25% over the limit |
| Nitrogen, ammonia total [as N] | 2 | 3 | 1 | November 30, 2010 | 76% over the limit |
| Mercury, total recoverable | 2 | 172 | 0 | ||
| Solids, total suspended | 17 | 7 | 0 | ||
| Coliform, fecal general | 1 | 7 | 0 | ||
| Phosphorus, total [as P] | 4 | 3 | 0 | ||
| pH | 2 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 0 | ||
| Nitrogen, total [as N] | 0 | 2 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 2 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 2 | 0 | ||
| Chloride [as Cl] | 4 | 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 |
|---|---|---|
| February 27, 2022 | 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.
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 WI0022489 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.