Clean Water Act discharge permit · NPDES WI0021059
CONSOLIDATED KOSHKONONG SANITARY DIST WWTF, Fulton, WI: NPDES WI0021059 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
CONSOLIDATED KOSHKONONG SANITARY DIST WWTF, held by CONSOLIDATED KOSHKONONG SANITARY DISTRICT, holds NPDES permit WI0021059, which discharges to Rock R. EPA’s file records it issued September 11, 2013 and expiring September 30, 2018. 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 | CONSOLIDATED KOSHKONONG SANITARY DIST WWTF |
|---|---|
| Permittee as filed | CONSOLIDATED KOSHKONONG SANITARY DISTRICT |
| NPDES ID | WI0021059 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | September 11, 2013 |
| Expiration date | September 30, 2018 |
| Address | Fulton, WI 53534 |
| Receiving water | ROCK R |
| Subwatershed | Town of Newville-Rock River (HUC 070900021006) |
| 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
- 11Pollutants on file
- 7Under a numeric limit
- 11With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Coliform, fecal general | 0 | 59 | 8 | August 31, 1991 | 99,999% over the limit |
| Chlorine, total residual | 0 | 108 | 3 | June 30, 2019 | 163% over the limit |
| BOD, carbonaceous [5 day, 5 C] | 0 | 63 | 3 | August 31, 2021 | 25% over the limit |
| Phosphorus, total [as P] | 3 | 57 | 3 | June 30, 2022 | 18% over the limit |
| Solids, total suspended | 2 | 74 | 2 | June 30, 2021 | 20% over the limit |
| pH | 2 | 37 | 1 | May 31, 1989 | |
| Flow, in conduit or thru treatment plant | 4 | 72 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 45 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 42 | 0 | ||
| Temperature, water deg. fahrenheit | 0 | 12 | 0 | ||
| Chloride [as Cl] | 1 | 6 | 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 |
|---|---|---|
| November 1, 2024 | WW SSO - Discharge to Waters | ST6 |
| July 29, 2018 | 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.
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 WI0021059 there.
Nearby on the register
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- Discharge permits in Wisconsin
- Every permit record in Wisconsin, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.