Clean Water Act discharge permit · NPDES IL0020672
WINNEBAGO STP, Winnebago, IL: NPDES IL0020672 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
WINNEBAGO STP, held by ROCK RIVER WATER RECLAMATION DISTRICT, holds NPDES permit IL0020672, which discharges to Coolidge Creek. EPA’s file records it issued September 16, 2010 and expiring September 30, 2015. 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 | WINNEBAGO STP |
|---|---|
| Permittee as filed | ROCK RIVER WATER RECLAMATION DISTRICT |
| NPDES ID | IL0020672 |
| 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 | September 16, 2010 |
| Expiration date | September 30, 2015 |
| Address | Winnebago, IL 61088 |
| Receiving water | COOLIDGE CREEK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Coolidge Creek (HUC 070900031601) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 11Under 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 | 5 | 40 | 4 | April 30, 2013 | 192% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 67 | 3 | April 30, 2013 | 60% over the limit |
| Nitrogen, ammonia total [as N] | 18 | 31 | 1 | June 30, 2013 | 5% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 30 | 0 | ||
| pH | 2 | 18 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 8 | 0 | ||
| Chlorine, total residual | 1 | 8 | 0 | ||
| Oxygen, dissolved [DO] | 5 | 0 | 0 | ||
| Nitrogen, total [as N] | 1 | 0 | 0 | ||
| Phosphorus, total [as P] | 1 | 0 | 0 | ||
| Coliform, fecal general | 1 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IL0020672.
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, IL0020672.
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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 IL0020672 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.