Clean Water Act discharge permit · NPDES IL0024732
ILLINOIS AMERICAN WATER COMPANY - RIVER GRANGE WRF, Saint Charles, IL: NPDES IL0024732 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
ILLINOIS AMERICAN WATER COMPANY - RIVER GRANGE WRF, held by ILLINOIS AMERICAN WATER COMPANY, holds NPDES permit IL0024732, which discharges to Unnamed Trib Of Fox River. EPA’s file records it issued September 25, 2020 and expiring September 30, 2025. 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 | ILLINOIS AMERICAN WATER COMPANY - RIVER GRANGE WRF |
|---|---|
| Permittee as filed | ILLINOIS AMERICAN WATER COMPANY |
| NPDES ID | IL0024732 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Biosolids |
| Issued | September 25, 2020 |
| Expiration date | September 30, 2025 |
| Address | Saint Charles, IL 60174 |
| Receiving water | UNNAMED TRIB OF FOX RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Norton Creek-Fox River (HUC 071200070104) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 9Under a numeric limit
- 9With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 14 | 47 | 29 | April 30, 2026 | 813% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 23 | 13 | April 30, 2026 | 120% over the limit |
| Solids, total suspended | 5 | 16 | 7 | April 30, 2026 | 189% over the limit |
| Coliform, fecal general | 1 | 8 | 6 | July 31, 2026 | 1,050% over the limit |
| Chlorine, total residual | 2 | 8 | 3 | July 31, 2023 | 320% over the limit |
| Oxygen, dissolved [DO] | 5 | 10 | 2 | July 31, 2017 | 22% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 8 | 0 | ||
| pH | 2 | 4 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 1 | 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 IL0024732.
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 IL0024732 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.