Clean Water Act discharge permit · NPDES IL0047384
ILLINOIS AMERICAN WATER-SUNDALE HILLS STP, Washington, IL: NPDES IL0047384 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
ILLINOIS AMERICAN WATER-SUNDALE HILLS STP, held by ILLINOIS AMERICAN WATER, holds NPDES permit IL0047384, which discharges to Unnamed Tributary Of Farm Creek. EPA’s file records it issued December 30, 2020 and expiring December 31, 2025. 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 | ILLINOIS AMERICAN WATER-SUNDALE HILLS STP |
|---|---|
| Permittee as filed | ILLINOIS AMERICAN WATER |
| NPDES ID | IL0047384 |
| 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 | December 30, 2020 |
| Expiration date | December 31, 2025 |
| Address | Washington, IL 61571 |
| Receiving water | UNNAMED TRIBUTARY OF FARM CREEK |
| Subwatershed | Tenmile Creek-Illinois River (HUC 071300011705) |
| 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
- 11Under a numeric limit
- 10With a violation of any kind
- 7With 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] | 16 | 98 | 85 | April 30, 2022 | 1,100% over the limit |
| Coliform, fecal general | 3 | 45 | 44 | September 30, 2024 | 99,999% over the limit |
| Chlorine, total residual | 3 | 42 | 32 | October 31, 2017 | 1,220% over the limit |
| Oxygen, dissolved [DO] | 8 | 20 | 20 | April 30, 2021 | 67% over the limit |
| Solids, total suspended | 8 | 16 | 7 | August 31, 2015 | 103% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 8 | 4 | March 31, 2016 | 45% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 4 | 4 | February 29, 2008 | 120% over the limit |
| pH | 4 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 4 | 0 | ||
| Flow, total | 1 | 1 | 0 | ||
| Flow | 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 IL0047384.
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 IL0047384 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.