Clean Water Act discharge permit · NPDES IL0054321
SOUTH WILMINGTON EAST BROOKLYN STP, South Wilmington, IL: NPDES IL0054321 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
SOUTH WILMINGTON EAST BROOKLYN STP, held by SOUTH WILMINGTON EAST BROOKLYN SANITARY DISTRICT, holds NPDES permit IL0054321, which discharges to East Fork Of The Mazon River. EPA’s file records it issued January 8, 2019 and expiring December 31, 2023. 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 | SOUTH WILMINGTON EAST BROOKLYN STP |
|---|---|
| Permittee as filed | SOUTH WILMINGTON EAST BROOKLYN SANITARY DISTRICT |
| NPDES ID | IL0054321 |
| 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 | January 8, 2019 |
| Expiration date | December 31, 2023 |
| Address | South Wilmington, IL 60474 |
| Receiving water | EAST FORK OF THE MAZON RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Crave Creek-Granary Creek (HUC 071200050204) |
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 |
|---|---|---|---|---|---|
| Solids, total suspended | 9 | 124 | 60 | April 30, 2023 | 1,067% over the limit |
| Coliform, fecal general | 4 | 65 | 49 | July 31, 2024 | 99,999% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 8 | 74 | 22 | July 31, 2022 | 156% over the limit |
| Oxygen, dissolved [DO] | 10 | 47 | 16 | June 30, 2021 | 88% over the limit |
| pH | 4 | 27 | 1 | December 31, 2019 | |
| Chlorine, total residual | 2 | 14 | 1 | June 30, 2016 | 5,500% over the limit |
| Flow, in conduit or thru treatment plant | 6 | 52 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 17 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 12 | 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 IL0054321.
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 IL0054321 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.