Clean Water Act discharge permit · NPDES IL0048321
EXELON GENERATION COMPANY LLC, Braceville, IL: NPDES IL0048321 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 12Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
EXELON GENERATION COMPANY LLC holds NPDES permit IL0048321, which discharges to Kankakee River; Mazon River. EPA’s file records it issued July 31, 2014 and expiring July 31, 2019. 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 | EXELON GENERATION COMPANY LLC |
|---|---|
| Permittee as filed | EXELON GENERATION COMPANY LLC |
| NPDES ID | IL0048321 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | July 31, 2014 |
| Expiration date | July 31, 2019 |
| Address | Braceville, IL 60407 |
| Receiving water | KANKAKEE RIVER; MAZON RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | City of Wilmington-Kankakee River (HUC 071200011806) |
| SIC | 4911 – Electric Services |
| Other EPA IDs (FRS) | RCRA handler ILD000806505; ICIS-AIR source IL000197816AAB |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 14Pollutants on file
- 12Under a numeric limit
- 10With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| pH | 12 | 21 | 19 | March 31, 2013 | |
| BOD, 5-day, 20 deg. C | 0 | 6 | 6 | April 30, 2011 | 40% over the limit |
| Solids, total suspended | 18 | 3 | 1 | May 31, 2011 | 43% over the limit |
| Coliform, fecal general | 0 | 1 | 1 | June 30, 1997 | 99,999% over the limit |
| Oxidants, total residual | 8 | 46 | 0 | ||
| Chlorine usage | 8 | 3 | 0 | ||
| Flow, in conduit or thru treatment plant | 30 | 2 | 0 | ||
| Temperature, water deg. fahrenheit | 8 | 2 | 0 | ||
| Chlorine, total residual | 4 | 2 | 0 | ||
| Chlorination duration | 4 | 2 | 0 | ||
| Oil & Grease | 18 | 0 | 0 | ||
| Temperature, length of excursion | 4 | 0 | 0 | ||
| Copper, total [as Cu] | 2 | 0 | 0 | ||
| Iron, total [as Fe] | 2 | 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 IL0048321.
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 IL0048321 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.