Clean Water Act discharge permit · NPDES IL0004316
SOUTHERN ILLINOIS POWER COOPERTIVE - MARION STATION, Marion, IL: NPDES IL0004316 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 13Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
SOUTHERN ILLINOIS POWER COOPERTIVE - MARION STATION, held by SOUTHERN ILL POWER-MARION, holds NPDES permit IL0004316, which discharges to Little Saline Creek&Lake Of Egypt. EPA’s file records it issued January 1, 2007 and expiring February 29, 2012. 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 | SOUTHERN ILLINOIS POWER COOPERTIVE - MARION STATION |
|---|---|
| Permittee as filed | SOUTHERN ILL POWER-MARION |
| NPDES ID | IL0004316 |
| 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 | January 1, 2007 |
| Expiration date | February 29, 2012 |
| Address | Marion, IL 62959 |
| Receiving water | LITTLE SALINE CREEK&LAKE OF EGYPT |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Lake of Egypt (HUC 051402040101) |
| Other EPA IDs (FRS) | RCRA handler ILD007813900; ICIS-AIR source IL000199856AAC |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 14Pollutants on file
- 13Under a numeric limit
- 14With a violation of any kind
- 8With 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 |
|---|---|---|---|---|---|
| Cadmium, total [as Cd] | 0 | 17 | 15 | April 30, 2001 | 1,500% over the limit |
| Iron, total [as Fe] | 8 | 26 | 14 | February 29, 2016 | 690% over the limit |
| Copper, total [as Cu] | 6 | 18 | 10 | April 30, 2010 | 359% over the limit |
| Solids, total dissolved- 180 deg. C | 2 | 13 | 10 | April 30, 2014 | 105% over the limit |
| Solids, total suspended | 4 | 11 | 7 | July 31, 2004 | 67% over the limit |
| Chlorine, total residual | 1 | 4 | 3 | April 30, 2004 | 70% over the limit |
| Oil and grease | 4 | 8 | 1 | March 31, 2006 | 190% over the limit |
| pH | 4 | 5 | 1 | April 30, 2002 | |
| Flow, in conduit or thru treatment plant | 10 | 12 | 0 | ||
| Boron, total [as B] | 2 | 3 | 0 | ||
| Mercury, total [as Hg] | 2 | 3 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 1 | 0 | ||
| Fluoride, total [as F] | 1 | 1 | 0 | ||
| Zinc, total [as Zn] | 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 IL0004316.
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 IL0004316 there.
Nearby on the register
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- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.