Clean Water Act discharge permit · NPDES IL0000116
MEREDOSIA ENERGY CENTER, Meredosia, IL: NPDES IL0000116 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 26Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
MEREDOSIA ENERGY CENTER, held by AMERENENERGY MEDINA VALLEY COGEN LLC, holds NPDES permit IL0000116, which discharges to Illinois River. EPA’s file records it issued October 26, 2017 and expiring September 30, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | MEREDOSIA ENERGY CENTER |
|---|---|
| Permittee as filed | AMERENENERGY MEDINA VALLEY COGEN LLC |
| NPDES ID | IL0000116 |
| 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 | October 26, 2017 |
| Expiration date | September 30, 2022 |
| Address | Meredosia, IL 62665 |
| Receiving water | ILLINOIS RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Martin Branch (HUC 071300110302) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 29Pollutants on file
- 26Under a numeric limit
- 25With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 4 | 27 | 15 | June 30, 2018 | 490% over the limit |
| Copper, total [as Cu] | 2 | 16 | 15 | July 31, 2011 | 127% over the limit |
| Boron, total [as B] | 2 | 6 | 5 | October 31, 2002 | 37% over the limit |
| Oil and grease | 0 | 3 | 3 | January 31, 2003 | 148% over the limit |
| Oil & Grease | 6 | 13 | 1 | April 30, 2007 | 142% over the limit |
| pH | 4 | 9 | 1 | May 31, 2013 | |
| BOD, 5-day, 20 deg. C | 0 | 1 | 1 | July 31, 2003 | 10% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 12 | 0 | ||
| Chlorine, total residual | 0 | 7 | 0 | ||
| Sulfate, total [as SO4] | 2 | 3 | 0 | ||
| Mercury, total [as Hg] | 4 | 1 | 0 | ||
| Arsenic, total [as As] | 2 | 1 | 0 | ||
| Barium, total [as Ba] | 2 | 1 | 0 | ||
| Cadmium, total [as Cd] | 2 | 1 | 0 | ||
| Chromium, hexavalent [as Cr] | 2 | 1 | 0 | ||
| Chromium, total [as Cr] | 2 | 1 | 0 | ||
| Iron, total [as Fe] | 2 | 1 | 0 | ||
| Iron, dissolved [as Fe] | 2 | 1 | 0 | ||
| Lead, total [as Pb] | 2 | 1 | 0 | ||
| Manganese, total [as Mn] | 2 | 1 | 0 | ||
| Nickel, total [as Ni] | 2 | 1 | 0 | ||
| Silver, total [as Ag] | 2 | 1 | 0 | ||
| Zinc, total [as Zn] | 2 | 1 | 0 | ||
| Selenium, total [as Se] | 2 | 1 | 0 | ||
| Phenolics, total recoverable | 2 | 1 | 0 | ||
| Cyanide, total [as CN] | 2 | 0 | 0 | ||
| Cyanide, free [amenable to chlorination] | 2 | 0 | 0 | ||
| Chloride [as Cl] | 2 | 0 | 0 | ||
| Fluoride, total [as F] | 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 IL0000116.
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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Start the watch
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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 IL0000116 there.
Nearby on the register
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- Every permit record in Meredosia, A to Z
- Discharge permits in Illinois
- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.