Clean Water Act discharge permit · NPDES IL0001589
CITGO PETROLEUM CORPORATION LEMONT REFINERY, Lemont, IL: NPDES IL0001589 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 33Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
CITGO PETROLEUM CORPORATION LEMONT REFINERY, held by CITGO PETROLEUM CORPORATION, holds NPDES permit IL0001589, which discharges to Chicago Sanitary And Ship Canal. EPA’s file records it issued June 10, 2016 and expiring June 30, 2021. 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 | CITGO PETROLEUM CORPORATION LEMONT REFINERY |
|---|---|
| Permittee as filed | CITGO PETROLEUM CORPORATION |
| NPDES ID | IL0001589 |
| 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 | June 10, 2016 |
| Expiration date | June 30, 2021 |
| Address | Lemont, IL 60439 |
| Receiving water | CHICAGO SANITARY AND SHIP CANAL |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Maple Lake-Chicago Sanitary and Ship Canal (HUC 071200040705) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 34Pollutants on file
- 33Under a numeric limit
- 13With 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 | 6 | 31 | 31 | May 31, 2020 | 424% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 4 | 4 | April 30, 2010 | 108% over the limit |
| Nitrogen, ammonia total [as N] | 7 | 28 | 2 | November 30, 2013 | 29% over the limit |
| Chlorine, total residual | 2 | 19 | 2 | April 30, 2013 | 340% over the limit |
| Chromium, hexavalent [as Cr] | 6 | 24 | 1 | February 29, 2008 | 99% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 2 | 5 | 1 | November 30, 2007 | 15% over the limit |
| Flow, in conduit or thru treatment plant | 6 | 6 | 0 | ||
| Phenolics, total recoverable | 0 | 6 | 0 | ||
| Chemical Oxygen Demand [COD] | 2 | 5 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 4 | 0 | ||
| Fluoride, total [as F] | 4 | 2 | 0 | ||
| Solids, total dissolved | 2 | 2 | 0 | ||
| Chromium, total [as Cr] | 4 | 1 | 0 | ||
| Oil & Grease | 6 | 0 | 0 | ||
| Cyanide, total [as CN] | 6 | 0 | 0 | ||
| Phenols | 6 | 0 | 0 | ||
| pH | 4 | 0 | 0 | ||
| Cyanide, weak acid, dissociable | 2 | 0 | 0 | ||
| Sulfide, total [as S] | 2 | 0 | 0 | ||
| Chloride [as Cl] | 2 | 0 | 0 | ||
| Sulfate, total [as SO4] | 2 | 0 | 0 | ||
| Arsenic, total [as As] | 2 | 0 | 0 | ||
| Barium, total [as Ba] | 2 | 0 | 0 | ||
| Cadmium, total [as Cd] | 2 | 0 | 0 | ||
| Copper, total [as Cu] | 2 | 0 | 0 | ||
| Iron, total [as Fe] | 2 | 0 | 0 | ||
| Iron, dissolved [as Fe] | 2 | 0 | 0 | ||
| Lead, total [as Pb] | 2 | 0 | 0 | ||
| Manganese, total [as Mn] | 2 | 0 | 0 | ||
| Nickel, total [as Ni] | 2 | 0 | 0 | ||
| Silver, total [as Ag] | 2 | 0 | 0 | ||
| Zinc, total [as Zn] | 2 | 0 | 0 | ||
| Selenium, total [as Se] | 2 | 0 | 0 | ||
| Mercury, total [as Hg] | 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 IL0001589.
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 IL0001589 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.