Clean Water Act discharge permit · NPDES IL0002291
CATERPILLAR INC - EAST PEORIA FACILITY, East Peoria, IL: NPDES IL0002291 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 19Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
CATERPILLAR INC - EAST PEORIA FACILITY, held by CATERPILLAR INC., holds NPDES permit IL0002291, which discharges to Illinois River. EPA’s file records it issued April 26, 2012 and expiring April 30, 2017. 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 | CATERPILLAR INC - EAST PEORIA FACILITY |
|---|---|
| Permittee as filed | CATERPILLAR INC. |
| NPDES ID | IL0002291 |
| 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 | April 26, 2012 |
| Expiration date | April 30, 2017 |
| Address | East Peoria, IL 61630 |
| Receiving water | ILLINOIS RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Pekin Lake-Illinois River (HUC 071300030304) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 21Pollutants on file
- 19Under a numeric limit
- 21With 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 |
|---|---|---|---|---|---|
| Oil & Grease | 10 | 22 | 9 | November 30, 2024 | 533% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 25 | 8 | February 28, 2011 | 170% over the limit |
| Solids, total suspended | 10 | 30 | 7 | May 31, 2026 | 491% over the limit |
| Oil and grease | 0 | 22 | 6 | September 30, 2008 | 227% over the limit |
| Chlorine, total residual | 4 | 15 | 5 | October 31, 2008 | 99,999% over the limit |
| Iron, total [as Fe] | 4 | 19 | 1 | July 31, 2006 | 5% over the limit |
| Temperature, water deg. fahrenheit | 8 | 4 | 1 | July 31, 2021 | 1% over the limit |
| Flow, in conduit or thru treatment plant | 8 | 26 | 0 | ||
| Cyanide, total [as CN] | 10 | 22 | 0 | ||
| Zinc, total [as Zn] | 10 | 22 | 0 | ||
| Cadmium, total [as Cd] | 10 | 18 | 0 | ||
| Chromium, total [as Cr] | 10 | 18 | 0 | ||
| Lead, total [as Pb] | 10 | 18 | 0 | ||
| Nickel, total [as Ni] | 10 | 18 | 0 | ||
| Silver, total [as Ag] | 10 | 18 | 0 | ||
| Manganese, total [as Mn] | 4 | 18 | 0 | ||
| pH | 8 | 16 | 0 | ||
| Organics, total toxic [TTO] | 0 | 14 | 0 | ||
| Copper, total [as Cu] | 5 | 11 | 0 | ||
| Phenols | 1 | 3 | 0 | ||
| Total toxic organics [TTO] [40 CFR433] | 5 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| February 13, 2026 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
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.
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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 IL0002291 there.
Nearby on the register
- Discharge permits in East Peoria
- Every permit record in East Peoria, A to Z
- Discharge permits in Illinois
- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.