Clean Water Act discharge permit · NPDES IL0001414

CATERPILLAR INC - MOSSVILLE PLANT, Mossville, IL: NPDES IL0001414 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
25Pollutants under a numeric limit
3Pollutants with an effluent exceedance

CATERPILLAR INC - MOSSVILLE PLANT, held by CATERPILLAR INC, holds NPDES permit IL0001414, which discharges to Illinois River. EPA’s file records it issued July 23, 2014 and expiring July 31, 2019. 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 - MOSSVILLE PLANT
Permittee as filed	CATERPILLAR INC
NPDES ID	IL0001414
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 23, 2014
Expiration date	July 31, 2019
Address	Mossville, IL 61552
Receiving water	ILLINOIS RIVER
Receiving water impaired	303(D) Listed
Subwatershed	Blue Creek-Illinois River (HUC 071300011703)
Other EPA IDs (FRS)	RCRA handler ILD005244777; ICIS-AIR source IL000143810AAB

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

26Pollutants on file
25Under a numeric limit
5With a violation of any kind
3With 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
BOD, 5-day, 20 deg. C	4	2	2	December 31, 2014	30% over the limit
Oil and grease	4	2	2	June 30, 2024	121% over the limit
Solids, total suspended	4	1	1	October 31, 2023	14% over the limit
Cyanide, weak acid, dissociable	0	8	0
Organics, total toxic [TTO]	2	5	0
Cyanide, total [as CN]	6	0	0
Cadmium, total [as Cd]	6	0	0
Chromium, total [as Cr]	6	0	0
Copper, total [as Cu]	6	0	0
Iron, total [as Fe]	6	0	0
Lead, total [as Pb]	6	0	0
Nickel, total [as Ni]	6	0	0
Silver, total [as Ag]	6	0	0
Zinc, total [as Zn]	6	0	0
Manganese, total [as Mn]	4	0	0
pH	2	0	0
Fluoride, total [as F]	2	0	0
Arsenic, total [as As]	2	0	0
Barium, total [as Ba]	2	0	0
Thallium, total [as Tl]	2	0	0
Antimony, total [as Sb]	2	0	0
Selenium, total [as Se]	2	0	0
Phenolics, total recoverable	2	0	0
Flow, in conduit or thru treatment plant	2	0	0
Mercury, total [as Hg]	2	0	0
Coliform, fecal general	1	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 IL0001414.

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

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, IL0001414.

Start the watch

How we handle your data → Privacy

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 IL0001414 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This public-records page covers Clean Water Act discharge permit NPDES IL0001414, held by CATERPILLAR INC for its Mossville plant and discharging to the Illinois River, with the permit shown as administratively continued and a Major Discharger class. The page lists 3 pollutants under a numeric limit and 3 pollutants with an effluent exceedance, with the permit's issue and expiration dates recorded from EPA's permit file as of September 15, 2026.