Clean Water Act discharge permit · NPDES ILG840123

ILLINOIS CEMENT CO - DIMMICK MINE, La Salle, IL: NPDES ILG840123 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
4Pollutants under a numeric limit
2Pollutants with an effluent exceedance

ILLINOIS CEMENT CO - DIMMICK MINE, held by ILLINOIS CEMENT CO, holds NPDES permit ILG840123, which discharges to Unnamed Trib To Little Vermilion. EPA’s file records it issued February 15, 2013 and expiring February 28, 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	ILLINOIS CEMENT CO - DIMMICK MINE
Permittee as filed	ILLINOIS CEMENT CO
NPDES ID	ILG840123
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	February 15, 2013
Expiration date	February 28, 2017
Address	La Salle, IL 61301
Receiving water	UNNAMED TRIB TO LITTLE VERMILION
Subwatershed	Little Vermilion River (HUC 071300010304)
Other EPA IDs (FRS)	RCRA handler ILD065237463; ICIS-AIR source IL000099030AAZ

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

Effluent limits and exceedances

4Pollutants on file
4Under a numeric limit
4With a violation of any kind
2With 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	2	21	3	March 31, 2025	40% over the limit
pH	2	19	1	September 30, 2023
Offensive Conditions	1	12	0
Flow, in conduit or thru treatment plant	1	8	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 ILG840123.

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 ILG840123 there.

Nearby on the register

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

This public-records page covers the Clean Water Act NPDES discharge permit ILG840123 held by ILLINOIS CEMENT CO for the ILLINOIS CEMENT CO - DIMMICK MINE in La Salle, IL, with a status of Administratively continued and a Minor Discharger class of 4. The page lists 2 pollutants under a numeric limit and 2 pollutants with an effluent exceedance, and it cites the permit's issue date of February 15, 2013 and expiration date of February 28, 2017. The receiving water is UNNAMED TRIB TO LITTLE VERMILION, within the Little Vermilion River subwatershed (HUC 071300010304).