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Clean Water Act discharge permit · NPDES ILG840178

CENTRAL STONE COMPANY - MARBLEHEAD QUARRY (CS-21), Quincy, IL: NPDES ILG840178 discharge permit, effluent exceedances, inspections, penalties

CENTRAL STONE COMPANY - MARBLEHEAD QUARRY (CS-21), held by CENTRAL STONE COMPANY, holds NPDES permit ILG840178, which discharges to Mill Creek. EPA’s file records it issued March 23, 2012 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 filedCENTRAL STONE COMPANY - MARBLEHEAD QUARRY (CS-21)
Permittee as filedCENTRAL STONE COMPANY
NPDES IDILG840178
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMarch 23, 2012
Expiration dateFebruary 28, 2017
AddressQuincy, IL 62301
Receiving waterMILL CREEK
SubwatershedMill Creek (HUC 071100040203)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Solids, total suspended2111February 28, 202371% over the limit
pH2110
Flow, in conduit or thru treatment plant1100
Offensive Conditions140

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES ILG840178.

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 ILG840178 there.

Nearby on the register

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

What this page shows

This public-records page covers NPDES permit ILG840178, held by CENTRAL STONE COMPANY for the CENTRAL STONE COMPANY - MARBLEHEAD QUARRY (CS-21) in Quincy, IL, with discharges to Mill Creek in subwatershed HUC 071100040203. The permit is listed as administratively continued, with 4 pollutants on file, 4 under a numeric limit, and 1 pollutant with an effluent exceedance.