Clean Water Act discharge permit · NPDES ING490022

MARTIN MARIETTA KOKOMO STONE, Kokomo, IN: NPDES ING490022 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
5Pollutants under a numeric limit
1Pollutants with an effluent exceedance

MARTIN MARIETTA KOKOMO STONE, held by Martin Marietta Kokomo Stone, holds NPDES permit ING490022, which discharges to Wildcat Creek. EPA’s file records it issued December 31, 2020 and expiring September 30, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	MARTIN MARIETTA KOKOMO STONE
Permittee as filed	Martin Marietta Kokomo Stone
NPDES ID	ING490022
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	December 31, 2020
Expiration date	September 30, 2025
Issuing agency	IDEM
Address	Kokomo, IN 46902
Receiving water	Wildcat Creek
Receiving water impaired	303(D) Listed
Subwatershed	Kitty Run-Wildcat Creek (HUC 051201070403)
NAICS	212312 – Crushed and Broken Limestone Mining and Quarrying
SIC	1422 – Crushed And Broken Limestone
Other EPA IDs (FRS)	ICIS-AIR source IN0000001806700010

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

5Pollutants on file
5Under a numeric limit
4With a violation of any kind
1With 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	3	13	11	September 30, 2025	770% over the limit
pH	6	4	0
Flow, in conduit or thru treatment plant	6	3	0
Flow, total	3	1	0
Duration of discharge	3	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 ING490022.

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 ING490022 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers Clean Water Act NPDES permit ING490022, held by Martin Marietta Kokomo Stone in Kokomo, IN, which discharges to Wildcat Creek and is administratively continued past its September 30, 2025 expiration date. The page lists 5 as the discharger class, 1 pollutant under a numeric limit, and 1 pollutant with an effluent exceedance.