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Clean Water Act discharge permit · NPDES INRM00047

MULZER CRUSHED STONE INC MT VERNON, Mount Vernon, IN: NPDES INRM00047 discharge permit, effluent exceedances, inspections, penalties

MULZER CRUSHED STONE INC MT VERNON, held by Mulzer Crushed Stone Inc Mt Vernon, holds NPDES permit INRM00047, which discharges to Ohio River. EPA’s file records it issued January 17, 2020 and expiring November 3, 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.

What the register holds for MULZER CRUSHED STONE INC MT VERNON: its NPDES ID, its permit type and status, its dates, its address in Mount Vernon, Indiana, its receiving water, and 8 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES INRM00047.

Identity

Facility as filedMULZER CRUSHED STONE INC MT VERNON
Permittee as filedMulzer Crushed Stone Inc Mt Vernon
NPDES IDINRM00047
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedJanuary 17, 2020
Expiration dateNovember 3, 2025
Issuing agencyIDEM
AddressMount Vernon, IN 47620
Receiving waterOhio River
SubwatershedBeaverdam Creek-Ohio River (HUC 051402020605)
NAICS212312 – Crushed and Broken Limestone Mining and Quarrying
SIC1422 – Crushed And Broken Limestone

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same 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
pH100
Solids, total suspended100
Oil and grease, hexane extr method100
Nitrogen, Kjeldahl, total [as N]100
Nitrite + Nitrate total [as N]100
Phosphorus, total [as P]100
BOD, carbonaceous [5 day, 20 C]100
Chemical Oxygen Demand [COD]100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES INRM00047.

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 INRM00047.

Inspections

EPA’s inspection file holds no inspection for NPDES INRM00047.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES INRM00047.

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 INRM00047 there.

MULZER CRUSHED STONE INC MT VERNON, Mount Vernon, Indiana: Individual permit INRM00047, held by Mulzer Crushed Stone Inc Mt Vernon; Industrial stormwater; Administratively continued (past its expiration date and still in force until reissued); issued January 17, 2020, term to November 3, 2025, by IDEM; discharges to Ohio River; Crushed and Broken Limestone Mining and Quarrying.

  • pH: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Solids, total suspended: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Oil and grease, hexane extr method: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Nitrogen, Kjeldahl, total [as N]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Nitrite + Nitrate total [as N]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Phosphorus, total [as P]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • BOD, carbonaceous [5 day, 20 C]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Chemical Oxygen Demand [COD]: 1 limit, 0 violations of any kind, 0 effluent exceedances.

Indiana holds 1,027 Industrial stormwater coverages of this permit type in EPA’s file; 610 were issued before INRM00047.

Coverages issued nearest INRM00047

MULZER CRUSHED STONE INC MT VERNON among its neighbors

EPA’s permit file holds 35 discharge permits in the Beaverdam Creek-Ohio River subwatershed (HUC 051402020605), INRM00047 among them. Its county holds 55, 4 of them major permits; INRM00047 is a minor permit.

Other permits in the Beaverdam Creek-Ohio River subwatershed (HUC 051402020605)

Nearby on the register

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

What this page shows

This public-records page covers NPDES permit INRM00047, held by Mulzer Crushed Stone Inc Mt Vernon in Mount Vernon, Indiana, which discharges to Ohio River and is listed as administratively continued. The register lists 8 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, with the permit's issue and expiration dates as recorded in EPA's permit file.