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Clean Water Act discharge permit · NPDES INRM00035

MULZER CRUSHED STONE INC GRIFFIN, Griffin, IN: NPDES INRM00035 discharge permit, effluent exceedances, inspections, penalties

MULZER CRUSHED STONE INC GRIFFIN, held by Mulzer Crushed Stone Inc Griffin, holds NPDES permit INRM00035, which discharges to Black River. EPA’s file records it issued January 17, 2020 and expiring February 11, 2025.

MULZER CRUSHED STONE INC GRIFFIN, Griffin, Indiana: Individual permit INRM00035, held by Mulzer Crushed Stone Inc Griffin; Industrial stormwater; Effective; issued January 17, 2020, term to February 11, 2025, by IDEM; discharges to Black River; Industrial Sand Mining.

  • 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 INRM00035.

Coverages issued nearest INRM00035

MULZER CRUSHED STONE INC GRIFFIN among its neighbors

EPA’s permit file holds 6 discharge permits in the Town of Griffin-Black River subwatershed (HUC 051201130503), INRM00035 among them. Its county holds 55, 4 of them major permits; INRM00035 is a minor permit.

Other permits in the Town of Griffin-Black River subwatershed (HUC 051201130503)

What the register holds for MULZER CRUSHED STONE INC GRIFFIN: its NPDES ID, its permit type and status, its dates, its address in Griffin, 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 INRM00035.

Identity

Facility as filedMULZER CRUSHED STONE INC GRIFFIN
Permittee as filedMulzer Crushed Stone Inc Griffin
NPDES IDINRM00035
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedJanuary 17, 2020
Expiration dateFebruary 11, 2025
Issuing agencyIDEM
AddressGriffin, IN 47616
Receiving waterBlack River
SubwatershedTown of Griffin-Black River (HUC 051201130503)
NAICS212322 – Industrial Sand Mining
SIC1446 – Industrial Sand

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 INRM00035.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES INRM00035.

Inspections

EPA’s inspection file holds no inspection for NPDES INRM00035.

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 INRM00035.

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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 INRM00035 held by Mulzer Crushed Stone Inc Griffin in Griffin, Indiana, which discharges to Black River and is listed as an Effective individual Minor discharger permit issued January 17, 2020 and expiring February 11, 2025. The register lists 8 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and it shows no effluent or single-event violation for this permit.