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Clean Water Act discharge permit · NPDES IN0063657

RADIO MATERIALS CORPORATION, Attica, IN: NPDES IN0063657 discharge permit, effluent exceedances, inspections, penalties

RADIO MATERIALS CORPORATION, held by RMC GROUNDWATER REMEDIATION PROJECT, holds NPDES permit IN0063657, which discharges to Riley Lake & Unt To Wabash River. EPA’s file records it issued June 2, 2015 and expiring July 31, 2020.

RADIO MATERIALS CORPORATION, Attica, Indiana: Individual permit IN0063657, held by RMC GROUNDWATER REMEDIATION PROJECT; Administratively continued (past its expiration date and still in force until reissued); issued June 2, 2015, term to July 31, 2020, by IDEM; discharges to RILEY LAKE & UNT TO WABASH RIVER.

  • Trichloroethene: 1 limit, 10 violations of any kind, 2 effluent exceedances, latest March 31, 2021, largest 62% over the limit.
  • pH: 2 limits, 16 violations of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 2 limits, 14 violations of any kind, 0 effluent exceedances.
  • Vinyl chloride: 1 limit, 8 violations of any kind, 0 effluent exceedances.
  • Tetrachloroethene: 1 limit, 8 violations of any kind, 0 effluent exceedances.
  • cis-1,2-Dichloroethene: 1 limit, 8 violations of any kind, 0 effluent exceedances.
  • Flow, total: 1 limit, 7 violations of any kind, 0 effluent exceedances.

RADIO MATERIALS CORPORATION among its neighbors

EPA’s permit file holds 5 discharge permits in the Turkey Run-Wabash River subwatershed (HUC 051201080510), IN0063657 among them. Its county holds 20, 0 of them major permits; IN0063657 is a minor permit.

Other permits in the Turkey Run-Wabash River subwatershed (HUC 051201080510)

Identity

Facility as filedRADIO MATERIALS CORPORATION
Permittee as filedRMC GROUNDWATER REMEDIATION PROJECT
NPDES IDIN0063657
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
IssuedJune 2, 2015
Expiration dateJuly 31, 2020
Issuing agencyIDEM
AddressAttica, IN 47918
Receiving waterRILEY LAKE & UNT TO WABASH RIVER
SubwatershedTurkey Run-Wabash River (HUC 051201080510)
Other EPA IDs (FRS)RCRA handler IND005477021

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
Trichloroethene1102March 31, 202162% over the limit
pH2160
Flow, in conduit or thru treatment plant2140
Vinyl chloride180
Tetrachloroethene180
cis-1,2-Dichloroethene180
Flow, total170

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES IN0063657.

Inspections

EPA’s inspection file holds no inspection for NPDES IN0063657.

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 IN0063657.

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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 IN0063657, held by RMC Groundwater Remediation Project for Radio Materials Corporation in Attica, IN, and discharging to Riley Lake & UNT to Wabash River within the Turkey Run-Wabash River subwatershed (HUC 051201080510). The permit is listed as administratively continued, a Minor discharger class 7 permit, with 1 pollutant under a numeric limit and 1 pollutant with an effluent exceedance.