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Clean Water Act discharge permit · NPDES INP000645

URSCHEL LABORATORIES INC, Chesterton, IN: NPDES INP000645 discharge permit, effluent exceedances, inspections, penalties

URSCHEL LABORATORIES INC holds NPDES permit INP000645, which discharges to Chesterton Potw (E Branch Little Calumet Rv). EPA’s file records it issued October 28, 2019 and expiring January 31, 2025.

URSCHEL LABORATORIES INC, Chesterton, Indiana: Individual industrial user permit INP000645; Administratively continued (past its expiration date and still in force until reissued); issued October 28, 2019, term to January 31, 2025, by IDEM; discharges to CHESTERTON POTW (E BRANCH LITTLE CALUMET RV); Industrial Machinery and Equipment Merchant Wholesalers.

  • Copper, total recoverable: 2 limits, 49 violations of any kind, 49 effluent exceedances, latest July 31, 2026, largest 1,400% over the limit.
  • Zinc, total recoverable: 4 limits, 40 violations of any kind, 40 effluent exceedances, latest July 31, 2026, largest 1,589% over the limit.
  • Oil and grease, hexane extr method: 2 limits, 13 violations of any kind, 13 effluent exceedances, latest August 31, 2024, largest 573% over the limit.
  • Chromium, total recoverable: 2 limits, 8 violations of any kind, 8 effluent exceedances, latest July 31, 2026, largest 102% over the limit.
  • Nickel, total recoverable: 2 limits, 4 violations of any kind, 4 effluent exceedances, latest July 31, 2026, largest 100% over the limit.
  • pH: 2 limits, 5 violations of any kind, 3 effluent exceedances, latest June 30, 2020.
  • Silver total recoverable: 4 limits, 0 violations of any kind, 0 effluent exceedances.
  • Cyanide, total [as CN]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • Selenium, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • Cadmium, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • Lead, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • Total toxic organics [TTO] [40 CFR433]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • September 10, 2026: Effluent Violations - Numeric effluent violation (ST6).
  • September 10, 2026: Reconnaissance without Sampling (S).
  • September 10, 2026: Notice of Noncompliance Issued (State).

URSCHEL LABORATORIES INC among its neighbors

Its county holds 88, 7 of them major permits; INP000645 is a minor permit.

Other permits in the county

Identity

Facility as filedURSCHEL LABORATORIES INC
Permittee as filedURSCHEL LABORATORIES INC
NPDES IDINP000645
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual industrial user permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedOctober 28, 2019
Expiration dateJanuary 31, 2025
Issuing agencyIDEM
AddressChesterton, IN 46304
Receiving waterCHESTERTON POTW (E BRANCH LITTLE CALUMET RV)
NAICS423830 – Industrial Machinery and Equipment Merchant Wholesalers
SIC5084 – Industrial Machinery And Equipment
Other EPA IDs (FRS)RCRA handler INR000138297; ICIS-AIR source IN0000001812700132

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
Copper, total recoverable24949July 31, 20261,400% over the limit
Zinc, total recoverable44040July 31, 20261,589% over the limit
Oil and grease, hexane extr method21313August 31, 2024573% over the limit
Chromium, total recoverable288July 31, 2026102% over the limit
Nickel, total recoverable244July 31, 2026100% over the limit
pH253June 30, 2020
Silver total recoverable400
Cyanide, total [as CN]200
Selenium, total recoverable200
Cadmium, total recoverable200
Lead, total recoverable200
Flow, in conduit or thru treatment plant200
Total toxic organics [TTO] [40 CFR433]200

Inspections, violations and enforcement

DateWhat EPA recordedAgency
September 10, 2026Effluent Violations - Numeric effluent violationST6

Inspections

DateWhat EPA recordedAgency
September 10, 2026Reconnaissance without SamplingS

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

DateWhat EPA recordedAgency
September 10, 2026Notice of Noncompliance IssuedState

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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 Clean Water Act discharge permit NPDES INP000645 for URSCHEL LABORATORIES INC in Chesterton, IN, which is administratively continued and is classed as a minor discharger. The page lists 13 pollutants under a numeric limit and 6 pollutants with an effluent exceedance.