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Clean Water Act discharge permit · NPDES KY0086665

ZSCHIMMER & SCHWARZ INTERPOLYMER, Louisville, KY: NPDES KY0086665 discharge permit, effluent exceedances, inspections, penalties

ZSCHIMMER & SCHWARZ INTERPOLYMER, held by Zschimmer & Schwarz Interpolymer, holds NPDES permit KY0086665, which discharges to Ohio River. EPA’s file records it issued August 24, 2018 and expiring September 30, 2023.

ZSCHIMMER & SCHWARZ INTERPOLYMER, Louisville, Kentucky: Individual permit KY0086665, held by Zschimmer & Schwarz Interpolymer; Administratively continued (past its expiration date and still in force until reissued); issued August 24, 2018, term to September 30, 2023; discharges to OHIO RIVER; Plastics Material and Resin Manufacturing.

  • Solids, total suspended: 2 limits, 17 violations of any kind, 14 effluent exceedances, latest March 31, 2025, largest 628% over the limit.
  • Zinc, total recoverable: 0 limits, 9 violations of any kind, 7 effluent exceedances, latest January 31, 2018, largest 233% over the limit.
  • Temperature, water deg. fahrenheit: 2 limits, 15 violations of any kind, 1 effluent exceedance, latest June 30, 2025, largest 1% over the limit.
  • pH: 4 limits, 16 violations of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 4 limits, 14 violations of any kind, 0 effluent exceedances.
  • Oil & Grease: 2 limits, 2 violations of any kind, 0 effluent exceedances.
  • Chemical Oxygen Demand [COD]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
  • Hardness, total [as CaCO3]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Oil and grease: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • February 3, 2026: Notice of Violation (State).
  • April 23, 2025: Management Practice Violations - Best Management Practice Deficiencies (ST6).
  • April 23, 2025: Permit Violations - Violation Specified in Comment (ST6).
  • May 29, 2024: Permit Violations - Violation Specified in Comment (ST6).

ZSCHIMMER & SCHWARZ INTERPOLYMER among its neighbors

EPA’s permit file holds 158 discharge permits in the Fall Run-Ohio River subwatershed (HUC 051401010904), KY0086665 among them. Its county holds 625, 10 of them major permits; KY0086665 is a minor permit.

Other permits in the Fall Run-Ohio River subwatershed (HUC 051401010904)

Identity

Facility as filedZSCHIMMER & SCHWARZ INTERPOLYMER
Permittee as filedZschimmer & Schwarz Interpolymer
NPDES IDKY0086665
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
IssuedAugust 24, 2018
Expiration dateSeptember 30, 2023
AddressLouisville, KY 40258
Receiving waterOHIO RIVER
SubwatershedFall Run-Ohio River (HUC 051401010904)
NAICS325211 – Plastics Material and Resin Manufacturing
SIC2821 – Plastics Materials And Resins
Other EPA IDs (FRS)RCRA handler KYD981853807

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
Solids, total suspended21714March 31, 2025628% over the limit
Zinc, total recoverable097January 31, 2018233% over the limit
Temperature, water deg. fahrenheit2151June 30, 20251% over the limit
pH4160
Flow, in conduit or thru treatment plant4140
Oil & Grease220
Chemical Oxygen Demand [COD]220
Hardness, total [as CaCO3]020
Oil and grease020

Inspections, violations and enforcement

DateWhat EPA recordedAgency
April 23, 2025Management Practice Violations - Best Management Practice DeficienciesST6
April 23, 2025Permit Violations - Violation Specified in CommentST6
May 29, 2024Permit Violations - Violation Specified in CommentST6

Inspections

EPA’s inspection file holds no inspection for NPDES KY0086665.

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
February 3, 2026Notice of ViolationState

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Nearby on the register

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

What this page shows

This EPA-derived page covers NPDES permit KY0086665, held by Zschimmer & Schwarz Interpolymer in Louisville, KY, which discharges to the Ohio River and is administratively continued as a Minor Discharger class permit. The facts list 6 for the discharger class, 3 pollutants under a numeric limit, and 3 pollutants with an effluent exceedance.