Clean Water Act discharge permit · NPDES KY0111481

AMERICAN METAL CHEMICAL CORPORATION INC, Owensboro, KY: NPDES KY0111481 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
8Pollutants under a numeric limit
2Pollutants with an effluent exceedance
1Inspections on file
0Formal enforcement actions

AMERICAN METAL CHEMICAL CORPORATION INC, held by Yellow Banks River Terminal LLC, holds NPDES permit KY0111481, which discharges to Ohio River. EPA’s file records it issued August 17, 2016 and expiring September 30, 2021.

AMERICAN METAL CHEMICAL CORPORATION INC, Owensboro, Kentucky: Individual permit KY0111481, held by Yellow Banks River Terminal LLC; Administratively continued (past its expiration date and still in force until reissued); issued August 17, 2016, term to September 30, 2021; discharges to Ohio River; Port and Harbor Operations.

Solids, total suspended: 2 limits, 63 violations of any kind, 1 effluent exceedance, latest June 30, 2026, largest 3% over the limit.
Chloride: 2 limits, 63 violations of any kind, 1 effluent exceedance, latest June 30, 2026, largest 28% over the limit.
pH: 2 limits, 62 violations of any kind, 0 effluent exceedances.
Oil & Grease: 2 limits, 62 violations of any kind, 0 effluent exceedances.
Sulfate, total [as SO4]: 2 limits, 62 violations of any kind, 0 effluent exceedances.
Aluminum, total recoverable: 2 limits, 62 violations of any kind, 0 effluent exceedances.
Manganese, total recoverable: 2 limits, 62 violations of any kind, 0 effluent exceedances.
Flow, in conduit or thru treatment plant: 2 limits, 62 violations of any kind, 0 effluent exceedances.

April 16, 2026: Permit Violations - Violation Specified in Comment (ST6).
April 16, 2026: Evaluation (S).
August 9, 2017: Permit Violations - Violation Specified in Comment (ST6).

AMERICAN METAL CHEMICAL CORPORATION INC among its neighbors

EPA’s permit file holds 14 discharge permits in the Yellow Creek subwatershed (HUC 051402011201), KY0111481 among them. Its county holds 104, 5 of them major permits; KY0111481 is a minor permit.

Other permits in the Yellow Creek subwatershed (HUC 051402011201)

2530 CALUMET TRACE STRIP CENTER, Owensboro: KYR10U484, minor permit, discharging to Horse Fork, permit term to December 31, 2029
KROGER L-756, SUBDIVISION, Owensboro: KYR10T734, minor permit, discharging to Yellow Creek, permit term to December 31, 2029
MARATHON PIPELINE LLC, Owensboro: KY0093726, minor permit, discharging to NA, permit term to March 31, 2015
MIZKAN AMERICA INC. - PROJECT IMAGINE, Owensboro: KYR10U284, minor permit, discharging to Yellow Creek, permit term to December 31, 2029
OHIO COUNTY HEALTHPLEX, Owensboro: KYR10U152, minor permit, discharging to North Fork Muddy Creek, permit term to December 31, 2029
OWENSBORO EAST STP, Owensboro: KYL073377, minor permit, permit term to December 31, 2025
OWENSBORO MUNICIPAL UTILITIES - CAVIN WTP, Owensboro: KYG640207, minor permit, permit term to December 31, 2028
PROJECT IMAGINE, Owensboro: KYR10U301, minor permit, discharging to Ohio River, permit term to December 31, 2029
PUBLIX, Owensboro: KYR10T284, minor permit, discharging to Horse Fork, permit term to December 31, 2029
S&S EARTHSCAPES FUTURE EXPANSION AREA, Owensboro: KYR10T667, minor permit, discharging to Yellow Creek, permit term to December 31, 2029

Identity

Facility as filed	AMERICAN METAL CHEMICAL CORPORATION INC
Permittee as filed	Yellow Banks River Terminal LLC
NPDES ID	KY0111481
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	August 17, 2016
Expiration date	September 30, 2021
Address	Owensboro, KY 42303
Receiving water	Ohio River
Subwatershed	Yellow Creek (HUC 051402011201)
NAICS	488310 – Port and Harbor Operations
SIC	4491 – Marine Cargo Handling

Effluent limits and exceedances

8Pollutants on file
8Under a numeric limit
8With a violation of any kind
2With an effluent exceedance

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 measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Solids, total suspended	2	63	1	June 30, 2026	3% over the limit
Chloride	2	63	1	June 30, 2026	28% over the limit
pH	2	62	0
Oil & Grease	2	62	0
Sulfate, total [as SO4]	2	62	0
Aluminum, total recoverable	2	62	0
Manganese, total recoverable	2	62	0
Flow, in conduit or thru treatment plant	2	62	0

Inspections, violations and enforcement

2Single-event violations

Date	What EPA recorded	Agency
April 16, 2026	Permit Violations - Violation Specified in Comment	ST6
August 9, 2017	Permit Violations - Violation Specified in Comment	ST6

Inspections

Date	What EPA recorded	Agency
April 16, 2026	Evaluation	S

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 KY0111481.

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

This public-records page covers Clean Water Act discharge permit NPDES KY0111481, held by Yellow Banks River Terminal LLC for American Metal Chemical Corporation Inc in Owensboro, KY, which discharges to the Ohio River. The page lists 8 pollutants under a numeric limit and 2 pollutants with an effluent exceedance, and its permit status is administratively continued, with the permit issued August 17, 2016 and expiring September 30, 2021.