Clean Water Act discharge permit · NPDES HIF014475

WAIKOLOA KAMAKOA WASTEWATER TREATMENT PLANT, HI: NPDES HIF014475 discharge permit, effluent exceedances, inspections, penalties

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

WAIKOLOA KAMAKOA WASTEWATER TREATMENT PLANT, held by Hawaii Water Serice Company, Inc., holds NPDES permit HIF014475. EPA’s file records it issued August 28, 2024 and expiring January 28, 2029. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	WAIKOLOA KAMAKOA WASTEWATER TREATMENT PLANT
Permittee as filed	Hawaii Water Serice Company, Inc.
NPDES ID	HIF014475
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	August 28, 2024
Expiration date	January 28, 2029
Issuing agency	Hawaii Dept of Health, Clean Water Branch
Address	HI
Subwatershed	Puako Bay (HUC 200100001405)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

0Pollutants on file
0Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

EPA’s limits and effluent violation files hold no pollutant row for NPDES HIF014475.

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

2Single-event violations

Date	What EPA recorded	Agency
June 16, 2026	Effluent Violations - Unauthorized Discharge	ST6
June 16, 2026	WW Storm Water Construction - Failure to properly operate and maintain BMPs	ST6

Inspections

Date	What EPA recorded	Agency
June 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

Date	What EPA recorded	Agency
September 21, 2026	Letter of Violation/ Warning Letter	State

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID HIF014475 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This public-records page covers Clean Water Act discharge permit NPDES HIF014475 for the Waikoloa Kamakoa Wastewater Treatment Plant in HI, held by Hawaii Water Serice Company, Inc., with a status of Effective and a Minor Discharger class. The page lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, with the permit issued August 28, 2024 and expiring January 28, 2029.