Clean Water Act discharge permit · NPDES HIF002244

MAPUNAPUNA WATER SYSTEM IMPROVEMENTS, PART II - BOARD OF WATER SUPPLY, HI: NPDES HIF002244 discharge permit, effluent exceedances, inspections, penalties

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

MAPUNAPUNA WATER SYSTEM IMPROVEMENTS, PART II - BOARD OF WATER SUPPLY, held by City and County of Honolulu, Board of Water Supply, holds NPDES permit HIF002244, which discharges to Cch Municipal Separate Storm Sewer System [Ms4] (I. EPA’s file records it issued March 18, 2008 and expiring October 21, 2012.

MAPUNAPUNA WATER SYSTEM IMPROVEMENTS, PART II - BOARD OF WATER SUPPLY, Hawaii: Coverage under a general permit HIF002244, held by City and County of Honolulu, Board of Water Supply; Administratively continued (past its expiration date and still in force until reissued); issued March 18, 2008, term to October 21, 2012, by Hawaii Dept of Health, Clean Water Branch; discharges to CCH MUNICIPAL SEPARATE STORM SEWER SYSTEM [MS4] (I.

Other permits held by City and County of Honolulu, Board of Water Supply

HALEIWA WELLS GRANULAR ACTIVATED CARBON (GAC) WATER TREATMENT FACILITY: HI0021950, issued March 23, 2026
MAPUNAPUNA WATER SYSTEM IMPROVEMENTS, PART II - BOARD OF WATER SUPPLY: HIF005566, issued April 16, 2008
MAPUNAPUNA WATER SYSTEM IMPROVEMENTS, PART II, HONOLULU, OAHU, HAWAII: HIF005809, issued February 5, 2009
WARD AVENUE:12-INCH AND 8-INCH WATER MAINS - BOARD OF WATER SUPPLY: HIF005904, issued May 26, 2009
HAHAIONE WATER SYSTEM IMPROVEMENTS: HIF008182, issued June 30, 2011
BOARD OF WATER SUPPLY FOSTER VILLAGE WATER SYSTEM IMPROVEMENTS, PART III: HIF009635, issued January 17, 2012
BOARD OF WATER SUPPLY FOSTER VILLAGE WATER SYSTEM IMPROVEMENTS, PART III: HIF009636, issued January 17, 2012
NUNU STREET: 8-INCH MAIN, KAILUA (KOOLAUPOKO), OAHU, HAWAII: HIF009777, issued September 20, 2012
IHILOA LOOP AND EHUPUA PLACE AREA WATER SYSTEM IMPROVEMENTS: HIF015083, issued June 18, 2026
IHILOA LOOP AND EHUPUA PLACE AREA WATER SYSTEM IMPROVEMENTS, Honolulu: HIF015086, issued June 15, 2026

MAPUNAPUNA WATER SYSTEM IMPROVEMENTS, PART II - BOARD OF WATER SUPPLY among its neighbors

EPA’s permit file holds 250 discharge permits in the Moanalua Stream subwatershed (HUC 200600000305), HIF002244 among them. Its county holds 814, 13 of them major permits; HIF002244 is a minor permit.

Other permits in the Moanalua Stream subwatershed (HUC 200600000305)

134 NAKOLO PLACE, Unknown: HI19BF831, minor permit, discharging to AHUA LAGOON, permit term to May 20, 2024
1807 HONOLULU - AHUA STREET SITE, Honolulu: HI18BF538, minor permit, discharging to MOANALUA STREAM, permit term to April 15, 2023
2 G GROUP 422-105/107, Unknown: HI21BG475, minor permit, permit term to September 26, 2026
422-107, Unknown: HI19BF994, minor permit, discharging to KEEP LAGOON, permit term to December 12, 2024
90 NAKOLO PLACE - PACI MAINTENACE FACILITY / HANGAR, Honolulu: HI25BH750, minor permit, permit term to February 19, 2030
AA GSE SHOP, Honolulu: HI22BG904, minor permit, permit term to July 27, 2027
AHFH - ALIAMANU MILITARY RESERVATION - VALLEY VIEW NEIGHBORHOOD, Unknown: HIF006126, minor permit, discharging to MOANALUA STREAM (UPPER), SALT LAKE, permit term to October 21, 2012
AIR SERVICE HAWAII HONOLULU BASE, Honolulu: HIF013825, minor permit, permit term to January 14, 2027
AIRPORT IMPROVEMENTS, Honolulu: HIF014197, minor permit, discharging to KEEHI LAGOON, permit term to February 8, 2024
AIRPORT IMPROVEMENTS, Honolulu: HIF014999, minor permit, permit term to January 28, 2029

What the register holds for MAPUNAPUNA WATER SYSTEM IMPROVEMENTS, PART II - BOARD OF WATER SUPPLY: its NPDES ID, its permit type and status, its dates, its address, Hawaii, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES HIF002244.

Identity

Facility as filed	MAPUNAPUNA WATER SYSTEM IMPROVEMENTS, PART II - BOARD OF WATER SUPPLY
Permittee as filed	City and County of Honolulu, Board of Water Supply
NPDES ID	HIF002244
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	March 18, 2008
Expiration date	October 21, 2012
Issuing agency	Hawaii Dept of Health, Clean Water Branch
Address	HI
Receiving water	CCH MUNICIPAL SEPARATE STORM SEWER SYSTEM [MS4] (I
Receiving water impaired	303(D) Listed
Subwatershed	Moanalua Stream (HUC 200600000305)

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 HIF002244.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES HIF002244.

Inspections

EPA’s inspection file holds no inspection for NPDES HIF002244.

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 HIF002244.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, HIF002244.

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Nearby on the register

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

1.0% of Honolulu County's general permit coverages carry a violation. Honolulu County holds 299 such coverages, and 5.0% of all of them were issued before MAPUNAPUNA WATER SYSTEM IMPROVEMENTS, PART II - BOARD OF WATER SUPPLY. The Moanalua Stream subwatershed holds 250 NPDES permits, including this permit.