Is Joint Base Pearl Harbor-Hickam Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Federal government
Counties served: Honolulu

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2015-11-01 → 2015-11-30
MCL	Health-based	Resolved	2015-11-01 → 2015-11-30
MCL	Health-based	Resolved	2015-11-01 → 2015-11-30
MCL	Health-based	Archived	1992-04-01 → 1992-04-30
MCL	Health-based	Archived	1992-04-01 → 1992-04-30
MCL	Health-based	Archived	1992-04-01 → 1992-04-30
MCL	Health-based	Archived	1992-04-01 → 1992-04-30
Other	Monitoring	Unaddressed	2021-11-29
MR	Monitoring	Resolved	2018-01-01 → 2018-12-31
MR	Monitoring	Resolved	2018-01-01 → 2018-12-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Nitrate	2500 µg/L 25% of the EPA limit 10000 µg/L	52/54	SYR4	2012–2019
TTHM	13.78 µg/L 17% of the EPA limit 80 µg/L worst single sample: 35 µg/L	48/65	SYR4	2012–2019
Copper	112.4 µg/L 8.6% of the EPA limit 1300 µg/L worst single sample: 136 µg/L	44/105	SYR4	2012–2019
Bromoform	9.805 µg/L No EPA limit set worst single sample: 13.4 µg/L	42/57	SYR4	2012–2019
Nitrate-Nitrite	2460 µg/L 25% of the EPA limit 10000 µg/L worst single sample: 2500 µg/L	23/24	SYR4	2012–2018
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	20/20	LCR	2023
Fluoride	861.5 µg/L 22% of the EPA limit 4000 µg/L worst single sample: 870 µg/L	18/26	SYR4	2012–2019
Dibromochloromethane	3.2 µg/L No EPA limit set	14/57	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	1.97 µg/L 3.3% of the EPA limit 60 µg/L worst single sample: 2.3 µg/L	12/62	SYR4	2012–2019
Monobromoacetic Acid	1.51 µg/L No EPA limit set worst single sample: 1.6 µg/L	7/54	SYR4	2012–2019
Dibromoacetic Acid	1.575 µg/L No EPA limit set worst single sample: 1.7 µg/L	6/54	SYR4	2012–2019
Chromium	10.86 µg/L 11% of the EPA limit 100 µg/L worst single sample: 12 µg/L	5/12	SYR4	2012–2017
Barium	15.313 µg/L 0.8% of the EPA limit 2000 µg/L worst single sample: 15.97 µg/L	3/12	SYR4	2012–2017
Chlordane	0.3590 µg/L 18% of the EPA limit 2 µg/L worst single sample: 0.3600 µg/L	3/17	SYR4	2012–2017
Arsenic	1.195 µg/L 12% of the EPA limit 10 µg/L worst single sample: 1.2 µg/L	2/12	SYR4	2012–2017
1,2-DIBROMO-3-CHLOROPROPANE	0.0140 µg/L 7% of the EPA limit 0.2000 µg/L	1/21	SYR4	2012–2017
Bromodichloromethane	1.5 µg/L No EPA limit set	1/57	SYR4	2012–2019
Chloroform	32 µg/L No EPA limit set	1/57	SYR4	2012–2019
Gross Beta Particle Activity	2.4 pCi/L No EPA limit set	1/4	SYR4	2012–2018
Heptachlor Epoxide	0.0200 µg/L 10% of the EPA limit 0.2000 µg/L	1/16	SYR4	2012–2017

94 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: ENG, SHERRI
Phone: 808-471-3858
Email: [email protected]

Frequently asked questions about Joint Base Pearl Harbor-Hickam

Is Joint Base Pearl Harbor-Hickam tap water safe to drink?

EPA monitoring detected 20 contaminants in Joint Base Pearl Harbor-Hickam's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Joint Base Pearl Harbor-Hickam's water?

EPA monitoring detected Nitrate, TTHM, Copper, Bromoform, Nitrate-Nitrite, and others. The full list with the level and data source for each is above.

How many people does Joint Base Pearl Harbor-Hickam serve?

Joint Base Pearl Harbor-Hickam reports serving 65,230 people in Hawaii, per its EPA record.

Has Joint Base Pearl Harbor-Hickam had any water quality violations?

The EPA has 27 violations on file for Joint Base Pearl Harbor-Hickam, of which 7 are health-based (a contaminant limit or required treatment was breached) and 1 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.