Is Hana Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Maui

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	Archived	1998-01-01 → 1998-01-31
MCL	Health-based	Archived	1998-01-01 → 1998-01-31
MCL	Health-based	Archived	1998-01-01 → 1998-01-31
MCL	Health-based	Archived	1998-01-01 → 1998-01-31
MCL	Health-based	Archived	1998-01-01 → 1998-01-31
MCL	Health-based	Archived	1998-01-01 → 1998-01-31
MCL	Health-based	Archived	1995-09-01 → 1995-09-30
MCL	Health-based	Archived	1995-09-01 → 1995-09-30
MCL	Health-based	Archived	1995-09-01 → 1995-09-30
MCL	Health-based	Archived	1992-05-01 → 1992-05-31

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	250 µg/L 2.5% of the EPA limit 10000 µg/L	48/50	SYR4	2012–2019
Nitrate-Nitrite	245.5 µg/L 2.5% of the EPA limit 10000 µg/L worst single sample: 250 µg/L	24/25	SYR4	2012–2019
Bromoform	2.55 µg/L No EPA limit set worst single sample: 3.1 µg/L	12/18	SYR4	2013–2019
TTHM	4.25 µg/L 5.3% of the EPA limit 80 µg/L worst single sample: 4.8 µg/L	12/18	SYR4	2013–2019
Dibromochloromethane	1.42 µg/L No EPA limit set worst single sample: 1.6 µg/L	10/18	SYR4	2013–2019
Bromodichloromethane	1.0655 µg/L No EPA limit set worst single sample: 1.1 µg/L	4/18	SYR4	2013–2019
Chloroform	0.9540 µg/L No EPA limit set worst single sample: 0.9800 µg/L	3/18	SYR4	2013–2019
Fluoride	149 µg/L 3.7% of the EPA limit 4000 µg/L worst single sample: 150 µg/L	3/25	SYR4	2012–2019
Gross Beta Particle Activity	4.53 pCi/L No EPA limit set worst single sample: 4.6 pCi/L	3/7	SYR4	2015–2018
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	3/3	LCR	2020
Gross Alpha, Excl. Radon And U	0.9400 pCi/L 6.3% of the EPA limit 15 pCi/L	1/7	SYR4	2015–2018

73 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: PEARSON, JEFF
Phone: 808-270-7834
Email: [email protected]

Frequently asked questions about Hana

Is Hana tap water safe to drink?

EPA monitoring detected 11 contaminants in Hana'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 Hana's water?

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

How many people does Hana serve?

Hana reports serving 1,284 people in Hawaii, per its EPA record.

Has Hana had any water quality violations?

The EPA has 35 violations on file for Hana, of which 13 are health-based (a contaminant limit or required treatment was breached) and 0 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.