Is Haena-Wainiha Tap Water Safe? Quality Report

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

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
MR	Monitoring	Resolved	2013-01-01 → 2013-01-31
MR	Monitoring	Resolved	2013-01-01 → 2013-01-31
MR	Monitoring	Resolved	2013-01-01 → 2013-01-31
MR	Monitoring	Archived	2000-01-01 → 2003-12-08

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
Copper	1212.8 µg/L 93% of the EPA limit 1300 µg/L worst single sample: 1717 µg/L	57/77	SYR4	2014–2019
Nitrate	470 µg/L 4.7% of the EPA limit 10000 µg/L	20/42	SYR4	2012–2019
Lead	4.614 µg/L 31% of the EPA limit 15 µg/L worst single sample: 6.09 µg/L	9/76	SYR4	2014–2019
Nitrate-Nitrite	466 µg/L 4.7% of the EPA limit 10000 µg/L worst single sample: 470 µg/L	9/20	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	6/6	LCR	2023
Chromium	7.58 µg/L 7.6% of the EPA limit 100 µg/L worst single sample: 7.73 µg/L	2/5	SYR4	2016–2018
TTHM	3.215 µg/L 4% of the EPA limit 80 µg/L worst single sample: 3.3 µg/L	2/9	SYR4	2012–2019
Bromodichloromethane	0.7400 µg/L No EPA limit set	1/9	SYR4	2012–2019
Bromoform	1.6 µg/L No EPA limit set	1/9	SYR4	2012–2019
Chloroform	2.6 µg/L No EPA limit set	1/9	SYR4	2012–2019

74 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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic 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: KNOFF, MARK
Phone: 808-245-5403
Email: [email protected]

Frequently asked questions about Haena-Wainiha

Is Haena-Wainiha tap water safe to drink?

EPA monitoring detected 10 contaminants in Haena-Wainiha'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 Haena-Wainiha's water?

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

How many people does Haena-Wainiha serve?

Haena-Wainiha reports serving 833 people in Hawaii, per its EPA record.

Has Haena-Wainiha had any water quality violations?

The EPA has 4 violations on file for Haena-Wainiha, of which 0 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.