Is Kekaha-Waimea 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	2011-01-01 → 2013-12-31
MR	Monitoring	Resolved	2011-01-01 → 2013-12-31
MR	Monitoring	Resolved	2011-01-01 → 2013-12-31
MR	Monitoring	Resolved	2011-01-01 → 2013-12-31
MR	Monitoring	Resolved	2011-01-01 → 2013-12-31
MR	Monitoring	Resolved	2011-01-01 → 2013-12-31
MR	Monitoring	Resolved	2011-01-01 → 2013-12-31
MR	Monitoring	Resolved	2011-01-01 → 2013-12-31
MR	Monitoring	Resolved	2011-01-01 → 2013-12-31
MR	Monitoring	Resolved	2011-01-01 → 2013-12-31

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	2600 µg/L 26% of the EPA limit 10000 µg/L worst single sample: 2700 µg/L	92/92	SYR4	2012–2019
Nitrate-Nitrite	2600 µg/L 26% of the EPA limit 10000 µg/L worst single sample: 2700 µg/L	46/46	SYR4	2012–2019
Chromium	11.49 µg/L 11% of the EPA limit 100 µg/L worst single sample: 12 µg/L	18/18	SYR4	2012–2019
Copper	386 µg/L 30% of the EPA limit 1300 µg/L worst single sample: 526 µg/L	15/79	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	9/9	LCR	2021
Bromoform	7.03 µg/L No EPA limit set worst single sample: 7.8 µg/L	8/9	SYR4	2012–2019
Fluoride	226.5 µg/L 5.7% of the EPA limit 4000 µg/L worst single sample: 230 µg/L	8/52	SYR4	2012–2019
TTHM	7.03 µg/L 8.8% of the EPA limit 80 µg/L worst single sample: 7.8 µg/L	8/9	SYR4	2012–2019
Barium	23.76 µg/L 1.2% of the EPA limit 2000 µg/L worst single sample: 26 µg/L	3/18	SYR4	2012–2019
Dibromoacetic Acid	1.77 µg/L No EPA limit set worst single sample: 1.8 µg/L	3/8	SYR4	2012–2019
Lead	7.703 µg/L 51% of the EPA limit 15 µg/L worst single sample: 7.98 µg/L	3/79	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	1.77 µg/L 3% of the EPA limit 60 µg/L worst single sample: 1.8 µg/L	3/8	SYR4	2012–2019
Cyanide	25 µg/L 13% of the EPA limit 200 µg/L	1/22	SYR4	2012–2019
Chloroform	0.5000 µg/L No EPA limit set	1/9	SYR4	2012–2019
Gross Alpha, Excl. Radon And U	13 pCi/L 87% of the EPA limit 15 pCi/L	1/7	SYR4	2016–2019
Gross Beta Particle Activity	4.1 pCi/L No EPA limit set	1/7	SYR4	2016–2019

98 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: KNOFF, MARK
Phone: 808-245-5403
Email: [email protected]

Frequently asked questions about Kekaha-Waimea

Is Kekaha-Waimea tap water safe to drink?

EPA monitoring detected 16 contaminants in Kekaha-Waimea'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 Kekaha-Waimea's water?

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

How many people does Kekaha-Waimea serve?

Kekaha-Waimea reports serving 5,998 people in Hawaii, per its EPA record.

Has Kekaha-Waimea had any water quality violations?

The EPA has 21 violations on file for Kekaha-Waimea, 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.