Is Nctams Eastpac 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
MR	Monitoring	Resolved	2008-01-01 → 2010-12-31
MR	Monitoring	Resolved	2008-01-01 → 2010-12-31
MR	Monitoring	Resolved	2008-01-01 → 2010-12-31

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
Copper	248.5 µg/L 19% of the EPA limit 1300 µg/L worst single sample: 277 µg/L	24/48	SYR4	2012–2018
Nitrate	920 µg/L 9.2% of the EPA limit 10000 µg/L	16/16	SYR4	2012–2019
Fluoride	798 µg/L 20% of the EPA limit 4000 µg/L worst single sample: 840 µg/L	7/8	SYR4	2012–2019
Nitrate-Nitrite	891 µg/L 8.9% of the EPA limit 10000 µg/L worst single sample: 900 µg/L	7/7	SYR4	2012–2018
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	5/5	LCR	2021
Dibromochloromethane	1.75 µg/L No EPA limit set worst single sample: 1.8 µg/L	3/8	SYR4	2012–2019
TTHM	3.47 µg/L 4.3% of the EPA limit 80 µg/L worst single sample: 3.6 µg/L	3/8	SYR4	2012–2019
Bromoform	1.76 µg/L No EPA limit set worst single sample: 1.8 µg/L	2/8	SYR4	2012–2019
Barium	2.8 µg/L 0.1% of the EPA limit 2000 µg/L	1/3	SYR4	2012–2017

105 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, TotalBromodichloromethaneChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total 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 Nctams Eastpac

Is Nctams Eastpac tap water safe to drink?

EPA monitoring detected 9 contaminants in Nctams Eastpac'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 Nctams Eastpac's water?

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

How many people does Nctams Eastpac serve?

Nctams Eastpac reports serving 6,470 people in Hawaii, per its EPA record.

Has Nctams Eastpac had any water quality violations?

The EPA has 3 violations on file for Nctams Eastpac, 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.