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Tap water quality report

Kahili Mountain Park

EPA monitoring tested this supplier for 82 contaminants and detected 5. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

82
contaminants tested
5
detected
175
people served
9
health-based violations
Hawaii rankingsLead in HawaiiPFAS in Hawaii
Water source
Ground water
Ownership
Private
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.

9
health-based violations
15
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2014-03-01 → 2014-03-31
MCL Health-based Resolved 2014-03-01 → 2014-03-31
MCL Health-based Resolved 2014-03-01 → 2014-03-31
MCL Health-based Archived 1995-07-01 → 1995-07-31
MCL Health-based Archived 1995-07-01 → 1995-07-31
MCL Health-based Archived 1991-12-01 → 1991-12-31
MCL Health-based Archived 1991-12-01 → 1991-12-31
MCL Health-based Archived 1991-12-01 → 1991-12-31
MCL Health-based Archived 1991-12-01 → 1991-12-31
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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 8/8 LCR 2022
Copper
384.35 µg/L 30%
of the EPA limit 1300 µg/L
worst single sample: 397 µg/L
2/59 SYR4 2012–2019
Lead
51.7 µg/L 345%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 54 µg/L
2/59 SYR4 2012–2019
Bromoform
1.1 µg/L
No EPA limit set
 1/3 SYR4 2012–2019
TTHM
1.1 µg/L 1.4%
of the EPA limit 80 µg/L
 1/3 SYR4 2012–2019
77 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, TotalBromodichloromethaneChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitrateNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
KNUDSEN TRUST
Phone
808-635-2966
Email
[email protected]

Frequently asked questions about Kahili Mountain Park

Is Kahili Mountain Park tap water safe to drink?

EPA monitoring detected 5 contaminants in Kahili Mountain Park'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 Kahili Mountain Park's water?

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

How many people does Kahili Mountain Park serve?

Kahili Mountain Park reports serving 175 people in Hawaii, per its EPA record.

Has Kahili Mountain Park had any water quality violations?

The EPA has 15 violations on file for Kahili Mountain Park, of which 9 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.