A96/100
NORTH KONA — Water Quality Report 2026
Serving 29,581 people · Hawaii
Water Source
Groundwater
County
—
System ID
HI0000131
Violations
1
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
vanadium | 88.00 µg/L | — | Above Goal |
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2022Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About NORTH KONA
Is NORTH KONA water safe to drink?
NORTH KONA water receives a grade of A (96/100), which is considered excellent. Out of 66 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has NORTH KONA detected?
66 contaminants were tested in NORTH KONA's water. Notable contaminants include vanadium. No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does NORTH KONA have any EPA violations?
Yes, NORTH KONA has 1 EPA violation(s) on record, with the most recent in 2022. Violation types include MR.
How many people does NORTH KONA serve?
NORTH KONA serves approximately 29,581 people, Hawaii. The system provides water to 1 community: North Kona.
What type of water does NORTH KONA provide?
NORTH KONA sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is HI0000131.
How does NORTH KONA compare to other utilities in Hawaii?
NORTH KONA scores 96/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Hawaii state page for a full comparison of water systems.