A88/100
HOOLEHUA — Water Quality Report 2026
Serving 2,400 people · Hawaii
Water Source
Groundwater
County
—
System ID
HI0000230
Violations
12
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2020.
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 HOOLEHUA
Is HOOLEHUA water safe to drink?
HOOLEHUA water receives a grade of A (88/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has HOOLEHUA detected?
1 contaminants were tested in HOOLEHUA's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does HOOLEHUA have any EPA violations?
Yes, HOOLEHUA has 12 EPA violation(s) on record, with the most recent in 2020. Violation types include MR, Other.
How many people does HOOLEHUA serve?
HOOLEHUA serves approximately 2,400 people, Hawaii. The system provides water to 1 community: Hoolehua.
What type of water does HOOLEHUA provide?
HOOLEHUA sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is HI0000230.
How does HOOLEHUA compare to other utilities in Hawaii?
HOOLEHUA scores 88/100 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.