A99/100
PAPAIKOU — Water Quality Report 2026
Serving 2,203 people · Hawaii
Water Source
Groundwater
County
—
System ID
HI0000107
Violations
1
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1980.
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 PAPAIKOU
Is PAPAIKOU water safe to drink?
PAPAIKOU water receives a grade of A (99/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has PAPAIKOU detected?
1 contaminants were tested in PAPAIKOU's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does PAPAIKOU have any EPA violations?
Yes, PAPAIKOU has 1 EPA violation(s) on record, with the most recent in 1980. Violation types include Other.
How many people does PAPAIKOU serve?
PAPAIKOU serves approximately 2,203 people, Hawaii. The system provides water to 1 community: Papaikou.
What type of water does PAPAIKOU provide?
PAPAIKOU sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is HI0000107.
How does PAPAIKOU compare to other utilities in Hawaii?
PAPAIKOU scores 99/100 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.