A87/100
ALIAMANU — Water Quality Report 2026
Serving 6,406 people · Hawaii
Water Source
Purchased Groundwater
County
—
System ID
HI0000337
Violations
5
Contaminant Test Results
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Violation related to Turbidity
When: November 29, 2021Rule: 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 ALIAMANU
Is ALIAMANU water safe to drink?
ALIAMANU water receives a grade of A (87/100), which is considered excellent. Out of 38 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has ALIAMANU detected?
38 contaminants were tested in ALIAMANU's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does ALIAMANU have any EPA violations?
Yes, ALIAMANU has 5 EPA violation(s) on record, with the most recent in 2021. Violation types include Other, MR, MCL. 2 are health-based violations.
How many people does ALIAMANU serve?
ALIAMANU serves approximately 6,406 people, Hawaii. The system provides water to 1 community: Salt Lake.
What type of water does ALIAMANU provide?
ALIAMANU sources its water from purchased groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is HI0000337.
How does ALIAMANU compare to other utilities in Hawaii?
ALIAMANU scores 87/100 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.