A90/100
MARINE CORPS BASE HAWAII — Water Quality Report 2026
Serving 16,300 people · Hawaii
Water Source
Purchased Groundwater
County
—
System ID
HI0000356
Violations
6
Contaminant Test Results
EPA Violation History
3
Violations (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
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2022 – January 12, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2021 – September 14, 2022Enforcement: Resolving — corrective action underway
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 MARINE CORPS BASE HAWAII
Is MARINE CORPS BASE HAWAII water safe to drink?
MARINE CORPS BASE HAWAII water receives a grade of A (90/100), which is considered excellent. Out of 66 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has MARINE CORPS BASE HAWAII detected?
66 contaminants were tested in MARINE CORPS BASE HAWAII's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does MARINE CORPS BASE HAWAII have any EPA violations?
Yes, MARINE CORPS BASE HAWAII has 6 EPA violation(s) on record, with the most recent in 2022. Violation types include MR, Other, MCL. 1 are health-based violations.
How many people does MARINE CORPS BASE HAWAII serve?
MARINE CORPS BASE HAWAII serves approximately 16,300 people, Hawaii. The system provides water to 1 community: Kaneohe.
What type of water does MARINE CORPS BASE HAWAII provide?
MARINE CORPS BASE HAWAII sources its water from purchased groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is HI0000356.
How does MARINE CORPS BASE HAWAII compare to other utilities in Hawaii?
MARINE CORPS BASE HAWAII scores 90/100 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.