Public water system record
Waipahu-Ewa-Waianae
Serves Kapolei, Waianae, East Kapolei and 15 more places, Honolulu County, HI · 217,479 people served
Federal records show no health-based violations and no monitoring or reporting issues for Waipahu-Ewa-Waianae in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- Waipahu-Ewa-Waianae draws water from 49 wells.
- Record on file since 1992, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 41,785 service lines.
Check whether Waipahu-Ewa-Waianae serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016, and no monitoring or reporting violations either.
Full record since 1992
EPA's records for Waipahu-Ewa-Waianae go back to 1992. Before October 19, 2016 they list no health-based violations and 6 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 2 |
| 2010 to October 18, 2016 | 0 | 4 |
Where the water comes from
Waipahu-Ewa-Waianae draws water from 49 wells. 2 smaller public systems such as schools, businesses or campgrounds buy water from Waipahu-Ewa-Waianae.
Annual water quality report
Waipahu-Ewa-Waianae must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Hawaii.
Certified drinking water labs by state EPA guidance for private wells