Public water system record
Waiahole
On record as serving Honolulu County, HI · Serves 300 people
Federal records show 1 health-based violation and 1 monitoring/reporting issue for Waiahole in the last ten years. The most serious issue in this window was a resolved Revised Total Coliform Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 1
Key facts
- Waiahole draws water from 2 wells.
- Most recent enforcement action: boil water order by Hawaii, September 1989.
- Record on file since 2000, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 144 service lines.
Check whether Waiahole 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.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Revised Total Coliform Rule
Contaminant limit exceeded
|
110 | Jan 1, 2020 | Resolved | Yes |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
E. coli
Monitoring and reporting
|
Feb 1, 2020 | Resolved |
Full record since 2000
EPA's records for Waiahole go back to 2000. Before October 19, 2016 they list no health-based violations and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 0 | 1 |
| 2020s | 1 | 1 |
Enforcement actions
Hawaii regulators issued 1 boil water order to Waiahole in 1989. The most recent was a boil water order in September 1989.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 14, 1989 | Hawaii | Boil water order | 1 violation |
What the violations mean
Revised Total Coliform Rule
1 incidentThe system did not meet a requirement of the Revised Total Coliform Rule
Coliform and E. coli rules protect against bacteria in the distribution system
Where the water comes from
Waiahole draws water from 2 wells.
Annual water quality report
Waiahole 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 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Waiahole for a copy.
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