WAILUKU, HI · Maui County
NAHIKU Water System
Consumer Confidence Report status
NAHIKU must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for NAHIKU.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Hawaii’s official records. Always confirm current status with Hawaii before making decisions based on this information.
System facts
- System ID (PWSID)
- HI0000220
- System type
- Community Water System
- Population served
- 107
- Service connections
- 43
- Ownership
- local government
- Water source
- groundwater (wells)
NAHIKU is one of 87 community water systems in Hawaii in the 500 or fewer people size category, serving 107 people from groundwater.
As of August 1, 2026, its federal record holds 3 entries between 1981 and 1984, all of which EPA lists as closed. Nothing has been added since 1984.
None of the 3 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Total Coliform Rules.
Violation history
Notification, Public
—Coliform (Pre-TCR)
October 1, 1984 – December 31, 1984
ArchivedNotification, Public
—Coliform (Pre-TCR)
September 30, 1981 – December 29, 1981
ArchivedNotification, Public
—Coliform (Pre-TCR)
June 30, 1981 – September 29, 1981
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 1984 – December 31, 1984 | Notification, Public | Coliform (Pre-TCR) | — | Archived |
| September 30, 1981 – December 29, 1981 | Notification, Public | Coliform (Pre-TCR) | — | Archived |
| June 30, 1981 – September 29, 1981 | Notification, Public | Coliform (Pre-TCR) | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- September 30, 1982State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
Common questions
Is NAHIKU required to publish a Consumer Confidence Report?
- Yes. NAHIKU is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is NAHIKU’s next Consumer Confidence Report due?
- NAHIKU’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does NAHIKU have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for NAHIKU.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
PEARSON, JEFF
808-270-7834
WAILUKU, HI 96793-2155