Is OLOWALU required to publish a Consumer Confidence Report?

Yes. OLOWALU 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 OLOWALU’s next Consumer Confidence Report due?

OLOWALU’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

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.

KAHULUI, HI · Maui County

OLOWALU Water System

Consumer Confidence Report status

OLOWALU 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 OLOWALU.

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): HI0000209
System type: Community Water System
Population served: 100
Service connections: 56
Ownership: privately owned
Water source: groundwater (wells)

OLOWALU is one of 87 community water systems in Hawaii in the 500 or fewer people size category, serving 100 people from groundwater.

As of August 1, 2026, its federal record holds 11 entries between 1980 and 1995, all of which EPA lists as closed. Nothing has been added since 1995.

None of the 11 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, the Surface Water Treatment Rules, and the Miscellaneous Other Rules.

Violation history

Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
November 1, 1995 – November 30, 1995
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
December 1, 1994 – December 31, 1994
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
October 1, 1994 – October 31, 1994
Archived
Notification, Public
—
Coliform (Pre-TCR)
August 1, 1987 – August 31, 1987
Archived
Notification, Public
—
Coliform (Pre-TCR)
October 31, 1985 – January 30, 1986
Archived
Notification, Public
—
Coliform (Pre-TCR)
September 30, 1983 – December 29, 1983
Archived
Notification, Public
—
Coliform (Pre-TCR)
December 31, 1982 – January 30, 1983
Archived
Notification, Public
—
No contaminant on record
March 31, 1982 – June 30, 1982
Archived
Notification, Public
—
Coliform (Pre-TCR)
March 31, 1982 – April 30, 1982
Archived
Notification, Public
—
Coliform (Pre-TCR)
March 31, 1981 – June 30, 1981
Archived
Notification, Public
—
Coliform (Pre-TCR)
December 31, 1980 – March 30, 1981
Archived

Archived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
November 1, 1995 – November 30, 1995	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
December 1, 1994 – December 31, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
October 1, 1994 – October 31, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
August 1, 1987 – August 31, 1987	Notification, Public	Coliform (Pre-TCR)	—	Archived
October 31, 1985 – January 30, 1986	Notification, Public	Coliform (Pre-TCR)	—	Archived
September 30, 1983 – December 29, 1983	Notification, Public	Coliform (Pre-TCR)	—	Archived
December 31, 1982 – January 30, 1983	Notification, Public	Coliform (Pre-TCR)	—	Archived
March 31, 1982 – June 30, 1982	Notification, Public	—	—	Archived
March 31, 1982 – April 30, 1982	Notification, Public	Coliform (Pre-TCR)	—	Archived
March 31, 1981 – June 30, 1981	Notification, Public	Coliform (Pre-TCR)	—	Archived
December 31, 1980 – March 30, 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, 1983State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 30, 1981State Public Notification receivedgeneral compliance action — not tied to a specific violation on record

Common questions

Is OLOWALU required to publish a Consumer Confidence Report?: Yes. OLOWALU 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 OLOWALU’s next Consumer Confidence Report due?: OLOWALU’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does OLOWALU have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for OLOWALU.
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

TAMAYOSE, LEA

808-877-4202

KAHULUI, HI 96732