Cal Water Alerts

Waikoloa: Mandatory water conservation advisory

Posted: November 6, 2026, 10:59AM

Please review the latest update for the most current information.

Thank you for the efforts you have already made to conserve water during our ongoing well repairs. Since implementation of the mandatory 25% conservation advisory, overall water use has decreased by approximately 6%. While we appreciate this progress, additional conservation is needed to help achieve the community-wide goal of a 25% reduction while repairs continue.

With rain expected this weekend, we ask all customers to take advantage of the natural watering by:

  • Turning off irrigation systems during rainfall.
  • Keeping sprinklers off for at least 48 hours after the rain ends.
  • Postponing non-essential outdoor water use.
  • Checking irrigation systems for leaks or unnecessary watering.

The greatest opportunity for additional conservation is reducing outdoor irrigation. Even small changes made by many customers can have a significant impact on preserving available water supplies and maintaining reliable service for homes, businesses, and firefighters.

Replacement well pumps are currently being air freighted from mainland manufacturers, and our operations team is working diligently to return affected wells to service as quickly as possible. Conservation measures will remain necessary until sufficient production capacity is restored.

We recognize that conservation efforts may be inconvenient, and we sincerely appreciate the community’s continued cooperation and support during this period. Together, we can help protect the reliability of Waikoloa’s water supply until repairs are completed.

Original post date:

Important water conservation request for our Waikoloa customers: 

Hawaii Water is implementing a mandatory conservation advisory for all Waikoloa customers to reduce non-essential water use by 25%, as we work through significant repairs to 4 of our 8 groundwater wells. We expect this conservation notice to last about 2-3 months. Please also remember to water only between 5 p.m. and 9 a.m., when there is less evaporation, and turn off irrigation systems entirely when it rains and for 48 hours afterward.

Several of the deep wells that supply water to the Waikoloa community are currently out of service due to equipment malfunctions. These wells are essential components of our water system and operate at depths of approximately 1,300 feet below ground, requiring specialized pumps and equipment to produce water for the community. Repairing and replacing this equipment is a complex process. The specialized components required for these deep well systems currently have extended manufacturing and delivery timelines, due to ongoing supply chain and production constraints.

Our operations and maintenance teams are working diligently with our suppliers and contractors to restore these wells to service as quickly as possible. In the meantime, we must implement conservation measures to help provide continued, reliable water service for all Waikoloa customers and help prevent any water service interruptions.

We ask customers to reduce discretionary water use whenever possible, including:

  • Limiting landscape irrigation.
  • Avoiding washing vehicles except when necessary.
  • Postponing pressure washing and other non-essential outdoor water use.
  • Repairing leaking faucets, irrigation systems, and toilets promptly.
  • Using water efficiently indoors.

While the system continues to meet current customer needs, conservation efforts will help preserve available supplies and maintain reliability as repair work progresses.

We recognize that this may be inconvenient, and we appreciate the community’s cooperation and understanding. Your efforts will help keep service reliable for essential household and business use, and firefighters’ public safety needs. Updates will be provided as repairs progress.

Mahalo,
Hawaii Water

  • Posted: September 28, 2026

  • Updated: November 6, 2026, 10:59AM