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Safe and Affordable Water Services for Kauaʻi

The Kauaʻi County Department of Water is dedicated to managing our water resources and providing excellent customer service to the people of Kauaʻi.

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To our valued DOW customers,

The impact of Hurricane Lowell has been significant, and we hope you and your loved ones are safe.  During this large-scale recovery, our focus is to ensure we provide our communities with safe drinking water and get our systems operational as quickly and as safely as we can.

Our crews continue to address the various emergency water infrastructure needs that are still ongoing across the island.  Our office is open for in-person services as of Monday, September 14, 2026 though staffing may be limited as many of our team members continue to actively support hurricane recovery efforts. Should you need to contact us to report any outages, breaks, or other DOW service emergencies, please contact our dispatch line at (808) 245-5400 Option 1, Monday-Friday (excluding holidays) between the hours of 7:45 a.m. and 4:30 p.m. For after-hours reporting, please contact KPD non-emergency dispatch at (808) 755-8516 or (808) 652-7837.  For updates and notices, please continue to visit our webpage.

We appreciate your continued patience and understanding through this recovery process.

Mahalo!

Setting Up and Understanding Your Residential or Commercial Water Services

Do You Want to Set up or Transfer New Water Service for Your Home or Office?

Understand the process required, service rates and charges, and learn how to sign up for a new water service with ease.

Set Up a New Water Service

Do You Have Questions About Your Water Bill?

Learn how to read your water bill and understand how your service is being charged.

How to Read Your Bill

What Are My Payment Options?

Learn about all the ways you can pay for your bill.

Payment Options

News

Water Conservation Notice lifted for Hanalei service area on Sept. 16

September 16, 2026

KAUA’I - The Department of Water (DOW) has lifted the water conservation notice for the Hanalei Water System service area,...

Water Conservation Notice lifted for Kalāheo-Kōloa and Līhuʻe-Kapaʻa service areas

September 16, 2026

KAUA’I - The Department of Water (DOW) has lifted the water conservation notice for the Kalāheo-Kōloa (inclucing Poʻipū) and Līhuʻe-Kapaʻa...

Water Conservation Notice lifted for Hanapēpē-Ele’ele and Kekaha-Waimea service areas

September 15, 2026

KAUA’I - The Department of Water (DOW) has lifted the water conservation notice for the Hanapēpē-Ele’ele and Kekaha-Waimea Water Systems...

Providing Water for Kauaʻi Residents

Explore some key statistics that reflect the services we provide across the island of Kauaʻi.

24,468
Water service connections
419.9 miles
Length of mainline pipes
13.69 mgd
Average daily water demand (in millions of gallons)
2.2
Average number of hydrants hit by cars per month