Kauaʻi Department of Water Home Page
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.
Learn More About Us DOW Public MeetingsPublic Hearings
September 1, 2026
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 ServiceDo 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 BillNews
8:55 p.m. 09-09-2026 (UPDATE) HAENA-WAINIHA - BOIL WATER NOTICE: Effective immediately
8:55 p.m. 09-09-2026 (UPDATE) HAENA-WAINIHA - BOIL WATER NOTICE: Effective immediately, DOW has issued a BOIL WATER NOTICE until further...
9:45 p.m. UPDATE: DOW water service update (for Kauai)
9:45 p.m. (UPDATE) HANAMAULU – Water continues to regenerate the system, and dependent on demand, water regeneration can take between...
9 a.m. 09-09-2026 – DOW is aware of the following water service outages
• Haena-Wainiha - Water buffalo providing potable (drinking) water is dispatched to Hanalei Colony Resort, located at 5-7130 Kuhio HighwayHā‘ena...
Providing Water for Kauaʻi Residents
Explore some key statistics that reflect the services we provide across the island of Kauaʻi.