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Aloha from the Kaua`i Department of Water.  We are dedicated to providing safe, affordable, sufficient water service through wise management of our resources and with excellent customer services for the people of Kaua`i.


Here are the most recent customer service notices:


Discontinuance of service for non-payment to resume Sept. 1, 2021

The Department of Water will end its suspension of water disconnection for delinquent accounts effective Sept. 1, 2021. Customers with past-due, delinquent accounts are urged to make a payment in full or contact our Billing Services personnel at 245-5442 to set-up a payment plan before Sept. 1st to avoid water service disconnection. For the press release, click here


To apply for the Kauai Coronavirus Rent & Utility Assistance Relief Program, visit or call 808-482-3777.


Main lobby open for Billing & Account Services:

Account services and walk-in bill payments are now accepted at our service windows located in the main lobby. Payments by check will continue to be accepted in the payment drop box. For Online Bill Pay, click here.
Documents Drop off: To drop off service documents, please use the drop box located in the parking lot. Applications and service forms are available on the “
Forms & Applications” tab on our website.


Business Hours (Monday thru Friday, closed on holidays):
 Business by phone or appointment: 7:45 a.m. – 4:30 p.m.
 Main Lobby Hours (Billing Services) 8:00 a.m. – 4:00 p.m.


For additional services: Please call 245-5400 to schedule an appointment. Customers who arrive without an appointment will be kindly asked to make an appointment.


On Appointment Day: Customers with an appointment should remain in their car and call the employee they are meeting with upon arrival. A brief pre-screening questionnaire will be conducted before being escorted to a designated meeting space. Those who are not able to pass the pre-screening questions will be asked to reschedule their appointment.
 For the latest service announcements from the Department of Water and the County of Kauai, 
click here

Customer Account Portal (CAP)

Special Interest

November 2021 Meetings
Regular Board Meeting 
 November 18, 2021 10:00am
Call-In info is available within the Agenda Packet
Click Here for the Agenda


 A New Look

Beginning in March our water bills will have a new look.

Click Here to View a Sample of the New bill

Click Here on How to Read Your New Bill
  DOW Annual Report 2019

Press Releases
Kauai Water Use and Development Plan Update
Click Here for More Information



Water Emergency Preparedness

Click Here to learn more about how to prepare your household water supply for a natural disaster.

2019 CIP Project List

Progress Report on Water Plan 2020

Understanding Your Water Meter
Click Here to Find out How

Introduction / Table of Contents

100 Planning
200 Materials
300 Construction
400 Approved Materials List and Standards Details


2005 Amendments

2008 Amendments


Activities for the kids, including:
puzzles, trivia, coloring book pages, water cycle and more!
Access to Water Service Applications and Engineering Forms.

If you have time, please fill out our Feedback and Survey Pages
Get the latest tips for indoor and outdoor conservation.

Read about Xeriscape and it can save you water.

Look for our new Free Low Flow Fixtures Offer.