Department of Water County of Kauai

Department of Water County of Kauai

Ko'u Wai
Customer Account Portal
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To comply with enhanced payment security requirements, our payment processor, Stripe, will require all customers to re-enter any saved credit card or bank account payment information and re-establish any automatic payment settings associated with credit cards beginning June 1, 2026, after 10:00 a.m. HST.

If these updates are not completed, automatic payments using credit cards and one-time online payments will not be processed successfully after 10:00 a.m. HST on June 1, 2026.

Important: Automatic bill payments established directly with the Department of Water using a bank account will not be affected. Only automatic credit card payment arrangements set up through this online portal require action.

CAP is down at the moment. We apologize for any inconvenience and are working to restore service as soon as possible.

The Customer Account Portal will not be available through the weekend. Please check back on Sunday 4/21. Sorry for the inconvenience.

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