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Moulton Niguel Water District is dedicated to providing excellent customer service. Review the resources below, and as always, feel free to get in touch with us if you have any questions! Our customer service department can be reached by phone at (949) 831-2500, by email at customerservice@mnwd.com, or by visiting our office located at 26880 Aliso Viejo Parkway in Aliso Viejo. Our office hours are Monday – Friday from 8am – 5pm.

Customer Services Resources

Use our bill calculator and learn how Moulton Niguel maintains the lowest average bill in South Orange County.

Manage your water usage by viewing your consumption and bill history, view past bills, learn about our water conservation programs and rebates, enroll in paperless billing, and pay bills online at your convenience.

Contact our team if you need to make any changes to your account information.

Moulton Niguel customers can pay bills online, over the phone, in person, or by mail.

A request for a one-time adjustment of charges for a bill over allocation due to unintentional water use.

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A water budget modification is a change to the billing factors used to calculate your water budget.

Visit our customer portal to stop or start water service with Moulton Niguel.

Learn how Moulton Niguel’s water budget based rates are designed to allow for efficient water use based on your personalized needs.

The rate structure for water service fees has five customer classes: residential, multi-family, commercial, irrigation, and recycled.