Moulton Niguel Publishes Its Annual Water Quality Report



Moulton Niguel Water District is committed to testing, protecting, and delivering high-quality water to our 170,000 customers, and we are pleased to report that the drinking water provided to your homes, schools, and businesses meets or exceeds the standards required by state and federal regulatory agencies.

Our annual water quality and consumer confidence report provides information on the sources of our water supply, information about your drinking water, and water quality results for the calendar year 2018. We are committed to providing our customers with high-quality water and excellent customer service, while offering you the lowest water rates in South Orange County.



The 2018 Water Quality Report is available on our website at To request a paper copy, please feel free to contact us at (949) 831-2500 to arrange for mailed delivery. Copies of the report are available at the District’s office located at 27500 La Paz Rd., Laguna Niguel.



From the Tops of the Mountains to the Taps in Your Homes

Did you know Moulton Niguel customers receive all their drinking water from hundreds of miles away? The two major sources of drinking water for Moulton Niguel customers is imported from the Colorado River, via the Colorado River Aqueduct, and Northern California, via the State Water Project.

This water is imported by the Metropolitan Water District of Southern California, and then treated at one of two treatment plants: the Diemer Filtration Plant in Yorba Linda and the Baker Water Treatment Plant in Lake Forest. From there, the treated water is sent to Moulton Niguel’s distribution system and then to your tap.



Learn more about your water’s journey by visiting!



Let’s Talk Water: Access Our Speakers Bureau Program



Are you interested in having a Moulton Niguel representative speak to your service club, HOA, business, or community group? Our Speakers Bureau Program is a free service for our customers and community members who can request a Moulton Niguel expert to speak on several different topics, including water use efficiency, water budget-based rates, where our water comes from, and much more. The goal of the Speakers Bureau Program is to create a two-way communication between the District and our customers and to provide local organizations with information on current water issues.



iconRequest a Speaker Today!
Visit to fill out a short online form or email us at with your request.



Sign Up for Our Customer Portal, MyWater MNWD

Are you looking to go paperless? Want water use data at your fingertips? Moulton Niguel’s customer portal, MyWater MNWD, provides that and much more! We’ve made it even easier to manage your Moulton Niguel account with our free customer portal and mobile app. Check out some of the many benefits of signing up for MyWater MNWD.

Compare your water usage to previous time periods
Convenient, easy to use, and secure
Pay bills online, 24/7, at your convenience
Receive email notifications as soon as your bill is ready
Start or stop your water service



iconSign up for MyWater MNWD or download the mobile app today! If you have already signed up and are using our customer portal, we encourage you to provide us with feedback. Please email us at



Irrigation Workshop – Wednesday, June 5th from 6pm-9pm

Water & Housing Forum – Friday, June 14th from 11am-1pm
Irrigation Workshop –  Saturday, June 15th from 9am-12pm

Landscape Workshop – Wednesday, June 26th from 6pm-9pm



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Duane D. Cave      Richard Fiore      Donald Froelich      Kelly Jennings
Gary R. Kurtz        Bill Moorhead     Brian S. Probolsky