Welcome to Moulton Niguel Water District!
Moulton Niguel Water District delivers high-quality drinking water, recycled water and wastewater services to more than 170,000 customers in Laguna Niguel, Aliso Viejo, Mission Viejo, Laguna Hills, Dana Point, and San Juan Capistrano. A leader in conservation and environmental protection, Moulton Niguel maintains the lowest combined average water and sewer bill in South Orange County.
This March, Moulton Niguel is helping you find and fix hidden leaks in your home!
To support Fix-a-Leak Week, we’re making it easier than ever to check for toilet leaks by sending you a FREE Leaky Toilet Test by mail. Keep an eye on your mailbox and join us in saving water by stopping leaks.
Register Now for The 2026
NatureScape Garden Tour!
This year, we are excited to welcome guests to our beautiful headquarters’ NatureScape Garden for a guided tour! During their visit, attendees will explore our watershed-friendly native garden and visit educational stations to learn about rebates, climate-friendly plants, and expert gardening tips!
Resilient Together
Moulton Niguel Water District has partnered with customers over the years to implement water efficiencies that have made us resilient. Because of the District’s innovative programs and investment in those programs, it is well-positioned to provide safe, reliable water to its customers even in challenging times. But, we can do more. From water-efficient tips to rebates and workshops, find information on how to make every drop count.
Work on Crown Valley Parkway Has Been Completed
Thank you for your patience throughout this important project. Please note that work by other agencies may still be taking place on Crown Valley Parkway. For questions regarding these other projects, please contact the City of Laguna Niguel Public Works Department by calling (949) 362-4337 or emailing Works@cityoflagunaniguel.org.
Learn about where our water comes from!
Are you interested in learning about where our water comes from? Take a “Deep Dive” with us as we cover the following topics!
- A tour of our water’s journey from the mountains in Colorado and the High Sierras to customers’ taps
- How our water is treated regionally and locally so it is safe to drink
- How we plan for the future to ensure water reliability and sustainability
Earn Rebates
Learn how you can qualify for water efficiency rebates.
Understanding Your Water Budget
Your monthly statement contains information to help you understand your water use.
High-Quality Water
Lowest Average Bill in
South Orange County
Board Meetings and Agendas
Browse agendas, minutes, and handouts from all our Board Meetings.
Events
Visit our calendar for a full list of Moulton Niguel workshops, events and more.