Committed to Providing High-Quality Water Service

Moulton Niguel Water District is dedicated to providing reliable and cost-effective water and recycled water services, and wastewater treatment for our customers. That commitment is exemplified through the high-quality service and exceptional staff who operate 24/7 to protect the infrastructure that delivers and stores our valuable water resources and treats all wastewater in an environmentally responsible manner.

Have you seen us in your community? We may be working on a number of different infrastructure improvement projects. One particular area where there has been increased activity is MNWD’s Valve Replacement Program. Many of our valves are more than 25 years old and require replacement to ensure that they will operate as needed.

What’s a Valve and Why Do They Need to be Replaced?


A valve is a critical piece of equipment that helps support the transportation of water. The District has approximately 21,000 valves throughout our service area that are primarily used to isolate sections of pipe in the event of planned or emergency repairs and connections. In 2015, we began to identify key valves throughout our distribution system

that need to be replaced to improve water reliability and protect the infrastructure that helps deliver water and recycled water service to our customers. We continue to assess key infrastructure and make necessary improvements. Visit to learn more about our water supply and systems.

Proposed Rendering of the Moulton Niguel Water District’s Operations Center: Aerial Viewpoint

Update: Operations Center Consolidation and Improvement Project

Another key infrastructure improvement project is the District’s Operations Center Consolidation and Improvement project. Our existing facilities require significant rehabilitation and upgrades from more than 40 years of use in serving the public. This project focuses on performing critical improvements to our current operations center while also consolidating all operations into a single site in Laguna Hills. The proposed project will better support continued high levels of service to the community.

Proposed Rendering of the Moulton Niguel Water District’s Operations Center
Proposed Rendering of the Moulton Niguel Water District’s Operations Center: Aerial Viewpoint

2016 Water Quality Report Available 

MNWD is committed to providing our customers with high-quality water and excellent customer service, while offering you some of the lowest water rates in South Orange County. We hope you enjoy reading this year’s water quality report and learning about our commitment to deliver high-quality water to our communities. Our 2016 Consumer Confidence Report can be found online at:

Water Awareness Poster Contest: Congratulations to
St. Mary’s Student Winner, Rhett Bourne

The MNWD Board of Directors were pleased to recognize Rhett Bourne, an eighth grader at St. Mary’s School, for being named a winner in the county-wide water awareness poster contest! This year’s theme, “Finding Water,” encouraged students to highlight the significance of water by creating artwork that reflects the importance of our most valuable natural resource.Congratulations, Rhett!

FREE Irrigation Workshops this Summer!

Missed our June workshops? We are offering free classes to help customers learn about monthly water budgets, ways to avoid overwatering in the hot summer months, and how to identify and resolve common irrigation issues.
Upcoming classes include:

•   Wednesday, July 12 at 6pm

•   Saturday, July 22 at 9am

Classes are held for approximately three hours at the MNWD Main Office in Laguna Niguel. Register today at: