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Municipal Water District of Orange County
The Municipal Water District of Orange County, commonly known by the acronym MWDOC, is a wholesale water provider, water resource development and planning agency, water-centric information, education, emergency planning, and conservation resource hub for Orange County. Local water supply sources meet only about half of the region's total water needs. To fulfill the remaining demand, MWDOC buys imported water from the California State Water Project in northern California and the Colorado River through The Metropolitan Water District of Southern California (Metropolitan). MWDOC delivers water to its 27 member agencies - made up of both water districts and city water departments - who then, in turn, provide retail water service to the public.
Metropolitan is the largest municipal water supplier in the United States and MWDOC is the third largest Metropolitan member agency.
Metropolitan is the largest municipal water supplier in the United States and MWDOC is the third largest Metropolitan member agency.
Purpose
MWDOC is dedicated to ensuring a reliable, efficient, and sustainable water supply through forward-thinking planning, strategic advocacy, and community engagement. Our comprehensive programs empower local water agencies, businesses, and residents to navigate the complexities of water management with innovative solutions.
From infrastructure development and emergency preparedness to education, conservation, and policy leadership, MWDOC plays a pivotal role in safeguarding Orange County’s water resources. Explore our key initiatives and discover how we are working to protect and sustain this essential resource for generations to come.
From infrastructure development and emergency preparedness to education, conservation, and policy leadership, MWDOC plays a pivotal role in safeguarding Orange County’s water resources. Explore our key initiatives and discover how we are working to protect and sustain this essential resource for generations to come.
Vision
Through strategic planning and partnerships, innovative solutions, and strong advocacy, we are building a sustainable and resilient water future for Orange County.
Mission
To provide reliable, high-quality supplies from the Metropolitan Water District of Southern California (Metropolitan) and other sources to meet present and future needs, at an equitable and economical cost, and to promote water use efficiency for all of Orange County.




