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The Municipal Water District of Orange County is a wholesale water supplier and resource planning agency that serves all of Orange County (except Anaheim, Fullerton, and Santa Ana) through 28 retail water agencies. We purchase imported water from the Metropolitan Water District of Southern California and distribute it to our client agencies, which provide retail water services to the public.






The Independent Special Districts of Orange County (ISDOC) is a membership association that represents the interests and provides advocacy on behalf of Orange County’s 25 independent special districts.  ISDOC was formed more than 30 years ago to serve the needs of Orange County’s water, wastewater, sanitary, cemetery, vector control, library, recreation and parks, and other districts that provide specialized services within their communities.  A seven-member executive committee guides the association and membership meetings are held on a quarterly basis to provide a forum for its special  district members to meet and discuss issues and share information of mutual interest.

Independent special districts are sanctioned under California Law for the performance of local governmental functions within specified boundaries. Agencies range in size from small to very large and often cross political boundary lines, such as city and county borders, to serve a common community of interest. There is a clear identification between agency name and services provided, which has resulted in a high level of accountability and responsibility to the public, and a high degree of customer satisfaction. As such, they are an integral part of local government and contribute significantly to the quality of life in the communities they serve.

ISDOC is the affiliated Orange County chapter of the California Special District Association (CSDA), a not-for-profit statewide association that provides representation at the State Capitol, as well as cost-efficient programs that include education and training, insurance programs, legal guidance, industry-wide litigation and public relations support, legislative advocacy, capital improvement and equipment funding, collateral design services, and current information that is crucial to a special districts management and operational effectiveness.

For more information, please email Heather Baez or call (714) 593-5012/

ISDOC Quarterly Meetings Schedule - 2017

Thursday, October 26, 2017 - Register Here

Thursday, January 26, 2017 - Register Here

Quarterly Luncheon Agenda

Thursday, March 30, 2017 - Register Here

Thursday, June 29, 2017 - Register Here

Thursday, October 26, 2017

All meetings are from 11:30am – 1:00pm at the MWDOC/OCWD Board Room (18700 Ward Street, Fountain Valley, CA 92708)


ISDOC Bylaws Amendments

Amended ISDOC Bylaws - updated June 29, 2017

ISDOC Quarterly E-News

April 2017 Issue

January 2017 Issue

October 2016 Issue

July 2016 Issue
April 2016 Issue
January 2016 Issue
October 2015 Issue
July 2015 Issue
April 2015 Issue
January 2015 Issue
July 2014 Issue
October 2014 Issue


ISDOC Members Districts

Buena Park Library District
Capistrano Bay Community Services District
Costa Mesa Sanitary District
East Orange County Water District
El Toro Water District
Emerald Bay Community Services District
Irvine Ranch Water District
Mesa Water District
Midway City Sanitary District
Moulton Niguel Water District
Municipal Water District of Orange County
Orange County Cemetery District
Orange County Vector Control District
Orange County Water District
Placentia Library District​
Rossmoor Community Services District
Rossmoor-Los Alamitos Area Sewer District
Santa Margarita Water District
Serrano Water District
Silverado-Modjeska Parks and Recreation District
South Coast Water District
Sunset Beach Sanitary District
Surfside Colony Community Services Tax District
Surfside Colony Storm Water Protection Tax District
Trabuco Canyon Water District
Yorba Linda Water District

Associate Members

Atkinson, Andelson, Loya, Ruud & Romo
Best Best & Krieger
Bowie, Arneson, Wiles & Giannone
Constructive Community Relations, LLC

Laer Pearce and Associates
Lewis Consulting Group
Orange County Sanitation District
Orange County Transportation Authority
Probolsky Research
Rutan & Tucker

Additional information about special districts:

CSDA Special District Reference Guide

What’s So Special About Special Districts