Member Purveyors
Calleguas distributes water on a wholesale basis to cities, local water agencies, County waterworks districts, investor-owned utilities, and mutual water companies throughout southeastern Ventura County. These retailers provide direct water service to area residents and businesses.
Berylwood Heights Mutual Water Co.
A mutually owned water company serving agricultural customers northeast of Somis. Water from Calleguas is used rarely and only as a backup to the wells owned and operated by the company.
P.O. Box 48
Somis, CA 93066
Telephone 805.889.6419
Brandeis Mutual Water Company (American Jewish University)
A private domestic system serving the campus of American Jewish University located on the southeast edge of Simi Valley.
1101 Peppertree Lane
Brandeis, CA 93064
Telephone: 805.582.4450
Butler Ranch Mutual Water Company
A private agricultural water supplier located in the Tierra Rejada Valley.
27756 Ave Mentry
Valencia, CA 91355
California-American Water Company
An investor-owned utility serving western Thousand Oaks and Newbury Park, as well as the Las Posas Estates in Camarillo.
California Water Service Company
An investor-owned utility serving the eastern areas of the City of Thousand Oaks.
Camrosa Water District
A public water purveyor serving eastern Camarillo and Santa Rosa Valley.
City of Camarillo
Municipal system serving the central and western areas of the City.
City of Oxnard
Municipal system serving the incorporated area of the City of Oxnard.
Crestview Mutual Water Company
A mutually owned water company serving almost exclusively residential customers with groundwater from its own wells augmented with deliveries from Calleguas.
328 Valley Vista Drive
Camarillo, CA 93010
Telephone 805.482.2001
Fax 805.388.8281
Golden State Water Company
An investor-owned utility serving the east end of the City of Simi Valley.
Pleasant Valley Mutual Water Company
A mutually owned water company serving residential customers in the Camarillo Heights area.
1863 Las Posas Road
Camarillo, CA 93010
Telephone 805.482.5061
Fax 805.482.5771
Solano Verde Mutual Water Company
A private domestic and agricultural water supplier serving the Solano Verde Ranch Homeowners Association in the upper Las Posas Valley.
79 E. Daily Drive, #296
Camarillo, CA 93010-5810
Telephone 805.509.3068
Triunfo Water and Sanitation District (Formerly Oak Park Water Service)
A public water system serving the unincorporated community of Oak Park.
Ventura County Waterworks District No. 1
A public water purveyor serving the City of Moorpark and some surrounding unincorporated areas.
Ventura County Waterworks District No. 8
Municipal water system for the majority of the City of Simi Valley and some nearby unincorporated areas.
Ventura County Waterworks District No. 19
A public water purveyor serving primarily agricultural water users in the Las Posas Valley.
Ventura County Waterworks District No. 38
A public water system serving unincorporated areas surrounding Lake Sherwood.
Zone Mutual Water Company
A private agricultural water supplier serving a portion of the Las Posas Valley.
P.O. Box 239
Somis, CA 93066
Telephone 805.386.4061
Indirectly Served by Calleguas
Port Hueneme Water Agency
The PHWA is a Joint-Powers Agency that provides wholesale water to the City of Port Hueneme, Naval Base Ventura County Port Hueneme and Point Mugu, and the Channel Islands Beach Community Services:
- City of Port Hueneme: The City of Port Hueneme provides drinking water to over 21,000 people.
Visit Website > - Naval Base Ventura County: The Navy operates its own water systems at Point Mugu and Port Hueneme.
Visit Website > - Channel Islands Beach Community Services District: A public system serving the unincorporated communities of Hollywood by the Sea and Silver Strand.
Visit Website >
Ventura County Waterworks District No. 17 (Bell Canyon)
A public water system serving the unincorporated area in Bell Canyon.
