Bayshore District
San Carlos, San Mateo, and South San Francisco

Customer Center
341 North Delaware St.
San Mateo, CA 94401-1727
8 a.m. to 4:30 p.m.
(650) 558-7800
infoBAY@calwater.com

  

Acting District Manager
Tony Carrasco

After Hours Phone Number
(650) 558-7800

Pay Stations

You can pay Cal Water bills at any of the pay stations listed below. Note that there is a $1 Western Union service charge to pay your bill at a pay station. Please notify your local Customer Center if you are paying an overdue bill at a pay station.

Fast Money
947 El Camino Real
South San Francisco, CA 94080

SSF Check Cashing
309 Linden Avenue
South San Francisco, CA 94080

J & J Check Cashing
220 Cypress
South San Francisco, CA 94080

Sunshine Center Pharmacy
1166 Mission Road (Mission Road & Holly Ave.)
South San Francisco, CA 94080

Anchor Drugs
481 Grand Avenue (Grand Ave. & S. Spruce Ave.)
South San Francisco, CA 94080

Drop Boxes (checks only)
341 North Delaware Street (along fence outside of Customer Service Center)
San Mateo, CA 94401

E Street & Clark Avenue (near Community Bulletin Board)
Colma, CA 94014

General Information

Cal Water's Bayshore District was formed in 1931 with the purchase of the South San Francisco Water Company, the San Carlos Water Company, and the San Mateo water system from Pacific Water Company. Cal Water proactively maintains and upgrades its facilities to ensure a reliable, high-quality supply.

San Carlos

Water for our customers is purchased from the City and County of San Francisco (SFPUC). The San Carlos system has 21 storage tanks and 29 booster pumps. Cal Water proactively maintains and upgrades its facilities to ensure a reliable, high-quality supply.

San Mateo

Water for our customers is purchased from the City and County of San Francisco (SFPUC). The San Mateo system has 19 storage tanks and 30 booster pumps. Cal Water proactively maintains and upgrades its facilities to ensure a reliable, high-quality supply.

South San Francisco

In 2008, water for our customers was purchased from the City and County of San Francisco (SFPUC), and additional water was provided by five groundwater sources. Our South San Francisco system includes 144 miles of pipeline, 12 storage tanks, one collecting tank, and 20 booster pumps. Cal Water proactively maintains and upgrades its facilities to ensure a reliable, high-quality supply.

Bill Inserts

If you are eligible for Cal Water eBilling, you can select your city, community, or water system to see a list of current bill inserts