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Bayshore
(Bay Area Region)
(Bay Area Region)
341 North Delaware Street
San Mateo, CA 94401
Customer Service
7:00 a.m. to 7:00 p.m.
(650) 558-7800
Contact us via email
District Manager
Ross Moilan
After-Hours Phone Number
(650) 558-7800
Automated Payment Number
(888) 598-9824
Payment Mailing Address
California Water Service
P.O. Box 7229
San Francisco, CA 94120-7229
Bayshore phone service is closed for the weekend.
If you have a water-related emergency, please contact Cal Water using the Bayshore after-hours phone number.
If you have a water-related emergency, please contact Cal Water using the Bayshore after-hours phone number.
- October 02, 2024Office closing early on October 4
- March 12, 2020Lobby closed to walk-in traffic
Infrastructure Improvements
- July 30, 2024 Infrastructure Upgrades Begin in South San Francisco
Serving Bayshore, Broadmoor, Colma, Daly City, Mid-Peninsula, Palomar Park, San Carlos, San Mateo, and South San Francisco
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. We proactively maintain and upgrade our facilities to ensure a reliable, high-quality supply.
San Carlos
Water for our San Carlos customers is purchased from the City and County of San Francisco (SFPUC). The San Carlos system utilizes 17 storage tanks and 24 booster pumps.
San Mateo
Water for our San Mateo customers is also purchased from the City and County of San Francisco (SFPUC). The San Mateo system has 18 storage tanks and 30 booster pumps.
South San Francisco
Water for our customers is purchased from the City and County of San Francisco (SFPUC), and additional water was provided by five groundwater wells. Our South San Francisco system includes 144 miles of pipeline, 12 storage tanks, one collecting tank, and 21 booster pumps.
Closest Western Union Pay Stations
Note: In addition to the locations listed below, you can also make a payment at any Western Union nationwide that offers its Quick Collect service.
| Business | Address | City | ZIP Code |
|---|---|---|---|
| Walgreens #1807 | 22 San Pedro Rd | Daly City | 94014 |
| Walgreens #5365 | 6100 Mission St | Daly City | 94014 |
| Safeway #3031 | 601 Westlake Center | Daily City | 94015 |
| Walgreens #324 | 216 Westlake Ctr | Daly City | 94015 |
| Walgreens #2126 | 1414 El Camino Real | San Carlos | 94070 |
| Friends Market | 200 San Felipe Ave | South San Francisco | 94080 |
| J & J Check Cashing | 220 Cypress Ave | South San Francisco | 94080 |
| Pak-N-Save #3116 | 2255 Gellert Blvd | South San Francisco | 94080 |
| Safeway #0777 | 30 Chestnut Ave | South San Francisco | 94080 |
| Sunshine Center Pharmacy | 1166 Mission Rd | South San Francisco | 94080 |
| Walgreens #15397 | 2238 Westborough Blvd | South San Francisco | 94080 |
| Walgreens #3346 | 399 El Camino Real | South San Francisco | 94080 |
| CA Check Cashing #564 | 610 S Norfolk St | San Mateo | 94401 |
| Chavez Supermarket | 500 S Norfolk St | San Mateo | 94401 |
| Walgreens #3296 | 191 E 3rd Ave | San Mateo | 94401 |
| Rite Aid #5902 | 666 Concar Dr | San Mateo | 94402 |
| Safeway #0639 | 100 De Anza Blvd | San Mateo | 94402 |
| Safeway #0970 | 1655 S El Camino Real | San Mateo | 94402 |
| Rite Aid #5903 | 1320 W Hillsdale Blvd | San Mateo | 94403 |
| Rite Aid #5903 | 1320 W Hillsdale Blvd | San Mateo | 94403 |
| Walgreens #5006 | 4070 S El Camino Real | San Mateo | 94403 |