California Water Service Group

12/10/2019 | Press release | Distributed by Public on 12/10/2019 16:20

Cal Water Begins New Water Main Installation in the County Area of Atherton And Menlo Park

MENLO PARK, Calif. - California Water Service (Cal Water) has started a water infrastructure upgrade in portions of Atherton and Menlo Park that will strengthen water system reliability and infrastructure resiliency for customers' everyday needs and firefighters' emergency needs.

The project, which began this week and is expected to take six weeks to complete, includes the installation of 2,063 feet of new 12-inch ductile iron water main. Crews will also install five new fire hydrants and 20 new individual service connections. Installation will take place on Ringwood Avenue, from Middlefield Road to Coleman Avenue.

'This proactive infrastructure upgrade will enable us to continue delivering a reliable supply of safe, high-quality drinking water to area residents, both now and for years to come. Additionally, it will help first responders protect the community in the event of an emergency,' said District Manager Dawn Smithson. 'This project is an important part of our promise to deliver quality, service, and value to our customers.'

Construction will be performed Monday through Friday between 9 a.m. and 3 p.m. Some work in Menlo Park will be done on Saturdays due to the close proximity to Menlo-Atherton High School. Crews will make every effort to minimize traffic delays and ensure residents in the impacted area have access to their homes during construction.

Following installation, crews will conduct water quality testing and connect individual service lines to the new water main. Water service will be temporarily interrupted for one to two hours as crews connect customers' service lines to the main; however, Cal Water will notify residents in advance of any planned shutdowns, which are normally scheduled between 9 a.m. and 3 p.m. Crews will also restore all streets, sod, and landscaping impacted by the construction.

Cal Water serves approximately 60,900 people through 18,900 service connections in Portola Valley, Woodside, Atherton, and portions of Menlo Park, Redwood City, and San Mateo County and about two million people through 486,900 service connections in California. The utility has provided water service in the area since 1936. Additional information may be obtained online at