California Water Service Begins San Carlos Water Infrastructure Upgrade to Improve Water Supply Reliability and Fire Protection

California Water Service Begins San Carlos Water Infrastructure Upgrade to Improve Water Supply Reliability and Fire Protection

SAN CARLOS, Calif.-California Water Service (Cal Water) has begun work on a major water infrastructure upgrade to enhance water supply reliability and fire protection in downtown San Carlos.

Last month, Cal Water crews began construction to install the first 750 feet of the more than 7,000 feet of new water main, along with 18 fire hydrants, this spring in the downtown area. These upgrades are designed to strengthen the local water system and provide long-term reliability for the San Carlos community.

"We are excited to break ground on this project because this investment in infrastructure will strengthen our water system in the area," said Ross Moilan, Bayshore District Manager. "These upgrades make it possible for us to deliver safe, clean, reliable drinking water to our customers' homes and businesses, meeting everyday and emergency needs for our community."

In coordination with the City of San Carlos, work on this first phase of the project is taking place on Elm Street between Cherry and Olive streets ahead of the city's planned restoration in the area. Crews are working 9 a.m. to 3 p.m., Monday through Friday, and traffic control is in place. Customers will be notified of any temporary traffic impacts or service interruptions that may occur as a result of this work at least 48 hours in advance. Cal Water is waiting for permits to begin subsequent phases of the project.

Once complete, the new main will improve the distribution grid strength, flow, and reliability. Temporary asphalt will be applied until permanent paving is completed, which can be up to 30 days after project completion.

About California Water Service

California Water Service provides high-quality, reliable water utility services to about 200,800 people through 54,000 service connections in San Carlos, San Mateo, and South San Francisco, and more than 2.1 million people statewide through 499,400 service connections. Cal Water's purpose is to enhance the quality of life for customers and communities. Cal Water's purpose is to enhance the quality of life for customers and communities. To do so, it invests responsibly in water and wastewater infrastructure, sustainability initiatives, and community well-being. The company's 1,200 employees live by a set of strong core values and share a commitment to protecting the planet, caring for people, and operating with the utmost integrity. The utility, commemorating a century of service this year, has been named one of "America's Most Responsible Companies" and one of the "World's Most Trustworthy Companies" by Newsweek, a USA Top Workplace, and a Great Place to Work®. More information is available at www.calwater.com.

Released March 18, 2026