Beyond Hetch Hetchy – Understanding San Francisco’s Water System

Many people may be familiar with Hetch Hetchy, San Francisco’s major water source that lies within Yosemite National Park. The water at Hetch Hetchy contains spring snowmelt flowing down the Tuolumne River. What many people may not know is that this same water is a protected primary source exempt from filtration requirements by the U.S….

Earthquake-Resistant Ductile Iron Pipe Installed in San Francisco

Earthquakes can cause significant damage to San Francisco’s aging water main pipes and potable water distribution systems, which could lead to severe loss of water supplies. To prevent this, the SFPUC is installing high-tech earthquake-resistant ductile iron pipes in key parts of the city to safeguard critical water distribution pipes against the potential destructive impacts…

A Look Back in History: Gate, Interrupted

1910 was the year that the Water Temple was brought online in Sunol. The Sunol Water Temple was built between 1906 and 1910. But the gate to the property wasn’t built until 1910. In the letter written at mid-year (see proceeding page), S.P. Eastman, Second Vice President and Manager of Spring Valley Water Company, invokes…

How to Safely Clean a Storm Drain

With over 25,000 storm drains and catch basins throughout San Francisco, the SFPUC offers a unique program that allows residents to take an active role in caring for and improving the neighborhood where they live and work. Launched in 2016, the Adopt a Drain Program lets San Francisco residents “adopt” one of the City’s storm…

Crews Work Quickly to Fix Sewer Main Blockage at George Sterling Park

On December 17, the City’s 3-1-1 Customer Service Center received a call reporting “water leaking down some steps onto the street from an unknown source” at George Sterling Park. The park sits on a landscaped hilltop with paths, benches with views of the Golden Gate Bridge. “I dispatched crews out there asap to get eyes…