Staying Ahead of Pollution

The SFPUC’s Pollution Prevention Program held a workshop last May to discuss Constituents of Emerging Concern (CECs). Simply put, the CECs are the many different kinds of chemicals such as traces of medicines, personal care or household cleaning products, lawn care and agricultural products, among others. These can be detected in water ways, such as…

A Look Back in History: Bedrock Contour Map of Hetch Hetchy Dam Site

The original O’Shaughnessy Dam was 226 feet above riverbed. It was raised from its original height in 1938. Today the O’Shaughnessy Dam is 312 feet above riverbed and 430 feet above bedrock. Below is a bedrock contour map developed for the dam. This illustration is taken from Contract No. 61, “For the Construction of Hetch…

Completion of Baker Beach Green Streets Project Will Help Manage 2.6 Million Gallons of Stormwater Each Year

For the SFPUC, green infrastructure projects like Baker Beach Green Streets represent the future of San Francisco. Green infrastructure projects help manage the City’s stormwater more efficiently and sustainably, while also making communities more connected and livable. Completion of the Baker Beach Green Streets project and a series of green infrastructure improvements will help manage…