Local Information for San Mateo County, California

The Surfrider San Mateo County Chapter conducts water testing and provides data to improve the public’s knowledge of the safety of our coastal creeks and beach water. BWTF water testing programs measure bacteria levels at both beaches and upstream in their watersheds, then compare them to federal water quality standards established by the EPA to protect public health in recreational waters.

If you are interested in volunteering with the San Mateo County Blue Water Task Force, please send an email to

Learn more about beach monitoring programs and water quality issues in California in the water quality section of Surfrider's State of the Beach, California State Report.  Links to county specific beach websites with water quality data and closures, postings, and advisories can also be accessed in the State of the Beach Report.