Is Sunnyvale Tap Water Safe To Drink?

Yes! The tap water is safe to drink.

Sunnyvale, California tap water meets all state and federal drinking water standards. It is regularly tested for contaminants by local water authorities.

Water Sources
Drinking Fountains

Water quality reports show low levels of regulated substances, well below EPA limits. Treatment processes ensure safety and compliance.

Residents can safely drink tap water, but may use filters for taste or specific concerns. For latest details, consult Sunnyvale Water Quality Report.

Last checked: 2026-01-14

United States is ranked as number 15 globally with a score of 96.2% in the water quality EPI research conducted by Yale University.

Source of Water in Sunnyvale, United States

Sunnyvale's tap water mainly comes from local groundwater wells within the Santa Clara Valley. These wells access underground aquifers.

Additionally, imported surface water from the Sacramento-San Joaquin Delta supplements local groundwater supplies. This water is treated before distribution.

Water blending from these sources ensures a reliable supply. Seasonal variations may affect the proportion from each source.

Sunnyvale Drinking Fountains

Public drinking fountains in Sunnyvale receive treated municipal water, meeting safety standards for consumption. They are regularly maintained by local authorities.

However, fountain cleanliness and maintenance vary. Users should ensure no visible contamination or damage before use.

For concerns, bottled water or personal water bottles with filters offer alternatives when public fountains seem questionable.

Drinking Water Map

Here is a map showing all the locations of drinking water spots in Sunnyvale. You can click on each water drop to open the spot directly in Google Maps for directions.

Nearby Places

About the Author

Hi, I'm Emily Hartman, a researcher and water quality specialist with a background in public health.

I've spent the last few years studying how everyday water systems impact our health, and I'm passionate about making that information clear and useful for everyone.

Safe, clean tap water isn't just my job, it's something I truly care about.

Disclaimer

* The information provided on this website regarding the safety of tap water in Sunnyvale is sourced from reputable sources such as the World Health Organization (WHO), local water authorities, and the Environmental Performance Index (EPI) from Yale University. While we strive to ensure accuracy and reliability, it's important to note that water quality can vary over time and may be subject to factors beyond our control. Users are encouraged to verify the current water quality status with local authorities or consult additional resources before making decisions regarding water consumption. We disclaim any liability for actions taken based on the information provided on this website.