Is Rosslyn Tap Water Safe To Drink?

Yes! The tap water is safe to drink.

Yes. Tap water in Rosslyn, Virginia, is treated by Arlington County and is safe to drink under U.S. Environmental Protection Agency and Virginia Department of Health standards.

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Water Sources
Drinking Fountains

The water comes primarily from the Potomac River and undergoes treatment and testing before distribution. Older buildings may have lead plumbing, so use cold water for drinking and cooking and flush the tap briefly after water has been sitting.

Last checked: 2026-08-31

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 Rosslyn, United States

Tap water in Rosslyn comes from the Potomac River. The Washington Aqueduct, operated by the U.S. Army Corps of Engineers, treats the water at its Dalecarlia and McMillan facilities.

Arlington County purchases this treated water and distributes it through the local water system to Rosslyn homes and businesses. The county maintains the pipes and manages delivery to customers.

Rosslyn Drinking Fountains

Public drinking fountains in Rosslyn are generally safe to use because they receive treated tap water from a regulated public water system that must meet federal and Virginia drinking water standards. Water quality is routinely monitored for bacteria, chemicals, and other contaminants.

Avoid a fountain that is visibly dirty, damaged, leaking, or marked out of service. Let the water run briefly before drinking, especially if the fountain has not been used recently.

Drinking Water Map

Here is a map showing all the locations of drinking water spots in Rosslyn. You can click on each water drop to open the spot directly in Google Maps for directions. For easy access on the go, download our iOS app to find water fountains nearby.

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 Rosslyn 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.