We’re committed to providing residents with a safe and reliable supply of high-quality drinking water. We test water using sophisticated equipment and advanced procedures. The Water, Sewer, Streets Bureau meets state and federal standards for water quality. This annual “Consumer Confidence Report,” required by the Safe Drinking Water Act from the Environmental Protection Agency, tells you where your water comes from, what our tests show about it and other things you should know about drinking water.
Arlington’s water meets all state and federal drinking water standards — including lead and copper, which have consistently tested below the Action Level. Our water has met safe standards ever since the 1991 inception of EPA’s Lead and Copper Rule.
Willston Pressure Zone
Arlington County purchases water for the Willston Pressure Zone from Fairfax Water which gets its water from the Washington Aqueduct Division of the Army Corps of Engineers. This zone is considered a consecutive water system that requires its own sampling and monitoring. If you live within the Willston Pressure Zone, please reference the Willston Water Quality Reports below.