DC Tap Water: Clean, Safe, and Affordable

DC Water provides over 100 million gallons of clean, high quality drinking water to our customers in Washington, DC every day. This water comes from the Potomac River and is treated at the Washington Aqueduct, a federally owned drinking water treatment plant. To ensure that our water meets or exceeds federal Safe Drinking Water Act standards as it flows through our pipes, we conduct thousands of water quality tests each year. At DC Water, we are committed to providing drinking water at the lowest possible price while protecting the health of our community.

If you have any questions about the quality of your drinking water, please call our Drinking Water Division at 202-612-3440.

Upcoming Meeting

Board of Directors Meeting

April 24, 2023

Monday 9:00 AM

Announcement

DC Water Officials with NPS and ANC commissioners doing ceremonial groundbreaking
DC Water Breaks Ground on Piney Branch Tunnel, Final Phase of DC Clean Rivers Project

Today, DC Water broke ground on the Piney Branch Tunnel, the final major tunnel in our Clean Rivers Project. This work will help keep sewage and trash out of local waterways and make Rock Creek, the Potomac River, and the Chesapeake Bay cleaner for our community.

When we finish the Piney Branch Tunnel, it will hold at least 4.2 million gallons of rainwater and wastewater during heavy storms. Instead of overflowing into Piney Branch, that water will go to the Blue Plains Water Resource Recovery Facility, where it will be treated.

Latest Blog Post
Plastic bottles, cups and other floating debris on the surface of the Anacostia River before the Anacostia River Tunnel began operating.
Cleaner Waterways Start With Everyday Choices
Protecting our waterways starts with everyday actions and continues through critical infrastructure designed to keep pollution out of our rivers.
Upcoming Meeting
Date
July 28, 2026
Tuesday, 9:30 AM

Upcoming Events

Customer Service Center Announcement

Payment Plan Incentive: provides a credit back of 50% of the last 3 payments made. Eligible participants are residential customers who have had an outstanding balance for 60 days or greater and with an outstanding balance of $500 or more.