D.C. Water and Sewer Authority

D.C. Water and Sewer Authority has reported 2 contaminants above EPA health-based guidelines (MCLGs) in at least one city served. We recommend reviewing individual city reports for specific water quality details.

D.C. Water and Sewer Authority has PFAS monitoring data on record and no PFAS compounds are currently above EPA health-based guidelines. EPA finalized new PFAS drinking-water rules in 2024 requiring ongoing monitoring through 2029.

D.C. Water and Sewer Authority bills can be paid at the utility's official payment portal: https://www.dcwater.com/customer-center/billing-and-payments. For questions about your bill, call 202-364-3148.

D.C. Water and Sewer Authority serves 632,323 people across 143 cities in DC, MD, VA.

D.C. Water and Sewer Authority provides water service to: Washington, DC; Adelphi, MD; Ashton-Sandy Spring, MD; Aspen Hill, MD; Beltsville, MD; Berwyn Heights, MD; Bethesda, MD; Bladensburg, MD; Brentwood, MD; Brookeville, MD; Brookmont, MD; Burnt Mills, MD; Burtonsville, MD; Cabin John, MD; Calverton, MD; Capitol Heights, MD; Cedar Heights, MD; Cheverly, MD; Chevy Chase, MD; Chevy Chase Section Five, MD; Chevy Chase Section Three, MD; Chevy Chase View, MD; Chevy Chase Village, MD; Chillum, MD; Cloverly, MD; Colesville, MD; College Park, MD; Colmar Manor, MD; Coral Hills, MD; Cottage City, MD; Darnestown, MD; Derwood, MD; District Heights, MD; East Riverdale, MD; Edmonston, MD; Fairland, MD; Fairmount Heights, MD; Forest Glen, MD; Forest Heights, MD; Four Corners, MD; Friendship Heights Village, MD; Gaithersburg, MD; Garrett Park, MD; Glassmanor, MD; Glen Echo, MD; Glenarden, MD; Glenmont, MD; Greenbelt, MD; Hillandale, MD; Hillcrest Heights, MD; Hyattsville, MD; Kemp Mill, MD; Kensington, MD; Konterra, MD; Landover, MD; Landover Hills, MD; Langley Park, MD; Lanham, MD; Laurel, MD; Layhill, MD; Leisure World, MD; Marlow Heights, MD; Martin's Additions, MD; Maryland Park, MD; Mount Rainier, MD; National Harbor, MD; New Carrollton, MD; North Bethesda, MD; North Brentwood, MD; North Chevy Chase, MD; North Kensington, MD; North Potomac, MD; Olney, MD; Oxon Hill, MD; Peppermill Village, MD; Potomac, MD; Redland, MD; Riverdale Park, MD; Rockville, MD; Seabrook, MD; Seat Pleasant, MD; Silver Hill, MD; Silver Spring, MD; Somerset, MD; South Kensington, MD; South Laurel, MD; Spencerville, MD; Springdale, MD; Suitland, MD; Summerfield, MD; Takoma Park, MD; Temple Hills, MD; Travilah, MD; University Park, MD; Walker Mill, MD; Washington Grove, MD; Wheaton, MD; White Oak, MD; Woodlawn, MD; Alexandria, VA; Arcola, VA; Arlington, VA; Ashburn, VA; Belle Haven, VA; Belmont, VA; Brambleton, VA; Broadlands, VA; Bull Run, VA; Cascades, VA; Chantilly, VA; Countryside, VA; Difficult Run, VA; Dranesville, VA; Dulles Town Center, VA; Dunn Loring, VA; Fair Oaks, VA; Falls Church, VA; Floris, VA; Franklin Farm, VA; Great Falls, VA; Great Falls Crossing, VA; Herndon, VA; Hutchison, VA; Idylwood, VA; Lansdowne, VA; Loudoun Valley Estates, VA; Lowes Island, VA; McLean, VA; McNair, VA; Moorefield, VA; Oak Grove, VA; Oakton, VA; One Loudoun, VA; Pimmit Hills, VA; Reston, VA; South Riding, VA; Sterling, VA; Stone Ridge, VA; Sugarland Run, VA; Tysons, VA; University Center, VA; Vienna, VA; Wolf Trap, VA.

No. D.C. Water and Sewer Authority has no health-based EPA violation since 2020 (EPA data as of Q2 2026).

You can contact D.C. Water and Sewer Authority at 202-364-3148. Their mailing address is: 1385 Canal St SE Washington, DC 20032.

Community water systems must publish an annual CCR. If you're looking for D.C. Water and Sewer Authority's CCR, contact them at 202-364-3148 or check back here — we update monthly. The 2027 revised CCR Rule introduces new direct-URL distribution requirements.