District of Columbia Lead Service Line Replacement Programs

District of Columbia water systems reported 16,935 lead and 220 galvanized service lines that must be replaced (EPA, Q3 2026). Below: the state rule on who pays, and every District of Columbia utility with at least 1,000 such lines or a confirmed program.

State rule: utility pays

District Lead Pipe Replacement Assistance Program

In the District of Columbia, DC Water and the Department of Energy and Environment cover the private side for enrolled owners through the Lead Pipe Replacement Assistance Program and DC Water's House by House program.

Mandatory? No owner mandate; the District aims to replace all lead lines by 2030.

Funding: DOEE, DC Water capital program and federal infrastructure grants.

Sources: dcwater.com

Utilities listed1

Free programs1

Other programs0

Not yet confirmed0

Utility	Lead	Galv.	Program
Washington, DC D.C. Water and Sewer Authority	16,935	190	Free if eligible

Compare: lead lines in every state · cities with the most lead pipes · free programs in District of Columbia

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Common questions

Who pays to replace lead service lines in District of Columbia?

Is lead service line replacement mandatory in District of Columbia?

No owner mandate; the District aims to replace all lead lines by 2030.

How many lead service lines are in District of Columbia?

Water systems in District of Columbia reported 16,935 lead service lines, 220 galvanized lines that need replacement and 13,427 lines of unknown material to EPA (Q3 2026), across 3 reporting systems.

Where can I get help paying in District of Columbia?

Start with your water utility's program; the table on this page shows what we've confirmed. State money flows through: DOEE, DC Water capital program and federal infrastructure grants. If your utility has no program, see our guide to paying for replacement.