Lead Pipe Map

Colorado · population 729,019

Lead pipes in Denver, CO

16,674 lead or galvanized lines to replace

Most of Denver (population 729,019) gets its water from Denver Water Board. That system reported 15,826 lead and 848 galvanized-requiring-replacement service lines out of 311,392, with 34,057 more of unknown material.

5.4% of Denver Water Board's service lines are lead or galvanized requiring replacement, higher than the Colorado average (1.2%) and higher than the national average (3.1%).

15,826Lead
848Galvanized, replace
34,057Unknown material
260,661Non-lead

Latest lead test for Denver Water Board (Jan 2026–Jun 2026): 3.6 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.

Compliance record: EPA lists no Lead and Copper Rule violations since 2015 for Denver Water Board.

Water systems serving Denver

Water systemLeadGalv.Unknown% lead
Denver Water BoardMain system15,82684834,0575.4%
Advenir French QuarterAlso serves parts of the city0000%
City of AuroraServes nearby areas124649,2860.5%

Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.

Check your address in Denver

The counts above cover the whole water system. To see whether your line is lead, look up your address on Denver Water Board's official inventory. Utilities had to make these public by October 16, 2024.

Denver Water Lead Reduction ProgramDenver Water Board details

No map yet? Do the 2-minute scratch and magnet test.

Protect your drinking water

If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.

Pitcher filtersCheapest start. Pick one certified to NSF/ANSI 53 for lead, such as Brita Elite, PUR Plus or ZeroWater.See pitchers Faucet-mount filtersFilters straight from the tap. Look for NSF/ANSI 53 lead reduction on the box.See faucet filters Under-sink systemsBest for families. Carbon block (NSF 53) or reverse osmosis (NSF 58) units rated for lead.See under-sink

Choosing a lead-certified filter · Testing your water · Replacement cost

Nearby cities

Check another water system

Questions

Does Denver, CO have lead pipes?

Yes. Denver Water Board, which serves Denver, reported 15,826 lead and 848 galvanized-requiring-replacement service lines, plus 34,057 of unknown material.

Who supplies water to Denver?

EPA's service area maps place most of Denver in Denver Water Board's service area (PWSID CO0116001). Advenir French Quarter, City of Aurora also serve parts of the city or nearby areas.

How do I check whether my Denver home has a lead service line?

Search your address on Denver Water Board's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.

When will lead pipes in Denver be replaced?

EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask Denver Water Board whether your street is scheduled and whether it covers the private side.