Lead Pipe Map

Washington · population 9,823

Lead pipes in DuPont, WA

No lead lines reported

Most of DuPont (population 9,823) gets its water from City of Dupont Water System, which reported 3,806 service lines and no lead, galvanized or unknown lines.

0% of City of Dupont Water System's service lines are lead or galvanized requiring replacement, lower than the Washington average (0.3%) and lower than the national average (3.1%).

0Lead
0Galvanized, replace
0Unknown material
3,806Non-lead

Latest lead test for City of Dupont Water System (Jan 2023–Dec 2025): 1.4 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 City of Dupont Water System.

Water systems serving DuPont

Water systemLeadGalv.Unknown% lead
City of Dupont Water SystemMain system0000%
JBLM LewisServes nearby areas0000%

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 DuPont

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

Find the official inventory mapCity of Dupont Water System 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 DuPont, WA have lead pipes?

City of Dupont Water System, which serves DuPont, reported no lead, galvanized or unknown service lines.

Who supplies water to DuPont?

EPA's service area maps place most of DuPont in City of Dupont Water System's service area (PWSID WA5320500). JBLM Lewis also serves parts of the city or nearby areas.

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

Search your address on City of Dupont Water System'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 DuPont 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 City of Dupont Water System whether your street is scheduled and whether it covers the private side.