Lead Pipe Map

Colorado · population 108,853

Lead pipes in Centennial, CO

No lead lines reported

Most of Centennial (population 108,853) gets its water from Arapahoe Cnty Wwwa, which reported 5,810 service lines and no lead, galvanized or unknown lines.

0% of Arapahoe Cnty Wwwa's service lines are lead or galvanized requiring replacement, lower than the Colorado average (1.2%) and lower than the national average (3.1%).

0Lead
0Galvanized, replace
0Unknown material
5,810Non-lead

Latest lead test for Arapahoe Cnty Wwwa (Jan 2026–Dec 2028): not detected 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 Arapahoe Cnty Wwwa.

Water systems serving Centennial

Water systemLeadGalv.Unknown% lead
Arapahoe Cnty WwwaMain system0000%

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 Centennial

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

Find the official inventory mapArapahoe Cnty Wwwa 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 Centennial, CO have lead pipes?

Arapahoe Cnty Wwwa, which serves Centennial, reported no lead, galvanized or unknown service lines.

Who supplies water to Centennial?

EPA's service area maps place most of Centennial in Arapahoe Cnty Wwwa's service area (PWSID CO0203002).

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

Search your address on Arapahoe Cnty Wwwa'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 Centennial 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 Arapahoe Cnty Wwwa whether your street is scheduled and whether it covers the private side.