Arizona · population 3,317
Lead pipes in Colorado, AZ
30 lines still unidentified
Most of Colorado (population 3,317) gets its water from Centennial Park Dwid. It reported no confirmed lead service lines, but 30 of 315 lines are still listed as unknown material, so lead hasn't been ruled out.
0% of Centennial Park Dwid's service lines are lead or galvanized requiring replacement, lower than the Arizona average (0.1%) and lower than the national average (3.1%).
- Lead 0%
- Galvanized (replace) 0%
- Unknown 9.5%
- Non-lead 90%
Latest lead test for Centennial Park Dwid (Jan 2023–Dec 2025): not detected at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists 1 Lead and Copper Rule violation since 2015 for Centennial Park Dwid.
Water systems serving Colorado
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Centennial Park DwidMain system | 0 | 0 | 30 | 0% |
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 Colorado
The counts above cover the whole water system. To see whether your line is lead, look up your address on Centennial Park Dwid's official inventory. Utilities had to make these public by October 16, 2024.
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.
Choosing a lead-certified filter · Testing your water · Replacement cost
Nearby cities
Check another water system
Questions
Does Colorado, AZ have lead pipes?
None are confirmed, but Centennial Park Dwid still lists 30 service lines as unknown material.
Who supplies water to Colorado?
EPA's service area maps place most of Colorado in Centennial Park Dwid's service area (PWSID AZ0408090).
How do I check whether my Colorado home has a lead service line?
Search your address on Centennial Park Dwid'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 Colorado 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 Centennial Park Dwid whether your street is scheduled and whether it covers the private side.