Lead service lines in Phoenix, AZ
Phoenix's water system serves about 2.3 million people across 136 water providers. The good news: current data shows no confirmed lead service lines have been documented in the city's inventory so far.
That doesn't mean lead pipes don't exist in Phoenix—it means utilities are still in the process of mapping their systems. Lead service lines are the pipes that connect the water main under the street to individual homes. If you have one, the risk of lead in your drinking water increases, especially if your water is slightly acidic or corrosive.
Why the uncertainty?
Federal law requires water utilities to locate and inventory their lead service lines by 2025. Many cities, including Phoenix's larger systems, are still completing these surveys. When a utility's data shows "unknown," it usually means the work is underway.
The City of Phoenix serves about 1.7 million people and has not yet reported confirmed lead service lines. Glendale (235,000 people) and Arizona Water Company's Pinal Valley system (134,000 people) are the next largest providers in the region and are similarly in the mapping phase.
What you can do now
Get your water tested. If your home was built before 1986, the year lead was banned in new plumbing, you're in a higher-risk age group. A simple test costs $20–50 and tells you whether lead is present in your water right now—not just whether you have a lead pipe.
Contact your utility directly. Ask them three things:
- Do you have a lead service line at your address?
- What is your current lead service line inventory status?
- Do you have a program to replace lead pipes?
Your utility's name depends on where you live. The City of Phoenix is the largest provider, but if you're in a suburban area, you might be served by Glendale, Arizona Water Company, or another system.
If you're concerned about your kids' exposure, talk to your pediatrician or check the CDC's guidance on lead and children's health.
Next steps for residents
- Contact your water utility and ask if your address has a lead service line
- Request a free or low-cost water test from your utility or health department
- If lead is detected, use a water filter certified to remove lead (look for NSF 53 or 58 certification) until pipes are replaced
- Check back with your utility on their timeline for lead service line replacement programs