A
100

Excellent Water Quality

Sun City, AZ 85351

Maricopa County · Population served: 38,016 · Data updated March 2026

Water Systems Serving This Area

🌊
EPCOR - SUN CITY
Groundwater · Pop. 38,016
PWSID: AZ0407099

Water Quality Summary

Understanding Your Water in Sun City

Tap water quality in Sun City, Arizona (85351) receives an overall grade of A (Excellent) with a score of 100 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 40 points above the Arizona state average of 60. Compared to the national average (75), this area performs significantly better. The area is served by Epcor - Sun City, a groundwater system providing water to approximately 38,016 people. The area has a clean violation record over the past 5 years — a positive indicator of consistent water quality management.

Your Score 100/100 A
vs State 40 pts above Arizona avg (60)
vs National 25 pts above national avg (75)

What a Grade A Means

A score of 100/100 means the water supply in Sun City, AZ meets or exceeds all EPA standards with minimal issues. Contaminant levels are well within safe limits, and the water system has maintained a strong compliance record. While no water supply is guaranteed perfect at the tap due to household plumbing, this is among the best-scoring areas in the country.

Groundwater: drawn from underground aquifers via wells

Common Questions

Frequently Asked Questions

Based on EPA data, tap water in Sun City, Arizona receives a grade of A (Excellent) with a score of 100/100. This indicates the water meets federal standards and has relatively few concerns. However, individual homes may still have localized issues such as lead from old plumbing.

ZIP code 85351 is served by 1 water system using groundwater sources, providing water to approximately 38,016 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.

No lead data is currently available for ZIP code 85351. This may mean lead testing results haven't been reported recently, or the serving water system uses monitoring waivers. You can request a free lead test kit from most water utilities or purchase a certified home testing kit.

No PFAS ("forever chemicals") were detected in water systems serving Sun City, Arizona during the most recent EPA monitoring period (UCMR5). However, not all water systems have been tested for all PFAS compounds, and new contamination can occur over time.

Water systems serving Sun City, Arizona have zero violations in the last 5 years. This is a positive indicator of consistent regulatory compliance and water quality management.

Water in Sun City, Arizona shows no major contaminant concerns based on available data. A basic carbon filter can improve taste and reduce chlorine. For extra peace of mind, an NSF-certified pitcher filter or faucet-mount filter provides an affordable layer of protection.

Explore Nearby

Water Quality in Nearby ZIP Codes