Air Quality
Moderate
Water Violations
66
Air quality in Pinal County is rated moderate with a median AQI of 66 (268 days measured in 2025). 10 community water systems serve the area, with 66 recent violations in the last 5 years.
Air Quality — Pinal County (2025)i
AQSThe Air Quality Index measures how clean or polluted the air is on a given day. AQI is reported at the county level. A score of 0-50 is considered good; 51-100 is moderate; above 100 may be unhealthy for sensitive groups.
Median AQI
PM2.5 Daysi
14Ozone Daysi
161Drinking Wateri
SDWISPublic water systems registered to serve this area. Community systems (CWS) provide water to residents year-round. Violations indicate a system failed to meet federal drinking water standards.
Community Systemsi
10Active Systemsi
4Recent Violationsi
66Recent Violations (Last 5 Years)