Air Quality
Good
Water Violations
28
Air quality in Orange County is rated good with a median AQI of 28 (267 days measured in 2025). 13 community water systems serve the area, with 28 recent violations in the last 5 years.
Air Quality — Orange 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
267Ozone Daysi
0Drinking 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
13Active Systemsi
13Recent Violationsi
28Recent Violations (Last 5 Years)
Historical Violations (Over 5 Years Ago)
