Air Quality
Good
Water Violations
2
Air quality in Box Elder County is rated good with a median AQI of 48 (305 days measured in 2025). 2 community water systems serve the area, with 2 recent violations in the last 5 years.
Air Quality — Box Elder 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
29Ozone Daysi
271Drinking 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
2Active Systemsi
5Recent Violationsi
2Recent Violations (Last 5 Years)
ELWOOD TOWN
Historical Violations (Over 5 Years Ago)
HILL AIR FORCE BASE