Air Quality
Good
Water Violations
45
Air quality in Somerset County is rated good with a median AQI of 37 (243 days measured in 2025). 2 community water systems serve the area, with 45 recent violations in the last 5 years.
Air Quality — Somerset 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
0Ozone Daysi
243Drinking 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
3Recent Violationsi
45Recent Violations (Last 5 Years)
ADDISON AREA WATER AUTH