Air Quality
Good
Water Violations
55
Active Permits
3
Air quality in Hunterdon County is rated good with a median AQI of 41 (178 days measured in 2025). 3 community water systems serve the area, with 55 recent violations in the last 5 years.
Air Quality — Hunterdon 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
73Ozone Daysi
105Drinking 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
3Active Systemsi
15Recent Violationsi
55Recent Violations (Last 5 Years)