Air Quality
Good
Water Violations
18
Active Contamination
3
Active Permits
14
Air quality in Sullivan County is rated good with a median AQI of 42 (181 days measured in 2025). 10 community water systems serve the area, with 18 recent violations in the last 5 years. 12 industrial facilities report toxic chemical releases totaling 34.3K lbs. 5 contamination sites are tracked, all with completed or ongoing remediation. 11 EV charging stations are available in the area.
Air Quality — Sullivan 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
90Ozone Daysi
91Drinking 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
9Recent Violationsi
18Recent Violations (Last 5 Years)
Historical Violations (Over 5 Years Ago)
Industrial Monitoringi
Toxic Release Inventory (TRI)i
TRIContamination Sitesi
Contaminated sites tracked by the EPA and state agencies. Superfund sites are the most seriously contaminated locations. Brownfields are former industrial properties being cleaned up for reuse. LUST sites have confirmed leaks from underground storage tanks.
EV Charging & Alternative Fuel Stationsi
AFDC