Air Quality
Good
Water Violations
2
Active Contamination
16
Active Permits
6
Air quality in Knox County is rated good with a median AQI of 38 (231 days measured in 2025). 9 community water systems serve the area, with 2 recent violations in the last 5 years. 16 contamination sites are tracked, all with completed or ongoing remediation. 5 EV charging stations are available in the area.
Air Quality — Knox 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
231Drinking 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
9Active Systemsi
8Recent Violationsi
2Recent Violations (Last 5 Years)
VINCENNES WATER DEPARTMENT
Historical Violations (Over 5 Years Ago)
BREEZY HEIGHTS MOBILE HOME PARK
WOODLAND ESTATES MOBILE HOME PARK
ROBINSONS MOBILE HOME PARK
THUNDER HILL MOBILE HOME PARK
KNOX COUNTY WATER, INC.
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