Air Quality
Good
Water Violations
99
Air quality in Lehigh County is rated good with a median AQI of 42 (208 days measured in 2025). 31 community water systems serve the area, with 99 recent violations in the last 5 years. 53 EV charging stations are available in the area.
Air Quality — Lehigh 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
94Ozone Daysi
114Drinking 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
31Active Systemsi
21Recent Violationsi
99Recent Violations (Last 5 Years)
GILLETT MHC
LCA ALLENTOWN DIVISION
LCA HEIDELBERG HEIGHTS DIV
LCA NORTH WHITEHALL DIVISION
SWT MAIN SYSTEM
LCA WLSA CENTRAL DIVISION
LCA UPPER MILFORD CENTRAL DIV
LCA WASHINGTON TOWNSHIP DIV
LCA MILL CREEK DIVISION
LCA PINE LAKES DIVISION
Historical Violations (Over 5 Years Ago)
EV Charging & Alternative Fuel Stationsi
AFDC