Air Quality
Good
Water Violations
19
Active Contamination
6
Active Permits
16
Air quality in Passaic County is rated good with a median AQI of 41 (181 days measured in 2025). 5 community water systems serve the area, with 19 recent violations in the last 5 years. 44 industrial facilities report toxic chemical releases totaling 24.2K lbs. 7 contamination sites are tracked, all with completed or ongoing remediation.
Air Quality — Passaic 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
83Ozone Daysi
98Drinking 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
5Active Systemsi
9Recent Violationsi
19Recent Violations (Last 5 Years)
Industrial Monitoringi
Toxic Release Inventory (TRI)i
TRIWastewater & Stormwater Permits (NPDES)i
NPDESContamination 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.