Environment
Madison Elementary — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Madison Elementary in Mount Vernon, Washington.
Latest Air Quality Index
24
Good · monitor 23.3 km away
PM2.5 annual4.4 µg/m³
Water health violations 10yr0
TRI sites within 1 mi1
Air Quality
EPA AirNow + AQS · 2024
24
AQI latest — Good
24
AQI 7-day avg
3
Days unhealthy in last 90
4.4
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
32.4
Ozone annual ppb
Public Water System
SKAGIT COUNTY PUD 1 JUDY RES · PWS WA5379500
0
Health-based violations (10yr)
0
Acute violations (10yr)
111,415
Population served
71
Most recent violation type
2024-07-01
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
1
TRI sites within 1 mile
11
TRI sites within 5 miles
16.4 mi
Nearest Superfund (NPL)
NAVAL AIR STATION WHIDBEY ISLAND AULT FIELD
6.3 mi
Nearest brownfield
SEDRO WOOLLEY LUMBER CO
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).