Environment
William Walker Elementary School — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of William Walker Elementary School in Portland, Oregon.
Latest Air Quality Index
27
Good · monitor 12.2 km away
PM2.5 annual4.8 µg/m³
Water health violations 10yr1
TRI sites within 1 mi2
Air Quality
EPA AirNow + AQS · 2024
27
AQI latest — Good
27
AQI 7-day avg
3
Days unhealthy in last 90
4.8
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
40.0
Ozone annual ppb
16.7
NO₂ annual ppb
Public Water System
PORTLAND WATER BUREAU · PWS OR4100657
1
Health-based violations (10yr)
0
Acute violations (10yr)
666,200
Population served
3A
Most recent violation type
2022-07-01
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
2
TRI sites within 1 mile
29
TRI sites within 5 miles
6.1 mi
Nearest Superfund (NPL)
MCCORMICK BAXTER CREOSOTING CO PORTLAND PLANT
0.6 mi
Nearest brownfield
BUFFET PALACE PROPERTY
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).