Environment
Custer Elem — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Custer Elem in Custer, Washington.
Latest Air Quality Index
31
Good · monitor 22.1 km away
PM2.5 annual5.7 µg/m³
Water health violations 10yr0
TRI sites within 1 mi0
Air Quality
EPA AirNow + AQS · 2024
31
AQI latest — Good
31
AQI 7-day avg
3
Days unhealthy in last 90
5.7
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
38.8
Ozone annual ppb
Public Water System
OLD SETTLERS WATER ASSOCIATION · PWS WA5363350
0
Health-based violations (10yr)
0
Acute violations (10yr)
540
Population served
71
Most recent violation type
2025-07-01
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
0
TRI sites within 1 mile
8
TRI sites within 5 miles
11.7 mi
Nearest Superfund (NPL)
OESER CO
11.9 mi
Nearest brownfield
LITTLE SQUALICUM
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).