Environment
Oster Elementary — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Oster Elementary in San Jose, California.
Latest Air Quality Index
51
Moderate · monitor 10.6 km away
PM2.5 annual8.0 µg/m³
Water health violations 10yr2
TRI sites within 1 mi0
Air Quality
EPA AirNow + AQS · 2024
51
AQI latest — Moderate
51
AQI 7-day avg
3
Days unhealthy in last 90
8.0
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
36.1
Ozone annual ppb
23.7
NO₂ annual ppb
Public Water System
SAN JOSE WATER · PWS CA4310011
2
Health-based violations (10yr)
0
Acute violations (10yr)
1,039,920
Population served
41 (health-based)
Most recent violation type
2023-06-01
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
0
TRI sites within 1 mile
25
TRI sites within 5 miles
5.3 mi
Nearest Superfund (NPL)
LORENTZ BARREL DRUM CO
4.2 mi
Nearest brownfield
3275 WILLIAMS ROAD
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).