Environment
Graystone Elementary — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Graystone Elementary in San Jose, California.
Latest Air Quality Index
41
Good · monitor 14.1 km away
PM2.5 annual7.4 µg/m³
Water health violations 10yr2
TRI sites within 1 mi1
Air Quality
EPA AirNow + AQS · 2024
41
AQI latest — Good
41
AQI 7-day avg
3
Days unhealthy in last 90
7.4
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
36.1
Ozone annual ppb
25.7
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)
1
TRI sites within 1 mile
15
TRI sites within 5 miles
3.7 mi
Nearest Superfund (NPL)
FAIRCHILD SEMICONDUCTOR CORP SOUTH SAN JOSE PLANT
5.6 mi
Nearest brownfield
ORVIETO FAMILY APARTMENTS
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).