Environment
Semper Elementary School — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Semper Elementary School in WESTMINSTER, Colorado.
Latest Air Quality Index
41
Good · monitor 11.7 km away
PM2.5 annual7.1 µg/m³
Water health violations 10yr0
TRI sites within 1 mi0
Air Quality
EPA AirNow + AQS · 2024
41
AQI latest — Good
41
AQI 7-day avg
1
Days unhealthy in last 90
7.1
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
57.0
Ozone annual ppb
6.3
NO₂ annual ppb
Public Water System
WESTMINSTER CITY OF · PWS CO0101170
0
Health-based violations (10yr)
0
Acute violations (10yr)
202,078
Population served
36
Most recent violation type
2025-01-01
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
0
TRI sites within 1 mile
15
TRI sites within 5 miles
6.4 mi
Nearest Superfund (NPL)
BRODERICK WOOD PRODUCTS
1.4 mi
Nearest brownfield
DENVER URBAN GARDENS AT LITTLE ELEMENTARY
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).