Environment
KOCH ELEM. — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of KOCH ELEM. in ST LOUIS, Missouri.
Latest Air Quality Index
44
Good · monitor 11.1 km away
PM2.5 annual8.0 µg/m³
Water health violations 10yr0
TRI sites within 1 mi0
Air Quality
EPA AirNow + AQS · 2024
44
AQI latest — Good
44
AQI 7-day avg
3
Days unhealthy in last 90
8.0
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
42.8
Ozone annual ppb
21.2
NO₂ annual ppb
Public Water System
ST LOUIS CITY PWS · PWS MO6010715
0
Health-based violations (10yr)
0
Acute violations (10yr)
304,709
Population served
66
Most recent violation type
2025-12-30
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
0
TRI sites within 1 mile
50
TRI sites within 5 miles
5.3 mi
Nearest Superfund (NPL)
ST LOUIS AIRPORT HAZELWOOD INTERIM STORAGE FUTURA COATINGS CO
0.8 mi
Nearest brownfield
MALINE CREEK AT WEST FLORISSANT
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).