Environment
CORE4 — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of CORE4 in Greenfield, Wisconsin.
Latest Air Quality Index
37
Good · monitor 10.3 km away
PM2.5 annual6.7 µg/m³
Water health violations 10yr0
TRI sites within 1 mi0
Air Quality
EPA AirNow + AQS · 2024
37
AQI latest — Good
37
AQI 7-day avg
1
Days unhealthy in last 90
6.7
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
44.6
Ozone annual ppb
21.5
NO₂ annual ppb
Public Water System
GORDIE BOUCHER FORD OF THIENSVILLE INC · PWS WI2460194
0
Health-based violations (10yr)
0
Acute violations (10yr)
70
Population served
—
Most recent violation type
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
0
TRI sites within 1 mile
46
TRI sites within 5 miles
7.5 mi
Nearest Superfund (NPL)
MUSKEGO SANITARY LANDFILL
2.0 mi
Nearest brownfield
116TH MORGAN AVENUE COMPOST SITE
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).