Environment
JAMES E WILLIAMS EL — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of JAMES E WILLIAMS EL in KATY, Texas.
Latest Air Quality Index
51
Moderate · monitor 12.6 km away
PM2.5 annual9.2 µg/m³
Water health violations 10yr0
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
9.2
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
45.0
Ozone annual ppb
16.6
NO₂ annual ppb
Public Water System
CITY OF KATY · PWS TX1010017
0
Health-based violations (10yr)
0
Acute violations (10yr)
25,253
Population served
34
Most recent violation type
2025-06-24
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
0
TRI sites within 1 mile
6
TRI sites within 5 miles
12.1 mi
Nearest Superfund (NPL)
CRYSTAL CHEMICAL CO
10.1 mi
Nearest brownfield
7777 DAIRY ASHFORD ST
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).