Environment
Trinity Episcopal School — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Trinity Episcopal School in Marshall, Texas.
Latest Air Quality Index
52
Moderate · monitor 25.8 km away
PM2.5 annual9.6 µg/m³
Water health violations 10yr16
TRI sites within 1 mi0
Air Quality
EPA AirNow + AQS · 2024
52
AQI latest — Moderate
52
AQI 7-day avg
3
Days unhealthy in last 90
9.6
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
43.6
Ozone annual ppb
5.7
NO₂ annual ppb
Public Water System
CITY OF MARSHALL · PWS TX1020002
16
Health-based violations (10yr)
16
Acute violations (10yr)
23,091
Population served
52
Most recent violation type
2025-10-01
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
0
TRI sites within 1 mile
11
TRI sites within 5 miles
17.9 mi
Nearest Superfund (NPL)
LONGHORN ARMY AMMUNITION PLANT
1.4 mi
Nearest brownfield
MARSHALL SCRAPYARD THIGPEN PROPERTY BLOCK 1
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).