Tap water in Mont Belvieu, TX — ZIP 77523
4 public water systems serving about 109,372 people. PFAS "forever chemicals" have been detected here.
F
Failing
PFAS detected: at least one system serving this ZIP reported PFAS in EPA UCMR 5
testing. Levels and the 2024 federal limits are shown per system below.
Water systems serving 77523
City Of Baytown
PWSID TX1010003 · serves 86,004 ·
surface water
0 health-based / 1 total violations (5 yrs)
· PFAS up to 14.6 ppt — above federal limit
City Of Mont Belvieu
PWSID TX0360017 · serves 12,864 ·
groundwater
5 health-based / 6 total violations (5 yrs)
Gray Utility Service
PWSID TX0360005 · serves 8,004 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Chambers County Mud 1
PWSID TX0360104 · serves 2,500 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 157 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology