Tap water in San Leon, TX — ZIP 77539
2 public water systems serving about 42,021 people. PFAS "forever chemicals" have been detected here.
C
Fair
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 77539
Galveston County Wcid 1
PWSID TX0840001 · serves 30,399 ·
surface water
0 health-based / 1 total violations (5 yrs)
· PFAS up to 157 ppt
San Leon Mud
PWSID TX0840063 · serves 11,622 ·
surface water
0 health-based / 5 total violations (5 yrs)
· PFAS up to 74.9 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology