Tap water in Rio Hondo, TX — ZIP 78578
2 public water systems serving about 72,183 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 78578
Laguna Madre Water District
PWSID TX0310005 · serves 46,674 ·
surface water
0 health-based / 1 total violations (5 yrs)
· PFAS up to 14.3 ppt
East Rio Hondo Wsc
PWSID TX0310096 · serves 25,509 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 14.8 ppt — above federal limit
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology