Tap water in Harlingen, TX — ZIP 78552
3 public water systems serving about 117,220 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 78552
Harlingen Water Works System
PWSID TX0310002 · serves 85,900 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 8.8 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
City Of Primera
PWSID TX0310094 · serves 5,811 ·
surface water
0 health-based / 4 total violations (5 yrs)
· PFAS up to 13.6 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology