Tap water in Houston, TX — ZIP 77443
2 public water systems serving about 46,266 people. PFAS "forever chemicals" have been detected here.
B
Good
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 77443
Harris County Mud 165
PWSID TX1012187 · serves 40,503 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 4.7 ppt
Harris County Mud 70
PWSID TX1011690 · serves 5,763 ·
surface water
0 health-based / 1 total violations (5 yrs)
· PFAS up to 9.2 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology