Tap water in Houston, TX — ZIP 77046
2 public water systems serving about 2,976,528 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 77046
City Of Houston
PWSID TX1010013 · serves 2,970,543 ·
surface water
1 health-based / 1 total violations (5 yrs)
· PFAS up to 42.6 ppt
Fort Bend County Mud 146
PWSID TX0790435 · serves 5,985 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 7.1 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology