Tap water in Houston, TX — ZIP 77429
14 public water systems serving about 117,457 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 77429
Northwest Harris County Mud 5
PWSID TX1010884 · serves 25,425 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 19.2 ppt
Harris County Fwsd 61
PWSID TX1010237 · serves 15,400 ·
groundwater
0 health-based / 1 total violations (5 yrs)
Cypress Hill Mud 1
PWSID TX1012378 · serves 11,052 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Faulkey Gully Mud
PWSID TX1011602 · serves 8,907 ·
surface water
0 health-based / 1 total violations (5 yrs)
· PFAS up to 6.7 ppt
Northwest Harris County Mud 9
PWSID TX1011599 · serves 8,886 ·
groundwater
0 health-based / 1 total violations (5 yrs)
Harris County Mud 391
PWSID TX1013253 · serves 8,835 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Northwest Harris County Mud 10
PWSID TX1011649 · serves 7,671 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Lake Forest Utility District
PWSID TX1010494 · serves 6,201 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 5.3 ppt
Harris County Mud 364
PWSID TX1013132 · serves 6,168 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Harris County Mud 360
PWSID TX1012897 · serves 4,707 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Harris County Mud 365
PWSID TX1013009 · serves 4,461 ·
groundwater
0 health-based / 2 total violations (5 yrs)
Harris County Mud 69
PWSID TX1010600 · serves 4,422 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Harris County Mud 18 Heatherwood Hunters
PWSID TX1010512 · serves 4,083 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 6 ppt
Lakes Of Rosehill Water System
PWSID TX1013050 · serves 1,239 ·
groundwater
0 health-based / 1 total violations (5 yrs)
· PFAS up to 6.9 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology