Tap water in Houston, TX — ZIP 77386
10 public water systems serving about 72,415 people. PFAS "forever chemicals" have been detected here.
A
Excellent
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 77386
Southern Montgomery County Mud
PWSID TX1700073 · serves 13,372 ·
surface water
0 health-based / 1 total violations (5 yrs)
Rayford Road Mud
PWSID TX1700334 · serves 11,550 ·
surface water
0 health-based / 0 total violations (5 yrs)
Harris County Wcid 110
PWSID TX1010482 · serves 9,807 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 8 ppt
Spring Creek Utility District
PWSID TX1700133 · serves 8,919 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Montgomery County Mud 119 Spring Trails
PWSID TX1700773 · serves 6,621 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Montgomery County Mud 94
PWSID TX1700716 · serves 5,184 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Harris County Improvement District 18
PWSID TX1013479 · serves 5,025 ·
groundwater
0 health-based / 1 total violations (5 yrs)
Montgomery County Mud 89
PWSID TX1700717 · serves 4,761 ·
groundwater
0 health-based / 0 total violations (5 yrs)
El Dorado Utility District
PWSID TX1010471 · serves 3,591 ·
groundwater
0 health-based / 0 total violations (5 yrs)
City Of Oak Ridge North
PWSID TX1700025 · serves 3,585 ·
surface water
0 health-based / 0 total violations (5 yrs)
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology