💧 ZIP Water Report

Sienna Mud 10

PWSID TX0790452 · Houston, Texas · serves 7,824 people · groundwater source

B
Good

PFAS test results (EPA UCMR 5)

ContaminantResultFederal limit (MCL)Sampled
PFPeA 194 ppt — 10/11/2023
PFPeA 25.8 ppt — 4/4/2023
PFBA 9.6 ppt — 10/11/2023
PFHxA 5.7 ppt — 10/11/2023
PFBS 3.7 ppt — 10/11/2023

ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.

Violation history

DateViolationTypeHealth-basedStatus
2025-11-01 Revised Total Coliform Rule MON No Resolved

ZIP codes served