Harris County MUD 144
Harris County MUD 144 (EPA ID TX1010923) in Houston, TX supplies surface water (rivers, lakes) to about 3,219 people: 1 violation since 2016, latest lead result 34.6 ppb, PFAS not tested.
Health-based violations since 2016: Lead and Copper Rule. All are listed as resolved.
The 90th-percentile lead level in the latest round (Jan 2026) was above EPA's 15 ppb action level, which requires the utility to take further steps.
This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5 covers systems serving over 3,300 people and a sample of smaller ones).
Service area
EPA service-area boundary (state-supplied or EPA-modeled)System facts
Health-based violations
| Contaminant or rule | Health-based violations since 2016 |
|---|---|
| Lead and Copper Rule | 1 |
A health-based violation means a contaminant exceeded its legal limit (MCL) or a required treatment technique was not met, as reported by the state to EPA’s SDWIS. All are listed as resolved or archived; the latest began Oct 2024.
Lead
90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.
PFAS
This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).
What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.
Questions
Has Harris County MUD 144 had drinking water violations?
Health-based violations since 2016: Lead and Copper Rule. All are listed as resolved.
What is the lead level in Harris County MUD 144 water?
The latest 90th-percentile lead result (Jan 2026) was 34.6 ppb. EPA’s action level is 15 ppb (10 ppb from 2027).
Does Harris County MUD 144 have PFAS in its water?
This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5 covers systems serving over 3,300 people and a sample of smaller ones).