Water Quality & Forever Chemicals
Searched "is Houston tap water safe" at some odd hour and landed here? Here's the calm version: this page is a plain-English summary of what public federal water records show for Houston, Texas, not a verdict on your own faucet. The part that genuinely varies, address to address, is which utility and which Gulf Coast sources feed your line. We sorted through the datasets so you start from facts instead of a pile of search results.
3
PFAS detections in nearby water systems
EPA UCMR 5 (2021–2024) results matching the city name
0
Industrial PFAS facilities in city
EPA TRI 2024 reporting
6
DoD PFAS installations statewide
In Texas
Houston and much of the surrounding Gulf Coast region tend to rely on a blend of sources: surface water drawn from area rivers and reservoirs alongside groundwater pumped from the coastal aquifers beneath the region. Because the area has leaned increasingly on that surface water to ease pressure on the aquifers, Houston's water tends to be a mix rather than one single source you can point to.
Figuring out who actually serves a Houston address starts with the system listed above, since two homes a mile apart can sit on entirely different public water systems across Harris County and its many districts. Look up that utility's annual Consumer Confidence Report, which it's required to publish, and call the contact it names with questions about your street. When evaluating an address here, that system-level detail is worth reviewing, because the city-wide summary isn't necessarily what flows from your tap.
Where the Houston area leans on groundwater from coastal aquifers, the water can tend toward the harder side, while surface-sourced supplies often differ, so there's no single reliable number to quote here. We won't invent one. A cheap test strip tells you about your own tap in seconds, and your utility's annual report often lists hardness if you'd rather not decode the mood of your own water heater.
EPA required public water systems serving 3,300+ people to test 29 PFAS compounds between 2021 and 2024.
City-level numbers describe the broad pattern around Houston; two homes a mile apart can sit on different water systems with very different profiles. The address report fills that gap — it identifies the public water system serving a specific property, lists any PFAS detections on that exact system, and maps the nearby industrial and Superfund sources.
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EPA data tells you what your utility reported on the days they tested. A Tap Score kit tells you what's coming out of your faucet, right now. Mail-in lab, certified results in about a week. The same labs cities use.
Order a Tap Score kit →Guide
How to Check Drinking Water Quality Before Buying a Home
The 5-minute version of what an environmental consultant would look at.
Guide
PFAS “Forever Chemicals” — A Homebuyer's Guide
What PFAS are, why they matter, and what to do before closing.
How-to
How to Check for PFAS Near Your Address
A walkthrough of the federal datasets we pull from.
Checklist
Environmental Risks to Check Before Buying a House
A practical pre-offer checklist for buyers and agents.
This page summarizes what federal public records, like the UCMR 5 monitoring program, show for Houston, and detection in those records isn't the same as exceeding a limit. UCMR 5 leans toward larger systems, so a quiet result means no records turned up here, not a certified all-clear. The only address-level answer comes from the specific system serving that address.
Start with the system or systems listed on this page, then look up that utility's published contact details and its annual Consumer Confidence Report. Because adjacent Houston addresses can sit on different public water systems and districts, the one serving your street is the authority on your particular tap, not the city-wide picture.
Much of the Houston region tends to come from a blend of surface water from area rivers and reservoirs and groundwater from coastal aquifers. The area has leaned increasingly on surface water to ease pressure on the aquifers, so think of it as a regional mix rather than one fixed source for every Houston neighborhood.
Where the Houston area leans on coastal-aquifer groundwater, the water can tend toward the harder side, while surface-sourced supplies often differ, so there isn't a well-established figure to cite, and we won't invent one. Checking your own is straightforward: an inexpensive test strip gives a quick reading, and your utility's annual report often lists hardness too.
Enter an address — we'll identify the serving water utility, pull PFAS detections, FEMA flood zone, and nearby Superfund sites, then give you a plain-English A–F grade. $19.99 single, $29.99 two-address bundle.
One-time report. PFAS, water violations, Superfund sites, flood zone, air quality, and a plain-English A–F grade for the address.
More Texas data: Superfund sites · PFAS in Texas
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