2026 WATER QUALITY INTELLIGENCE

Texas Water Quality

Water quality across 363 cities in Texas, drawn from EPA drinking-water records. Each city page shows the measured contaminants and a reproducible Purity Score.

Review the state record

Why no state score?

Explore the evidence geographically

Texas on the water intelligence map

Open the national map to locate published city reports and inspect the underlying place records. Map coverage is not a statewide safety assessment.

Open the map

363

water systems in the record

363

published city reports

contaminant patterns reported

Not published

published monitoring coverage

UPDATED 2026-09-16

record last updated

How to read this report

PurityMap tracks 363 cities and 363 public water systems in Texas. Scores reflect only what has been measured; a contaminant that was never tested is shown as pending, never as a pass.

What is being reported in Texas?

ContaminantCity reports with a published record

PFOA (forever chemical)363 PFOS (forever chemical)363 PFHxS (forever chemical)363 Lead363 Hard water360 Disinfectant type353 Total trihalomethanes (TTHM)10 Haloacetic acids (HAA5)10

Major water sources

Water-source summary not published

Source-water information varies by supplier and reporting period. Use a water-system record for the source description tied to a local utility.

Browse water systems

Explore Texas city reports

These reports are presented as a directory, not a ranking. Open a city to see its supplier, measurements, interpretation and source documents.

CityKey finding on recordReport

Largest systems in Texas

System directory not published for this state

The state report does not yet include an authored population-ordered system list. Use the national directory to search available records.

Browse water systems

Where the record is thin

Coverage-gap detail not published

This page does not quantify missing or stale records beyond the published indicators above. Treat an absent value as unknown, not as zero.

Read the data methodology

Understanding the limits

What this state view does not tell you

A statewide rollup cannot tell you what is delivered to a specific address. Water quality varies by supplier, sampling period and household plumbing. Use a city or water-system report for the evidence behind a local result.

Find the system behind your tap

What you can do next

Start with your supplier

State patterns cannot identify what reaches a specific address. Resolve your public water system before choosing treatment.

Find the system behind your tap

Match treatment to evidence

A technology is useful only when its certified claim addresses the contaminant and concentration in the local record.

Compare treatment technologies

Read the published contaminant guides

PFOA (forever chemical) PFOS (forever chemical) PFHxS (forever chemical) Lead

RECOMMENDED FILTERS

Filters for what’s on record in Texas

Matched to contaminant categories in this published record. Confirm the specific NSF/ANSI listing before you buy; recommendations follow the findings, and as an Amazon Associate PurityMap earns from qualifying purchases.

Countertop Reverse-Osmosis (Renter-Friendly)

Reverse Osmosis

Best for renters/apartments facing PFAS, lead, arsenic, or nitrate who cannot modify plumbing.

Read the analysis →

Faucet-Mount Filter

Activated Carbon

Best for a cheap, no-tools way to reduce lead and chlorine at a single faucet.

Read the analysis →

Countertop Gravity Filter

Gravity-Fed Activated Carbon

Best for renters or off-grid use who want no-plumbing lead and chlorine reduction on the counter.

Read the analysis →

NSF/ANSI 53 Lead-Reduction Filter

Activated Carbon Block

Best when lead is the main concern and you want a low-cost, no-plumbing option.

Read the analysis →

Frequently asked questions

How much of Texas does PurityMap cover?

PurityMap has published records for 363 cities across 363 public water systems in Texas. Each links back to its dated source record.

What are the most common water concerns in Texas?

Across published Texas city records, the contaminants that appear most are PFOA (forever chemical) (363 cities), PFOS (forever chemical) (363 cities), PFHxS (forever chemical) (363 cities), Lead (363 cities). This reflects what has been monitored and reported, not a ranking of risk.

Sources and methodology

PurityMap assembles this page from the published city and water-system records represented above. Every local report carries its own measurement dates and source documents.

About state sources

How PurityMap analyzes water data

What is being reported in Texas?

Major water sources

Water-source summary not published

Explore Texas city reports

Largest systems in Texas

System directory not published for this state

Where the record is thin

Coverage-gap detail not published

Understanding the limits

What this state view does not tell you

What you can do next

Start with your supplier

Match treatment to evidence

Filters for what’s on record in Texas

Frequently asked questions

Sources and methodology

Related intelligence

START WITH THE WATER AT YOUR ADDRESS.