Tap Water Results

Is Leander, TX tap water safe?

Data: U.S. EPA · How we read the data · How we check it

Summary

No federal limits exceeded in EPA data for City of Austin Water & Wastewater. 6 PFAS were detected below the limits.

5 public water systems serve parts of Leander. The largest, City of Austin Water & Wastewater, serves 1.1 million people. Your water bill names your system.

Largest system

City of Austin Water & Wastewater

1.1 million people · Surface water · EPA ID TX2270001

PFASHighest averageLimitStatus
PFOA
Not detected
–4 pptNot detected
PFOS
One sample above limit
1.2 ppt4 pptOne sample above limit
PFHxS
Detected, below limit
3.65 ppt10 pptDetected, below limit
PFNA
Not detected
–10 pptNot detected
HFPO-DA (GenX)
Not detected
–10 pptNot detected

ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.

Lead: 0 ppb at the 90th percentile (Dec 2024, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 5

Full City of Austin Water & Wastewater results

Across Texas, 28 of 1,130 water systems EPA tested had PFAS above a 2024 federal limit, and 13 systems were above the lead action level in results from the last five years. Texas results.

Leander homes and lead pipes

3%
of homes built before 1980 (Texas 33%, US 50%)
0%
built before 1950 (Texas 6%)
27%
of households rent (Texas 37%)

Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. City of Austin Water & Wastewater's service line inventory lists 0 lead lines and 777 galvanized lines that need replacing (as of 2024-10). Look up your address. How to check your own line.

Housing: Census American Community Survey 2020–2024 5-year estimates for Leander city (tables B25034, B25003). Estimates for small places have a margin of error.

Other water systems serving Leander

  • City of Leander
    98,330 people · Surface water · Texas · lists this city
    No PFAS above limits
  • Block House Municipal Utility District
    6,618 people · Purchased surface water · Texas · reported ZIPs here
    No PFAS above limits
  • Sandy Creek Ranches Subdivision
    2,022 people · Groundwater · Texas · reported ZIPs here
    Lithium above screening level
  • Sail Haven Water System
    129 people · Surface water · Texas · reported ZIPs here
    Not in EPA's PFAS sampleAlso: 4 health-based violations since 2016

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Cedar Park 5 mi
City of Austin Water & Wastewater
City of Austin Water & WastewaterNone above limits0 ppb
Georgetown 12 mi
City of Georgetown
City of GeorgetownNone above limits4.81 ppb
Round Rock 12 mi
City of Austin Water & Wastewater
City of Austin Water & WastewaterNone above limits0 ppb
Pflugerville 18 mi
City of Austin Water & Wastewater
City of Austin Water & WastewaterNone above limits0 ppb
Hutto 19 mi
Manville Water Supply Corporation
Manville Water Supply CorporationAbove limit1.41 ppb
Austin 20 mi
City of Austin Water & Wastewater
City of Austin Water & WastewaterNone above limits0 ppb
Leander ZIP codes (1)
  • 78641

Questions

Is Leander tap water safe to drink?

City of Austin Water & Wastewater had 5 health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.

Who supplies water in Leander, TX?

5 public water systems serve parts of Leander. The largest is City of Austin Water & Wastewater (1.1 million people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Leander tap water have PFAS?

City of Austin Water & Wastewater had 6 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.

Do Leander homes have lead pipes?

Census estimates put 3% of Leander homes as built before 1980 (Texas: 33%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. City of Austin Water & Wastewater's service line inventory lists 0 lead lines. The only way to know for your home is to check the line where it enters the house and test your tap.

Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.