Is Hornsby Bend, TX tap water safe?
The short answer
3 of the 5 utilities serving Hornsby Bend have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Texas’s records: City of Austin Water & Wastewater, Manville WSC and Kennedy Ridge WSC.
City of Austin Water & Wastewater, which serves the most people here, has 1 result above EPA’s new limit, which takes effect in 2029. The worst: PFOS at 4.8 ppt, above EPA’s new limit, which takes effect in 2029.
The water from City of Austin Water & Wastewater is moderately hard on average, 93 mg/L (5.4 grains per gallon), ranging from 70 to 126 mg/L. How it compares.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Hornsby Bend’s ZIP codes, from EPA’s estimates.
- Open report
City of Austin Water & Wastewater
Texas · serves 1.1 million people · about 3,800 in Hornsby Bend
1 result above EPA’s new limit, which takes effect in 2029. The worst: PFOS at 4.8 ppt, above EPA’s new limit, which takes effect in 2029. Hardness: moderately hard on average, 93 mg/L (5.4 grains per gallon), ranging from 70 to 126 mg/L.
5 health-based violations since 2016
- Open report
Austins Colony
Texas · serves 9,987 people · about 2,900 in Hornsby Bend
3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 21 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
Manville WSC
Texas · serves 39,648 people · about 200 in Hornsby Bend
1 result above the legal limit, 3 results above EPA’s new limit, which takes effect in 2029, 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Total trihalomethanes (TTHM) at 76.5 ppb, above the legal limit.
5 health-based violations since 2016
- Open report
Nighthawk WSC
Texas · serves 396 people · about 160 in Hornsby Bend
Nothing in its records is above a health goal.
No health-based violations since 2016
- Open report
Kennedy Ridge WSC
Texas · serves 930 people · about 150 in Hornsby Bend
1 result above the health goal. The worst: Lead at 1.6 ppb, above the health goal.
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in City of Austin Water & Wastewater’s water, which serves the most people here. Another utility’s report names what handles its own results.
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ZeroWater 10 Cup Pitcher (ZP-010)
Pitcher
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53checked Oct. 4, 2026
Certified for: PFOS
Aquasana Claryum Direct Connect (AQ-MF-1)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOS
Express Water StreamLine Direct Connect System (USC001)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOS
Water testing near Hornsby Bend
The 3 labs Texas certifies closest to Hornsby Bend, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Texas Department of State Health Services Laboratory Services Section
Austin, TX · about 9 miles
Certified for bacteria, lead and copper
Aqua-Tech Laboratories, Inc.
Austin, TX · about 9 miles
Certified for bacteria, lead and copper
Integrity Testing, Inc.
Austin, TX · about 13 miles
Certified for lead and copper
Texas Well Owner Network, Texas A&M AgriLife Extension: Well Informed screening events, where well owners bring in water samples to be screened for common contaminants, followed by an hour-long session explaining the results. Upcoming events are on the network's calendar. Trainings, Texas Well Owner Network.
All 80 certified labs for TexasWhich ZIP codes are in Hornsby Bend: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: TCEQ, drinking water laboratories approved for public water system samples; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Hornsby Bend
Other towns in Travis County with a page of their own.
What to do next
- Read City of Austin Water & Wastewater’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for PFOSRanked by certification and what they cost over five years.The best water filters for PFAS, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water