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Highsaw

What EPA’s and Texas’s records show in this utility’s water: nitrate, arsenic and other regulated chemicals; lead and copper; and violations since 2016, with the certification that handles each result.

Serves
1,815 people
Connections
605
Water source
Groundwater
Based in
Austin, TX
County
Henderson
Owner
Private
The ZIP code it serves

75763

The short answer

Nothing in EPA’s and Texas’s records for this utility is above a health goal. That covers nitrate, arsenic and other regulated chemicals, plus lead and copper, not everything. No health-based violations on file since 2016.

What was found

Total trihalomethanes (TTHM), haloacetic acids (HAA5), chromium (total), fluoride, nitrate, arsenic and uranium: Texas’s own results, samples taken from May 14, 2020 to Sept. 9, 2026, with EPA’s 2012 to 2019 file for earlier years.

Below EPA’s limits5

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

53.3ppb

Highest yearly average, 2020 to 2026

2026 average: 37.3 ppb

Averaged by year, the highest was 53.3 ppb, in 2023, below EPA’s legal limit of 80 ppb. Its highest single sample was 59.7 ppb. In 2026, the latest year on file, its two samples averaged 37.3 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 47.1 ppb, in 2014.

What handles it

  • NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
  • NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

10ppb

Highest yearly average, 2020 to 2026

2026 average: 9.0 ppb

Averaged by year, the highest was 10 ppb, in 2025, below EPA’s legal limit of 60 ppb. Its highest single sample was 11.4 ppb. In 2026, the latest year on file, its two samples averaged 9.0 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 11.6 ppb, in 2018.

What handles it

No certification claim covers this compound yet.

Chromium (total)

Comes from the source

Below EPA’s limits

4.4ppb

Highest yearly average, 2021 to 2024

2024, one sample: 1.8 ppb

Averaged by year, the highest was 4.4 ppb, in 2021, below EPA’s legal limit of 100 ppb. In 2024, the latest year on file, its one sample was 1.8 ppb.

What handles it

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.16ppm

Highest yearly average, 2021 to 2024

2024, one sample: 0.16 ppm

Averaged by year, the highest was 0.16 ppm, in 2021, below EPA’s legal limit of 4.0 ppm. In 2024, the latest year on file, its one sample was 0.16 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.23 ppm, in 2012.

What handles it

Nitrate

Comes from the source

Below EPA’s limits

0.05ppm

Highest sample; found in 6 of 6

2025, one sample: 0.05 ppm

The highest sample, in 2025, was 0.05 ppm, below EPA’s legal limit of 10 ppm. That was also the latest year on file, and its one sample was 0.05 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 0.067 ppm, in 2014.

What handles it

  • NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
  • NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”
3 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Arsenic
  • Lead
  • Uranium

Violations since 2016

No health-based violations on file with EPA since 2016.

What this report can’t tell you

  • Everything else. Total trihalomethanes (TTHM), haloacetic acids (HAA5), chromium (total), fluoride, nitrate, arsenic and uranium results here are Texas’s own from 2020 on, with EPA’s national file for 2012 to 2019. Highsaw’s own annual report, which it must send you every year, has the contaminants this page does not show.

  • Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.

  • What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.

  • Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 didn’t sample this utility; Texas’s results run from May 14, 2020 to Sept. 9, 2026.

Testing your own tap

Highsaw’s results are for the water it sends out. What your own service line, solder and fixtures add shows up only in a test of your tap, by a lab Texas certifies.

The 3 labs Texas certifies closest to the area Highsaw serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Analytical Environmental Labs

    Tyler, TX · about 18 miles

    Certified for bacteria

    (903) 509-8700

  • Northeast Texas Public Health District Laboratory

    Tyler, TX · about 25 miles

    Certified for bacteria

    (903) 535-0090

  • Environmental Monitoring Lab

    Winona, TX · about 39 miles

    Certified for bacteria

    (903) 877-9222

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 Texas

Sources

PWSID TX1070124. Rebuilt from EPA data on Oct. 18, 2026.

Also in Henderson County

All Texas utilities

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