Falcon Crest Addition

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: 210 people
Connections: 70
Water source: Groundwater
Based in: Austin, TX
County: Johnson
Owner: Private

The ZIP code it serves

76058

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. 1 health-based violation since 2016.

What was found

Fluoride, haloacetic acids (HAA5), total trihalomethanes (TTHM), nitrate, chromium (total), arsenic and uranium: Texas’s own results, samples taken from Dec. 11, 2020 to March 12, 2026, with EPA’s 2012 to 2019 file for earlier years.

Below EPA’s limits5

Fluoride

Forms or is added in treatment

Below EPA’s limits

1.6ppm

Highest yearly average, 2022 to 2025

2025, one sample: 1.6 ppm

Averaged by year, the highest was 1.6 ppm, in 2022, below EPA’s legal limit of 4.0 ppm. In 2025, the latest year on file, its one sample was 1.6 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 1.7 ppm, in 2019.

What handles it

NSF/ANSI 58 look for “Fluoride Reduction”
NSF/ANSI 53 look for “Fluoride”

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

5.2ppb

Highest yearly average, 2022 to 2025

Averaged by year, the highest was 5.2 ppb, in 2025, below EPA’s legal limit of 60 ppb. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 6.3 ppb, in 2016.

What handles it

No certification claim covers this compound yet.

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

4.5ppb

Highest yearly average, 2022 to 2025

Averaged by year, the highest was 4.5 ppb, in 2025, below EPA’s legal limit of 80 ppb. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 5.8 ppb, in 2016.

What handles it

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

Nitrate

Comes from the source

Below EPA’s limits

0.23ppm

Highest sample; found in 7 of 7

2026, one sample: 0.03 ppm

The highest sample, in 2023, was 0.23 ppm, below EPA’s legal limit of 10 ppm. In 2026, the latest year on file, its one sample was 0.03 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 0.037 ppm, in 2019.

What handles it

NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”

Chromium (total)

Comes from the source

Below EPA’s limits

1.1ppb

Highest yearly average, 2022 to 2025

Averaged by year, the highest was 1.1 ppb, in 2025, below EPA’s legal limit of 100 ppb. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 4.5 ppb, in 2012.

What handles it

NSF/ANSI 58 look for “Chromium (Hexavalent) Reduction”
NSF/ANSI 53 look for “Chromium Reduction”

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

Contaminant or rule	Type	Period	Measured	Status
Coliform (TCR)	Maximum Contaminant Level Violation, Acute (TCR)	March 1, 2016 to March 31, 2016	—	Resolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 1 monitoring or reporting violation not shown.

What this report can’t tell you

Everything else. Fluoride, haloacetic acids (HAA5), total trihalomethanes (TTHM), nitrate, chromium (total), arsenic and uranium results here are Texas’s own from 2020 on, with EPA’s national file for 2012 to 2019. Falcon Crest Addition’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 Dec. 11, 2020 to March 12, 2026.

Testing your own tap

Falcon Crest Addition’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 Falcon Crest Addition serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

Tarrant County Public Health Laboratory
Fort Worth, TX · about 19 miles
Certified for bacteria
(817) 321-4758
Pace Analytical Services, LLC -Dallas TX
Fort Worth, TX · about 26 miles
Certified for bacteria
(817) 616-5030
Environmental Monitoring Lab
Hillsboro, TX · about 35 miles
Certified for bacteria
(254) 582-2622

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