Oakwood Subdivision Water System

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: 570 people
Connections: 190
Water source: Groundwater
Based in: Athens, TX
County: Henderson
Owner: Private

The ZIP code it serves

75752

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), fluoride, chromium (total), haloacetic acids (HAA5), nitrate, arsenic and uranium: Texas’s own results, samples taken from May 27, 2020 to Feb. 2, 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

11.6ppb

Highest yearly average, 2022 to 2025

Averaged by year, the highest was 11.6 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 12.7 ppb, in 2019.

What handles it

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

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.094ppm

Highest yearly average, 2021 to 2024

2024, one sample: 0.087 ppm

Averaged by year, the highest was 0.094 ppm, in 2021, below EPA’s legal limit of 4.0 ppm. In 2024, the latest year on file, its one sample was 0.087 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.15 ppm, in 2012.

What handles it

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

Chromium (total)

Comes from the source

Below EPA’s limits

1.9ppb

Highest yearly average, 2022 to 2025

2025: not found

Averaged by year, the highest was 1.9 ppb, in 2022, below EPA’s legal limit of 100 ppb. In 2025, the latest year on file, it wasn’t found in its one sample.

What handles it

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

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

1.0ppb

Highest yearly average, 2022 to 2025

Averaged by year, the highest was 1.0 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 1.7 ppb, in 2016.

What handles it

No certification claim covers this compound yet.

Nitrate

Comes from the source

Below EPA’s limits

0.043ppm

Highest sample; found in 7 of 7

2026, one sample: 0.028 ppm

The highest sample, in 2025, was 0.043 ppm, below EPA’s legal limit of 10 ppm. In 2026, the latest year on file, its one sample was 0.028 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 0.042 ppm, in 2018.

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. There are 15 monitoring or reporting violations: a sample missed, late or not reported.

What this report can’t tell you

Everything else. Total trihalomethanes (TTHM), fluoride, chromium (total), haloacetic acids (HAA5), nitrate, arsenic and uranium results here are Texas’s own from 2020 on, with EPA’s national file for 2012 to 2019. Oakwood Subdivision Water System’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 27, 2020 to Feb. 2, 2026.

Testing your own tap

Oakwood Subdivision Water System’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 Oakwood Subdivision Water System 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 28 miles
Certified for bacteria
(903) 509-8700
Northeast Texas Public Health District Laboratory
Tyler, TX · about 29 miles
Certified for bacteria
(903) 535-0090
Environmental Monitoring Lab
Winona, TX · about 44 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