K & K Water South

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: 213 people
Connections: 80
Water source: Groundwater
Based in: Red Rock, TX
County: Bastrop
Owner: Private

The ZIP code it serves

78662

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

Total trihalomethanes (TTHM), fluoride, nitrate, haloacetic acids (HAA5), arsenic and chromium (total): Texas’s own results, samples taken from March 17, 2020 to July 8, 2026, with EPA’s 2012 to 2019 file for earlier years.

Uranium: EPA’s compliance monitoring file, samples taken from Oct. 25, 2017 to Oct. 25, 2017. Newer results are in the utility’s annual water quality report.

Below EPA’s limits4

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

29.2ppb

Highest yearly average, 2022 to 2025

Averaged by year, the highest was 29.2 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 30.5 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

0.3ppm

Highest yearly average, 2022 to 2025

2025: not found

Averaged by year, the highest was 0.3 ppm, in 2022, below EPA’s legal limit of 4.0 ppm. In 2025, the latest year on file, it wasn’t found in its one sample. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.3 ppm, in 2016.

What handles it

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

Nitrate

Comes from the source

Below EPA’s limits

0.68ppm

Highest sample; found in 4 of 7

2026: not found

The highest sample, in 2022, was 0.68 ppm, below EPA’s legal limit of 10 ppm. In 2026, the latest year on file, it wasn’t found in its one sample. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 0.58 ppm, in 2019.

What handles it

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

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

3.8ppb

Highest yearly average, 2022 to 2025

Averaged by year, the highest was 3.8 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 3.3 ppb, in 2019.

What handles it

No certification claim covers this compound yet.

4 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.

Arsenic
Chromium (total)
Lead
Uranium

Violations since 2016

Contaminant or rule	Type	Period	Measured	Status
Lead and Copper Rule Revisions	The required inventory of lead service lines was not completed or submitted on time.EPA: LSL Inventory	Oct. 17, 2024	—	Resolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 5 monitoring or reporting violations not shown.

What this report can’t tell you

Everything else. Total trihalomethanes (TTHM), fluoride, nitrate, haloacetic acids (HAA5), arsenic and chromium (total) results here are Texas’s own from 2020 on, with EPA’s national file for 2012 to 2019. Uranium comes from EPA’s file alone, which ends in 2019. K & K Water South’s own annual report, which it must send you every year, has newer results for those and 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 March 17, 2020 to July 8, 2026; EPA’s compliance samples are from Oct. 25, 2017 to Oct. 25, 2017.

Testing your own tap

K & K Water South’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 K & K Water South serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

Aqua-Tech Laboratories, Inc.
Austin, TX · about 25 miles
Certified for bacteria, lead and copper
(512) 301-9559
Edwards Aquifer Research & Data Center, Texas State University
San Marcos, TX · about 33 miles
Certified for bacteria
(512) 245-2329
Texas Department of State Health Services Laboratory Services Section
Austin, TX · about 33 miles
Certified for bacteria, lead and copper
(512) 458-7318

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