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Rehobeth WSC

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
1,095 people
Connections
365
Water source
Surface water bought from another system
Based in
Carthage, TX
County
Panola
Owner
Local government
The ZIP code it serves

75633

The short answer

2 results are above EPA’s legal limit. The worst: Haloacetic acids (HAA5), above the legal limit. 5 health-based violations since 2016.

What handles it

What was found

Haloacetic acids (HAA5), total trihalomethanes (TTHM) and nitrate: Texas’s own results, samples taken from March 11, 2020 to July 14, 2026, with EPA’s 2012 to 2019 file for earlier years.

Above the legal limit2

Haloacetic acids (HAA5)

Forms or is added in treatment

Above the legal limit

55.4ppb

Highest yearly average, 2020 to 2026

2026 average: 6.2 ppb

Averaged by year, the highest was 55.4 ppb, in 2024, below EPA’s legal limit of 60 ppb. Its highest single sample was 108 ppb. In 2026, the latest year on file, its six samples averaged 6.2 ppb. EPA judges this limit at each sampling point, and recorded a violation for haloacetic acids (HAA5) at this utility in 2025. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 43.8 ppb, in 2015.

What handles it

No certification claim covers this compound yet.

Total trihalomethanes (TTHM)

Forms or is added in treatment

Above the legal limit

70.5ppb

Highest yearly average, 2020 to 2026

2026 average: 12.3 ppb

Averaged by year, the highest was 70.5 ppb, in 2024, below EPA’s legal limit of 80 ppb. Its highest single sample was 125 ppb. In 2026, the latest year on file, its six samples averaged 12.3 ppb. EPA judges this limit at each sampling point, and recorded a violation for total trihalomethanes (TTHM) at this utility in 2023. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 82.8 ppb, in 2015, and EPA recorded violations in 2015 and 2016.

What handles it

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

Below EPA’s limits1

Nitrate

Comes from the source

Below EPA’s limits

1.6ppm

Highest sample; found in 7 of 7

2026, one sample: 1.6 ppm

The highest sample, in 2026, was 1.6 ppm, below EPA’s legal limit of 10 ppm. That was also the latest year on file, and its one sample was 1.6 ppm.

What handles it

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

What handles it

A certification covers specific claims, not a whole standard. Look for these claims on the certifier’s listing, not the box. Wording varies a little: NSF writes “Lead Reduction,” WQA just “Lead.”

  • NSF/ANSI 53

    Claim: Trihalomethanes (TTHM) Reduction

    For: Total trihalomethanes (TTHM)

    Other certifiers’ wording: VOC Reduction

  • NSF/ANSI 58

    Claim: Trihalomethanes (TTHM) Reduction

    For: Total trihalomethanes (TTHM)

At the tap, or for the whole house?

These come with the water itself, so a whole-house system certified for the same claims treats every tap and shower. A filter at the tap treats drinking water for much less. How whole-house systems compare.

Filters with those claims on a certifier’s listing

Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money

Compare five-year costs

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
Total Haloacetic Acids (HAA5)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJan. 1, 2025 to March 31, 20250.072 MG/LResolved
Lead and Copper Rule RevisionsThe required inventory of lead service lines was not completed or submitted on time.EPA: LSL InventoryOct. 17, 2024—Unaddressed
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJan. 1, 2023 to March 31, 20230.082 MG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageApril 1, 2016 to June 30, 20160.094 MG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJan. 1, 2016 to March 31, 20160.091 MG/LResolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 10 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Haloacetic acids (HAA5), total trihalomethanes (TTHM) and nitrate results here are Texas’s own from 2020 on, with EPA’s national file for 2012 to 2019. Rehobeth WSC’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 March 11, 2020 to July 14, 2026.

Testing your own tap

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

  • Southern Petroleum Laboratories (SPL), Inc. (FKA Ana-Lab Corporation)

    Kilgore, TX · about 39 miles

    Certified for bacteria, lead and copper

    (903) 984-0551

  • Eastex Environmental Lab, Inc.-Nacogdoches

    Nacogdoches, TX · about 42 miles

    Certified for bacteria

    (936) 569-8879

  • Environmental Monitoring Lab

    Winona, TX · about 54 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 TX1830012. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Also in Panola County

All Texas utilities

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