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Glendale 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
1,458 people
Connections
486
Water source
Groundwater
Based in
Trinity, TX
County
Trinity
Owner
Local government
The ZIP code it serves

75862

The short answer

1 result is above EPA’s legal limit. The worst: Total trihalomethanes (TTHM), above the legal limit. 22 health-based violations since 2016.

What handles it

What was found

Copper: EPA’s file records a utility’s copper only when it exceeds the action level. The last here was 1.4 ppm, for the period ending June 30, 2017. None since is on file, so it is not counted as a current finding.

Total trihalomethanes (TTHM), haloacetic acids (HAA5), nitrate, fluoride, chromium (total), arsenic and uranium: Texas’s own results, samples taken from March 25, 2020 to Oct. 7, 2025, with EPA’s 2012 to 2019 file for earlier years.

Above the legal limit1

Total trihalomethanes (TTHM)

Forms or is added in treatment

Above the legal limit

69.3ppb

Highest yearly average, 2020 to 2025

2025 average: 28 ppb

Averaged by year, the highest was 69.3 ppb, in 2020, below EPA’s legal limit of 80 ppb. Its highest single sample was 115 ppb. In 2025, the latest year on file, its eight samples averaged 28 ppb. EPA judges this limit at each sampling point, and recorded violations for total trihalomethanes (TTHM) at this utility in 2020 and 2023. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 81.6 ppb, in 2014, and EPA recorded violations in 2014, 2015, 2016, 2017, 2018 and 2019.

What handles it

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

Below EPA’s limits4

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

17.1ppb

Highest yearly average, 2020 to 2025

2025 average: 9.2 ppb

Averaged by year, the highest was 17.1 ppb, in 2020, below EPA’s legal limit of 60 ppb. Its highest single sample was 39.1 ppb. In 2025, the latest year on file, its eight samples averaged 9.2 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 35.5 ppb, in 2014.

What handles it

No certification claim covers this compound yet.

Nitrate

Comes from the source

Below EPA’s limits

1.0ppm

Highest sample; found in 15 of 18

2025 average: 0.35 ppm

The highest sample, in 2025, was 1.0 ppm, below EPA’s legal limit of 10 ppm. That was also the latest year on file, and its three samples averaged 0.35 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 0.91 ppm, in 2016.

What handles it

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

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.24ppm

Highest yearly average, 2021 to 2025

2025, one sample: 0.22 ppm

Averaged by year, the highest was 0.24 ppm, in 2021, below EPA’s legal limit of 4.0 ppm. Its highest single sample was 0.42 ppm. In 2025, the latest year on file, its one sample was 0.22 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.38 ppm, in 2012.

What handles it

Chromium (total)

Comes from the source

Below EPA’s limits

0.7ppb

Highest yearly average, 2021 to 2025

2025: not found

Averaged by year, the highest was 0.7 ppb, in 2022, below EPA’s legal limit of 100 ppb. Its highest single sample was 1.4 ppb. In 2025, the latest year on file, it wasn’t found in any of its two samples. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 2.2 ppb, in 2012.

What handles it

3 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Arsenic
  • Lead
  • Uranium

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
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, AverageOct. 1, 2023 to Dec. 31, 20230.093 MG/LResolved
Groundwater RuleA significant problem found in a state inspection was not fixed on time.EPA: Failure To Address DeficiencyNov. 18, 2021—Resolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJuly 1, 2020 to Sept. 30, 20200.081 MG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageApril 1, 2020 to June 30, 20200.084 MG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageOct. 1, 2019 to Dec. 31, 20190.088 MG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJuly 1, 2019 to Sept. 30, 20190.085 MG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageApril 1, 2019 to June 30, 20190.082 MG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJan. 1, 2019 to March 31, 20190.093 MG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageOct. 1, 2018 to Dec. 31, 20180.086 MG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJuly 1, 2018 to Sept. 30, 20180.087 MG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageApril 1, 2018 to June 30, 20180.09 MG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJan. 1, 2018 to March 31, 20180.084 MG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageOct. 1, 2017 to Dec. 31, 20170.091 MG/LResolved
Lead and Copper RuleA required study or plan for corrosion control was not done on time.EPA: OCCT/SOWT Study/RecommendationOct. 1, 2017—Addressed
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJuly 1, 2017 to Sept. 30, 20170.085 MG/LResolved
Lead and Copper RuleA required study or plan for corrosion control was not done on time.EPA: OCCT/SOWT Study/RecommendationApril 1, 2017—Addressed
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageApril 1, 2017 to June 30, 20170.086 MG/LResolved
Lead and Copper RuleA required study or plan for corrosion control was not done on time.EPA: OCCT/SOWT Study/RecommendationMarch 31, 2017—Addressed
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJan. 1, 2017 to March 31, 20170.087 MG/LResolved
Lead and Copper RuleRequired information about lead was not given to customers.EPA: Public EducationDec. 1, 2016—Resolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageOct. 1, 2016 to Dec. 31, 20160.081 MG/LResolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 246 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Total trihalomethanes (TTHM), haloacetic acids (HAA5), nitrate, fluoride, chromium (total), arsenic and uranium results here are Texas’s own from 2020 on, with EPA’s national file for 2012 to 2019. Glendale 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 25, 2020 to Oct. 7, 2025.

Testing your own tap

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

  • Chaparral Laboratories, Inc.

    Huntsville, TX · about 17 miles

    Certified for bacteria, lead and copper

    (936) 291-1881

  • Eastex Environmental Lab, Inc. -Coldspring

    Coldspring, TX · about 25 miles

    Certified for bacteria, lead and copper

    (936) 653-3249

  • Nova Biologicals, Inc.

    Conroe, TX · about 46 miles

    Certified for bacteria

    (936) 756-5333

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 TX2280012. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Also in Trinity County

All Texas utilities

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