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Clc Owners Corporation

What EPA’s and CDC’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
736 people
Connections
189
Water source
Groundwater
Based in
Brookfield, CT
County
Litchfield
Owner
Private
The 2 ZIP codes it serves

06776, 06804

The short answer

1 result is above the health goal. The worst: Uranium, above the health goal. No health-based violations on file since 2016.

What handles it

What was found

Uranium, nitrate, arsenic and total trihalomethanes (TTHM): Connecticut’s yearly averages per water system, as CDC’s Environmental Public Health Tracking Network publishes them, 2020 to 2023, with EPA’s 2012 to 2019 file for earlier years.

Fluoride and chromium (total): EPA’s compliance monitoring file, samples taken from Oct. 26, 2012 to April 17, 2018. Newer results are in the utility’s annual water quality report.

Above the health goal1

Uranium

Comes from the source

Above the health goal

9.7ppb

Highest yearly average, 2022

Averaged by year, the highest was 9.7 ppb, in 2022: below EPA’s legal limit of 30 ppb, but above its health goal of zero. That is the only year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 10.2 ppb, in 2013.

What handles it

Below EPA’s limits2

Nitrate

Comes from the source

Below EPA’s limits

1.6ppm

Highest yearly average, 2020 to 2023

Averaged by year, the highest was 1.6 ppm, in 2023, below EPA’s legal limit of 10 ppm. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 2.2 ppm, in 2019.

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

0.34ppm

Highest yearly average, 2012 to 2018

2018: not found

Averaged by year, the highest was 0.34 ppm, in 2013, below EPA’s legal limit of 4.0 ppm. In 2018, the latest year on file, it wasn’t found in any of its five samples.

What handles it

4 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Arsenic
  • Chromium (total)
  • Lead
  • Total trihalomethanes (TTHM)

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.”

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

None of the filters TapBuff has checked so far carry these claims. Search the certifier listings for the claim above.

Compare five-year costs

Violations since 2016

No health-based violations on file with EPA since 2016. There are 8 monitoring or reporting violations: a sample missed, late or not reported.

What this report can’t tell you

  • Everything else. Uranium, nitrate, arsenic and total trihalomethanes (TTHM) results here are Connecticut’s yearly averages as CDC publishes them, from 2020 on, with EPA’s national file for 2012 to 2019. Fluoride and chromium (total) come from EPA’s file alone, which ends in 2019. Clc Owners Corporation’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; CDC’s yearly averages for Connecticut cover 2020 to 2023; EPA’s compliance samples are from Oct. 26, 2012 to April 17, 2018.

Testing your own tap

Clc Owners Corporation’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 Connecticut certifies.

The 3 labs Connecticut certifies closest to the area Clc Owners Corporation serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • ALS Environmental - Newtown

    Newtown, CT · about 11 miles

    Certified for bacteria, nitrate, metals, minerals and other inorganics, organic chemicals, radioactivity

    (203) 270-9973

  • Aquarion Water Trap Falls Water Quality Lab

    Shelton, CT · about 21 miles

    Certified for bacteria

    (203) 445-7362

  • Northwest Environmental Water Labs

    Waterbury, CT · about 22 miles

    Certified for bacteria, nitrate, metals, minerals and other inorganics

    (203) 437-4110

All 86 certified labs for Connecticut

Sources

PWSID CT0960071. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Also in Litchfield County

All Connecticut utilities

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