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Ctwc - Northern Reg - Reservoir Heights

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
62 people
Connections
23
Water source
Surface water bought from another system
Based in
Vernon, CT
County
Tolland
Owner
Private
The ZIP code it serves

06066

The short answer

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

What handles it

What was found

Lead and copper: EPA SDWIS monitoring periods ending 2018 to 2025.

Total trihalomethanes (TTHM) and haloacetic acids (HAA5): 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.

Above the health goal1

Lead

Comes from pipes, often your own

Above the health goal

1.3ppb

90th percentile, 2025

In the latest period, 9 in 10 homes sampled were at or below 1.3 ppb, below EPA’s action level of 15 ppb. The action level drops to 10 ppb on Nov. 1, 2027. EPA’s health goal for lead is zero.

What handles it

Below EPA’s limits2

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

68.2ppb

Highest yearly average, 2020 to 2023

Averaged by year, the highest was 68.2 ppb, in 2023, 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 65.5 ppb, in 2017.

What handles it

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

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

17.8ppb

Highest yearly average, 2020 to 2023

2023 average: 14.8 ppb

Averaged by year, the highest was 17.8 ppb, in 2021, below EPA’s legal limit of 60 ppb. In 2023, the latest year on file, it averaged 14.8 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 10.7 ppb, in 2017.

What handles it

No certification claim covers this compound yet.

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?

Lead and copper usually come from pipes and fixtures inside or near your home. A whole-house system sits where water enters, so it cannot catch what your own plumbing adds after it. For those, the filter that counts is the one at the tap. 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

The best water filters for lead, ranked

Violations since 2016

No health-based violations on file with EPA since 2016.

What this report can’t tell you

  • Everything else. Total trihalomethanes (TTHM) and haloacetic acids (HAA5) results here are Connecticut’s yearly averages as CDC publishes them, from 2020 on, with EPA’s national file for 2012 to 2019. Ctwc - Northern Reg - Reservoir Heights’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; CDC’s yearly averages for Connecticut cover 2020 to 2023.

Testing your own tap

Ctwc - Northern Reg - Reservoir Heights’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 Ctwc - Northern Reg - Reservoir Heights serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Phoenix Environmental Laboratories, Inc.

    Manchester, CT · about 6 miles

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

    (860) 645-1102

  • Envirotech Laboratory

    Windsor, CT · about 11 miles

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

    (860) 688-7249

  • Pace Analytical Services, LLC - East Longmeadow

    East Longmeadow, MA · about 16 miles

    Certified for bacteria, nitrate, minerals and other inorganics, organic chemicals, PFAS

    (413) 525-2332

All 86 certified labs for Connecticut

Sources

PWSID CT1462011. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Also in Tolland County

All Connecticut utilities

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