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Danbury Water Dept - Ridgeview Gardens

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
116 people
Connections
32
Water source
Groundwater
Based in
Danbury, CT
County
Fairfield
Owner
Local government
The ZIP code it serves

06811

The short answer

2 results are above the health goal. The worst: Arsenic, above the health goal. No health-based violations on file since 2016.

What handles it

What was found

Arsenic, uranium, nitrate, 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.

Fluoride and chromium (total): EPA’s compliance monitoring file, samples taken from April 16, 2013 to May 16, 2019. Newer results are in the utility’s annual water quality report.

Above the health goal2

Arsenic

Comes from the source

Above the health goal

4.0ppb

Highest yearly average, 2021 to 2023

2023: not found

Averaged by year, the highest was 4.0 ppb, in 2022: below EPA’s legal limit of 10 ppb, but above its health goal of zero. In 2023, the latest year on file, it wasn’t found.

What handles it

  • NSF/ANSI 58 look for “Arsenic (Pentavalent)<=50 ppb Reduction”
  • NSF/ANSI 53 look for “Arsenic (Pentavalent)<=50 ppb Reduction”

Uranium

Comes from the source

Above the health goal

1.3ppb

Highest yearly average, 2020

Averaged by year, the highest was 1.3 ppb, in 2020: 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 1.3 ppb, in 2013.

What handles it

Below EPA’s limits4

Nitrate

Comes from the source

Below EPA’s limits

6.2ppm

Highest yearly average, 2020 to 2023

2023 average: 4.9 ppm

Averaged by year, the highest was 6.2 ppm, in 2021, below EPA’s legal limit of 10 ppm. In 2023, the latest year on file, it averaged 4.9 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 7.4 ppm, in 2016.

What handles it

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

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

30.4ppb

Highest yearly average, 2020 to 2023

2023 average: 5.4 ppb

Averaged by year, the highest was 30.4 ppb, in 2021, below EPA’s legal limit of 80 ppb. In 2023, the latest year on file, it averaged 5.4 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 7.0 ppb, in 2018.

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

4.8ppb

Highest yearly average, 2020 to 2023

2023 average: 1.1 ppb

Averaged by year, the highest was 4.8 ppb, in 2021, below EPA’s legal limit of 60 ppb. In 2023, the latest year on file, it averaged 1.1 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 4.2 ppb, in 2015.

What handles it

No certification claim covers this compound yet.

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.21ppm

Highest yearly average, 2013 to 2019

2019, one sample: 0.07 ppm

Averaged by year, the highest was 0.21 ppm, in 2014, below EPA’s legal limit of 4.0 ppm. In 2019, the latest year on file, its one sample was 0.07 ppm.

What handles it

2 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Chromium (total)
  • 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: Arsenic (Pentavalent)<=50 ppb Reduction

    For: Arsenic

    Other certifiers’ wording: Arsenic (III) (50 ppb influent level)

  • NSF/ANSI 58

    Claims: Arsenic (Pentavalent)<=50 ppb Reduction, Uranium

    For: Arsenic, Uranium

    Other certifiers’ wording: Arsenic (Pentavalent)<=300 ppb Reduction; Arsenic (V) (300 ppb influent level)

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

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Violations since 2016

No health-based violations on file with EPA since 2016. There are 47 monitoring or reporting violations: a sample missed, late or not reported.

What this report can’t tell you

  • Everything else. Arsenic, uranium, nitrate, 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. Fluoride and chromium (total) come from EPA’s file alone, which ends in 2019. Danbury Water Dept - Ridgeview Gardens’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 April 16, 2013 to May 16, 2019.

Testing your own tap

Danbury Water Dept - Ridgeview Gardens’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 Danbury Water Dept - Ridgeview Gardens 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 9 miles

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

    (203) 270-9973

  • South Norwalk Electric & Water Laboratory

    Wilton, CT · about 15 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (203) 866-3366 ext. 259

  • Aquarion Water Trap Falls Water Quality Lab

    Shelton, CT · about 19 miles

    Certified for bacteria

    (203) 445-7362

All 86 certified labs for Connecticut

Sources

PWSID CT0340051. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Also in Fairfield County

All Connecticut utilities

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