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Dexter Village

What EPA’s and New York’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
1,100 people
Connections
300
Water source
Groundwater
Based in
Dexter (V), NY
County
Jefferson
Owner
Local government
The ZIP code it serves

13634

The short answer

3 results are above EPA’s legal limit, and 1 more is above the health goal. The worst: Copper, above the action level. 7 health-based violations since 2016.

What handles it

What was found

Lead and copper: EPA SDWIS monitoring periods ending 2018 to 2021.

Total trihalomethanes (TTHM), haloacetic acids (HAA5), nitrate and arsenic: New York’s yearly summaries per water system, 2020 to 2024, with EPA’s 2012 to 2019 file for earlier years.

Fluoride and chromium (total): EPA’s compliance monitoring file, samples taken from March 5, 2012 to Nov. 14, 2018. Newer results are in the utility’s annual water quality report.

Above the legal limit3

Copper

Comes from pipes, often your own

Above the action level

1.5ppm

90th percentile, 2019 to 2021

In the latest period, 9 in 10 homes sampled were at or below 1.5 ppm, above EPA’s action level of 1.3 ppm.

What handles it

Total trihalomethanes (TTHM)

Forms or is added in treatment

Above the legal limit

79.9ppb

Highest yearly average, 2020 to 2024

2024 average: 48 ppb

Averaged by year, the highest was 79.9 ppb, in 2020, below EPA’s legal limit of 80 ppb. Its highest single sample was 143 ppb. In 2024, the latest year on file, it averaged 48 ppb. EPA judges this limit at each sampling point, and recorded a violation for total trihalomethanes (TTHM) at this utility in 2020. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 91 ppb, in 2019, and EPA recorded violations in 2012, 2013 and 2019.

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

Above the legal limit

56ppb

Highest yearly average, 2020 to 2024

2024 average: 43.9 ppb

Averaged by year, the highest was 56 ppb, in 2021, below EPA’s legal limit of 60 ppb. Its highest single sample was 78.8 ppb. In 2024, the latest year on file, it averaged 43.9 ppb. EPA judges this limit at each sampling point, and recorded a violation for haloacetic acids (HAA5) at this utility in 2021. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 49.1 ppb, in 2019.

What handles it

No certification claim covers this compound yet.

Above the health goal1

Lead

Comes from pipes, often your own

Above the health goal

3.0ppb

90th percentile, 2022 to 2024

In the latest period, 9 in 10 homes sampled were at or below 3.0 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

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.2ppm

Highest yearly average, 2012 to 2018

2018: not found

Averaged by year, the highest was 0.2 ppm, in 2012, below EPA’s legal limit of 4.0 ppm. In 2018, the latest year on file, it wasn’t found in its one sample.

What handles it

Nitrate

Comes from the source

Below EPA’s limits

0.26ppm

Highest sample; found in 5 of 5

2024 average: 0.26 ppm

The highest sample, in 2021, was 0.26 ppm, below EPA’s legal limit of 10 ppm. In 2024, the latest year on file, it averaged 0.26 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 0.5 ppm, in 2019.

What handles it

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

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

    Claims: Copper Reduction, Trihalomethanes (TTHM) Reduction, Lead Reduction

    For: Copper, Total trihalomethanes (TTHM), Lead

    Other certifiers’ wording: VOC Reduction

  • NSF/ANSI 58

    Claims: Copper Reduction, Trihalomethanes (TTHM) Reduction, Lead Reduction

    For: Copper, Total trihalomethanes (TTHM), 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

Contaminant or ruleTypePeriodMeasuredStatus
Total Haloacetic Acids (HAA5)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJan. 1, 2021 to March 31, 202181.3 UG/LArchived
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageOct. 1, 2020 to Dec. 31, 202084.4 UG/LArchived
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJuly 1, 2020 to Sept. 30, 202083.9 UG/LArchived
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageApril 1, 2020 to June 30, 202096.6 UG/LArchived
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJan. 1, 2020 to March 31, 202092 UG/LArchived
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageOct. 1, 2019 to Dec. 31, 201992.8 UG/LArchived
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJuly 1, 2019 to Sept. 30, 201997.9 UG/LArchived
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record.

What this report can’t tell you

  • Everything else. Total trihalomethanes (TTHM), haloacetic acids (HAA5), nitrate and arsenic results here are New York’s own yearly summaries 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. Dexter Village’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; New York’s yearly summaries cover 2020 to 2024; EPA’s compliance samples are from March 5, 2012 to Nov. 14, 2018.

Testing your own tap

Dexter Village’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 New York certifies.

The 3 labs New York certifies closest to the area Dexter Village serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Converse Laboratories Inc.

    Watertown, NY · about 9 miles

    Certified for bacteria

    (315) 788-8388

  • Oswego Water Treatment Plant Lab

    Oswego, NY · about 44 miles

    Certified for bacteria

    (315) 342-8187

  • Certified Environmental Services Inc.

    North Syracuse, NY · about 61 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (315) 478-2374

All 161 certified labs for New York

Sources

PWSID NY2202337. Rebuilt from EPA data on Oct. 18, 2026.

Also in Jefferson County

All New York utilities

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