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Carriage House Condominium

What EPA’s and Massachusetts’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
68 people
Connections
1
Water source
Groundwater
Based in
Boxborough, MA
County
Middlesex
Owner
Private
The ZIP code it serves

01719

The short answer

Nothing in EPA’s and Massachusetts’s records for this utility is above a health goal. That covers nitrate, arsenic and other regulated chemicals, plus lead and copper, not everything. No health-based violations on file since 2016.

What was found

Nitrate, arsenic, chromium (total) and fluoride: Massachusetts’s own results, samples taken from April 7, 2020 to April 12, 2026, with EPA’s 2012 to 2019 file for earlier years.

Below EPA’s limits1

Nitrate

Comes from the source

Below EPA’s limits

3.7ppm

Highest sample; found in 7 of 7

2026, one sample: 2.5 ppm

The highest sample, in 2020, was 3.7 ppm, below EPA’s legal limit of 10 ppm. In 2026, the latest year on file, its one sample was 2.5 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 4.2 ppm, in 2018.

What handles it

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

Violations since 2016

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

What this report can’t tell you

  • Everything else. Nitrate, arsenic, chromium (total) and fluoride results here are Massachusetts’s own from 2020 on, with EPA’s national file for 2012 to 2019. Carriage House Condominium’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; Massachusetts’s results run from April 7, 2020 to April 12, 2026.

Testing your own tap

Carriage House Condominium’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 Massachusetts certifies.

The 3 labs Massachusetts certifies closest to the area Carriage House Condominium serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Eurofins Ayer

    Ayer, MA · about 6 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (978) 391-4428

  • Pace Analytical LLC-Westborough

    Westborough, MA · about 16 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (508) 898-9220

  • Eurofins-Worcester

    Worcester, MA · about 18 miles

    Certified for bacteria

    (401) 461-7181

All 81 certified labs for Massachusetts

Sources

PWSID MA2037009. Rebuilt from EPA data on Oct. 18, 2026.

Also in Middlesex County

All Massachusetts utilities

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