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Is Hopkinton, MA tap water safe?

6 utilities serve Hopkinton, by EPA’s records. Here is what EPA’s and Massachusetts’s records show for each, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

1 of the 6 utilities serving Hopkinton has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Massachusetts’s records: The Preserve at Hopkinton Condo.

Hopkinton Water Department, which serves the most people here, has 1 result above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOA at 7.2 ppt, above EPA’s new limit, which takes effect in 2029.

The water from Hopkinton Water Department is soft to moderately hard depending on the source, 36 to 95 mg/L (2.1 to 5.6 grains per gallon). How Massachusetts’s water compares.

A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Hopkinton’s ZIP codes, from EPA’s estimates.

What handles it

Each of these is certified, on a certifier’s listing, for a result above a line in Hopkinton Water Department’s water, which serves the most people here. Another utility’s report names what handles its own results.

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Every claim, and more filters, in the full report

Water testing near Hopkinton

A utility tests the water it sends out. A test of your own tap shows what your pipes add, and on a private well it is the only test there is. It takes a lab Massachusetts certifies.

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

  • Proverde Environmental, Inc.

    Milford, MA · about 5 miles

    Certified for PFAS

    (617) 221-3356

  • Pace Analytical LLC-Westborough

    Westborough, MA · about 5 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (508) 898-9220

  • Eurofins-Worcester

    Worcester, MA · about 14 miles

    Certified for bacteria

    (401) 461-7181

All 81 certified labs for Massachusetts

ZIP codes in Hopkinton

Which ZIP codes are in Hopkinton: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: MassDEP Online Searchable Laboratory Certification Listing, potable water; distances from the Census 2020 ZIP code tabulation area gazetteer.

Near Hopkinton

Other towns in Middlesex County with a page of their own.

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