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Is Dedham, MA tap water safe?

Dedham Westwood Water Dist. serves Dedham, by EPA’s records. Here is what EPA’s and Massachusetts’s records show for it, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

Dedham Westwood Water Dist. serves Dedham. In EPA’s and Massachusetts’s records it has 1 result above the legal limit, 2 results above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal, and 1 health-based violation since 2016.

The worst: Total trihalomethanes (TTHM) at 65.3 ppb, above the legal limit.

The water from Dedham Westwood Water Dist. is moderately hard to hard depending on the source, 91 to 161 mg/L (5.3 to 9.4 grains per gallon). How Massachusetts’s water compares.

Some homes in a town are on private wells or a small system of their own. The name on your water bill tells you which is yours.

What handles it

Each of these is certified, on a certifier’s listing, for a result above a line in Dedham Westwood Water Dist.’s water.

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Every claim, and more filters, in the full report

Water testing near Dedham

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 Dedham, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • White Lodge Laboratory

    Westwood, MA · about 3 miles

    Certified for bacteria

    (781) 710-6498

  • Mass DPH Environmental Chemistry Lab

    Jamaica Plain, MA · about 5 miles

    Certified for lead and copper, metals

    (617) 983-6654

  • Matrix Sciences International Inc.

    Canton, MA · about 6 miles

    Certified for bacteria

    (781) 401-9999

All 81 certified labs for Massachusetts

ZIP codes in Dedham

Which ZIP codes are in Dedham: 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 Dedham

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

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