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Is Somersworth, NH tap water safe?

Somersworth Water Works serves Somersworth, by EPA’s records. Here is what EPA’s and CDC’s records show for it, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

Somersworth Water Works serves Somersworth. In EPA’s and CDC’s records it has 1 result above the health goal, and no health-based violation since 2016.

The worst: Arsenic at 1.2 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.

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 Somersworth Water Works’s water.

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Every claim, and more filters, in the full report

Water testing near Somersworth

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 New Hampshire certifies.

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

  • Seacoast Analytical Services LLC

    Lee, NH · about 10 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics

    (603) 868-1457

  • Eurofins Portsmouth

    Portsmouth, NH · about 13 miles

    Certified for bacteria

    (603) 436-2001

  • Nelson Analytical LLC - Maine Division

    Kennebunk, ME · about 19 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics

    (207) 467-3478

All 63 certified labs for New Hampshire

ZIP codes in Somersworth

Which ZIP codes are in Somersworth: 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: New Hampshire ELAP, drinking water labs, as listed in TNI LAMS; distances from the Census 2020 ZIP code tabulation area gazetteer.

Near Somersworth

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

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