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Is Londonderry, NH tap water safe?

15 utilities serve Londonderry, by EPA’s records. Here is what EPA’s and CDC’s records show for each, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

5 of the 15 utilities serving Londonderry have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Oakridge Condos, Ponderosa MHP, Rolling Meadows Condos I and 2 more.

Londonderry, which serves the most people here, has 1 result above EPA’s new limit, which takes effect in 2029. The worst: PFOA at 6.4 ppt, above EPA’s new limit, which takes effect in 2029.

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 Londonderry’s ZIP codes, from EPA’s estimates.

5 more utilities in Londonderry

By EPA’s estimate, each serves fewer people in Londonderry than those above.

What handles it

Each of these is certified, on a certifier’s listing, for a result above a line in Londonderry’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 Londonderry

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

  • Eurofins Derry

    Derry, NH · about 5 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS

    (603) 432-3044

  • Nelson Analytical LLC

    Manchester, NH · about 7 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts

    (603) 622-0200

  • Eurofins Concord

    Concord, NH · about 27 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts

    (603) 228-0525

All 63 certified labs for New Hampshire

ZIP codes in Londonderry

Which ZIP codes are in Londonderry: 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 Londonderry

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

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