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Is Exeter, NH tap water safe?

9 utilities serve Exeter, 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

7 of the 9 utilities serving Exeter have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Exeter Water Dept, Rockingham County Complex, River Run and 4 more.

Exeter Water Dept, which serves the most people here, has 1 result above the legal limit, 1 result above EPA’s new limit, which takes effect in 2029 and 3 results above the health goal. The worst: Total trihalomethanes (TTHM) at 56.4 ppb, above the legal limit.

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 Exeter’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 Exeter Water Dept’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 Exeter

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 Exeter, 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 11 miles

    Certified for bacteria

    (603) 436-2001

  • Eurofins Derry

    Derry, NH · about 17 miles

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

    (603) 432-3044

All 63 certified labs for New Hampshire

ZIP codes in Exeter

Which ZIP codes are in Exeter: 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 Exeter

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

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