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Is Charlestown, NH tap water safe?

4 utilities serve Charlestown, 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

2 of the 4 utilities serving Charlestown have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Charlestown Water Works and Connecticut River MHP.

Charlestown Water Works, which serves the most people here, has 1 result above the action level and 2 results above the health goal. The worst: Lead at 19 ppb, above the action level.

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 Charlestown’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 Charlestown Water Works’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 Charlestown

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

  • Nelson Analytical Lab - Keene Division

    Swanzey, NH · about 20 miles

    Certified for bacteria

    (603) 357-2577

  • Keene City Laboratory

    Swanzey, NH · about 27 miles

    Certified for bacteria

    (603) 357-9836

  • Endyne Inc.

    Lebanon, NH · about 28 miles

    Certified for bacteria, nitrate

    (603) 678-4891

All 63 certified labs for New Hampshire

ZIP codes in Charlestown

Which ZIP codes are in Charlestown: 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 Charlestown

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

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