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Is Alton, NH tap water safe?

4 utilities serve Alton, 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 Alton have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Alton Water Works and Merrymeeting MHP.

Alton Water Works, which serves the most people here, has 1 result above the legal limit, 2 results above the action level and 1 result above the health goal. The worst: Lead at 210 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 Alton’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 Alton 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 Alton

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

  • Laconia Water Works Laboratory

    Lakeport, NH · about 16 miles

    Certified for bacteria

    (603) 524-1096

  • Eurofins Concord

    Concord, NH · about 24 miles

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

    (603) 228-0525

  • New Hampshire DHHS Public Health Laboratories

    Concord, NH · about 24 miles

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

    (603) 271-3445

All 63 certified labs for New Hampshire

ZIP codes in Alton

Which ZIP codes are in Alton: 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 Alton

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

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