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Is Mason Neck, VA tap water safe?

Fairfax County Water Authority serves Mason Neck, 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

Fairfax County Water Authority serves Mason Neck. In EPA’s and CDC’s records it has 2 results above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal, and no health-based violation since 2016.

The worst: PFOA at 7.4 ppt, above EPA’s new limit, which takes effect in 2029.

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 Fairfax County Water Authority’s water.

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Every claim, and more filters, in the full report

Water testing near Mason Neck

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 Virginia certifies.

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

  • H2O Quality Laboratory a Division of Prince William Water

    Woodbridge, VA · about 5 miles

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

    (703) 335-7976

  • Water Testing Labs of Virginia

    Burke, VA · about 9 miles

    Certified for bacteria

    (703) 250-7711

  • Fairfax County Health Department Joanne Jorgenson Laboratory

    Fairfax, VA · about 13 miles

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

    (703) 277-3253

Virginia Household Water Quality Program, Virginia Cooperative Extension: Drinking water clinics in about 70 counties a year, run through local Extension offices: pick up a kit, collect the sample on the set day, and drop it off locally. Each kit tests well, spring or cistern water for 28 things, including bacteria, nitrate, lead and arsenic. $70 a kit, with funding to help if you need it. Virginia Household Water Quality Program.

All 145 certified labs for Virginia

ZIP codes in Mason Neck

Which ZIP codes are in Mason Neck: 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: DCLS, drinking water laboratories with certification detail; distances from the Census 2020 ZIP code tabulation area gazetteer.

Near Mason Neck

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

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