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Is Downey, CA tap water safe?

Downey - City, Water Dept. serves Downey, by EPA’s records. Here is what EPA’s and California’s records show for it, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

Downey - City, Water Dept. serves Downey. In EPA’s and California’s records it has 2 results above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal, and 1 health-based violation since 2016.

The worst: PFOS at 44 ppt, above EPA’s new limit, which takes effect in 2029.

The water from Downey - City, Water Dept. is hard to very hard depending on the source, 135 to 368 mg/L (7.9 to 21.5 grains per gallon). How California’s water compares.

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 Downey - City, Water Dept.’s water.

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Every claim, and more filters, in the full report

Water testing near Downey

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 California certifies.

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

  • Los Angeles County Public Health Laboratory

    Downey, CA · about 2 miles

    Certified for bacteria

    (562) 658-1300

  • Michelson Laboratories, Inc.

    Commerce, CA · about 2 miles

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

    (562) 928-0553

  • SGS Forensic Laboratories

    Carson, CA · about 8 miles

    Certified for metals

    (310) 763-2374

All 145 certified labs for California

ZIP codes in Downey

Which ZIP codes are in Downey: 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: California State Water Resources Control Board, ELAP accredited laboratories and their fields of accreditation; distances from the Census 2020 ZIP code tabulation area gazetteer.

Near Downey

Other towns in Los Angeles County with a page of their own.

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