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Is El Granada, CA tap water safe?

2 utilities serve El Granada, by EPA’s records. Here is what EPA’s and California’s records show for each, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

Neither of the 2 utilities serving El Granada has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records.

Coastside County Water District, which serves the most people here, has 2 results above the health goal. The worst: Lead at 1.6 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.

The water from Coastside County Water District is soft to very hard depending on the source, 32 to 197 mg/L (1.9 to 11.5 grains per gallon). How California’s water compares.

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 El Granada’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 Coastside County Water District’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 El Granada

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

  • San Mateo County Public Health Laboratory

    San Mateo, CA · about 7 miles

    Certified for bacteria

    (650) 573-2500

  • Garratt-Callahan Laboratory

    Burlingame, CA · about 9 miles

    Certified for nitrate, metals, minerals and other inorganics

    (650) 697-5811

  • Eurofins Built Environment Testing West-Burlingame

    Burlingame, CA · about 9 miles

    Certified for bacteria

    (623) 298-1015

All 145 certified labs for California

ZIP codes in El Granada

Which ZIP codes are in El Granada: 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 El Granada

Other towns in San Mateo County with a page of their own.

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