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Is Grand Terrace, CA tap water safe?

Riverside Highland Water Company serves Grand Terrace, 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

Riverside Highland Water Company serves Grand Terrace. In EPA’s and California’s records it has 2 results above EPA’s new limit, which takes effect in 2029 and 3 results above the health goal, and no health-based violation since 2016.

The worst: PFOS at 19 ppt, above EPA’s new limit, which takes effect in 2029.

The water from Riverside Highland Water Company is hard to very hard depending on the source, 160 to 280 mg/L (9.4 to 16.4 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 Riverside Highland Water Company’s water.

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Every claim, and more filters, in the full report

Water testing near Grand Terrace

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

  • Clinical Laboratory of San Bernardino, Inc.

    Grand Terrace, CA · about 1 mile

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

    (909) 825-7693

  • BSK Associates - San Bernardino Analytical Laboratory

    San Bernardino, CA · about 3 miles

    Certified for bacteria

    (559) 497-2888

  • Babcock Laboratories, Inc.

    Riverside, CA · about 6 miles

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

    (951) 653-3351

All 145 certified labs for California

ZIP codes in Grand Terrace

Which ZIP codes are in Grand Terrace: 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 Grand Terrace

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

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