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Is Oak Glen, CA tap water safe?

3 utilities serve Oak Glen, 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

1 of the 3 utilities serving Oak Glen has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records: Yucaipa Valley Water District.

Yucaipa Valley Water District, which serves the most people here, has 2 results above the legal limit, 1 result above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: Nitrate at 12 ppm, above the legal limit.

The water from Yucaipa Valley Water District is moderately hard to very hard depending on the source, 95 to 310 mg/L (5.6 to 18.1 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 Oak Glen’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 Yucaipa Valley 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 Oak Glen

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

  • BSK Associates - San Bernardino Analytical Laboratory

    San Bernardino, CA · about 15 miles

    Certified for bacteria

    (559) 497-2888

  • Babcock Laboratories, Inc.

    Riverside, CA · about 17 miles

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

    (951) 653-3351

  • Clinical Laboratory of San Bernardino, Inc.

    Grand Terrace, CA · about 18 miles

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

    (909) 825-7693

All 145 certified labs for California

ZIP codes in Oak Glen

Which ZIP codes are in Oak Glen: 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 Oak Glen

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

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