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Bleich Flats Mutual

What EPA’s and California’s records show in this utility’s water: nitrate, arsenic and other regulated chemicals; lead and copper; and violations since 2016, with the certification that handles each result.

Serves
36 people
Connections
34
Water source
Groundwater
Based in
Lancaster, CA
County
Los Angeles
Owner
Private
Hardness
Very hard
The ZIP code it serves

93536

The short answer

1 result is above the health goal. The worst: Uranium, above the health goal. No health-based violations on file since 2016.

What handles it

What was found

Uranium, nitrate, fluoride, chromium (total), arsenic and total trihalomethanes (TTHM): California’s own results, samples taken from Nov. 1, 2021 to Oct. 30, 2024, with EPA’s 2012 to 2019 file for earlier years.

Above the health goal1

Uranium

Comes from the source

Above the health goal

14.2ppb

Highest yearly average, 2023

Averaged by year, the highest was 14.2 ppb, in 2023: below EPA’s legal limit of 30 ppb, but above its health goal of zero. That is the only year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 18 ppb, in 2012.

What handles it

Below EPA’s limits3

Nitrate

Comes from the source

Below EPA’s limits

3.0ppm

Highest sample; found in 4 of 4

2024, one sample: 1.7 ppm

The highest sample, in 2022, was 3.0 ppm, below EPA’s legal limit of 10 ppm. In 2024, the latest year on file, its one sample was 1.7 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 1.4 ppm, in 2018.

What handles it

  • NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
  • NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.7ppm

Highest yearly average, 2023

Averaged by year, the highest was 0.7 ppm, in 2023, below EPA’s legal limit of 4.0 ppm. That is the only year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.8 ppm, in 2018.

What handles it

Chromium (total)

Comes from the source

Below EPA’s limits

13ppb

Highest yearly average, 2023

Averaged by year, the highest was 13 ppb, in 2023, below EPA’s legal limit of 100 ppb. That is the only year on file.

What handles it

3 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Arsenic
  • Lead
  • Total trihalomethanes (TTHM)

What handles it

A certification covers specific claims, not a whole standard. Look for these claims on the certifier’s listing, not the box. Wording varies a little: NSF writes “Lead Reduction,” WQA just “Lead.”

At the tap, or for the whole house?

These come with the water itself, so a whole-house system certified for the same claims treats every tap and shower. A filter at the tap treats drinking water for much less. How whole-house systems compare.

Filters with those claims on a certifier’s listing

None of the filters TapBuff has checked so far carry these claims. Search the certifier listings for the claim above.

Compare five-year costs

Hardness

Very hard, 266 mg/L (15.6 grains per gallon), at its one sampling point, in 2023.

Hardness is calcium and magnesium. EPA sets no limit for it: it shows up as scale on fixtures and in water heaters, and as soap that won’t lather. USGS calls water above 60 mg/L moderately hard, above 120 hard and above 180 very hard.

Softeners compared at 15.6 grains per gallon, salt includedSoftener or salt-free conditioner?California water hardness, utility by utility

Violations since 2016

No health-based violations on file with EPA since 2016.

What this report can’t tell you

  • Everything else. Uranium, nitrate, fluoride, chromium (total), arsenic and total trihalomethanes (TTHM) results here are California’s own from 2021 on, with EPA’s national file for 2012 to 2019. Bleich Flats Mutual’s own annual report, which it must send you every year, has the contaminants this page does not show.

  • Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.

  • What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.

  • Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 didn’t sample this utility; California’s results run from Nov. 1, 2021 to Oct. 30, 2024.

Testing your own tap

Bleich Flats Mutual’s results are for the water it sends out. What your own service line, solder and fixtures add shows up only in a test of your tap, by a lab California certifies.

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

  • Pat-Chem Laboratories

    San Fernando, CA · about 32 miles

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

    (800) 400-5227

  • EMSL Analytical, Inc. (LA Testing)

    South Pasadena, CA · about 45 miles

    Certified for bacteria, asbestos

    (323) 254-9960

  • Fruit Growers Laboratory, Inc.

    Santa Paula, CA · about 50 miles

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

    (805) 392-2000

All 145 certified labs for California

Sources

PWSID CA1900075. Rebuilt from EPA data on Oct. 18, 2026.

Also in Los Angeles County

All California utilities

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