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Placer CWA - Bianchi Estates

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
110 people
Connections
39
Water source
Surface water bought from another system
Based in
Auburn, CA
County
Placer
Owner
Local government
The ZIP code it serves

95747

The short answer

Nothing in EPA’s and California’s records for this utility is above a health goal. That covers nitrate, arsenic and other regulated chemicals, plus lead and copper, not everything. No health-based violations on file since 2016.

What was found

Total trihalomethanes (TTHM) and haloacetic acids (HAA5): California’s own results, samples taken from May 12, 2021 to May 6, 2026.

Below EPA’s limits2

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

60.9ppb

Highest yearly average, 2021 to 2026

2026 average: 42.5 ppb

Averaged by year, the highest was 60.9 ppb, in 2021, below EPA’s legal limit of 80 ppb. Its highest single sample was 108 ppb. In 2026, the latest year on file, its two samples averaged 42.5 ppb. EPA recorded no violation for total trihalomethanes (TTHM) at this utility since 2020.

What handles it

  • NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
  • NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

30.8ppb

Highest yearly average, 2021 to 2026

2026 average: 26.5 ppb

Averaged by year, the highest was 30.8 ppb, in 2021, below EPA’s legal limit of 60 ppb. Its highest single sample was 57.2 ppb. In 2026, the latest year on file, its two samples averaged 26.5 ppb.

What handles it

No certification claim covers this compound yet.

One compound tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Lead

Violations since 2016

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

What this report can’t tell you

  • Everything else. Total trihalomethanes (TTHM) and haloacetic acids (HAA5) results here are California’s own from 2021 on, with EPA’s national file for 2012 to 2019. Placer CWA - Bianchi Estates’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 May 12, 2021 to May 6, 2026.

Testing your own tap

Placer CWA - Bianchi Estates’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 Placer CWA - Bianchi Estates serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • BSK Associates - Sacramento Analytical Laboratory

    Sacramento, CA · about 14 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (559) 497-2888

  • Bend Genetics LLC

    Sacramento, CA · about 15 miles

    (916) 550-1048

  • California Laboratory Services

    Rancho Cordova, CA · about 15 miles

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

    (916) 638-7301

All 145 certified labs for California

Sources

PWSID CA3110040. Rebuilt from EPA data on Oct. 18, 2026.

Also in Placer County

All California utilities

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