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Casa de Fruta Water System

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
250 people
Connections
37
Water source
Groundwater
Based in
Hollister, CA
County
Santa Clara
Owner
Private
Hardness
Very hard
The ZIP code it serves

95023

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. 1 health-based violation since 2016.

What was found

Nitrate, haloacetic acids (HAA5), total trihalomethanes (TTHM), fluoride, arsenic and chromium (total): California’s own results, samples taken from Feb. 27, 2020 to May 21, 2026, with EPA’s 2012 to 2019 file for earlier years.

Below EPA’s limits4

Nitrate

Comes from the source

Below EPA’s limits

4.2ppm

Highest sample; found in 12 of 13

2026, one sample: 1.2 ppm

The highest sample, in 2024, was 4.2 ppm, below EPA’s legal limit of 10 ppm. In 2026, the latest year on file, its one sample was 1.2 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 4.0 ppm, in 2017.

What handles it

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

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

6.0ppb

Highest yearly average, 2020 to 2023

2023, one sample: 2.4 ppb

Averaged by year, the highest was 6.0 ppb, in 2020, below EPA’s legal limit of 60 ppb. In 2023, the latest year on file, its one sample was 2.4 ppb.

What handles it

No certification claim covers this compound yet.

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

7.0ppb

Highest yearly average, 2020 to 2023

Averaged by year, the highest was 7.0 ppb, in 2023, below EPA’s legal limit of 80 ppb. Its highest single sample was 17 ppb. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.62 ppb, in 2017.

What handles it

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

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.31ppm

Highest yearly average, 2021 to 2026

2026, one sample: 0.27 ppm

Averaged by year, the highest was 0.31 ppm, in 2021, below EPA’s legal limit of 4.0 ppm. In 2026, the latest year on file, its one sample was 0.27 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.34 ppm, in 2012.

What handles it

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

Hardness

Very hard, typically 250 mg/L (14.6 grains per gallon), across 2 sampling points, 2019 to 2026.

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 14.6 grains per gallon, salt includedSoftener or salt-free conditioner?California water hardness, utility by utility

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
Lead and Copper Rule RevisionsThe required inventory of lead service lines was not completed or submitted on time.EPA: LSL InventoryOct. 17, 2024—Unaddressed
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 1 monitoring or reporting violation not shown.

What this report can’t tell you

  • Everything else. Nitrate, haloacetic acids (HAA5), total trihalomethanes (TTHM), fluoride, arsenic and chromium (total) results here are California’s own from 2020 on, with EPA’s national file for 2012 to 2019. Casa de Fruta Water System’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 Feb. 27, 2020 to May 21, 2026.

Testing your own tap

Casa de Fruta Water System’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 Casa de Fruta Water System serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • CM Analytical, Inc.

    Gilroy, CA · about 13 miles

    Certified for bacteria

    (408) 848-3619

  • Monterey County Consolidated Environmental Laboratory

    Salinas, CA · about 21 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics

    (831) 755-4516

  • Bracewell Engineering, Inc.

    Morgan Hill, CA · about 22 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (669) 258-5821

All 145 certified labs for California

Sources

PWSID CA4300611. Rebuilt from EPA data on Oct. 18, 2026.

Also in Santa Clara County

All California utilities

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