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Valley View Park MWC

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
499 people
Connections
218
Water source
Surface water bought from another system
Based in
Crestline, CA
County
San Bernardino
Owner
Private
The ZIP code it serves

92325

The short answer

2 results are above the health goal. The worst: Nitrate, above the health goal. 1 health-based violation since 2016.

What handles it

What was found

Copper: EPA’s file records a utility’s copper only when it exceeds the action level. The last here was 1.4 ppm, for the period ending Dec. 31, 1996. None since is on file, so it is not counted as a current finding.

Nitrate, uranium, total trihalomethanes (TTHM), haloacetic acids (HAA5), fluoride, arsenic and chromium (total): California’s own results, samples taken from Jan. 6, 2020 to Feb. 9, 2026, with EPA’s 2012 to 2019 file for earlier years.

Above the health goal2

Nitrate

Comes from the source

Above the health goal

12ppm

Highest sample; found in 315 of 317

2024 average: 5.0 ppm

One sample, in 2024, was above EPA’s legal limit of 10 ppm, at 12 ppm. No follow-up sample at that point within 30 days is on file. 10 ppm is also EPA’s health goal. That was also the latest year on file, and its 62 samples averaged 5.0 ppm. EPA recorded no violation for nitrate at this utility since 2020. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 16.7 ppm, in 2012.

What handles it

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

Uranium

Comes from the source

Above the health goal

13.4ppb

Highest yearly average, 2023

Averaged by year, the highest was 13.4 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.

What handles it

Below EPA’s limits3

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

35.9ppb

Highest yearly average, 2021 to 2026

2026, one sample: 23.9 ppb

Averaged by year, the highest was 35.9 ppb, in 2024, below EPA’s legal limit of 80 ppb. Its highest single sample was 50.2 ppb. In 2026, the latest year on file, its one sample was 23.9 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 14.5 ppb, in 2017.

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

4.0ppb

Highest yearly average, 2021 to 2026

2026: not found

Averaged by year, the highest was 4.0 ppb, in 2024, below EPA’s legal limit of 60 ppb. Its highest single sample was 5.1 ppb. In 2026, the latest year on file, it wasn’t found in its one sample.

What handles it

No certification claim covers this compound yet.

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.13ppm

Highest yearly average, 2020 to 2023

Averaged by year, the highest was 0.13 ppm, in 2023, below EPA’s legal limit of 4.0 ppm. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.04 ppm, in 2014.

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

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.”

  • NSF/ANSI 53

    Claim: Nitrate/Nitrite (30 ppm challenge)

    For: Nitrate

  • NSF/ANSI 58

    Claims: Nitrate/Nitrite Reduction, Uranium

    For: Nitrate, Uranium

    Other certifiers’ wording: Nitrate

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

Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money

Compare five-year costs

The best reverse osmosis systems, ranked

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. 6 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Nitrate, uranium, total trihalomethanes (TTHM), haloacetic acids (HAA5), fluoride, arsenic and chromium (total) results here are California’s own from 2020 on, with EPA’s national file for 2012 to 2019. Valley View Park MWC’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 Jan. 6, 2020 to Feb. 9, 2026.

Testing your own tap

Valley View Park MWC’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 Valley View Park MWC serves, 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 13 miles

    Certified for bacteria

    (559) 497-2888

  • Geo-Monitor, Inc

    Hesperia, CA · about 14 miles

    Certified for bacteria

    (760) 244-3481

  • Clinical Laboratory of San Bernardino, Inc.

    Grand Terrace, CA · about 15 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

Sources

PWSID CA3610046. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Also in San Bernardino County

All California utilities

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