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California Water Service Co.-Lancaster

Drinking water quality, contact, and Consumer Confidence Report

Serving 0 cities in CA ยท PWSID CA1910010

California Water Service Co.-Lancaster serves 1,430 people. No water-quality test results are on file for California Water Service Co.-Lancaster. That is a gap in the EPA record we publish, not a finding about the water. Check California Water Service Co.-Lancaster's latest Consumer Confidence Report for its current test results.

No data
No test results on file
People served
1,430
Health-based violations since 2020
0

Data sources: EPA SDWIS, California Water Service Co.-Lancaster's published Consumer Confidence Report, and compliance monitoring reported to EPA by CA State Water Resources Control Board, Div. of Drinking Water.

This page summarizes publicly available EPA and CCR records. For health decisions about your water, consult your utility or a licensed professional.

1K
People Served
0
Cities
0
Water Sources
0
Health-based violations since 2020

Official California Water Service Co.-Lancaster Resources

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California Water Service Co.-Lancaster Service Area

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Service Area

This map shows the approximate service area for California Water Service Co.-Lancaster. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.

California Water Service Co.-Lancaster Water Quality Grade

Not graded

No water-quality test results are on file for California Water Service Co.-Lancaster. That is a gap in the EPA record we publish, not a finding about the water. Check California Water Service Co.-Lancaster's latest Consumer Confidence Report for its current test results.

Is California Water Service Co.-Lancaster Water Safe to Drink?

No water-quality test results are on file for California Water Service Co.-Lancaster. That is a gap in the EPA record we publish, not a finding about the water. Check California Water Service Co.-Lancaster's latest Consumer Confidence Report for its current test results.

Partial data: State Water Board lab results show 1 of the 2 active sources California Water Service Co.-Lancaster sampled above California's hexavalent chromium limit of 10 ยตg/L (state MCL, in effect since October 1, 2024). The highest average is 10.6 ยตg/L at WELL 01-01 (7 samples since October 1, 2024, latest June 30, 2026). California Water Service Co.-Lancaster's treated or delivered water was not sampled, and its other sources average within it, so these results do not show the water it serves above the limit, and they are not counted toward its verdict. Source: State Water Resources Control Board lab results (updated 2026-09-15).

This utility serves 1,430 people across 0 cities in CA. Water quality can vary by location within the service area. Check individual city pages below for detailed contaminant data specific to your area.

Get your water independently tested in California โ†’How does California water quality rank nationally? โ†’

Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in California

Fluoride in California Water Service Co.-Lancaster Water

  • California Water Service Co.-Lancaster

    PWSID CA1910010

    No fluoride level in our data for California Water Service Co.-Lancaster. Your utility's annual water quality report (CCR) lists it.

    Annual water quality report (CCR)

Check fluoride levels by ZIP code

California Water Service Co.-Lancaster Service Area

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California Water Service Co.-Lancaster Contact & Information

Phone

Mailing Address

San Jose, CA 95112

B2B Contact Data

B2B Contact Data Available

Contacts for California Water Service Co.-Lancaster

Updated Jan 2026
Sample Preview (masked)
NameTitleEmail
Jโ–ˆโ–ˆโ–ˆโ–ˆ Sโ–ˆโ–ˆโ–ˆโ–ˆWater Treatment Supervisorjโ–ˆโ–ˆโ–ˆโ–ˆ@cityโ–ˆโ–ˆโ–ˆโ–ˆ.gov
Mโ–ˆโ–ˆโ–ˆโ–ˆ Jโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆUtility Directormโ–ˆโ–ˆโ–ˆโ–ˆ@waterโ–ˆโ–ˆโ–ˆโ–ˆ.org
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Water Sources & Treatment

Water Sources

Not specified

Treatment Methods

Not specified

California Water Service Co.-Lancaster Consumer Confidence Report

A Consumer Confidence Report (CCR) is the EPA-mandated annual water-quality report every community water system must publish by July 1 each year (Safe Drinking Water Act ยง1414(c)(4)). It summarizes contaminants tested, MCL and MCLG comparisons, and any system violations from the prior calendar year.

A current CCR for California Water Service Co.-Lancaster has not been published or validated on TapWaterData yet.

Publish your 2027 CCR

Are you the water operator here? Publish your official 2027-compliant CCR on this page โ€” residents already find it here.

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Residents: contact the utility directly using the phone number above, or check the EPAโ€™s national CCR portal. Reports are typically distributed by mail or posted on the utilityโ€™s official website.

California Water Service Co.-Lancaster Annual Water Quality Reports

Latest Water Quality Report
Consumer Confidence Report (CCR)
View Report

Historical reports are being compiled. Check back soon for archived water quality data.

What is a CCR? The Consumer Confidence Report (CCR) is an annual water quality report that water utilities are required by the EPA to provide to customers. It contains information about your water source, detected contaminants, and compliance status.

EPA Health-Based Violations Since 2020

California Water Service Co.-Lancaster has no health-based EPA violation since 2020 (EPA data as of Q2 2026).

EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).

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Frequently Asked Questions about California Water Service Co.-Lancaster

Is California Water Service Co.-Lancaster water safe to drink?

No water-quality test results are on file for California Water Service Co.-Lancaster. That is a gap in the EPA record we publish, not a finding about the water. Check California Water Service Co.-Lancaster's latest Consumer Confidence Report for its current test results.

Does California Water Service Co.-Lancaster have PFAS in its water?

We hold no PFAS ("forever chemicals") results for California Water Service Co.-Lancaster. That is a gap in our data, not a clean result โ€” EPA may already have sampled this system under its fifth Unregulated Contaminant Monitoring Rule (UCMR5). Contact California Water Service Co.-Lancaster at 408-367-8593 for its latest PFAS results.

How do I pay my California Water Service Co.-Lancaster water bill?

California Water Service Co.-Lancaster bills can be paid at the utility's official payment portal: https://www.calwater.com/customercare/payment-options/. For questions about your bill, call 408-367-8593.

How many people does California Water Service Co.-Lancaster serve?

California Water Service Co.-Lancaster serves 1,430 people across 0 cities in CA.

What cities does California Water Service Co.-Lancaster serve?

California Water Service Co.-Lancaster provides water service to: .

Does California Water Service Co.-Lancaster have any EPA violations?

No. California Water Service Co.-Lancaster has no health-based EPA violation since 2020 (EPA data as of Q2 2026).

What is California Water Service Co.-Lancaster's phone number?

You can contact California Water Service Co.-Lancaster at 408-367-8593. Their mailing address is: San Jose, CA 95112.

Where can I find California Water Service Co.-Lancaster's Consumer Confidence Report?

Community water systems must publish an annual CCR. If you're looking for California Water Service Co.-Lancaster's CCR, contact them at 408-367-8593 or check back here โ€” we update monthly. The 2027 revised CCR Rule introduces new direct-URL distribution requirements.

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How we built this page

Water-quality and contact data on this page comes from public federal and state records. We update each utility's record whenever its underlying source publishes new data โ€” typically within days of an EPA SDWIS refresh.

Spotted a data issue? Use the Spotted something off? link at the bottom of the page โ€” corrections feed back into the next data refresh. Learn more about TapWaterData.

Are you California Water Service Co.-Lancaster? Publish your 2027 CCR

TapWaterData runs a free CCR publishing service for community water systems. Claim this listing to publish your Consumer Confidence Report here โ€” it inherits this page's search authority and reaches every customer who Googles California Water Service Co.-Lancaster.

  • EPA-compliant distribution. Satisfies the 2027 Revised CCR Rule direct-URL requirement with an auditable archive.
  • Publish once a year. Agent-assisted workflow; no login setup for small systems.
  • Inherits this page's reach. Your published CCR appears directly on the page customers already find on Google.
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This form corrects our data; it does not reach California Water Service Co.-Lancaster. For a problem with your water now (discolored water, no water, low pressure, a leak), contact California Water Service Co.-Lancaster directly.

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