San Jose Water
Drinking water quality, contact, and Consumer Confidence Report
Serving 12 cities in CA · PWSID CA4310011
San Jose Water serves 1,007,514 people. 1 health-based violation since 2020 in EPA's record — full violation history below.
- People served
- 1,007,514
- Last EPA sample
- 2025-10-06
- PFAS
- Detected (1 compound)
- Health-based violations since 2020
- 1
Data sources: EPA SDWIS, San Jose Water'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.
Official San Jose Water Resources
San Jose Water Service Area
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This map shows the approximate service area for San Jose Water. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.
San Jose Water Water Quality Grade
Not graded: Monitor
San Jose Water reads Monitor. A letter grade is given only beside a Safe verdict.
Is San Jose Water Water Safe to Drink?
San Jose Water has reported 2 contaminants above EPA health-based guidelines (MCLGs) in at least one city served. San Jose Water has 1 health-based EPA violation since 2020 (EPA data as of Q2 2026), none of them open. We recommend reviewing individual city reports below for specific water quality details.
This utility serves 1,007,514 people across 12 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 →How does California water quality rank nationally? →
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in California
Learn more about the contaminants detected in San Jose Water:
San Jose Water Service Area
Alum Rock, CA
Burbank, CA
Cambrian Park, CA
Campbell, CA
Cupertino, CA
East Foothills, CA
Fruitdale, CA
Lexington Hills, CA
Los Gatos, CA
Monte Sereno, CA
San Jose, CA
Saratoga, CA
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San Jose Water Contact & Information
Phone
Mailing Address
B2B Contact Data
B2B Contact Data Available
Contacts for San Jose Water
| Name | Title | Phone | |
|---|---|---|---|
| J████ S████ | Water Treatment Supervisor | (555) ███-████ | j████@city████.gov |
| M████ J██████ | Utility Director | (555) ███-████ | m████@water████.org |
Water Sources & Treatment
Water Sources
Treatment Methods
Disinfectant Used
chloramines, hypochlorite, ozone
San Jose Water 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 §1414(c)(4)). It summarizes contaminants tested, MCL and MCLG comparisons, and any system violations from the prior calendar year.
A current CCR for San Jose Water has not been published or validated on TapWaterData yet.
Residents: contact the utility directly using the phone number above, or check the EPA’s national CCR portal. Reports are typically distributed by mail or posted on the utility’s official website.
San Jose Water Annual Water Quality Reports
We don’t have a link we can confirm belongs to this system, and we’d rather show none than the wrong utility’s. CA State Water Resources Control Board, Div. of Drinking Water publishes drinking-water reports for systems in this state.
Visit CA State Water Resources Control Board, Div. of Drinking WaterWhat 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
San Jose Water has 1 health-based EPA violation since 2020 (EPA data as of Q2 2026), none of them open.
EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
| Violation | Contaminant or rule | Period | Status | Notice |
|---|---|---|---|---|
| Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Jun 2023 | Resolved | Tier 2 public notice |
Concerned about what's in your water?
You're viewing 2 contaminants above health-based guidelines here. Your own tap water can differ — upload your test (PDF or a photo) and we'll email a full plain-English reading of every number, free.
Your upload also helps us keep local water data accurate — we only ever share anonymized, area-level summaries.
Upload my testRecommended Water Filters for San Jose Water
Based on water quality data from cities served by San Jose Water, we recommend NSF-certified filters that can remove contaminants above health guidelines.
Filter guides for the contaminants detected here:
Frequently Asked Questions about San Jose Water
Is San Jose Water water safe to drink?
Does San Jose Water have PFAS in its water?
How do I pay my San Jose Water water bill?
How many people does San Jose Water serve?
What cities does San Jose Water serve?
Does San Jose Water have any EPA violations?
What is San Jose Water's phone number?
Where can I find San Jose Water's Consumer Confidence Report?
Similar water utilities in California
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 — typically within days of an EPA SDWIS refresh.
- Contaminants & violations: EPA Safe Drinking Water Information System (SDWIS) plus the Unregulated Contaminant Monitoring Rule (UCMR-5) for PFAS and emerging contaminants.
- Annual reports: San Jose Water's most recent published Consumer Confidence Report (CCR), where available.
- Service area & contact: EPA SDWIS. The compliance records it holds for this system are reported to EPA by CA State Water Resources Control Board, Div. of Drinking Water, the state's drinking-water primacy agency.
Spotted a data issue? Use the Spotted something off? link at the bottom of the page — corrections feed back into the next data refresh. Learn more about TapWaterData.
Are you San Jose Water? 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 — it inherits this page's search authority and reaches every customer who Googles San Jose Water.
- 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.
Free for operators. No card required. Typical setup: 5 minutes.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach San Jose Water. For a problem with your water now (discolored water, no water, low pressure, a leak), contact San Jose Water directly.
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