Public Water System: California Water Service Co. - Palos Ver's tap water quality report is the compilation of data collected from federal, state, and local government agencies, most prominently the EPA. We strive to populate the report with the latest data concerning water contaminants, lead and copper levels, and water quality violations. We only collect drinking water data from public water systems.

PWS Service Information
PWS ID: CA1910104
Type: Community water system
EPA Region: 09
Primary Service Area: Residential Area
Primary Source: Surface water purchased
Population Served: 69,995
Contact Information
SAN JOSE, CA 95112-4508

This public water system services 1 county.

Summary Results

A summary view of the the times a water contaminant was tested and found to exceed the level set by the EPA (the MCL).

We couldn't find any records of contaminants exceeding the regulated limits in your water.

Other Water Contaminants Tested

The following contaminants were tested and within national EPA guidelines.

We couldn't find any records of contaminants in your water.

Lead and Copper Data

Lead and copper are recorded separately from other contaminants because of the Lead and Copper Rule. As with all other results, these are the findings at the water supply. Lead and copper can be — and often are — added to drinking water in between the water facility and a tap.

Sample ID Contaminant Sampling Start Date Sampling End Date Result
CA44352 lead 2012-01-01 2014-12-31 0mg/L
CA39298 lead 2010-01-01 2012-12-31 0mg/L
191010411054L1ST 6 lead 2011-01-01 2011-12-31 0.005mg/L
191010411115LT3 lead 2011-01-01 2011-12-31 0.005mg/L
191010410239L lead 2010-01-01 2010-12-31 0.007mg/L
191010410258LT2 lead 2010-01-01 2010-12-31 0.003mg/L
191010410267L2ND 6 lead 2010-01-01 2010-12-31 0.005mg/L
191010410273LT1 lead 2010-01-01 2010-12-31 0.006mg/L
191010410342L1ST 6 - lead 2010-01-01 2010-12-31 0.005mg/L
191010409069LA1 lead 2009-01-01 2009-12-31 0.005mg/L
191010409213LT3 lead 2009-01-01 2009-12-31 0.005mg/L
191010408351L2ND 6-E lead 2008-01-01 2008-12-31 0.008mg/L


Known violations of the Safe Drinking Water Act as recorded by the EPA.

Compliance Dates Rule Violation Type Contaminant Name Status
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance

What My Water Data Means

Water data isn't always easy to interpret, but by following the links on this page you should be able to have most of your questions answered. By clicking the name of a water contaminant or secondary substance you can learn about that specific substance. Ultimately this page should give you some insight towards learning if your water is safe, what water filter you should buy (if any), and how well your local water compares against other sources.


The origin of's water data is explained on our Data Sources page.

Why Is My Water Data Not More Recent?

The recency of the data for your ZIP code depends on the last your water source was tested, by a federal, state, or local agency. More information about the timing can be determined by learning about the dataset in question and seeing how often the EPA (other another governing body) mandated testing.