WaterZen Rating
In this report:
Lead levels in the drinking water of some cities across the United States are too high, potentially creating public-health issues for the people living in those areas.
What about California Water Service? How much lead is in your drinking water? And how do those levels compare to other cities in the state? We examined data from hundreds of cities across the nation to understand and grade your water quality.
As you can see, California Water Service received the best-possible grade because the amounts of contaminants found in the water supply were better than the Public Health Goal and most other water providers we've analyzed.
According to California Water Service, water samples were taken in 2019. For more details, you can download the annual water-quality report (also known as the Consumer Confidence Report) here.
To take more action to improve your water quality, check out our guides for the various water-testing and filtration options on the market: water pitchers, filtered water bottles, TDS meters, reverse-osmosis filters, under-sink filters, and whole-house water filters.
San Jose has multiple water providers: CalWater - Bakersfield, California Water Service - Dominguez, CalWater (California Water Service) - Visalia, California Water Service - San Mateo, Great Oaks Water, San Jose Water (Edenvale & Coyote Valley), California Water Service, City Of San Jose Water - North San Jose/Alviso, Cal Water - City Of King, California Water Service - Marysville, Cal Water - Oroville, CalWater - Dixon, CalWater - Willows, CalWater - Travis Air Force Base, and Calwater - Salinas Hills, view all. This page provides water quality information for California Water Service.
WaterZen Rating
Lead levels in the drinking water of some cities across the United States are too high, potentially creating public-health issues for the people living in those areas.
What about California Water Service? How much lead is in your drinking water? And how do those levels compare to other cities in the state? We examined data from hundreds of cities across the nation to understand and grade your water quality.
As you can see, California Water Service received the best-possible grade because the amounts of contaminants found in the water supply were better than the Public Health Goal and most other water providers we've analyzed.
According to California Water Service, water samples were taken in 2019. For more details, you can download the annual water-quality report (also known as the Consumer Confidence Report) here.
To take more action to improve your water quality, check out our guides for the various water-testing and filtration options on the market: water pitchers, filtered water bottles, TDS meters, reverse-osmosis filters, under-sink filters, and whole-house water filters.
San Jose has multiple water providers: CalWater - Bakersfield, California Water Service - Dominguez, CalWater (California Water Service) - Visalia, California Water Service - San Mateo, Great Oaks Water, San Jose Water (Edenvale & Coyote Valley), California Water Service, City Of San Jose Water - North San Jose/Alviso, Cal Water - City Of King, California Water Service - Marysville, Cal Water - Oroville, CalWater - Dixon, CalWater - Willows, CalWater - Travis Air Force Base, and Calwater - Salinas Hills, view all. This page provides water quality information for California Water Service.
In this report:
Lead Levels in the Water
Lead contamination of drinking water most often occurs when service pipes corrode. Homes built before 1986 are more likely to have lead pipes, fixtures, and solder.
Lead
No amounts detected.
View details →Ranking of California Cities
How does California Water Service quality compare to other cities in the state?
We compiled and analyzed the levels of contaminant in the water of cities throughout the state, averaged those two numbers for each city, and ranked them accordingly. The grade reflects how each city's overall water quality compares to other cities.
- ABakersfield Water
- ABellflower-Somerset Mutual Water Company
- AArcata Water
- ABeaumont Cherry Valley Water District
- AApple Valley Ranchos Water
- A-Arvin Community Services District
- A-Arcadia Water
- A-Atwater Water
Ranking of Similarly-Sized US Cities
How does California Water Service quality compare to other cities with similar populations?
We've compiled and analyzed contaminant data from water providers which serve similar populations to California Water Service.
- ABatavia Water
- ACity Of Brawley Water
- A-Centralia Water Department
- A-Weatherford Water Department
- A-Lacey Mua
- A-Manville Water Supply
- B+Fort Dodge Water Department
- B+City Of Rockport Water
- B+La Follette Utilities
Ranking of Large US Cities
How does California Water Service quality compare to large US cities?
We've compiled and analyzed contaminant data from the largest water providers in the country (by population served).
Notice
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