WaterZen Rating
Lead and copper 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 Contra Costa Water District? How much lead and copper are 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, Contra Costa Water District 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 Contra Costa Water District, water samples were taken in 2019 (view all: reporting years: 2016). 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.
WaterZen Rating
Lead and copper 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 Contra Costa Water District? How much lead and copper are 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, Contra Costa Water District 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 Contra Costa Water District, water samples were taken in 2019 (view all: reporting years: 2016). 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.
Lead and Copper Levels in the Water
Lead and copper 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 →Copper
The level of Copper is higher than the Public Health Goal and lower than most water providers.
View details →Ranking of California Cities
How does Contra Costa Water District 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.
- AAzusa Light And Water
- 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 Contra Costa Water District quality compare to other cities with similar populations?
We've compiled and analyzed contaminant data from water providers which serve similar populations to Contra Costa Water District.
- AClarksville Water
- AAWU (Anchorage Water Utility)
- AHuntsville Utilities
- AArtesian Water
- A-Henry County Water
- A-Pasco County Utilities (PCU)
- A-Arlington County Water
- BNY American Water - Lynbrook
Ranking of Large US Cities
How does Contra Costa Water District 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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