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Small Water Systems


Contra Costa Environmental Health works with 135 small water systems to make sure that the cleanest, safest and most reliable drinking water possible is delivered to approximately 13,000 users. A small water system has less than 200 service connections. Those operating small water systems in Contra Costa County must possess a valid water supply permit from Environmental Health, provide an emergency notification plan in case of a health emergency and perform required monitoring and reporting of water quality as specified by state regulations.



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