Washington state is known for having great tasting, clear drinking water. Washington is served by many different types of water systems: private wells, large municipal water systems, and private water systems. This study focused on the public and private systems regulated by the state and serving predominantly residential homes. Larger systems often serve commercial and industrial uses too. While only a small percentage of the state’s population is served by smaller water systems serving 25 people or less, they account for 85% of the state’s water systems and are only regulated at the county level. In general, water system capacity for Washington’s larger water systems was adequate to plentiful, while the smaller water systems do not have adequate capacity. Card for Washington’s Infrastructure

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