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Source Water Assessment Program (SWAP) Maps

The data viewable within this web site is current as of January 15, 2013. If you identify data that you believe to be inaccurate or incorrect, please email DOH's Office of Drinking Water at or phone our office between 8 am and 5 pm Monday through Friday at (360) 236-4593.

This web site is intended to provide summary information pertaining to Public Water Systems. Use or distribution of the data contained in these web pages in a form other than that in which it is presented may inaccurately portray the data.

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