With ICGeoMap application, you can view wells in an area. Clicking on any well provides a link to more information about the well, including scanned well logs and public water system information (where applicable and available). If you are looking for well information for a few wells in an area, this is the easiest way to get that information.
The Island County Hydrogeology Dashboard compiles information from multiple data sources for water quality and geologic information. If you are looking for water quality information for a specific well, this is the easiest way to get that information.
Groundwater data is also available through the original data sources:
Well Logs are available through the Washington Department of Ecology Well Report