The hydrogeology program maintains a groundwater database containing information regarding well construction, stratigraphy, groundwater quality (chemistry) and water level data. Currently the database contains information from nearly 8000 wells. An online well data mapping application is now available HERE. You can contact us to make requests for detailed site-specific data and analysis, or to provide information regarding data errors or omissions.
The most common data request involves specifying a search center (typically a parcel or a well) and a search radius (1/2 mile radius is common). The following standard data products are available for any given search (click on the name to view an example of each):
Standard Data Package descriptionExtended Data Package description
Disclaimer: Data has been collected from a variety of sources. Island County makes no guarantee as to the validity or accuracy of this data. Please report any errors to the Island County Hydrogeologist.