A newer dataset developed in 2021, called Aquifer Vulnerability to Sea Water Intrusion, has replaced this version. This dataset remains available for download for comparison purposes. This dataset was developed as part of the Risk Assessment Framework for Coastal Bedrock Aquifers project completed by Simon Fraser University, for the BC Ministry of Environment and the BC Ministry of Forests, Lands and Natural Resource Operations. Features in the dataset show the vulnerability of coastal aquifers on the Gulf Islands to salt water intrusion, based on their intrinsic susceptibility (aquifer properties such as distance from the coast and topography) and groundwater pumping (well density and type of use). This link refers to the Master of Science Thesis Report prepared by Jeanette Klassen in 2015 as a component of the collaborative study between Simon Fraser University and the Province of British Columbia.