The 1:100,000 scale maps display the principal, secondary and unproductive aquifers in two different types of aquifer designations (i.e. superficial and bedrock) in Scotland.

- Aquifer Productivity describes the potential of bedrock and superficial deposit aquifers to sustain various levels of borehole water supply, plus the dominant groundwater flow type in each aquifer.

- Groundwater Vulnerability provides an assessment of the vulnerability of groundwater in the uppermost water table to a pollutant discharged at the ground surface.

The dataset helps characterise groundwater bodies as required by the Water Framework Directive and are useful in policy development (e.g. in prioritising water supply and site investigations, informing planning decisions) and improving awareness of groundwater in general.