As a result of investigation into the ground and surface water usage throughout the state, certain areas are ear-marked as having possible problems. If this occurs, the area is put under a moratorium to halt any further development, while the area is further investigated. If it is decided that the area requires water usage monitoring, then the area may be prescribed. When an area is prescribed, the line work is removed from this layer and placed in the Prescribed areas layer. This coverage contains the line work of those areas which are under moratorium. This layer is maintained as the master coverage of moratorium areas within the state.