Place your cursor over Reference Data and left click on the sub-option Organizations.
Using the drop-down list select the level of organization that you would like to delete from. You can use the drop-down lists to select data by left clicking on the Drop-down list button 
. Then left click on the data you would like to select. You can also select data by using your up and down arrow keys on your computer keyboard to navigate through the list..
Find the organization that you would like to delete and left click on the Delete button 
on that line.
A dialog box will appear for you to choose either 
to delete this organization or 
to not delete.
If the item you are trying to delete is associated with any of the data in the database IQSweb will not allow you to delete the data.