A user with access to managing blogs can delete a blog through School Press.
  1. Navigate to Resources.
  2. Locate your Portal post.
  3. Select the correct portal.
  4. Click "Dashboard" below any blog listed.
  5. Once in SchoolPress, hover over My Sites.
  6. Click Network Admin.
  7. Choose Sites.
  8. Hover over the site you wish to modify, and a pop uppop-upappear.
  9. Click Delete > Confirm.