site                site_code  zone                  lat       lon        data_recorder  date        
West_Agana_Deep     WAG-D      Fore_Reef             13.48384  144.74625  LJR            2014-05-06  
West_Agana_Deep     WAG-D      Fore_Reef             13.48384  144.74625  LJR            2014-08-14