How to get IQueryable data object from from stored procedure

HI,
I am migrating a .net 2.0 code which has stored procedure to fetch the data. I created an Enitity Class like so
    public class Facilities     {         public virtual string SITE_UID { get; set; }         public virtual string FACNO { get; set; }         public virtual int PREV_STAT_MISSION { get; set; }         public virtual int STAT_MISSION { get; set; }         public virtual int PREV_STAT_QUAL { get; set; }         public virtual int STAT_QUAL { get; set; }         public virtual int CY_RATING { get; set; }         public virtual string TYPE { get; set; }         pub ...