Programatically get all available list(s) on a site (Code)

public List GetList(string siteUrl)
        {
            List sList = new List();
            using (SPSite WebApp = new SPSite(siteUrl))
            {
                using (SPWeb site = WebApp.OpenWeb())
                {
                    foreach(SPList currentList in site.Lists)
                    {
                        sList.Add(currentList.Title.ToString());
                    }
                }
            }
            return sList;
        }