 The CNO's new official residence became Tingey House.In June 2008, Tingey House completed a significant renovation, which included the addition of an expanded kitchen and china closet, construction of a larger staff wing, rehabilitation of the home's greenhouse, and the remodeling of several bathrooms.The Washington Navy Yard is listed as a Superfund site, and the "Admirals' Row" group of homes suffer from nearby lead-contaminated soil, thought to be caused by lead-based paint, lead roofing, and lead water mains.