Waterstone Alta Loma Apartments 9600 Nineteenth Street is a rental apartment building with 6 floorplans available. It is located in Rancho Cucamonga. It has apartment amenities including assigned parking, carpet, microwave, dishwasher, in-unit laundry, and air conditioning. It has building amenities including storage, swimming pool, package service, residents lounge, fitness center, business center, and outdoor space.