- For those looking to dump their black and gray water tanks, Kearny, Arizona offers several nearby options.- Queen Valley R.V. Resort is a popular choice, providing waste disposal, fresh water, and a hose for flushing tanks.- Tonto National Forest - Tortilla Campground and USDA Forest Service - Tortilla Campground also have dumping facilities available.- If you're in the area visiting Lost Dutchman State Park, they have a dump station on-site as well as trash bins for easy waste disposal.