Johnson, Nebraska, offers several convenient RV dump stations for travelers in need of dumping their black water and grey water tanks.You'll find dump stations at the Johnson County Fairgrounds, Victorian Acres RV Park and Campground, Indian Cave State Park, and the Louisville State Recreation Area. These dump stations provide access to fresh water for flushing tanks and often have an RV trash bin for easy waste disposal.See RVshare’s guide to RV dump stations in Johnson, Nebraska, for details on each station.