- There are several convenient dump stations near Johnstown, OH for RV travelers to utilize.- Tree Haven Campground offers a dump station where you can empty your black water and gray water tanks, as well as access fresh water for flushing tanks.- Lazy River at Granville is another option with a dump station available for easy RV waste disposal.- Autumn Lakes Family Campground also provides a dump station for convenient dumping of black water and gray water.- Berkshire Lake Campgrounds offers a dump station as well, ensuring that you have ample options for waste disposal during your travels.