Welcome To Bishop Sanitation. located in the Columbia Gorge. Our approach is simple. We provide a broad range of affordable, eco-friendly sanitation solutions throughout Oregon and Washington. We specialize in CLEAN. Specialties include: Expert septic tank pumping, tank inspection and cleaning AND sparkling portable toilet(porta potty) & hand wash station ADA compliant & wedding restroom trailer and gray water holding tank rentals. From the new homeowner to seasoned pros working in the construction, special event, agriculture, brewery, municipal and other fields, Bishop offers the expertise you won't have to worry about; at a reasonable price. Give us a call today!