The director may approve sanitary sewer designs that do not meet the minimum slope requirement stated in Chapter 5, if the full flowing sewer velocity is at least 1.5 feet per second. To request approval, the owner of the collection system -will submit a letter to the director stating that they accept the design and are willing and able to provide additional cleaning to maintain the flatter sewer.
123 Neb. Admin. Code, ch. 6, § 002