117 Neb. Admin. Code, ch. 3, § 003
These are surface waters, whether or not they are designated in these Standards, which possess an existing quality which exceeds levels necessary to maintain recreational and/or aquatic life uses. The existing water quality of these surface waters shall be maintained and protected. However, the State may choose, in accordance with Neb. Rev. Stat. § 81-1513, to allow lower water quality as a result of important and necessary economic or social development in the area. There shall be achieved the highest statutory and regulatory requirements for all new and existing point sources and all cost-effective and reasonable best management practices for nonpoint source control. In cases where potential water quality impairment associated with a thermal discharge is involved, the method of implementation of this antidegradation policy shall be consistent with Section 316 of the Clean Water Act.
117 Neb. Admin. Code, ch. 3, § 003