If an action is commenced pursuant to section 46-2,102 or 46-2,103, an order of the Chief Water Officer identifying water stored or to be stored underground, or approving fees or assessments, may not be collaterally attacked.
Neb. Rev. Stat. § 46-2,104, under IRRIGATION AND REGULATION OF WATER.
Neb. Rev. Stat. § 46-2,104
If an action is commenced pursuant to section 46-2,102 or 46-2,103, an order of the Chief Water Officer identifying water stored or to be stored underground, or approving fees or assessments, may not be collaterally attacked.