46-635.Ground water, defined.Ground water is that water which occurs or moves, seeps, filters, or percolates through the ground under the surface of the land.SourceLaws 1963, c. 274, § 1, p. 827. AnnotationsGround water as defined herein does not include water artificially applied to the land. Peters v. Langrehr, 188 Neb. 480, 197 N.W.2d 698 (1972).