The protection of subterranean water from pollution or degradation is of great concern. The depletion of subterranean water is of great concern. The purpose of this chapter is to allow the creation of aquifer protection areas to finance the protection, preservation, and rehabilitation of subterranean water, and to reduce special assessments imposed upon households to finance facilities for such purposes. Pollution and degradation of subterranean drinking water supplies, and the depletion of subterranean drinking water supplies, pose immediate threats to the safety and welfare of the citizens of this state.