WAC 173-150-060. Impairment of water right

For the purposes of this chapter, a groundwater right which pertains to qualifying withdrawal facilities, shall be deemed to be impaired whenever: (1) There is an interruption or an interference in the availability of water to said facilities, or a contamination of such water, caused by the withdrawal of groundwater by a junior water right holder or holders; and (2) Significant modification is required to be made to said facilities in order to allow the senior groundwater right to be exercised.