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.Wash. Admin. Code § 173-150-060
Statutory Authority: Chapter 90.44 RCW. 85-12-017 (Order 84-44), § 173-150-060, filed 5/29/85.