US lawWashingtonRegulationsTitle 173 — ECOLOGY, DEPARTMENT OFChapter 173-150 — PROTECTION OF WITHDRAWAL FACILITIES ASSOCIATED WITH GROUNDWATER RIGHTS173-150-020WAC 173-150-020WAC 173-150-020. AuthorityLast amended: 1985Year: 2026Length: 19 wordsOfficial source This chapter is promulgated by the department of ecology pursuant to chapters 43.21A , 90.44, 90.54 and 18.104 RCW.PreviousWAC 173-150-010NextWAC 173-150-030