US lawWashingtonRegulationsTitle 173 — ECOLOGY, DEPARTMENT OFChapter 173-591 — RESERVATION OF FUTURE PUBLIC WATER SUPPLY FOR THURSTON COUNTY173-591-010WAC 173-591-010WAC 173-591-010. PurposeLast amended: 1986Year: 2026Length: 17 wordsOfficial source The purpose of this chapter is to reserve groundwaters within Thurston County for future public water supply.NextWAC 173-591-020