US lawWashingtonRegulationsTitle 173 — ECOLOGY, DEPARTMENT OFChapter 173-20 — SHORELINE MANAGEMENT ACT—LAKES CONSTITUTING SHORELINES OF THE STATE173-20-170WAC 173-20-170WAC 173-20-170. Lakes coming under purview of chapter 90.58 RCW—Columbia County lakes of statewide significanceLast amended: 1972Year: 2026Length: 1 wordsOfficial source None.PreviousWAC 173-20-160NextWAC 173-20-180