US lawWashingtonRegulationsTitle 173 — ECOLOGY, DEPARTMENT OFChapter 173-132 — DUCK LAKE GROUNDWATER MANAGEMENT SUBAREA173-132-050WAC 173-132-050WAC 173-132-050. Subarea mapLast amended: 1974Year: 2026Length: 23 wordsOfficial source "Duck Lake groundwater subarea" shall include those lands that lie within the heavy outline shown on the following map: duck lake groundwater subareaPreviousWAC 173-132-040NextWAC 173-132-060