US lawWashingtonRegulationsTitle 173 — ECOLOGY, DEPARTMENT OFChapter 173-130A — ODESSA GROUNDWATER SUBAREA MANAGEMENT POLICY173-130A-020WAC 173-130A-020WAC 173-130A-020. BackgroundLast amended: 1982Year: 2026Length: 15 wordsOfficial source The Odessa groundwater subarea was established and the boundaries set forth in chapter 173-128A WAC.PreviousWAC 173-130A-010NextWAC 173-130A-030