Versions of See prior versions of a law on LawServer 2023 Oregon Statutes 550.170 – Urban flood safety and water quality district; boundaries; vested water rights unimpaired 2021 Oregon Statutes 550.170 – Urban flood safety and water quality district; boundaries; vested water rights unimpaired 2019 Oregon Statutes 550.170 – Urban flood safety and water quality district; boundaries; vested water rights unimpaired