(1) "District" means the urban flood safety and water quality district created under ORS 550.170.

(2) "District board" means the board of directors of the district.

(3) "Elector" means an individual qualified to vote under Article II, section 2, of the Oregon Constitution, who resides in the district.

(4) "File for record" means to file a document for recording with the county clerk.

(5) "Green infrastructure" means infrastructure adapted to wet weather management that:

(a) Infiltrates, evapotranspires, captures and reuses storm water to maintain or restore natural hydrology;

(b) Protects or restores natural landscapes;

(c) Uses rain gardens, porous pavements, green roofs, infiltration planters, trees, tree boxes, bioswales or other green infrastructure strategies; or

(d) Harvests rain water from an artificial impervious surface for nonpotable uses, including landscape irrigation and toilet flushing.

(6) "Land" or "tract of land" means real property, including improvements on the property.

(7) "Landscape resilience" means the ability of a landscape to sustain ecological functions, native biodiversity and critical landscape processes over time, under changing conditions and despite multiple stressors and uncertainties.

(8) "Managed floodplain" means the portion of the historic Columbia River floodplain located in northern Multnomah County that requires or benefits from management to accomplish the purposes of the district, as determined by the district board.

(9) "Public body" has the meaning given that term in ORS 174.109.

(10) "Works" means dams and storage reservoirs for flood risk reduction, canals, ditches, dikes, levees, revetments, green infrastructure and all other structures, facilities, improvements and property necessary or convenient for conveying and controlling water for the purpose of flood control, environmental benefits or water quality. [2019 c.621 §2]