Versions of See prior versions of a law on LawServer 2024 Iowa Code 459A.206 – Settled open feedlot effluent basins and unformed animal truck wash effluent structures — soils and hydrogeologic report 2023 Iowa Code 459A.206 – Settled open feedlot effluent basins and unformed animal truck wash effluent structures — soils and hydrogeologic report 2022 Iowa Code 459A.206 – Settled open feedlot effluent basins and unformed animal truck wash effluent structures — soils and hydrogeologic report. 2020 Iowa Code 459A.206 – Settled open feedlot effluent basins and unformed animal truck wash effluent structures — soils and hydrogeologic report. 2018 Iowa Code 459A.206 – Settled open feedlot effluent basins and unformed animal truck wash effluent structures — soils and hydrogeologic report. 2016 Iowa Code 459A.206 – Settled open feedlot effluent basins and unformed animal truck wash effluent structures 2014 Iowa Code 459A.206 – Settled open feedlot effluent basins – soils and hydrogeologic report. 2009 Iowa Code 459A.206 – Settled open feedlot effluent basins — soils and hydrogeologic report