Versions of See prior versions of a law on LawServer 2024 Iowa Code 468.189 – Closing agricultural drainage wells — assessment of costs within a drainage district 2023 Iowa Code 468.189 – Closing agricultural drainage wells — assessment of costs within a drainage district 2022 Iowa Code 468.189 – Closing agricultural drainage wells — assessment of costs within a drainage district. 2020 Iowa Code 468.189 – Closing agricultural drainage wells — assessment of costs within a drainage district. 2018 Iowa Code 468.189 – Closing agricultural drainage wells — assessment of costs within a drainage district. 2016 Iowa Code 468.189 – Closing agricultural drainage wells 2014 Iowa Code 468.189 – Closing agricultural drainage wells – assessment of costs within a drainage district. 2009 Iowa Code 468.189 – Closing agricultural drainage wells — assessment of costs within a drainage district