2023 South Dakota Codified Laws 46-10A-1. Establishment of area–Petition of chief engineer

2022 South Dakota Codified Laws 46-10A-1. Establishment of area–Petition of chief engineer

2021 South Dakota Codified Laws 46-10A-1. Establishment of area–Petition of chief engineer

2019 South Dakota Codified Laws 46-10A-1. Establishment of area–Petition of chief engineer

2018 South Dakota Codified Laws 46-10A-1. Establishment of area–Petition of chief engineer

2016 South Dakota Codified Laws 46-10A-1. Establishment of area–Petition of chief engineer

2014 South Dakota Codified Laws 46-10A-1. Establishment of area–Petition of chief engineer

2010 South Dakota Laws 46-10A-1 – Establishment of area–Petition of chief engineer