Regulations, restrictions, or enforcement provisions established in a drainage plan or part, adjunct, amendment, or addition thereto adopted by the board of county commissioners may from time to time be amended, supplemented, changed, modified, or repealed by action of the board of county commissioners as outlined in this chapter. Any amendment, supplement, change, modification, or repeal may be requested through a petition signed by thirty percent of the landowners in a drainage district or area requesting change.
SDCL 46A-10A-37