Iowa Code § 161A.50
In any action brought under section 161A.49, the burden of proof shall be upon the commissioners to show that soil erosion is in fact occurring in excess of the applicable soil loss limits and that the defendant has not established or maintained soil and water conservation practices or erosion control practices in compliance with the soil and water conservation district's regulations. With respect to construction, repair, or maintenance of any public street, road, or highway, evidence that soil erosion control standards equivalent to or in excess of those currently imposed by the United States government on the project or like projects involving use of federal funds shall create a presumption of compliance with the applicable soil loss limit. Upon receiving satisfactory proof, the court shall issue an order directing the landowner or landowners to comply with the administrative order previously issued by the commissioners. The court may modify such administrative order if deemed necessary. Notice of the court order shall be given either by personal service or by restricted certified mail to each of the persons to whom the order is directed, who may within thirty days from the date of the court order appeal to the supreme court. Any person who fails to comply with a court order issued pursuant to this section within the time specified in such order, unless the order has been stayed pending an appeal, shall be deemed in contempt of court and may be punished accordingly.
Iowa Code § 161A.50
Referred to in §161A.48, 161A.61, 161A.74