Iowa Code § 459B.305: Dry bedded manure control — water quality.

A dry bedded confinement feeding operation shall retain all dry bedded manure produced by the operation between periods of dry bedded manure application. For purposes of this section, dry bedded manure may be retained by stockpiling as provided in this chapter. A dry bedded confinement feeding operation shall not discharge dry bedded manure directly into water of the state or into a tile line that discharges directly into water of the state.