Iowa Code Title XI. Natural Resources [Chs. 455-485] § 459B.307. Stockpiling--state requirements--water quality

1. a. The person shall not stockpile the dry bedded manure within the following distances to a designated area unless the dry manure is maintained in a manner that will not allow precipitation-induced runoff to drain from the dry bedded manure to the designated area:

b. The person shall not stockpile dry bedded manure within two hundred feet from a terrace tile inlet or surface tile inlet unless the dry bedded manure is maintained in a manner that will not allow precipitation-induced runoff to drain from the dry bedded manure to the terrace tile inlet or surface tile inlet.

c. The person shall not stockpile dry bedded manure in a grassed waterway, where water pools on the soil surface, or in any location where surface water will enter the stockpiled dry bedded manure.

d. The person shall not stockpile dry bedded manure on land having a slope of more than three percent unless methods, structures, or practices are implemented to contain the stockpiled dry bedded manure, including but not limited to using hay bales, silt fences, temporary earthen berms, or other effective measures, and to prevent or diminish precipitation-induced runoff from the stockpiled dry bedded manure.

e. The person shall not stockpile dry bedded manure on karst terrain or in an alluvial aquifer area unless the person complies with all of the following: