Iowa Code 459B.307 – Stockpiling — state requirements — water quality
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A person may stockpile dry bedded manure, subject to all of the following:
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:
(1) Four hundred feet from a designated area other than a high-quality water resource.
(2) Eight hundred feet from a high-quality water resource.
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:
(1) The person must stockpile the dry bedded manure at a location where there is a vertical separation distance of at least five feet between the bottom of the stockpiled dry manure and the underlying limestone, dolomite, or other soluble rock in karst terrain or the underlying sand and gravel aquifer in an alluvial aquifer area.
(2) The dry bedded manure must be stockpiled on reinforced concrete at least five inches thick.
Terms Used In Iowa Code 459B.307
- Alluvial aquifer area: means an area underlaid by sand or gravel aquifers situated beneath floodplains along stream valleys and includes alluvial deposits associated with stream terraces and benches, contiguous wind-blown sand deposits, and glacial outwash deposits. See Iowa Code 459B.102
- Designated area: means the same as defined in section 459A. See Iowa Code 459B.102
- Dry bedded manure: means manure from animals that meets all of the following requirements:a. See Iowa Code 459B.102
- following: when used by way of reference to a chapter or other part of a statute mean the next preceding or next following chapter or other part. See Iowa Code 4.1
- Grassed waterway: means the same as defined in section 459A. See Iowa Code 459B.102
- High-quality water resource: means the same as defined in section 459. See Iowa Code 459B.102
- Karst terrain: means the same as defined in section 459. See Iowa Code 459B.102
- Manure: means the same as defined in section 459. See Iowa Code 459B.102
- Person: means an individual, partnership, firm, corporation, or association. See Iowa Code 462A.2
- Stockpile: means to store dry bedded manure outside of a dry bedded manure confinement feeding operation building or a dry bedded manure storage structure. See Iowa Code 459B.102
2. The person shall remove the stockpiled dry bedded manure and apply it in accordance with the provisions of chapter 459, including but not limited to section 459.311, within six months after the dry bedded manure is stockpiled.