# Iowa Code § 459B.307: Stockpiling — state requirements — water quality > Iowa · Statutes · In force URL: https://www.frixlaw.com/law-library/statutes/STATE_IA_TXI_C459B_S459B.307 ## Section - **Citation:** Iowa Code § 459B.307 - **Heading:** Stockpiling — state requirements — water quality - **Jurisdiction:** Iowa - **Kind:** Statutes - **Status:** In force - **Text as of:** August 14, 2026 - **Source:** Compiled text - **Location:** IA Code / Title XI / Chapter 459B / Section 459B.307 ## Text 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) (a) Four hundred feet from a designated area other than a high-quality water resource. (1) (a) Eight hundred feet from a high-quality water resource. (1) (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. (1) (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. (1) (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. (1) (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) (e) 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. (1) (e) The dry bedded manure must be stockpiled on reinforced concrete at least five inches thick. (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. 2009 Acts, ch 155, §14, 18 ## Nearby sections - [Iowa Code § 459B.101 Title.](https://www.frixlaw.com/law-library/statutes/STATE_IA_TXI_C459B_S459B.101.md) - [Iowa Code § 459B.102 Definitions.](https://www.frixlaw.com/law-library/statutes/STATE_IA_TXI_C459B_S459B.102.md) - [Iowa Code § 459B.103 Special terms.](https://www.frixlaw.com/law-library/statutes/STATE_IA_TXI_C459B_S459B.103.md) - [Iowa Code § 459B.104 General authority — commission and department — purpose — compliance.](https://www.frixlaw.com/law-library/statutes/STATE_IA_TXI_C459B_S459B.104.md) - [Iowa Code § 459B.201 Construction design standards.](https://www.frixlaw.com/law-library/statutes/STATE_IA_TXI_C459B_S459B.201.md) - [Iowa Code § 459B.202 Distance requirements.](https://www.frixlaw.com/law-library/statutes/STATE_IA_TXI_C459B_S459B.202.md) - [Iowa Code § 459B.301 Stockpiling — air quality.](https://www.frixlaw.com/law-library/statutes/STATE_IA_TXI_C459B_S459B.301.md) - [Iowa Code § 459B.305 Dry bedded manure control — water quality.](https://www.frixlaw.com/law-library/statutes/STATE_IA_TXI_C459B_S459B.305.md) - [Iowa Code § 459B.306 Stockpiling — NPDES requirements — water quality.](https://www.frixlaw.com/law-library/statutes/STATE_IA_TXI_C459B_S459B.306.md) - [Iowa Code § 459B.307 Stockpiling — state requirements — water quality.](https://www.frixlaw.com/law-library/statutes/STATE_IA_TXI_C459B_S459B.307.md) - [Iowa Code § 459B.308 Manure management plan for a dry bedded confinement feeding operation.](https://www.frixlaw.com/law-library/statutes/STATE_IA_TXI_C459B_S459B.308.md) - [Iowa Code § 459B.401 General.](https://www.frixlaw.com/law-library/statutes/STATE_IA_TXI_C459B_S459B.401.md) - [Iowa Code § 459B.402 Violations civil penalty.](https://www.frixlaw.com/law-library/statutes/STATE_IA_TXI_C459B_S459B.402.md) --- Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_IA_TXI_C459B_S459B.307. Check the current official text before relying on it. Not legal advice.