Iowa § 459.311 - 459.311 Minimum requirements for manure control.

§ 459.311. 459.311 Minimum requirements for manure control.

1. A confinement feeding operation shall retain all manure produced by the operation between periods of manure disposal. For purposes of this section, dry manure may be retained by stockpiling as provided in this subchapter. A confinement feeding operation shall not discharge manure directly into water of the state or into a tile line that discharges directly into water of the state. 2. Notwithstanding subsection 1, a confinement feeding operation that is a concentrated animal feeding operation as defined in 40 C.F.R. §122.23(b) shall comply with applicable national pollutant discharge elimination system permit requirements as provided in the federal Water Pollution Control Act, 33 U.S.C. ch. 26, as amended, and 40 C.F.R. pts. 122 and 412, pursuant to rules that shall be adopted by the commission. Any rules adopted pursuant to this subsection shall be no more stringent than requirements under the federal Water Pollution Control Act, 33 U.S.C. ch. 26, as amended, and 40 C.F.R. pts. 122 and 412. 3. Manure from an animal feeding operation shall be disposed of in a manner which will not cause surface water or groundwater pollution. Disposal in accordance with the provisions of state law, including this chapter, rules adopted pursuant to the provisions of state law, including this chapter, guidelines adopted pursuant to this chapter, and section 459.314, shall be deemed as compliance with this requirement. 4. The department may require that the owner of a confinement feeding operation install and operate a water pollution monitoring system as part of an unformed manure storage structure. 5. The owner of the confinement feeding operation which discontinues the use of the operation shall remove all manure from related confinement feeding operation structures used to store manure, by a date specified in an order issued to the operation by the department, or six months following the date that the confinement feeding operation is discontinued, whichever is earlier. 95 Acts, ch 195, §24 CS95, §455B.201 98 Acts, ch 1209, §28; 99 Acts, ch 114, §57; 2002 Acts, ch 1137, §37, 68, 71; 2002 Acts, 2nd Ex, ch 1003, §259, 260, 262 C2003, §459.311 2009 Acts, ch 38, §8, 16; 2010 Acts, ch 1029, §2 Referred to in §459.311E, 459.313A, 459.318, 459.319, 459B.307 Fri Dec 12 20:44:57 2025 Iowa Code 2026, Section 459.311 (26, 0)