Livestock Confinement Siting in Hancock County, Iowa

A single long-serving supervisor, the same message, across more than a decade

Iowa's Master Matrix, established under Iowa Code Chapter 459, is a statewide scoring system county boards of supervisors apply to a new or expanding confinement animal feeding operation's construction permit application. A site that scores enough points on manure management, siting, and community-impact criteria generally proceeds regardless of the county's own vote or local objection. What makes Hancock County a useful case study is not that this dynamic exists -- it's standard across Iowa -- but that the same county official, Board Chair Florence "Sis" Greiman, has said so on the record across multiple, separately reported applications spanning more than a decade, giving a rare consistent paper trail of how one county has actually experienced the process over time.

The documented pattern: 2010, 2019, 2022, and beyond

In 2010, the Board of Supervisors voted unanimously to recommend denying a Prestage Farms LLC application for a 4,800-head hog confinement in Amsterdam Township -- but Greiman noted at the time that because the project met the state's Master Matrix scoring requirements, the county's denial recommendation wouldn't actually stop construction. In 2019, supervisors voted unanimously to recommend approving a Summit Farms Pork LLC application for two deep-pit swine barns totaling just under 5,000 head in Ell Township, Section 35, despite a resident's objection over odor, dust, and truck traffic; Greiman characterized the county's role as largely limited to forwarding the application's construction details to Iowa DNR for its own permitting decision.

In 2022, the county approved a similar application near Forest City for two buildings of roughly 5,000 head each, sited about six-tenths of a mile from water at the Torkelson Pits Wildlife Area and expected to produce about 1.6 million gallons of manure annually. A separate application from a Summit Farms LLC entity in Erin Township, Section 25, drew a 40-minute public hearing where nearly 20 residents -- including parents of young children and local business owners -- raised concerns about odor, flies, water quality, and physical health; that application passed on a 2-1 vote, with Greiman the lone dissenting vote. Taken together, these are at least four separately reported rounds spanning well over a decade, not an isolated dispute, and each one resolved the same way: a matrix-qualifying application moves forward.

What this means if you're buying near, or planning, a confinement site

• If you're evaluating a parcel near an existing or rumored confinement, ask the Hancock County Board of Supervisors' office directly whether any Master Matrix applications are pending, recently approved, or under construction nearby -- past cases (Amsterdam, Ell, and Erin Townships, and near Forest City) show the county hears and records these by name, township, and section.
• Public comment on a proposed confinement happens at the Master Matrix hearing before the Board of Supervisors -- there is no separate zoning conditional-use process specific to confinements beyond that hearing, regardless of whether the site sits in one of the 10 zoned townships or the 7 unzoned ones.
• If you're the one planning a confinement, confirm current Master Matrix scoring criteria and the minimum passing score directly with Iowa DNR's Animal Feeding Operations program, since matrix criteria can be updated by the state legislature.
• For water-quality concerns tied to a nearby confinement, Iowa DNR's Animal Feeding Operations program administers permits and complaint intake at the state level; Hancock County Environmental Health is a reasonable first local contact for private well testing near a confinement site.
• Ask the county Assessor whether a nearby confinement has affected assessed values for surrounding parcels -- proximity is a factor some buyers and appraisers weigh even though it has no bearing on the Master Matrix outcome itself.