Search for a News Release

Press/Media inquiries: PIO@dnr.iowa.gov


DNR News Releases

Livestock Master Matrix adopted in 86 counties

  • 2/22/2022 9:27:00 AM
  • View Count 573
  • Return

DES MOINES –Most of Iowa’s 99 counties notified DNR in January that they plan to evaluate construction permit applications and proposed animal confinement locations by using the master matrix.

With few exceptions, most counties will use the matrix during the next 12 months. The following counties will not use the matrix in 2022: Benton, Davis, Des Moines, Guthrie, Grundy, Keokuk, Lee, Mahaska, Osceola, Plymouth, Wapello, Warren and Washington.

Additional requirements are required for animal confinement producers who need a construction permit before they can build in counties using the matrix. Producers qualify by choosing a site and using practices that reduce impacts on air, water and the community.

When a county adopts the master matrix, the board of supervisors can provide more input to producers on site selection, and proposed structures and facility management. Participating counties score each master matrix submitted in their county and can recommend DNR approve or deny the construction permit. They can also join in DNR visits to a proposed confinement site.

While all counties may submit comments to DNR during the permitting process, counties that adopt the master matrix can also appeal a preliminary permit to the state Environmental Protection Commission.

The deadline for enrolling in the program is Jan. 31 of each year.

Find more information, including a map of participating counties, on DNR’s AFO webpages under Master Matrix.

The master matrix applies only to producers who must get a construction permit to build, expand or modify a totally roofed facility. Generally, these are confinement (totally roofed) feeding operations with at least 2,500 finishing hogs, 1,000 beef cattle or 715 mature dairy cows.

Share