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 2021: 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.