In Michigan, most biosolids used for agriculture are applied to fields that will grow crops such as corn, soybeans, and wheat.
In some instances, biosolids can be treated in an advanced treatment process to create what is referred to as Class A Exceptional Quality (EQ) biosolids.  EQ biosolids describe biosolids meeting both Class A and Exceptional Quality standards for the level of pathogen reduction, stringent metal limits, and vector attraction standards. EQ biosolids can be used on crops for human consumption as well as home garden and landscape use.