The University of Minnesota Twin Cities owns two facilities for generating steam and electricity that are operated by Foster Wheeler Twin Cities, Inc. - the Southeast Steam Plant and the St. Paul Steam Plant The primary source of air emissions at the Southeast Steam Plant is five boilers – a circulating fluidized bed (CFB) boiler (EU 001) burning coal, wood, natural gas, and oil; two package boilers (EU 002 and EU 003) burning oil and natural gas; and two coal-fired boilers (EU 004 and EU 005) burning coal and oil. Two amendments to the permit in 2003 authorized the University of Minnesota to conduct limited test burns of oat hulls in the CFB boiler to determine the technical feasibility of handling, storing, and burning the fuel on a permanent basis and to measure the resulting air emissions. As a result of the testing, the University of Minnesota has concluded that oat hulls are a viable fuel and submitted a major permit amendment application on April 8, 2004, to make changes to Air Emission Permit No. 05301050-011. adds oat hulls and other biomass that may be approved in the future to the list of fuels that may satisfy the existing 70 percent total heat input requirement on steam generators;