The U.S. Environmental Protection Agency defines a brownfield site as

                  “real property, the expansion, redevelopment, or reuse

                    of which may be complicated by the presence or potential

                     presence of a hazardous substance, pollutant, or contaminant”.

Cleaning up and reinvesting in these properties protects the environment, reduces blight, and takes development pressures off greenspaces and working lands.- EPA

Brownfields are defined as properties that are contaminated, blighted, functionally obsolete, and can include historic properties.- MEDC.

Brownfield Redevelopment in Marquette County Presentation