Brownfields are "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." Brownfields blight communities across the country, inhibiting economic development and contaminating the environment. Brownfield sites include unproductive and abandoned textile mills, service stations, industrial facilities, and chemical processing plants. By cleaning up these properties, local governments can protect the environment, spur economic growth, and create jobs.