The 70-acre Prewitt Abandoned Refinery site is located near Prewitt, New Mexico. The refinery operated between 1938 and 1957. The refinery and other site structures came down; however, scattered demolished structures, foundations and exposed fill remained on the site. Refinery operations contaminated soil and groundwater with hazardous chemicals. The remedy for surface media is complete. Subsurface media may require additional cleanup.