The ASARCO Ray Mine/Hayden Smelter Complex near Hayden, AZ released of hazardous substances into Mineral Creek and eventually the Gila River. In addition, multiple groundwater wells down-gradient of the Ray Mine were found to be highly contaminated by a common leachate solution which was attributed to releases by ASARCO into shallow groundwater along Mineral Creek. Numerous spills of mine wastes also occurred at the Hayden Smelter facility, located approximately 20 miles southeast of the Ray Mine in the Town of Hayden. During bankruptcy proceedings the natural resources trustees, including the State of Arizona and the Department of the Interior-U.S. Fish and Wildlife Service, determined that resources under the jurisdiction of these agencies were likely injured.