1983. United States. Environmental Protection Agency. Whenever appropriate, portions of this metadata were directly taken from the metadata of the original data set. RCRIS (Hazardous Waste - Violations... U.S. Environmental Protection Agency.
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1983. United States. Environmental Protection Agency. Dataset depicts EPA Superfund sites throughout Arizona. This dataset was created from the CERLIS database. CERCLIS is a national computerized manag... U.S. Environmental Protection Agency.
2013. United States. Geological Survey. This dataset is provided as part of the USGS National Hydrology Dataset and depicts the point locations for major dams in all fifty states and Puer... United States Geological Survey.
1993. Arizona. State Land Department. This dataset depicts locations of mines throughout Arizona. This coverage is derived from the Bureau of Mines Minerals Availablity System (MAS) dat... Arizona State Land Department.
2000. Arizona. State Land Department. This coverage consists of spring locations in Arizona. This data set incorporates information extracted from both the USGS Geonames database and th... Arizona State Land Department.