Every two years, the Arizona Department of Environmental Quality (ADEQ) is required by the federal Clean Water Act to conduct a comprehensive analysis of water quality data associated with Arizona’s surface waters to determine whether surface water quality standards are being attained and designated uses are being supported.
This report presents an analysis of the basin geometry and structure of the San Rafael basin in southeastern Arizona. In addition, a new methodology for inferring concealed lithology is presented and applied in the San Rafael basin.
Materials that meet the criteria of Freedom of Information Act exemptions are not posted on this website. Culturally sensitive materials not posted here fall under this criteria.
Topics include land use, demographics, specific industry sectors, the role of non-labor income, the wildland-urban interface, the role of amenities in economic development, and payments to county governments from federal lands.
Travel with us to the windswept grasslands of the middle Agua Fria to camp under the stars, pound your kidneys into pate on some of the roughest, rockiest roads in Arizona, and visit the breathtaking cliff edge ruins and countless petroglyphs of Perry Mesa.
Surveys for Arizona Hedgehog Cactus in support of Resolution Copper Mining pre-feasibility and feasibility studies to develop an underground copper mine east of Superior, Arizona. Includes an Access database compiled of all known AHC observed in surveys from 2010 through 2012.
This letter report describes the static geochemical testing carried out on cleaner and scavenger tailing slurries. The static testing program is designed to provide data on the short term geochemical behavior of the tailings solid phase as well as an indication of the quality of associated process waters.
There are about a dozen major hydrogeochemical processes that can account for the chemical composition of most natural waters. One of these is the oxidation of pyrite, a process at least as important a source of sulfate in natural waters as seawater and sea spray, gypsum dissolution, and atmospheric emissions. The natural process of pyrite oxidation is fundamental to the super-gene alteration of ore deposits, the formation of acid-sulfate soils, and the development of acidity and metal mobilization in natural waters.
