Safford

Babcock, H.M., 1976, Annual summary of ground-water conditions in Arizona, Spring 1974 to Spring 1975: U.S. Geological Survey Water-Resources Investigations 76-0059 Open-File Report, 2 sheets, scale 1:1,000,000.

Arizona Department of Water Resources, 1994, Arizona water resources assessment, V. II, Hydrologic summary: Arizona Department of Water Resources, Hydrology Division, 236 [266] p.

Arizona Department of Water Resources, 1994, Arizona water resources assessment, V. I, Inventory and analysis: Arizona Department of Water Resources, 253 p.

Spencer, J.E., 2002, Natural occurrence of arsenic in Southwest ground water: Southwest Hydrology, v. 1, no. 1, p. 14-15.

Spencer, J.E., and Johnson, R.A., 2001, Half-graben structure of the Tucson and Safford Basins [abs], in Annual Symposium, 14th, September 12-15, 2001, Proceedings: Arizona Hydrologic Society, p. 30-31

Arizona Water Commission, 1974, Annual report on ground water in Arizona, Spring 1972 to Spring 1973: Arizona Water Commission Bulletin 7, 46 p., 3 sheets, scale 1:250,000.

Schumann, H.H., Laney, R.L., and Cripe, L.S., 1986, Land subsidence and earth fissures caused by ground-water depletion in southern Arizona, in Anderson, T.W. and Johnson, A.I., eds., Regional aquifer systems of the United States - Southwest alluvial basins of Arizona: American Water Resources Association Monograph Series no. 7, p. 81-91.