Dale R. Rankin 2000 The Albuquerque Basin, located in central New Mexico, is about 100 miles long and 25 to 40 miles wide. The basin is defined as the extent of consolidated and unconsolidated deposits of Tertiary and Quaternary age that encompass the structural Rio Grande Rift within the basin. Drinking-water supplies throughout the Albuquerque Basin are obtained solely from ground-water resources. An increase in the population of about 35 percent from 1980 to 1990 has resulted in an increased demand for water. From April 1982 through September 1983, a network of wells was established to monitor changes in ground-water levels throughout the Albuquerque Basin. This network consisted of 6 wells with analog-to-digital recorders and 27 wells where water levels were measured monthly. Currently (1999), the network consists of 221 wells and piezometers. U.S. Geological Survey personnel collect water-level measurements at sites 1-88 and sites 165-221. Water-level and other data for sites 89-164 are measured by other agencies and reported to the USGS. application/pdf 10.3133/ofr00231 en U.S. Department of the Interior, U.S. Geological Survey ; Information Services [distributor], Water-level data for the Albuquerque Basin and adjacent areas, central New Mexico, period of record through 1999 reports