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 Cenozoic deposits that encompass the structural Rio Grande
Rift within the basin. Drinking-water supplies throughout the
Albuquerque Basin are obtained solely from ground-water resources.
The population of the basin grew from 419,000 in 1980 to 563,600 in
1990, a 34-percent increase, and resulted in increases in water
demand and ground-water pumpage. Between April 1982 and September
1983, a network of wells was established to monitor changes in ground-
water levels throughout the Albuquerque Basin. Water-level data were
collected at 85 wells and piezometers for the period of record through 1997.
Water-level data currently (1997) are collected annually at sites 11 and
53-57; semiannually at sites 1-10, 75, and 82; quarterly at sites
12-52, 64-74, 76, 77, 79-81, 84, and 85; monthly at sites 58-60, 78,
and 83; and hourly at sites 61-63.