The ground-water-flow model of the Albuquerque Basin (Kernodle,
J.M., McAda, D.P., and Thorn, C.R., 1995, Simulation of ground-water flow
in the Albuquerque Basin, central New Mexico, with projections to
2020: U.S. Geological Survey Water-Resources Investigations Report
94-4251, 114 p.) was updated to include new information on the
hydrogeologic framework (Hawley, J.W., Haase, C.S., and Lozinsky,
R.P., 1995, An underground view of the Albuquerque Basin: Proceedings
of the 39th Annual New Mexico Water Conference, November 3-4, 1994,
p. 37-55). An additional year of ground-water-withdrawal data was
appended to the simulation of the historical period and incorporated
into the base for future projections to the year 2020. The revised
model projects the simulated ground-water levels associated with an
aerally enlarged occurrence of the relatively high hydraulic conductivity
in the upper part of the Santa Fe Group east and west of the Rio Grande
in the Albuquerque area and north to Bernalillo. Although the differences
between the two model versions are substantial, the revised model does not
contradict any previous conclusions about the effect of City of Albuquerque
ground-water withdrawals on flow in the Rio Grande or the net benefits
of an effort to conserve ground water. Recent revisions to the hydrogeologic
model (Hawley, J.W., Haneberg, W.C., and Whitworth, P.M., in press,
Hydrogeologic investigations in the Albuquerque Basin, central New Mexico,
1992-1995: Socorro, New Mexico Bureau of Mines and Mineral Resources Open-
File Report 402) of the Albuquerque Basin eventually will require that this
model version also be revised and updated.
