The City of Albuquerque, New Mexico, is interested in gaining a
better understanding, both quantitative and qualitative, of
the aquifer system in and around Albuquerque. Currently (2000), the
City of Albuquerque and surrounding municipalities are
completely dependent on ground-water reserves for their municipal
water supply. This report presents the results of a long-term aquifer
test conducted near the Rio Grande in Albuquerque.
The long-term aquifer test was conducted during the winter of
1994-95. The City of Albuquerque Griegos 1 water production well
was pumped continuously for 54 days at an average pumping rate of
2,331 gallons per minute. During the 54-day pumping and a 30-day
recovery period, water levels were recorded in a monitoring network
that consisted of 3 production wells and 19 piezometers located
at nine sites. These wells and piezometers were screened in river
alluvium and (or) the upper and middle parts of the Santa Fe Group
aquifer system. In addition to the measurement of water levels,
aquifer-system compaction was monitored during the aquifer test
by an extensometer. Well-bore video and flowmeter surveys were
conducted in the Griegos 1 water production well at the end of the
recovery period to identify the location of primary water-
producing zones along the screened interval.
Analytical results from the aquifer test presented in this
report are based on the methods used to analyze a leaky confined
aquifer system and were performed using the computer software
package AQTESOLV. Estimated transmissivities for the Griegos 1
and 4 water production wells ranged from 10,570 to 24,810 feet
squared per day; the storage coefficient for the Griegos 4 well
was 0.0025. A transmissivity of 13,540 feet squared per day and a
storage coefficient of 0.0011 were estimated from the data collected
from a piezometer completed in the production interval of the Griegos
1 well.
