The bolson-fill aquifer is the major water-yielding unit in the Mimbres Basin, and ranges from 0 to about 3,700 feet thick. Ground water generally flows southward from the northern highland areas of the basin. Before 1910, ground-water recharge and discharge were approximately equal; by 1975, however, about 75 percent of the 146,000 acre-feet withdrawn per year was ground water, most of it from ground-water storage. Transmissivity of the bolson- fill aquifer ranges from 10 to 50,000 feet squared per day. Hydraulic conductivity ranges from 0.03 to 800 feet per day. Reported storage-coefficient values representing confined parts of the aquifer range from 0.00036 to 0.0036; those representing unconfined parts of the aquifer range from 0.04 to 0.24.
Additional publication details
USGS Numbered Series
Hydrogeologic framework and preliminary simulation of ground-water flow in the Mimbres Basin, southwestern New Mexico
Water-Resources Investigations Report
U.S. Dept. of the Interior, U.S. Geological Survey, [Water Resources Division] ;
Can be purchased from U.S. Geological Survey, Earth Science Information Center, Open-File Reports Section,