Simulation of Ground-Water Flow in the San Andres-Glorieta Aquifer in the AcomaEmbayment and Eastern Zuni Uplift, West-Central New Mexico

摘要

The San Andres-Glorieta aquifer and overlying valley fill were studied incooperation with the New Mexico State Engineer Office, the Pueblo of Acoma, the Pueblo of Laguna, and the U.S. Bureau of Indian Affairs. The purpose of the study was to determine the effects of current and projected water development on flow in the Rio San Jose and on hydraulic heads in the San Andres-Glorieta aquifer. A digital flow model containing 2 layers, 76 rows, and 43 columns was constructed. The model simulated ground-water flow in the San Andres-Glorieta aquifer in an area from the Continental Divide on the west to the Rio Grande rift on the east and from Hospah, New Mexico, on the north to the Rio Salado on the south. Projections were made from 1985 to 2020 in which the current (1986) level of ground-water development was simulated; in addition, 10,000 acre-feet per year of withdrawal from the San Andres-Glorieta aquifer near the west side of the Pueblo of Acoma was simulated. Model results indicate that drawdowns would be about 200 feet after 35 years east of San Rafael fault and about 20 feet at locations west of the fault.